Two compartment mixing syringe

Details Two compartment mixing syringe Two compartment mixing syringe

1986-08-11

1987-09-15

Truluck, Dalton L.

Surgery

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

Treating material introduced into or removed from body...

604220, A61M 500

Patent

active

046937064

ABSTRACT:
A mixing syringe having an inner cylindrical barrel open at one end, and closed at its other end by a thin, tough, membrane bonded thereto. The barrel may contain a first liquid. A plunger inserted in the barrel has a sliding, sealing head which applies pressure to the liquid to rupture the membrane when the plunger is advanced. The barrel is slidably inserted in an open end of an outer barrel in sealing relationship therewith, and has a tip on the other end of the outer barrel. The outer barrel contains a liquid or other material to mix with the first liquid when the membrane is ruptured. The mixture is discharged from the outer barrel via the tip when the inner barrel is advanced axially in the outer barrel.

REFERENCES:
patent: 2619087 (1952-11-01), Oclassen et al.
patent: 2724385 (1955-11-01), Lockhart
patent: 3255752 (1966-06-01), Dick
patent: 3340873 (1967-09-01), Solowey
patent: 3354882 (1967-11-01), Coanda
patent: 3739947 (1973-06-01), Baumann et al.
patent: 4171698 (1979-10-01), Genese
patent: 4412836 (1983-11-01), Brignola

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