Syringe

Details Syringe Syringe

1987-02-25

1989-08-29

Pellegrino, Stephen C.

Surgery

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

Treating material introduced into or removed from body...

604191, A61M 300

Patent

active

048613355

ABSTRACT:
A syringe provides for the isolated storage of two components of a medicament until immediately prior to use of the syringe. One liquid component is stored in a collapsible chamber of a sealed capsule within a hollow plunger stem of the syringe, and the other component beneath the head of the plunger. A double headed needle arrangement between the head and stem of the plunger is caused to penetrate the plunger head and the capsule when the syringe is to be used so that the plunger may be drawn back to exhaust the contents of the capsule chamber into admixture with the component stored beneath the head of the plunger. Communication through the double headed needle arrangement is then interrupted before the plunger is used to eject the syringe contents through an external needle fitted to the syringe.

REFERENCES:
patent: 2684068 (1954-07-01), Orens
patent: 3477432 (1969-11-01), Shaw
patent: 3489147 (1970-01-01), Shaw
patent: 3636950 (1972-01-01), Gomez et al.
patent: 3724460 (1973-04-01), Gomez et al.
patent: 4171698 (1979-10-01), Genese
patent: 4405317 (1983-09-01), Case
patent: 4581016 (1986-04-01), Gettig

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