Controlling balloon size in bowel irrigation systems

By introducing a pressure sensor and a mechanism for dynamically adjusting the balloon size into the intestinal lavage system, the problem of increased balloon back pressure in the existing system is solved, and a safer and more comfortable intestinal lavage process is achieved.

CN113677380BActive Publication Date: 2025-09-16COLOPLAST AS
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Patent Information

Application Number
CN202080027805.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-04-11
Filing Date
2020-04-03
Publication Date
2025-09-16
Estimated Expiration
2040-04-03

AI Technical Summary

Technical Problem

Existing intestinal irrigation systems have insufficient control over the size of the inflation balloon, which may lead to increased back pressure on the rectal wall, increasing the risk of rupture and potentially causing injury.

Method used

A bowel irrigation system was designed, which includes a container, a catheter, a tube, a pump and a control unit. The system is equipped with a pressure sensor that can evaluate the pressure inside the balloon and adjust the size of the balloon by releasing fluid when the pressure exceeds the threshold.

Benefits of technology

By dynamically adjusting the size of the balloon, the back pressure on the rectal wall is reduced, the risk of balloon burst is lowered, and the safety and comfort of use are improved.

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Abstract

A bowel irrigation system is disclosed, comprising a container adapted to hold a liquid, a catheter including an inflatable balloon, tubing connecting the container and the catheter, a pump, a control unit for controlling fluid flow in the system, and a pressure sensor. The system includes means for defusing the balloon by reducing the amount of liquid within the balloon by a first amount in response to an assessment that a first pressure within the balloon is greater than a first threshold. Furthermore, a method for defusing the inflatable balloon by reducing the amount of liquid within the balloon by a first amount in response to an assessment that the first pressure within the balloon is greater than a first threshold is disclosed.
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Claims

1. A bowel lavage system capable of controlling the size of an inflated balloon during a bowel lavage procedure, the bowel lavage system comprising: - a container adapted to contain a liquid, a catheter adapted to be inserted into the rectum of a user, said catheter comprising a balloon inflated with a quantity of liquid for retaining said catheter inside said rectum, - a pipe connecting the container and the conduit, a pump adapted to inflate the balloon with a liquid amount and to pump the liquid from the container through the catheter to the rectum for lavage of the intestine, and - a control unit adapted to control the flow of fluid in the bowel irrigation system, wherein the bowel lavage system further comprises a pressure sensor adapted to assess a pressure inside the balloon, and wherein the bowel lavage system is adapted to, in response to assessing that a first pressure inside the balloon is greater than a first threshold, at least partially deflate the balloon by reducing an amount of liquid inside the balloon by a first liquid amount, thereby avoiding over-pressurization inside the balloon, wherein the bowel lavage system is adapted, after deflation, to inflate the balloon with a second amount of liquid in response to an assessment that a second pressure inside the balloon is below a second threshold, whereby the balloon regains a sufficient size to retain the catheter, wherein the first amount of liquid is greater than the second amount of liquid, thereby ensuring that the balloon does not inflate to a size larger than initially intended, The first liquid amount depends on the initial size of the balloon. And wherein the first threshold depends on the size of the inflated balloon.

2. The intestinal lavage system according to claim 1, wherein: The bowel irrigation system further comprises a valve adapted to control the amount of liquid in the balloon.

3. The intestinal lavage system according to claim 1, wherein: The pump is adapted to control the amount of fluid in the balloon.

4. The intestinal lavage system according to any one of claims 1 to 3, wherein: The bowel lavage system includes a processor having processing capabilities for determining a need for venting, the processing capabilities including obtaining the assessed first pressure from the pressure sensor, comparing the first pressure to the first threshold, and determining an output based on the comparison.

5. The intestinal lavage system according to any one of claims 1 to 3, wherein: The pressure sensor is arranged in the control unit.

Citation Information

Patent Citations

  • Wireless electronic pump design for a body cavity irrigation device

    CA3030143A1

  • A system and a method for anal and / or stomal irrigation

    CN107106757A

  • Motorized catheter system with improved inflation control

    US20180177937A1