Directly integrated feedthrough to implantable medical device housing
First Claim
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1. An implantable medical device comprising:
- a housing having an opening with an opening width;
a feedthrough including an insulator having a bottom surface facing an interior space within the housing, a top surface facing away from the interior space, and opposing first and second side surfaces and having an insulator width between opposing side surfaces that is greater than the opening width; and
a sinter joint between at least one of the bottom surface, top surface, and side surfaces of the insulator and the housing which hermetically seals the insulator directly to the housing without an intervening ferrule, braze or weld;
wherein the housing comprises titanium, and wherein the titanium has an average grain size of not more than 100 μ
m.
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Abstract
One aspect provides an implantable medical device with a housing having an opening with an opening width. A feedthrough is provided, including an insulator having a bottom surface and side surfaces and having an insulator width between opposing side surfaces that is greater than the opening width. A sinter joint is between at least one of the bottom surface, top surface, and side surfaces of the insulator and the housing which hermetically seals the insulator to the housing without an intervening ferrule.
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Citations
17 Claims
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1. An implantable medical device comprising:
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a housing having an opening with an opening width; a feedthrough including an insulator having a bottom surface facing an interior space within the housing, a top surface facing away from the interior space, and opposing first and second side surfaces and having an insulator width between opposing side surfaces that is greater than the opening width; and a sinter joint between at least one of the bottom surface, top surface, and side surfaces of the insulator and the housing which hermetically seals the insulator directly to the housing without an intervening ferrule, braze or weld; wherein the housing comprises titanium, and wherein the titanium has an average grain size of not more than 100 μ
m. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An implantable medical device comprising:
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a housing having an opening with an opening width; a feedthrough including an insulator having a bottom surface facing an interior space within the housing, a top surface facing away from the interior space, and opposing first and second side surfaces and having an insulator width between opposing side surfaces that is greater than the opening width; and a sinter joint between at least one of the bottom surface, top surface, and side surfaces of the insulator and the housing which hermetically seals the insulator to the housing without an intervening ferrule; wherein the housing comprises titanium, and wherein the titanium has an average grain size of not more than 100 μ
m. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification