Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1993-03-01
1993-09-07
Hirsch, Paul J.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604122, 604127, A61M 514
Patent
active
052424243
ABSTRACT:
A device for use in controlling the intravenous drip comprises a cap and a dripping vessel. The cap is connected with a solution bottle of the intravenous drip by means of an upper connecting tube while the dripping vessel is in communication with a hypodermic needle by means of a lower connecting tube. The cap is provided thereon with a gas column having therein a gas duct in which a press rod is movably disposed. The gas in the upper connecting tube and the dripping vessel can be let out rapidly by means of the press rod.
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patent: 3776229 (1973-12-01), McPhee
patent: 3965895 (1976-06-01), Dabney
patent: 4175558 (1979-11-01), Hess, III et al.
patent: 4332247 (1982-06-01), Mittleman
patent: 4959053 (1990-09-01), Jang
patent: 5031654 (1991-07-01), Kobayashi
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