Flow control device for use with an intravenous set

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

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Details

604 90, 604127, 604256, 137403, 137433, 137451, A61M 500

Patent

active

057229619

ABSTRACT:
Disclosed is a flow control device for use with an intravenous set to control the flow of medicinal fluid in a barrel into patient's body. The flow control device comprises a floating member capable of being supported for floating by the buoyancy of the medicinal fluid and having a first hollowed portion facing upwards so that the hollowed portion can contain medicinal fluid and a second hollowed portion facing downwards. A linkage bar is secured to the floating member by insertion into the second hollowed portion. A membranous member is coupled via the linkage bar to the floating member such that the membranous member moves along with the floating member. With the arrangement, as the barrel of the intravenous set is filled with a volume of medicinal fluid, the buoyancy of the medicinal fluid floats the floating member in such a way that the membranous member is brought away from the outlet of the intravenous set, thereby allowing the medicinal fluid to flow to the outlet; and as the medicinal fluid is gradually reduced in level, the floating member is lowered in level thereby and when the membranous member reaches at the bottom of the barrel, the membranous member blocks the outlet so as to stop the injection.

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