Storage, mixing and filtering receptacle for syringe

Details Storage, mixing and filtering receptacle for syringe Storage, mixing and filtering receptacle for syringe

Filed on

1982-05-26

Date issued

1983-08-30

Examiner

Yasko, John D.

Patent Class

Surgery

SubClass

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

SubSubClass

Treating material introduced into or removed from body...

Other Related Categories

604190, A61M 500

Type

Patent

Status

active

Patent number

044014325

Description

ABSTRACT:
This invention pertains to an add-on device used with a conventional syringe having an outer barrel with a hollow needle mounted thereon. A tubular sheath has a first end slidably and removably mounted on this barrel with a second end retaining a flexible cap portion. Within this flexible cap end, two ampules are carried and are arranged as peas-in-a-pod with both ampules made of rigid thin impervious material such as glass and/or plastic. The inner ampule retains the concentrate, usually powder, and the outer ampule contains the fluid. A filter, such as stacked disks, is interposed between the distal end of the hollow needle and the ampules. The flexible cap end is manipulated to cause the two ampules to be broken after which the contained components are mixed by shaking and this mixture is drawn by aspiration through the filter into the syringe. The add-on device is then discarded and the now filled syringe is used in the conventional manner. Three variations of this device are shown with each arrangement providing the contemplated breaking availability and filtering capability.

REFERENCES:
patent: 1744893 (1930-01-01), Hein
patent: 2907329 (1959-10-01), Cohen
patent: 3610297 (1971-10-01), Raaf et al.
patent: 4060082 (1977-11-01), Lindberg et al.
patent: 4306554 (1981-12-01), Schwartz et al.

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