Surgery – Diagnostic testing – Measuring or detecting nonradioactive constituent of body...
Patent
1996-05-02
1998-08-18
Cohen, Lee S.
Surgery
Diagnostic testing
Measuring or detecting nonradioactive constituent of body...
600310, 600322, A61B 500
Patent
active
057952922
ABSTRACT:
A method of conducting clinical examination procedures by use of electrically actuated spectrometric apparatus, of the type which uses a sensor that is placed in contact with the patient to transmit and receive electromagnetic energy of selected wavelengths for non-invasive in vivo examination of a selected area on the body, in which a conductive member is placed in contact with the patient near or at the location of the sensor and connected to the signal-processing circuitry of the processor for the spectrometric signals in a manner such that the examination signals have significantly less noise content than would otherwise be true. In so doing, the signal-processing circuitry is isolated from the power supply circuitry, and the sensor and conductive member are preferably coupled to the processor by use of an isolation preamplifier, such that the signal-processing ground potential reference is maintained separate and distinct from the power supply ground. The specially-grounded conductive member that is placed in contact with the patient is preferably made part of the sensor itself, as by using a conductive material on at least part of the sensor surface that is placed in contact with the patient, and such a conductive surface element may comprise a flexible outer coating or layer of a compliant sensor which is conformable to the shape of the patient extremity to which it is applied. In this manner, the surface potential of the patient at the location of the sensor may be equalized with that of the signal-processing circuitry ground potential to substantially reduce signal noise content, and ambient sources of electrical noise may be effectively shielded as well.
REFERENCES:
patent: 2790438 (1957-04-01), Taplin et al.
patent: 3230951 (1966-01-01), Teschner
patent: 3602213 (1971-08-01), Howell et al.
patent: 3769974 (1973-11-01), Smart et al.
patent: 3810460 (1974-05-01), Van Nie
patent: 3814081 (1974-06-01), Mori
patent: 3822695 (1974-07-01), Takayama
patent: 3910701 (1975-10-01), Henderson et al.
patent: 4013067 (1977-03-01), Kresse et al.
patent: 4015595 (1977-04-01), Benjamin, Jr.
patent: 4063551 (1977-12-01), Sweeney
patent: 4091803 (1978-05-01), Pinder
patent: 4109643 (1978-08-01), Bond et al.
patent: 4163447 (1979-08-01), Orr
patent: 4223680 (1980-09-01), Jobsis
patent: 4249540 (1981-02-01), Koyama et al.
patent: 4259963 (1981-04-01), Huch
patent: 4267844 (1981-05-01), Yamanishi
patent: 4281645 (1981-08-01), Jobsis
patent: 4321930 (1982-03-01), Jobsis et al.
patent: 4332258 (1982-06-01), Arai et al.
patent: 4336809 (1982-06-01), Clark
patent: 4344438 (1982-08-01), Schultz
patent: 4350163 (1982-09-01), Ford, Jr. et al.
patent: 4380240 (1983-04-01), Jobsis et al.
patent: 4510938 (1985-04-01), Jobsis et al.
patent: 4515165 (1985-05-01), Carroll
patent: 4570638 (1986-02-01), Stoddart et al.
patent: 4685464 (1987-08-01), Goldberger et al.
patent: 4763660 (1988-08-01), Kroll et al.
patent: 4770179 (1988-09-01), New, Jr. et al.
patent: 4805623 (1989-02-01), Jobsis
patent: 4819752 (1989-04-01), Zelin
patent: 4825872 (1989-05-01), Tan et al.
patent: 4825879 (1989-05-01), Tan et al.
patent: 4830014 (1989-05-01), Goodman et al.
patent: 4840179 (1989-06-01), Ullrich
patent: 4865038 (1989-09-01), Rich et al.
patent: 4867557 (1989-09-01), Takatani et al.
patent: 4880304 (1989-11-01), Jaeb et al.
patent: 4928691 (1990-05-01), Nicolson et al.
patent: 4938218 (1990-07-01), Goodman et al.
patent: 4964408 (1990-10-01), Hink et al.
patent: 5057695 (1991-10-01), Hirao et al.
patent: 5080098 (1992-01-01), Willett et al.
patent: 5094240 (1992-03-01), Muz
patent: 5099842 (1992-03-01), Mannheimer et al.
patent: 5111817 (1992-05-01), Clark et al.
patent: 5139025 (1992-08-01), Lewis et al.
patent: 5140989 (1992-08-01), Lewis et al.
patent: 5188108 (1993-02-01), Secker
patent: 5209230 (1993-05-01), Swedlow et al.
patent: 5217013 (1993-06-01), Lewis et al.
patent: 5226417 (1993-07-01), Swedlow et al.
patent: 5299572 (1994-04-01), Chen et al.
patent: 5349961 (1994-09-01), Stoddart et al.
patent: 5465714 (1995-11-01), Scheuing
patent: 5477853 (1995-12-01), Farkas et al.
patent: 5482034 (1996-01-01), Lewis et al.
Gonopolskiy Oleg
Lewis Gary D.
Messing Wayne P.
Scheuing Richard S.
Cohen Lee S.
Somanetics Corporation
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