Wet-dry syringe

Details Wet-dry syringe Wet-dry syringe

1982-04-01

1984-01-03

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

A61M 522

Patent

active

044240570

ABSTRACT:
A wet-dry syringe for combining and mixing a liquid and a solid medicament or at least two dissimilar liquid medicaments prior to the application thereof to a patient includes a first vial having liquid or solid medicament disposed between a pair of identical vial seals. A second vial functions as a piston rod and includes a pair of end seals with a liquid medicament disposed therein. One of the second vial seals includes a hollow piercing needle which when utilized to pierce one end seal of the first vial causes the medicament therein to flow into the first vial thereby mixing the medicaments prior to application to a patient by means of a needle piercing assembly which pierces the second of the first vial seals and the patient to which the mixed medicaments are to be infused. The second vial functions as a piston rod and aides in the discharge of the medicaments.

REFERENCES:
patent: 3563373 (1971-02-01), Paulson
patent: 3785379 (1974-01-01), Cohen
patent: 3884229 (1975-05-01), Raines et al.
patent: 3895633 (1975-07-01), Bartner et al.
patent: 4031892 (1977-06-01), Hurschman

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