Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1993-11-19
1994-12-13
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
604127, A61M 500
Patent
active
053725913
ABSTRACT:
An improved solution dispensing device for intravenous drip comprises a container of tubular construction and having at the top thereof a connecting needle piercing through the mouth of a solution bottle. The container is connected at the bottom thereof with one end of a solution transporting tube having another end that is connected with a hypodermic needle. A stopping element is disposed in the container such that the stopping element can be caused to rise or descend in accordance with the solution level. The solution transporting tube has an extension segment that is disposed in the container. The stopping element is provided with a recessed portion corresponding in location to the extension segment. As the stopping element is caused to descend so that the extension segment is enclosed by the recessed portion, a compartment is formed between the outer wall of the extension segment and the inner wall of the recessed portion. The compartment is used to contain the solution, which acts to seal off the open end of the extension segment of the solution transporting tube.
REFERENCES:
patent: 2844147 (1958-07-01), Beacham
patent: 3216419 (1965-11-01), Scislowicz
Jeng Hwang-Roan
Yang Jiune-Piin
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