Systems and methods used to reserve a constant battery capacity

Details Systems and methods used to reserve a constant battery capacity Systems and methods used to reserve a constant battery capacity

2005-05-26

2008-11-11

Getzow, Scott M (Department: 3762)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

Reexamination Certificate

active

07450991

ABSTRACT:
Techniques are disclosed which provide a substantially constant battery reserve capacity with respect to therapeutic medical devices. Accordingly, a battery control system may be operable to maintain a substantially constant reserve capacity throughout the life of the battery. The battery reserve capacity activation threshold may be set and continuously or periodically updated so that a battery's remaining capacity equals the predetermined reserve capacity when the measured parameter reaches the activation threshold, thereby allowing a maximum amount of a battery's total capacity to be employed for therapeutic use and reserve only that portion of that capacity determined to provide for a desired level and/or period of device function after reaching the reserve threshold.

REFERENCES:
patent: 4692145 (1987-09-01), Weyant et al.
patent: 6553263 (2003-04-01), Meadows et al.
patent: 2002/0115939 (2002-08-01), Mulligan et al.
patent: 2003/0065370 (2003-04-01), Lebel et al.
patent: 1 250 944 (2002-10-01), None
patent: WO 98/54811 (1998-12-01), None
European Search Report issued for EP 05011432.1-2007 dated Nov. 16, 2005.

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