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An electrical connection assembly of a medical device includes a plurality of electrical contact blocks and a sealing member, which are held within a cavity of a base of the assembly. The sealing member includes a plurality of openings, at least one interior surface surrounding a bore and at least o

An electrical connection assembly of a medical device includes a plurality of electrical contact blocks and a sealing member, which are held within a cavity of a base of the assembly. The sealing member includes a plurality of openings, at least one interior surface surrounding a bore and at least one void. Each electrical contact block extends into a corresponding opening of the sealing member, and a conductive sidewall of each block defines a portion of a perimeter of an area for receiving a lead connector, while the bore of the sealing member forms another portion of the perimeter of the area. The at least one void provides a compressible space in a bulk volume of the sealing member. When the lead is inserted within the area, and a cap is engaged with the base, the at least one interior surface of the sealing member is compressed about the lead.

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We claim: 1. An electrical connection assembly for a medical device, the assembly for coupling the device to a medical electrical lead connector that includes a plurality of connector elements spaced apart from one another along a length of a proximal portion of a medical electrical lead, and the a

We claim: 1. An electrical connection assembly for a medical device, the assembly for coupling the device to a medical electrical lead connector that includes a plurality of connector elements spaced apart from one another along a length of a proximal portion of a medical electrical lead, and the assembly comprising: a base for mounting to a housing of the device, the base including a cavity; a cap engagable with the base; a bore for receiving insertion of the medical electrical lead connector therein; a plurality of electrical contact blocks held within the cavity, each of the plurality of electrical contact blocks including a conductive sidewall, the conductive sidewalls defining a portion of a perimeter of the bore and being spaced apart from one another along a length of the bore such that each is located for electrical coupling with a corresponding connector element of the lead connector, when the lead connector is inserted within the bore; and a sealing member held within the base cavity, the sealing member including a plurality of openings, at least one interior surface surrounding the bore, to define another portion of the perimeter of the bore, and at least one void; wherein each of the plurality of electrical contact blocks extends into a corresponding opening of the plurality of openings of the sealing member; the at least one void of the sealing member is independent of the bore and of the plurality of openings and provides a compressible space in a bulk volume of the sealing member; and when the lead connector is inserted within the bore and the cap is engaged with the base, the at least one void is compressed and the at least one interior surface of the sealing member is compressed about the lead connector. 2. The assembly of claim 1, further comprising: another plurality of electrical contact blocks; and wherein each of the two pluralities of electrical contact blocks are arranged in a corresponding column of first and second columns that extend alongside one another, so that each electrical contact block of both pluralities extends into the corresponding opening of the plurality of openings of the sealing member; each electrical contact block of the other plurality also includes a conductive sidewall that defines yet another portion of a perimeter of the bore; and the conductive sidewalls of the other plurality of electrical contact blocks are also spaced apart from one another along the length of the bore such that each is located for electrical coupling with a corresponding connector element of the lead connector, when the lead connector is inserted within the bore. 3. The assembly of claim 2, further comprising: a plurality of resilient members attached to the cap and arranged in first and second columns that extend alongside one another, the first column of resilient members corresponding to the first column of the plurality of electrical contact blocks and the second column of resilient members corresponding to the second column of the other plurality of electrical contact blocks so that each resilient member of each of the first and second columns is positioned for applying a spring force against a corresponding conductive sidewall within the corresponding opening of the plurality of openings of the sealing member, when the cap is engaged with the base; and wherein, when lead connector is inserted within the bore and the cap is engaged with the base, each resilient member of the first column of the plurality of resilient members applies a spring force against both the conductive sidewall of the corresponding contact block of the first column thereof and a corresponding connector element of the inserted lead connector, to cause electrical coupling between each corresponding conductive sidewall of the first column and each connector element, and each resilient member of the second column of the plurality of resilient members applies a spring force against both the conductive sidewall of the corresponding contact block of the second column thereof and against a corresponding connector element of the inserted lead connector, to cause electrical coupling between each corresponding conductive sidewall of the second column and each connector element; and each resilient member of the first and second columns includes a conductive surface, and the spring force applied by each resilient member urges the conductive surface of the member into contact with the corresponding conductive sidewall and corresponding connector element, to cause the electrical coupling for each connector element of the inserted lead connector. 4. The assembly of claim 1, further comprising: a plurality of resilient members attached to the cap, each member applying a spring force against a corresponding connector element of the lead connector, when the lead connector is inserted within the bore so that each connector element of the plurality of connector elements is positioned adjacent to the corresponding conductive sidewall, and when the cap is engaged with the base; and wherein the applied spring force of each resilient member causes electrical coupling between the corresponding connector element and the corresponding conductive sidewall. 