US 11,944,294 B2
Circular stapling device with articulating anvil retainer assembly
Justin Williams, Southbury, CT (US); and Stephen Paul, East Hartford, CT (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Sep. 20, 2022, as Appl. No. 17/948,592.
Application 17/948,592 is a continuation of application No. 15/665,542, filed on Aug. 1, 2017, granted, now 11,452,522, issued on Sep. 27, 2022.
Claims priority of provisional application 62/375,176, filed on Aug. 15, 2016.
Prior Publication US 2023/0012329 A1, Jan. 12, 2023
Int. Cl. A61B 17/068 (2006.01); A61B 17/072 (2006.01); A61B 17/115 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/068 (2013.01) [A61B 17/07292 (2013.01); A61B 17/1155 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/07271 (2013.01); A61B 17/1152 (2013.01)] 20 Claims
OG exemplary drawing
 
19. An anvil retainer assembly comprising:
a retainer member having a retainer body defining a first longitudinal axis and an engagement member defining a second longitudinal axis, and a housing defining a third longitudinal axis and a lumen, the retainer body having a distal portion, the engagement member configured as a trocar having a tapered distal portion for piercing tissue, the engagement member extending distally from the lumen of the housing and being pivotally supported on the distal portion of the retainer body, the engagement member movable between a first position in which the first second, and third longitudinal axes are aligned and a second position in which the first and third longitudinal axes are misaligned with the second longitudinal axis, the engagement member having a proximal portion received within the lumen of the housing when the engagement member is in the first position to retain the engagement member in the first position.