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:
Dec. 19, 1995
Filed:
May. 06, 1994
Mark T Stewart, Brooklyn Center, MN (US);
Mary M Morris, Mounds View, MN (US);
Edward Di Domenico, Anoka, MN (US);
Kenneth W Keeney, Forest Lake, MN (US);
Douglas R Hess, Maple Grove, MN (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
An implantable electrode type lead assembly of the flexible type which is particularly adapted for implantation in the cardiac tissue for applications such as use with a pacemaker. The lead assembly has an electrode head which includes a fixation spiral for implantation into tissue. The spiral or rotation action of the electrode head is controlled by means of an elongated torsionally wound electrical coil conductor, the coil extending through the lead from the proximal to the distal end thereof and carried within a silicone tube which is co-extensive therewith, the tube having been especially treated to modify the slip characteristics of the internal diameter (ID) thereof for high efficiency torque transfer.