Biophysical sensor

Surgery – Diagnostic testing – Cardiovascular

Reexamination Certificate

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Reexamination Certificate

active

06988993

ABSTRACT:
A biophysical sensor including a sound vibration sensing element (12) to produce a sensed output, and two or more separate signal processing paths to process the sensed outputs to produce output signals. The output signals may reflect specific frequency bands within the raw biological signal. In a further aspect the invention concerns an electronic stethoscope in which the sound vibration sensing element (12) is a PVDF membrane, the signal processing involves an operational amplifier (OP amp) (10) connected to the PVDF membrane, and a unity gain buffer amplifier is connected to the output of the OP amp to allow the connection of headphones directly to the sensor output.

REFERENCES:
patent: 4577510 (1986-03-01), Bur et al.
patent: 4598417 (1986-07-01), Deno et al.
patent: 5213108 (1993-05-01), Bredsen et al.
patent: 5311875 (1994-05-01), Stasz
patent: 5479932 (1996-01-01), Higgins et al.
patent: 5494043 (1996-02-01), O'Sullivan et al.
patent: 5649535 (1997-07-01), Voith
patent: 6353324 (2002-03-01), Uber et al.
patent: 6443905 (2002-09-01), Nissila et al.
patent: 6547743 (2003-04-01), Brydon
patent: 38 04 616 (1989-08-01), None
patent: 196 13 261 (1997-01-01), None
patent: WO 97/03600 (1997-02-01), None
patent: WO 99/53277 (1999-10-01), None
Supplementary European Search report in European Application No. EP 01 94 2906 (counterpart of this application).

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