US 11,672,563 B2
Surgical access device with rotatably actuated fixation mechanism
Astley C. Lobo, West Haven, CT (US); Oksana Buyda, East Haven, CT (US); Christopher A. Tokarz, Torrington, CT (US); Kevin Desjardin, Cheshire, CT (US); Amanda M. Adinolfi, Wallingford, CT (US); and Douglas M. Pattison, East Hartford, CT (US)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Feb. 7, 2020, as Appl. No. 16/784,662.
Prior Publication US 2021/0244437 A1, Aug. 12, 2021
Int. Cl. A61B 17/34 (2006.01)
CPC A61B 17/3423 (2013.01) [A61B 17/3439 (2013.01); A61B 2017/3488 (2013.01); A61B 2560/04 (2013.01)] 20 Claims
OG exemplary drawing
 
20. A fixation mechanism for use with a surgical access device, the fixation mechanism comprising:
a flange defining a passageway, the passageway defining a longitudinal axis;
a fixation sleeve extending distally from the flange and including a proximal portion, a radially-expandable portion, and a distal portion;
a proximal sleeve extending distally from the flange and radially surrounding the proximal portion of the fixation sleeve, a proximal portion of the proximal sleeve being fixed from longitudinal movement relative to the flange; and
a distal sleeve radially surrounding the distal portion of the fixation sleeve,
wherein rotation of the flange in a first direction about the longitudinal axis causes the radially-expandable portion of the fixation sleeve to move away from the longitudinal axis.