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. 21, 1998
Filed:
Jan. 11, 1996
Kenneth R Brennen, Fridley, MN (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
An active-fixation medical electrical lead having an improved turning tool. In particular, the lead has a fixation helix attached to a coiled conductor, the coiled conductor is attached at the opposite end to a connector assembly. The coiled conductor is covered by an insulative sheath between the fixation helix and the connector assembly. Mating with the connector assembly is the improved turning tool. The turning tool features essentially three components: housing, roller assembly and header. Housing is shaped so as to frictionally couple with a sealing ring of the connector assembly while permitting a connector pin to of the connector assembly to extend therethrough and into roller assembly. Through such a combination the roller assembly may be rotated relative to housing thereby causing connector pin to rotate relative to sealing ring and thus extend or retract a fixation helix. Header further permits a stylet to be guided through turning tool and remain within lead while in use. Ultimately such a device permits a physician to extend as well as retract a helix with only one hand.