China healthcare industry information technology market trends

From the investment structure, it is expected that the next five years, the proportion of IT hardware investment will further decline, software and services of the investment proportion will be increased each year.

The next five years, China medical information market development trends will appear as follows:

1, more companies join the medical professions IT market competition.

Panoramic view of the China medical information market, starting from 1993 till now, has undergone three phases of development. The first stage is a large number of doing HIS independent software vendor (ISV) flocked there; the second stage is in a price war and immature market, a large ISV out; in the third stage is the involvement of foreign companies.

Future China healthcare industry IT market growth, will be more vendor attention.

International manufacturers, in addition to Intel to digital medical single out, as with digital enterprise, mobile market-by-side of the market, such as IBM, Oracle, Cisco, have set up a professional medical industry sector.

But there are also domestic manufacturers saw this huge market, is founder of intervention, such as the acquisition in the medical industry programmes in five major ISV zbon arranged.

Most notable is the entry of foreign companies, they will undoubtedly make medical information market competition become more well underway.

2, IT gradually expanding the scope of application, more emerging application enters the eye.

HIS unified pattern will be broken, it is broken. Further to the PACS (medical imaging information system) and rapid development, USIS (ultrasound information system), PIS (Pathology information system), CMS (cost accounting system), PEIS (medical information system), also in development, future in electronic medical records, community health and greater health management, also promotes more application.

In the application, will continue to be one of the three steps of the process.

A first step, the billing system and clinical systems; the second step, electronic medical records, structured system, and more conducive to the query; the third step, the workflow engine, master parts development, SOA architecture, more flexible, you can redesign process.

3, medical products and integration at the same time IT got people's attention.

In many medical industry ISV integration products and services, it seems, is to solve the original market low profit margin in the best way is relatively consistent with the Chinese people's habits. While medical information related services are not the main source of profit, but a growing number of ISV start services, do the market do fine.

4, competitive pressure will lead to medical industry information products and services provider enterprise integration between.

Domestic early coming out of the ISV business, survived largely through the introduction of strategic investment to grow bigger, more chances of survival and development. They grow up ISV next is bound through the acquisition of consolidated regional small ISV, get more customers, improve product line, multiplier, to respond to domestic and foreign manufacturers of competition.

5. integration of industrial chain forward consolidation will become mainstream in the future.

For most major ISV, technology is becoming more and more become the threshold of its development, and integration of applications will become the focus of the future competition. Through cooperation with advanced manufacturers, in its platform development, will help domestic manufacturers station to global medical information technology applications. Integration of industry chain, consolidated medical resources, IT will be the application of medical information.

6, as the market matures, the user needs more more rational.

If the medical industry users of it purchase into your rendezvous, impression, rationalization of three, then after several years of application development, and related processes and the application will become the core of the user concerned. And since users on business process and application of more and more, the user needs more tends to rational.

7. medical information technology outsourcing, integration across enterprise IT resources.

From foreign advanced development experience, medical IT systems outsourcing has been a degree of application, but the domestic market also entered the warm-up period. Medical IT outsourcing, to some extent may promote IT resources faster application integration, and promote IT. For example, in order to implement remote medical system, Government, hospitals, research institutions, telecommunications infrastructure operators and large scale IT outsourcing service providers, medical industry, has the potential to ISV integration into a network to promote the development of health care.

8. public health information development in the country.

After 2003, public health information development pace; in 2005, the public health field information requirements have accelerated release of signs; expected from 2007 for the next five years, in different areas of China in the field of public health information development will further accelerate.

9, regional medical information integration requirements will be more releases.

The end of 2006, the Ministry announced the "regional collaborative care demonstration project" major project bear units list, points out the necessity to bring together all our strength to "resource sharing, long service, low cost, low risk," the construction of the building concept, covering health, education, business management, disease reporting and public health services of the information service platform.

In the medical industry reform process, how to fully integrate medical resources to better achieve the patients in the community sector and large referral hospitals, and as a key regional medical information integration solutions will be supporting the development of a key.

United States Announces developed a biological Nano-electronic devices

United States researchers in the latest issue of the journal of the National Academy of Sciences of the United States published reports say they use lip nano wire developed into biological components of nano-electronic devices, this bio-nano-electronic devices can not only improve the performance of the diagnostic tool, and you can increase the level of neural repair technology.

Modern communication devices rely on electric field and current delivery information, and biological systems, the use of membrane receptors and signaling control, the speed can be far more than the world's most powerful computer.

For example, the sound waves into neural impulses is a very complicated process, but the human ear can easily complete the process. If you set the biological systems and electronic devices, and will undoubtedly help to increase your computer performance such as electronic equipment. Accordingly, the researchers will turn liposome. Lip in cells everywhere, it can form a stable, self-recovery of the barrier. The ions and small molecules, such barriers are difficult to penetrate; in addition it also can accommodate a wide variety of protein to make it play in cell recognition, transportation and signaling function.

Researchers say they use the bilayer parcel up Nano-wires, so that the nano wire outer forms a protective barrier, so that the lip and the effective integration of nano-wires.

The use of such biological Nano-electronic devices, researchers can monitor specific information transfer, can also control membrane protein, thus achieving rely on biological components involved in improving the performance and efficiency of electronic circuits.

From networking technology will be applied in the medical industry pilot

After the blood donation will be posted on the electronic label, medical waste transport door opening will be monitoring the exception.

10 January, the Beijing Municipal Commission via letter in 2010, Beijing economic and information of the meeting that the emerging of networking technology and this year will be in the health, environmental monitoring, and other areas of pilot applications.

Blood samples will be tagged with RFID electronic tags

By letter of authority Director Zhu yan said that this year will continue to promote the "information" in the action plan of Huimin, the use of networking technology in the health, environment, climate monitoring, agricultural monitoring, and other areas for pilot application.

Letter from the Committee science and technology in the standards Department Director Shao-fu said that health matter networking pilot is currently screening phase, led by the municipality, and this year plans to do both projects, the first is the blood collection agencies automatic identification tracking of blood.

In the future, a member of the public donors, his blood samples will be tagged with RFID radio frequency identification RFID tag from the blood to the final use blood samples are logged, full implementation track management.

The second project is a community station, as well as "electronic portable medical follow-up instrument".

When the doctor; or call a doctor, not only can give patients in situ measurements, and the data results immediately available through wireless and video transmission to the rear, to facilitate the acquisition community health information, establish personal medical records. Lam Sao Fu that electronic follow-up system in the first half of this year, in the dongcheng district of pilot community health service stations.

On medical waste electronic monitoring

In the environmental monitoring of the application on the network, mainly for medical waste disposal process electronic monitoring.

Medical waste transportation does not allow open doors, as in the road there are anomalies found the door opened, the terminal will issue a warning to avoid during transportation by others to the unscrupulous traders secondary use.

In addition, by letter of authority will be the intersection of the town and country planning, tourism attractions, such as the deployment of mobile video monitoring, Dongcheng this year also will implement the "elevator" guardian, you can run the elevator safety monitoring, failure to report to the police.

■ Terms explained

Of networking is the application of information technology, the new model through RFID, GPS, etc. information sensing devices, information exchange and communication, achieve intelligent identification, location, tracking, monitoring and management.

Of networking applications, across intelligent transport, environmental protection, and other fields, computer, Internet and mobile communication network another wave of information industry.

Pharmaceutical and medical apparatus industry awards recognize and thirsting (1)

The world's leading human resource management consulting and outsourcing firm Hewitt Associates latest 2009 China market pharmaceutical and medical device industry salary and welfare assessment reports (hereinafter referred to as "Hewitt Associates report"), pharmaceutical and medical device industries affected by financial crisis.

According to statistics, to the end of this year, the top ten foreign yaoqi total number of vacant positions in as high as 3000. Salary increases higher than the overall level of job-hopping rate remained high Hewitt Associates reports show, 2009 China market in the pharmaceutical industry (non-manufacturing) the overall wage growth rate of about 9.09% professionals, senior professionals, middle managers, senior management remuneration increase respectively 9.16%, 9.31%, 9.39 9.54 percent. Medical device industry (non-manufacturing) the overall wage growth 8.85% professionals, senior professionals, middle managers, senior management remuneration increase respectively 8.54%, 9.13%, 8.27 8.22 percent. 2009 China market in the pharmaceutical industry (non-manufacturing) the turnover rate of employees active at 17.3% on average (2008 15.2%); the medical device industry (non-manufacturing) the turnover rate of employees actively reach 10.5% on average (2008 13.6%). This suggests that pharmaceutical and medical device industry demand for talent is still very strong, highly competitive market. Medicine consumption accelerating increase in the Chinese market into the global spotlight pharmaceutical consumption belonging to rigid consumption, despite a decline in purchasing power would theoretically have a certain impact of drug consumption, but health insurance coverage, to a certain extent, offset by the negative effects. High-end drugs consumption crowd also relatively fixed, foreign employees, senior executives, as well as the National Veterans is still the major consumers, Chinese medicine consumption overall increase in acceleration.

New study proves DSCT reduces heart scan dose

A new study shows that, compared to traditional computer tomography (CT), dual source CT (DSCT) can significantly reduce the radiation dose of cardiac scan.

This study also shows that the use of DSCT diagnosis of Vascular Stenosis may obtain and DSA angiography similarly excellent accuracy. In Switzerland Zurich University Hospital, 120 patients with suspected coronary artery disease by Siemens medical development of the world's first with dual x-ray tube of CT scanner-SOMOATOM Definition, and use the latest Adaptive heart step scan technology Adaptive Cardio Sequence — a first-time application of dual source CT heart stepping scan mode (step-and-shoot). The study results published in the Official Journal of the United Kingdom cardiovascular Association "heart" of the 6 monthly *.

Angiography is a can be used to check the diagnosis of myocardial infarction.

