Cannula assembly with squeeze operated valve

Details Cannula assembly with squeeze operated valve Cannula assembly with squeeze operated valve

1995-06-07

1997-07-01

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

604167, 604169, A61B 1732

Patent

active

056433018

ABSTRACT:
An improved valve for cannulas and endoscopic access ports used during insufflation. A duckbill valve is provided which can accommodate the passage of endoscopic instruments such as endoscope, graspers and scissors and form a seal around the shaft of these instruments, thereby maintaining insufflation pressure. The access port housing around the duckbill valve is squeezable, so that the duckbill valve may be squeezed open by squeezing the access port housing, thereby facilitating removal of endoscopic instruments without the need to manipulate a valve fitting.

REFERENCES:
patent: 5057084 (1991-10-01), Ensminger et al.
patent: 5071411 (1991-12-01), Hillstead
patent: 5514098 (1996-05-01), Pfoslgraf et al.

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