Electrosurgical haptic switch including snap dome and printed circuit stepped contact array
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United States of America Patent
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Jun 8, 2004
Grant Date -
Mar 25, 2004
app pub date -
Sep 20, 2002
filing date -
Sep 20, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present disclosure relates to tactile switch assemblies having stepped printed circuit boards for use with snap-domes in surgical instruments. In accordance with one aspect of the present disclosure a tactile switch assembly for use with a surgical instrument includes a substrate, an inner terminal disposed on an upper surface of the substrate and having a first height, an outer terminal disposed on the upper surface of the substrate and substantially surrounding the inner terminal and having a second height which is greater than the height of the inner terminal and a snap-dome secured to the substrate and having a periphery engaged to and in electrical communication with the outer terminal. The snap-dome is depressible through a range wherein, upon inversion of the snap-dome, an apex of the snap dome electrically connect the inner and outer terminals.
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