Our heavy ion deep cancer therapy clinical trial study starts

Recently, in the shallow tumor therapy clinical trial success based on the Chinese heavy ions in the treatment of cancer has made new progress, deep cancer therapy clinical trial study in modern physics, Chinese Academy of Sciences.

As of April 3, already have signed more than patients in clinical trials began in zhiyuanshu based in modern physics, Chinese Academy of Sciences of the Gansu province in heavy ion beam therapy cancer clinical research base to begin treatment. "The clinical trials still by Chinese Academy of Sciences Institute of modern physics and Lanzhou in Gansu province Cancer Hospital, Lanzhou Institute and other medical institutions, and the original combination of depth less than 2.5 cm of shallow cancer treatment trials, this is the depth of greater than 2.5 cm deep cancer clinical trials. "Modern physics, Chinese Academy of science and technology Deputy Commissioner Huzheng countries said. In November 2006, the Chinese Academy of Sciences Institute of modern physics and local health agencies to begin heavy ion shallow tumor therapy clinical trial research. Huzheng States that "has a 8 103 cases of shallow cancer clinical trials, efficacy was significant, indicating that the Chinese in heavy ion superficial treatment of human cancer clinical trial on the initial success. "In 2008, the new heavy-ion accelerator of Lanzhou cooling storage ring provides high energy heavy-ion beam treatment of deep tumor treatment Terminal in Chinese Academy of Sciences Institute of modern physics is built, and completed a beam test and the first cell and animal studies. Recently started heavy ion deep cancer therapy clinical trial research is on that basis.

Treatment of malignant tumours is haunting the world challenge.

Doctor of general use, though in the radiotherapy of cancer treatment on some show good results, but there is an obvious side effect, but in the course of treatment, will give the affected the surrounding healthy tissue causing greater damage. Unlike traditional radiation therapy for cancer e, X, compared to conventional x-ray, heavy ion beam with radiation damage to healthy tissue, the treatment course short, light cure rates high.

International advanced medical electronic technology is accelerating development (1)

Imagine this scene: a heart disease in the lungs is constantly producing effusion, this is the early symptoms of heart failure.

While the patient of an implantable sensor medical equipment through a Bluetooth enabled mobile phones at the same time with the patient and his doctors send signals to remind potential danger. Daydreaming?. This technology actually exists and is constantly improving, and the lack of a support infrastructure.

InCube company founders Mir Imran recently in Las Vegas 2009 International Consumer Electronics Show (CES) in a medical electronic discussion groups described above.

The participants discussed the implantable device of great potential, they can precisely and quickly monitoring and treatment is located anywhere in the world of chronic * disease patients, such as heart disease, epilepsy, diabetes and Parkinson's syndrome, etc.

In addition to the sensor implant, there are many more steps to improve people's health-care level.

Like insulin pumps and other equipment are already very mature, can offer services for all organs. Implantable Visual systems have also made significant progress. Micro electro mechanical systems (MEMS) and carbon nanotubes (CNT) nervous system implantation is providing human how to conduct large amounts of information.

Used for the diagnosis and treatment of many health problems of tools are being rapidly improved.

Some surgical instruments can be accessed through the catheter body almost every section. Sustained-release drug capsules are becoming more efficient, and enhanced diagnostic and therapeutic effect. External device can be worn on the treatment of applications is also very important, and lab-on-chip devices can quickly sampling, diagnosis and reporting of important medical tizheng patients.

Healthcare technology can meet the emergency needs.

Worldwide approximately 80% of healthcare costs for treatment of chronic diseases of the elderly. Approximately 6 million patients suffer from chronic diseases, such as chronic obstructive pulmonary disease (COPD), congestive heart failure and epilepsy-mental disorders etc. Longer life, lack of health care professionals and health care costs spiraling makes the situation worse.

"Single United States healthcare market on tat 2.5 trillion.

"Diamond Management & Technology Consultants company analyst Andrew Rocklin said," anyone not want to participate in this market will lose significant revenue potential. "But the effectiveness of the techniques demonstrated before a series of obstacles must be overcome, one of which is the healthcare system, including the United States and around the world, the need for a thorough reform.

Diabetes and heart disease Papuans

Debiotech company and ST (STMicrolectronics) jointly announced the company has developed the first disposable insulin pump Tablet prototype (Figure 1).

The use of Microfluidic MEMS technology of nano-pump has passed the initial testing stages, and since last summer started the mass production. Its size is the original one-fourth of the insulin pump equipment, worn on the skin is almost invisible.

This Nano pump use of continuous subcutaneous insulin injection (CSII) technology perfectly simulate the secretion of insulin by the pancreas, the simultaneous detection of naturally affect patient safety potential pump failure.

According to the two companies, and several times a day you must make separate insulin injection, it costs less, is a more attractive alternative technologies.

University of Michigan researchers Mark Meyerhoff is helping United States * military research laboratory develops implantable glucose sensor of subcutaneous, this sensor can real-time monitoring diabetes symptoms.

His use of polymers to the birth of low concentration of nitric oxide. As a surgical implant type current meter glucose sensor outer envelope, these materials have better bio-compatibility, because they can reduce the implantation of inflammation caused by the sensor. Cardiovascular disease is the cause of death and disability of the common factors. United States-third of deaths by including arrhythmia, heart disease, which would also encourage people to develop medical monitoring equipment and tools. Belgium IMEC company design wireless electrocardiogram (ECG) disk monitor is a device (Figure 2).

Shanghai medical information: pioneer of considerations (1)

How to convert all kinds of medical institutions to consolidate information systems, breaking information Islands, has been the medical industry information most headache problem.

In the new round of health care reform, cross-sector information system will become the innovation system. But how information technology can be used?

Building the patient-centric cross-hospital clinical information sharing system, through technical innovation, top-level design created a large hospital as well as vertical integration of information sharing and collaborative service mode.

Shanghai "hospital with a project" to clinical information sharing as a breakthrough, mitigation "costlier" issue, is an important medical reform initiatives and innovative mode of practice.

Suddenly as a night of spring.

Hospital correct respectable unprecedented powerful potential intervention medical information. Medical, this is the most recognized information sector hard nut to crack, what will happen?

The doctor without long waiting in the team, each time a referral without holding a stack of patient records, doctors in the diagnosis and treatment process can be intelligently medication safety reminder ...

This wonderful social scenes in Shanghai is well underway for the construction of the "hospital with the project" Chiang Kai-shek is becoming a reality.

Break between tangible and intangible hospital barriers, allowing isolated resource flows through the medical information for hospital information shared between, dredge limited medical resource provides collaborative services, Shanghai medical service will enter a new era of "intelligent networks".

Shanghai hospital with engineering covers Shanghai Shen Kang hospital development centre (hereinafter referred to as Shen Kang Center) belongs to the municipality of 23 three hospitals, using information technology to the hospital patients seeking information link to avoid unnecessary duplication of inspection, testing and medication, thereby significantly reducing the cost of medical treatment, palliative patients "difficulty, expensive" issue.

Shen Kang Centre is a public hospital reform Mo separately, as the pioneer of Shanghai Municipal Government of construction requirements, performed the duties of investor-owned asset, the municipal hospital in the State-owned assets investment, management, operation of duty and the responsibility of the Government of the construction.

In September 2005, Shen Kang AECT started brewing implementation hospital with projects, implementation of respective medical institutions clinical information sharing on the limited use of medical resources for consolidation. In October 2006, Shen Kang Center was the first launch Shanghai hospital with engineering system construction; in 2007, in Shanghai Science and Technology Commission of the Organization, and Wanda information co., Ltd., Ruijin hospital, changning district community health centre, zhabei district community health services administration Center, and other units with the application is a science and Technology Department of the "eleventh five-year" national science supported project support. After three years of construction, the project has achieved a 23 three hospitals and six branch of lateral sharing of medical information, and with the Shanghai changning, Minhang, Luwan, zhabei district-level health information on four platforms to achieve vertical Internet for horizontal and vertical two aspects of information exchange and business collaboration to build bridges to the new birth of healthcare service model laid the Foundation for information technology.

Forearmed, not pre is not set.

In the face of each hospital information system status of heterogeneous strong, Shanghai Science and Technology Commission works to promote the hospital with a well-planned layout: 2005 soft subjects on Hospital heterogeneous systems interconnection issues research; in 2006, in a single hospital applied digital health support platform (DOP) consolidation Yan Chai Hospital various heterogeneous systems of diagnosis and treatment of data, and then in Yueyang hospital, feikeyiyuan and children Medical Center application, after intensive Internet upload data to the hospital with Centre; 2006 over the same period in changning district implements regional medical information consolidation and sharing; 2007 organized Shanghai advantages apply to the Ministry of science and technology units to support projects; 2009 layout related topics to deepen the use of Internet sharing of medical information, provide the public with full health services and collaborative health care services. The layout of these projects, effectively supporting the Shanghai Municipal Hospital with works of construction.

The wisdom of the medical

Shanghai hospital with engineering focuses on integration of third-level hospital medical resources, share information, services, core is the benefit of people's livelihood.

This year's 65-year-old aunt is "three dry high" crowd.

15 years, she has been regularly to the city level designated hospitals for treatment. The long wait, complex registration consultation processes and billing, take medicine, iterative, traffic congestion, stairs and queued for old she became frustration.

Today, the stem of aunt himself Luwan district community health centers doctor, general practitioner community has long since passed the EHR (electronic health records) won her basic health records and personal information.

Through the initial diagnosis, the doctor advised her to tertiary hospital for further examination and confirmed, and through the hospital with engineering platform to issue electronic referral Ruijin hospital, direct booking the hospital's outpatient and biochemical and Imaging tests, aunt you no longer have to queue up clinic as before.