Typically, you can use heart catheterization of x-ray angiography device and computer tomography (CT) system to do this check; if you use CT radiation dose, is a problem. Zurich University researchers want to know how to use CT Angiography, the use of radiation dose can be reduced. So research group adopts Siemens developed the world's first with dual x-ray tube computer tomography system SOMATOM Definition on 120 patients with suspected coronary artery disease.

Researchers also adopts Siemens recently developed apply to all SOMATOM Definition scanner Adaptive heart step scan technology "Adaptive Cardio Sequence."

This technique to step scan-based, based on the ECG accurate forecasting out next heart diastolic, capture image data only in the heart of diastolic completed, in order to reduce unnecessary radiation, Adaptive heart step scan technology "Adaptive Cardio Sequence" Adaptive Cardio Sequence and 83 milliseconds of DSCT maximum time resolution organically and improves the reliability of the technology, while further significantly reduced radiation dose.

"Research shows that 70 BPM heart rate in patients with stable, DSCT stepper scan mode for coronary angiography may be uncompromising diagnostic images.

Relative to the previous use of CT coronary imaging mode, DSCT also allows to reduce significantly the radiation dose. We research the average effective dose 2.5 mSv ± 0.8 mSv. According to written records, General Cardiac CT scan average effective radiation dose in 9 mSv-21mSv. "Switzerland Zurich University Hospital diagnostic radiology radiation expert Dr. Hatem Alkadhi.

Adaptive heart step scan technology "Sequence" with Adaptive Cardio with step scan step-and-shoot using intelligent algorithm, you can monitor the heart rate, if necessary on the arrhythmia in response, for example periods of contraction, irregular heartbeat.

If this occurs, the scan will be automatically postponed will avoid accidental movement causes the image to appear error and, if need be slightly widening acquisition time Windows, therefore, Adaptive heart Cardio stepper scanning techniques Adaptive Sequence can substantially increase Cardiac CT scan of the reliability of step.

"Siemens, patient safety has always been the focus of the CT development.

At the same time, we believe we have the greatest responsibility is to provide the best possible diagnosis doctor image quality, support they maximize workflow efficiency. It is precisely because this objective and sustained development, Siemens has become the market leader in CT technology. "Siemens Medical CT Dept. CEO Dr. Sami Atiya pointed out:" therefore, rely on innovation to reduce radiation dose and increase diagnostic image quality is essential for us. This is our current development applies to DSCT Adaptive heart Cardio stepper scanning technology for Adaptive Sequence. Zurich University Hospital studies show that Adaptive heart Cardio stepper scanning technology and Adaptive Sequence of the organic combination of dual source CT can substantially reduce cardiac scan required radiation dose. ”

Cone-beam CT quick renewal can speed up diagnosis and treatment, lower dose

In the United States medical physicists annual meeting (AAPM), an author of the study showed that a new type of cone-beam CT Imaging method that can be used in image-guided radiation therapy (IGRT) before pouring CT, significantly impede the patient to radiation exposure.

Cone-beam CT in IGRT treatment plays an important role in the diagnosis and treatment means you can duplicate scanning when radiotherapy, precisely positioning adjacent tissue tumor, radiation exposure is reduced to a minimum.

But duplicate scanning produces a large dose of radiation is a very big ones.

Reduce the total number of x-ray scanning, as well as current strength is a simple way to reduce the dose, but the resulting image noise, data processing is slow.

University of California at San Diego's Dr. Jia Xun (Xun Jia) in this society statement on that for radiation therapy, the rapid reconstruction is a must.

These new CT reconstruction algorithm draws on video with the image processing software (GPU) compressed sensing technology.

Use the GPU technology can rebuild in 2 minutes cone-beam CT scan images.

Researchers have developed a fast GPU-based algorithm for the reconstruction of the high quality image cone-beam CT, these images come from the noisy and sampling standards following the diagnosis and treatment of data, in order to reduce the radiation noise.

20-40-x-ray diagnosis and adequate for image reconstruction, the image quality is sufficient for image-guided radiation therapy.

Renewal time from 77 seconds to 130 seconds, using Nvidia Tesla C1060 is GPU card, according to the acquisition of CT vary rows than similar iterative reconstruction method for fast by 100 times.

"Our algorithms like cone-beam CT Imaging can as a case of low-speed 0.1mAs/level. "The researchers said. And now the usual 360 CT comparison, this approach can reduce the dose to one of 36 to 72 points.

"Our algorithms to limit exposure field of cone-beam CT image reconstruction can further reduce the dose limit angle scanning, you can shorten scan time.

"If used for diagnostic imaging, this method can be one-tenth the dose lowered CT or more. Dr. Jiang joint authors.

Aptina company delivering innovative medical image sensor solutions

Aptina Corporation today announced that the base text imaging company (Given Imaging Ltd) PillCam ® COLON 2 built-in Aptina company MT9S526 medical image sensor.

Base text imaging company are 3 patient-friendly can be swallowed-PillCam ® products are used in the small intestine, esophageal imaging, the latest model is also used for the colon Imaging 3 product base text Imaging capsules all built-in Aptina sensor company. Aptina imaging company and Foundation, Inc. 10-year partnership reflects two companies strong relationships, but also help the company develop into medical Aptina image sensor market leading enterprises. *

Base text imaging company chief operating officer Kevin Rubey said: "in every generation, product development, Aptina imaging company and Foundation, PillCam ® capsule company's design team has to meet the performance specifications of the increasingly stringent requirements and adapt faster frame rate and lower power consumption and illumination.

Aptina company clearly indicate their innovations and technical improvement. ”

Base text Imaging PillCam ® company exclusive solutions play a CMOS image sensor advantages, the development of the traditional endoscope market using the old CCD technology for unmatched by innovative products.

The sensor can capture images in low light, ultra low power consumption, and add the color balance and image processing support additional sensor function, therefore, CMOS seating in capsule endoscopy.

Business unit General Manager David Zimpfer said: "to date, we and the base text, image, the company has over 10 years of stable cooperation relations.

We are committed to becoming the technology in the field of medical equipment. The base text imaging company cooperation allows us to continuously achieve the vision of medical imaging. ”

MT9S526 designed for medical applications, its ultra-low power to extend battery life, and low light sensitive solution can capture images in the dark — and all this in the form of small dimensions, to fit into a particle to the needs of the pill.

PillCam ® COLON 2 built-in two image sensors, 1/6 inch optical format and sub-4 mm chip package with 5.6 micron pixel performance, can realize up to 35 frames per second of a broad range of frame rate.

Coping with ECG equipment signal acquisition of design challenges

Electrocardiogram of interference signals from the power supply of 50/60Hz interference, patient activities result in movement artifact, electro-surgical equipment, defibrillator pacemaker pulse, pulse and other monitoring equipment caused by RF interference.

How to deal with the signal acquisition process challenges? this article will tell you the address. Signal acquisition challenges large DC offset and the emergence of various interference signal causes the ECG signal measurement challenges. Typical electrode voltage up to 300mV. Interference signals from the power supply of 50/60Hz interference, patient activities result in movement artifact, electro-surgical equipment, defibrillator pacemaker pulse, pulse and other monitoring equipment caused by RF interference. ECG accuracy in the required will vary according to the terminal equipment changes depending on the needs: standard monitoring equipment 0.05 ~ 30Hz frequency diagnosis devices require 0.05 ~ 1000Hz frequency can be eliminated by two input AC line noise, high-input impedance instrumentation amplifier (INA) offset some 50Hz/60Hz common mode interference. To further eliminate line power supply noise, signal with amplifier by right leg was reversed and the patient refoulement. Just a little micro-current even less to achieve significant improvement in the CMR and remain in the UL544 limit. In addition also uses 50/60Hz digital notch filter further reduce interference.

Analog front end options to optimize power and analog front end for PCB area for the purposes of a portable ECG is critical.

Technical improvements, the current offers a variety of front-end options: 1. use a low resolution ADC (requires all filter) 2. using high resolution ADC (requires less filter) 3. use of Σ-Δ ADC (without filter, in addition to the INA, amplifier, DC offset) 4. use the sequence and synchronous sampling method. Use a low resolution (16-bit) ADC, the signal needs to be significantly gain (increases usually 100-200 times) to achieve the necessary spatial resolution. High resolution (24-bit) Σ-Δ ADC, signal need for 4 to 5 times more modest gains. Therefore you can remove eliminate DC offset the required second gain stage and circuit. This will be achieved in the area and the overall cost. Σ-Δ method also retains the contents of the entire frequency signal and data post-processing provided sufficient flexibility. With the order method, create a single-channel ECG leads can be multiplexed into a single ADC. In this way, adjacent channels are inevitably exist. With synchronous sampling method can be used for each special ADC channels, channel does not exist between the offset mentioned previously.

SPCE061A MCU based hip strength meter design (1).

