Mixing syringe

Details Mixing syringe Mixing syringe

1976-06-07

1977-08-16

Yasko, John D.

Surgery

Respiratory method or device

Ozone or ion generation

1282721, A61M 500

Patent

active

040419452

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: 2313483 (1943-03-01), Smith
patent: 2590900 (1952-04-01), Sommerstein
patent: 2869543 (1959-01-01), Ratcliff et al.
patent: 3380451 (1968-04-01), Porter et al.
patent: 3477432 (1969-11-01), Shaw
patent: 3779371 (1973-12-01), Rovinski
patent: 3838689 (1974-10-01), Cohen

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