Stem aunt took 23 three accredited hospital hospital unified lianka, Ruijin hospital, clinic doctors through the hospital with a platform of "doctor workstation" will be able to directly access to her past in many hospitals do Biochemistry and radiology test report, direct diagnosis and prescription.

Convenient treatment processes, accurate diagnosis and treatment for dry aunt laugh-by-Word, and finally solved her broken heart for many years.

Use C # the development of electronic medical record system temperature graph

EMR (Electronic Medical Record, EMR) system is a digital technology, computer technology, communications technology, software engineering, technical, and other graphic images integrated multidisciplinary, high-tech projects.

The complete data, data processing, network transport, medical support, statistical analysis, etc. are all paper records.

Temperature is the electronic medical record system an important data, such as a patient's body temperature rises could allow clinicians to know the symptoms of patients with fever.

In the electronic medical record system, temperature single against user is hospital nurse. Nurses daily records of the patient's temperature, and other information, entry to the database, the system automatically generates single-electron temperature and draw a graph. Temperature graphs visually displays the patient's temperature, and other related data, and related diseases and to treat the combination of knowledge, as further diagnosis and determine treatment options.

I participate in the development of electronic medical record system under a large hospital's actual demand, on the .NET platform using C # language throughout development.

This article focuses on electronic medical record system temperature curve of the design and implementation.

1 the main function of electronic medical records system

This system according to the actual needs of the hospital, the main purpose is to capture patient data, so that it can provide clinicians with the diagnosis and decision-making information, further to the information to be used in clinical research.

System main features as shown in Figure 1.

2 temperature curve design and implementation of

2.1 thermometer generation

In the electronic medical record system, each hospital treatment of the patient in the hospital during a medical record number, this is a sign of patients determine code, usually in the database system as only the corresponding codes and keywords.

The patient's home nurses to patients for temperature, pulse, respiration, and various aspects of testing, will these data entry to electronic medical records system, the system automatically generates a single body temperature.

In the patient's temperature single, you need to record and analyze the patient's temperature transformation.

Temperature single information "temperature" and "pulse" and "breathe" the information to every 4 hours recording time, at 4 pm, 8 pm, 12, 16, 20, 24, when the time period. The "stool frequency," "the number or volume of urine" and "comprebensive" and "emissions" and "blood", "weight" and other information is recorded once a day. According to body temperature single information to 1 day to 1 unit, draw 1 days patients in various time periods of "temperature" and "pulse" and "breathing" of the curve changes, as well as record number of the "stool", "the number or volume of urine" and "consumption" and "emissions" and "blood", "weight" and other information. Whole body temperature chart 1 shows only 7 days. In your diagram with coordinates and curve describes the patient's temperature of continuous changes visually satisfying nurse to patient's temperature, respiration, pulse, and other information published and query needs. Figure 2 is a temperature single display interface.

2.2 temperature mapping

Temperature chart is based on the temperature of the auto-generated data.

Since the temperature chart show the patient at a time 7 days temperature changes, so the design of the page, on the length of time the patient through the page each time you skip 7 days to ensure the patient's temperature display of information integrity.

2.2.1 C # GDI + drawing

Temperature mapping from .NET base class set up GDI + implementation, the base class can be used to complete the custom drawing on the screen, the appropriate directive is sent to the graphic device driver, make sure that the display screen shows the correct output.

In GDI, identify the output device is to use object device context (DC).

The object stores information about a specific device, and can convert GDI API function calls to send to the device for instructions. Implementation of the function you want to use Paint to a GDI + drawing technique. By overriding the OnPaint Form class (PaintEventArgs e) to perform drawing operations.

In OnPaint (), the first reference from the PaintEventArgs in the paint graphics Graphics object.

Finally, call the base class's OnPaint () method.

When the application first starts, the first time a window appears, call the OnPaint (), there is no need in the constructor copies the drawing code.

Because the entire body figure comparison, but display window classified as 800 × 600, in order to be able to complete display temperature graph document, the document is out of the window, the notification window scroll bars appear in the right hand side.

To this end, the entire document as a range (1 800, 886) pixels, and in the form designer in the properties of the AutoScroll property is set to True. In this way, when the temperature chart more than window scroll bars automatically appear.

2.2.2 absolute coordinates to the relative coordinates transformation

In general the drawing code, because the rendering of the graphics area is less than the size of the window, there is no need for special attention.

Graphics instance by default is the coordinates are interpreted as relative to the window, it does not know the scroll bar. When you slide the scroll bars, Windows does not require the application to redraw the already displayed on the screen. Windows only pointed out the screen currently displayed content can smooth move to match the position of the scroll bar. For extra document parts in applications is first displayed, there is no draw that portion of the window, because in the scroll window, this part of the window area outside. This means that Windows requires ScrollShapeS application draws the region. It raises the paint event, put this region as cut a rectangle, in window and original graphic is displayed, it will appear a window with multiple graphics overlap, resulting in a graphic confusion.

The solution is to put the Graphics instance with the default coordinates to the coordinates relative to the coordinates that are relative to the upper-left corner of the window, not the upper-left corner of the start of the document, the absolute coordinates converted to relative coordinates.

Here in Figure 3 shows this conversion.

Solid rectangle marked with a screen area of borders and the border of the entire document.

The dotted rectangle marked attempt to draw a rectangle and ellipse. P tags to draw a random point. When you call drawing methods, providing the Graphics instance and from A point into a vector P point, the whole vector is represented as a Ponit instance. But actually need is from point B to point P of the vector. The problem is that here only know from A point into a vector point P, P relative to the coordinates of the upper-left corner of the document, and to document the P points drawing. Also know from point a to point b, of the vector is scrolled, it is stored in a property of the Form class AutoScrollPosition. Want to know from point b to point vector P only require vector subtraction. Graphics class of the TranslateTransform method can make these vector calculation. Here it transmit horizontal and vertical coordinates representing Windows drive gone, and the upper-left corner of the relative to the upper-left corner of the document of the vector (AutoScrollPosition property, it is a figure from a to B vector), and Graphics device considered window area relative to the document area, dealing with these coordinates. As long as the drawing code by adding the following statement: g.TranslateTransform (this.autoscrollpositiort.x this.autoscrollposition.y); you can solve the problem of transformation.

2.2.3 temperature diagram rendering technology

Temperature mapping according to body temperature in patient related information, using only C # GDI + to draw out the appropriate temperature graphs.

In the program first absolute coordinate and relative coordinate transformation, and then use the Pen class defines the brush, Brush class defines the brush color, for the need to fill in with a brush to fill, and then call the DrawLine method of the Graphics class to draw the line. In the DrawLine method, you offer the brush type, the segment start and end points coordinates and other parameters.

Temperature graph after initialization, according to pass from the thermometer of the patient number as your global variables in the diagram, the database query and the query results are converted to a coordinate, passed to the draw method of the DrawLine and FillEllipse, draw graphics.

Figure 4 is a temperature graph display interface.

2.2.4 temperature diagram page implementation

Because every time the body temperature chart only shows patients 1 week temperature conversion information, to display the 1 week prior to your information, you can use page functions.

The page features implemented using mainly used when reading data to Read () method. By Read () method to read data while the current pointer down one bit. Initially it is located in the data set before the first row, the first call to Read () will put the pointer on the first line, making it the current row. With each call to Read () causes the pointer to move down from the top down in order to obtain the dataset row. Code is as follows:

Where the variable n is the global variable from the scrolling buttons to be assigned.

To the current variable n minus 1 x 7 is required to skip the number of intervals, to date, the date for the data set filter, elects this week for the date stored in the array array.

3 conclusion

Electronic medical record is the hospital information development trend.

According to the requirements of the standardized HL7, the current domestic electronic medical research is far from perfect, it is necessary to work out perfect adaptation to the domestic use of hospital electronic medical record system also needs further study. This article on using C # drawing electronic medical record system temperature graph technology, tried to improve the electronic medical record system do useful attempt. Electronic medical record system-related research will be evolving and in-depth, and electronic medical record technology architecture and software process will become more and more mature.

Use of high-performance ADC creates a new magnetic resonance imaging of the send/receive architecture (1)

Summary: this article discusses magnetic resonance imaging (MRI) system works, the systematic use of hydrogen atoms in the magnetic field of the movement to form a clear medical images.

The article describes a typical magnetic field type and current high-resolution MRI system relies on superconducting magnets. This article also discusses appropriate arrange gradient coil formation process of 3D image and they and the interaction between the RF signal, MRI System block diagram.

Overview

Magnetic resonance imaging (MRI) system to provide a clear image of human tissue, System testing and treatment of hydrogen atoms in strong magnetic field resonance magnetic excitation in pulse fired the generated signal.

Hydrogen nuclei spin campaign determines its own intrinsic magnetic moment, in strong magnetic field, the hydrogen atoms are aligned.

Simplicity, you can put a static magnetic field of the hydrogen atom as a tensioning rope. Nucleus has a resonance frequency or "Larmor frequency", depending on local magnetic field strength. Like a rope under tension in external resonance occurs. In a typical 1.5T MRI magnetic field, the resonance frequency of the hydrogen atom to 64MHz.

Appropriate magnetic resonance excitation or RF Pulse excitation (frequency equal to hydrogen nuclei resonance frequency) to force the nuclear magnetic moment some or all of the effects of magnetic field is offset to the vertical plane.

Stop motivation, nuclear magnetic moment will be restored to the condition of a static magnetic field. Atomic nucleus in rearranging of release energy in the process, the resonance frequency (depending on field strength) of RF signals, MRI imaging system on the signal to be detected and form an image.

