Superelastic/shape memory tissue stabilizers and surgical instruments
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United States of America Patent
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Mar 4, 2008
Grant Date -
Mar 27, 2003
app pub date -
Sep 6, 2002
filing date -
Sep 6, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A surgical instrument is used for temporary use in a medical procedure in a mammalian body. The surgical instrument is configured to be changed between two shapes upon application of one or both of heating and cooling. The instrument includes a first member, a second member having a surface configured to contact tissue, and a means to apply heating or cooling to one or both of the first member and the second member to change the shape between a first shape and a second shape. A surgical instrument also may be configured to be changed between two shapes upon removal of a constraining force. The surgical instrument includes a first member, a second member having a surface configured to contact tissue, and a constraining means to apply a constraining force to one or both of the first member and the second member to cause one or both of the first member and the second member to be in a first constrained shape. The surgical instruments may be used in minimally invasive valve surgery.
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