Surgery – Truss – Pad
Patent
1992-06-22
1993-03-30
Kamm, William E.
Surgery
Truss
Pad
128734, A61N 1368
Patent
active
051974673
ABSTRACT:
A metabolic demand rate-responsive cardiac stimulation apparatus and method are disclosed which employ multiple physiological rate control parameters, such as respiratory minute volume, patient motion and cardiac stroke volume. The parameters are derived using a single standard pacing lead or transducer. The apparatus and method perform each physiological measurement by periodically applying a measuring current between two points within the apparatus. This measuring current has frequency components in a range of from approximately 10 kilohertz to 1000 megahertz. Application of this measuring current allows the apparatus to detect the voltage which arises from the applied current and, from the detected voltage, to measure the patient's spatial impedance. For a particular measurement, the apparatus controls which physiological parameter is sensed by regulating the frequency content of the measuring current. The apparatus analyzes the physiological parameters to determine the best pacing rate in terms of characteristics such as response time and stability.
REFERENCES:
patent: 4140132 (1979-02-01), Nappholz et al.
patent: 4428378 (1984-01-01), Anderson et al.
patent: 4535774 (1985-08-01), Olson
patent: 4567892 (1986-02-01), Plicchi et al.
patent: 4692719 (1987-09-01), Whigham
patent: 4702253 (1987-10-01), Nappholz et al.
patent: 4721110 (1988-01-01), Lampadius
patent: 4860751 (1989-08-01), Callaghan
patent: 4901725 (1990-02-01), Nappholz et al.
patent: 4919136 (1990-04-01), Alt
patent: 4926863 (1990-05-01), Alt
patent: 5003976 (1991-04-01), Alt
patent: 5063937 (1991-11-01), Ezenwa et al.
Koestner Ken
Morris Robert A.
Nappholz Tibor A.
Nolan James A.
Steinhaus Bruce M.
Kamm William E.
Manuel George
Telectronics Pacing Systems Inc.
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