MRI imaging system block diagram

Who indicated that they will soon announce the arrival of an influenza pandemic

The World Health Organization (WHO), Assistant Director-General, Fukuda said on 9 November, WHO increasingly approaching announced an influenza pandemic, but first want to make sure that all is ready, avoid panic.

Fukuda on influenza a H1N1 influenza virus continues to spread.

Following the outbreak of April in North America, Australia after extensive outbreaks have been around 1000 cases.

Outside North America confirmed large crowd diffusion, will promote flu alert level from the current 5-level rose to the top-grade 6.

Fukuda said in a conference call: "in the past few days the situation varies greatly, very close to the influenza pandemic, or we are increasingly approaching announced a flu pandemic.

”

He said it would alert level to 6-level description of a new influenza spread of geographic range.

"This does not mean that the severity of the situation, or had serious increase in the number and proportion of increase than now.

”

In his view, declare influenza pandemic is not merely made an announcement that simple.

Who must ensure that countries have the capacity to cope with new situations, properly handle public reactions.

"One of the key problem is that we want people to know that after an influenza pandemic will not be ' excessive panic '.

We want them to know that the current outbreak is still relatively modest and so on. ”

He stated that who and its 193 Member States is intensifying the measures taken, such as the development of vaccines, antiviral stockpiling.

Semiconductor technology for next-generation medical equipment research and development (1)

Semiconductor company developed cutting-edge technology allows engineers to design can improve human health conditions of equipment.

Rapidly rising health care costs, obesity and chronic diseases of all kinds, as well as popular, the large increase in the elderly population, all of these factors on those users affordable and reliable to various medical equipment needs gradually increase, including patient care equipment, medical imaging equipment, as well as a variety of inspection instruments. In modern history, never to be what it is today, the semiconductor industry is for various medical device development paving, save countless lives, while also significantly reducing healthcare costs.

Previous major medical device has been redesigned into today's portable devices, some devices like mobile phones, size and even smaller.

But like the ultrasonic system for medical devices of this kind can only be used in the past, hospitals and medical clinics in big cities, and now has spread to rural small medical clinics and ambulances. With medical equipment of miniaturization and portable requirements evolve, in order to support including weight and more light and smaller portable systems, such as the next generation of medical devices, semiconductor manufacturers face huge challenges, they must develop integrated chip.

Patient monitoring system

Regardless of the patients in hospitals, care facilities for the continuous observation of critically ill patients, and the cost to less than traditional bed care system.

Usually the patient monitoring system including EKG (electrocardiogram), blood pressure, body temperature, blood oxygen saturation and respiration monitoring system, sometimes also includes AED (automated electric shock defibrillator) functionality in these systems often contain a high resolution ADC (ADC), low noise amplifier, instrument amplifier, and have been adopted in this field for many years in various combinations of analog functions. These are mature, high-performance system, major semiconductor manufacturers to put a lot of research and development of many innovative chip.

In these systems are equipped with the ward at the same time, they are also becoming more and more small, or even be able to fly to the patient's belt.

In the near future, EKG, blood pressure and activity monitoring with wireless communication technology that allows patients to stay in their homes, and patient safety key signs and reliable real-time monitoring, which will substantially reduce the total cost of care.

As the baby boom era was born people gradually entered the aging, need special care of the increasing number of elderly, home monitoring devices demand is rapidly increasing.

According to the World Health Organization information on the 2006 global 60 years of ageing population has reached 6.5 billion. By 2025, the figure is expected to be increased to 12 million. In the United States, 65 years and older population in the total population is already occupy a larger proportion than ever before, but in the 21st century will be steady growth.

"Because of the growing ageing population, chronic disease care costs will be fast growth," ADI Healthcare Division of global strategic marketing manager Paul Errico said, "today is home to the design of medical devices to be able to monitor blood pressure, blood sugar levels and heart rate, when the device appears in the doctor's warning.

This will eliminate or reduce patient frequently go to the clinic or hospital doctor's fees, resulting from the doctor or hospital for further patients bring Gospel. ”

To become a major component of health care management, patient monitoring systems and other equipment, as well as other essential patient information resources to achieve full interoperability.

Despite extensive interoperability also failed to materialize, but this has become a medical and information technology industries need to give priority to solving the problem. For example, a company named Continua Health Alliance organization is working with the technology industry, the medical equipment industry and the healthcare industry's leading enterprise cooperation in order to establish an interoperability solution system.

Medical imaging

As technology continues to improve, including CT (computer x-ray tomography) scanners, and ultrasound systems, medical imaging applications continue to grow, thus doctor's analysis and Diagnostics provide clearer and more precise image of the human body.

In the field of medical imaging, a single system of number of channels increasing, rendered fast also focus on semiconductor companies to improve integration and reduce power consumption, and lower the cost of each channel. Ultrasound, CT, MRI (magnetic resonance imaging) and PET (positron emission tomography scanners), etc, all of these high performance systems are driving the standard device in power, speed, accuracy and dynamic range wait performance progress.

RFID smart labels help monitoring patient medication

Wakefield Rex Cancer Center will now proceed to evaluate a suite and phone drug monitoring system-use of RFID smart labels, DOTmed reports.

The system will mobile phone into a drugs detectors, from pharmaceutical packaging of RFID tag read data.

Real-time, wireless mobile phones to gather information to help confirm the patient at the right time to take the right medicines, at the same time, monitor any possible side-effects.

Data sent to a secure server for clinical view and send alerts, if drug loss timely intervention.

If patients stop taking drugs or less than the required dosage, hospitals can also be detected in time to avoid a greater health risk.

