Infusion unit

Details Infusion unit Infusion unit

1993-05-05

1994-11-15

Isabella, David

Surgery

Container for blood or body treating material, or means used...

Having hollow needle or spike for piercing container or...

604414, 604415, 604 82, 604 86, 604 87, 604 88, 604 89, 604 91, 604 56, 222 83, 215247, 215DIG8, 215DIG3, A61B 1900

Patent

active

053643860

ABSTRACT:
An infusion unit has a flexible container and an open-ended pipe having a first opening in communication with the container and a second opening axially opposite the first. The pipe has smaller and larger diameter portions with the smaller diameter portion located between the second opening and the larger diameter portion. An axially moveable plug is receivable within the smaller diameter portion to seal the second opening of the pipe. An axially moveable engaging member with an end for engaging the plug and a needle at the opposite end for piercing the stopper of a vial. The plug may be pushed by the engaging member from the smaller diameter section to the larger diameter section so as to permit flow through the pipe between the first and second openings to the vial and container.

REFERENCES:
patent: 3995630 (1976-12-01), van de Veerdonk
patent: 4411662 (1983-10-01), Pearson
patent: 4467588 (1984-08-01), Carveth
patent: 4581016 (1986-04-01), Gettig
patent: 4583971 (1986-04-01), Bocquet et al.
patent: 4871354 (1989-10-01), Conn et al.
patent: 4936841 (1990-06-01), Aoki et al.
patent: 5080649 (1992-01-01), Vetter
patent: 5152965 (1992-10-01), Fisk et al.
patent: 5186323 (1993-02-01), Pfleger

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