A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/142 (2006.01) A61M 39/28 (2006.01)
Patent
CA 2064134
46811CAN2A FREE FLOW PREVENTION SYSTEM FOR INFUSION PUMP Abstract of the Disclosure A free flow prevention system for preventing undesired free flow of fluid through IV tubing (12) of the type used in an infusion pump (10). The system comprises a spring clip (18) having a base (20) and a spring arm (22) defining a channel (23) adapted to receive the IV tubing (12). The spring arm (22) is resiliently biased to a closed position in which the IV tubing (12) is squeezed by the spring clip (18) to close the lumen to prevent fluid flow, and the spring arm (22) is movable against the bias to an open position wherein the lumen of the IV tubing (12) is allowed to open to allow flow. The system also includes a clip-opening pin (34) in the infusion pump (10) for moving the spring arm (22) of the spring clip (18) from its closed position to the open position. The clip-opening pin (34) is movable relative to the spring clip (18) to move the spring arm (22) between an unloading position, in which the clip-opening pin (34) does not hold the spring arm (22) in its open position, and an operating position, in which the clip-opening pin (34) moves the spring arm (22) to its open position and holds the spring arm (22) in the open position. 7:1.12
Curran Timothy G.
Struble Kent R.
Thill Gary A.
Toycen Mark A.
Curran Timothy G.
Minnesota Mining And Manufacturing Company
Smart & Biggar
Struble Kent R.
Thill Gary A.
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