Abstract: A reduced pressure treatment appliance is provided for treating a wound on the body of a patient. In some embodiments, the appliance comprises a cover, which is further comprised of a top cup member and an interface member. The interface member comprises flow control means, which permit exudate from the wound to flow through the flow control means into the volume under the cover, but not in the opposite direction. Also, in some embodiments, the top cup member is further comprised of a lid member, a cup body member, and lid attachment means to removably attach the lid member to the cup body member. In some of these embodiments, it is possible to access the wound for monitoring, treatment and other purposes without removing the cover from the body. In other embodiments, the wound treatment appliance also includes a vacuum system to supply reduced pressure to the site of the wound in the volume under the cover.

Abstract: The invention relates to the treatment of wounds. In particular, the invention relates to systems, devices, and methods enabling pulse lavage irrigation of wounds in a non-controlled setting while providing containment of contaminated irrigation fluid, thereby preventing exposure of individuals and surfaces in proximity to the patient to infectious materials.

Abstract: A method and system, together with corresponding apparatus and components, and corresponding kits, for use in performing topical wound therapy by using topical negative pressure (TNP) in combination with one or more hollow fiber catheters. In one embodiment, the method provides hollow fiber catheters for the removal of fluid or fluid components from the wound area by ultrafiltration. In another embodiment the hollow fiber catheters are connected to an infusion pump and used to deliver therapeutic fluids to the wound area. In yet another embodiment, a first set of hollow fiber catheters is connected to a vacuum pump and a second set is connected to an infusion pump to simultaneously remove excess tissue fluid and deliver therapeutic fluid to the wound site.

Abstract: A wound dressing apparatus includes a wound dressing member dimensioned for positioning relative to a wound bed. The wound dressing member including an internal vacuum reservoir and has a port in communication with the vacuum reservoir for applying subatmospheric pressure to the vacuum reservoir to facilitate removal of fluid from the wound bed. The wound dressing member includes a visual pressure indicator associated therewith for indicating a level of pressure within the vacuum reservoir. The visual pressure indicator includes color indicia having a plurality of colors corresponding to a condition of the pressure within the vacuum reservoir. The wound dressing member includes a lower absorbent member positionable adjacent the wound bed and an upper member which at least partially defines the vacuum reservoir. At least one of the top member and the lower absorbent member has the visual pressure indicator mounted thereto. The preferred visual pressure indicator includes an electronic position sensor.

Abstract: Assemblies, systems, and methods convey fluid from an internal wound site or body cavity by applying negative pressure from a source outside the internal wound site or body cavity through a wound drain assembly that is placed directly inside the internal wound site or body cavity.

Abstract: A flexible protective cover for preventing fluid from entering an open epidermal site on a user, comprising: a central portion having at least one rib, an edge connected to the central portion at an angle, a lip disposed around the edge, a sealing member disposed over the lip for providing a sealing engagement between the lip and the open epidermal site, and at least one adjustable strap removably connected to the central portion. Also disclosed is a flexible protective cover having a central portion, an edge connected to the central portion at an angle, an inflatable sealing member integral with the edge for providing the sealing engagement, and at least one adjustable strap removably connected to the central portion.

Abstract: A reduced pressure treatment system includes a first fluid pathway in communication with a reduced pressure source and a second fluid pathway. The system includes a reduced pressure manifold having a substantially gas impermeable barrier and at least one outer conduit defining a lateral edge of an interior region. The outer conduit and the substantially gas impermeable barrier enclose a portion of the interior region. The outer conduit is in fluid communication with one of the first and second fluid pathways. The outer conduit has at least one opening in fluid communication with the interior region. An inner conduit is at least partially disposed within the interior region and is in fluid communication with another of the first and second fluid pathways.

Abstract: A control unit is adapted for use with a vacuum wound bandage. The control unit has a canister to collect waste material from the vacuum wound bandage, a fluid source to irrigate the wound, and a door to at least partially cover the fluid source.

Abstract: 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.

Abstract: A reduced pressure treatment apparatus includes a drape for positioning over the wound site to create and maintain a substantially air-tight cavity between the wound site and the drape. A multi-lumen suction tube is provided to be attached to a reduced pressure source. The multi-lumen suction tube includes a center lumen and at least one outer lumen and is configured to deliver reduced pressure beneath the drape to the substantially air-tight cavity. The multi-lumen suction tube is adapted to allow fluid to be drawn from the wound site through the center lumen and pressure to be monitored at the wound site through the at least one outer lumen.

