Endoscope insertion cannula assembly

Details Endoscope insertion cannula assembly Endoscope insertion cannula assembly

1984-04-18

1986-09-09

Grieb, William H.

Surgery

Truss

Perineal

A61B 106

Patent

active

046102426

ABSTRACT:
An endoscope insertion cannula assembly including an endoscope housing and axially projecting body having an endoscope tip. An adapter is affixed about the endoscope housing, and a guide is affixed about the adapter. A spring and a seal are also affixed about the adapter. The endoscope instrument, together with the associated adapter, spring and guide, are inserted into a cannula housing. A pin on the inside of the cannula housing interacts with an angled slot on the distal surface of the guide to rotate the endoscope instrument into its proper rotational orientation. A hole in a cam surface of the spring then receives the pin on the inside of the cannula housing to control the axial orientation of the tip of the endoscope instrument with respect to the tip of the cannula tube.

REFERENCES:
patent: 1397732 (1921-11-01), Goodloe
patent: 1880551 (1932-10-01), Wappler
patent: 2584619 (1952-02-01), Rubens et al.
patent: 4188942 (1980-02-01), Fehlberg
patent: 4254762 (1981-03-01), Yoon
patent: 4550715 (1985-11-01), Santangelo et al.

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