Methods for manufacturing a clip and clip
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United States of America Patent
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Jun 19, 2012
Grant Date -
Mar 10, 2011
app pub date -
Nov 12, 2010
filing date -
Dec 31, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
The present disclosure relates to a clip manufactured according to a method which can be used to engage body tissue for the purpose of closing wounds. Such clips are generally annular in shape and have radially inwardly extending tines. The present disclosure first forms a precursor which, in one embodiment, has the tines extending radially outwardly from the annular body and then forms the clip by inverting the precursor such that the tines extend radially inwardly. In an alternate embodiment, the precursor is formed with an over-sized lateral dimension and then compressed inwardly to bring the tines closer together and to reduce the lateral dimension of the precursor. Such clips may be manufactured from a superelastic alloy such as nickel-titanium, in which case the inverted or compressed precursor must be heated and quenched to heat set the clip in its final shape.
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