A negative pressure device for applying to skin is configured to define a sealed enclosed three-dimensional space when at least a portion of the device is sealed against the skin. The device includes a body including at least one expandable segment that is configured to expand after the device has been sealed against the skin.

A chemical pump assembly useful for negative pressure therapy includes a chemical pump housing having an inner chamber, a reactor located within the inner chamber, an opening provided in the chemical pump housing, a first pull tab which extends from the inner chamber to ambient through the opening, and a removable layer connected to the first pull tab. The reactor is configured to react with a selected gas found in air so as to consume the selected gas when exposed to air in the inner chamber. The removable layer shields the reactor from air in the inner chamber atmosphere until the removable layer is removed.

A medical device for use with an associated tube inserted into an incision formed in skin or tissue of a patient includes a dressing including an opening sized to receive and allow movement of the associated tube. A valve is operatively connected with the opening of the dressing and includes a main body; and an opening formed in a portion of the main body. The opening is sized and dimensioned to accommodate the surgical tube.

The present disclosure provides a medical negative pressure lamination component including an airtight patch, a dressing patch, a battery module, a slim-type pump and a sensing and controlling module. The airtight patch includes a communication portion and a dressing area in fluid communication with each other. The dressing patch is accommodated in the dressing area. The slim-type pump is electrically connected to the battery module. The sensing and controlling module is electrically connected to the battery module and the slim-type pump, and detects and controls a gas pressure and a gas flow provided by the slim-type pump. The dressing patch is attached on the skin surface, and is covered and accommodated by the airtight patch. When the slim-type pump is actuated, the air between the airtight patch and the skin surface is drawn out by the slim-type pump through the communication portion, and a negative pressure is formed therebetween.

A wound therapy device includes a wound dressing and a humidifier configured to deliver humid air to a wound site to which the wound dressing is applied. The humidifier may be a remote structure that is fluidly connected to the wound dressing applied about a patient's skin at a wound site. Alternatively, the humidified may be integrated with the wound dressing to define an integral, portable therapy device that may be worn by the patient. The wound therapy device may be a standalone wound treatment device, or may be used in conjunction with other wound treatment devices, such as, e.g., negative pressure wound therapy devices.

Disclosed embodiments relate to devices and systems for providing both negative-pressure therapy and instillation, In some embodiments, both negative-pressure and instillation may be provided to a tissue site in a low-profile context that may also prevent siphoning of instillation fluid during negative pressure application. For example, a single bridge may include a negative-pressure pathway with supports and an instillation pathway, and the instillation pathway may be configured with respect to the negative-pressure pathway so that at least a portion of the instillation pathway collapses upon application of negative pressure to the negative-pressure pathway. Collapse of at least a portion of the instillation pathway may be sufficient to close the instillation pathway.

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.

In some examples, a dressing suitable for treating a tissue site may include a sealing member configured to form a sealed enclosure relative to the tissue site. A fluid buffer may be configured to be positioned at a sealing member aperture in fluid communication between the sealed enclosure and an ambient environment external to the sealed enclosure. Other dressings, apparatus, systems, and methods are disclosed.

Drainage tube for use in wound drainage, in particular in deep drainage, having a drainage lumen surrounded by a tube jacket and extending parallel to the tube axis, the tube jacket having at least one perforation which, starting at an outer boundary area of tube jacket, extends in a transverse direction, in particular approximately perpendicular to the tube axis, and opens out into the drainage lumen.

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.