Apparatuses for multi-orientation fluid management are described. In some example embodiments, an apparatus for managing fluids and manifolding material. The fluid acquisition and manifolding material can provide a shell or envelope for capturing the fluid and distributing it to the absorbent core for storage. The manifolding material can distribute fluid as the absorbent core swells. The apparatus may additionally include an exudate container providing a casing for the absorbent core and the fluid acquisition and manifolding layers.

An evacuated bottle system including a bottle defining a hollow interior, the bottle having a neck defining an opening that provides fluid communication with the interior; a cap assembly including a funnel having a first portion and a second portion, where the second portion extends radially outward from the first portion to form a floor on an interior thereof and a shoulder on an exterior thereof, the first portion defining a first bore and the second portion defining a second bore fluidly connected to the first bore; a self serum stopper having a self sealing membrane that extends radially outward to overlie at least a portion of the floor of the funnel; and a cap having a cap wall sized to fit over the funnel and a cover portion extending radially inward from the cap wall.

A portable system for subatmospheric pressure therapy in connection with healing a surgical wound includes a wound dressing dimensioned for positioning relative to a wound bed of a subject and a collection canister in fluid communication with the wound dressing. The canister includes a first vacuum chamber for drawing a vacuum and a second fluid chamber for collecting fluids removed from the wound dressing under the vacuum. The vacuum chamber may have a vacuum and a power source. The canister further includes a hydrophobic membrane separating the first and the second fluid vacuum chambers. The hydrophobic membrane is dimensioned to span a major portion of the cross-sectional area of the canister. The hydrophobic membrane may be dimensioned to substantially span an internal dimension of the collection canister. The hydrophobic membrane may include one or more outwardly extending lobes. The outwardly extending lobes may be arranged in staggered relation. The hydrophobic membrane may be releasably mountable to the canister, and, may be supported within a divider separating the first vacuum chamber and the second fluid chamber.

Disclosed herein are several embodiments of a negative pressure appliance and methods of using the same in the treatment of wounds. Some embodiments are directed towards wound dressings comprising a liquid and gas permeable transmission layer, an absorbent layer for absorbing wound exudate, the absorbent layer overlying the transmission layer, a gas impermeable cover layer overlying the absorbent layer and comprising a first orifice, wherein the cover layer is moisture vapor permeable. Some embodiments are directed to improved fluidic connectors or suction adapters for connecting to a wound site, for example using softer, kink-free conformable suction adapters.

A portable negative pressure wound therapy system includes a dressing assembly for positioning over a wound to apply a negative pressure to the wound and a canister assembly. The canister assembly includes a control unit having a vacuum source and a controller and a collection canister in communication with the dressing assembly operable to receive fluid from the wound. The collection canister has a filter assembly having a filter and a passageway between the filter and a wall of the collection canister. The collection canister also includes a canister interface having a suction port, an inlet port, and a channel. The vacuum source draws air through the suction port from the channel which draws air from the passageway connected to the channel, the air in the passageway is drawn from the collection canister through the filter, and the air in the collection canister is drawn through the inlet port.

An evacuated bottle system including a bottle defining a hollow interior, the bottle having a neck with a rim defining an opening; a cap assembly supported on the bottle, the cap assembly including a funnel having a first portion and a second portion, the first portion being insertable within the interior of the bottle and the second portion engaging a portion of the bottle to support the funnel above the rim, the funnel defining a bore that fluidly communicates with the hollow interior of the bottle; a self-sealing membrane that covers the bore formed by the funnel to selectively seal the hollow interior of the bottle; a cap attachable to the bottle, the cap including a cover portion that extends at least partially over the self-sealing membrane to restrain movement thereof, the cover portion being axially spaced from the self-sealing membrane to define a gap that permits axial movement of the self-sealing membrane to selectively open the bottle to fluid communication outside of the bottle.

An irrigation and aspiration device includes a drive assembly, an evacuation chamber, and a delivery apparatus. The delivery apparatus includes an evacuation tube configured to hold an irrigation solution and a vacuum tube that is in fluid communication with the evacuation chamber. The drive assembly is configured to store a restoration energy within the evacuation chamber and force the irrigation solution out of the evacuation tube in response to an applied force. The device is configured to use the restoration energy to draw an aspiration fluid into the vacuum tube.

Disclosed herein are several embodiments of a negative pressure appliance and methods of using the same in the treatment of wounds. Some embodiments are directed towards wound dressings comprising a liquid and gas permeable transmission layer, an absorbent layer for absorbing wound exudate, the absorbent layer overlying the transmission layer, a gas impermeable cover layer overlying the absorbent layer and comprising a first orifice, wherein the cover layer is moisture vapor permeable. Some embodiments are directed to improved fluidic connectors or suction adapters for connecting to a wound site, for example using softer, kink-free conformable suction adapters.

The invention relates to a chest drainage system (100) for creating and maintaining a sub-atmospheric pressure within the pleural cavity and/or the mediastinum of a patient (P). The system has a chest drainage unit (CDU, 10) with an internal cavity (C) having a first chamber part (C1, 11) and a second chamber part (C2, 12) with an air outlet from the CDU, and a liquid seal chamber (LSC, 13). The second chamber part (C2, 12) of the chest drainage unit is connected to a carbon dioxide sensor (CO2S, 15) for detecting carbon dioxide in any air passing through the liquid seal chamber (LSC, 13), the carbon dioxide sensor being capable of detecting carbon dioxide by a visible color change from a chemical reaction occurring in the carbon dioxide sensor between carbon dioxide and a detector reactant (DC) positioned in the carbon dioxide sensor. Preliminary test performed by the inventor have demonstrated that the present invention is very effective in determine whether, or not, carbon dioxide is present in the air passing through the chest drainage unit, this information being highly important in the subsequent decision of continuing the treatment with the chest drainage system.