Adhesively-bonded capacitive filter feedthrough for implantable

Details Adhesively-bonded capacitive filter feedthrough for implantable Adhesively-bonded capacitive filter feedthrough for implantable

1997-12-18

1999-02-02

Kincaid, Kristine

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

361305, 361307, 361329, 174152GM, 333182, 333185, 29 2542, H01G 435, H01G 4008

Patent

active

058673610

ABSTRACT:
A capacitive filter feedthrough assembly and method of making the same are disclosed for shielding an implantable medical device such as pacemaker or defibrillator from electromagnetic interference or noise. A ferrule is adapted for mounting onto a conductive device housing by welding, soldering, brazing or gluing, and supports a terminal pin for feedthrough passage to a housing interior. A capacitive filter is mounted at the inboard side of a device housing, with capacitive filter electrode plate sets coupled respectively to the housing and the terminal pin by electrically conductive adhesive or brazing, or a combination of adhesive and brazing. In one embodiment of the invention, multiple capacitive filters are provided in an array within a common base structure, where each capacitive filter is associated with a respective terminal pin.

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