<P> Abstract: SPCE061A MCU based hip strength meter system structure and some software development processes, analyzes the tester and the use of force measurement method for optical encoder velocity and phase principles. .Tester for the control of the microcontroller core SPCE061A, with serial port, with the PC real-time monitoring, data storage and replication, test data off-line analysis functions. .Experiments show that the test instrument with measurement accuracy, high stability and control interface friendliness. .</ P> <P> 1 Introduction </ P> <P> scientific level of physical training with the continuous improvement of the human body's need for specialized strength training and more attention. .The actual exercise test on a large number of the overall analysis of data, all in the running, jumping sports, and to run and jump athlete based sports, kicking back his forces were smaller than the down or forward kicking power. .And it is precisely backwards kicking power running, jumping exercise required to generate power special forces. .Therefore, the design and development of a practical and accurate hip strength meter for accurate quantification coaches athletes training effect, and the rational development of targeted training programs, and ultimately improve the Athletes, has important reference value. .</ P> <P> described in this article to hip strength meter Sunplus 16-bit MCU SPCE061A introduced as the core components, integrated on existing technology, through the design of hardware and software tester rational planning, and give full play microcontroller .own integrated system-level functional units of many advantages, reduce hardware costs, high reliability and stability. .</ P> <P> the hip strength meter to achieve the following key features: </ P> <P> (1) measuring real-time athletes leg power under the pedal force value; </ P> <P> (2) measurement .Athletes kicking leg and forces under the real-time synchronization speed value; </ P> <P> (3) through the PC real-time display the force, speed and power of the specific values and curves; </ P> <P> ( .4) with data and resume function. .Can be saved and compared with test data. .</ P> <P> 2 System Architecture </ P> <P> hip strength meter block diagram shown in Figure l. .System consists of data acquisition and processing circuit, the control center and the PC real-time data, the curve shows three parts. .</ P> <P align=center> </ P> <P> acquisition circuit will force the hip to simulate the amount of force is passed to the microcontroller I / O port. .Through its integrated single chip 10-bit high speed A / D converter, the power control system are converted into digital available. .Speed acquisition circuit by the optical encoder and phase circuit. .Optical encoder output digital pulse volume after operation by the microcontroller, real-time line obtained rates of force, phase circuit is provided to the microcontroller in the direction of the force. .Sunplus microcontrollers with 16-bit microcontroller SPCE061A, the maximum operating frequency of 49.15MHz, 32-bit programmable multifunction I / O ports to connect various peripherals on-chip integrated 7-channel 10-bit voltage ADC (ADC .) and single-channel audio ADC, and has extensive interrupt resources, especially for demanding real-time control system. .Serial RS232 level conversion circuit to complete single chip-level standards and standards for the conversion level to achieve the tester and the PC real-time full-duplex data communication. .Users can control program through the PC real-time observation and preservation of training data, and the ability to set the parameters of the test instrument. .</ P> <P> 3 data collection and processing </ P> <P> hip strength meter and display the data need to be measured include hip strength, and force the corresponding values of instantaneous velocity and power values. .Among them, the hip forces by the force sensor data collection and matching transmitter complete, instantaneous velocity of the acquisition by the optical encoder and the completion of the phase circuit. .Power may be the product of the force and velocity obtained. .</ P> <P> 3.1 hip strength measurements </ P> <P> hip strength from the force sensor acquisition, and the analog voltage signal is amplified by the transmitter and linear processing, sent to the internal integration of the ADC SPCE061A .complete digital-analog conversion. .</ P> <P> 3.1.1 Force Sensor works </ P> <P> this tester resistance strain force sensor used to complete collection of hip force. .Resistance strain gauge force sensor consists of sensitive components and the elastic component of resistance strain gauge. .When the elastic force-sensitive components are tested, it will produce displacement and strain, while making the paste in the elastic strain on the sensor chip's resistance to change. .Thus, by measuring the resistance change of resistance strain gauges, can determine the size of the measured force. .Internal equivalent power collection circuit diagram shown in Figure 2. .</ P> <P align=center> </ P> <P> where, Rl is attached to the elastic strain on the sensor chip. .R1 ~ R4 arm style composed of DC bridge, the bridge circuit to convert the resistance changes in the bridge output voltage changes. .The figure shows the bridge output voltage is </ P> <P align=center> </ P> <P> that the bridge output voltage Uo and the resistance strain gauge resistance change △ Rl linear relationship. .Integration of the aforementioned shows, the bridge output voltage Uo of the changes reflect the changes in force size. .So by measuring the bridge output voltage Uo, we can achieve the size of the force detection. .</ P> <P> force sensor output voltage signal of Uo and linear amplification by the transmitter processing, Uo by the double-ended input signals into a single-ended output signal Usample. .Analog voltage Usample linear correlation with the measured force, sent to the follow-up to D conversion circuit (ADC) to complete the modulus transform. .Transmitter in the transmission amplifier circuit generally use sophisticated three-op amp differential amplifier circuit with high input impedance and common mode rejection ratio, and by the internal RC coupling circuit effectively reduces the temperature drift to ensure that the measurement .accuracy. .</ P> <P>.

IC technology helps reduce the cost of medical electronic equipment

In 2008 the global medical apparatus sales increased 12% to $ 3360

EU medical device Committee recently published reports, in 2008, global medical device market around 3360 billion of total sales, compared to $ 300 billion in 2007 increased by 12%.

CIC advisory noted that, although the 2008 financial crisis swept through the global medical device market in the world, but overall sales good, reflecting the strong growth momentum of medical devices.

Report publication data, 2008, global medical device product sales totals approximately international pharmaceutical market of 50% of total sales.

This data shows that the medical device industry is a growing and strong industrial growth, has become an important pharmaceutical industry branch.

According to statistics, in 2008, global medical device market around 3360 billion of total sales, compared to $ 300 billion in 2007 increased by 12%.

One of the top 25 medical device company's total sales total sales of the global medical devices of 60%, and spread in the world, tens of thousands of medical device company's total sales only accounted for 40% of the share. Visible, the medical device industry concentration are getting higher and higher.

The EU Commission also medical devices on the world's leading medical device market this year's trend is forecast.

European and American market, the large amount of diagnostic imaging equipment procurement may be dropped.

In the United States, Europe, the markets of developed countries led by the sustainability of the economic downturn will on this year's Western State Hospital purchasing large diagnostic imaging equipment, such as nuclear magnetic resonance (MRI), computed tomography (CT), Positron Emission Tomography (PET) instrument and so on.

The Chinese market will maintain a growth rate of 10%.

The report finds that medical devices market in the world economic crisis has affected is relatively small, this year will maintain a growth rate of 10%. As Western some large diagnostic imaging equipment company set up a subsidiary in China, the China medical device exports this year and the rate of production will be flat with last year, or even a slight increase.

India market, medical devices imported will be slowed down.

India's Government over the past few years to develop the tourist industry, health care has attracted a large number of Western tourists visiting India doctor and tourism, but affected by financial crisis, it is expected that in 2009 the number of medical tourism India will be lower than in previous years, so the number of imported medical devices must be reduced.

Japan market will remain stable.

Japan medical devices industry is basically able to meet domestic demand, little reliance on imports. Although Japan is also experienced in the international financial crisis, but this year Japan medical devices market without a major, fundamental to maintain the size of last year's sales.

Middle East Arab States broad market prospects.

Since the wealthy Gulf oil producers annual import of various medical equipment products worth more than $ 10 billion, and basically no native medical device industry, all important products are imported from other countries, the Middle East Arab region over the next few years will become the world's important new markets for medical devices.

The EU Commission also medical devices, women's health and beauty appliances, new flexible endoscopes and new absorbable stent will be this year's hot product.

Medical device products to enter the average family will dramatically accelerate the pace of

China now has entered an era of ageing of the population, as of the end, my 60 years of the older population has reached 1.6 billion in investment adviser, pharmaceutical industry researcher Guo where ritual pointed out that older persons in need of long-term care and the health care needs enhancement, so future medical device product into the pace of China's average family will greatly speed up.

Investment advisor in the pharmaceutical industry researcher Guo Li stated that medical devices where products from entering the average family's pace there are three main reasons, first is the new health reform in China since the expansion of the medical device market, new health reform increased our investment in primary health care institutions, medical device product will also benefit significantly, this is a medical device products to enter the average family's premise.

Guo where the ceremony that followed, today's medical devices no longer, as in the past only large hospitals are complex and difficult to grasp for large medical device, now with the technological advancement of these medical products are gradually to electronic, compact and intelligent development, its use is simple and convenient, easy to grasp by ordinary consumers, this is also an indispensable condition.

Guo where the ceremony also pointed out that the last medical device product into ordinary, family benefits from the pace in recent years to raise the standards of living, and medical device products gradually from drugstores, supermarkets and other traditional sales channels separated while turning professional chain, people buy more convenience for medical devices, consumer awareness raising also contributed to medical devices into the family.

CIC Advisory published the 2009-2012, China medical device industry investment analysis and forecast report pointed out that, in 2008, China's domestic medical device market share reached more than 80 million Yuan, an increase of almost 3% this year as new steady implementation of the reform of medical, medical equipment market also showed accelerated growth, enter the average family's pace is also much faster.

United States medical device research and development of new products of concern

United States medical device industry presents a new atmosphere, have launched a series of novel design of new products.

1. take a magnifying glass and the precise scale of insulin Pen

International market already has a variety of insulin injection pen products.

While the United States launched the company's new PIC of an insulin Pen, the pen was not only the precise scale, and accompanied by a piece of plastic magnifying glass, available for those with poor Visual acuity when used in patients with diabetes mellitus see tick, avoid using excessive insulin doses cause hypoglycemia symptoms (this can be fatal). This kind of insulin Pen is affected by many older diabetic patients of all ages.

2. the thermometer-digital hearing aids

United States VIRTUAL technology company launched a digital hearing aids.

It uses natural plastic, its shape as a thermometer can be comfortably set in the ear. The hearing aid in a high-performance batteries and micro digital integrated circuit block, outside of voice amplification some times after the transfer to the ear, and filtering out the noise. So new batches of digital hearing aid prices certainly not cheap, each priced at $ 995.

3. determination of weight/fat percentage of body weight

In most of the normal body weight and body weight determination only United States company newly launched a determination of weight, not only can also weighing, measuring body fat content and weight/fat ratio of body weight, which makes the weighing is current with yourself if you need to lose weight.

This intelligent body heavy use of two long-life lithium battery.

Its LCD screen makes weighing, even at night you can clearly see their weight and body fat percentage.

4. can be treated with carbon monoxide poisoning of new instruments

Winter tends to be high risk of carbon monoxide poisoning.

