US 12,232,766 B2
Surgical access device including dual lumen cannula for anchor inflation and deflation
Kevin Desjardin, Prospect, CT (US); Douglas M. Pattison, Bristol, CT (US); Oksana Buyda, Northford, CT (US); Christopher A. Tokarz, Wallingford, CT (US); Jason Mickus, Avon, CT (US); Astley C. Lobo, West 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 Jul. 1, 2022, as Appl. No. 17/856,138.
Application 17/856,138 is a continuation of application No. 16/869,773, filed on May 8, 2020, granted, now 11,376,037.
Prior Publication US 2022/0330977 A1, Oct. 20, 2022
Int. Cl. A61B 17/34 (2006.01)
CPC A61B 17/3423 (2013.01) [A61B 2017/3486 (2013.01); A61B 17/3498 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A surgical access device comprising:
a cannula including an elongated shaft having a first inner surface and an outer surface, the first inner surface defining an access lumen through the elongated shaft;
a groove defined in the outer surface of the elongated shaft, the groove having:
a first wall and a second wall, the first wall and the second wall being substantially planar and substantially parallel to one another, the second wall being disposed in opposed relation to the first wall and spaced from the first wall; and
a third wall interconnecting a first end of the first wall and a first end of the second wall, the third wall being substantially orthogonal to the first wall and the second wall and aligned along a plane that intersects the access lumen and the outer surface;
an outer tube disposed over the elongated shaft, the outer tube including a second inner surface and a portion of the second inner surface disposed in opposed relation to the first wall and the second wall and interconnecting a second end of the first wall and a second end of the second wall;
an inflation channel defined by the portion of the second inner surface and the groove; and
an expandable anchor coupled to the elongated shaft and in fluid communication with the inflation channel, the inflation channel configured to provide a pathway for fluid flow from a fluid source to the expandable anchor.