New directions-wuxianhua hospital in technical analysis in wireless networks

Hospitals are paperless, no film and wuxianhua.

Wuxianhua in traditional medical wireless applications (such as wireless medical telemetry, etc.), there is a new development. Wireless data applications, such as moving rounds and mobile bedside nursing, is based on quality management, clinical information system (LIS, PACS, EMR, etc) developed on the basis of the new application mode, gradually become clinically important components of a business process.

Wireless coverage method

WLAN in the medical industry most often uses the following three types of wireless coverage, i.e. normal AP, wireless switch and WLAN indoor signal distribution system.

Ordinary AP in earlier times was part of the hospital to try, but because their existence does not facilitate centralized management, signal coverage is not optimal, roaming zapping large and many other issues, the mass adoption of common AP coverage of hospital has very little.

Wireless switch for the convenience of centralized management and AP zero configuration, indoor distribution system to the ward roaming zero time delay and nearly perfect coverage of the advantages of becoming a medical profession substantial use of two wireless system.

Wireless switch system screen in addition to AP-based transmission platform of the traditional method, which uses a background Center switch + thin access point mode, it will be a wireless switch on the user's computer lab, a data processing and AP Management Center, which will be several similar to antenna features AP (commonly known as thin, AP, some manufacturers still use FAT AP) placed at the front end, so that all management and data processing is set to function more powerful wireless switch.

The wireless switch is the most obvious advantage: centralized intelligence management; more efficient wireless security policy management.

Indoor signal distribution system, on a per device generally consists of a base station, a feeder, multiple antennas, power points and couplers, multi-channel device central management control by the controller.

Base station signal combiner, bi-directional magnification, signal processing, through a signal output, the output to be reactive, coupling, feeder, antenna composed of signal distribution system. Mobile terminals in the same way WLAN signal distribution system under mobile, always with good connection to the base station, in a move to always maintain high bandwidth and low latency, no AP to switch between the various problems posed. Indoor signal distribution system, in addition to the base station, composed mainly by passive devices, their run ambient requirements durables, not out of trouble, Basic does not require maintenance.

Tips: the selection of proposals

Wireless switch technology's main advantages: AP unified management configuration, thin AP-end even can do zero-configuration, all configuration information in the wireless switch on your controller, you can significantly reduce the workload of the AP configuration; the wireless client's centralized authentication; AP of placement flexibility, easy wiring.

Disadvantage: requires significant AP coverage of local, channel allocation is a difficult issue, easily lead to channel interference; signal strength and coverage of AP roaming toggle between also need further improvement.

Indoor distribution system advantages: less occupied channel, a small Wireless interference; secure wireless signal strength; no roaming toggle; post-maintenance simpler.

The disadvantage is: single set of equipment shared bandwidth, theoretical bandwidth value smaller; equipment room is individual, unified authentication also requires a central controller; wiring is too much trouble.

Application for a hospital environment, it is recommended that you compare the open area using the wireless switch to overwrite, or two AP to complete coverage, building costs are low, such as: infusion room, ICU, etc.

In the rooms, partition more densely populated areas, the use of the indoor distribution system to cover, such as: Ward wards, operating rooms.

Main application fields

Mobile doctor workstation.

Mobile doctor workstation according to the patient bedside information requirements development. Mobile doctor workstation, the doctor can move between each ward rounds; the situation can be round, history and clinical examination, immediate consultations and treatment options, you can lookup the bedside patient medical records and Imaging. Doctors can also rounds, timely information in the computer, and according to the severity of the change immediately out of the inspection, examination, treatment and other orders, avoiding the rounds again go copy orders or medical orders supplement on memory, records, resulting in duplication of course even error conditions occur. Combining clinical knowledge base, drug incompatibility warning system, doctors in the hospital patients bedside can timely correction orders, and adoption of reasonable drug for the treatment, minimize the occurrence of the error.

Mobile nurse workstation.

Nurses can bedside real-time view of the patient's basic information, signs information, real-time implementation of medical orders; bedside tizheng information collection; orders in accordance with clinical path is split, the auto-remind the nurses should execute orders of flights; real-time logging implementation of medical orders, track the life cycle of medical orders; the level of patient care, surgery, and other information, automatically remind the nurses when should measure the patient's body temperature, blood pressure, weight, and other information; view a patient's examination, laboratory reservation information; automatic statistics intake and output, and so on.

Outpatient transfusion management.

Mobile technology not only in the rooms was very well apply, in the outpatient transfusion management could also play a great role. Outpatient transfusion management bar code technology, wireless networking and mobile technology really introduced hospital process management, realization and hospital business processes directly binding, through process reengineering, reducing the error rate and improve efficiency. For a hospital of the entire management process, the transformation of outpatient infusion process is local, as long as you have drug management information can use outpatient infusion system.

