Surgery – Means for introducing or removing material from body for... – Material introduced into and removed from body through...
Patent
1987-03-09
1989-02-28
Yasko, John D.
Surgery
Means for introducing or removing material from body for...
Material introduced into and removed from body through...
604164, A61M 300
Patent
active
048081566
ABSTRACT:
A cannular instrument having a pair of cannulas and a pair of needles that are slidably disposed through the cannulas such that the ends of the needle extend beyond the associated ends of the cannulas. A method for inserting a cannula instrument a blood stream of an artery which includes adjusting and rotating the needles such that a facial plane on each of the beveled ends of the needles generally face in the same direction. The beveled ends of each needle and the accompanying associated ends of the two cannulas are situated within the artery and the needles may be withdrawn in order to connect to the cannulas intravenous bags holding medicinal fluids.
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patent: 4531937 (1985-07-01), Yates
patent: 4540402 (1985-09-01), Aigner
patent: 4568329 (1986-02-01), Mahurkar
patent: 4585435 (1986-04-01), Vaillancourt
patent: 4619643 (1986-10-01), Bai
patent: 4682978 (1987-07-01), Martin
Carpenter John Wade
Yasko John D.
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