Medical instrument

Details Medical instrument Medical instrument

1985-12-24

1987-06-16

Rosenbaum, C. Fred

Surgery

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

Treating material introduced into or removed from body...

604256, A61M 2500

Patent

active

046733930

ABSTRACT:
A medical instrument having a path for receiving a bar-like member and a combination of valves provided in the path. The combination of valves comprises a first disc-like valve having a first slit open only to one of the end faces thereof and a second slit open only to the other of the end faces thereof, the first and second slits crossing each other to form a distance of intersection inside the first valve, and a second disc-like valve disposed in parallel to the first valve and having a slit opening to both end faces thereof. The slit of the second valve crosses the intersection point of the first valve so that the bar-like member passes through the slit of the second valve as well as the intersection of the first valve when it is inserted.

REFERENCES:
patent: 3853127 (1974-12-01), Spademan
patent: 4000739 (1977-01-01), Stevens
patent: 4143853 (1979-03-01), Abramson
patent: 4177814 (1979-12-01), Knepshield et al.
patent: 4244379 (1981-01-01), Smith
patent: 4412836 (1983-11-01), Brignola
patent: 4430081 (1984-02-01), Timmermans
patent: 4436519 (1984-03-01), O'Neill
patent: 4475548 (1984-10-01), Muto
patent: 4610665 (1986-09-01), Matsumoto et al.
patent: 4610674 (1986-09-01), Suzuki et al.
patent: 4626245 (1986-12-01), Weinstein

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