Direct integration of feedthrough to implantable medical device housing with ultrasonic welding
First Claim
1. A method of securing a feedthrough directly to a metal housing for an implantable medical device, the method comprising:
- providing the feedthrough comprising an insulating section and at least one conductive section extending through the insulating section;
metalizing at least a portion of the insulating section;
placing the metalized feedthrough within an opening in the metal housing of the implantable medical device;
positioning the feedthrough and metal housing within an ultrasonic welding system;
placing a bond material between the feedthrough and the metal housing; and
energizing the ultrasonic welding system such that ultrasonic energy welds the feedthrough directly to the metal housing with the bonding material and without any intervening ferrule between the feedthrough and the metal housing, thereby creating a hermetic seal between the feedthrough and housing;
characterized in that the temperature of the metal housing is not raised above the β
-transus temperature of the metal housing during the ultrasonic welding.
2 Assignments
0 Petitions
Accused Products
Abstract
One aspect provides a method of securing a feedthrough to a metal housing for an implantable medical device. The feedthrough is provided comprising an insulating section and at least one conductive section extending through the insulating section. At least a portion of the insulating section is metalized and the metalized feedthrough is placed within an opening in the metal housing of the implantable medical device. The feedthrough and metal housing are positioning within an ultrasonic welding system and the ultrasonic welding system is energized such that sonic energy welds the feedthrough directly to the metal housing. The temperature of the metal housing is not raised above the β-transus temperature of the metal housing during the ultrasonic welding.
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Citations
8 Claims
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1. A method of securing a feedthrough directly to a metal housing for an implantable medical device, the method comprising:
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providing the feedthrough comprising an insulating section and at least one conductive section extending through the insulating section; metalizing at least a portion of the insulating section; placing the metalized feedthrough within an opening in the metal housing of the implantable medical device; positioning the feedthrough and metal housing within an ultrasonic welding system; placing a bond material between the feedthrough and the metal housing; and energizing the ultrasonic welding system such that ultrasonic energy welds the feedthrough directly to the metal housing with the bonding material and without any intervening ferrule between the feedthrough and the metal housing, thereby creating a hermetic seal between the feedthrough and housing; characterized in that the temperature of the metal housing is not raised above the β
-transus temperature of the metal housing during the ultrasonic welding. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification