Circular stapler tissue retention spring method
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United States of America Patent
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May 10, 1994
Grant Date -
N/A
app pub date -
Oct 22, 1992
filing date -
Oct 22, 1992
priority date (Note) -
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status (Latency Note)
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Abstract
An tissue retention spring for use with a surgical circular stapler used to perform an anastomosis. The tissue retention spring is mounted onto the anvil shaft of the stapler. The spring has a plurality of connected helical coils defining a member having an axial passage therethrough. The spring provides tissue retention, tissue and fluid venting, and improved stapler closing.
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