Suction systems

Details Suction systems Suction systems

1992-10-23

1995-05-30

Green, Randall L.

Surgery

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

Treating material introduced into or removed from body...

604118, 604163, 604171, 604246, 604264, 604317, 604319, 604326, 604902, A61M 100

Patent

active

054197694

ABSTRACT:
A medico-surgical suction system has a container with an outlet connected to a vacuum pump and an inlet connected to a suction catheter via a dual-lumen tube assembly one end of which is connected to the container and the other end of which is has a suction control and a coupling for the catheter. A valve located in the outlet of the container is connected to the suction control via a minor lumen of the tube. A side lumen enables the vacuum pump to apply reduced pressure to one end of the valve which holds the valve off against the action of a spring. Actuation of the suction control allows air to flow to the valve via the minor lumen so that the effect of the reduced pressure is overcome and the spring opens the valve.

REFERENCES:
patent: 3780738 (1973-12-01), Deaton
patent: 3911919 (1975-10-01), Raitto
patent: 3991762 (1976-11-01), Radford
patent: 4036232 (1977-07-01), Genese
patent: 4468216 (1984-08-01), Muto
patent: 4502503 (1985-03-01), Lester
patent: 4526573 (1985-07-01), Lester et al.
patent: 4569344 (1986-02-01), Palmer
patent: 4680026 (1987-07-01), Weightman et al.
patent: 5236425 (1993-08-01), Kurtz et al.

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