If you do not receive treatment in carbon monoxide poisoning, most likely leave severe sequelae. United States company invented a revolutionary carbon monoxide poisoning emergency treatment apparatus — CLEAR MATE. It can turn oxygen and carbon dioxide proportionally mixing input of carbon monoxide poisoning, and accelerates the blood carbon monoxide and the blood circulation and brain, the brain injury prevention of carbon monoxide. CLEAR MATE is in the clinical trial phase. This instrument is particularly suitable for small, remote villages in hospitals.

5. without tying suture instruments of surgery

In the past, the doctor in suturing skin or tissue must be tying, however, encountered a soft tissue stitched, tying more trouble.

United States COVIDIEN company invented a new type of without tying surgical suture instruments products. Doctors use this instrument can be stitched certain soft tissue breath joints, without tying. More importantly, the suture instruments use one-time absorbable sutures, without stitches out after surgery. This will reduce the probability of postoperative infection. The new surgical suture instruments is particularly applicable to all kinds of Laryngology small operation, because it is difficult to laryngeal branch operation for tying.

Laser + ultrasonic detector: scientists developed a new technique of lymphatic cancer detection

How to detect the lymphatic cancer has always been a challenge for pathology, pathologists who currently need to use more complex methods for detection, even so, the detection process still the same like a needle in a haystack.

But the recent United States University of Missouri's scientists have developed a laser pulse to scan the lymphatic cancer of sound and light technique, this technology principle is to use lymphatic cancer malignant melanoma easy to react with the laser pulse, they absorb the pulses volume variations due to temperature and reduce the rapid expansion, expansion/shrinking process would send shock waves to the outside, so that scientists can use special sensors to gather these shock waves, resulting in accurate, quickly figure out whether the patient is suffering from lymphoma and specific parts of the illness.

　　

According to the research team members John Viator explains: "this is just like a filling cakes.

In order to clarify the cake in the filling of location, our approach is not a direct insight into the cake, but using an ultrasonic probe at most likely put the filling of the site, if you detect a signal, then the site is filling. This approach greatly saves doctors check for lymphoma in time and costs. ”

For the month of July, 2009 Viator in the biomedical engineering magazine published an article entitled "the Sentinel lymph node in malignant melanoma detection method of sound and light", at present he is Professor of the University of Missouri-Jae Kwon cooperation to carry out the studies.

Currently, the research team is examining how to use gold nanoparticles to detect cancer cells do not contain melanin to let this kind of sound and light detection technology can be applied to other forms of cancer as the detection of breast cancer cells.

"Lymphatic cancer malignant melanoma in melanocytes, and breast cancer cells do not contain any pigment, so we are unable to use General laser irradiation of these cells to make them respond.

But we are currently on a such a colorless cancer cells for dyeing of nano-materials, so that you can put our detection methods for promotion to the various forms of cancer detection. ”

Viator also expressed his hope that the detection methods as soon as possible be commercialization, and stated that such detection tools "is a powerful tool in the fight against cancer."

In addition, the research team for this kind of sound and light detection method of the latest research results in the next few months in the biomedical engineering magazine will publish on.

CMOS image sensor technology advances and market analysis (1)

1. Introduction to the image sensor is the sensor technology in an important branch, is the PC multimedia world indispensable peripherals in the future, and also the security monitoring industry's core components.

In the knowledge economy and information society has come of this, it's in our social life more and more applications. Solid state image sensors into charge-coupled device (CCD), MOS-and CMOS-three categories, early because of the integrated circuit design and technological level of restriction, MOS type camera devices could not overcome its sensitivity to low and anti-jamming ability small shortcomings, which are not widely used, along with the development of television technology and semiconductor manufacturing technology of the quicker, MOS-camera device faults be overcome to a certain extent. To the late 1980s, Edinburgh University successfully trial-the world first single-chip CMOS image sensors, thereby opening the way for practical use. CMOS-camera device is part of the image sensor and a control circuit integrated on one chip, which not only significantly reduce the volume and power consumption is significantly reduced. Low price make it in the address and other related applications have great potential, so that the CMOS image sensor and gradually become the focus of research and development. CMOS image sensor and CCD camera device in almost 20 years ago is also underway. Because CCD device with illumination high sensitivity, low noise, the advantages of small pixels, resulting in the past 15 years it has been dominated image sensor market. In contrast, CMOS image sensors in the past there was a pixel, the SNR of small, low resolution, the dark current is large (this is determined by the sub-micron methods need caused by high silicon; larger dark current lead to larger image noise), and so on shortcomings, it has been unable to compete with CCD technology. But as LSI technology continues to develop, past CMOS image sensor manufacturing process is not easy to solve technical problems, now can find the appropriate solution, which greatly improved CMOS image sensor image quality. Current CMOS cell area the number of pixels in the CCD unit with the area of the pixel is equivalent to the CMOS image sensors can achieve a higher resolution. If you cannot use a black and white and color CMOS image sensor-to-noise ratio and increased sensitivity to light 10dB, 4 ~ 5 times increase, then replace the CMOS image sensor CCD devices soon. If the CMOS image sensor with small size, light weight, low power consumption, high reliability, high integration, low cost, wide dynamic range, anti-radiation and almost no trailing, and so the past has not been fully exploit the advantages into full play, CMOS image sensor will put us into a new era of image technology. This shows that the CMOS image sensor of the above benefits will be replaced in many areas of the market occupied by CCD, and open up a wider market, thereby significantly extending the application of video technology. Although the current CMOS image sensor image quality is still slightly inferior to the CCD devices, however, it is estimated that one year later the image quality is high, then all CCD image sensor applications may use CMOS devices. CCD device due to the high power consumption, large, and so has the range of difficult to access, CMOS camera devices will occupy. In this way, CMOS image sensors in the security monitoring, doorbell (such as security cameras to monitor the situation of stealth), embedded mobile phones, laptops and PDA digital camera, rearview, consumer electronics, toys, P videoconferencing, video phone, video e-mail, closed circuit television systems, medical devices, computer input, digital still cameras, supermarket anti-theft, elevator control, PC multimedia needs high-quality, low-cost black-and-white and color images, and other applications will play a very important role.

2.CMOS image sensor market prospects according to United States Omni Vision company predicts that global imaging products in the market from 1998 8.8 million increase to 16 billion in 2002, the whole to double.

In addition, according to market research firm forecasts, Cahners In-stat Group 2002, based on CMOS image sensor imaging products will reach 50 per cent, that is, when the CMOS image sensor CCD and will replace the market mainstream. Omni Vision forecast of United States domestic and global development of CMOS camera market conditions as listed in table 1. Visible, CMOS camera market prospects are very broad. The next few years, global sales of CMOS image sensors, the rapidly increasing and in many areas of digital imaging applications to traditional CCD launched impact. It is expected that by 2002, sales will reach 60 million tablets. This is because the CMOS image sensor parts have two advantages: first, lower prices than CCD devices 15 ~ 25%; the second is the chip structure can be easily integrated with other silicon-based components, which can effectively reduce overall system cost. Despite past CMOS image sensor CCD image quality is poor and low resolution, but after a quick approximation has been continuously improved, CCD's technical level, this sensor has been widely used in the resolution requirements lower digital cameras, electronic toys, video conferencing and security system camera structure. Japan Nintendo Co., Ltd. has recently launched a CMOS image sensor for low resolution digital camera, listing the first two months, sales reached US $ 100 million units. Mitsubishi, Motorola, HP, Toshiba and Intel Corporation will soon launch this kind of product. According to statistics, global annual sales of CMOS image sensors for 1997, 1998, 5400 million $ 2.18 billion, projected to 2002, the product sales will increase to $ 48.87. In 1997 the United Kingdom VLSI vision company monthly sales of 10 million block CMOS image sensor chip. The company is the world's production CMOS image sensorFor chip and CMOS camera one of the biggest manufacturers. Table 2 lists the global CMOS image sensor sales and sales forecasts.

United States Omni Vision company launched OV series CMOS image sensor to 1000 tablets for units from sales, prices are as follows: black and white analog output OV7000 series (628 × 528CCIR/508 × Δ 92 E I A) price of $ 17 per piece; black and white digital output OV7100 series (640 × 480CCIR) of us $ 17 per tablet, color analog output OV7500 series (628 × 582PAL/508 × 492VTSC) $ 19 per tablet, color digital output OV7600 series (640 × 480CCIR) $ 19 per tablet.

Toshiba Corporation in 2001 sale of 55 million block imaging chip in half is the latest CMOS image sensor. Now, North America, Japan, Europe and other parts of the production of black and white and color image sensor has been used PC camera, table 3 shows the use of CMOS image sensor manufacturing PC camera market forecasts.

New Proton line cancer treatment system will achieve painless radiotherapy

Japan Hokkaido University and Hitachi (Hitachi) announced that, due to the new Proton cord cancer treatment system in Japan "is selected as the most sophisticated research and development support to national projects in the planning", the two sides signed a joint development agreement.

In accordance with this agreement, Hitachi will be 2014 to Hokkaido University delivery system.

According to reports, "State-of-the-art research and development support planning" is Japan important scientific technology planning, Japan total 565 items around.

In 2010, the integrated science and technology meeting, choose an affordable Japan Science and technology in the future mission of 30 "nucleus research staff and research". The candidates from Hokkaido University, Professor of medical studies clay Bo tree "development sustainability development of molecular track radiation therapy device" is selected. This is the only medical radiation is selected in the field of the project, as Japan's future radiation medical and cancer treatment technologies play a facilitating role in the project, has been focus Japan and abroad.

The project will be fusion of "Hokkaido University moving object tracking technology" and "Hitachi's point scanning irradiation technology", jointly developed by both sides to high precision on location because of breathing, etc change the tumor for proton irradiation "small high performance Proton cancer treatment system" line.

