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:
Oct. 22, 1985
Filed:
Jun. 25, 1984
Willis A Tacker, Jr, West Lafayette, IN (US);
Joe D Bourland, West Lafayette, IN (US);
Charles F Babbs, West Lafayette, IN (US);
Leslie A Geddes, West Lafayette, IN (US);
Purdue Research Foundation, West Lafayette, IN (US);
Abstract
A method of controlling cardiac ventricular fibrillation and other tachyarrhythmias by delivery of two time-separated current pulses to separate pairs of electrodes spatially placed in, around, or on the heart. The technique produces a temporal and spatial summation of the delivered current, which results in a dramatic reduction in the voltage, current, and energy required for defibrillation, or cardioversion, and allows the use of a smaller implantable pulse generator. The new system achieves a more uniform distribution of current within the ventricular myocardium, thereby reducing the risk of tissue damage and increasing the margin of safety between effective shocks and myocardial depressing or damaging shocks.