28 results about "Wound therapy" patented technology

Kit for use with A Selectively Configurable Wound Dressing A packaged kit of parts is provided for use with a selectively configurable wound dressing. The kit includes a piercing tool configured to pierce a covering layer of the wound dressing to produce an aperture therein and thereby configure the wound dressing for use in a pressure gradient wound therapy system. The kit may also include a) packaging indicating that the piercing tool is configured to pierce a covering layer of a wound dressing; (b) instructions instructing a user as to how to use the piecing tool; (c) one or more selectively configurable wound dressings; (d) a source of non-atmospheric pressure; (e) a port to connect the wound dressing to a source of non-atmospheric pressure; or (f) tubing for connection between a wound dressing and a source of non-atmospheric pressure. The kit is arranged within a sealed package.

A volume of a wound is estimated using a dynamic pressure response measured during instillation of fluid to the wound using a negative pressure wound therapy system. A previously estimated wound volume may be used to detect and prevent overfill of fluid to the wound during future instillation events. For example, real-time pressure measurements may be compared to model data representative of expected pressure at a wound having a volume equal to the previously estimated wound volume, with instillation being stopped if the observed pressure varies from the expected pressure. A comparison of a total volume of fluid instilled to the wound may also be compared to the previously estimated wound volume to prevent overfill. The comparison of wound volume estimated based on an instillation event may also be compared to a wound volume estimated using other methods to provide a higher confidence wound volume estimate.

A negative pressure wound therapy system may include a negative pressure source configured to provide via a fluid flow path negative pressure to a wound covered by a wound dressing and to aspirate fluid from the wound. The wound therapy system can include a multi- layer printed circuit board (PCB) supporting a plurality of electronic components including the negative pressure source, the plurality of electronic components including control circuitry configured to control operation of the negative pressure source, and the multi-layer PCB supporting a plurality of traces electrically connecting at least some of the plurality of electronic components. The multi-layer PCB can include a first layer joined with a second layer to reduce gas leaks in the fluid flow path.

The present disclosure describes techniques for providing directed instillation or irrigation of fluid during wound therapy to deliver cleansing fluid precisely onto a wound to improve wound cleansing. Directed instillation or irrigation of fluid onto wounds using techniques of the present disclosure can accelerate wound healing and provide improved patient outcomes. One example of the present disclosure is a device for providing directed fluid irrigation to a wound. The device can include an irrigation tube extending between a first end and a second end, with the second end having a perforated section or a non-perforated closed section. The device can further include a foam structure arranged around the perforated section, with the foam structure being configured to dispense fluid received from the perforated section uniformly into a wound for cleansing. The perforated section can include a plurality of perforations or a plurality of perforated irrigation tubes in examples.

Wound treatment systems and methods (e.g., having hydrophilic wound inserts), such as for negative-pressure and / or fluid-installation wound therapies. Some embodiments include a check-valve assembly between a wound dressing and a vacuum source.

This disclosure is directed towards the use of intelligent disposables in wound treatment devices and systems, such as negative pressure wound therapy devices and systemsand liquid jet debridement dev

Systems, devices, and methods related to wound therapy are disclosed. Different aspects of wound care, including mechanical wound therapy, wound monitoring, irrigation, debridement, and delivery of therapies to the wound surface can be combined to improve effectiveness of treatment. The disclosed techniques can provide various type of clinical applications of wound therapies, including reverse pulse lavage, gas therapy, bacterial count measurements, pressure-based ulcer prevention, pain management, peritoneal dialysis, and controlled tissue in-growth, among others. In some instances, the systems described herein can be made portable and operable without the use of electricity, which provides potential to provide mechanical wound therapy in settings without access to extensive clinical facilities.

In some embodiments, a wound monitoring and / or treatment device may include a wound dressing configured to be positioned over a wound. The wound dressing may support one or more sensors. The one or more sensors may include a cluster of optical sensor arrays, which may include optical sensors and a single light source. In some embodiments, the wound dressing may include a substantially retractable wound contact layer including a wound-facing side and a non-wound-facing side opposite the wound-facing side, the wound-facing side configured to be positioned in contact with a wound. The non-wound-facing side of the wound contact layer may support a plurality of electronic components and a plurality of electronic connections connecting at least some of the plurality of electronic components. The electronic component may include one or more sensors configured to obtain measurements of the wound or around the wound, or both.

