Tri J L, Hayes D L, Smith T T, Severson R P
Telecommunications and Mobile Services, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA.
Mayo Clin Proc. 2001 Jan;76(1):11-5. doi: 10.4065/76.1.11.
To determine the potential effect (electromagnetic interference) of cellular telephones on external cardiopulmonary monitoring devices.
For this study, we tested 17 different medical devices with 5 portable telephones (4 digital, 1 analog) to assess the potential for electromagnetic interference. The telephones were tested in a normal operating mode to simulate a typical hospital environment with patients or their families using their cellular phones. The medical devices were connected to the appropriate simulators for proper operation while the tests were under way. The screens and alarms of the medical devices were monitored while the telephones were maneuvered in the y and z planes near the devices. Clinically important interference was defined as interference that may hinder interpretation of the data or cause the equipment to malfunction.
Any type of interference occurred in 7 (41%) of the 17 devices tested during 54.7% of the 526 tests. The incidence of clinically important interference was 7.4%.
Cellular telephones may interfere with the operation of external cardiopulmonary monitoring devices. However, most of the test results showed that the interference would rarely be clinically important.
确定移动电话对体外心肺监测设备的潜在影响（电磁干扰）。
在本研究中，我们用5部便携式电话（4部数字电话，1部模拟电话）对17种不同的医疗设备进行测试，以评估电磁干扰的可能性。电话在正常工作模式下进行测试，以模拟患者或其家属使用移动电话的典型医院环境。在测试过程中，医疗设备连接到适当的模拟器以确保正常运行。当电话在设备附近的y和z平面内移动时，对医疗设备的屏幕和警报进行监测。具有临床意义的干扰被定义为可能妨碍数据解读或导致设备故障的干扰。
在526次测试中的54.7%期间，17种受试设备中有7种（41%）出现了任何类型的干扰。具有临床意义的干扰发生率为7.4%。
移动电话可能会干扰体外心肺监测设备的运行。然而，大多数测试结果表明，这种干扰在临床上很少具有重要意义。
