EP-4734892-A1 - SYSTEM AND METHODS FOR DETECTING MOISTURE AND LEAKAGE

Abstract

A method for determining ostomy fluid leak is detected. The method can include a wearable device obtaining channel data of at least one channel. The wearable device may determine that the channel data is a leak value. The wearable device may determine that the at least one channel is in an activating state based on a previously recorded state and the leak value. The wearable device may determine that the at least one channel is in an active state based on the activating state and a time threshold value. The active state may include an active leak state, an active moisture state, and a prompt state. The wearable device may output the active state.

Inventors

• LATTANZI, Lauren M.
• LIDDLE, Scott E.

Assignees

• Hollister Incorporated

Dates

Publication Date

20260506

Application Date

20240628

Claims (1)

1. CLAIMS What is claimed is: 1. A method for determining ostomy fluid leak is detected comprising: obtaining channel data of at least one channel; determining that the channel data is a leak value; determining that the at least one channel is in an activating state based on a previously recorded state and the leak value; determining that the at least one channel is in an active state based on the activating state and a time threshold value, wherein the active state comprises an active leak state, an active moisture state, and a prompt state; and outputting the active state. 2. The method of claim 1, wherein determining that the channel data is the leak value comprises: determining that the channel data has a value greater than a low threshold value; and determining that the channel data has a value less than a resistance threshold value. 3. The method of claim 1 or claim 2, wherein determining the at least one channel is in an active state comprises determining a first and a second channel are in active leak states and the first and second channels are adjacent channels. 4. The method of any of the preceding claims, wherein the resistance threshold value is associated with resistance of IM ohms. 5. The method of any of preceding claims, wherein the low threshold value is associated with a resistance of 30k ohms. 6. The method of any of the preceding claims, wherein determining that the at least one channel is in the activating state based on the leak value comprises: obtaining a previously recorded state; determining that the previously recorded state is a normal state; and determining that the leak value was detected for a time greater than or equal to a leak time threshold. 7. The method of claim 6, wherein the leak time threshold comprises 15 minutes. 8. The method of any of the preceding claims, wherein determining that the at least one channel is in the active state based on the activating state and the time threshold value comprises: obtaining a leak scan delay timer, wherein the leak scan delay timer is started at when the at least one channel is in the activating state; determining that the leak scan delay timer is greater than or equal to the time threshold value; and determining that the active state is the active leak state, wherein the active leak state comprises an ostomy fluid leak. 9. The method of claim 8, wherein the time threshold value is 1 hour. 11. The method of claim 1, wherein the at least one channel is associated with a sensor associated with a barrier appliance, further including the step of determining the barrier appliance has been replaced. 12. The method of any of the preceding claims, wherein determining that the at least one channel is in the active state based on the activating state and the time threshold value comprises: obtaining a leak scan delay timer, wherein the leak scan delay timer is started at when the at least one channel is in the activating state; determining that the leak scan delay timer stops in a time less than the time threshold value; and determining that the active state is the active moisture state, wherein the active moisture state comprises moisture detected in an ostomy. 13. The method of claim 12, wherein the time threshold value is 30 minutes. 14. The method of any of the preceding claims, wherein determining that the at least one channel is in the active state based on the activating state and the time threshold value comprises: obtaining a leak scan delay timer, wherein the leak scan delay timer is started at when the at least one channel is in the activating state; determining that the leak scan delay timer stops in a time between a first and second time threshold value; and determining that the active state is a prompt state, wherein the prompt state comprises outputting a sensor state reevaluation. 15. The method of claim 14, wherein the first time threshold value comprises 30 minutes and the second time threshold value is 1 hour. 16. The method of any of the preceding claims, further comprising: obtaining an overall sensor level; determining that the overall sensor level is greater than or equal to the channel data; and determining that the at least one channel is in the active leak state. 17. The method of any of the preceding claims, wherein determining that the channel data is a leak value comprises: filtering channel data of at least one channel, wherein filtering comprises a median filter that filters out noise and prevent false leakage detection; and determining that the channel data is a leak value. 18. The method of any of the preceding claims, wherein determining that the channel data is a leak value comprises: determining, at a wearable device, that the channel data is a leak value. 19. A computing device comprising: one or more processors; a non-transitory computer-readable storage medium storing instructions executable by the one or more processors, wherein the one or more processors are configured to: obtain channel data of at least one channel; determine that the channel data is a leak value; determine that the at least one channel is in an activating state based on a previously recorded state and the leak value; determine that the at least one channel is in an active state based on the activating state and a time threshold value, wherein the active state comprises an active leak state, an active moisture state, and a prompt state; and output the active state. 20. The computing device of claim 18, wherein the one or more processors configured to determine that the channel data is the leak value are further configured to: determine that the channel data has a value greater than a low threshold value; and determine that the channel data has a value less than a resistance threshold value. 21 . The computing device of claim 19 or claim 20, wherein the resistance threshold value is IM ohms and the low threshold value is 30k ohms. 22. The computing device of any claims 19-21, wherein the one or more processors configured to determine that the at least one channel is in the activating state based on the leak value are further configured to: obtain a previously recorded state; determine that the previously recorded state is a normal state; and determine that the leak value was detected for a time greater than or equal to a leak time threshold. 22. A non-transitory computer-readable storage medium storing a plurality of programs for execution by a computing device having one or more processors, wherein the plurality of programs, when executed by the one or more processors, cause the computing device to perform acts comprising: obtaining channel data of at least one channel; determining that the channel data is a leak value; determining that the at least one channel is in an activating state based on a previously recorded state and the leak value; determining that the at least one channel is in an active state based on the activating state and a time threshold value, wherein the active state comprises an active leak state, an active moisture state, and a prompt state; and outputting the active state. 23. The non-transitory computer-readable storage medium of claim 21, wherein the plurality of programs further cause the computing device to perform: determining that the channel data has a value greater than a low threshold value; and determining that the channel data has a value less than a resistance threshold value. 24. The non-transitory computer-readable storage medium of claims 22 or claim 23, wherein the plurality of programs further cause the computing device to perform: obtaining a previously recorded state; determining that the previously recorded state is a normal state; and determining that the leak value was detected for a time greater than or equal to a leak time threshold.

