Header assembly for implantable medical devices
First Claim
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1. A header assembly for an implantable medical device (IMD) comprising:
- a body portion defining a plurality of openings spaced axially along the body portion;
a plurality of elastomeric walls interdisposed between adjacent openings to define cavities within the body portion, each elastomeric wall defining an aperture passing axially therethrough; and
a plurality of electrical contact rings each comprising an outer ring contact element and an electrical contact element housed in abutting engagement in an interior of the outer ring contact element, and configured to be positioned within the cavities such that adjacent elastomeric walls capture the electrical contact elements therebetween;
wherein the elastomeric walls are formed unitarily with the body portion.
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Abstract
A header assembly for an implantable medical device (IMD). The header assembly includes a plurality of cavities with a plurality of insulating rings interdisposed between adjacent ones of the cavities. The cavities receive electrical contact rings. In certain embodiments, the insulating rings are formed integrally with a body of the header assembly.
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Citations
18 Claims
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1. A header assembly for an implantable medical device (IMD) comprising:
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a body portion defining a plurality of openings spaced axially along the body portion; a plurality of elastomeric walls interdisposed between adjacent openings to define cavities within the body portion, each elastomeric wall defining an aperture passing axially therethrough; and a plurality of electrical contact rings each comprising an outer ring contact element and an electrical contact element housed in abutting engagement in an interior of the outer ring contact element, and configured to be positioned within the cavities such that adjacent elastomeric walls capture the electrical contact elements therebetween; wherein the elastomeric walls are formed unitarily with the body portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A header assembly for an implantable medical device (IMD) comprising:
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a body portion defining a plurality of first openings spaced axially along the body portion; a plurality of elastomeric walls interdisposed between the adjacent first openings to define first cavities within the body portion, each elastomeric wall defining an aperture passing axially therethrough; and a first plurality of electrical contact rings positioned within the cavities between the elastomeric walls to form channels wherein the elastomeric walls form side walls of the channel and the electrical contact ring forms a base wall of the channel, the side walls configured to capture a canted-coil spring housed within the electrical contact rings with no intervening portion of the electrical contact ring disposed between the canted-coil spring and the side walls; wherein the elastomeric walls are formed unitarily with the body portion. - View Dependent Claims (12, 13, 14, 15)
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16. A method of assembling a header for an implantable medical device (IMD) comprising:
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providing a unitary body portion defining a plurality of openings spaced axially along the body portion, and a plurality of elastomeric walls interdisposed between the adjacent openings to define cavities within the body portion, each elastomeric wall defining an aperture passing axially therethrough; inserting an electrical contact ring comprising an outer ring contact element and an electrical contact element housed in abutting engagement in an interior of the outer ring contact element into each cavity; and capturing the electrical contact elements within the elastomeric walls of the cavities with no intervening portion of the electrical contact ring disposed between the electrical contact element and the elastomeric walls. - View Dependent Claims (17, 18)
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Specification