The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 13, 1976
Filed:
Aug. 01, 1974
Applicant:
Inventor:
Thomas L Jirak, Plymouth, MN (US);
Assignee:
Medtronic, Inc., Minneapolis, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61N / ;
U.S. Cl.
CPC ...
1284 / ; 1284 / ;
Abstract
In a cardiac pacer including a source of timed pulses and means responsive to the timed pulses for providing controlled energy cardiac stimulating pulses, the improved apparatus including means for successively decreasing the energy of the cardiac stimulating pulses after every n pulses from the timed pulse source, n being a number greater than 1. The apparatus may also include means for increasing the energy of the cardiac stimulating pulses in the absence of a driven heartbeat and, in a preferred embodiment, may include additional apparatus to prevent loss of a heartbeat on loss of capture.