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.

Title
ANVIL ASSEMBLIES WITH COLLAPSIBLE FRAMES FOR CIRCULAR STAPLERS
Application Number
15/972344
Publication Number
20180325508 (A1)
Application Date
May 7, 2018
Publication Date
November 15, 2018
IPC
A61B 17/34
A61B 17/00
A61B 17/115
A61B 17/072
A61B 17/068
A61B 17/02
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