Bipolar lead adapter with resilient housing and rigid retainers for plug seals
First Claim
1. A body insertable device forming an electrical and mechanical connection with an electrical lead, including:
- a resilient and electrically insulative housing having a biocompatible exterior surface;
a longitudinal first bore in said housing for receiving an electrically conductive terminal portion of an electrical lead, and a second bore in said housing open to the first bore and to the exterior surface;
an electrically conductive connector means mounted within said housing and positioned to receive the terminal portion when said lead is inserted into said first bore, said connector means being adjustable, by a tool inserted into said second bore, to engage said terminal portion and thereby secure said lead in the housing, and alternatively release said lead; and
a biocompatible sealing means for providing electrical and fluid isolation of said connector means from bodily fluids proximate said exterior surface, said sealing means including a resilient and electrically insulative seal member contained in said second bore between said connector means and said exterior surface, said seal member having a passage therethrough and being elastically deformable to allow insertion of said tool into the second bore through the passage and into an operable engagement with the connector means, said seal member returning to a sealing configuration to close said passage and provide said isolation upon a withdrawal of said tool, said sealing means further including a rigid retaining means along a portion of a bore defining surface of said housing defining said second bore, said retaining means being coaxial with said second bore and in surrounding and contiguous relation to said seal member.
2 Assignments
0 Petitions
Accused Products
Abstract
An adapter for extending a sensing and stimulation delivery lead in a body stimulation system, such as a cardiac pacer or cardioverter defibrillator, includes a resilient, electrically insulative housing with a longitudinal barrel extended through the majority of the housing length for the insertion of a lead terminal connector. Two spaced apart transverse bores are formed in the housing, open to barrel and to the housing exterior. Two connector assemblies are mounted in the housing and positioned to receive respective pin and ring terminals of the lead when inserted into the barrel. Each connector assembly can be adjusted to secure the lead in the housing, by a tool inserted through one of the transverse bores. Each connector assembly is isolated from the housing exterior by a seal means mounted in the associated bore. Each seal means includes a seal member elastically deformable to admit a tool to the associated connector assembly via a passage through the seal member. A rigid retaining sleeve, secured within the associated bore, surrounds and slightly compresses its associated seal member to ensure that the passage remains closed when not admitting the tool.
175 Citations
19 Claims
-
1. A body insertable device forming an electrical and mechanical connection with an electrical lead, including:
-
a resilient and electrically insulative housing having a biocompatible exterior surface; a longitudinal first bore in said housing for receiving an electrically conductive terminal portion of an electrical lead, and a second bore in said housing open to the first bore and to the exterior surface; an electrically conductive connector means mounted within said housing and positioned to receive the terminal portion when said lead is inserted into said first bore, said connector means being adjustable, by a tool inserted into said second bore, to engage said terminal portion and thereby secure said lead in the housing, and alternatively release said lead; and a biocompatible sealing means for providing electrical and fluid isolation of said connector means from bodily fluids proximate said exterior surface, said sealing means including a resilient and electrically insulative seal member contained in said second bore between said connector means and said exterior surface, said seal member having a passage therethrough and being elastically deformable to allow insertion of said tool into the second bore through the passage and into an operable engagement with the connector means, said seal member returning to a sealing configuration to close said passage and provide said isolation upon a withdrawal of said tool, said sealing means further including a rigid retaining means along a portion of a bore defining surface of said housing defining said second bore, said retaining means being coaxial with said second bore and in surrounding and contiguous relation to said seal member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A resilient adapter forming an electrical and mechanical connection with a bipolar lead, including:
-
a resilient and electrically insulative adapter housing, with at least an exterior surface of said housing being biocompatible; a longitudinal first bore in said adapter housing for receiving an electrically conductive terminal portion of a lead, and second and third bores in said housing, each open to said first bore and to said exterior surface; electrically conductive first and second connector assemblies mounted within said housing and positioned to receive respective first and second terminals of said terminal portion when said lead is inserted into said first bore, each of said connector assemblies including a terminal receiving receptacle having a socket aligned with said longitudinal first bore, and a fastener mounted in said receptacle and adjustable by a tool inserted into its associated one of said second and third bores, to engage said terminal portion at its associated one of said first and second terminals and thereby secure said lead with respect to said adapter housing, said fasteners further being adjustable to release said lead; and first and second biocompatible sealing means for providing electrical and fluid isolation of said first and second connector assemblies, respectively, from bodily fluids proximate said exterior surface, each of said sealing means including a resilient and electrically insulative seal member contained in an associated one of said second and third bores between its associated connector assembly and said exterior surface, each seal member having a passage therethrough and being elastically deformable to allow insertion of said tool into its associated one of said second and third bores through the passage and into an operable engagement with the associated connector assembly, each seal member returning to a sealing configuration to close its associated passage and provide said isolation upon withdrawal of said tool, each sealing means further including a rigid retaining means along a bore defining surface of said housing defining its associated one of said second and third bores each said retaining means being coaxial with its associated bore and in surrounding and contiguous relation to its associated seal member. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
-
Specification