A negative pressure wound therapy system includes at least one sensor coupled to a wound dressing for a wound of a patient, and a processing circuit. The at least one sensor is configured to output a measurement of the pressure in the wound dressing. The processing circuit is configured to open a sealable aperture, receive the pressure measurements in the wound dressing, calculate a rate of pressure decay, correlate the rate of pressure decay in the wound dressing to a wound dressing fluid absorbent capacity and other therapy parameters, and output the wound dressing fluid absorbent capacity and other therapy parameters to a remote electronic device.

The present invention provides a manually operated negative pressure wound treatment (NPWT) apparatus for suction of bodily fluids using the negative pressure generated by means of manual pressing. The NPWT apparatus is made of two parts: [1] top functional part; and [2] bottom collector part. The top functional part is made of a pressing mechanism attached to a bellow enclosed within an enclosure. The bellow is connected to the wound dressing using an external medical tube through a one-way check valve, wherein the negative pressure gets created within the bellows when compressed by manually pressing the mechanism. The negative pressure of the bellows sucks the bodily fluid from the wound, which promotes a new blood supply, cleaning infection, and accelerates healing dramatically. The bottom collector part is attached with the bellow through the internal one-way valve, wherein the collector collects the fluid from the bellow when the piston is pressed in the next cycle. Pressure levels and wound conditions are measured and transmitted to the user's smart device, in order to enhance treatment monitoring and efficacy.

In one example embodiment, an apparatus for providing negative-pressure therapy may comprise a negative-pressure source, a pressure sensor, and a control valve. The negative-pressure source may be configured to be fluidly coupled to a distribution component. The control valve may be fluidly coupled to the pressure sensor and configured to be selectively coupled to the negative-pressure source, the distribution component, or both. A controller may also be configured to operate the control valve to selectively couple the pressure sensor to at least one of the negative-pressure source and the distribution component through the control valve, and the pressure sensor may provide a feedback signal to the controller indicative of pressure in a feedback path associated with the position of the control valve. The controller may also be configured to operate the negative-pressure source based on the feedback signal.

A negative pressure wound therapy apparatus can include a source of negative pressure configured to aspirate fluid from a wound covered by a wound dressing, a first pressure sensor configured to measure pressure downstream of the source of negative pressure, and a controller configured to, in response to a determination that pressure measured by the first pressure sensor satisfies a threshold indicative of a first blockage downstream of the source of negative pressure, provide an indication of the first blockage. The system can further include a second pressure sensor configured to measure pressure upstream of the source of negative pressure and the controller can be further configured to, in response to a determination that pressure measured by the second pressure sensor satisfies a threshold indicative of a second blockage upstream of the source of negative pressure, provide an indication of the second blockage.

Disclosed herein are embodiments of a wound treatment apparatus with electronic components integrated within a wound dressing. In some embodiments, a wound dressing apparatus can comprise a wound dressing. The wound dressing can comprise an absorbent material, an electronics unit comprising a negative pressure source, the electronics unit integrated within the wound dressing and at least partially encapsulated by a preshaped film material or film. The preshaped film material can be incorporated into the wound dressing and can comprise an aperture configured to permit fluid communication between the absorbent material and the negative pressure source.

Systems, apparatuses, and methods for providing negative pressure and/or 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, an apparatus may comprise a dressing interface or connector that includes a pH sensor, a humidity sensor, a temperature sensor and/or a pressure sensor embodied on a single pad within the connector and proximate the tissue site to provide data indicative of acidity, humidity, temperature and pressure. Such apparatus may further comprise an ambient port for providing the pressure sensor and the humidity sensor with access to the ambient environment providing readings relative to the atmospheric pressure and humidity.

A composite wound dressing apparatus promotes healing of a wound via the use of a micropump system housed within or above a wound dressing member. The micropump system includes a miniature pump that applies a subatmospheric pressure to the wound to effectively draw wound fluid or exudate away from the wound bed without the need for a cumbersome external vacuum source. Hence, the wound dressing and micropump system is portable which allows the patient mobility that is unavailable when an external vacuum source is used. The patient does not need to be constrained for any period of time while exudate is being removed from the wound.

A system and method for providing fluid to a tissue site is described. The method fluidly couples an instillation therapy system to the tissue site and monitors a pressure supplied to the tissue site by a reduced-pressure source with the instillation therapy system for a time period. The method provides fluid to the tissue site with the instillation therapy system in response to the pressure at the tissue site during the time period. The system includes a pressure sensor fluidly coupled to the tissue site to measure a pressure proximate the tissue site. A valve and a flow meter are fluidly between a fluid reservoir and the tissue site. A controller is communicatively coupled to the pressure sensor and the valve and configured to monitor the pressure at the tissue site and a volume of fluid flow to the tissue and, in response, operate the valve.

A negative pressure treatment arrangement comprising a multi-layered drainage film, wherein a drainage space is formed between two layers of the drainage film, a first film layer on the wound side delimiting the drainage space comprising a first opening arrangement facilitating the admission of fluids or gases to the drainage space and a second film layer facing away from the wound that also delimits the drainage space comprising a second opening arrangement designed to discharge fluids and/or gases from the drainage space, and also comprising a fluid-tight fixing film that can be used to fix the drainage film to the skin surrounding a wound and to cover at least one area of the second opening arrangement.

Methods and systems are provided for a sub-atmospheric wound-care (SAWS) system for treating an open wound. The SAWS system includes a regulated vacuum source for developing a negative pressure, a flow rate meter configured to measure a flow rate of liquid removed from the wound, a primary pressure regulating sensor located proximate the wound for directly measuring the negative pressure at the wound, a backup pressure regulating sensor located vacuum tube, a porous dressing suitable to be sealed airtight which is positioned within a wound interface chamber, a collection canister configured to collect said liquid removed from the wound, and an adapter configured to use wall suction a primary regulated vacuum source.