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.

Abstract: A dressing configured to be positioned adjacent to a tissue site can include a cover, a tissue interface, a dressing interface, and a sensing conduit. The dressing interface can be configured to be coupled to the cover and can include a housing, a fluid pathway, and a sensing pathway. The fluid pathway can extend internally through the housing between a fluid inlet cavity and a fluid outlet port. The sensing pathway can extend internally through the housing between a sensing inlet port and a sensing outlet port with the sensing pathway being fluidly isolated from the fluid pathway. The sensing conduit can be configured to be coupled between the sensing inlet port and a tissue contact surface of the tissue interface. Also disclosed are systems, apparatuses, and methods suitable for use with various example dressings.

Abstract: Apparatuses, systems, and methods in a negative pressure wound therapy environment. A therapy device can include a pump housing and a power module configured to couple to the pump housing. The pump housing comprises a pump configured to deliver negative pressure to a dressing, a first pressure sensor configured to sense a pressure at the pump, a controller operably coupled to the pump and the first pressure sensor within an interior of the pump housing, and a first communications connector configured to provide communication with the controller from an exterior of the pump housing. The power module comprises a battery configured to provide power, a second pressure sensor configured to sense an ambient pressure, and a second communications connector configured to be coupled to the first communications connector to operably connect the battery and the second pressure sensor to the controller.

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: A modular therapy device for medical treatment includes a carrier, an electronic component fixedly coupled to the carrier, and a clinical body. The clinical body includes a fluid driver and a canister fluidly coupled to the clinical body. The canister defines an internal cavity configured to receive a volume of fluid therein. The clinical body is detachably coupled to the carrier. In some embodiments, the electronic component is one of a plurality of electronic components including a control board and a motor electrically coupled to the control board. The clinical body may include a flow manifold and the fluid driver may be disposed within the flow manifold. The fluid driver may be detachably coupled to the motor.

Abstract: A system for treating a tissue site with negative-pressure therapy includes a dressing configured to be placed adjacent to the tissue site. The dressing includes a first film layer, a manifold, and a second film layer. A plurality of fenestrations is disposed through a first side and a second side of the first film layer and is configured to be exposed to the tissue site. The first side of the manifold is disposed adjacent to the second side of the first film layer, and a first side of the second film layer is disposed adjacent to the second side of the manifold. A negative-pressure passage is disposed through the second film layer, and a fluid-ingress passage is disposed through the second film layer, the manifold, and the first film layer. A negative-pressure source is fluidly coupled to the negative-pressure passage, and a fluid source coupled to the fluid-ingress passage.

Abstract: An apparatus for coupling a negative-pressure source to a tissue site includes a base having a first side and a second side, a post member extending outward from the first side of the base, a port coupled to the post member, and a top flange coupled to the post member opposite to the base. The post member may include a winding surface configured to carry a conduit. The port may be configured to fluidly couple the conduit to the tissue site through an aperture in the second side of the base. The top flange may include a deformable lip configured to move between an open position and a closed position. The deformable lip may be positioned closer to the first side of the base in the closed position than in the open position.

Abstract: Apparatuses, systems, and methods for providing negative-pressure wound therapy are described. The system for treating a tissue site with negative-pressure includes a dressing and a dressing interface. The dressing includes a cover and a tissue interface. The cover includes a stand-off layer, a microsphere layer, a film layer, a bonding adhesive layer, and a sealing adhesive layer. The tissue interface includes a first surface with a film and a second surface positioned proximate to the tissue site. The dressing interface is configured to couple to the dressing. The dressing interface includes a first chamber, a first piercing element disposed in the first chamber, a second chamber, and a second piercing element disposed in the second chamber. The dressing interface is configured to draw fluid from the first chamber at a first predetermined pressure and to draw fluid from the second chamber at a second predetermined pressure.