Medical sensor with amplitude independent output

Details Medical sensor with amplitude independent output Medical sensor with amplitude independent output

1996-09-09

1999-10-05

Nasser, Robert L.

Surgery

Diagnostic testing

Measuring or detecting nonradioactive constituent of body...

600323, 600324, 600336, 600310, 356 41, A61B 500

Patent

active

059614501

ABSTRACT:
The present invention provides a medical sensor for detecting a blood characteristic. The sensor includes a transducer for producing an analog signal related to the blood characteristic. The analog signal is converted into a transmission signal which is in amplitude-independent form for transmission to a remote analyzer. In one embodiment, a current-to-frequency converter converts a signal from a pulse oximeter sensor into a frequency signal which can be transmitted over a transmission line to a remote pulse oximeter.

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