Abstract: A dressing device for a negative pressure wound therapy includes a base film configured to couple to a wound site. The dressing device further includes a manifold coupled to the base film. The manifold includes a first portion configured to interface with the wound site and a second portion spaced apart from the wound site. The dressing device further includes an absorbent spaced apart from the first portion of the manifold. The absorbent is coupled to and extends along the second portion of the manifold, such that the absorbent is offset from the wound site. The dressing device further includes a top film disposed adjacent to the absorbent opposite to the manifold, such that the absorbent is disposed between the manifold and the top film.

Abstract: A conduit device for use with a negative pressure wound therapy system includes a tubular structure configured to fluidly connect to each of a therapy device and a wound dressing located at a wound site. The tubular structure includes a first film, a second film, and a third film at least partially disposed between and connected to each of the first film and the second film. The tubular structure includes a plurality of filters spaced apart from each other, connected to the third film, to provide pneumatic communication between a first chamber and a second chamber of the tubular structure. Each of the plurality of filters is offset from the wound port. The tubular structure includes an absorbent disposed in at least one of the first chamber and the second chamber and offset from the wound port.

Abstract: A system for negative pressure wound therapy includes a controller configured to operate a pump in a plurality of cycles based at least on a negative wound pressure generated by the pump at a wound site. The controller is further configured to define an upper negative target pressure, a lower negative target pressure, a fall line, and a rise line. The controller is further configured to switch off the pump when the negative wound pressure reaches the upper negative target pressure of the cycle. The controller is further configured to switch on the pump when the negative wound pressure decreases from the upper negative target pressure to the rise line of the cycle due to a leakage from the wound site after switching off the pump. The controller is further configured to operate the pump such that the negative wound pressure increases along the rise line of the cycle.

Abstract: A combined instillation fluid delivery pump head and wound fluid collection canister apparatus for use with a negative pressure wound therapy (NPWT) unit includes a body defining a wound fluid collection canister configured to collect wound exudate and defining a pump head formed by a partially cylindrical recess in a wall of the body. The apparatus includes a flexible fluid instillation conduit extending along the pump head to be compressed by a pump rotor from the NPWT unit. The apparatus includes a first conduit fluidly coupled on one end of the first conduit to a negative pressure source on the NPWT unit. The apparatus includes a second conduit having one end of the second conduit communicating with the wound fluid collection canister. The apparatus includes a third conduit fluidly coupled to one end of the flexible fluid instillation conduit.

Abstract: A device for interfacing a negative pressure source with a dressing disposed on a wound site includes a housing. The housing includes a cavity including an opening configured to fluidly communicate with the dressing. The housing further includes a housing port extending through the housing and fluidly communicating with the cavity. The housing port is configured to fluidly couple the cavity with the negative pressure source. The device further includes a filter at least partially covering the cavity of the housing and facing the opening of the housing. The filter is air permeable. The device further includes a chamber defined between the housing and the filter opposite to the opening. An air flow between the chamber and the opening occurs through the filter. The device further includes a sensor received within the chamber and configured to sense at least one parameter associated with the wound site.

Abstract: A canister for use with a wound therapy system includes first and second compartments configured to receive and contain wound exudate, and an airflow pathway. The airflow pathway includes a planar region positioned between the first compartment and the second compartment, an inlet extending from a first end of the planar region at an obtuse angle relative to the planar region, an outlet at a second end of the planar region.

Abstract: A negative pressure wound therapy (NPWT) system for treatment of a wound site includes a therapy unit including a housing, a negative pressure source disposed within the housing, and a first printed circuit board disposed within the housing. The NPWT system includes a battery pack including a second printed circuit board. The NPWT system further includes a power connector assembly, a wound dressing coupled to the wound site and disposed in fluid communication with the therapy unit, and an ambient pressure sensor. The ambient pressure sensor is configured to generate a signal indicative of an ambient pressure. The first printed circuit board is communicably coupled to the ambient pressure sensor for receiving the signal from the ambient pressure sensor.

