A System for Anal or Stomal Irrigation, and a Method for Predicting a Temperature of an Irrigation Liquid in a Reservoir of such System

Patent metadata

Field	Value
Publication number	US-2017340804-A1
Application number	US-201515536672-A
Country	US
Kind code	A1
Filing date	Dec 17, 2015
Priority date	Dec 19, 2014
Publication date	Nov 30, 2017
Grant date	—

Abstract

A system for anal or stomal irrigation comprises a reservoir ( 102 ) for an irrigating liquid; a catheter ( 100 ) comprising a catheter tip for insertion into the rectum or stoma, a thermo sensor ( 128 ) connected to the reservoir for obtaining a measure of a temperature within the reservoir, a tubing system and/or the catheter. A control system ( 103 ) operatively connected with the thermo sensor is configured to determine a temperature within the reservoir. A method for predicting a temperature in a reservoir for irrigation liquid is also provided.

First claim

1 - 12 . (canceled)

13 . A system for anal or stomal irrigation, the system comprising:
a reservoir adapted to contain an irrigating liquid; a catheter comprising a catheter tip; a tubing system providing a conduit for the irrigating liquid between the reservoir and the catheter tip; a pump operable to pump the irrigating liquid from the reservoir to the catheter tip; a thermo-sensor connected to the reservoir and configured to measure a temperature within the reservoir; and a control system operatively connected with the thermo-sensor, the control system configured to: determine a first temperature within the reservoir before the irrigating liquid is filled into the reservoir; determine an initial change of the first temperature within the reservoir upon commencement of filling of the irrigating liquid into the reservoir; predict a future asymptotic temperature within the reservoir based on the initial change; continuously determine one of a current temperature and a rate of change of the current temperature within the reservoir; and
continuously update the prediction of the future asymptotic temperature within the reservoir based on one of the current temperature and the rate of change of the current temperature.

14 . The system of claim 13 , wherein the control system is configured to emit a warning signal if the current temperature or the future asymptotic temperature is below a predetermined lower limit or above a predetermined upper limit.

15 . The system of claim 13 , wherein the thermo-sensor is arranged within an inner wall of the reservoir.

16 . The system of claim 13 , wherein the control system is configured to predict the future asymptotic temperature within the reservoir based on the initial change and based on a thermal characteristic of the system.

17 . The system of claim 16 , wherein the thermo-sensor comprises a temperature sensitive element and a thermal conductor in contact with the temperature sensitive element, and the thermal characteristic of the system comprises a thermal characteristic of the thermal conductor.

18 . The system of claim 17 , wherein the temperature sensitive element is biased toward the thermal conductor.

19 . The system of claim 16 , wherein the thermo-sensor is mounted to a wall of the reservoir and the thermal characteristic of the system comprises a thermal characteristic of the wall of the reservoir.

20 . The system of claim 13 , wherein the system further comprises a display screen, and the control system is operatively connected to the display screen and configured to display the future asymptotic temperature.

21 . A method for predicting a temperature during anal or stomal irrigation, the method comprising:
providing an irrigation system having a reservoir adapted to contain an irrigating liquid, a catheter comprising a catheter tip, a tubing system providing a conduit for the irrigating liquid between the reservoir and the catheter tip, a pump operable to pump the irrigating liquid from the reservoir to the catheter tip, a thermo-sensor connected to the reservoir, and a control system operatively connected with the thermo-sensor; determining a temperature within the reservoir before filling the irrigating liquid into the reservoir; determining an initial change of temperature within the reservoir upon commencement of the filling of the irrigating liquid into the reservoir; predicting a future asymptotic temperature within the reservoir based on the initial change of temperature within the reservoir; continuously determining one of a current temperature and a current rate of change of temperature within the reservoir after the reservoir is filled with the irrigating liquid; and continuously updating the prediction of the future asymptotic temperature within the reservoir based on one of the current temperature and the current rate of change of temperature within the reservoir.

22 . The method of claim 21 , further comprising:
operating the control system to emit a warning signal if the temperature within the reservoir is below a predetermined lower limit or above a predetermined upper limit.

Assignees

• Coloplast As

Inventors

• Hvid Niels
• Hickmott Richard Morgan

Classifications

• A61F5/442

  having irrigation ports or means (irrigators A61M3/02) · CPC title

• A61M3/0208

  before use · CPC title

• A61M2205/3368

  Temperature · CPC title

• A61M2205/18

  with alarm · CPC title

• A61M2210/1067

  Anus · CPC title