Patent · US Expired

Drive shaft seal for a medical electrical lead

US6931285B2 · kind B2 · utility

11Cited by

10References

2Claims

0Family size

Assignee

Medtronic, Inc. · US

Inventor

Thomas C. Bischoff · Buxtehude, DE

Key dates

Filing date	Apr 17, 2002
Grant date	Aug 16, 2005
Priority date	—
Expiry date	May 27, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49227
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A medical electrical lead that includes a lead body having a lead body lumen and an electrode head assembly having an inner wall and an electrode head assembly lumen adjacent to the lead body lumen. The lead further includes a drive shaft that extends through the lead body lumen and the electrode head assembly lumen, and a sealing member, having an outer diameter corresponding to the inner wall of the electrode head assembly lumen. The sealing member includes an inner lumen that receives the drive shaft, an outer sealing member that is fixedly engaged with the inner wall of the electrode head assembly, and an inner sealing member engaged with the drive shaft to provide a low friction seal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.