Implantable artificial heart pacemaker application and future development

1. Introduction to the normal case, the heart of the sinus node right Atria can automatically, rhythmically emits electrical impulses through cardiac nerve conduction system from different parts of the heart to issue instructions to make myocardial contractility, heartbeat, blood pumping to the whole body. If myocardial nerve conduction system disorder or sinus, atrial sinus knot cannot regularly issued electrical impulses, download electrical pulse, heart arrhythmia occurs, even beating, endangering the lives of patients. Artificial cardiac pacemakers can sick heart as needed according to the need to give a direct electric stimulation, the heartbeat is normal. Pacemaker in form can be divided into external temporary pacing and implantable (or permanent or buried), the former for emergency treatment of temporary pacing, pacing the latter for the long-term. This article primarily discusses implantable artificial heart pacemaker, namely the general sense of the pacemaker. 2. artificial heart pacemaker principle and construct artificial heart pacemaker is a very delicate and reliable with high levels of electrical impulses stimulate is applied must have type of pacemaker pulse generator, and a specially crafted wire (i.e.: pacing catheter electrode) connection, and send electric pulse pacemaker stimulates heart so excited cannot or conduction of cardiac stress and pacing of medical electronic devices. Artificial heart pacemaker mainly consists of two parts: (1) pacing catheter electrode: it will pacemaker output signal lead to myocardial for pacing, on the other hand will feel the heart beat of the signal itself (cavity ECG ICG) feedback to the pacemaker to control the issuance of pacemaker pulse. It is the endocardium electrode, from early development to dual single-pole, or even more extreme. As a long-term pacing catheter electrode must be good with biocompatibility, good toughness, anti aging, corrosion-resistant materials. Electrode wire usually aier near alloy (Elgiloy) or nickel-cobalt-chromium-molybdenum alloy wire-wound into a spiral pipe. Conductor outer insulation materials are selected high-purity silicon rubber or medical polyurethane [3]. Electrode head of materials to surface activation isotropic carbon low temperature pyrolysis or Platinum. (2) pacemaker pulse generator: it consists of pacing circuits, battery and metal casing. Pacemaker energy required is small size, large capacity, slow release energy, sealing performance and reliable battery, at home and abroad the implantable pacemaker commonly used lithium-iodine battery so that the pacemaker continuous life reaches more than 10 years. Since titanium biocompatibility, no rust, so the current pacemaker shell are made from titanium materials stretch forming, ministries to larger circular connection, using laser welding for package [1]. From the 1980s onwards pacing circuit began to manufacture commonly adopted integrated circuit maker main circuit; and CMOS ASIC pacing chip and resistors, capacitors, Reed pipe, and other electronic components together installed on ceramic substrate constitute hybrid (Hybrid) thick film IC as a standard part of pacemaker circuit [3]. 3. artificial heart pacemaker indications (1) height or complete atrioventricular block with Ah-syndrome or syncope episode. Asymptomatic, heart rate less than 50 times/min or QRS spacious malformations and ventricular arrest ＞ 2 seconds as a relative indication. (2) complete or incomplete third bundle branch and double beam branch block with intermittent or paroxysmal complete atrioventricular block, or ventricular rate "4O/min;-bundle branch block with Ah-syndrome or syncope episode; completeness of alternating left and right bundle branch block, his figure confirmed H-V extension. (3) second degree ⅱ atrioventricular block with ' a ' syndrome or syncope episode. Sustained second-degree ⅱ atrioventricular block, ventricular rate less than 5O times per minute without symptoms as relative indications. (4) sick sinus syndrome has the following features: serious sinus bradycardia, ventricular rate "45 times per minute, seriously affect the organ blood supply, heart failure, angina pectoris, dizziness, black; bradycardia, and sinus or sinus room block, r-r interval ＞ 2 seconds with syncope or Al-Syndrome outbreak; bradycardia-tachycardia syndrome have syncope or Al-Syndrome outbreak. (5) use of tachycardia pacemaker or defibrillator, ectopic tachyarrhythmia drug treatment is not valid. (6) recurrent sinus syncope carotid arteries and heart beating. 4. artificial heart pacemaker ' development history and current status of artificial heart pacemaker clinic, the widely used drug for invalid severe arrhythmia patients get treatment, significantly reducing cardiovascular disease mortality, is the modern biomedical engineering for humanity a significant contribution. In 1932, United States of thoracic surgeon Hyman invented the first electric by clockwork-driven pulse generator, with two needle puncture Atrium makes the beating heart complex jumps, he named the artificial heart pacemaker (Artificial Pacemaker), thereby creating an artificial heart pacemaker great era of cardiac arrhythmias. Pacemaker clinic is really used in 1952. United States physician Zoll in vitro pacemakers, carries on the artificial stimulation of the thoracic cardiac pacing, where the two are on the verge of death, heart block, thereby promoting a pacemaker in clinical applications and development. Sweden 1958, 1960, the United States Elmgrist Greatbatch respectively inventions and clinical application of the implantable cardiac pacemaker. From pacemakers to implantable artificial heart pacemaker era, toward the long life, high reliability, lightweight, compact and functional direction. Early pacemaker is natural frequency (or non-synchronous), only rescue and treatment of persistent atrioventricular block, sick sinus syndrome, syndrome, intermittent bradycardia does not apply and cannot be synchronized with the patients own rhythm, ventricular competition occurs causing more serious arrhythmias. To this end, in the mid-1960s has a synchronous pacemakers, which houses the synchronization triggers-(VAT) pacemaker is specifically used to atrioventricular block, and ventricular on-demand (VVI) is at home and abroad the most common cardiac pacemakers. In order for the pacing and cardiac own pacing feature close [1] [3], have appeared in the 1970s and was more in line with the accessory order onwardsBo's dual Chamber pacemaker (DVI), and be able to treat a variety of versatile bradycardia pacemakers (DDD). At this point, the pacemaker's basic treatment has been developed completely. In the 20th century 80 's, the lightening pacemaker in addition, the miniaturization of improvement, a program control and telemetry functions, use external program (Programmer) is available on the implantation of pacemaker for pacing mode, frequency, amplitude, pulse width, perceived sensitivity, refractory period, A-V programmable delay parameter; you can also work on the pacemaker, the status monitor will work parameters, battery consumption, myocardial impedance, information and even the intracardiac ECG, the pacemaker is sent to the external program of Telemetry receiver for display [3]. 1990s, pacemaker and anti-tachycardia and develop better suited to the physiological changes of human activity has made progress, there has been resistance to tachycardia Adaptive pacing and frequency of pacemakers (DDDR), artificial heart pacemaker be dealing with fatal arrhythmia effective weapons. With the development of science and technology, now has more performance of biventricular/double atrial synchronous three Chamber pacemaker and defibrillator function with the pacemaker. 5. artificial heart pacemaker identification code North America pacing and Electrophysiology (NASPE) and the United Kingdom pacing and Electrophysiology Organization (BPEG) to table 1 for the identification of encoding. Generally use the first three identification number recognition pacemaker pacing cavity, the cavity and the perception of perception (P or R-wave, or both) of the response mode. Choose from a fourth location represents one of the two different functions: a program-controlled capacity or frequency Adaptive pacing. P represents the one or two simple programmable function; M-controlled, representing a wide range of features, including models, period, pulse width sensitivity and perception. C indicate information delivery or through one or more of the physiological variables measurement for Adaptive pacing frequency control. The fifth bit indicates special features of tachyarrhythmia: P representative against tachyarrhythmia ventricular pacing, S represents the complex or defibrillation electric shock, d double feature (pacing and shock). In all locations, O specify generic or features are not provided. Table 1: NASPE/BPEG (NBG) pacemaker identification code [2]-the first letter of the second letter of the first three letters of the fourth letter of the first five letters of the classification pacing Chamber perception Chamber response mode programmable frequency response telemetry function of tachycardia and defibrillator function letter v = atrial ventricular A = D = dual Chamber S = single V = A = atrial-ventricular O = no D = dual Chamber S = single I = inhibit T = trigger O = no D = double P = simple programming M = multi-function programmable C = telemetry frequency response R = O = no P = anti-tachycardia pacing S = electrical cardioversion D = P + S 6. artificial heart pacemaker's future after decades of development, the implantable cardiac pacemaker has not only applied to the treatment of heart block, slow-fast syndrome, severe arrhythmia, along with its many new therapeutic effect. These new indications are: orthostatic hypotension, malignant neural cardiac syncope (vasovagal), congenital Q-T interval syndrome and simple PR interval prolongation. They will be the pacemaker application of one of the future direction. A low-power microprocessor chip as a core part of pacemaker circuit, will enable the performance of the pacemaker circuit to modify the software, will change the current full customization (ASIC) design, every improvement is a lot of resources and time, will significantly reduce new pacemaker circuit development cycle and costs. As computer technology, telemetry, the development of new technologies, future may appear fully automated pacemaker. This automation of pulse generator according to patient electrophysiology of basic situation automatically adapt, with time cycle of analysis, sensor input and automatically interpret the stored information to determine the most appropriate pacing mode. Pacemaker to automated determination of atrial and ventricular pacing and perception threshold and, depending on the sensor information automatically programmed basic frequency [4]. 【 References 】 [1] Liu Liang, Gu jiugao. Practical artificial cardiac pacing technology. Nanjing press. 1991.5 [2] corpus luteum steel, etc. Practical cardiac pacing. Tianjin science and technology press. 1993.12 [3] party Sze. Pacemaker technical progress. World medical device. 1998.4 [4] Jihong, Zhang Cheng. Pacemaker's latest progress. Beijing Medical University Press. 2000.9

Technology foresight: future trends in home healthcare equipment

Future home healthcare equipment of two key characteristics for connectivity and power consumption.

For many cases, can be diagnostic equipment of clinical records accurately pass to healthcare professionals and patients the ability of self care is equally important, such as diabetes management. For example, ECG (electrocardiogram) waveform can be used as a printout or signal through electronic communication channel to the clinician.

Electrical safety for portable medical equipment is equally important. For example, when the ECG equipment needs directly with computers and other devices are connected, the patients face the potential threat of electrical accidents.

ADI's ADuM4160 USB isolator can overcome this problem, enable patients and computer and network maintain complete electrical isolation, while also achieving full function of ECG and connected to the computer. In addition, portable devices measuring front end only a small amount of power you can drive amplifiers and data converters, ADI's isolated power ADuM5000 DC-DC converters can directly provide isolation of power supply, eliminating battery charging or replacement needs. These devices also can realize many of the previous requirements directly with patients for electrical connections household healthcare equipment design, and be able to achieve with a USB connected directly to a computer, providing storage, analysis and transmission of the results of all the features. These techniques also allow medical equipment designers can more easily meet IEC 60601 's latest requirements.

In addition, as the medical industry, many of the original is considered a medical industry edge industries such as home care system-related insurance will also be more and more involved in the construction of the medical industry.

However, because there is not yet implemented extensive interoperability, so for medical systems and information technology industry, this is an emerging development goals.

Once again, with the increase of population ageing, home care type of application is also a trend.

In addition to now have more application in the home blood glucose, blood pressure measurement, we expect future ECG equipment will go into the home. There will be more participants to this sector, will explore the different business models.

For example, cardiovascular disease to humans of destruction is very large, therefore, an electrocardiogram (ECG) may become a guardianship of our daily needs.

Also, the ECG devices added to some forward-looking technology, such as using acceleration sensor to the patient's movements to care, to help the doctor determine, to a certain exercise ECG status of patients. Sometimes, in the electrocardiogram (ECG) joined the MEMS, also monitors the patient does not normally happen, for example, in patients with fall, so that doctors and patients guardian can discover these emergencies.

Portable medical equipment, home of the future medical devices market in strong impetus.

And hospitals with medical devices, portable medical product needs in a small number of devices to achieve many of the performance, need to be able to more accurately handle more complex analog and digital signals.

This naturally brings power and cooling, as well as reliability, design complexity, and other challenges. This will require chip suppliers is committed to technical innovation and progress. Medical electronics has always been the ADI areas of concern. We have a world-leading analog and digital technology, continuous technological innovation is our goal to own that market provides cost-effective products and solutions. For example, the newly launched AD8235, as today's global market volume of the smallest and strongest performance at the lowest power consumption, it is an instrumentation amplifier in order to meet the ECG and other medical devices, portable-specific requirements.

For home medical equipment, in order to allow users to use more convenient and longer battery life and lower cost, product size and power consumption is critical.

ADI has such as 1.8V precision amplifier, new low-voltage techniques and processor technology development effort that will meet market needs, a more competitive technological capabilities.

Dimensions (portable), power (battery life even longer), ease of use (smart device), networks (from the specialist for data analysis, etc.) and cost (for end users, the price acceptable) is the home of the major challenges of medical equipment.

To help system builders overcome these challenges, ADI has been committed to in the following areas to help them resolve these challenges: signal conditioning products, such as amplifier/converter/processor (including integrated solution); power solutions; wired/wireless communications solutions.

Take advantage of our leading core technology, in line with market needs as well as easy-to-use solution, we have full confidence in helping our customers achieve market success.

UBS: China medical device industry and domestic demand strong

1. China medical device industry high growth

Chinese medical device industry is a fast-growing new industries, including medical equipment, consumables and reagents.

Since 2001, medical devices already recorded 29% average annual growth rate of the compound. UBS is expected in 2008 China medical device market overall size is about 1,000 billion yuan (ex-factory price calculation). This is a global medical device market accounted for about 5%. Global medical device market worth about us $ 3,000 billion, in recent years, the growth rate of 10%.