Abstract: A wound therapy system includes a single conduit fluidly connecting a wound site to a. removed fluid canister. A negative pressure circuit is defined by the wound site, the conduit, the removed fluid canister and tubing extending between the removed fluid canister and a pneumatic pump that applies negative pressure to the negative pressure circuit. A method of operating the wound therapy system includes profiling and benchmarking pressure decay within the negative pressure circuit against previous and/or expected pressure decay to identify any new or sudden anomalies that occur during the operation of the wound therapy system. The wound therapy system may additionally alert a user to such anomalous operation of the wound therapy system and/or identify and alert a user to an underlying cause (e.g, blockage and/or leak, etc.) that is responsible for the anomalous readings.

Abstract: Systems and methods for treating a plurality of tissue sites include a multi-port therapy unit. The multi-port therapy unit includes a plurality of patient-side ports each fluidly coupled to a plurality of conduits and a fluid reservoir fluidly coupled to the plurality of ports. A plurality of pressure sensors are associated with the plurality of patient-side ports to determining a pressure associated with each conduit. A controller is operatively coupled to the plurality of pressure sensors to receive treatment pressure data, monitor pressure for each pressure sensor of the plurality of pressure sensors, and signal an alarm condition if the pressure is outside of a pre-selected range. The system includes a reduced-pressure source fluidly coupled to a dressing at each tissue site through the multi-port therapy unit.

Abstract: A liquid-collection canister for collecting liquid from a tissue site to which reduced pressure treatment is applied. The canister may include a canister body, a canister lid, a filter carrier, and a filter. The canister lid may define a liquid collection chamber with the canister body. The liquid collection chamber may include one or more internal walls configured to collect and be exposed to the liquid from the tissue site. The filter carrier may be suspended within the liquid collection chamber and separated from the internal walls. The filter may be coupled to the filter carrier and configured to allow gaseous communication with the liquid collection chamber and to prevent liquid from leaving the liquid collection chamber.

Abstract: A negative pressure wound therapy (NPWT) device includes a pneumatic pump, a single microphone, and a controller. The pneumatic pump is operable to draw a negative pressure at a wound dressing. The single microphone is configured to measure a sound level of an environment surrounding the NPWT device. The controller is configured to operate the pneumatic pump to draw the negative pressure at the wound dressing. The controller is further configured to obtain the sound level of the environment surrounding the NPWT device, and adjust operation of the pneumatic pump based on the sound level of the environment.

Abstract: A system for creating a tissue interface. The system includes a scanner, at least one processor, and a memory. The scanner is configured to scan a tissue site and generate a signal corresponding to a topography of the tissue site. The at least one processor is configured to receive the signal corresponding to the topography of the tissue site and to receive user input at a user interface identifying a therapy to be applied at the tissue site. The memory is coupled to the at least one processor and is configured to store instructions that when executed by the at least one processor in response to receiving the signal corresponding to the topography of the tissue site cause the system to transform the signal corresponding to the topography of the tissue site into a model site surface and generate a model tissue interface.

Abstract: A dressing includes an evaporative film layer having a wound-facing side and a non-wound¬ facing side. The evaporative film layer has a high moisture vapor transfer rate. The dressing includes a carrier film layer coupled to the non-wound-facing side of the evaporative film layer. A plurality of holes extends through the carrier film layer. The dressing includes a superab sorbent layer coupled to the wound-facing side of the evaporative film layer and a wicking layer coupled to the superab sorbent layer. The superab sorbent layer is positioned between the wicking layer and the evaporative film layer. The wicking layer is configured to wick fluid from a wound, the superab sorbent layer is configured to absorb fluid from the wicking layer, and the evaporative film layer and the carrier film layer allow evaporation of fluid from the superabsorbent layer through the holes. The carrier film layer provides structural support to the evaporative film layer.

