Capacitor for an implantable cardiac defibrillator

Details Capacitor for an implantable cardiac defibrillator Capacitor for an implantable cardiac defibrillator

1997-09-29

1999-06-01

Heinrich, Samuel M.

Metal fusion bonding

Process

Using high frequency vibratory energy

2281791, 228190, B23K 2010

Patent

active

059081511

ABSTRACT:
A capacitor and a method for making the capacitor using ultrasonic welding to join the cathode layers together are provided. The capacitor includes a housing defining a chamber with a step provided at an inner portion of the housing. A plurality of capacitor layers each including a cathode foil, a separator and an anode foil, each having alignment holes therein to precisely fit with alignment elements housing, is positioned within the chamber, with the alignment holes mating with the alignment elements. The housing is electrically conductive for connection to the cathode foils. Each cathode foil includes a cathode tab which extends away from the foil. The cathode tabs are pressed together and ultrasonically welded to the housing step abutting the periphery of the interior of the housing.

REFERENCES:
patent: 4633368 (1986-12-01), Frederick
patent: 4814939 (1989-03-01), Box, Jr.
patent: 5131388 (1992-07-01), Pless et al.
patent: 5522851 (1996-06-01), Fayram
patent: 5808857 (1998-09-01), Stevens

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