China medical institutions instruments overall standard is relatively low.

In addition, in the different regions and health care institutions, medical equipment distribution is uneven, with a large number of equipment mainly concentrated in large urban hospitals. Rural hospitals and health centres in urban communities exist the shortage of medical equipment. Health care reform is designed to address these issues, and trends is the increase in rural and urban community health service centers.

2. from the Medicare reform of two large growth momentum

The Chinese Government has announced in 2009 to 2011, Central and local government in healthcare investment 8,500 billion RMB.

According to the Ministry of finance news about 5,600 billion RMB for expansion of medical insurance, 2,900 billion RMB for the hospital.

UBS believes that health insurance reform to the medical device industry has played the role of help will be more than the pharmaceutical industry, the medical equipment industry not only benefit from health insurance coverage and seeking ways to improve lead to increased demand for health care, and also benefit from the Government on the basis of the level in the near future hospital purchase of medical equipment.

UBS is expected in the next few years the medical equipment industry will grow by 20% to 25%, higher than the UBS forecast pharmaceutical industry growth of 15% to 20%.

Due to the expansion of Medicare reform, UBS expected public medical insurance will be in 2020 onwards practiced, and seeking ways to improve is expected to stimulate consumption and demand for healthcare.

UBS expects the demand for medical equipment will increase accordingly.

Based on past experience as a guide, UBS thinks 2,900 billion yuan of one third, i.e. nearly 1,000 billion yuan may be used for the base level of hospital (county hospitals, rural health centres and town community health centres) medical equipment procurement (the remaining two thirds are used for construction).

In the ideal case envisaged UBS, UBS is expected to total government expenditure for new 8,500 billion RMB.

However, UBS thinks assumptions which 60% is used to add new investment is reasonable. Therefore, UBS is expected for 2009-2011 the Government medical equipment purchase amount will increase 600 to 1,000 billion yuan. In the basic case envisaged by UBS, the new investment of 600 million Yuan, UBS expected medical equipment industry in 2009-2011 will be 20% growth per year, ideal case scenarios for the growth of 25% per year.

3. local enterprises are the main beneficiaries of the

UBS pointed out that the local enterprise are the main beneficiaries.

The line that most of the medical device manufacturers will benefit from health insurance expansion and go to the hospital. However local focus in the low-end market enterprises will also cost advantages and extra because they benefit from government procurement plan for three years.

UBS expects small equipment manufacturers will be the first beneficiaries, once the device configuration upgrades and a corresponding increase in the number of hospital for medical treatment, after the beneficiaries for consumables and reagents manufacturer.

According to the different level hospital instruments lower standards, UBS is expected to purchase major medical device type is patient monitors, x-ray equipment and ultrasound equipment.

UBS believes that government procurement based on the principle of the level of medical equipment is bottom, from rural health centres to the County Hospital, and then to the provincial hospital.

UBS believes that the end of 2008 the amount of government procurement has already begun to increase, and in the first quarter of 2009 has grown significantly. UBS expects the second half of 2009 will have more growth, and procurement will gradually shift from care centre County Hospital.

Medical technology innovation: Europe and Asia have the opportunity to lead

Current Imaging is a global medical technology market share of the largest areas; the MedTech 2020 report pointed out that Asian countries would transcend the technical areas in Europe and won the leadership position.

But in any case, the medical technology will continue to lead innovation, one of the most active is long-distance medical (telemedicine) technologies; in this context, the European leader in North America, the Asian States is hot pursuit.

As the field of continuing care, will hasten the digitization of other innovative technologies and new applications, such as regenerative medicine (regenerative medicine), corrections and plastic technology (prosthetics) as well as active implantable devices (active implants) and so on.

As regards including lab on a chip (lab-on-a-chip), in vitro diagnosis (in-vitro diagnostics) technology, the United States will lag behind the European, Asia has made progress in space. Other areas with growth potential, including minimally invasive surgery and endoscopy equipment.

Medical innovation power in the field of science and technology, many of which computer technology is clearly the most important role to play; information and communication technology, microelectronics and materials science, optical technology and the importance of secondary.

Germany Center for cancer research (German cancer research center, DKFZ) in medical physics department supervisor Wolfgang Schlegel intended, these medical technology innovation will further breakdown of the medical industry value chain.

For example, a computer simulation of the treatment, planning and optimization, will be between diagnostic and treatment procedures to create additional links; so the treatment will be minimally invasive surgery of innovation, as well as the Proton, heavy ion radiation and other new radiotherapy and improved.

In addition distance medical technology will significantly expand the industrial value chain.

Treasures of domestic cutting-edge equipment in hospitals than ten seconds to complete body check (1)

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Advanced medical instrument not only represent today's treatment of the technical level and can also help physicians better diagnosis and treatment. Today large Beijing hospitals are competing to bring in a variety of advanced equipment to create their own hard forces. Advanced medical equipment is resolved inspection of the "diamond", "with the help of advanced instruments, previously not good to do, do not dare to do and not do surgery now can be realized. "Beijing hospital neurosurgery director Wang Ming.

According to the medical device industry, "" eleventh five-year development plan ", by 2010, China medical device output value will reach more than 1000 billion, Japan has become the world's second largest medical device market.

But for patients who choose to participate in more advanced medical equipment, medical programmes to treat process less painful, less invasive, it also stands for the high-tech pay medical expenses.

Brain function area positioning check epilepsy, a more precise focus positioning

Weapon: magnetoencephalography location: Xuanwu hospital

First to Xuanwu hospital patients, if nobody pointing I'm afraid it is very difficult to find magnetoencephalography room location.

In order to make the instrument is not affected by electromagnetic interference, magnetoencephalography rooms located in a corner of the hospital, magnetoencephalography room screened room. Patients in the examination, according to the doctor ordered for a range of preparations, such as checking the previous day to wash my hair, check cannot wear jewelry, etc.

Instrument consists of a Chair, a pusher and the upper part of the huge checks the device.

Check the patient sitting in bed, check the device to the patient's position. Check the time for an hour, during which the doctor will do some induced experiment. A simple movement, feeling of irritation, and listen to the sounds and see the checkerboard. The patient simply follow the doctor's advice to complete these experiments, magnetoencephalography you can find the corresponding function in the brain. The entire inspection harmless to the human body, nor does it have a special feeling of discomfort. Magnetoencephalography like a quiet observer, faithfully records at any one of the brain of patients with minor changes to electromagnetic.

Advantages compare

Non-invasive, on early epileptic foci of more accurate

Xuanwu hospital magnetoencephalography unit's Sun Wei said, magnetoencephalography currently mainly used for epilepsy foci of positioning and preoperative assessment.

The traditional method is through EEG with nuclear magnetic and placement of intracranial electrodes, and the method for locating, magnetoencephalography as human non-invasive brain function examination of new technologies that can significantly improve the positioning accuracy of epileptic foci.

Meg and EEG, brain wave attenuation, when radiation from the skull is probably decay into nothing.

By Meg does not decay, magnetoencephalography Meg through records and EEG changes, determine the side don't epileptic foci and location.

Before another checking method is electrohippocampogram, trauma, cranial placement of intracranial electrodes, and intracranial electrodes expensive.

Of course, magnetoencephalography also has limitations, because the machines are expensive, it is not possible to open too long time to record the brain during magnetic phenomena. Only through the interval of the phenomenon of the brain. Magnetoencephalography and nuclear magnetic resonance, if patients wear metal objects, do nuclear magnetic may hurt, but MEG does.

Magnetoencephalography may also apply to other brain surgery before the positioning of the Ribbon.

The focus in the vicinity of feeling, hearing, Visual, and brain function area for accurate positioning, and help to determine the operation plan, preserve brain function area, reducing complications, shorter hospital stay.

3D remote consultation zero input gain expert zero distance diagnosis

Detection area

Weapon: medical image remote service system location: PLA second artillery corps General Hospital

In yushu earthquake, the 28-year-old Tibetan mother Europe-first vertebrae, paralyzed, his life is in danger.

Dozens of medical experts as Beijing, through the second artillery corps General Hospital in earthquake relief teams set up in front of the hospital's medical imaging remote service system for remote consultation, real-time guidance surgery so that Europe-of burst fracture reduction and good.

The second artillery corps General Hospital and Director of the medical imaging remote service, the whole Army Medical Center, Director of the Office of the dynamic management of HKSAR said April 17 that earthquake relief teams carry 6 sets of medical remote service terminal, in Xining five garrison hospital after installation and commissioning, completed in Beijing 57 there his district's life rescue.

HKSAR said: "this system platform through 3D network, is somewhat similar to email.

We have a Terminal, the local hospital implantation system, with image data import system, the system automatically analyzes and form measurements to construct and stereo mode, is actually a diagnostic workstation, real time transmission to Beijing's database, we have a dedicated triage, audit staff, the first time and local hospital triage process of communication, the entire 1 seconds to complete. Experts will receive the system automatically send SMS, open at any time, and for consultation, operation, and in CT, MRI machine at the front of the computer. Experts fill their feedback to the Center, the Center for audit, not late, and the wrong point error, and then to place the entire process can be completed in 10 minutes. "Since January of this year, the second artillery corps General Hospital has completed more than 2000 cases and consultation, but this is far from system capacity limit, the system 1-day consultation of up to 1000 cases.

Advantages compare

Expert consultation time location and number of more flexible

HKSAR, expert inquiry mode can be one-to-one, one-to-many, many to many, you can schedule consultation anytime, anywhere.