Abstract: A sensor for use in a canister for fluid collection, the canister having a canister top and defining a fluid collection chamber. The sensor includes a first electrode and a second electrode. The first electrode includes a first portion and a second portion, wherein the first portion of the first electrode is supported by the canister top, and the second portion of the first electrode is configured to extend into the fluid collection chamber. The second electrode includes a first portion and a second portion, wherein the first portion of the second electrode is supported by the canister top, and the second portion of the second electrode is configured to extend into the fluid collection chamber. The sensor also includes an electric circuit configured to detect an electrical property associated with the first and second electrodes.

Abstract: An apparatus is provided for collecting medical waste fluids. The apparatus includes: a medical waste collection container for collecting medical waste fluids; first and second electrically conductive sensing elements disposed inside the container so as to be exposed to fluid collected in the container, where the first and second sensing elements are located inside the container at a position corresponding to a full fluid level at which point the container is full of fluid; and an electronic circuit coupled to the sensing elements for generating a full alarm signal when the electronic circuit determines that current can flow between the first and second sensing elements as a result of fluid in the container reaching the full fluid level and thereby completing a current path between the first and second sensing elements.

Abstract: A manually-actuated, constant reduced-pressure apparatus for use with a reduced-pressure system for treating tissue at a tissue site includes a flexible, collapsible member that is operable to move between a compressed position and an extended position. The collapsible member may be disposed between a carrier member and a slider member that move between a compressed position and an extended position. The carrier member and slider member are urged away from each other by a constant-force biasing member, e.g., a constant force coil spring. As the apparatus moves from the compressed position to the extended position, a constant reduced-pressure is generated and delivered to a reduced-pressure port. Systems, methods of manufacturing a manually-actuated, constant reduced-pressure apparatus, and methods of treating a tissue site are also provided.

Abstract: The present invention provides a treatment apparatus. The apparatus contains a reservoir or generator for a treatment solution, a mechanism for delivering the treatment solution to a wound site, and a mechanism for applying the solution to a wound, tissue, bone or surgical cavity for treatment. The apparatus may apply the solution (e.g., a solution containing hypohalous acid) with, for example, an occlusive wound dressing, pulsative lavage device, hydrotherapy, hydrosurgical device, and/or ultrasound. A waste container may be operably connected to the apparatus for collecting waste from the wound by run-off, or by applying negative pressure (e.g. a vacuum). Because the apparatus of the invention can optionally be portable or mobile, the invention is suitable for use in hospitals and nursing homes, as well as for home wound care.

Abstract: Described are improvements to the structure and functionality of a reduced pressure adapter used to connect a distribution manifold and a reduced pressure source instrumentation in a reduced pressure wound treatment (RPWT) system. The reduced pressure adapter reduces instances of unintentional liquid ingress into ancillary lumens of a reduced pressure delivery tube, while channeling the liquid to a primary lumen of the reduced pressure delivery tube.

Abstract: A portable system for subatmospheric pressure therapy in connection with healing a surgical wound is provided. The system 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 base defining a fluid receiving cavity and having a fluid inlet port and a vacuum port. The fluid inlet port is configured for fluid communication with a wound dressing. The system further includes a cover selectively engageable to the base, e.g., in a snap-fit manner. The cover is configured to receive a control unit and has a vent assembly for exhausting the control unit. A seal member is interposed relative to the base and the cover to establish and maintain a substantial sealed relationship between the two components when assembled.

Abstract: A composite wound dressing and delivery apparatus includes a substantially transparent dressing layer having a lower surface that is coated with a pressure sensitive for applying the dressing layer over a wound to define a reservoir in which a negative pressure may be maintained. A substantially transparent backing layer adhered to the lower surface of the dressing layer in a releasable manner, and a vacuum port is centrally located on the dressing layer. The vacuum port is adapted to provide fluid communication between a vacuum source and the reservoir through the dressing layer. A targeting grid associated with either the dressing layer or the backing layer includes regularly spaced reference marks along at least two axes extending from the vacuum port.

