Vented drip chamber for use with a syringe

Details Vented drip chamber for use with a syringe Vented drip chamber for use with a syringe

1984-07-26

1986-03-18

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604241, A61M 516

Patent

active

045765944

ABSTRACT:
A vented drip chamber, threadably engageable with a fluid filled hypodermic syringe, comprises an adapter having dual passageways. A first passageway allows fluid communication between the syringe and the drip chamber while the second passageway provides an air vent from outside the drip chamber to the syringe. The second passageway further comprises a cannula which extends into the fluid upon attachment of the drip chamber with the syringe. A ball valve which is disposed in the second passageway allows air to flow into the syringe to replace the dispensed fluid, but does not allow fluid to flow from the syringe through the second passageway.

REFERENCES:
patent: 2833281 (1958-05-01), Krug
patent: 3316908 (1967-05-01), Burke
patent: 3323774 (1967-06-01), Wilson
patent: 3359977 (1967-12-01), Burke
patent: 3542024 (1970-11-01), Burke
patent: 3542240 (1970-11-01), Solowey
patent: 3795558 (1974-03-01), Dabney et al.
patent: 3797521 (1974-03-01), King
patent: 3822700 (1974-07-01), Pennington
patent: 3938520 (1976-02-01), Scislowicz et al.
patent: 4262671 (1981-04-01), Kersten
Advertising Brochure-Quest Medical, Inc., 1984.

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