Patent · US Active

Extendable/retractable fixation lead with distal travelling seal and related devices

US8478429B2 · kind B2 · utility

7Cited by

8References

20Claims

0Family size

Assignee

Cardiac Pacemakers, Inc. · US

Inventors

Joseph Walker · Avon, US
Ronald W. Heil, Jr. · Roseville, US
G. Shantanu Reddy · Minneapolis, US

Key dates

Filing date	Oct 5, 2011
Grant date	Jul 2, 2013
Priority date	—
Expiry date	Nov 18, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61N1/0575
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

An implantable lead having a distal assembly including a coupler, a fixation helix secured to the coupler, a housing in which the fixation helix and the coupler are disposed, and a resilient seal that is fixedly secured to the coupler between proximal and distal ends thereof and able to translate with the coupler relative to the housing. The seal is positioned to sealingly engage an internal surface of the housing. When the coupler is translated such that the fixation helix is in a fully extended position, the seal is positioned to substantially seal off the housing to prevent tissue ingrowth.

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