Surgery – Truss – Pad
Patent
1987-09-28
1989-02-14
Jaworski, Francis J.
Surgery
Truss
Pad
128696, 128715, A61B 504
Patent
active
048039969
ABSTRACT:
A cardiovascular monitor having improved safety features and data transmission ability. Sensing devices placed on a patient's body, such as electrocardiogram electrodes and phonocardiogram microphones, are electrically isolated from the data recorder and AC powerline, thereby protecting the patient from dangerously high voltages existing in the recorder and the external power source. Isolation amplifiers are employed in the signal conditioning circuitry at the front end of the recorder. Special isolation transformers are also used to prevent ground loop currents between the signal conditioner and the recorder thus minimizing noise due to powerline leakage. Similarly, isolation amplifiers are used during the playback mode between the recorder and a data processor to avoid ground loop currents between the recorder and the processor.
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Converse Merle E.
McGinnis William H.
Peel H. Herbert
Prudhomme John P.
Shirley Donald J.
Jaworski Francis J.
Manuel George
Nippon Colin Co., Ltd.
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