Siemens-pacesetter, Inc.

Jeffrey C Kristiansen

Paul E Kreyenhagen

Ronald V Forino

A suture sleeve assembly for gripping and anchoring the lead body of an implantable medical device, such as a cardiac pacemaker, includes a tubular member adapted to receive the lead body. Disposed about the tubular member is a collar movable longitudinally along the tubular member from a first, open position to a second position in which the collar compresses a portion of the tubular member into gripping engagement with the outer surface of the lead body. The collar is fabricated of a material that is stiffer than that from which the tubular member is fabricated.

Suture sleeve assembly with slidable compression collar

A suture sleeve for anchoring the lead body of an implantable medical device, such as a cardiac pacemaker, includes an elongated tubular member having a lumen for receiving the lead body. The tubular member has external threads for receiving a threaded collar. The tubular member and collar have engaging, tapered surfaces whereby tightening of the collar on the tubular member compresses a portion of the tubular member into gripping engagement with the lead body. The tubular member and collar have surfaces which come into contact upon tightening of the collar so as to limit compression of the lead body and thereby prevent damage thereto.

Threaded suture sleeve

A suture sleeve for securing the leads of a multiple lead implantable medical device includes lead gripping and anchoring portions. The sleeve has a pair of flexible side walls and longitudinally extending channels for receiving the leads. The side walls of at least the gripping portion have longitudinally extending, confronting, spaced apart edges and comprises two layers one of which is formed of a soft plastic such as silicone and the other of which is formed of a harder but flexible material such as polysulfone. Sutures placed and tied about the gripping portion compress the sleeve about the leads. Tightening of the sutures brings the confronting edges of the gripping portion of the sleeve into engagement thereby precluding further compression of the sleeve and preventing damage to the leads.

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Simi Valley, CA, United States of America

Jeffrey C Kristiansen