Also available through expert system implantation to ensure at any time of the phone. "We let the remote areas of the hospital without input any equipment on the basis of cost, free of charge to their installation we and Tsinghua University cooperative research and development of the system, with a local expert to get Beijing zero distance diagnosis and treatment. But for now we are limited to the image parts service, expert remote consultation is free of charge. ”

In the face of disaster, etc.

Public emergencies, such as earthquake will destroy the base station, but does not destroy the satellite transmission through GPRS. It is noted that the General Office of the Ministry of health of the dynamic health plan at the end of this year, the army's professional experts into the platform, there will be more than 500 top experts at 5000 + medical professionals for remote diagnosis and treatment.

Non-invasive check 10 minutes to complete heart check

Weapon: double probe variable angle ECT place: the first affiliated hospital of Tsinghua University

Programmable analog array and EMG signal acquisition and application of

Introduction

In biological signal acquisition, signal amplitude as a result of the measured object, different kinds of biological potential of the spectrum, the different muscle groups as well as skin electrodes coupling, and other factors vary, so typically you need depending on the measured object adjustment analog front-end amplifiers magnification and bandwidth.

Implementation of such regulation of one possible option is to use programmable analog array (FPAA), through the use of programmable analog array implements a RMS-DC converters or to zoom in on EMG (electromyography) signal digital and microprocessor processing RMS values. FPAA let all analog circuit required in a programmable component implementation, it ensures greater flexibility and reliability of the system, and reduce the size of the circuit and reduce costs.

The EMG signal processing, a front-end using analog circuit complete benefits is that the EMG signal collection rates range from 10 μ v to 1 mV, these signals need to zoom to 60-100dB, therefore, the use of a high common-mode rejection ratio (CMRR) integrated instrumentation amplifier can minimize the impact of common mode interference.

Filter level using analog circuit, when the band frequency needs further decay time, usually the second or fourth-order low-pass and high pass filter.

This article describes the use of EMG signals Anadigm FPAA on for collection and disposal of circuit design, the analog signal processing project purpose is to obtain from EMG signal sufficient biological characteristics, to control such as artificial limbs or electric Stimulator for external devices.

Characteristics of FPAA

As programmable gate array (FPGA) is a digital circuit design change, FPAA to analog circuit design introduces a convenient prototyping methods and reducing design time.

In FPAA most important unit is configurable analog modules (CAB), which subtly to deal with a variety of signals and the routed network. FPAA is a can be programming and again programming integrated circuit, analog circuit function can perform routing-end adjustments. Circuit configuration files from the PC, system controller or incidental EEPROM download-FPAA, resulting in functional integrity of the circuit. The circuit configuration variable at any time, for a completed feature configuration can be changed in the new download or real-time upgrade to reconfigure.

Based on a switched-capacitor technology by Anadigm AN221E04 FPAA have configurable properties of a number of CAB, and can be programmed to perform different functions, such as filter, amplifier, multiplier, comparator, and other features.

These features can be used in a biological signal acquisition and processing. In addition, FPAA interrupted the CMRR amplifier is 102dB, thus bringing the common mode interference signal and power cables jamming 60Hz.

Circuit description

Circuit realization use AnadigmDesigner 2 software, which includes circuit simulator and a programmable devices, use the AN220D04 evaluation board serial interface on the work test.

Battery evaluation board using optical interface is connected to a computer to ensure patient safety.

The system of the block diagram shown in Figure 1.

Figure 1 for EMG signal acquisition and processing system block diagram

For EMG signal acquisition

Through the acquisition of the surface electrode EMG signal amplitude in 10 μ v to 1 mV range, however, the common mode signal (interference) may be as high as a few volts.

Researchers had previously recommended several technologies to FPAA and other analog circuit interface, however, they are not suitable for biological potential of the acquisition, therefore, researchers presented a new configuration, where the reference electrodes are connected to the reference pin FPAA (VMRR), while the active electrode is directly connected to the intermittent input.

Intermittent amplifier is used to zoom in with the DC component, very small and very low frequency signal, the signal from amplifier bias.

For EMG, 10Hz following it has negligible, however, it is provided by FPAA analog front-end options provide better acquisition results.

The source of interference is minimized through the use of masking technique, use a shorter cable, prevent ground loops, in electrode area ready to be logging the skin as well as using Paste Ag-AgCl electrode.

These measures allow for the acquisition of sufficient signal to noise ratio, the simulation domain for continuous signal processing.

Analog signal filtering

EMG signal bandwidth is defined as from 50 Hz to 350 Hz.

As a design option, you can use the low order filter configured to signal to noise ratio in enough to capture the EMG signal. This is the use of a second order Chebyshev band-pass filter and a bilinear filters, therefore, the low-frequency attenuation for every ten octaves higher than 20dB, on frequency attenuation of bandwidth every ten octaves 40dB.

Input level use is configured to have 64 intermittent amplifier gain.

The first filter level is the center frequency to 200Hz, 5 gain bandwidth 300Hz of band-pass filter; the second level is a cutoff frequency for 500Hz, gain 20 low-pass filter. Signal conditioning circuits total gain to 6400 (76dB). All parameters can be reconfigured at any time.

Acquisition of transfer functions such as circuit equations 1 and 2, they represent the intermittent input level, biquadratic bandpass filter, lowpass filters with double linear transfer function.

Of these, GChop

Per is intermittent amplifier gain; GBP is a bandpass filter's gain; GLP is a low-pass filter gain; fBP is band-pass filter frequency; the center of the fLP is a low-pass filter cutoff frequency; Q is a bandpass filter quality factor.

As shown in Figure 2 as Equation 1 frequency response, the drawing is to use the signal generator (HP 33120A) access, and in 2 software AnadigmDesigner simulation drawn from Matlab.

Visible from the figure, the theory and experimental results similar to the difference between the derived from experimental error or FPAA circuit of tolerance. The simulation also demonstrated FPAA development tools is reliable.

Figure 2 frequency response map: solid as Matlab simulation results; (□) cable to the simulation and experimental AnadigmDesigner 2 results

RMS value of

RMS value of certainty is done using classic topology.

Multiplication and square root extraction is the use of the CAB FPAA. Outside of a RC was used as a first order filter, is directly connected to the FPAA difference output and once again injected into the same FPAA, as shown in Figure 3.

Figure 3 using analog circuit produces RMS value of classic topology

Use from volunteers of the biceps acquisition of EMG signals as well as using Paste Ag-AgCl electrode so that with low ripple RMS signal, at the same time, ensure that the response time of the circuit, as shown in Figure 4.

RC in the experiment can be regulated, the final value is R = 220 k and C = 470 nF, defined cutoff frequency for 1.5Hz.

Figure 4 RMS value (Channel 2: 500 mV/div) and the biceps signal (Channel 1: 1 V/div)

Analog signal processing last level by trigger pulses in comparators circuit or – when the EMG RMS level adjusted set point threshold — to control external devices switch control circuit.

FPAA circuit has a variable reference the comparer to perform this function, and the reference voltage as sensitivity thresholds.

Complete electric circuit as shown in Figure 5.

In Figure 5 on the top right corner of the output 3 and 4 correspond to the amplifier and filter the square of EMG signals, while the lower-right corner of the output 7 and 8 corresponds to the analog signal processing after EMG signal RMS.

Figure 5 is used to capture the complete EMG signal FPAA circuit

FPAA circuit (AN221E04) high common-mode rejection ratio allows for high common-mode noise suppression capabilities for very small amounts of biological EMF (10 μ μ v to 500 V) acquisition.

Next, by using interference minimization techniques produce low-noise signal, the signal can be enough quality to be used as a prosthetics or electrical stimulation for the control signal.

The above examples, programmable analog array has the flexibility to modify the characteristics of analog circuits, such as the use of software to modify the filter cutoff frequency, gain, reference voltage and can be modified during the work of the circuit, therefore, FPAA will help quickly and reliably achieve medical electronic systems design analog front-end prototype.

Programmability of the development trend

Large-scale field-programmable analog array (FPAA) in simulation area has great potential for development.

Industry experts said that the benefits of FPAA is: 1. Simulation of pretreatment can alleviate A/D converter existing bottlenecks and reduce DSP operations after the level of burden; 2. FPAA has significant potential to reduce small analog circuit design prototype creation time, to meet the requirements of large arrays, which can be one of the most comprehensive instrument simulation applications or even provide adequate performance; 3. Compared with the DSP programmes, the main advantage of FPAA is the entire power consumption than FPAA single ADC module also low; 4. compared with the full custom ASIC's main advantage is the flexibility and faster design, development and deployment cycle.

However, this technique also need FPAA continue to solve many problems.

For example, due to the alignment and switch increases the noise limits the analog circuit performance, and reduce the signal to noise ratio. However, industry experts think, FPAA technology over time and become more mature, and hopefully bring a simulation design revolution. At present, companies such as Anadigm and Lattice programmable analog array is available.

In addition, TI and linglier principal companies based on a spreadsheet of filter design program.

Currently, the available online analog filter design program with the United States national power filter design tools (Active Filter Designer), with the help of this tool is a convenient way for Bezier, Bart, Chebyshev or Gaussian filter properties to select high-pass or low pass filter parameters, these programmable analog application design tool, but also will provide medical electronic systems design of analog front end provides greater flexibility.

Reference documents:

1. the programmability in small signal measurement systems, electronic products, http://www.eepw.com.cn/article/85904.htm

2. http://www.anadigm.com/

3. programmable system-core

The design of a framework for the electronic design technology, EDN article.ednchina.com/EDA/20061203110239.htm

4.

