Multi-chamber vial

Details Multi-chamber vial Multi-chamber vial

1990-11-19

1992-05-19

Rosenbaum, C. Fred

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 87, A61M 524, A61M 3700

Patent

active

051144115

ABSTRACT:
A vial (2) has first and second chambers (56, 54) initially separated by a rupturable barrier (20). The first chamber is a variable volume chamber defined by a cylinder (18), the rupturable barrier at the second end (19) of the cylinder and a piston (14). The second chamber is created by a telescoping container (22) mounted to a second end of the cylinder. The chambers are telescopically collapsed causing fluid pressure in the second chamber to rupture the barrier so the components mix in the first chamber. The piston is driven through the cylinder from pre-mix to post-mix positions by the liquid from the second chamber. This dislodges a safety shield at the first end of the cylinder to expose the piston. The mixed contents of the first, variable volume chamber are removed by inserting a needle cannula through the now exposed piston; aspiration of the mixed contents take place without the introduction of air into the first chamber since the piston moves back down the cylinder as the contents are removed. A spike adapter can be used to transfer the contents of the vial to a conventional IV bag.

REFERENCES:
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patent: 3923059 (1975-12-01), Ogle
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patent: 4529403 (1985-07-01), Kamstra
patent: 4589879 (1986-05-01), Pearson
patent: 4624667 (1986-11-01), Rutnarak
patent: 4713062 (1987-12-01), Stevanato
patent: 4781679 (1988-11-01), Larkin
patent: 4969883 (1990-11-01), Gilbert
Product literature for Mix-O-Vial of the Upjohn Company.
Advertising flyer for the ADD-Vantage.RTM. System of Abbot Laboratories, Mar. 1990.
Packaging, "Packaging Breakthrough Yields Savings for Hospitals," Feb. 1986.
Advertising flyer entitled "Kendall McGaw Introduces EXCEL.RTM.".
ADD-Vantage.RTM. wall chart, Abbott Laboratories, Dec., 1989.
Photocopy of conventional IV bag made by Travenol Laboratories, Deerfield, Ill.

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