Single axis three way selector valve for endoscopes

Details Single axis three way selector valve for endoscopes Single axis three way selector valve for endoscopes

1993-01-22

1994-09-20

Apley, Richard J.

Surgery

Truss

Perineal

604 33, 13763016, A61B 100

Patent

active

053479920

ABSTRACT:
A single axis three way valve for endoscopes. The valve has a repose, closed setting and two active settings. In one active setting, a common port to the endoscope is connected to suction, and in the other active setting it is connected to a source of irrigation liquids. The valve has two spools, one of which is connected to a finger pad for actuation, and which is spring-loaded to a closed position. The other spool is spaced from the first, and also is spring-loaded closed . The first valve is opened by initial movement. Further movement closes its port and abuts the other spool to open its respective port.

REFERENCES:
patent: 3608946 (1971-09-01), Erickson
patent: 3678959 (1972-07-01), Liposky
patent: 4261343 (1981-04-01), Ouchi et al.
patent: 4680026 (1987-07-01), Weightman et al.
patent: 4881523 (1989-11-01), Heckele
patent: 5027791 (1991-07-01), Takahashi
patent: 5034000 (1991-07-01), Freitas et al.

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