Description

SYSTEM AND METHODS FOR DETECTING MOISTURE AND LEAKAGE BACKGROUND [0001] This disclosure is related to an ostomy leakage detection system. More particularly, the present disclosure pertains to systems and methods for detecting moisture and leakage in an ostomy system. [0002] An ostomy pouch system typically includes a pouch formed from opposing sidewalls defining an internal collection area, an inlet opening for receiving a stoma, and an ostomy appliance for attaching the pouch to a user. The ostomy appliance may include, for example, an ostomy barrier of a one-piece pouch system, which is attached to one of the pouch sidewalls proximate an inlet opening, or a faceplate for a two-piece pouch system configured to releasably engage a pouch, and a barrier ring. The ostomy appliance may include a skin barrier material for adhering to and sealing against a user’s peristomal skin surrounding the stoma. [0003] The ostomy appliance may be susceptible to ostomy effluent leakage, and the seal formed between the skin barrier material and the user may weaken. Oftentimes, the user may be unaware of, or cannot easily assess, an extent of weakening in the seal. Thus, the user may not become aware of a weakened seal, and consequently, the ostomy effluent may leak through to an exterior of the ostomy appliance. [0004] Leakage detection methods may be used to determine leakage in ostomy appliances. However, these methods may provide false detection of moisture when a user is in wet environments rather than when there is a leak. For example, false detection may occur when a user is showering and moisture penetrates internal sensors. [0005] Accordingly, it is desirable to provide an improved leakage detection system. BRIEF SUMMARY [0006] A system and method for detecting moisture and leakage in an ostomy system is provided according to various embodiments. [0007] In one aspect, a method for determining ostomy fluid leak is detected is provided. The method may include a wearable device obtaining channel data of at least one channel. The wearable device may determine that the channel data is a leak value. The wearable device may also determine that the at least one channel is in an activating state based on a previously recorded state and the leak value. The wearable device may further determine that the at least one channel is in an active state based on the activating state and a time threshold value. The active state may include an active leak state, an active moisture state, and a prompt state. The wearable device may also output the active state. [0008] In an embodiment, the wearable device may determine that the channel data has a value greater than a low threshold value. The wearable device may also determine that the channel data has a value less than a resistance threshold value. [0009] In an embodiment, the wearable device may determine at least one channel is an active state by determining a first and a second channel are in active leak states and the first and second channels are adjacent channels. [0010] In an embodiment, the resistance threshold value may be associated with a resistance of IM ohms. [0011] In an embodiment, the low threshold value may be associated with a resistance of 30k ohms. [0012] In an embodiment, the wearable device may obtain a previously recorded state. The wearable device may also determine that the previously recorded state is a normal state. The wearable device may further determine that the leak value was detected for a time greater than or equal to a leak time threshold. [0013] In an embodiment, the leak time threshold may include 15 minutes. [0014] In an embodiment, the wearable device may obtain a leak scan delay timer. The leak scan delay timer may be started at when the at least one channel is in the activating state. The wearable device may also determine that the leak scan delay timer is greater than or equal to the time threshold value. The wearable device may further determine that the active state is the active leak state, wherein the active leak state may include an ostomy fluid leak. [0015] In an embodiment, the time threshold value may be 1 hour. [0016] In an embodiment, the channel is associated with a sensor associated with a barrier appliance and the wearable device may determine the barrier appliance has been replaced. [0017] In an embodiment, the wearable device may obtain a leak scan delay timer. The leak scan delay timer may be started at when the at least one channel is in the activating state. The wearable device may also determine that the leak scan delay timer stops in a time less than the time threshold value. The wearable device may further determine that the active state is the active moisture state, wherein the active moisture state may include moisture detected in an ostomy. [0018] In an embodiment, the time threshold value may be 30 minutes. [0019] In an embodiment, the wearable device may obtain a leak scan delay timer. The leak scan delay timer may be