The present disclosure generally relates to a negative wound therapy (NPWT) system (100) comprising a mobile negative pressure device (101), a tubing assembly (105) and a non-absorbent or an absorbent dressing (104).

A disposable device 1000 for use with a wound treatment or monitoring system, comprising a substrate 500A (Figure 4A) or housing, and electronic circuitry at least partially supported by the substrate

The invention relates to a connection device (22) for creating a vacuum-tight fluidic connection between a vacuum wound dressing (16) and a vacuum source (12), said device comprising: an elongated single-or multi-lumen connecting tube (24), in particular a film tube, which comprises a distal end portion (28) and a proximal end portion (26), it being possible to fluidically connect the distal end portion to the vacuum wound dressing in a vacuum-tight manner, and it being possible to fluidically connect the proximal end portion to the vacuum source in a vacuum-tight manner; and a support unit (46) which is located in a tube lumen (38) of the connecting tube, the support unit preventing the connecting tube from collapsing, in particular collapsing due to vacuum conditions, and being permeable to fluid in the longitudinal extension of the tube lumen. According to the invention: the support unit comprises at least one flat material web portion (48); the flat material web portion, in order to support the connecting tube, is structured by elevations (54) formed integrally with a plane (52) of the flat material web portion; and a continuous intermediate space (56) is formed between the elevations so that fluid can be transported through the intermediate space in the longitudinal extension of the tube lumen.

The present invention provides a central negative pressure therapy apparatus and a negative pressure therapy method and belongs to the technical field of medical devices. The central negative pressure therapy apparatus comprises a two-position three-way structure and a control mechanism. The two-position three-way structure is arranged between a wound therapy instrument and a central negative pressure control mechanism. The two-position three-way structure is provided with a first passage through which the wound therapy instrument and the central negative pressure control mechanism communicate, and a second passage through which the wound therapy instrument communicates with an atmospheric pressure environment. The control mechanism is used for controlling the two-position three-way structure to switch between the first passage and the second passage, thereby achieving intermittent negative pressure therapy for a wound of a patient. Using the central negative pressure therapy apparatus and the corresponding negative pressure therapy method can accurately achieve rapid switching between continuous negative pressure and intermittent negative pressure at low cost, thereby remedying the technical defect that intermittent negative pressure and stable negative pressure cannot be provided for a wound of a patient by means of central negative pressure.

The volume of the wound is estimated using the dynamic pressure response measured during infusion of fluid into the wound using a negative pressure wound therapy system. The previously estimated wound volume may be used to detect and prevent overfilling of the wound with fluid during future infusion events. For example, real-time pressure measurements can be compared to model data representing the expected pressure in a wound having a volume equal to the previously estimated wound volume, and infusion is stopped if the observed pressure differs from the expected pressure. The total volume of fluid infused into the wound can be compared to the previously estimated wound volume to prevent overfilling. The wound volume estimated based on the infusion event can also be compared to wound volumes estimated using other methods to provide a more reliable wound volume estimate.

In some embodiments, a wound therapy apparatus includes a wound dressing configured to be positioned over a wound, the wound dressing including a substantially stretchable wound contact layer supporting a plurality of electronic components and a plurality of electronic connections that connect at least some of the plurality of the electronic components. The wound contact layer can include a first plurality of flocked fibers positioned on a wound facing side of the wound contact layer, the first plurality of flocked fibers including soft material configured to cushion the wound contact layer when the wound dressing is positioned over the wound. The wound contact layer can include a second plurality of flocked fibers positioned on a non-wound facing side opposite the wound facing side.

A wound therapy system having a wound dressing for treating a wound includes a sensor that measures a pH level at a wound area. The sensor has a circuit that includes a first electrode and one or more second electrodes. The first electrode has a changeable conductivity that changes according to a hydrogen ion concentration level. The one or more second electrodes are configured with a fixed conductivity that does not change with the hydrogen ion concentration level. The first electrode is coated with a porous protective membrane formed from a sulfonated and / or carboxylated copolymer.

Disclosed herein are systems and devices for wound therapy and related methods of use. The systems and devices for wound therapy and related methods of use disclosed herein may comprise one or more cartridges for preparation of a regenerative epidermal suspension. One or more cartridges for preparation of a regenerative epidermal suspension may comprise a cover with a raised processing opening, a cup that can be received within the raised processing opening and has a screen, and a well plate that is positioned under the cover, has a well, and rotates relative to the cover such that the well aligns with the raised processing opening. One or more cartridges for preparation of a regenerative epidermal suspension comprises a cover with an opening that can receive a tissue sample.

Some embodiments comprise a pump assembly for reduced pressure wound therapy, comprising a housing, a flow pathway through the pump, one or more valves in communication with the flow pathway, a pump supported within or by the housing, and a one-way flow valve in fluid communication with the pump. The pump assembly can have a pressure sensor in communication with the flow pathway through the pump, and at least one switch or button supported by the housing, the at least one switch or button being accessible to a user and being in communication with the controller. The one-way flow valve can be configured to substantially prevent a flow of gas through the one-way flow valve in a direction of flow away from the pump. The pump assembly can have a controller supported within or by the housing, the controller being configured to control an operation of the pump. The pump has been sterilized following the assembly of the pump such that an inside and an outside of the housing, the flow pathway, the one or more valves, the pump, the controller, the battery compartment, and the at least one switch or button have been sterilized.

A wound care device for delivering topical oxygen therapy, negative pressure wound therapy, and a low intensity vacuum therapy for treatment of a wound. The wound care device may include an oxygen supply MEA, an oxygen consuming MEA, a vacuum pump and motor, a pressure sensor, and a power supply and electronic controls. A dressing may be connected to the wound care device for administering topical continuous oxygen therapy and simultaneous negative pressure wound therapy to a wound. A canister or exudate trap may be positioned between the dressing and the vacuum supply port of the vacuum pump to collect and store exudates from the wound. The canister may be combined with the dressing.

A mechanical wound therapy (MWT) system includes a connection for a vacuum source, which is routed through an airtight covering to a porous material positioned over the wound. The porous material may be a tubing network interspaced by a netting material constructed of biologically inert or bioabsorbable material. Alternatively, the porous material may be a layered unified dressing in which layers of mesh, netting or thin perforated film are separated and fixedly attached to functional elements of the dressing (e.g., irrigation tubing) or spacers. The vacuum and irrigation systems may be completely separated. An airtight sealing layer or foldable adhesive sealing layer may seal the dressing and facilitate sealing the dressing to the wound margins. Additional modular devices such as a wound approximating system, positive pressure bladders and adjuvant therapy modules as well as enhanced monitoring technology can be added to synergistically increase the capabilities of each dressing.

Disclosed herein are systems and devices for wound therapy and related methods of use. The systems and devices for wound therapy and related methods of use disclosed herein may comprise one or more cartridges for preparation of a regenerative epidermal suspension. One or more cartridges for preparation of a regenerative epidermal suspension may comprise a cover with a raised processing opening, a cup that can be received within the raised processing opening and has a screen, and a well plate that is positioned under the cover, has a well, and rotates relative to the cover such that the well aligns with the raised processing opening. One or more cartridges for preparation of a regenerative epidermal suspension comprises a cover with an opening that can receive a tissue sample.

The invention relates to a bandage (1, 13, 19, 22, 23, 24) for wound treatment, comprising an adhesive backing layer (2, 3), a wound pad (4) and a silicone-coated wound contact layer (5, 6, 7). With the invention an island bandage for wound treatment is provided, which can be well adhered at the wound site, but can also be removed again from the wound site without causing pain and without damaging the wound surface. In a preferred embodiment, the bandage is also provided for negative pressure wound therapy.