Patent ID: 6267723
Filing Date: 2001-07-31
Classification: A61B,Y10S

Abstract:
A medical telemetry system comprising:a sensor device comprising;a sensor unit detecting a biomedical signal;first detecting means for detecting a state of said sensor unit in which said sensor unit cannot detect the biomedical signal, and for outputting an undetectable state signal indicative of the state; andtransmitting means for transmitting the undetectable state signal and the biomedical signal in the form of a radio signal;a receiver adapted to be interchangeable connected to a plurality of various monitoring devices, said receiver comprising;receiving means for receiving the radio signal transmitted from said sensor device;second detecting means for detecting the undetectable state signal, and for outputting an alarm signal when the undetectable state signal is detected; andconnecting means for supplying the biomedical signal of the received radio signal and the alarm signal to a signal input portion of one of said plurality of various monitoring devices;wherein said second detecting means comprises a variable impedance switching device for varying an impedance to an output of said connecting means when the undetectable state signal is detected.