Abstract: Disclosed is an apparatus for the treatment of a wound on a patient. The apparatus is capable of administering localized negative pressure therapy to the wound using a negative pressure source and a drain line for removing exudate from the wound. The apparatus is also capable of administering localized hyperbaric fluid therapy to the wound using a fluid source and a supply line for supplying fluid to the wound.

Abstract: An apparatus for cleansing wounds with means for applying flow stress to the wound bed; and in which irrigant fluid from a reservoir connected to a conformable wound dressing and wound exudate from the dressing are moved by a device (which may be a single pump or two pumps) for moving fluid through a flow path which passes through the dressing and a means for providing simultaneous aspiration and irrigation of the wound, and means for applying flow stress to the wound bed. The former removes materials deleterious to wound healing, while distributing materials that are beneficial in promoting wound healing over the wound bed. The latter promotes wound healing. The dressing and a method of treatment using the apparatus.

Abstract: A 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, a subatmospheric pressure mechanism having a vacuum source for presenting subatmospheric pressure at the wound bed and a collection canister. The collection canister includes a canister housing defining an internal chamber for collecting exudates from the wound bed removed under subatmospheric pressure, an inlet to receive the exudates for depositing in the internal chamber, an outlet in fluid communication with the vacuum source and a valve mounted adjacent the inlet. The valve is adapted to open in the presence of a vacuum condition within the internal chamber to permit the exudates to flow therethrough and to close in the absence of a vacuum condition within the internal chamber. The valve reduces the amount of exudates leakage, and eliminates the need for the use of clamping or the like to clamp about the system tubing.

Abstract: An apparatus for cleansing wounds in which irrigant fluid from a reservoir connected to a conformable wound dressing and wound exudate from the dressing are moved by a device (which may be a single pump or two pumps) for moving fluid through a flow path which passes through the dressing and a means for providing simultaneous aspiration and irrigation of the wound, and means for stressing the wound bed and optionally tissue surrounding the wound. The former removes materials deleterious to wound healing, while distributing materials that are beneficial in promoting wound healing over the wound bed. The latter promotes wound healing. The dressing and a method of treatment using the apparatus.

Abstract: An apparatus for cleansing wounds in which irrigant fluid from a reservoir connected to a conformable wound dressing and wound exudate from the dressing are moved by a device (which may be a single pump or two pumps) for moving fluid through a flow path which passes through the dressing and a means for providing simultaneous aspiration and irrigation of the wound. The apparatus also comprises means to apply high frequency vibrational energy, e.g. ultrasound, to the wound bed. The former removes materials deleterious to wound healing, while distributing materials that are beneficial in promoting wound healing over the wound bed. The latter promotes healing. The dressing and a method of treatment using the apparatus.

Abstract: A method for preventing infection and maintaining aseptic epidermal areas by preventing contaminated fluid from entering an open epidermal site on a user, comprising the steps of: removably attaching at least one adjustable strap to a reusable non-deforming flexible protective cover comprising a sealing member, covering the open epidermal site with the reusable non-deforming flexible protective cover while maintaining a space between the reusable non-deforming flexible protective cover and the open epidermal site, and tightening the at least one adjustable strap to secure the reusable non-deforming flexible protective cove over the open epidermal site to create a fluid-tight seal between the sealing member and the open epidermal site, thereby preventing contaminated fluid from entering the open epidermal site.

Abstract: A reduced-pressure, linear-wound closing bolster has a pivotable frame that moves from an extended position to a compressed position under the influence of reduced pressure. The closing bolster may have a first closing member, a second closing member, and an interior space. A manifold member is disposed within the interior space and may be coupled to the pivotable frame. When a reduced pressure is applied, the pivotable frame is urged from the extended position to the compressed position. A first gripping member for transmitting a closing force from the first closing member to a first edge of a linear wound may be attached. Likewise, a second gripping member for transmitting a closing force from the second closing member to a second edge of the linear wound may be attached. Systems and methods are also presented.

Abstract: A portable system for subatmospheric pressure therapy in connection with healing a surgical wound, including a wound dressing dimensioned for positioning relative to a wound bed of a subject and a subatmospheric pressure mechanism dimensioned to be carried or worn by the subject. The subatmospheric pressure mechanism includes a housing having a control unit adapted to draw a vacuum and a canister associated with the housing. The canister has a collection bag disposed therein, which is in fluid communication with the wound dressing to receive exudates from the wound bed. The collection bag is adapted to expand upon receipt of the fluids and has means to release gas from within the collection bag in connection with operation of the control unit. With this arrangement, the canister is attitude independent, i.e., the canister may be positioned on edge, on its side or on its end etc. while still maintaining operation of the control unit.

