06901288 is referenced by 11 patents and cites 109 patents.

A seal adapted for use with medical devices is provided with a lead having a distal tip electrode. The distal tip of the lead is adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity. The lead can include a fixation helix for securing the electrode to cardiac tissue. The lead assembly can alternatively include an open lumen lead tip. A seal is provided within the lead tip assembly such that the seal is expanded to prevent or limit further entry of fluids through the lead tip. The seal includes an expandable matrix, such as a hydrogel. The seal is formed on or within the lead when the lead and the seal comes into contact with a fluid and expands. The seal is also formed as a plug which is deployed through the medical device, and expands as the plug absorbs fluid. A housing incorporating the seal can also be attached to a portion of the medical device to provide the seal.

Title
Sealing assembly for intravenous lead
Application Number
9/970195
Publication Number
6901288 (B2)
Application Date
October 2, 2001
Publication Date
May 31, 2005
Inventor
Bruce Tockman
Scandia
MN, US
Ronald W Heil Jr
Roseville
MN, US
Randy Westlund
Minneapolis
MN, US
Larry L Hum
Cottage Grove
MN, US
Aaron W Janke
St. Paul
MN, US
Agent
Finnegan Henderson Farabow Garret & Dunner
Assignee
Cardiac Pacemakers
MN, US
IPC
A61N 001/362
A61N 001/05
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