US 11,717,321 B2
Access assembly with retention mechanism
Astley C. Lobo, West Haven, CT (US); Kevin Desjardin, Prospect, CT (US); Douglas M. Pattison, East Hartford, CT (US); Christopher A. Tokarz, Torrington, CT (US); Oksana Buyda, East Haven, CT (US); and Amanda M. Adinolfi, Wallingford, CT (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Apr. 24, 2020, as Appl. No. 16/857,476.
Prior Publication US 2021/0330352 A1, Oct. 28, 2021
Int. Cl. A61B 17/34 (2006.01)
CPC A61B 17/3423 (2013.01) [A61B 2017/347 (2013.01); A61B 2017/3486 (2013.01); A61B 2017/3492 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A retention mechanism for a surgical access assembly, the retention mechanism comprising:
a planar base having a first extension extending from a first side of the planar base and a second extension extending from a second side of the planar base, the planar base defining an opening, the first extension and the second extension each including a free end, the first extension, the second extension, and the planar base being substantially coplanar in an unlocked condition;
a first locking member disposed on the free end of the first extension, the first locking member including a U-shaped body having a first free end and a second free end and a first set of opposed, inwardly facing teeth on each of the first free end and the second free end; and
a second locking member disposed on the free end of the second extension, the second locking member including a U-shaped body having a third free end and a fourth free end and a first set of opposed, outwardly facing teeth on each of the third free end and the fourth free end configured to engage the first set of opposed, inwardly facing teeth when the retention mechanism is in a locked condition, wherein the first set of opposed, inwardly facing teeth and the first set of opposed, outwardly facing teeth are configured to be spaced apart from each other when the retention mechanism is in the unlocked condition.