Doctors fear wireless internet killersAn Iphone killed my patienceBy Nick Farrell: Wednesday, 14 May 2008, 9:32 AMDOCTORS are getting concerned that the proposed use of unoccupied TV airwaves for high-speed Internet services could kill critically ill patients.The American Society of Healthcare Engineering, an arm of the American Hospital Association, claims that signals which monitor critically ill patients could be lost because of interference.The medical boffins say that using empty channels for unlicensed broadcsts could disrupt the monitoring of patients' heart rates, blood oxygen levels and other vital signs at hospitals.If the machines go down, even for a few seconds, doctors lose information on the patient's physiological condition. Sometimes the patient will croak because the healthcare gets too basic.Medical device maker GE Healthcare has asked the FCC to 'proceed carefully' when it permitted broadband through idle channels.Since the 1980s, hospitals have used channels 33 to 36 to operate unlicensed wireless patient-monitoring devices. Channel 37 has been set aside for exclusive use of medical-monitoring equipment.However some hospitals still use some of the other channels.