tailieunhanh - Digivance® ICS For Healthcare Applications

Studies have shown that radiation from cell phones has the potential to interfere with cardiopulmonary monitoring devices, and in some cases may even cause malfunction of patient ventilators1. Such evidence would seem to indicate that cell phones constitute a significant risk to patient health and safety, warranting their ban from hospital facilities. But many of the same hospitals that are banning cell phones are, at the same time, bringing more and more wireless equipment into the hospital environment. Wireless Local Area Networks (LANs) are being installed at a rapid rate. The mobile access to medical records provided by wireless LANs is being touted for its benefits to patients,. | Digivance ICS For Healthcare Applications WHITE PAPER Digivance ICS For Healthcare Applications Wireless in Hospitals - Good or Bad As you enter most hospitals it is very likely that you will be greeted with a sign looking something like this For patient safety the use of cellular phones is not permitted while inside hospital buildings. Studies have shown that radiation from cell phones has the potential to interfere with cardiopulmonary monitoring devices and in some cases may even cause malfunction of patient ventilators1. Such evidence would seem to indicate that cell phones constitute a significant risk to patient health and safety warranting their ban from hospital facilities. But many of the same hospitals that are banning cell phones are at the same time bringing more and more wireless equipment into the hospital environment. Wireless Local Area Networks LANs are being installed at a rapid rate. The mobile access to medical records provided by wireless LANs is being touted for its benefits to patients in articles with titles such as Wireless LANs Just What the Doctor Ordered 2 and Wireless Is the Healthy Choice 3. In addition to network access at the nurse s station such wireless systems often include mobile voice handset coverage throughout the building4. What is the Difference So why are wireless LANs being installed at the same time cell phones are being banned Why can t I use my cell phone when I see hospital personnel roaming the corridors talking on theirs It s all a matter of POWER. With wireless LANs and local wireless phone systems fixed antennas are distributed throughout the building. The distance from a laptop computer or wireless handset to the nearest antenna may be only a hundred feet or less. Such distances can easily be spanned with transmit powers of 20 milliWatts mW or less. 1Tri Jeffrey L. David L. Hayes and Rodney P Severson. Cellular Phone Interference With External Cardiopulmonary Monitoring Devices Mayo Clinic Proceedings v76 1 01. .