Self-seating flapper valve for insufflation cannula assembly

Details Self-seating flapper valve for insufflation cannula assembly Self-seating flapper valve for insufflation cannula assembly

A - Human Necessities

61

B

128/127, 251/26

A61B 17/34 (2006.01)

Patent

CA 1329349

-20- ABSTRACT OF THE DISCLOSURE A cannula assembly for use in conjunction with insufflatory surgical techniques includes a cannula, a housing mounted on one end of the cannula, and a flapper valve mounted in the housing. The flapper valve includes a valve seat which is situated at an opening formed in the housing, a valve plug which is adapted to engage the valve seat to form a substantially gas tight seal with the valve seat, and a support plate on which the valve plug is mounted and which is biased to pivot the plug into and out of engagement with the valve seat. The valve plug is movable on the support plate so as to be self-aligning with the valve seat when the plug and valve are in engagement.

581662

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