Coring knife
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United States of America Patent
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Jun 2, 2015
Grant Date -
Nov 22, 2012
app pub date -
May 17, 2012
filing date -
May 18, 2011
priority date (Note) -
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Abstract
A coring knife can be used to make a circular incision. The coring knife includes an abutment that is inserted into an initial slit through the heart wall. The abutment can be inserted into the slit while oriented in a direction that minimizes its insertion profile. After insertion, the abutment is reoriented by turning a key so that its abutment surface faces toward a circular cutting edge of the coring knife on the other side of the heart wall. The circular incision through the heart wall is made by pressing the circular cutting edge of the coring knife against the abutment.
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