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:
Nov. 02, 2004
Filed:
Apr. 17, 2002
Thomas C. Bischoff, Minneapolis, MN (US);
Marc R. Helmick, Newton, MA (US);
Kathryn R. Parsons, Fridley, MN (US);
Bret R. Shoberg, Corcoran, MN (US);
George M. Huepenbecker, Vadnais Heights, MN (US);
Sandra F. Viktora, Coon Rapids, MN (US);
James J. Snyder, Blaine, MN (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A medical electrical lead is provided that is readily manufactured using a minimal number of parts, has a reduced size and improved reliability during implantation and extraction. The lead includes a modular electrode head assembly that is joined to a lead body at a butt joint. The butt joint is stabilized in at least four possible ways: insulation tubing that spans the joint is bonded to the electrode head assembly; two cabled conductors extending the length of the lead body are coupled to the electrode head assembly; an electrode head alignment peg interlocks with and is bonded to the lead body; and a coil electrode is positioned across the butt joint on the outer diameter of the assembly and the lead body. The lead size is minimized by using a compact retraction stop mechanism, a low-friction, press-fit drive shaft seal, and a small diameter coiled conductor insulated by a thin-walled insulating tube.