Activity sensors for implantable medical devices

Details Activity sensors for implantable medical devices Activity sensors for implantable medical devices

1994-04-04

1996-03-05

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

128642, G01P 1509, H01L 4104

Patent

active

054963524

ABSTRACT:
An implantable medical device including a piezoelectric accelerometer activity sensor. The activity sensor includes a thin film piezoelectric cell within a frame structure. A mass imposes a load based upon acceleration to apply lateral or transverse forces which cause the generation of an electrical potential within the piezoelectric cell, which can be used by a rate control algorithm within the device to control operation of the device.

REFERENCES:
patent: 5220836 (1993-06-01), Harms et al.

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