Cantilevered spring contact for an implantable medical device
First Claim
1. An apparatus, comprising:
- a housing that is rigid, defining a housing passage extending along a longitudinal axis, from a proximal portion including a proximal lip that defines a proximal opening, to a distal portion including a distal lip that defines a distal opening, the housing including an inner surface; and
an electrical contact spring disposed in the housing, the electrical contact spring defining an electrical contact spring passage concentric to the housing passage, the electrical contact spring comprising;
a distal ring portion disposed adjacent the distal portion of the housing and physically coupled to the housing;
a proximal ring portion disposed near the proximal portion of the housing, the proximal ring portion being cantilevered and suspended inside of the housing and spaced apart from the inner surface of the housing, and a plurality of electrical contact spring elements coupled to and extending from the distal ring portion to the proximal ring portion.
1 Assignment
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Accused Products
Abstract
Some examples of an electrical contact spring for an implantable medical device includes a housing, rigid and tubular in shape, defining a housing passage extending along a longitudinal axis, from a proximal portion including a proximal lip that defines a proximal opening, to a distal portion including a distal lip that defines a distal opening and a spring disposed in the housing, the spring tubular in shape and defining a spring passage concentric to the housing passage, the spring including: a distal ring portion disposed adjacent the distal portion of the housing and physically coupled to the housing, a plurality of spring elements coupled to and extending from the distal ring portion toward the proximal portion of the housing and a proximal ring portion disposed adjacent the proximal portion of the housing, cantilevered and suspended inside of and spaced apart from the housing by the plurality of spring elements.
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Citations
16 Claims
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1. An apparatus, comprising:
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a housing that is rigid, defining a housing passage extending along a longitudinal axis, from a proximal portion including a proximal lip that defines a proximal opening, to a distal portion including a distal lip that defines a distal opening, the housing including an inner surface; and an electrical contact spring disposed in the housing, the electrical contact spring defining an electrical contact spring passage concentric to the housing passage, the electrical contact spring comprising; a distal ring portion disposed adjacent the distal portion of the housing and physically coupled to the housing; a proximal ring portion disposed near the proximal portion of the housing, the proximal ring portion being cantilevered and suspended inside of the housing and spaced apart from the inner surface of the housing, and a plurality of electrical contact spring elements coupled to and extending from the distal ring portion to the proximal ring portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system, comprising:
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a hermetically sealed implantable medical device; a header coupled to the hermetically sealed medical device; a housing, coupled to the header, inside the header, the housing tubular in shape, defining a housing passage extending along a longitudinal axis, from a proximal portion including a proximal lip that defines a proximal opening, to a distal portion including a distal lip that defines a distal opening, the housing including an inner surface; and an electrical contact spring disposed in the housing, the electrical contact spring tubular in shape and defining an electrical contact spring passage concentric to the housing passage, the electrical contact spring comprising; a distal ring portion disposed adjacent the distal portion of the housing and physically coupled to the housing; a proximal ring portion disposed near the proximal portion of the housing, the proximal ring portion suspended inside of and spaced apart from at least some of the inner surface of the housing, and a plurality of electrical contact spring elements coupled to and extending from the distal ring portion to the proximal ring portion, wherein the plurality of electrical contact spring elements are adapted to flex to move transversely with respect to the longitudinal axis, to move the proximal ring portion with respect to the housing; and an electrical lead disposed in the electrical contact spring passage, with at least some of the plurality of electrical contact spring elements deformed around the electrical lead, contacting an electrical contact of the electrical lead. - View Dependent Claims (14, 15, 16)
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Specification