IP Library › Granted Patent US 12,357,494
Granted Patent B2
US 12,357,494 · App. 17/450,960 · Granted Jul 15, 2025

Ostomy systems and methods

Inventors: Robert Fearn (Irvine, CA); Asif Shakeel (Irvine, CA); David Ramirez-Ayala (Baldwin Park, CA); Sabrina Kaefer (Irvine, CA); Irina Dorofeeva (Riverside, CA); Naresh C. Bhavaraju (Los Angeles, CA); Jeanneane Waddell (Irvine, CA); Thomas Yuschak (Irvine, CA)
Assignee: CONVATEC TECHNOLOGIES INC.
A61F5/4404A61B5/015A61B5/6811A61F5/449A61B2562/0219
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Quick Facts
Patent No.
US 12,357,494
App. No.
17/450,960
Granted
Jul 15, 2025
Kind
B2
Abstract

A maintenance bag of an ostomy system can include fewer sensors than a diagnostic or analytic ostomy bag that is typically used for newer users. The maintenance bag can include sensors and electronics to detect fill level of the bag. The maintenance bag can also include a bag sealing mechanism that can detect drainage events and aid the user to track inventory of the bags. A wafer that can be used with an ostomy bag can include leak sensors configured to detect leak of effluent. The wafer can also include temperature sensors configured to detect inflammation. The wafer can further include a convex interface for better fit with certain users.

Claims (9)

1. An ostomy wafer configured to couple an ostomy bag to a user, the wafer comprising:

a sensor layer comprising a plurality of temperature sensors surrounding a stoma opening of the wafer, wherein the plurality of temperature sensors are configured to be separated into four quadrants; and

a hardware processor, the hardware processor configured to detect inflammation or fever, or both based at least in part on signals from one or more of the plurality of temperature sensors, wherein the hardware processor is configured to determine an average temperature of the temperature sensors in a same quadrant.

2. The ostomy wafer of claim 1 , wherein the hardware processor is further configured to calculate a difference between a short-term average temperature and a long-term average temperature of the temperature sensors in the same quadrant.

3. The ostomy wafer of claim 2 , wherein the hardware processor is further configured to calculate a rate of change of a difference between the short-term and long-term average temperatures.

4. The ostomy wafer of claim 1 , wherein the sensor layer comprises at least in part a ring-shaped main body and a plurality of fingers extending radially inwardly from the main body, the plurality of temperature sensors located on the plurality of fingers.

5. The ostomy wafer of claim 1 , further comprising an accelerometer.

6. The ostomy wafer of claim 5 , wherein the hardware processor is further configured to determine a location of inflammation based on at least one signal from at least one of the temperature sensors and data from the accelerometer.

7. The ostomy wafer of claim 1 , wherein the hardware processor is configured to detect fever in response to detection of a temperature growth across all four quadrants.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 31, 2023
From: CONVATEC INC.
To: CONVATEC TECHNOLOGIES INC.
Reel/Frame 062550/0302 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 20, 2023
From: 11 HEALTH AND TECHNOLOGIES LIMITED
To: CONVATEC, INC.
Reel/Frame 062438/0344 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 17, 2022
From: 11 HEALTH AND TECHNOLOGIES INC.
To: 11 HEALTH AND TECHNOLOGIES LIMITED
Reel/Frame 061817/0339 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 19, 2022
From: FEARN, ROBERT; SHAKEEL, ASIF; RAMIREZ-AYALA, DAVID; KAEFER, SABRINA; DOROFEEVA, IRINA; BHAVARAJU, NARESH C.; WADDELL, JEANNEANE; YUSCHAK, THOMAS
To: 11 HEALTH AND TECHNOLOGIES INC.
Reel/Frame 061135/0306 →
Continuity (2)
Provisional Application 63092437 · Oct 15, 2020
Related Publication 20220117771A1 · Apr 21, 2022
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