Continuous liquid infusion device

Details Continuous liquid infusion device Continuous liquid infusion device

2005-05-10

2005-05-10

Casler, Brian L. (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

C604S140000, C604S141000, C604S228000

Reexamination Certificate

active

06890320

ABSTRACT:
The invention provides a continuous liquid infusion device in which liquid syringe and a negative pressure cylinder are separable to use a liquid infused syringe. This continuous liquid infusion device includes: a negative pressure cylinder having a barrel part including an open/close valve at its tip and leg parts extending from a base end thereof; a piston air-tightly fitted in the barrel part and connected to a base end of an outer case covering an outer surface of the barrel part, through slots between the leg parts; a liquid syringe having a liquid infusion/discharge port at its tip, and a base end screwed with the outer case so that the liquid syringe is positioned back to back with the negative pressure cylinder; and a movable unit liquid-tightly fitted to an inner circumference of the tip of the liquid syringe and abutting against a base end of the leg parts.

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