Internally supported self-sealing septum
First Claim
1. In an implantable medical device including a housing enclosing a receptacle for receiving a pacing lead connector pin, the receptacle including a connector block having a threaded aperture for receiving a setscrew for securing the connector pin to the connector block, a self-sealing septum adapted to be mounted on said housing for isolating the setscrew, the septum comprising a generally cylindrical elastomer body having a central axis and including a self-sealing passage coaxial with said axis for receiving a tool for driving the setscrew, the body of the septum containing a generally ring-shaped stiffener element positioned substantially coaxial of said axis, the stiffener element preventing damage to the septum as a result of insertion of the setscrew driving tool in the septum passage.
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Accused Products
Abstract
A self-sealing septum for isolating the setscrew used to secure a pacing lead connector pin to an implantable medical device such as a cardiac pacemaker. The septum comprises a generally cylindrical elastomer body having a central axis and a self-sealing passage coaxial with the axis for receiving a tool such as a hex key for driving the setscrew. The body of the septum contains a generally ring-shaped stiffener element for providing internal support and preventing damage to the septum passage caused by insertion of the hex key.
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Citations
13 Claims
- 1. In an implantable medical device including a housing enclosing a receptacle for receiving a pacing lead connector pin, the receptacle including a connector block having a threaded aperture for receiving a setscrew for securing the connector pin to the connector block, a self-sealing septum adapted to be mounted on said housing for isolating the setscrew, the septum comprising a generally cylindrical elastomer body having a central axis and including a self-sealing passage coaxial with said axis for receiving a tool for driving the setscrew, the body of the septum containing a generally ring-shaped stiffener element positioned substantially coaxial of said axis, the stiffener element preventing damage to the septum as a result of insertion of the setscrew driving tool in the septum passage.
- 7. In an implantable medical device including a housing enclosing a receptacle for receiving a pacing lead connector pin, the receptacle including a connector block having a threaded aperture for receiving a setscrew for securing the connector pin to the connector block, a self-sealing septum adapted to be mounted on said housing for isolating the setscrew, the septum comprising an elastomer body having a chamber for receiving the head portion of the setscrew, the chamber including an upper wall, the septum further including a self-sealing passage in said body in communication with the upper wall of the chamber for receiving a tool for driving the setscrew, the body of the septum containing a stiffener element adjacent the upper wall of the chamber, said stiffener element preventing damage to the septum as a result of insertion of the setscrew driving tool in the septum passage.
Specification