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:
Sep. 21, 1976
Filed:
Dec. 23, 1974
Robert Lee Cannon, Waltham, MA (US);
American Optical Corporation, Southbridge, MA (US);
Abstract
A patient stimulating pacer electrode for use with heart pacers or other like devices. The electrode is constructed in a porous manner to have large surface area to reduce polarization losses while simultaneously having small overall dimensions for increasing stimulation current density and its ability to stimulate. Electrically conductive powdered metal is subjected to a sintering process to produce a porous conductive structure which is employed as the electrode. Conductive fluid from within the patient's body flows into the interstices of the overall small-dimensioned porous conductive structure; the resulting fluid-structure interface comprises a large surface area thereby reducing polarization losses.