Dual chambered syringe

Details Dual chambered syringe Dual chambered syringe

1986-01-30

1987-04-07

Yasko, John D.

Surgery

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

Treating material introduced into or removed from body...

604191, A61M 3700

Patent

active

046557474

ABSTRACT:
A dual chambered syringe of the type having concentric barrels. The inner barrel can be formed of a generally conventional syringe, and the outer barrel is formed of a modified conventional syringe. A sealing ring of resilient rubber spaces the two barrels apart and forms a liquid seal between the two barrels. A passageway through the sealing ring is alignable with a hole in the inner barrel to allow communication between the two chambers. A rear plate is fixed to the inner barrel and rotatable on the outer barrel so the two barrels can be rotated to align the hole with the passageway when desired.

REFERENCES:
patent: 553234 (1896-01-01), Finot
patent: 984037 (1911-02-01), Sheets
patent: 3749084 (1973-07-01), Cucchiara

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