Abstract: A system for subatmospheric pressure therapy in connection with the healing of a surgical wound is disclosed. The system may be portable or semi-portable, thereby providing the subject with the ability to be partially or completely ambulatory through the course of the treatment. The system includes a wound dressing dimensioned for positioning relative to a wound bed of a subject and a portable subatmospheric pressure mechanism dimensioned to be carried or worn by the subject. The subatmospheric pressure mechanism includes a housing, a vacuum source at least partially disposed within the housing and in fluid communication with the fluid conduit, a filter in fluid communication with the vacuum source, and a collection canister for collecting exudates from the wound bed removed under subatmospheric pressure. An elevation member is mounted with respect to the housing.

Abstract: A wound therapy device is disclosed. The wound therapy device may include a housing for covering at least a portion of a wound and for sealing to a body surface of a patient. The housing may also include a liquid-retention chamber for retaining liquid therein and a vacuum connection for coupling to a vacuum source. The vacuum connection may be in gaseous communication with the liquid-retention chamber. The vacuum connection may be separated from the liquid-retention chamber by a liquid barrier.

Abstract: A wound treatment device for treating damaged body tissue comprising an encapsulating member having a size and shape capable of being attached to a patient to encapsulate a wound. A fluid communication member is provided for introducing treatment fluid within the encapsulating means for treatment of the wound. The fluid communication member is connected with a supply means for supplying treatment fluid thereto. The fluid communication member is capable of simultaneously transmitting multiple treatment fluids from the supply means into said encapsulating member. The inner surface of the wall of the encapsulating member is textured to allow fluid flow across the wound. The encapsulating member is also formed from a clear material to permit continuous visual inspection of the wound while maintaining a sterile environment.

Abstract: A reduced pressure therapy system includes a foam pad having a plurality of passages to distribute a reduced pressure to a tissue. The foam pad includes exterior surfaces and interior surfaces along the plurality of passages. A silver coating uniformly covers the exterior surfaces of the foam pad and the interior surfaces along the passages. A drape is adapted to be positioned over the foam pad to maintain a sealable space over the wound, and a vacuum source is in fluid communication with the sealable space to deliver the reduced pressure to the sealable space.

Abstract: A vacuum system for draining an open wound from liquids exuded therefrom, comprising an enclosure sealable to the wound circumference, a vacuum pump including a disposable pump unit detachably attachable to a non-disposable drive unit, and a waste container for collection of drained liquids. The enclosure has an outlet connected by means of a tube to an inlet of the pump unit and the waste container is connected to an outlet of the pump unit, such that when the vacuum pump is operated the drained liquids flow through the vacuum pump. The enclosure has one or more bleeding holes provided therethrough or adjacent to its outlet so that ambient air may enter the tube and flow together with the drained liquids. The enclosure and the waste container are disposable so that the drained liquids contact only disposable elements and may be disposed of together with all disposable elements.

Abstract: A surgical tissue therapy device includes a sealant layer and a collection chamber. The sealant layer functions so as to create a sealed enclosure or space between it and the surface of a patient by forming, preferably, an airtight seal around a surgical area of skin trauma. The closed incision tissue therapy device also comprises a collection chamber, which may comprise an elongate tubular chamber with a plurality of longitudinally spaced openings. The collection chamber may be configured to be in fluid communication with the sealant layer and the area of skin trauma and functions as to distribute the negative pressure applied to a surgically closed area of skin trauma. Preferably, the pressure under the sealant layer is reduced by expanding the volume of the enclosure space and thereby decreasing the density of air molecules under the sealant layer.

Abstract: A system for administering negative pressure therapy to a wound includes a screen adapted to be positioned at the wound. A reduced pressure source is in fluid communication with the screen, and a blood gas transducer is exposed to a reduced pressure provided by the reduced pressure source. The reduced pressure supplied by the reduced pressure source induces hyperperfusion of a blood gas at the wound.

Abstract: 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 portable subatmospheric pressure mechanism dimensioned to be carried or worn by the subject. The subatmospheric pressure mechanism includes a housing having a control unit, a collection canister, and means for releasably connecting the housing and the canister. The collection canister collects exudates from the wound bed which has been removed under subatmospheric pressure supplied by the control unit. The connection means between the housing and the canister permits the removal of the canister for emptying thereof or replacement with a new collection canister.

