Method of coupling a feedthrough assembly for an implantable medical device
First Claim
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1. A method of coupling a feedthrough assembly directly to a surrounding case of an implantable medical device comprising:
- providing an insulator having a plurality of conducting elements extending therethrough;
placing the insulator with conducting elements within an opening of a case, thereby defining a narrow space between the insulator and the case;
placing a braze preform adjacent the insulator and case in the narrow space;
heating the insulator with a laser until raising the temperature of the adjacent preform above its melting point such that it flows and fills the space between the insulator and the case, thereby coupling the insulator directly to the case without an intervening ferrule.
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Abstract
One aspect is a method of coupling a feedthrough assembly to a surrounding case of an implantable medical device. An insulator having a plurality of conducting elements extending therethrough is provided. The insulator is placed with conducting elements within an opening of a case, thereby defining a narrow space between the insulator and the case. A braze preform is placed adjacent the insulator and case in the narrow space. The insulator is heated with a laser until raising the temperature of the adjacent preform above its melting point such that it fills the space between the insulator and the case.
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Citations
17 Claims
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1. A method of coupling a feedthrough assembly directly to a surrounding case of an implantable medical device comprising:
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providing an insulator having a plurality of conducting elements extending therethrough; placing the insulator with conducting elements within an opening of a case, thereby defining a narrow space between the insulator and the case; placing a braze preform adjacent the insulator and case in the narrow space; heating the insulator with a laser until raising the temperature of the adjacent preform above its melting point such that it flows and fills the space between the insulator and the case, thereby coupling the insulator directly to the case without an intervening ferrule. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of coupling a feedthrough assembly to a surrounding case of an implantable medical device comprising:
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providing an insulator having a plurality of conducting elements extending therethrough; placing the insulator with conducting elements within an opening of a case, thereby defining a narrow space between the insulator and the case; placing a braze preform adjacent the insulator and case in the narrow space; and heating the insulator with a laser until raising the temperature of the adjacent preform above its melting point such that it flows and fills the space between the insulator and the case; wherein raising the temperature of the adjacent preform above its melting point is characterized in that the laser is directed exclusively at the case and the insulator and not directed at the preform. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification