Patent ID: 11944294
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 12:
13. A surgical stapling device comprising:
an elongate body portion having a proximal portion and a distal portion spaced from the proximal portion in a distal direction;
a shell assembly supported on the distal portion of the elongate body portion, the shell assembly including an annular cartridge positioned on a distal end of the shell assembly;
an anvil retainer assembly extending through the shell assembly and including a retainer member having a retainer body defining a first longitudinal axis that extends through the annular cartridge in the distal direction and an engagement member defining a second longitudinal axis, and a housing defining a lumen, the engagement member extending distally from the shell assembly in the distal direction and being pivotally supported on a distal portion of the retainer body, the engagement member movable between a first position in which the first and second longitudinal axes are aligned and a second position in which the first and second longitudinal axes are misaligned, the engagement member having a proximal portion received within the lumen when the engagement member is in the first position to retain the engagement member in the first position, the engagement member configured as a trocar having a tapered distal portion for piercing tissue; and
an anvil assembly including an anvil shaft and an anvil head, the anvil shaft releasably coupled to the engagement member.