Auto-flushing medical fluid injection system

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...

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604 89, 604207, 128762, 128760, A61M 500

Patent

active

056432186

ABSTRACT:
A syringe for the sequential withdrawal of a first liquid and a second liquid. The syringe has a barrel, a proximal piston moveable along the barrel to define a variable volume chamber intermediate the piston and the end of the barrel, and a distal chamber divider piston for separating the variable volume chamber into primary and secondary reservoirs. A flow channel is defined along the syringe for providing flow connection between the primary and secondary reservoirs. An element links the two pistons so that as the proximal piston is moved away from the distal piston, the first liquid enters the first reservoir and thereafter the second liquid enters the secondary reservoir.

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