Outpatient infusion system enables nurses to patients ' identities and accurate drug barcode check, at the right time, right place at the turn of a timely response to patients, as well as on disposal information for accurate recording.

The same is, this system can also be made in respect of the patient's needs in a timely response, improves patient satisfaction, make a doctor hospital services more user-friendly.

Patient identity and drug labeling

S. The wireless networks, mobile computing, mobile data terminal (EDA) and bar code and other technologies to address patient and medication reconciliation problems of recognition and to eliminate medication errors in patients. At the bedside, nurses use wireless identification equipment, scan the bar code identification of patients with wrist strap band and infusion, on the identity of the patient, medication, dosage and method and other details will pass the WLAN is confirmed in the nurses ' station. The release of substances, infusion, screening, treatment and emergency care, surgery, if there are any differences, the alarm system will display a warning to avoid any errors that may occur.

Tips: effect of mobile workstation

Mobile Clinical Workstation application completely resolved in which occur where entry of information, reduce reliance on paper.

So whether it is increasing productivity or improve the quality of health care and reducing medical errors are very meaningful, and effective in many ways. One is to help nurses properly executed orders; second, the whole process of tracking medical services; the third is for health care personnel performance evaluation provides an objective basis. Its fundamental purpose is to reduce the error rate, improve the quality of medical services, patient-centered this core principle. Hospital treatment process if you want a thorough optimization, the actual realization of the "paperless and no movie", it is necessary to implement mobile clinical workstation.

Mobile Clinical Workstation these characteristics make it in the hospital Informationization construction play an increasingly important role in the United States and Japan and other developed countries have more widespread use of mobile clinical workstation, this years mobile clinical workstation also received very good extension, such as General Hospital of Nanjing military district, Fuzhou, Zhejiang Shaw hospital, Wuxi city people's Hospital, the PLA General Hospital, 251, and so the hospital has implemented mobile doctors or nurses workstation, has also played a great role.

Special personnel management

Mother-infant pairs.

After birth the baby and mother respectively who wear a tabbed and wristband tag, and set a one-to-one match between. Health care workers to hold a baby back to mother Ward, the label does not match, a warning prompt appears.

Baby alarm.

In baby wear can emit radio frequency signals and harmless to the smart tag, at the same time in a hospital needs to control installation of wireless monitor network issue on RFID, wireless signal to receiver. So be on the infant's location for real-time monitoring and tracking, you can also conduct of attempted theft baby alarm time.

Special patient management.

On special patient groups for real-time position monitoring, patient access to danger zones or leaving a secure area will automatically alarm cues. Patients experiencing critical condition can instant alarm information, get help.

Asset management

The introduction of RFID management tracking technology to address fixed assets in kind-cards, cards-financial accounts in conformity with the problem.

Implementation of equipment inspection, quick access to maintenance records, equipment reliability warning. Perfection from the budget report, approval, purchasing, inventory, receiving, transferred to the inventory of electronic business processes and achieve a fixed transparent centralized and unified management.

Enables the Visual management of hospital supplies.

Through the use of RFID, wireless networks and EDA and other advanced technology, can real-time dynamic master inventory of materials and appropriate location, accounts for compatibility, the Visual management of goods.

Achieve the RFID application in the first aid equipment and mobile material management, implementation of the emergency cases on equipment and materials for rapid positioning to ensure emergency medical device when the need to immediately locate, avoid looking for medical equipment delayed rescue time patients, improving the ability of emergency protection.

Call communications

Formation of WLAN, hospitals can use voice over IP (VoIP) system to replace the traditional communication systems (such as calling station, etc.), implementation in the network to transmit voice and video data, provides two-way voice and video communication.

Health care workers can receive patients from a handheld device, the call directly and immediately understand patients with calls to patients ' needs, a number of critically ill patients so you can receive timely treatment and special care, doctors can WLAN voice system know some infectious isolated patients (e.g. SARS), the effective protection of the health and safety of health care professionals.

Care monitoring

Configure the wireless camera, you can implement WLAN-based video monitoring, free of cumbersome rewiring.

This technique can be used on the wards, pharmacies and other important places for the monitor. Wireless camera management software can simultaneously monitor multiple scene and in the monitoring center on site for video recording. Wireless video surveillance system in combination with the hospital's wireless communication system, staff receive patients ' paging signal, through the network to the computer terminal directly to the patient's current situation and take appropriate medical measures, monitoring of critical patients had an important role.

The above list is only part of the wireless network, as the expansion of the application, wireless networks will play an increasingly important role.