Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1997-08-07
1999-05-04
Kamm, William E.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
A61N 139
Patent
active
058999256
ABSTRACT:
A method and circuit are described for automatically testing various components of a defibrillator at random or otherwise aperiodic time intervals. A random number is generated that falls within a range of numbers corresponding to minimum and maximum acceptable time intervals between successive testing of the defibrillator. Ambient conditions can be measured and the acceptable range of numbers adjusted accordingly. High energy test procedures may be performed less frequently, as appropriate for the measured ambient conditions. The range of numbers can also be adjusted to provide greater frequency testing where desirable, such as following a use of the defibrillator, following a repair of the defibrillator, to detect infant mortality effects, or to detect wear-out effects. The defibrillator includes a testing circuit for testing the various other components. The testing circuit includes a controller coupled with a timer, a random number generator, a memory, and an ambient condition sensor.
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Product Brochure from "Vivalink AED Automatic External Defibrillator System" by Survivalink Corporation.
Morgan Carlton B.
Ochs Dennis E.
Heartstream, Inc.
Kamm William E.
Layno Carl H.
Snyder Cecily Anne
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