Hokkaido University Hospital will be built to set the system's Proton line cancer treatment facilities. The facility is scheduled to begin construction in the year 2011, completed in March 2014, as Hokkaido University Hospital's new facilities used for therapeutic purposes.

Can also be used to move the site

According to published materials, Proton line cancer treatment method is the radiation treatment for cancer, one can make use of the accelerator will be accelerated to high speed Proton, centrally through the tumor to treat cancer radiotherapy.

When patients treated with almost no pain or injury the body morphology and function. Therefore, this approach can take into account the treatment and as a normal life, to ensure the quality of life (QOL: quality of life) in the treatment of advanced cancer therapy and attention.

Publications that use this kind of treatment methods, such as in brain tumor will not change the location of the site, for centralized point of exposure to radiation is not difficult.

On the other hand, because of the lungs and liver, the body parts of the tumor will vary depending on factors such as the respiratory movement and change the location, so it was urgently want to be able to develop to a real-time understanding of tumor location and accurate for radiation technology.

Hokkaido University for more than half a century have been developing in the radiation therapy focuses on the radiation of important tumor location technology.

Clay has developed through x-ray perspective image automatically get into mobile tumors near Golden tag location, only the location of the tumor arriving is radiation "mobile objects tracking technology". Also successfully developed using the technology of the "world's first single," 4-d x-ray therapy device. Publishing information that can be equally because factors such as the respiratory movement and change the location of the internal organs, by image real-time understanding of tumor location, accurate to radiation.

Hitachi previously through the power system operations, access to the accelerator and radiation and control techniques and experience, and to use these technologies to promote a Proton cord cancer treatment system development.

May 2008, the company makes according to tumor shape high precision irradiation Proton line "point scan irradiation techniques" practical. Hitachi also for the first time, the "global" to the General Hospital of imported using the technology of the system, to be delivered to the world's largest Cancer Hospital — the United States "M.D. Anderson Cancer Center".

ADI launches first 1ppm DAC (resolution + precision) (1)

If you want to implement 1ppm DAC analog system design, often face a complex engineering challenges.

At present, the usual way is to put more of a lower resolution of DAC and a large number of discrete devices and support IC together, with the attendant is considerable development risk and high cost of modification time.

Therefore, ADI has launched the first truly 1ppm (one millionth) resolution and accuracy of the 20-bit DAC devices-AD5791, its accuracy and resolution is higher than similar Converter 4 times.

AD5791 have the resolution and accuracy 1ppm, low noise (1ppm following), fast refresh rate (1us) and very low output drift (1ppm following), which can greatly simplify the design task, reduce development costs and reduce risk.

In MRI (magnetic resonance imaging) system, this breakthrough technology not only improves image quality and can be applied to high-intensity magnetic intensity gradient for precise control, thereby achieving very high image resolution and contrast.

The use of low noise, low drift and high linearity performance AD5791, eliminates the need for system calibration cycle causes of MRI system frequently offline, effectively extending the working time of MRI System. The new converter also reduces the need for complex calibration algorithm, which can reduce engineering and system maintenance costs. In addition to the MRI System, suitable for the application of other AD5791 also includes: testing and measurement systems, high-end science and aviation instrument, communications equipment, and industrial control systems, etc.

Machine vision-based glucose solution quality inspection system design

1 Introduction

As industrial technology development and improvement of the quality inspection standard, high-speed production line of traditional medicine and water quality testing methods are slow, detect quality affected by anthropogenic factors and the impact of the work environment difficult to guarantee the conditions of hygiene, to meet modern quality control and process control requirements, the need to study more advanced detection technology to complete quality testing of pharmaceutical products.

Machine vision applications in health care is very extensive, modern many difficult surgery in machine vision with the complete, such as skin testing, the Visual brain CT Imaging, surgery, etc.

Medical machine vision also is applied in some pharmaceutical products, medical and some scientific research, such as glucose liquid detection, detection of chromosomal testing, RBC, etc. [1].

In order to effectively address the modern medicine production line of products for real-time detection issues that this article for glucose solution quality testing has designed a test system.

The design goal is: the use of machine vision technology, use more than one CCD camera, special lighting, work performance of industrial computer to replace the artificial, achieving glucose quality of automatic detection. This experimental system designed to develop high-precision, high-speed automatic detection of smart glucose unit provides effective basis [2].

2 glucose testing process

Medicinal glucose injection of production process as shown in Figure 1, the first through the high concentration of glucose and proper proportion of distilled water are glucose solution, and glucose solution filling into a high temperature and UV disinfection container inside a package.

Package of product after the quality inspection to detect objects primarily:

(1) liquid inside of suspended solids, such as no impurities, fiberglass, etc.;

(2) defects in the bottle;

(3) bottle not cleaned of dirt;

Figure 1 glucose production process

Traditional methods of detection, detection is artificial detect shop located in a separate darkroom, with detection of glucose using artificial manner on the Assembly line, assembly line workers by detection of the speed control, when drugs to detect the presence of workers, workers from the line out, in a dedicated light box judgement whether qualified product quality.

Artificial detect the existence of significant disadvantages:

The modern production line 1) are getting higher and higher speed, manual testing is very difficult to meet the detection rate of line;

2) modern manufacturing stressed real-time, online, non-contact detection to ensure full control of the manufacturing process, increase production efficiency and product qualified rate, this is the traditional testing methods are not available;

3) modern product manufacturing accuracy greatly increases, demand the corresponding high-precision detection method.

4) conventional artificial cannot continue to maintain a consistent test results; different detection differences between; unable to achieve real-time process control;

5) traditional detection cannot adapt to the modern quality control and statistical process control (SPC).

3 test system structures

For glucose liquid inside tiny glass scrap, rubber scraps or other insoluble particles, in a static situation generally precipitation in the bottle bottom or top of the bottle, artificial detect need glucose liquid upside down, so that it occurs in liquid movement, while also driving solid impurities, impurities with drug body motion to a central area, and then trigger the camera to capture images can take a clear image of defective parts or by way of judging the moving object to determine the existence of impurities.

Based on this principle, this experimental system design of a high-speed rotating platform, rotating platform can bring high-speed spin the bottle and then play out, so driving the movement to detect impurities.

3.1 platform hardware chart

As shown in Figure 2, the question detecting glucose bottle jams in go bed, bed time driven rotating spin the bottle for machine vision installed in the dedicated led light source as shown in the source box, CCD camera will image transmitted to IPC.

Following on the hardware platform for details.

Figure 2 glucose impurity detection device chart

(1) handle: according to the figure shown in the direction of rotation knob can lead pallets movement up and down, in order to place the bottle;

(2) motor: normal AC motor, drive the transformation of the rotational spindle speed of bed;

(3) top pallets: glucose pallets in the cradle, and when rotation handhold pallets for convenient placement bottle up and down movement;

(4) light box: light box to place a ring UV source, through the bottle bottom-up radiation medicine;

(5) CCD camera: responsible for shooting sports medicine;

(6) of the IPC: responsible for CCD camera image sequence;

3.2 work process

(1) turn the handle to lift the top pallets, place the question detecting glucose bottle to base;

(2) lay down the handle, close it, open the go card, go bed of spindle rotating speed driven pallets, due to the friction of pallets driving the bottle also do high speed of rotation;

(3) stop go bed, bottle card stop glucose bottle stop spinning, but liquid in inertial effect to continue after a slow stop rotation;

(4) in this process, continuous shooting of 7 images in the sequence of the moving image, moving target for recognition;

(5) when the recognition to exceed the allowed indicator, judging this bottle of liquor is not qualified

3.3 visual imaging

System configuration

Image acquisition part will complete the line of motion image acquisition, image acquisition part acquisition image quality is good or bad will directly influence the detection efficiency [3].

Image acquisition part mainly by CCD camera. CCD camera exposure image signal, from image acquisition card image signal acquisition. The objective of this experiment apparatus selects two orientation of the camera to detect objects to be detected, a down-beat-a side shot, on some question to detect objects can be multi-faceted detection. The camera is Pulnix company TM6703 [4], acquisition card use a Matrox company Cornora2 [5].

Matrox Graphics is a Matrox Corona Ⅱ, production Inc. image controller, you can capture every scan/progressive scan component RGB signals and single/dual black-and-white analog video signal; 3-channel A/D converter 10bit; 24-bit RS-422/LVDS digital interface; simulation case acquisition rate 30MHz, RS-422 digital mode up to 25 MHz, LVDS digital mode up to 40 MHz; connect two RGB or six analog black-and-white video signal; 32-bit/33MHz PCI bus master mode; add-on board for real-time acquisition and storage; support for both analog VGA and independent digital VGA or TV output [4].

Pulnix company TM6703 is 1/2 inch, 648 * 484, shutter speed 1/60 ~ 1/32000 seconds while with asynchronous reset function.

When the pulse effect VINIT, reset the camera's CCD scanning clear. When in asynchronous mode and external VINIT high level signal, asynchronous functionality will automatically be selected, the readout is prohibited until a trigger. The following is the asynchronous reset camera modes:

1) control pulse width external VINIT: shutter speed control with pulse width;

2) fast internal trigger mode: when VINIT's falling edge and the external HD is the same time, signal delay, otherwise the crawl does not, there will be a delay of 0-1HD;

3) slow internal trigger mode: you can select the shutter speed 1/250-1/2000 seconds, if VINIT and external HD-drop along the same, and you start the integral charging, discharging VINIT drop along the camera.

Output delay depends on the selected shutter speed.

4 testing process

Through the previous analysis, detection of suspended matter in glucose experiment need a high speed of rotation of the platform.

The entire test system operation process as shown in Figure 3:

First the system, all device initialization, according to glucose suspended solids test requirements for configuring camera and capture card parameters.

Then, start rotating platform, rotating platform driven rotating 30 seconds for glucose liquid, high speed of rotation stop Rotary platform, delay of 10 seconds after the liquid slowly stopped, at which point the camera image sequences.

