Apparatus to improve the high voltage flashover characteristics of EMI feedthrough filters used in active implantable medical devices
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United States of America Patent
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Jun 23, 2009
Grant Date -
Aug 3, 2006
app pub date -
Jul 6, 2005
filing date -
Feb 1, 2005
priority date (Note) -
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Abstract
A feedthrough terminal assembly for an active implantable medical device includes a conductive terminal pin or leadwire, a feedthrough filter capacitor having a first set of electrode plates conductively coupled to the terminal pin or leadwire, and a second set of electrode plates conductively coupled to a housing, ferrule or ground plane of the active implantable medical device, and a non-conductive mullion disposed relative to the terminal pin or leadwire for increasing creepage distance between the terminal pin or leadwire and another conductive element, creating a tortuous path that increases resistance to arcing/flashover.
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