Liquid sensing in ostomy appliance
AssigneeColoplast A/S
InventorJesper Kenneth OLSEN
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Abstract
An ostomy system comprising a monitor device and an ostomy appliance is disclosed, the ostomy appliance comprising a sensor assembly comprising three or more electrodes including a first, second and third electrode. The first electrode and the second electrode form a primary sensor, and the first electrode and the third electrode form a secondary sensor. The monitor device is configured to determine a first value of an electrical quantity of the primary sensor, to determine a second value of the electrical quantity of the secondary sensor, and to determine an operating state of the ostomy appliance based on at least the absolute difference between the first value and the second value. Also disclosed is a corresponding method and a monitor device.
Claims15
An ostomy system, comprising:
- an ostomy appliance comprising a sensor assembly, wherein the sensor assembly comprises a stomal opening with a center point and three or more electrodes including a first electrode arranged at a first radial distance from the center point, a second electrode arranged at a second radial distance from the center point, and a third electrode arranged at a third radial distance from the center point, wherein the second radial distance is greater than the first radial distance and the third radial distance is greater than the second radial distance, wherein the first electrode and the second electrode form a primary sensor and wherein the first electrode and the third electrode form a secondary sensor;
- and
- a monitor device comprising a processor, a memory connected to the processor, and a first interface connected to the processor and configured for connecting the monitor device to the sensor assembly, and wherein the monitor device is configured to:
- determine a first value of an electrical quantity for the primary sensor;
- determine a second value of the electrical quantity for the secondary sensor;
- and
- determine an operating state of the ostomy appliance based on at least the absolute difference between the first value and the second value.
A method, performed in a monitor device of an ostomy system, for determining an operating state of an ostomy appliance of the ostomy system;
- the ostomy appliance comprising a sensor assembly having a stomal opening with a center point, wherein the sensor assembly comprises three or more electrodes including a first electrode arranged at a first radial distance from the center point, a second electrode arranged at a second radial distance from the center point, and a third electrode arranged at a third radial distance from the center point, wherein the second radial distance is greater than the first radial distance and the third radial distance is greater than the second radial distance, wherein the first electrode and the second electrode form a primary sensor and wherein the first electrode and the third electrode form a secondary sensor;
- wherein the monitor device comprises a processor, a memory connected to the processor, and a first interface connected to the processor, the first interface being configured for connecting the monitor device to the sensor assembly;
- wherein the method comprises the steps of:
- determining a first value of an electrical quantity for the primary sensor;
- determining a second value of the electrical quantity for the secondary sensor;
- and
- determining an operating state of the ostomy appliance based on at least the absolute difference between the first value and the second value.
A monitor device of an ostomy system comprising a sensor assembly, wherein the monitor device is configured to:
- determine a first value of an electrical quantity for a primary sensor formed by a first electrode and a second electrode of the sensor assembly;
- determine a second value of the electrical quantity for a secondary sensor formed by the first electrode and a third electrode of the sensor assembly;
- and
- determine an operating state of the ostomy appliance based on at least the absolute difference between the first value and the second value.
Dependencies are inferred from the claim text.