Figure 3 glucose impurity detection process

5 innovative point of this article

(1) this article will machine vision applications in a quality inspection for glucose solution, enables non-contact detection, in drug safety and precision are the traditional manual detection has improved significantly.

(2) of this article according to the characteristics of glucose liquid impurities design Rotary measuring device.

(3) according to glucose liquid impurities detection features designed exclusively for Visual Imaging programme.

6 references

[1] Rafael C. Gonzalez , Richard E. Woods .Digital Image Processing (second Edition).Pubulishing House of Electronics Industry , Beijing.

2002.

[2] Zheng Shi-tea, wool seldomly, hubo. machine vision recognition cotton disease patterns feature extraction [J]. a micro-computer information, 2007, 04-1: P290-292.

[3] Wang Wei, Li Tao Wang Nan, etc. Machine vision-based development of prior examination experiment platform. China instrument, 2006, (4) .62-64.

[4] Matrox Corona2 installation and hardware Reference[z].

Matrox Electronic Systems Ltd. April 23, 2001.

[5] PULNIX TMC6703 Manual[z].PULNIX America Inc. 2004.

Universal human respiratory gas detection instrument design of electronic nose (1).

<P> Introduction </ P> <P> human body fluids detected by health status, which in the clinical application has been very mature, and indeed for the diagnostic process provided very valuable information, but relies on the one hand, body fluid detection reagent ., high cost, on the other hand most of the testing method based on the "invasive" process, are not suitable for high frequency testing. .Physical health status as reflected in another way, the body's respiratory gases (pulmonary respiratory tract volatile gas and gas) can also reflect some important biological processes and metabolic information, and detection methods can, to some extent make up for lack of the former. .</ P> <P> purpose of this design is the use of the ARM7TDMI-S processor core LPC2478 system of electronic nose instrument control, analysis and gas detection signal discrimination, and the achievement of the case from the PC, .to provide a friendly graphical user interactive interface (GUI), so that users can control their own operations and record their health status. .</ P> <P> the original intention of this design is that family members can apply the system for monitoring health signs, and mainly focus on the detection of human respiratory gas in ethanol, aromatic compounds and gases out by the human digestive tract volatile .sulfide gas, amine compounds and other content, so as to alcohol, smoking populations, and the respiratory tract, gastrointestinal tract, the health status of populations is not intuitive and convenient for inspection. .Gas detection system, the signal line to achieve the principal component analysis (PCA), and because the training process requires a large number of samples, so the system of artificial neural network (ANN) on the raw data for further analysis of gas through the U disk USB Host write to .in data migration, and copy the data to the SD memory card, the user is easy to observe the results of long-term archiving. .</ P> <P> system to achieve </ P> <P> system for the detection of human respiratory gas primarily through its control efficiency of the gas can be realized. .The injection of gas, the system has two different detection methods: the higher concentration of gas, stepping motor driver six-way valve, switch to the "direct injection" state, that gas from the inlet into the chamber, in the .heating chamber in the state with the metal oxide gas sensor array (Gas Sensor Array) contact; while for lower concentration of gas, six-way valve will switch to the "absorption into the kind of" state, that gas from the inlet into the gas .Way later, in the adsorption desorption unit (EDU) were enriched in the (room temperature), and in the enrichment process has been completed, the carrier gas into the opening by the carrier gas, the gas from the marker under the EDU PID temperature control to bring out, .and into the gas chamber, this is the realization of the gas detection system, the basic principle and process of detection. .In this process, the state needs LPC2478 on gas (six-way valve switching, EDU temperature control, vacuum pump rate and gas sensor array signal sampling, etc.) for process monitoring and measurement, and through the TFT LCD, the keyboard array with the user-friendly implementation .interaction. .</ P> <P> signal after the gas is detected, the data need to LPC2478 principal component analysis (PCA), through mathematical modeling method, the design improvement of the traditional PCA algorithms, and data transformation in two .dimensional principal component coordinate system "point group", to use these point group, the sample gas in the cluster to determine the main components. .</ P> <P> in the whole process of gas detection, are needed for the gas in the gas in the flow of power, this system uses 10-bit LPC2478 DAC driver circuit of the vacuum pump to control pump speed control in achieving the .same time, the gas flow rate of gas in a more precise control, on the one hand meet the "absorption into the sample," the rate of gas adsorption process, on the other hand while maintaining full contact with the sensor when the gas sensor response time. .</ P> <P> hardware platform </ P> <P> the breathing gas detection using electronic nose prototype produced by the Guangzhou Zhiyuan Electronics Co., Ltd. SmartARM2400 development board and the project team made the expansion board to achieve gas .hardware modules of the control and analog signal pre-processing functions. .Hardware modules, including gas adsorption desorption unit, vacuum pump, six-way valves, solenoid valves, stepper motors, air chamber (TGS series of metal oxide gas sensor array), and the gas sampling bags. .System hardware design block diagram shown in Figure 1. .</ P> <P align=center> </ P> <P>.

Based on XMEGA portable design of electrolyte Analyzer (1)

Electrolysis quality Analyzer for determination of biological specimens such as blood serum, plasma, blood and the value in the urine diluted potassium (K), sodium (Na) and chlorine (C1), calcium (Ca), pH, etc., and providing standardized by computational ionized calcium (nCa), total calcium (TCa), in the clinic has a great significance.

Since the 1980s, Olympus, Ciba-Corning products into China abroad, domestic electrolyte Analyzer rapid follow up, and developed a number of performance products. In recent years, with some unexpected events occur (such as: Wenchuan earthquake), portable medical instruments demand increases greatly, portable electrolyte Analyzer is one of them.

Here a ATMEL used company launched a high-performance SCM XMEGAl28 as the core device designed by battery-powered portable electrolyte Analyzer, can meet the demand for field use.

1 XMEGA introduction

XMEGA is an 8-bit AVR microprocessor upgrade version of strong performance.

Second generation picoPower technology, XMEGA uses, is the only real use 1.6 V operating voltage of Flash microcontrollers. Ultra-low power consumption of the devices, and with fast 12-bit analog capabilities, 1 DMA controller, 1 x innovation event system, as well as 1 AES encryption engine, all without the need to consume CPU resources, to minimize power consumption and improve system performance. XMEGAl28 microcontroller Flash memory capacity of up to 128 Kb, 100 pin SMD package, operate at 1.6 ~ 3.6 V, 32 MHz frequency processing performance can reach 32 MI/s.

Because the internal XMEGAl28 rich resources and strong performance.

Make it very suitable for embedded systems. The portable electrolyte Analyzer uses XMEGAl28 as core microprocessor, makes the whole system peripheral devices greatly reduced, while reducing costs and improving system security and reliability. XMEGAl28 larger program storage space to meet electrolyte Analyzer of a large number of software code.

2 system hardware design

The system is based on a microprocessor, ATxmegal28Al peripheral connection is displayed, press the key, printer sensor zoom, cartridges, power supply, communication module, its hardware design structure diagram shown in Figure 1.

Display part adopts 320x240 Generic LCD, directly driven by ATxmega128Al bus, providing users with more intuitive information, also makes the operation more convenient.

Embedded micro printers using micro siupo company thermal printer, easy field output document type information directly from the bus driver ATxmegal28A1.

2.1 sensor conditioning amplifier

The Analyzer of the sample solution by polymer membrane sensor measurement of signal amplitude is very small, in-between 250 ~ 250 mV to direct A/D conversion.

Therefore, you need to make the analog signal conditioning amplifier. In circuit design, and ion-selective electrode high internal resistance matching, CA3140 integration adopted operational amplifier as level zoom, secondary amplification using high-precision low-drift amplifier HAl7741 operations.

As shown in Figure 2, uses three operational amplifier consisting of measuring amplifier, the preceding 2 high input impedance of the CA3140 constitute a differential input.

Back-end of HAl7741 is actually a differential gain follower, its approximate to 1. In order to ensure the accuracy of the amplifier, resistance select negative feedback high accuracy and low temperature drift of precision resistance and circuit closed-loop gain is not too large. At the same time to prevent the circuit board surface leakage current, the Board carried out a partial outline. In order to be able to work under field conditions, the Board also conducted a moisture-proof electronic processed and shield.

Development of accompanying robot Harbin Institute of technology

Recently, Harbin Institute of technology Robotics Institute developed a chaperone robot.

Associated researchers say the chaperone robot is mainly used for assisted living, elderly for two to three years for small volume production.

It is understood that the invention is entitled "help the old assistive robot key technology research" project, which in 2006 was included in the high-tech development plan — "863" project key projects, and to start in 2007.

This project established a pressing reality background. China is the world's most populous country, and the older population than any other country, currently more than 60-year-old 1.49 billion, 11% of the total population. But in our country, old-age care becomes a problem. The Civil Affairs Ministry officials said that our country requires a minimum of 1000 000 endowment care personnel. In such a situation, chaperone robot came into being.

China AAAI robot standing professional Committee, Harbin Institute of technology Robotics Institute researcher Li Feng explained that if the old sick in bed in the family, accompanying robot can help get their prescriptions, end-to-water, can also take the food in the fridge microwave heating.

If the home to the guests accompanying robot will go to the door. Many children do not trust man lives alone at home, often worry about the hidden dangers of gas, electricity and water to exist, even the thief's invasion, then accompany the robot through the sensors, monitoring systems for identifying exceptional conditions, by SMS or network to host alerts, children also are available through the Visual system see the elderly at home. Chaperone robot can also be used as a Terminal, and community safety, medical network established the interactive platform; elderly people feel lonely, chaperone robot can "story," "sing" to "accompany them playing chess".

We understand that our research and development of accompanying robot is successful, will be part of improving the reliability of the device, in order to reduce costs.

