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Simplified device for regulating the flow rate of medical liquid directed towards a patient

  • US 20030097097A1
  • Filed: 10/02/2002
  • Published: 05/22/2003
  • Est. Priority Date: 11/20/2001
  • Status: Active Grant
First Claim
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1. A device for regulating the flow rate of a liquid in a medical infusion line, said device (1) comprising a body (2) presenting elements (40, 59) for its connection to a first and to a second conduit, the first conduit being connected to a container of said liquid and the second being directed to a patient to whom the liquid is to be administered, the body (2) presenting a plurality of parts (3, 4) connected together but torsionally free, the relative movement of these parts about a common axis of rotation (K) enabling flow rate variation means (54, 55, 67), associated with the body (2), to modify the flow rate of the liquid fed to the patient, characterised in that the flow rate variation means are a plurality of recesses (54, 55, 67) provided in a single part (4) of said body (2), a first recess (54) being annular and of constant depth, and at least one second recess (55, 67) being in the form of a broken ring and of variable depth, said recesses (54, 55, 67) being concentric, communication means (52, 53) being provided above said plurality of recesses and associated with a different part (3) of said body (2), to connect at least said first recess (54) to the second, one chosen from said first recess (54) and second recess (55) being connected to the first conduit and the other of said first and second recess (54, 57) being connected to the second conduit of the medical line.

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