The present disclosure provides a method, performed in an accessory device, for communicating a leakage state of an ostomy appliance, wherein the accessory device comprises an interface configured to communicate with one or more devices of an ostomy system, the one or more devices comprising a monitor device, and/or the ostomy appliance configured to be placed on a skin surface of a user. The method comprises obtaining monitor data from the one or more devices, the monitor data being indicative of presence of fluid at a proximal side of a first adhesive layer of the ostomy appliance towards the skin surface; determining a leakage state at the proximal side of the first adhesive layer of the ostomy appliance based on the monitor data, and communicating the leakage state of the ostomy appliance via the interface.

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.

Systems, apparatuses, and methods for detecting and quantifying a fluid are described herein. In some examples, a sensor apparatus is used to absorb discharged fluid (or other fluid present). The sensor apparatus includes one or more sensors designed to provide a capacitance measurement using electrodes in the sensors and one or more fluid properties sensors that determine at least one fluid property of an absorbed fluid. The electrodes are designed using mirror image axes of deformation to minimize the effect of deformation caused by the wearer of the sensor while still allowing some degree of flexibility for comfort. The person wearing one or more of the sensors may be monitored and cared for remotely using a communication system between the local device and a remote device used by a caregiver or medical practitioner.

An ostomy system configured to detect moisture content in a base plate or a sensor assembly part of the ostomy system, the ostomy system comprising the base plate and/or a sensor assembly part and a monitor device. The base plate or the sensor assembly part includes a first adhesive layer, a plurality of electrodes, and one or more sensing zones each covering one of one or more regions of the first adhesive layer, each of the one or more sensing zones including at least two of the plurality of electrodes. The monitor device is electrically coupled to the plurality of electrodes of the base plate or the sensor assembly part and configured to measure one or more resistances in the one or more sensing zones between the plurality of electrodes, each of the one or more resistances measured by two of the plurality of electrodes at one of the one or more sensing zones, and determine moisture content of the first adhesive layer at each of the one or more sensing zones based on the measured one or more resistances.

Systems, apparatuses, and methods for providing negative pressure with instillation fluids to a tissue site are disclosed. Some embodiments are illustrative of an apparatus or system for delivering negative-pressure and/or therapeutic solution of fluids to a tissue site, which can be used in conjunction with sensing properties of fluids extracted from a tissue site and/or instilled at a tissue site. For example, a system may comprise a tissue interface adapted to be coupled to a source of instillation fluid and a dressing interface having a therapy cavity that includes a pH sensor, a humidity sensor, a temperature sensor, and a pressure sensor embodied on a single pad within the dressing interface to provide data indicative of acidity, humidity, temperature and pressure at the tissue site. Such apparatus may further comprise algorithms for processing such data for detecting leakage and blockage conditions as well as providing information relating to the progression of healing of wounds at the tissue site. An illustrative method may comprise disposing the tissue interface at the tissue site and the therapeutic cavity in fluid communication with the tissue interface. The method may further comprise instilling fluid to the therapy cavity and then sensing the pressure, humidity, temperature, and the pH of the fluids adjacent the tissue interface. The method may further comprise determining various flow characteristics of the system by using a processing element electrically coupled to the sensors for transmitting property signals from the sensors to a controller configured to assess the property signals in order to identify the flow characteristics.

A wound dressing system configured to determine an exudate uptake pattern of a wound dressing is disclosed. The wound dressing system comprises a wound dressing and a monitor device. The wound dressing comprises an absorbent core layer, a proximal electrode assembly comprising a first plurality of electrodes, and a distal electrode assembly comprising a second plurality of electrodes. The monitor device of the wound dressing system is configured to detect a short-circuiting event across a primary and a secondary electrode of the first/second plurality of electrodes. Further, the monitor device is configured to indicate an exudate uptake pattern of the wound dressing based on the short-circuiting events. Thereby, an optimum or improved use of the wound dressing is enabled and facilitated. Further disclosed is a sensor pack for a wound dressing system and a method for determining an exudate uptake pattern of a wound dressing.

A dressing for a wound includes a drape, an absorbent core, and a wicking member. The drape can be configured to sealingly couple with a patient's skin surrounding the wound. The drape may enclose an inner volume of the dressing. The absorbent core layer may be positioned within the inner volume of the dressing. The wicking member is positioned within the inner volume, wherein the wicking member extends from an underside of the absorbent core layer to the drape. The indicator may be configured to fluidly couple with the wicking member through the drape and receive fluid from the wicking member. The indicator may be configured to provide a visual wound status indication in response to receiving fluid from the wound through the wicking member.

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.

An electronic system comprising an appliance interface and an electronic device couplable to the appliance interface is disclosed. The appliance interface comprises at least one primary appliance terminal, a reference appliance terminal, and a dielectric region separating the at least one primary appliance terminal and the reference appliance terminal. The electronic device comprises at least one primary device terminal configured to connect to the at least one primary appliance terminal, and a reference device terminal configured to connect to the reference appliance terminal. The electronic device is configured to generate and apply an electrical reference signal to the reference appliance terminal and to detect an electrical primary signal from the at least one primary appliance terminal. Further, the electronic device is configured to compare the primary signal with the reference signal, and, in accordance with at least a component of the primary signal being identical to the reference signal, determine that liquid is present in the appliance interface. Thereby, the electronic system can detect a presence of liquid in the appliance interface: only through the presence of (electrically conducting) liquid in the appliance interface can the primary signal, or a component thereof, be identical to the reference signal. The present disclosure further provides a method for detecting presence of liquid in an appliance interface, an appliance interface, and a medical device comprising the electronic system.

A wound treatment system for includes a wound dressing with a moisture vapor permeable backing layer and a moisture management system. The moisture management system includes a film layer, and a spacer assembly configured to be supported atop the upper surface of the wound dressing. Upon assembly, a flow path is defined between an upper surface of the wound dressing and a lower surface of the film layer. An air displacement device is configured to generate a forced airflow through the flow path. As air flows through the flow path, the dry air accelerates the diffusion and evaporation of fluid from the wound dressing, increasing the fluid capacity of the wound dressing.