US 12,345,556 B2
Flow sensing device and method
Paul James Lingane, Palomar Park, CA (US)
Assigned to NVENTION LTD., London (GB)
Filed by NVENTION LTD., London (GB)
Filed on May 24, 2024, as Appl. No. 18/674,600.
Application 18/674,600 is a continuation of application No. PCT/EP2022/058611, filed on Mar. 31, 2022.
Claims priority of provisional application 63/283,460, filed on Nov. 28, 2021.
Claims priority of provisional application 63/266,997, filed on Jan. 21, 2022.
Prior Publication US 2024/0361164 A1, Oct. 31, 2024
Int. Cl. G01F 1/68 (2006.01); A61M 5/168 (2006.01); A61M 27/00 (2006.01); G01F 1/684 (2006.01); G01F 1/696 (2006.01)
CPC G01F 1/6847 (2013.01) [A61M 5/16886 (2013.01); A61M 27/00 (2013.01); G01F 1/696 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3368 (2013.01); A61M 2205/3653 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A device for sensing a fluid flow through an infusion or effusion tubing line, comprising:
a housing adapted to removably couple to an outside wall of the tubing line;
the housing accommodating a heating element and a first temperature sensor; and
a controller operatively coupled to the heating element and the first temperature sensor;
wherein the housing is adapted to hold the heating element in contact with an outside wall of the tubing line at a first contact area when the housing is coupled to the tubing line, and hold the first temperature sensor in contact with the outside wall of the tubing line at a second contact area when the housing is coupled to the tubing line, the second contact area substantially radially opposite the first contact area across the lumen of the tubing line when the housing is coupled to the tubing line, and
wherein the controller is adapted to simultaneously:
control the heating element to dissipate a substantially constant heating power; and
detect a flow parameter or condition based on an output from the first temperature sensor.