Surgery – Truss – Pad
Patent
1975-08-28
1977-08-23
Kamm, William E.
Surgery
Truss
Pad
330 30P, A61N 136
Patent
active
040433471
ABSTRACT:
A demand pacer, such as a cardiac pacer for delivering cardiac stimulus pulses on demand, having an oscillator producing an output which is normally gated for delivery, a low current drain amplifier which is substantially insensitive to voltage source variations for amplifying received natural signals, and logic circuitry for performing a plurality of functions including resetting the oscillator following each received natural signal. In the absence of interference, reset of the oscillator is blocked for a refractory period following either a delivered stimulus pulse or a detected natural signal, and means are provided for inhibiting delivery of a stimulus signal at time of oscillator reset. Current source configurations are utilized for supplying power to the amplifier and logic portions, and the amplifiers are also interfaced into a current driver, which techniques contribute to extremely low power consumption and insensitivity to power supply variations.
REFERENCES:
patent: 3431912 (1969-03-01), Keller, Jr.
patent: 3523539 (1970-08-01), Lavezzo et al.
patent: 3656487 (1972-04-01), Gobeli
patent: 3661157 (1972-05-01), Fyson et al.
patent: 3669120 (1972-06-01), Nielsen
patent: 3792367 (1974-02-01), Fleischer et al.
patent: 3908667 (1975-09-01), Bernstein
Kamm William E.
Vitatron Medical B.V.
LandOfFree
Multiple-function demand pacer with low current drain does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multiple-function demand pacer with low current drain, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple-function demand pacer with low current drain will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2309684