TEMPORARY POWER SUPPLY FOR A HEART-STIMULATING DEVICE
First Claim
1. In an improved external heart-stimulating device which includes electrode meas for connection to the heart of a patient, pulse generator means for generating heart stimulating impulses on said electrode means, at least one removable battery for powering said device, and non-removable battery-output terminals for conducting output from said at least one removable battery to said device, the improvement comprising capacitive means permanently connected to said battery-output terminals for charging in response to the voltage of said at least one removable battery, said capacitive means providing temporary voltage to said device initially at a final voltage level of said at least one removable battery when said at least one removable battery is removed, said capacitive means decreasing said temporary voltage from said final voltage level and maintaining said temporary voltage above a minimum voltage level during a predetermined time.
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Accused Products
Abstract
A temporary power supply for a heart-stimulating device. Apparatus is disclosed that provides temporary power to a battery-powered pacer during the time of battery replacement. In an illustrative embodiment of the invention, a capacitor circuit is used for this purpose.
12 Citations
3 Claims
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1. In an improved external heart-stimulating device which includes electrode meas for connection to the heart of a patient, pulse generator means for generating heart stimulating impulses on said electrode means, at least one removable battery for powering said device, and non-removable battery-output terminals for conducting output from said at least one removable battery to said device, the improvement comprising capacitive means permanently connected to said battery-output terminals for charging in response to the voltage of said at least one removable battery, said capacitive means providing temporary voltage to said device initially at a final voltage level of said at least one removable battery when said at least one removable battery is removed, said capacitive means decreasing said temporary voltage from said final voltage level and maintaining said temporary voltage above a minimum voltage level during a predetermined time.
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2. The improvement of claim 1 and wherein said at least one removable battery includes a plurality of single cells connected in series, where at least one cell of said plurality is removable.
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3. The improvement of claim 1 and wherein said capacitive means is at least one capacitor.
Specification
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- Resources
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Current AssigneeHerbert E. Goldberg, Richard F. Daynard, Robert L. Cannon, Sherwood S. Thaler
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Original AssigneeHerbert E. Goldberg, Richard F. Daynard, Robert L. Cannon, Sherwood S. Thaler
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InventorsCannon, Robert L., Goldberg, Herbert E., Thaler, Sherwood S., Daynard, Richard F.
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Primary Examiner(s)Kamm, William E.
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Application NumberUS05/173,091Time in Patent Office754 DaysField of Search128/419P,419R,421,422 307/64,65,66US Class Current607/9CPC Class CodesA61N 1/378 Electrical supplyG06G 1/0052 for air navigation or sea n...
