Ostomy monitoring system and method
An ostomy bag can include one or more sensors for measuring one or more metrics. An ostomy wafer can also include one or more sensors for measuring one or more metrics. The sensors can be temperature sensors and/or capacitive sensors, for example, and the metrics can include bag fill, leakage, skin irritation, and phase of stoma output, among others.
1. An ostomy bag comprising:
two walls joined together along a seam around at least a portion of an edge of the ostomy bag, a first one of the walls configured to be placed facing skin of a user and a second one of the walls configured to face away from the user when the first wall faces the skin of the user;
an opening in the first wall, the opening configured to be disposed around a stoma of the user and to receive effluent from the stoma; and
one or more sensor layers disposed in or on one of the two walls or between the two walls of the ostomy bag, the one or more sensor layers comprising a plurality of temperature sensors and a plurality of capacitive sensors,
wherein the plurality of temperature sensors measure a temperature change due to the effluent entering the bag, and
wherein the plurality of capacitive sensors measure a capacitance change due to the effluent entering the bag,
the one or more sensors layer further comprising one or more wireless communication antennas, wherein when in use, the one or more antennas are in electrical communication with one or more antennas on an ostomy wafer configured to couple the first one of the walls of the ostomy bag to the skin of the user, and/or one or more antennas on an electronics hub configured to be coupled to the ostomy bag on the second one of the walls.
2. The ostomy bag of claim 1 , wherein the capacitive sensors are arranged in a pattern of lines at non-90 degree angles with respect to one another.
3. The ostomy bag of claim 2 , wherein the capacitive sensors are configured to detect a fill level of the effluent in the bag when the bag is in an upright position and tilted.
4. The ostomy bag of claim 1 , wherein the plurality of capacitive sensors comprise 12-48 capacitive sensors.
5. The ostomy bag of claim 1 , wherein the plurality of temperature sensors comprise 20-64 temperature sensors.
6. The ostomy bag of claim 1 , wherein an inner side of one or both of the two walls of the ostomy bag is coated with a lubricating material.
7. The ostomy bag of claim 6 , wherein the lubricating material is hydrophilic or hydrophobic.
8. The ostomy bag of claim 1 , wherein the plurality of temperature sensors and the plurality of capacitive sensors are located on one sensor layer.
9. The ostomy bag of claim 1 , further comprising the electronics hub, wherein the electronics hub is configured to receive signals from the temperature sensors or capacitive sensors.
10. The ostomy bag of claim 9 , wherein the electronics hub comprises a wireless transmitter configured to transmit the signals to a user device.
11. The ostomy bag of claim 9 , wherein the electronics hub is disposed in any of the following locations: on the second wall, in an approximate center of the second wall, at a top portion of the ostomy bag, or in a pocket formed in the first wall or the second wall.
12. The ostomy bag of claim 9 , wherein the electronics hub comprises a temperature sensor configured to measure an ambient temperature.
13. The ostomy bag of claim 1 , further comprising one or more of the following: a flex sensor, an odor sensor, a microfluidic sensor, a camera, an infrared camera, an audio sensor, or a gas sensor.
14. The ostomy bag of claim 1 , wherein the temperature sensors are arranged in a matrix circuit.
15. The ostomy bag of claim 1 , further comprising curved conductors connecting the temperature sensors.
16. The ostomy bag of claim 1 , wherein a temperature sensors cover is disposed below the opening in the first wall.
17. A medical kit comprising three groups of ostomy bags of claim 1 , a first group of ostomy bags comprising diagnostic bag, a second group of ostomy bags comprising analytics bags, and a third group of ostomy bags comprising maintenance bags.
18. An ostomy bag comprising:
two walls joined together along a seam around at least a portion of an edge of the ostomy bag, a first one of the walls configured to be placed facing skin of a user and a second one of the walls configured to face away from the user when the first wall faces the skin of the user;
an opening in the first wall, the opening configured to be disposed around a stoma of the user and to receive effluent from the stoma;
a sensor layer disposed in or on one of the two walls or between the two walls of the ostomy bag, the sensor layer comprising a plurality of temperature sensors and a plurality of capacitive sensors,
wherein the plurality of temperature sensors measure a temperature change due to the effluent entering the bag, and
wherein the plurality of capacitive sensors measure a capacitance change due to the effluent entering the bag,
the sensor layer further comprising one or more wireless communication antennas, wherein when in use, the one or more antennas are in electrical communication with one or more antennas on an ostomy wafer configured to couple the first one of the walls of the ostomy bag to the skin of the user, and/or one or more antennas on a hub configured to be coupled to the ostomy bag on the second one of the walls; and
an insulation layer disposed between the sensor layer and one of the two walls of the ostomy bag.
19. The ostomy bag of claim 18 , wherein the insulation layer is disposed between the sensor layer and each one of the two walls of the ostomy bag.
20. The ostomy bag of claim 18 , wherein the insulation layer comprises a foam or a fibrous material.
21. The ostomy bag of claim 18 , wherein the insulation layer comprises polyester or polyurethane.
22. The ostomy bag of claim 18 , wherein the insulation layer is configured to insulate the plurality of temperature sensors from heat from the user's body.
23. The ostomy bag of claim 18 , wherein the insulation layer is configured to insulate the plurality of temperature sensors from ambient signal noises.