Surgery – Truss – Pad
Patent
1982-04-30
1985-06-04
Cohen, Lee S.
Surgery
Truss
Pad
A61N 136
Patent
active
045208255
ABSTRACT:
A circuit for causing the gradual turn-on of electrical tissue stimulation in a digitally controlled stimulator is disclosed. A stimulation pulse counter and a pulses per step memory circuit are connected to a decoder to provide an amplitude incrementing signal after a presettable count of stimulation pulses. An amplitude counter receives the incrementing signal to increment the amplitude of the stimulation output pulse through a digital to analog converter circuit and to reset the pulse counter. A maximum amplitude memory circuit and decoder operate in conjunction with the amplitude counter to latch the counter when a preset pulse amplitude is obtained. At the end of a stimulation interval, the amplitude counter is reset and stimulation pulses begin at the minimum amplitude at the start of the next stimulation interval.
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Harrington Richard J.
Roline Glenn M.
Thompson David L.
Cohen Lee S.
Medtronic Inc.
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