US 12,138,411 B2
Inflation of balloon in bowel irrigation system
Niels Hvid, Vedbaek (DK); and Jakob Duus Dolriis, Birkeroed (DK)
Assigned to Coloplast A/S, Humlebaek (DK)
Appl. No. 17/602,778
Filed by Coloplast A/S, Humlebaek (DK)
PCT Filed Apr. 3, 2020, PCT No. PCT/DK2020/050092
§ 371(c)(1), (2) Date Oct. 11, 2021,
PCT Pub. No. WO2020/207546, PCT Pub. Date Oct. 15, 2020.
Claims priority of application No. PA 2019 70230 (DK), filed on Apr. 11, 2019.
Prior Publication US 2022/0152366 A1, May 19, 2022
Int. Cl. A61M 3/02 (2006.01); A61M 25/10 (2013.01)
CPC A61M 3/0202 (2021.05) [A61M 3/0258 (2013.01); A61M 3/0295 (2013.01); A61M 25/10181 (2013.11); A61M 25/10184 (2013.11); A61M 2205/3355 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for inflating an inflatable balloon of a catheter for a bowel irrigation system, where the system includes:
a container adapted for containing a liquid;
a catheter adapted for insertion by a user into a rectum of the user, the catheter comprising an inflatable balloon;
a tubing connecting the container and the catheter;
a pump adapted for pumping the liquid from the container to the inflatable balloon through the tubing;
a control unit comprising a processor and a user interface;
a pressure sensor in fluid communication with an interior of the inflatable balloon;
the method comprising:
initiating an inflation process in response to inputs provided by the user to the user interface, with the inflation process comprising steps:
(i) inflating the inflatable balloon with a predefined volume of the liquid,
(ii) assessing a static pressure inside the inflatable balloon, and
(iii) generating an output from the processor based on the static pressure as assessed according to step (ii);
operating a feedback loop with the processor, with the feedback loop comprising steps selected from:
restarting the inflation process at step (i),
skipping step (i) and proceeding to assessing the static pressure according to step (ii), and
terminating the feedback loop; and
restarting the feedback loop and establishing two consecutively assessed static pressures and calculating with the processor a difference between the two consecutively assessed static pressures and controlling the feedback loop based on a difference between the two consecutively assessed static pressures.