Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1989-02-17
1990-04-10
Pellegrino, Stephen C.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
137605, 2511491, 604249, A61M 500, A61M 3700
Patent
active
049156870
ABSTRACT:
A needleless injection port arrangement (10) for intravenous fluid systems wherein the arrangement (10) includes a valving unit (12) disposed in a valve housing unit (11) having a dual port upper valve housing member (13): wherein, the valving unit (12) includes a valve head member (50) mounted on a resilient biasing member (40) to control the introduction of medicant fluids through a medicant fluid port (18) formed in the upper valve housing member (13).
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patent: 2999499 (1961-09-01), Willet
patent: 3276472 (1966-10-01), Jinkens et al.
patent: 3416567 (1968-12-01), Von Dardel
patent: 3994293 (1976-11-01), Ferro
patent: 4252116 (1981-02-01), Genese et al.
patent: 4601701 (1986-07-01), Mueller, Jr.
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