Moisture sensing wound dressing
A wound dressing is disclosed, the wound dressing comprising a first adhesive layer with a proximal surface configured for attachment of the wound dressing to the skin surface of a user; an absorbent core layer; an electrode assembly comprising a plurality of electrodes arranged on a distal side of the absorbent core layer, the electrode assembly comprising a plurality of sensor points distributed along a distal surface of the absorbent core layer; and a top layer on a distal side of the electrode assembly.
1 . A wound dressing system, comprising:
a wound dressing, comprising:
a first adhesive layer configured for attachment of the wound dressing to a skin surface of a user;
an absorbent core layer;
an electrode assembly comprising a plurality of electrodes arranged on a distal side of the absorbent core layer, the electrode assembly comprising a plurality of sensor points each configured to sense wetting of the distal surface of the absorbent core layer; and
a monitor interface electrically coupled to the electrode assembly; and
a monitor device, comprising a processor and a first interface for connection to the monitor interface of the wound dressing, wherein the monitor device is configured to:
obtain wound data from the wound dressing via the first interface;
determine, based on the wound data, an operating state of the wound dressing, wherein the operating state is indicative of a degree of wetting of the absorbent core layer;
when the operating state is a default operating state, transmit a default monitor signal indicative of the default operating state of the wound dressing; and
when the operating state is a first operating state, transmit a first monitor signal indicative of the first operating state of the wound dressing, wherein the first monitor signal indicates a different degree of wetting than the default monitor signal.
2 . The wound dressing system of claim 1 , wherein the wound data comprises:
first wound data from a first sensor point of a plurality of sensor points of the electrode assembly;
second wound data from a second sensor point of the plurality of sensor points; and
third wound data from a third sensor point of the plurality of sensor points.
3 . The wound dressing system of claim 2 , wherein each sensor point of the plurality of sensor points is formed by a first electrode and a second electrode of the plurality of electrodes.
4 . The wound dressing system of claim 2 , wherein:
the determined operating state includes a wetting pattern for the distal surface of the absorbent core layer; and
the wetting pattern is determined based on the first wound data, the second wound data, and the third wound data.
5 . The wound dressing system of claim 1 , wherein the wound dressing further comprises a top layer arranged on a distal side of the electrode assembly, the top layer comprising a top layer opening to permit connection between the plurality of electrodes of the electrode assembly and one or more terminals of the monitor device.
6 . The wound dressing system of claim 1 , wherein the default operating state corresponds to a situation in which there is no wetting of the absorbent core layer.
7 . The wound dressing system of claim 1 , wherein the monitor device is further configured to, when the operating state is a second operating state, transmit a second monitor signal indicative of the second operating state of the wound dressing, wherein the second monitor signal indicates a highest degree of wetting of the absorbent core layer.
8 . The wound dressing system of claim 1 , wherein the monitor device is configured to transmit the default monitor signal and the first monitor signal to an accessory device associated with the monitor device.
9 . The wound dressing system of claim 8 , wherein the monitor device transmits the first monitor signal to the accessory device for relay to a server device associated with the wound dressing system.
10 . A monitor device, comprising:
a processor; and
an interface for connection to a monitor interface of a wound dressing, wherein the monitor device is configured to:
obtain wound data from the wound dressing via the first interface;
determine, based on the wound data, an operating state of the wound dressing, wherein the operating state is indicative of a degree of wetting of the wound dressing;
when the operating state is a default operating state, transmit a default monitor signal indicative of the default operating state of the wound dressing; and
when the operating state is a first operating state, transmit a first monitor signal indicative of the first operating state of the wound dressing, wherein the first monitor signal indicates a different degree of wetting than the default monitor signal.
11 . The monitor device of claim 10 , wherein the wound data comprises:
first wound data from a first sensor point of a plurality of sensor points of the wound dressing;
second wound data from a second sensor point of the plurality of sensor points; and
third wound data from a third sensor point of the plurality of sensor points.
12 . The monitor device of claim 11 , wherein:
the determined operating state includes a wetting pattern for the wound dressing; and
the wetting pattern is determined based on the first wound data, the second wound data, and the third wound data.
13 . The monitor device of claim 10 , wherein the wound data corresponds to a plurality of sensor points that are each formed by a first electrode and a second electrode of a plurality of electrodes of the wound dressing.
14 . The monitor device of claim 10 , wherein the monitor device is configured to transmit the default monitor signal and the first monitor signal to an accessory device associated with the monitor device.
15 . The monitor device of claim 14 , wherein the monitor device transmits the first monitor signal to the accessory device for relay to a server device.
16 . A monitor device, comprising:
a processor; and
an interface for connection to a monitor interface of a wound dressing, wherein the monitor device is configured to:
obtain wound data from the wound dressing via the first interface;
determine, based on the wound data, an operating state and a wetting pattern of the wound dressing, wherein the operating state is indicative of a degree of wetting of the wound dressing;
when the operating state is a first operating state, transmit a first monitor signal indicating the first operating state of the wound dressing and including a pattern representation of the wetting pattern; and
when the operating state is a second operating state, transmit a second monitor signal indicating the second operating state of the wound dressing and including the pattern representation of the wetting pattern, wherein the second monitor signal indicates a different degree of wetting than the first monitor signal.
17 . The monitor device of claim 16 , wherein the wound data comprises:
first wound data from a first sensor point of a plurality of sensor points of the wound dressing;
second wound data from a second sensor point of the plurality of sensor points; and
third wound data from a third sensor point of the plurality of sensor points.
18 . The monitor device of claim 17 , wherein the wetting pattern is determined based on the first wound data, the second wound data, and the third wound data.
19 . The monitor device of claim 16 , wherein the monitor device is configured to transmit the first monitor signal and the second monitor signal to an accessory device associated with the monitor device.
20 . The monitor device of claim 19 , wherein the monitor device transmits the first monitor signal to the accessory device for relay to a server device.