5. The assembly of claim 4, wherein the spring force of each resilient member urges the corresponding connector element into contact with the corresponding conductive sidewall to cause the electrical coupling. 6. The assembly of claim 4, wherein each resilient member further includes a conductive surface and the spring force of each resilient member urges the conductive surface of the member into contact with the corresponding connector element and the corresponding conductive sidewall to cause the electrical coupling. 7. A medical device configured for coupling to a medical electrical lead connector that includes a plurality of connector elements spaced apart from one another along a length of a proximal portion of a medical electrical lead, and the medical device comprising: a housing containing electronic circuitry; a base mounted to the housing and including a cavity; a cap engagable with the base; a bore for receiving insertion of the medical electrical lead connector therein; a plurality of electrical contact blocks held within the cavity, each of the plurality of electrical contact blocks including a conductive sidewall, the conductive sidewalls defining a portion of a perimeter of the bore and being spaced apart from one another along a length of the bore such that each is located for electrical coupling with a corresponding connector element of the lead connector, when the lead connector is inserted within the bore; a plurality of feedthrough wires, each of the plurality of feedthrough wires being electrically coupled to a corresponding electrical contact block of the plurality of contact blocks and extending through the base and into the housing for electrical coupling with the circuitry contained therein; a sealing member held within the base cavity, the sealing member including a plurality of openings, at least one interior surface surrounding the bore, to define another portion of the perimeter of the bore, and at least one void; wherein each of the plurality of electrical contact blocks extends into a corresponding opening of the plurality of openings of the sealing member; the at least one void of the sealing member is independent of the bore and of the plurality of openings and provides a compressible space in a bulk volume of the sealing member; and when the lead connector is inserted within the bore and the cap is engaged with the base, the at least one void is compressed and the at least one interior surface of the sealing member is compressed about the lead connector. 8. The device of claim 7, further comprising: another plurality of electrical contact blocks; and another plurality of feedthrough wires, each of the other plurality of feedthrough wires being electrically coupled to a corresponding electrical contact block of the other plurality of contact blocks and extending through the base and into the housing for electrical coupling with the circuitry contained therein; and wherein each of the two pluralities of electrical contact blocks are arranged in a corresponding column of first and second columns that extend alongside one another, so that each electrical contact block of both pluralities extends into the corresponding opening of the plurality of openings of the sealing member; each electrical contact block of the other plurality also includes a conductive sidewall that defines yet another portion of a perimeter of the bore; and the conductive sidewalls of the other plurality of electrical contact blocks are also spaced apart from one another along the length of the bore such that each is located for electrical coupling with a corresponding connector element of the lead connector, when the lead connector is inserted within the bore. 9. The device of claim 8, further comprising: a plurality of resilient members attached to the cap and arranged in first and second columns that extend alongside one another, the first column of resilient members corresponding to the first column of the plurality of electrical contact blocks and the second column of resilient members corresponding to the second column of the other plurality of electrical contact blocks so that each resilient member of each of the first and second columns is positioned for applying a spring force against a corresponding conductive sidewall within the corresponding opening of the plurality of openings of the sealing member, when the cap is engaged with the base; and wherein, when lead connector is inserted within the bore and the cap is engaged with the base, each resilient member of the first column of the plurality of resilient members applies a spring force against both the conductive sidewall of the corresponding contact block of the first column thereof and a corresponding connector element of the inserted lead connector, to cause electrical coupling between each corresponding conductive sidewall of the first column and each connector element, and each resilient member of the second column of the plurality of resilient members applies a spring force against both the conductive sidewall of the corresponding contact block of the second column thereof and against a corresponding connector element of the inserted lead connector, to cause electrical coupling between each corresponding conductive sidewall of the second column and each connector element; and each resilient member of the first and second columns includes a conductive surface, and the spring force applied by each resilient member urges the conductive surface of the member into contact with the corresponding conductive sidewall and corresponding connector element, to cause the electrical coupling for each connector element of the inserted lead connector. 10. The device of claim 7, further comprising: a plurality of resilient members attached to the cap, each member applying a spring force against a corresponding connector element of the lead connector, when the lead connector is inserted within the bore so that each connector element of the plurality of connector elements is positioned adjacent to the corresponding conductive sidewall, and when the cap is engaged with the base; and wherein the applied spring force of each resilient member causes electrical coupling between the corresponding connector element and the corresponding conductive sidewall. 11. The device of claim 10, wherein the spring force of each resilient member urges the corresponding connector element into contact with the corresponding conductive sidewall to cause the electrical coupling. 12. The device of claim 10, wherein each resilient member further includes a conductive surface and the spring force of each resilient member urges the conductive surface of the member into contact with the corresponding connector element and the corresponding conductive sidewall to cause the electrical coupling.