Mixing syringe

Details Mixing syringe Mixing syringe

1977-03-11

1978-09-26

Yasko, John D.

Surgery

Respiratory method or device

Ozone or ion generation

1282721, A61M 500

Patent

active

041162404

ABSTRACT:
A single barrel mixing syringe in which one material such as a liquid is stored in the bore of the syringe barrel and another material such as a powder is stored in a chamber formed in a resilient piston head which forms not only the powder containing compartment but also the seals preventing leakage of liquid from the syringe. The two chambers are separated by a wall which may be displaced in one embodiment by differential pressure during movement of the piston portion of the syringe and in another embodiment by a separate plunger which displaces the wall.

REFERENCES:
patent: 2305278 (1942-12-01), Smith
patent: 2869543 (1959-01-01), Ratcliff et al.
patent: 3477431 (1969-11-01), Walecka
patent: 3477432 (1969-11-01), Shaw
patent: 3557787 (1971-01-01), Cohen
patent: 3885710 (1975-05-01), Cohen

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