US 11,903,611 B2
Active surgical access port filtration fittings
Steven Lathers, Littleton, CO (US); and Mahesh Krishnamoorthy, Parker, CO (US)
Assigned to Conmed Corporation, Largo, FL (US)
Filed by Conmed Corporation, Utica, NY (US)
Filed on May 5, 2021, as Appl. No. 17/308,255.
Prior Publication US 2022/0354536 A1, Nov. 10, 2022
Int. Cl. A61B 17/34 (2006.01)
CPC A61B 17/3423 (2013.01) [A61B 17/3474 (2013.01); A61B 2217/005 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A cap for a trocar assembly comprising:
a housing configured to be removably attached to a proximal portion of a trocar, wherein the housing defines an access port opening therethrough configured to be aligned for passage of a surgical instrument through the access port opening and into a main access port of the trocar, and wherein the housing defines a siphon opening for siphoning particles from the proximal portion of the trocar for filtration, wherein a plenum is defined in the housing radially outward from the access port opening with a plenum wall separating between the plenum and the access port opening, wherein the siphon opening is in fluid communication with the plenum to siphon particles out of the plenum, and wherein at least one port is defined through the plenum wall for fluid communication from the access port opening into the plenum.