Medical cock

Details Medical cock Medical cock

2007-06-19

2007-06-19

Lucchesi, Nicholas (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

Reexamination Certificate

active

10148360

ABSTRACT:
A sealable access stopcock includes a valve body having a switching part formed in a valve shaft thereof for switching from one flow passage to another; and a main body having an internal chamber in which the valve shaft of the valve body is rotatably fitted, and a plurality of tributary tubes each having a lumen extending therethrough, the lumen opening on a side wall of the internal chamber; the valve body being rotated to selectively bring the lumens into communication with one another through the switching part and thereby switch flow of an infusion fluid from one flow passage to another. A switching channel is provided in the form of an arcuate groove in the switching part of the valve shaft to extend along the circumferential surface thereof.

REFERENCES:
patent: 1493133 (1924-05-01), Sykora
patent: 3807691 (1974-04-01), Barley
patent: 3957082 (1976-05-01), Fuson et al.
patent: 4436116 (1984-03-01), Billeter
patent: 4865583 (1989-09-01), Tu
patent: 5122123 (1992-06-01), Vaillancourt
patent: 5144972 (1992-09-01), Dryden
patent: 5968011 (1999-10-01), Larsen et al.
patent: 30 19 426 (1981-11-01), None

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