Researchers said the two or three years later the progressive realization of the small-batch production, walking into the family.

United Kingdom successfully developed can send alerts of "digital plaster"

The latest reports, the United Kingdom doctors are testing a way to track patients, heart rate, body temperature and respiration of the "digital plaster", this device can be used in patients with a vision to the doctor sends an alert to doctors to quickly control the condition, but also can save a lot of medical costs.

The device consists of Imperial College London, United Kingdom for the researchers, is currently conducting experiments United Kingdom Saint Marys hospital.

Researchers make healthy volunteers equipped with these devices, to understand the sustainability of the collected data, get accurate physiological data are adequate, etc. Research results will be published next month.

The project's Chief Scientist, Imperial College London, Institute of biomedical engineering? Thomas, Chris said, such as the "digital plaster" this device can help the doctor at home monitoring of patients, to solve problems in advance, but this new device is 8 years of painstaking work.

They also research and development can measure blood pressure and other key signal semiconductors.

It is understood that this breakthrough technology and mobile device is a considerable chip sensor size and equipped with a traceable ECG heart activity, as well as the box used to monitor respiratory condition of thermometers and motion sensor, has a light, low energy consumption, portable, etc., can be 24 hour monitoring of patient's condition.

Scientists in South Africa: AIDS is expected to fall 40 years

Medical experts study found that antiretroviral therapy will not only be able to extend the life of AIDS patients, but also can reduce HIV infections.

Expert initiative, the human immunodeficiency virus (HIV) testing as a whole routine medical projects, an early detection of virus carriers, timely treatment, so hopefully in the next five years on the spread of AIDS, 40 years for AIDS virus in human society itself.

Reduce the spread of

Who the former officials, South Africa epidemiological models and Analysis Centre for epidemiology Professor Brian Williams in the United States for the advancement of science annual meeting, said that antiretroviral therapy will enable virus concentration was reduced to the original one, so that the virus infectious dropped to one-fifth of the original 20, this means that if more virus carriers can receive antiretroviral therapy as early as possible, then the new infections are reduced.

United States cable news network (CNN) site 21, invoked his words: "we may be in 5 years from the effective suppression (AIDS).

"The United Nations programme on HIV/AIDS and the World Health Organization 2008 statistics show that about 33 million people worldwide living with HIV, 2 million people died of AIDS, and new infections by 270 million people. Typically, an HIV carriers in the event of a complication of AIDS infection, may 5-10 people.

Cost-effective

Williams, who has attained the age of 15-year-old HIV testing every year for the early detection of infection, to antiviral treatment as soon as possible.

But he admits that this measure exactly how to do this quite difficult and expensive.

Williams said that the implementation of this recommendation is expensive, only South Africa country expected to take up to 30 billion a year to $ 4 billion.

But from the AIDS patients in the hospital treatment costs and the loyalist who AIDS perspective, this recommendation is without doubt or cost-effective. The world at the moment for AIDS research and treatment cost of $ 300 billion a year, some experts estimate that this figure will double in 10 years.

Preparing pilot

Williams said: "I hope we can start in one or two years of implementation of this project, and covered entirely in 5 years.

"The project will be carried out in Africa and the United States, the pilot area residents pilot accept annual HIV testing, such as positive, immediately begin antiretroviral therapy.

Two years will determine whether this measure as a public health policy in the world.

If you want to purchase medical equipment, should pay attention to what issues?

Many families in order to make it easier for patients to purchase medical equipment for treatment at home themselves.

So, purchase medical devices should pay attention to what issues?

Buy medical products should be aware of the following four questions:

1. in the medical device on the fuselage or packaging should be marked with a medical device product registration card, product standards, production company name, address, contact us.

2. the product or packaging products should be accompanied by a certificate (or label).

3. the products shall be accompanied by a statement specifications on the product's main structure, performance, scope, contraindications, precautions, and other necessary warning or hint.

4. have a lifespan of the product, should be indicated on the packaging, the validity period expired in may not be sold, used.

Siemens in the annual showcase of the latest SIIM2009 medical imaging innovations

As medical market innovative imaging solutions to leading IT vendors, Siemens medical, June 4 to 7 October in North Carolina Charlotte City held medical imaging information Association (SIIM) 2009 annual meeting, shows its face radiology, cardiology, and image processing of the product portfolio of the latest innovations.

"Walking in the forefront of technological development, and help customers manage the daily flow of data is very important.

"Siemens Medical Imaging and knowledge management division CEO Dr. Arthur Kaindl pointed out that" because of image data volume growth geometrically-level, so we will continue to develop innovative solutions to address these challenges. Our solutions are designed to optimize the working processes, the quality of diagnosis and treatment to help customers enhance, improve efficiency and reduce costs. ”

Syngo Suite is Siemens Web network of radiology information system (RIS) and image archiving and communication system (PACS), with the application of intelligent reprocessing, computer-aided detection (CAD) applications and embedded speech recognition features, including a series of Siemens in SIIM on innovative applications and solutions.

Siemens shows multiple venues RIS syngo Workflow solutions new enhancements, while showcasing the latest solutions syngo "portal", the new portal anytime provides role-based access to applications and information.

Latest Portal syngo Portal Executive is a way for managers, Department heads and it management related issues advance management Web network solutions — no matter the amount of a statistical review, monitoring patient wait time or oversight report release cycle.

This new portal to monitor and analyze operating performance for the Department of 40 multiple key performance indicators (KPI).

Syngo Portal launched a new tool for Radiologist, radiologists can in the same application window concern important patient information, such as new and original image sequences, previous inspection reports and test results, etc.

Syngo Workflow embedded Voice transcription tool syngo enables upgrade released on context-sensitive shortcut function, help to increase the efficiency of transcription.

New clinical notification feature to highlight some of the clinical data, makes it easy to quickly understand important patient information.

New version syngo Imaging V35 (PACS) is now available, in scalability and performance to achieve a significant improvement.

In addition, the new version syngo Imaging V35 also new patient positioning and presentation capabilities. Version 35 have machine fusion of the independent innovation of CAD (computer aided detection function) and can be directly displayed through PACS browse table of advanced imaging solutions, thereby improving diagnostic quality and workflow efficiency.

In addition, the upcoming syngo Dynamics (Cardio PACS) 8.0 or can assist with medical institutions improve cardiovascular imaging, vascular ultrasound, General imaging and clinical examination of the efficiency of gynaecology and obstetrics (for information about this product is only a preliminary information.

At present, the product is still in development stage, does not implement the business, the company cannot ensure that the future will provide such products). New features of this solution improves heart disease Department workflow, including building key performance indicator management reporting tool that can increase transparency, support to the advance of Department management. New Webcast algorithm for image through web network call brings significant improvements.

The latest advances in simulation technology, "" promoting medical progress

"This A-D converter is based on the occupational requirements.

Because of the precision and power consumption is very demanding, so we use state-of-the-art technology architecture. Health care now has become a leader in the development of technology. ”

The aforementioned A-D converter IC is the United States a semiconductor company recently put into operation of new products, this product adopts a more energy efficient, driving voltage lower structure.

Products belonging to the new Δ Σ-A-D converter, you can save energy 30 percent. Aiming at the use of such medical ultrasonic instrument is image diagnostic equipment. Current ultrasonic diagnostic instrument to improve measurement accuracy, it is also promoting instruments of miniaturization, the A-D converter IC performance requirements are very strict. This not only promotes the development of A-D converter itself, but also brought the article mentioned at the beginning of the converter using the most sophisticated A-D architecture trends.

A-D converter voltage driver is also a great change in the trend

In fact, in the medical device with the most State-of-the-art electronic technology trends long before it has started.

But recently, with portable and hand held medical equipment, as well as high-definition image diagnosis of needs, this trend is accelerating.

In ultrasonic diagnosis and x-ray CT device will use A-D converter IC.

In ultrasonic diagnostic instrument, typically each at least 100 multiple channel A-D converter IC, IC heat is a big problem. If you take into account the thermal area will increase, backplane, which gave the instrument a miniature difficult. Conversely, if you have both energy and heating less A-D converter IC, it can realize the miniaturization diagnosis device and portable.

In order to achieve A-D converter, analog circuits for energy of the target, you need to do in the structure of large changes, this view in circuit design Institute also received great attention.

Analog circuit adopts the same with the digital circuit technology, the realization of micronized 1.0V following low voltage-driven. This makes it possible to implement analog circuits and digital circuits of mixed loading and reduce power consumption. Recently, bring 90nm and 65nm, etc before unthinkable micronized technology applied to the analog circuit case began to increase. Analog signal processing using technology and low-voltage driving micronized, this kind of "new generation simulation" concept has already occurred. This new generation of structure may in ultrasonic diagnostic instrument, medical image diagnosis device power.

In the field of medical devices is strictly required by the development of electronic technology, which in turn will give ordinary civil product benefits.

High precision and energy saving of analog IC course will give a tremendous audio-visual products. In the future, we will from multiple angles, the further concern medical instruments in the field of technology trends and application examples.

Portable blood pressure monitor after the next hot product: Pulse Oximeter (1)

As more and more people are beginning to recognize the seriousness of the health problems and the improvement of living standards, home use portable medical electronics market is experiencing rapid growth, such as a portable blood pressure monitor.

The next wave of growth in the hotspot will be blood glucose and blood oxygen meter, especially portable Pulse Oximeter, although still not universal, but the most growth potential, future market growth is expected to more than 40%.

Wuhan p oxygen pulse meter reference design Board.

In addition to blood pressure, heart rate, respiratory rate and temperature, pulse oximetry (PO) are considered at the 5th most key health indicators.

