Circular stapling devices with tissue-puncturing anvil features
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United States of America Patent
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May 19, 2015
Issued Date -
N/A
app pub date -
Jul 13, 2011
filing date -
Mar 14, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
Circular stapling instruments and anvil assemblies. The anvil assemblies may have collapsible anvil support members that may be inserted through an opening in a patient and then expanded to be attached to an anvil plate assembly that has a staple-forming surface thereon. The anvil support member is attachable to the anvil plate assembly in such a way that when the anvil assembly is coupled to the stapling head of a circular stapler, the staple-forming surface is in substantial registry with the staples supported in the stapling head. A variety of different anvil support members and anvil plate assemblies are disclosed. Various embodiments have a tissue-piercing feature.
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