Abstract: A wound debridement system includes a wound dressing having an active layer and a wound interface layer. The active layer is formed from one or more drive elements arranged about a film layer, by which the drive elements are attached to the wound interface layer. Activation of the drive elements is configured to cause the movement of the wound interface layer relative to a tissue site to which the wound dressing is applied. The drive elements may include one or more drive members formed of a material having a shape memory effect configured to transition the drive members between expanded and collapsed configurations and/or one or more motors configured to translate or oscillate the active layer. The wound interface layer may be formed having an abrasive wound-facing surface, such that the movement of the wound interface layer causes a mechanical disruption and debridement of debris at the tissue site.

Abstract: A canister for use in a negative pressure wound therapy system. The canister includes a first fluid chamber, a second fluid chamber, and a filter disposed between the first fluid chamber and the second fluid chamber. The first fluid chamber is configured to receive fluids from a tissue site. The filter is configured to filter the fluids from the tissue site as the fluids move from the first fluid chamber to the second fluid chamber.

Abstract: Apparatuses, systems, and methods for treating a tissue site. A system for treating a tissue site with negative pressure includes a dressing and a dressing interface. The dressing includes a cover configured to be disposed over the tissue site, a tissue interface configured to be positioned adjacent to the cover, and a wound contact layer configured to be positioned adjacent to the tissue interface. The dressing interface is configured to be coupled to the cover to fluidly couple the tissue interface and the wound contact layer to a therapy unit. The dressing interface is also configured to transmit electromagnetic radiation through the cover.

Abstract: One implementation of the present disclosure is a method for dynamically controlling an alarm of a negative pressure wound therapy (NPWT) device, according to some embodiments. In some embodiments, the method includes initiating NPWT, comparing an initial pump duty to a threshold value to determine a dressing application quality, monitoring a leakage rate of the NPWT, setting a leak threshold value based on the dressing application quality, determining leakage event occurrences in response to the leakage rate exceeding the leak threshold value at multiple times, adjusting the leak threshold value based on at least one of a number of the leakage events over the time period, a time duration between sequentially occurring leakage events of the leakage events, and the dressing application quality, and causing a user interface device to display a leak alert in response to the leakage rate exceeding the adjusted leak threshold value.

Abstract: An apparatus for managing fluid from a tissue site may include a first layer and a second layer. The first layer may comprise a first end, a second end, a first surface, a thickness between the first surface and the second surface, a first fluid pathway disposed in the first surface, and a second fluid pathway disposed in the first surface. The first fluid pathway and the second fluid pathway can extend from the first end to the second end. The second layer may have a first end, a second end, a first surface, and a second surface. The second surface of the second layer can be coupled to the first surface of the first layer.

Abstract: Systems and methods for negative pressure wound therapy. The system includes a dressing, a therapy device, and a pressure sensing device. The dressing is configured to be positioned at the tissue site. The therapy device is configured to fluidly couple to the dressing. The therapy device includes a pump configured to deliver negative pressure to the dressing, a first wireless communication device, and a controller configured to control the pump. The pressure sensing device is configured to be fluidly coupled to the dressing at a sensing location external to the therapy device and to wirelessly communicate a pressure signal from the sensing location to the first wireless communication device.

Abstract: The disclosed dispenser provides for controlled dispensing of a liquid. The dispenser has a housing that supports a fluid holding system, fluid delivery system, priming mechanism, and an actuation control mechanism. The priming mechanism creates and stores an actuation force, which breaks the sealed fluid delivery system and the force can be controllably released with an actuation control mechanism to dispense the liquid. The actuation control mechanism includes a plunger that slidably advances into fluid-containing cylinders from force by the priming mechanism. The actuation control mechanism further includes an actuation button that interlocks with the plunger to start and stop dispensing. Optionally, the dispenser has two cylinders and a mixing chamber for dispensing a multi-component liquid, such as an adhesive.