FPAA chip AN10E40 and its applications, worry-free electronic development network, www.51kaifa.com/html/jswz/200512/read-4138.htm

Portable insulin pump system design strategies (1)

Insulin pump is a portable medical equipment, in the United States, its design and manufacture of the United States food and Drug Administration (FDA) of the regulation.

This means: its design and construction must follow the exact requirements of the process; its performance must meet strict document management, development, testing, production, testing and onsite maintenance requirements. As shown in Figure 1, you must also include comprehensive self test and fault display function, and thus require additional circuits as well as the use of a self-inspection function of the device.

Portability

Insulin pump is worn by the device, therefore, must be very small and light (Figure 2).

Its volume is usually about 2 × 3 × 0.75 (5.7 × 7.6 × 1.9 cm), weight of 2 and 4 ounces (57 g and 113 grams). The overall requirements designers, in the select a device, it will give priority to their size and power consumption.

Figure 1: functional block diagram for insulin pump system; Maxim provides the blue part of the solution.

To save space, the system designers need highly integrated programmes and a very small package, such as: chip scale package (such as us-letter UCSP package) and wafer level packaging (WLP).

In order to make the battery size as small as possible, the designers need to minimize energy consumption and increase efficiency. If possible, turn off those at any given time without the use of the circuit, then to the power supply.

The system's core is a highly integrated low standby power consumption microcontrollers — such as us-letter MAXQ2010, or other similar micro-controller manufacturer.

16-bit microcontrollers MAXQ2010, when working in 1MHz and 2.7V, power consumption of only 1mA, stop mode power consumption of only 370nA. This low-power characteristics on the extension of the insulin pump work life inside the battery is crucial. As with most micro-controller, USART, MAX2010 including timer, 64kB Flash-based program memory, some common i/o 2kBRAM, lead, with a reference voltage of 312.5k sample/sec 12-bit successive approximation ADC, 160 segment LCD controller and other resources. It can also be quickly from sleep and wake up, stop mode so that insulin pump can provide better, faster service user needs.

Figure 2: typical battery-insulin pump.

ISuppli: Chinese medical electronics industry is extremely robust growth

Government incentives to promote the industry in 2013 continues expansion

According to iSuppli Corporation, the Chinese Government's massive investment in the healthcare industry, from 2009 to 2013 for the medical electronics equipment sales grow strongly.

2009 China medical electronics sales will increase 18.2% from 33 billion in 2008 increased to 39 billion.

The next few years will maintain this momentum, the compound annual growth rate will reach 21% 2013 rising to 86 million.

China April release of the health system reform to Central and local Government to the medical industry investment 8500 billion (approximately US $ 1241).

According to China's Ministry of finance, including about 818 million will be used to expand the social health insurance, the remaining 423 billion will be used to subsidize the hospital reform.

Social health insurance coverage, as well as diagnosis and treatment of conditions improve, it is expected that the demand for medical services will increase.

This will lead to Government medical equipment procurement for sustained growth, used equipment junior hospital.

UBS (UBS) investment sector estimates that one-third of the hospital benefits, equivalent to 141 million, will be used for junior hospital purchase of new medical equipment.

Even if the implementation of this policy, this lag 141 billion will promote the medical device industry 20% growth per year. It can be expected in the next three years in the medical electronics market annual growth rate of more than 25%.

In addition, for the medical electronics industry innovative research and development activities of 4 billion yuan (about 5839 billion) investment in China's economic stimulus plan.

In 2008, in China's overall medical electronics market, including ultrasound, magnetic resonance imaging (MRI), x-ray and CT systems, imaging devices around 8.61 billion, accounting for 26.1%, is the largest single share.

Consumer medical electronic devices, mainly blood and other portable devices, there are many medical electronic equipment manufacturers of business focus.

In 2008, the operating income of $ 1.54 billion. Patient monitor sales will in the coming year remain strong growth in 2008-2013 of the compound annual growth rate will reach 18.5%.

Due to the technology and the investment threshold is high, complex high-end medical electronic systems consist of a large international manufacturers in occupies.

China's domestic medical electronics industry from small start-up companies, must be committed to outsourcing services, or you must be its international counterparts to narrow and Lite. The following dynamic strengthened the trend: the market focus is shifted from the big city and the third line of the second line, these areas to cities afford a middle medical electronic devices.

This dynamic in turn stimulate the portable electronic medical equipment sales.

Due to the portable device focused on individual customers and small medical institutions, function and accuracy requirements are lower, but need more flexibility. Therefore, these portable devices of small dimensions, low weight and low power consumption make it very popular.

Mobile phone-medical device research and development of the "new" sound capture one (1)

Today, the people of developing countries have a cell phone has become commonplace.

Third generation mobile (3 g mobile phone) unveiled the phone this convenient communications tool transformed into a multifunctional machines, including some computer functions, such as 3 g mobile phone with wireless Internet access, access to information; TV features, such as watching TV news, sports play-by-play, movies, MP3 functionality such as listen to all kinds of music programmes etc. In addition, some medical device manufacturers are actively developing mobile-medical devices.

You can use as a laboratory machine for cell phone

Sony-Ericsson company is developing a mobile portable medical laboratory machine.

It is like a small hospital laboratory. Just take the patient a drop of blood, saliva or urine sample, drops, such as the phone back cover within the chip, a short time can be measured in patients with CD4 cell count, T lymphocyte counts, so as to determine whether the patient is HIV (HIV) infection.

It is reported that the phone uses the super wide angle lens-free cell detection order platform technology (LUCAS), its use of Ultrashort Blu-ray irradiated samples (such as blood, saliva samples) to make cell count interpretation.

Phone with a computer chip, in a very short time to get test results. This mobile phone-type testing machine can be used to detect such as malaria (judging by RBC readings), AIDS (by CD4 cells, T lymphocyte readings and other testing results judging) and women pregnancy and many other uses.

Sony-Ericsson technology officer said, as long as the increase in the cost of $ 50 will be a regular mobile phone for type testing machine.

This new mobile phone on rural doctors and the majority of patients have a strong practical use value.

May at any time to monitor heart mobile phone

United States many thousands of patients with coronary heart disease, coronary heart disease patients most afraid of is a stay at home when sudden cardiac infarction, because there is no help and delayed medical treatment.

To resolve this issue, the United States horse Wurzburg University medical device development centre of scientific and technological personnel think cell phones. They are ordinary mobile phone with an electronic device of Riga, the mobile phone named as "smart phone" (Smart Cell Phone). Will this modified cell phone on my chest, in patients with coronary heart disease is readily monitor patient's heartbeat. Once the heartbeat signal exception occurred is mobile monitoring to proactively set in the phone's alarm will emit a beep signal, so the first time informed the community hospital doctor, the medical personnel arrive home for emergency patients. This mobile phone has been in the United States market, and has promoted the use in California. The results showed that the purchase and use of smart phones, mortality in patients with coronary heart disease decreased by 60 percent.

Smart phone market is very welcome in patients with coronary heart disease.

Affected by this encouraged by United States horse Wurzburg University researchers are developing a second-generation direct transfer of new mobile diagnostic images. According to the researchers, the University is developing a new cell phone through conductors and b-machine-phase connection and which image is sent to the distant Medical Center. Medical Center of experts in on cell phone send to image interpretation after diagnosis of the disease situation and feedback to local doctors. It can transport Diagnostics new mobile future images will have broad market prospects.

Cell phone make up diagnostic instruments

According to the World Health Organization published a report on the global about 75 per cent of those who have never trained x-ray, ultrasound, CT, MRI, PET and other modern electronic diagnostic equipment checks.

Many developing countries people as not done x-ray, even got tuberculosis is unknown until the symptoms get worse before they get medical treatment. On the other hand, some developing countries hospital in purchasing these electronic diagnostic equipment took big price when, in order to recover the costs and fees for the diagnosis of references to very high, which in turn affects low income patients do equipment diagnosis.

Technical standard for the front line medical information market pave the way for today

"If the cart is also in front of the horse, the horse can walk poodle?" in 2005, the United States healthcare information and management society (HIMSS) is China's medical information.

However, 5 years later, China medical information is better than before. Chinese Hospital Association information management Committee (CHIMA) Chairman will Martin Leung pointed out: "currently Chinese medical information rendering rapid development, both for domestic and foreign manufacturers or medical institution concerned is a rare opportunity. ”

Technical standards to pave the way forward

Expo with HIMSS seminars and training sessions organised by the Chinese medical information development of the main topics.

Deputy Minister of health at the meeting that the yinli Ministry of health is planning to develop Chinese medical information development of relevant standards, has formulated the basic structure of inhabitants of health records and data standards, hospital electronic case basic framework and data standards, and a series of health information standards, procedures and management methods, which work as medical institutions and health managers to share health information between resources laid the Foundation.

At the same time, the Ministry of health also speed up the construction of the national health information, including research and development of the next five-year health information development planning, participation in major national health information project, strengthen underlying health informatization pilot, etc.

In the seminar, Lee covers listed the Obama administration in medical information of some measures he considers these measures are worth learning from China.

In the United States, there is a set of standards for all medical information of products certified for compliance with the standards of the products before they can enter the market, and the hospital uses a standards-compliant products to get government funding; in addition, hospitals must also implement medical information product "effective application", the Government on the application of the "effective" measure taken 23 standard, only meet the criteria of article 23 of the Government will be another part of the financial subsidies to the hospital.

From the entire process, standards, certification, inspection finds that the effective use of these links is closely linked to the Government.

In addition, the establishment of uniform technical standards to ensure the effectiveness of medical information, especially in the discussions.

