Lead lumen sealing device
First Claim
1. A medical device for use with an implantable lead comprising:
- a connector cavity having an entrance end and a proximal end and adapted to receive a lead connector pin of said lead, said pin having an open end; and
an electrically nonconducting elastomeric gasket located within said connector cavity and adapted to contact and seal the open end of the lead connector pin against fluid intrusion when the lead connector pin is residing within said connector cavity wherein said connector cavity has a lead connector pin electrical contact zone located between said entrance end and said proximal end, and wherein said gasket is located between said lead connector pin electrical contact zone and said proximal end without extending into said electrical contact zone when said lead is residing within said connector cavity.
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Accused Products
Abstract
A lead sealing device that resides within the connector cavity of a pacemaker or defibrillator intended to prevent fluid intrusion by automatically sealing the lead lumen when the lead connector is inserted. The sealing mechanism may be in the form of a silicone disk located at the base of the space defined by the connector cavity in which the lead is inserted to make electrical and physical contact. It may be fixedly located at the bottom of the connector cavity, or may be a movable plug located within the connector cavity at a location other than the bottom of the cavity, such as adjacent to the connector block. In that case, the pin will make contact with the movable plug immediately after passing through the connector block, and will remain in contact with and seal the lead lumen while the pin and plug are further advanced to bring the pin into its final location to make electrical contact with the connector contact.
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Citations
12 Claims
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1. A medical device for use with an implantable lead comprising:
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a connector cavity having an entrance end and a proximal end and adapted to receive a lead connector pin of said lead, said pin having an open end; and an electrically nonconducting elastomeric gasket located within said connector cavity and adapted to contact and seal the open end of the lead connector pin against fluid intrusion when the lead connector pin is residing within said connector cavity wherein said connector cavity has a lead connector pin electrical contact zone located between said entrance end and said proximal end, and wherein said gasket is located between said lead connector pin electrical contact zone and said proximal end without extending into said electrical contact zone when said lead is residing within said connector cavity. - View Dependent Claims (2, 3, 4, 5)
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6. A medical device for use with an implantable lead comprising:
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a connector cavity having an entrance end and a proximal end and adapted to receive a lead connector pin of said lead, said pin having an open end; and an electrically nonconducting elastomeric gasket located within said connector cavity and adapted to contact and seal the open end of the lead connector pin against fluid intrusion when the lead connector pin is residing within said connector cavity, wherein said connector cavity has a lead connector pin electrical contact zone located between said entrance end and said proximal end, and wherein said gasket is located between said electrical contact zone and said proximal end without extending into said electrical contact zone when said lead is residing within said connector cavity;
wherein said gasket comprises an interface material for contacting the open end of the lead connector pin and a bulk material located between said interface material and said proximal end. - View Dependent Claims (7, 8)
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9. A connector assembly comprising:
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a connector cavity having an entrance end, a proximal end, and a lead connector pin electrical contact zone located between said entrance end and said proximal end, and having an electrically nonconducting elastomeric sealing device located between said lead connector pin electrical contact zone and said proximal end without extending into said electrical contact zone; and a lead connector having a lead connector pin open end and residing within said connector cavity wherein said sealing device is in contact with said lead connector pin open end, thereby sealing said lead connector pin open end against fluid intrusion. - View Dependent Claims (10, 11, 12)
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Specification