Hemoglobin (Hb) is an important component of blood cells, it is responsible for transporting oxygen from the lungs to the body of other organizations. Hemoglobin at any one time the amount of oxygen is called oxygen saturation. Oxygen saturation expressed as a percentage, it is the oxygen content of hemoglobin and hemoglobin oxygen carrying capacity. Oxygen saturation is a reflection of human respiratory function and oxygen content is normal and important physiological parameters, it is displayed whether the organizations we human health an important physiological parameters. Serious hypoxia can directly import asphyxia, shock and death and tragedy. In Europe and the United States and other developed countries, the monitoring of the oxygen, oxygen apparatus attaches considerable importance to the already high penetration rate.

Pulse Oximeter provides non-invasive way to measure the oxygen saturation of arterial hemoglobin or saturation.

Pulse Oximeter can also detect arterial pulsation, therefore can also be calculated and inform the patient's heart rate. Measurement of the Pulse Oximeter is in the blood of patients with arterial oxygen content of a medical device.

Oximeter application market is mainly divided into the following areas: the patient in first aid and transportation process, fire rescue, high-altitude flight must monitor blood oxygen, heart disease, hypertension, diabetes, especially the elderly will have respiratory problems, monitoring blood oxygen index can be a good idea of their respiratory, immune system is healthy, the saturation has become an ordinary family daily monitoring of vital physiological parameters; health care personnel in the wards and visits are also blood oxygen as will monitor the project, using the number of pressure over the stethoscope trend; respiratory diseases, especially long-term snoring, use ventilators and oxygen patients, in everyday life using the Oximeter to monitor therapy; outdoor getter, mountaineering enthusiast, sports persons in the movement to use Oximeter, know your own body and take the necessary protective measures.

ADI Asia Pacific medical Enterprise senior business manager Zhou Wen sheng

ADI Asia Pacific medical Enterprise senior business manager Zhou Wen sheng said: "the Oximeter application market will become more and more diversified: not just in the ward and physical examination, etc, but also more to the different forms of high quality and easy-to-use products to enter the personal home use.

We believe its market size, growth will be very significant. ”

At present, the clinic main two ways to detect and oxygen in the blood parameters: first, the invasive arterial blood gas analysis, that is, from the human body's blood vessel extraction, the use of blood gas Analyzer.

This approach not only to get the content of oxygen in the blood, also available blood electrolyte levels, and other biological information. Second, non-invasive detection of arterial oxygen saturation by Oximeter sensors in the finger (or ear). Detection principle based on the premises of the arterial blood, extraction by penetrating pulsatile attenuation of light out of the Exchange components to solution.

Tsinghua University School of Biomedical Engineering Professor Ding Haishu, blood gas analysis though can detect specific major vessels of oxygen saturation in the blood, to a certain extent, indirectly reflect the Organization of oxygenation, but it is not invasive means of real-time, continuous monitoring; fingertip pulse oximetry detection while non-invasive, but gives the arterial oxygen saturation is generally unable to reflect the human local tissue oxygenation.

Currently on the market, most of the Oximeter refers to the Pulse Oximeter-clip, its package providers mainly has following several: Wuhan Li Yuan, Austria microelectronics, TI, ADI, Freescale.

Means the Pulse Oximeter-clip is used to monitor patients ' blood oxygen saturation of non-intrusive instrument, it relies on pulse strength or pulsatile flow to be measured, monitored area must have good blood flow, and any block can result in measurement error.

Pulse Oximeter can also calculate the pulse frequency, so most of the Pulse Oximeter has this feature. Typical Pulse Oximeter measurement range is between 70%-100% saturation, while readings below 70% is not reliable.

Pulse Oximeter works based on the optical absorption during arterial pulse volume changes.

At visible red laser spectroscopy (660 NM) and IR (940 NM) of two alternating light irradiation test area (typically a fingertip or earlobe). In these fluctuations during absorption of light weight and blood oxygen content. Microprocessor calculates the absorption of these two spectral ratio and compares the result with the saturation of the existing memory lane, numerical tables so as to arrive at oxygen saturation.

Digital x-ray imaging for dental programme changes (2)

In conventional x-ray systems, each component signals recession consumes more than 60% of the original x-ray signal energy.

Therefore, only less than 40% of the original image information can be used to generate the image. By digital x-ray imaging to add digital detector, captured more than 80% of the original image information and use various tools to further improve the picture quality post-processing becomes possible. Digital x-ray imaging will provide diagnostic radiology what change? this article will introduce to you. Indirect conversion for indirect conversion, CCD output needs to be correlated double sampler (CDS). Signal level of reduction of voltage and image signal level through the analog front end (AFE) into digital data. AFE's sampling rate from CCD array of pixels and a frame rate decision. In addition, the AFE will calibration sensor error, such as an undercurrent correction, offset voltage and defective pixels. Programmable gain amplifier (PGA) of existence, the PGA of linearity and gain range available is also very important, depending on the signal level. In the digital process, the digits will decide the contrast of the image. Usually, you need to set the initial data for accuracy than the ultimate digital image required digits high 2 to 4 bits of data. Therefore, if you need an 8-bit data of the final image, you first should be a 10-bit digitization to allow image processing rounding errors occur. The main image quality metrics is a "quantum detection efficiency" (DQE), it combines contrast and SNR (signal to noise ratio), a percentage represents. Contrast ratio is higher and the lower the noise, the higher the DQE. Contrast is the order of grayscale, it depends on the output resolution ADC; typically, 14-bit or 16-bit comparison suitable applications. SNR directs not only originate from ADC's SNR, and is the system of SNR, which is protected by x-ray dose, pixel size and impact of all electronic components. You can increase the x-ray dose and increase the photodiode spacing and electrical noise reduction to improve the SNR. Increased x-ray dose will have on patients or operator. Increase the photodiode space does not work, because doing so would decrease the spatial resolution. Decrease from the noise in the system for electronic devices will be the main challenges. System total noise is: all the noise on the signal chain of the square root of the composition (assumptions these noise component does not have an associated). This means including ADC, operational amplifier and benchmarks, all the parts must have a very low noise or severe filtering (if applicable). Temperature stability is another major challenge. The power consumption of the internal temperature rise may offset gray levels and make the image distortion, dynamic acquisition process. Therefore, the ADC, operational amplifier and benchmarks should have high temperature stability.

CMOS image channel in the application of ultrasonic equipment (1)

Summary: this article describes a CMOS image channel for image transmission of portable ultrasonic equipment control system.

System based on the ARM 32-bit microprocessors and embedded Linux operating system, completed the diagnostic images in CMOS image channels of transmission and processing for diagnostic images real-time display and large capacity non-volatile storage. Build a diagnostic instrument not only powerful, extended easily, but also take into account the requirements miniaturization.

1 Introduction

As medical diagnostic apparatus miniaturization, the process of portable, high-performance 32-bit microprocessors are increasingly applied to all kinds of small medical imaging equipment, but how to leverage these microprocessors and real-time image processing, it is a question of the assistants to be resolved.

Starting from ARM 7 series, ARM processors that integrates CMOS (Complementary Metal Oxide SemiConductor) image sensor interface, to address this problem provides possible. Processor can use CMOS image sensor interface adapts to different CMOS image sensor. By CMOS interface, image data will be fed into the system CMOS image channels. CMOS image channel for CMOS image sensor interface and system AHB (Advanced High peRFormanceBus) bus connection pathway, CSI (CMOS Sensor Interface) and PRP (Pre-Processor). The channel is designed for high speed image transmission, offers a variety of image formats for input and transmission and channel within a color space conversion, forms, adjustment, and other operations that are diagnostic images, as well as other image transmission ideal channel.

This article discusses an approach based on 32-bit microprocessor ARM9E and embedded Linux portable ultrasonic equipment solutions.

System CMOS image channel for the transport of diagnostic network like channel acquisition of ultrasonic image information sent one system bus, the embedded operating system platforms, Ijnux enables real-time display of diagnostic images and static images of large capacity non-volatile storage, the realization of the diagnostic system not only powerful, extended easily, but also take into account the requirements miniaturization.

2 system architecture

This design of portable ultrasonic equipment system structure as shown in Figure l.

User input device to enter the control command system, the complete collection of ultrasound images, display, save, etc. When performing a scan command system through the serial port to the FPGA to the core of the ultrasound image acquisition module to send image acquisition command, control of ultrasonic probes scan driver circuit and signal transmitter receiver synchronization actions. Receiving of ultrasonic signal in ultrasound image capture module has been enlarged, ADC evacuations of people complete FPGA, digital scan converter (DCS) and interpolation, been two-dimensional ultrasound image information. The image information to format the converted through ARM chip CMOS received 13 control system sending the image channel transport, completed in LCD (Liquid Crystal Display) on the real-time display, and a detachable large-capacity SD (Secure Digital Memory Card) card available on the desired image to save it. Save the image information can be performed off-line processing, such as printing, film playback, remote viewing, etc.

3 system hardware design

3.1 hardware diagram

This design choice to ARM926EJ-S for Freescale i.MX21 kernel as the processor, the control system hardware box ya as shown in Figure 2, the system is based on the ARM processor core, plus compatible hardware peripherals.

Ultrasonic acquisition modules complete the image acquisition and transmission from the incoming, LCD image information real-time display, SD card to a large number of image data saved for later processing. Pass Plus USB HUB. The mouse, keyboard, printer access system. Local storage of image data can be controlled via a fast Ethernet network processor, fed through DM9000 Ethernet remote browsing.

3.2 CMOS image channel

This control system CMOS image channel block diagram shown in Figure 3, the ultrasound image data of incoming use i.MX21 chip CMOS image sensor interface.

This interface supports image data types are RGB565, RGB888, YUV422, YUV444, etc. Different types of image data in CMOS mouth after CSI 8-bit sampling, packaged as a 32-bit image data sent people CSI RxFIFO. CSI RxFIFO in image data according to the type of the display, and storage hardware and software implementation is different.