Uniform technical standards is to promote the efficient operation of the Foundation. The industry that, faced with numerous information systems of complex data, the difficulty of establishing uniform standards lies in how to implement the interchange between different systems.

Spent on it, not the hospital initiative

And other countries compared to the same scale of hospital, China hospital in the area of medical information is still at the embryonic stage.

However, although it cannot be compared with developed countries, but the Chinese medical information starting point but not lower than developed countries.

These results show that at present in China 1000 level III hospital, computers equipped with ratios in the world is not a very backward.

Moreover, more than 90% of the County and county hospitals have established a registration fee, pharmaceutical equipment, medical management, and other content of the hospital management information system; 1/3 or more hospital has established a patient-centered, electronic case for the integration of information systems.

Chinese Hospital Association information Commission investigation revealed that at the tertiary hospital, application testing fee system, drug management system and registration system of the proportion reached 93%, 91% and 84%; application of hospitalization workstation system and hospital workstation system ratio reached 80% and 63%; over the past three years, half of the tertiary hospital Informationization construction investment exceeds 100 million.

Multiple data show Chinese medical informatization progress quickly and clearly, the effort is significant.

With this procedure inadequate investment promotion, and also became a problem.

The Ministry of health information technology expert group expert Professor Lee holds them pointed out that China's Hospital should have annual revenue of 10% to 20% and get back to your medical information to first-tier cities to plan, annual revenue reaches $ 2 billion in three hospitals, at least to invest $ 20 million for information.

The current Chinese medical informatization also relies primarily on hospitals and Government support is not enough.

To do this, engage in medical information in an enterprise that medical information of the current major dilemma lies in the small and large output, input of medical institutions have yet to see the information of the necessity and benefits, therefore, to mobilize the enthusiasm of the hospital to become critical.

In the foreign-funded enterprises, China medical information market although not to the blooming season, but its potential is considerable demand.

It is reported, Microsoft, Dell, IBM, Philips, ESRI, and other multinational companies have been aimed at the China medical information fields, rolling up arrangement for Chinese market.

Family-oriented remote health monitoring medical system design

1 introduction of telemedicine care refers to the remote network through communication of physiological and medical signal transmission to the monitoring Center for analysis, and gives diagnosis views of a technical means.

He is with the computer technology, the development of modern communication technologies and development. Computer technology and the development of modern communications for remote medical services both new opportunities and makes it available through the application of computer technology and modern communication and achieve personal and hospital, the hospital and the Hospital of medical information of remote transmission and monitoring, remote consultation, medical first aid, remote medical education and communication, etc. With family-oriented remote medical health surveillance is equipped with advanced appropriate medical equipment conditions, millions of households and health care institutions, medical patients into the family, at home in the implementation of monitoring, diagnosis, treatment, rehabilitation and health all-in a new telemedicine mode. Remote patient monitoring has become increasingly a matter of great concern. Its rapid development has a strong background of social reality:

(1) as the environment pollution intensifies, people, lifestyle changes, work pressure, threats to human health disorders also appeared in the new situation.

Malignant diseases and chronic diseases such as cardiovascular disease, cerebrovascular disease and malignant neoplastic has become a threat to human health, the number one killer.

(2) along with the improvement of living standards, health conditions improve, increasing human life extension, ageing trend is clear.

(3) the development of modern communication technology, especially in mobile communication technology and Internet technology is developing rapidly as a remote monitoring provides strong technical support.

This new telemedicine model is a very important technology, and has many advantages.

First he greatly facilitates the majority of patients, especially some special populations, such as: mobility handicapped patients and patients suffering from chronic elderly need to periodically check for pregnant women and children, need to review the long term illness patients with chronic diseases (e.g. diabetes, heart disease), away from the hospital transportation of patients. Secondly this new telemedicine model also effectively reduces the workload of the hospital, outpatient department can concentrate on critical intensive and difficult diseases, effectively configure and use limited medical resources, as the pace of life in urban tension of time providing a family health care anywhere, anytime. People carry wireless sensing devices can move freely, in a familiar environment time monitoring their physiological parameters without having to go to the hospital. He not only to secondary treatment, the patients ' condition suddenly deteriorated to the police. Medical staff can remotely monitor Center observation of the patient's health status and provide real-time diagnosis and recommendations, or long-term care to patients. On the other hand, to the remote monitoring healthy population, can also be found on the early symptoms of disease, so as to achieve health and prevent disease.

This design is a new network-monitoring devices and systems, based on wireless sensor network technology, the sensor acquisition parameters of human health.

These analog signal processing circuits through front to enter the digital signal microcontroller, through wireless data transmission and computer universal serial bus interface into the PC, the Internet is sent to the remote monitoring Center for professional medical staff provides a variety of important changes in physiological parameters. And then by its statistical observation data, provide the necessary consulting services, implementation of telemedicine. Aim is to use high-frequency wireless multi-channel data transmission, transmission of medical sensor and monitoring and control instruments for information between the monitoring equipment, reduce and medical sensor, allows the guardian to have more free space.

2 system structure

Family-oriented remote health monitoring medical system is mainly composed by 2: remote sensing system for medical equipment and communications delivery system.

Remote sensing system of medical devices is collecting information on the user's physical state, as networked home appliances for physiological monitoring, physical therapy, remote monitoring system must be stable, reliable, a certain post function, simple operation. From the patient's safety perspective, the use of proven, reliable technology, and as far as possible and ready-to-system compatibility and sharing data and, if required, be extended. And communication technologies for the implementation of telemedicine to provide strong technical support, depending on the application of telemedicine in the transfer of information and real-time performance requirements, you can use instead of communication technology. This article was previously published under family-oriented health care system, a wireless sensor network data transfer to a variety of monitoring devices and computers and remote trunk communication network of the primary connection method. And cable transmission compared to his advantage is:

(1) has sufficient speed to meet the transfer of data between devices;

(2) have a very good scalability and system equipment to increase or decrease will not affect other equipment in use;

(3) has a good adaptability, portability and mobility that are not subject to the constraints of physical environment.

This article is designed for monitoring system by monitoring base station and sensor nodes form a miniature monitoring network; sensor node on the consumer's life indicators data acquisition via wireless communication method to send data to the monitoring station, and from the base station transmit data to the connected PC through the Internet network can transfer data to the remote medical care center, by professional medical personnel statistical observation data, provide the necessary consulting services, implementation of telemedicine.

Users also can pass personal data to the PC for the acquisition of a preliminary analysis, and through computer given a preliminary judgment to take emergency measures.

Medical biological sensor nodes can set different needs, so the system has the flexibility and extensibility. At the same time, the system received Internet network, to form larger community health care network, hospital networks and the whole city and the nation's health care network. Figure 1-oriented system map.

3 monitoring sensor nodes and the monitoring base station design

P > sensor node used for measuring physiological parameters, data via wireless sensor network routing to the base station. The network of the required sensor nodes can be expanded as required. Figure 2 is a sensor node block diagram for node sortable by sensors, signal conditioning circuits, processors, wireless communications module has four main parts. Which wireless communication module is the key to achieving wireless monitor.

Base station unit can capture and display the test data, and to make the exception to the police.

If necessary, data will automatically be sent to the remote monitoring center, seek medical advice and help. Therefore the system of monitoring base station equipment is designed as a portable device, while monitoring base station equipment and systems for multiple sensor node to communicate with complete data acquisition and display functions. In the course of using, monitoring base station equipment through wireless channel to sensor node sends control command to start sensor nodes, sensor node receives a command after the corresponding data collection actions collecting human physiological indicators after the end of the collection of data through wireless communication by returning the data to the monitoring station, by monitoring base station for further display, storage, and so on. The base station's main components include user interface module, wireless communications module, alarm module and data transmission module. And remote monitoring center of communication can depending on your application needs, choose the network construction. Figure 3 diagram of the base station.

Wireless communication module mainly completed and sensor data interaction between nodes.

Base station through the serial port, USB and network adapter to access the local computer, and then transferred via the Internet to the remote monitoring center. Monitoring base station equipment in normal working state use the battery to supply power, therefore during the design process with particular attention to the low-power management and control. At the moment is not working, the system enters the low power consumption and hibernation to save energy.

4 user self-diagnostics system design

In this system, the PC is not only a responsibility for the network server and client login and doctor in real time communication tool.

He also serves as a very important task, namely to provide a custom diagnostic information to the database and to achieve self diagnosis function.

Diagnostic system's main function is to put the sensor acquisition to body temperature, pulse, blood pressure, and other data sent to the hospital data before a preliminary analysis.

In the end a set of signal processing analysis and calculated corresponding human information data, data on the human judgement whether data is sent out, and user-end diagnostic software also provides a similar role with expert system for diagnosis of white, available to the user reference. Figure 4 is a self-diagnostic system flowchart.

5 conclusion

Remote monitoring using sensor technology and modern communications technology to the patient's care from hospital to communication network reachable anywhere, enabling patients and clinics, clinics and hospitals or medical information transfer between.

Remote monitoring provides a way to be custodians of physiological parameters for continuous monitoring of remote object physiological functions of method, he shortened the doctor and the distance between the patients, doctors can these distant from the physiological information for patients and provide timely medical services, tele-monitoring system can not only improve the quality of life of elderly people, and able to capture the elderly onset aura, combined with important physiological parameters for remote monitoring, you can increase the level of home care in the elderly. This is access to a high standard of medical services and emergency first aid support. Remote monitoring system which conforms to the information society development and people's health care needs of the production and development. As information technology continues to develop, the form will be more diverse, wireless, mobile and sensor technology integration and miniaturization wireless smart sensor network is bound to a remote monitoring system development brings new breakthroughs.