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Flat capacitor having staked foils and edge-connected connection members

  • US 8,543,201 B2
  • Filed: 02/28/2008
  • Issued: 09/24/2013
  • Est. Priority Date: 11/03/2000
  • Status: Expired due to Fees
First Claim
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1. An implantable medical device comprising:

  • one or more leads for sensing electrical signals of a patient or for applying electrical energy to the patient;

    a monitoring circuit for monitoring heart activity of the patient through one or more of the leads; and

    a therapy circuit for delivering electrical energy through one or more of the leads to a heart of the patient, wherein the therapy circuit includes a capacitor, the capacitor comprising;

    a plurality of anodes, each anode comprising an anode foil having a formation voltage of approximately 441 volts or greater and having a porous structure;

    a plurality of cathodes;

    a plurality of electrolyte impregnated separators, wherein the capacitor is formed in a stack having alternating anodes and cathodes and at least one of the plurality of electrolyte impregnated separators located between each anode and each cathode;

    wherein each of the plurality of anodes includes a separate connection member attached to the anode, the connection member having a first section extending over and confronting a front edge face of the anode, wherein the connection member comprises a main member having a generally L-shaped cross-section; and

    and wherein adjacent anodes are stacked so that their respective connection members are positioned in a stacked relationship adjacent to each other such that the outer faces of the adjacent connection members are substantially planar relative to each other.

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