Suction catheters with improved suction control valve

Details Suction catheters with improved suction control valve Suction catheters with improved suction control valve

1979-05-10

1982-08-03

Recla, Henry J.

Surgery

Truss

Pad

128276, 128274, 433 95, A61M 2500, A61M 100

Patent

active

043423159

ABSTRACT:
Suction catheters are provided with improved suction control valves that have no open ports and that are normally closed providing advantages over the conventional control valves that are normally open. The valve comprises a resilient member having a distal end of chisel point design that is slit at the tip enabling the slit to be pinched open through an enveloping sheath to apply suction to the catheter and return to a closed position upon release of pinch pressure. The catheter may include vents to release vacuum if its distal end openings become occluded.

REFERENCES:
patent: 274447 (1883-03-01), Kennish
patent: 478872 (1892-07-01), Kirkwood
patent: 2147652 (1939-02-01), Kennison
patent: 2755060 (1956-07-01), Twyman
patent: 2969066 (1961-01-01), Holter et al.
patent: 3645497 (1972-02-01), Nyboer
patent: 3654932 (1972-04-01), Newkirk et al.
patent: 3675658 (1972-07-01), Taylor

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