Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1996-10-16
1998-08-25
Kamm, William E.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
323234, A61N 108
Patent
active
057979642
ABSTRACT:
A continuous cardiac output monitor includes a general-purpose monitoring console with local display and communication facilities, and a module removably interfacing with the console to configure the latter for performing continuous cardiac output monitoring. The module includes a switch-mode high efficiency power amplifier for providing electrical heating power at a selected voltage, frequency, and wave form to a heating element of a continuous cardiac output monitoring catheter, which catheter at a distal end portion thereof is immersed in the blood flow of a patient. The catheter effects a temperature transient in the patient's blood flow by the controlled application of electrical resistance heating utilizing electrical power from the power amplifier, and this temperature transient is sensed and used to derive a value for the patient's cardiac output.
REFERENCES:
patent: 3614589 (1971-10-01), Ireland et al.
patent: 3638656 (1972-02-01), Grandjean et al.
patent: 4004576 (1977-01-01), Gahwiler et al.
patent: 4140433 (1979-02-01), Kastrubin et al.
patent: 4216462 (1980-08-01), McGrath et al.
patent: 4317165 (1982-02-01), Sullivan
patent: 4448202 (1984-05-01), Wajszczuk et al.
patent: 4467813 (1984-08-01), Schomburg
patent: 4507974 (1985-04-01), Yelderman
patent: 4574342 (1986-03-01), Runyan
patent: 4677986 (1987-07-01), DeCote, Jr.
patent: 4728881 (1988-03-01), Evans et al.
patent: 4912394 (1990-03-01), Sugimoto et al.
patent: 4951682 (1990-08-01), Petre
patent: 5003983 (1991-04-01), Dingwall et al.
patent: 5003991 (1991-04-01), Takayama et al.
patent: 5014284 (1991-05-01), Langer et al.
patent: 5056526 (1991-10-01), Khalil
patent: 5089768 (1992-02-01), Sato
patent: 5146414 (1992-09-01), McKown et al.
patent: 5229712 (1993-07-01), Thornton
patent: 5242440 (1993-09-01), Shippert
patent: 5304206 (1994-04-01), Baker, Jr. et al.
patent: 5305760 (1994-04-01), McKown et al.
patent: 5342356 (1994-08-01), Ellman et al.
patent: 5366483 (1994-11-01), Sadkhin
patent: 5588438 (1996-12-01), McKown et al.
B. Ross, M. Hoke, Preamplifier with Digitally Controlled Automatic Offset Compensation Circuit for Physiological Applications, Scand. Audio. Suppl. 11, 1980.
Carlson Gary
Norris Jeffrey A.
Baxter International Inc.
Canter Bruce
Cumberbatch Guy
Kamm William E.
Satermo Eric
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