Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1998-04-14
1999-12-07
Kamm, William E.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
A61N 1365
Patent
active
059998547
ABSTRACT:
A cardiac pacemaker includes circuitry which receives a raw impedance signal from the sensor leads of the pacemaker, derives data from the impedance signal that is descriptive of the impedance signal over an entire (or a large part of the) cardiac cycle, develops first order parameters which define that cycle, and provides these parameters to a microprocessor for control of the pacing signal. These parameters may also be used to determine other information about the functioning of the pacemaker. The present invention may also be applied to the determination of tachycardia of an intrinsically paced heart, as well as other applications.
REFERENCES:
patent: 4773401 (1988-09-01), Citak et al.
patent: 5235976 (1993-08-01), Spinelli
Deno D. Curtis
Pergola Nicholas F.
Sterling Daniel I.
Vautravers Alec
Intermedics Inc.
Kamm William E.
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