US 11,730,481 B2
Assemblies for retaining a trocar assembly
Ramiro D. Cabrera, Cheshire, CT (US); and Patrick Mozdzierz, Glastonbury, CT (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Dec. 2, 2020, as Appl. No. 17/109,718.
Claims priority of provisional application 62/957,380, filed on Jan. 6, 2020.
Prior Publication US 2021/0204950 A1, Jul. 8, 2021
Int. Cl. A61B 17/34 (2006.01); A61B 17/115 (2006.01); A61B 17/11 (2006.01)
CPC A61B 17/1155 (2013.01) [A61B 17/3417 (2013.01); A61B 2017/1132 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A trocar retaining assembly configured to releasably retain a trocar assembly relative to an elongated body portion of a surgical stapling instrument, the trocar retaining assembly comprising:
a housing assembly defining a trocar aperture, the trocar aperture defining a longitudinal axis and configured to slidingly receive a portion of a trocar assembly; and
a button assembly including a first leg extending from a backspan, a portion of the first leg including a first curved part defining a first arc length and a second curved part defining a second arc length, the first leg movable relative to the housing assembly between a first position where the first curved part is coaxial with the longitudinal axis, and a second position where the second curved part is coaxial with the longitudinal axis,
wherein the trocar assembly is hindered from translating longitudinally relative to the housing assembly when the first leg is in its second position, the trocar assembly is longitudinally translatable relative to the housing assembly when the first leg is in its first position, and the second curved part of the first leg is configured to selectively contact a longitudinally-translatable portion of the trocar assembly.