Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1989-10-20
1991-05-21
Pellegrino, Stephen C.
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
251 7, A61M 500
Patent
active
050171925
ABSTRACT:
A free flow prevention system for preventing free flow of fluid through IV tubing when the tubing is disconnected from an infusion pump. A flexible clamp is provided having a pair of clamping arms, which define a variable width slot for receiving the IV tubing. The IV tubing may be moved along the slot between a first position wherein the width of the slot is sufficient to permit the clamp to be positioned longitudinally along the IV tubing, and a second position wherein the width of the slot is normally less than the width of the slot at the first position. The clamping arms are resiliently biased to a closed position wherein the IV tubing is squeezed when in its second position to close the lumen to prevent fluid flow. A clamp-receiving passageway and clamp-opening wedge are provided on the infusion pump. The clamp-opening wedge is movable relative to a clamp received in the passageway to an operating position, wherein the wedge moves the arms of the flexible clamp against their bias to an open position wherein the lumen of the IV tubing is allowed to open to permit fluid flow during operation of the pump.
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3M Flyer "AVI200A Infusion Pump: The Advanced Technology Volumetric Infusion Pump" IMED Corporation Brochure Gemini.TM. Administration Sets.
Dodge Larry H.
Stone Stanford C.
Bauer Stephen W.
Griswold Gary L.
Kirn Walter N.
Lelois Ralph A.
Minnesota Mining and Manufacturing Company
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