Abstract: A dressing for an open wound includes a cover layer dimensioned for positioning relative to a wound bed. The cover layer permits an evacuation of the space around the wound bed such that a sub-atmospheric pressure may be established to stimulate healing and facilitate the removal of fluid from the wound. Multiple performance zones in the cover layer allow the wound dressing to remain in position through repeated cycles of evacuation without placing undue strain on the wound bed. An outer peripheral zone may include a high peal-strength adhesive while an intermediate zone may include a shear resistant adhesive. A central zone may be devoid of any coating to maximize moisture transmission through cover layer.

Abstract: A cover layer for a vacuum wound therapy dressing includes a backing layer formed from a flexible polymeric membrane and an adhesive layer for affixing the backing layer over a wound bed to provide a substantially fluid-tight seal around a perimeter of the wound bed. The cover layer is reinforced with a reinforcement layer extending to a peripheral region of the backing layer to distribute forces associated with evacuating a reservoir, as defined by or within the cover, to stimulate healing of the wound bed.

Abstract: A wound dressing for use in a vacuum wound therapy treatment includes a backing layer for positioning over a wound to define a reservoir in which a reduced pressure may be maintained over the wound. A portal member affixed to the backing layer provides a connection to a reduced pressure source through an opening in an ambient surface. A primary port extends between the opening and a primary aperture in a reservoir surface to providing fluid communication between the reservoir and the reduced pressure source. At least one supplemental port establishes fluid communication between the primary port and a supplemental aperture in the reservoir surface that is distinct and substantially spaced from the primary aperture.

Abstract: A reduced pressure treatment system includes a reduced pressure source and a reduced pressure dressing. The dressing includes an interface layer adapted to be positioned at a tissue site and an absorbent layer in fluid communication with the interface layer to absorb liquid from at least one of the interface layer and the tissue site. A diverter layer is positioned adjacent the absorbent layer, and the diverter layer includes a plurality of apertures in fluid communication with the absorbent layer to distribute a reduced pressure to the absorbent layer. A cover is positioned over the diverter layer to maintain the reduced pressure at the tissue site.

Abstract: A portable closed wound drainage system that uses a pouch shaped dressing which is inserted into a wound. At least a portion of the outer surface of the pouch 1 is porous to allow exudates to enter. Exudates are removed from the pouch by flexible tubing which is secured inside the pouch at one end, and secured at the other end to a portable drain/suction unit. The pouch contains porous material, and may optionally contain beads and fillers which are antibacterial in nature. The tubing can have a single or multi-lumen structure with perforations in the side walls of the end of the tube that is inserted in the pouch to allow body fluids to enter laterally. The portable drain/suction unit is preferably a portable battery powered device. The pouch and the tube are sealed by a flexible sealing material which is applied to the outer surface of the skin around the periphery of the pouch and the tubing as it exits the pouch.

Abstract: Provided is a flowable bioresorbable tissue dressing comprising a gas-forming porogen and a gel or gel-forming solution. Also provided is kits for preparing the above-described tissue dressing. Further provided are methods of treating a tissue site of a mammal with the above dressing. Also provided is a reduced pressure delivery system for applying a reduced pressure tissue treatment to a tissue site.

Abstract: A portable, self-contained device is described for the topical application of oxygen and the removal of wound exudates to promote the healing of skin wounds. The device includes a wound dressing that incorporates at least one electrochemical cell for generating oxygen. The device can regulate the supply of oxygen to the wound at various concentrations, pressures and dosages and is used to produce a high concentration of oxygen at the wound site. By reversing the polarity of the power source a reduced pressure can be created in a reservoir attached to our device. The reduced pressure in the reservoir draws naturally flowing exudates away from the wound. Alternately, two reverse polarity cells are used to alternately supply oxygen and draw away exudates.

Abstract: This invention relates in general to a method and device for facilitating hemostasis and wound healing. In particular, the invention relates to the device comprising a polymeric material disposed on a scaffold that facilitates hemostasis and wound healing.

