US 12,246,158 B2
Control valve for a liquid circulating in a flexible tube
Adrien Fiorino, Nantes (FR); and Sylvain Picot, Caluire Et Cuire (FR)
Assigned to I-SEP, (FR)
Appl. No. 17/776,097
Filed by I-SEP, Nantes (FR)
PCT Filed Nov. 10, 2020, PCT No. PCT/FR2020/052057
§ 371(c)(1), (2) Date May 11, 2022,
PCT Pub. No. WO2021/094685, PCT Pub. Date May 20, 2021.
Claims priority of application No. 1912617 (FR), filed on Nov. 12, 2019.
Prior Publication US 2022/0378987 A1, Dec. 1, 2022
Int. Cl. A61M 39/28 (2006.01); A61M 1/02 (2006.01); F16K 7/06 (2006.01)
CPC A61M 39/285 (2013.01) [F16K 7/065 (2013.01); A61M 1/02 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An automatic valve for regulating a flow rate of liquid intended to circulate in a flexible tube, the regulating valve comprising:
a valve base,
a cam system arranged to be rotationally driven by a drive shaft of a motor, the cam system being moveably mounted on the valve base to rotate around an axis of rotation (B),
a bearing part translationally mounted on the valve base, the bearing part being arranged to be translationally moved with respect to the valve base along a direction of translation (Y) following a rotational movement of the cam system, the bearing part comprising a compression portion,
an abutment part mounted on the valve base and positioned opposite the compression portion along the direction of translation (Y), such that the abutment part and the bearing part define between them a receiving space extending along a longitudinal direction (L) and intended to receive a flexible tube, the translation of the bearing part displacing the compression portion along the direction of translation (Y), in order to modify a dimension along the direction of translation of the receiving space between the bearing part and the abutment part,
wherein the bearing part is translationally moveable along the direction of translation (Y) between the following two positions:
a close together position, wherein the dimension of the receiving space along the direction of translation (Y) is equal to a first distance,
a spaced apart position, wherein the dimension of the receiving space along the direction of translation (Y) is equal to a second distance strictly greater than the first distance,
the bearing part being configured to be stabilised in any intermediate position situated between the close together position and the spaced apart position,
the valve further comprising a magnet integral with the bearing part or with the valve base, and a magnetic sensor integral respectively with the valve base or with the bearing part, the magnetic sensor being arranged to detect a magnetic field generated by the magnet whatever the position of the bearing part, and
the valve further comprising a cover intended to obstruct the receiving space as a function of the position of the bearing part.