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US 2003/0191505 A1Published application
Magnetic structure for feedthrough filter assembly
OwnerMark Gryzwa, Allen Novotny +3inventors
InventorsMark Gryzwa, Allen Novotny, David Chizek, Jason Sprain, Michael J. Lyden
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Abstract
A feedthrough assembly for use in an implantable medical device that performs filtering of electromagnetic interference and can be easily manufactured. A magnetic structure is adapted to fit over a plurality of terminal pins of the feedthrough assembly within the device housing to provide inductive isolation from electromagnetic interference.
Claims18
A feedthrough filter assembly, comprising:
- a plurality of conductive terminal pins;
- a conductive ferrule through which the terminal pins pass in non-conductive and sealing relation, the ferrule being adapted for fitting within an opening of a conductive housing;
- and,
- a magnetic structure for fitting over the terminal pins within the conductive housing to thereby form an inductive filter for signals carried by the terminal pins.
1 more element
A method for constructing a feedthrough filter assembly, comprising:
- passing a plurality of conductive terminal pins through a conductive ferrule in non-conductive and sealing relation;
- fitting the conductive ferrule within an opening of a conductive housing for an implantable medical device;
- and,
- fitting a magnetic structure over the terminal pins within the conductive housing to thereby form an inductive filter for signals carried by the terminal pins.
1 more element
Dependencies are inferred from the claim text.