US 12,251,132 B2
Valve mechanism for a trocar, and a trocar
John O'Dea, Galway (IE); and Aoife O'Dea, Galway (IE)
Assigned to Palliare Limited, Galway (IE)
Appl. No. 17/295,557
Filed by PALLIARE LIMITED, Galway (IE)
PCT Filed Nov. 22, 2019, PCT No. PCT/IE2019/000010
§ 371(c)(1), (2) Date May 20, 2021,
PCT Pub. No. WO2020/105022, PCT Pub. Date May 28, 2020.
Claims priority of application No. S2018/0459 (IE), filed on Nov. 22, 2018.
Prior Publication US 2022/0047302 A1, Feb. 17, 2022
Int. Cl. A61B 17/34 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/3462 (2013.01) [A61B 17/3423 (2013.01); A61B 17/3498 (2013.01); A61B 2017/00017 (2013.01); A61B 2017/00022 (2013.01); A61B 2017/3464 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A valve mechanism for a trocar, the valve mechanism comprising:
a housing,
an instrument bore extending through the housing for accommodating an instrument therethrough,
a valve located in the housing operable between a closed state closing the instrument bore and an open state providing access through the instrument bore,
a detecting element configured to detect an instrument entering or in the instrument bore upstream of the valve,
an operating element responsive to the detecting element detecting an instrument for operating the valve between the closed state and the open state, and
a first urging element configured to act on the operating element for urging the valve into the closed state.