Abstract: A system for applying suction to a wound uses a reference airflow for monitoring system operation. A reference airflow (or “controlled leak”) to the suction source is provided when the system is in operation, such that deviation from the reference airflow can be monitored as an indication of a change in operation, such as a leak in the seal of the wound cover, a blockage of airflow from crimping of the suction conduit or overfill of the waste collector, or an inadvertent turn off or disconnect from the suction source.

Abstract: A disposable wound-healing device is disclosed that incorporates a housing having a fluid-impermeable material having a cavity and a perimeter that can be sealed in an air-tight manner over a wound region of a patient. The device is capable of producing a negative pressure over the wound region by either removing oxygen from within the cavity, or absorbing fluid into the cavity and then removing the fluid from the cavity. The oxygen may be removed via chemical absorption, by an electrochemical cell or by a chemical reaction that cannibalizes oxygen from the cavity. The fluid may be removed through the use of osmotic or electro-osmotic cells, or through a one-way valve. The negative partial pressure over the wound region promotes healing.

Abstract: The invention provides a vacuum tube attachment device for vacuum assisted wound dressings. The device is in the form of a patch that can be attached to the primary wound cover. The patch forms a substantially air-tight seal to the primary wound cover, and a vacuum tube is fixed to the patch such that the patch can be oriented on the wound cover to locate the tube near an opening in the cover to allow vacuum pressure to be communicated to the wound. The patch has an adhesive area around its perimeter for attaching the patch in a substantially air-tight seal to the wound cover at any convenient location on the cover. Several embodiments of the patch are described.

Abstract: An apparatus, system, and method for storing liquid from a tissue site are presented. The apparatus includes a delivery tube that may have at least one lumen. The delivery tube may be operable to transmit reduced pressure to the tissue site and to receive liquid from the tissue site. The apparatus may also include an absorbent material disposed in the at least one lumen. The absorbent material may be operable to absorb the liquid from the tissue site. The delivery tube may be formed with a number of recesses.

Abstract: An apparatus includes a fluid permeable dressing and a cover membrane configured to extend over the fluid permeable dressing. A tube is coupled to the fluid permeable dressing and is configured to apply suction through the fluid permeable dressing. A fluid reservoir is coupled to the cover membrane, the fluid vessel including an inlet port configured to receive a fluid and an outlet port fluidically coupled to the fluid permeable dressing.

Abstract: A composite structure, a suction-assisted wound treatment system including the composite structure and a method of making the same is disclosed. The composite structure includes a cover, a stiffener, and a releasable liner. The cover is a thin flexible film having an, upper surface, an undersurface, a principal portion, a pair of marginal edges and an adhesive on the undersurface. The stiffener is releasably secured to the upper surface of the principal portion of the cover and includes a handle which is more rigid than the principal portion of the stiffener. The handle, forms a portion of the undersurface of the stiffener and defines a finger space between it and portion of the cover disposed therebelow. The liner includes at least one section releasably secured to the adhesive of the cover. The stiffener and the handle are removable as a unit from the cover.

Abstract: An apparatus for aspirating and/or cleansing wounds comprising a flow path comprising a wound dressing having a backing layer and at least one outlet pipe for connection to a fluid off take tube and which has a wound contact integer which in use is in contact with the wound bed and in which the wound contact integer comprises a biodegradable and/or bioabsorbable fibrous electrospun scaffold.

Abstract: A portable closed wound drainage system that uses a pouch shaped dressing which is inserted into a wound. At least a portion of the outer surface of the pouch 1 is porous to allow exudates to enter. Exudates are removed from the pouch by flexible tubing which is secured inside the pouch at one end, and secured at the other end to a portable drain/suction unit. The pouch contains porous material, and may optionally contain beads and fillers which are antibacterial in nature. The tubing can have a single or multi-lumen structure with perforations in the side walls of the end of the tube that is inserted in the pouch to allow body fluids to enter laterally. The portable drain/suction unit is preferably a portable battery powered device. The pouch and the tube are sealed by a flexible sealing material which is applied to the outer surface of the skin around the periphery of the pouch and the tubing as it exits the pouch.

Abstract: A breastpump, manual or motorized, that includes a mechanism to regulate pressure change, e.g., vacuum, within a breastshield chamber, including in some cases to a maintained minimum pressure that is less than ambient (atmosphere). The pressure regulator provides control for varying negative pressure between a minimum value and a maximum value (and values in between), or to achieve a specific actually measured negative pressure value within a breastshield.