92 results about "Wound therapy" patented technology

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.

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 to improved fluidic connectors or suction adapters for connecting to a wound site, for example using softer, kink-free conformable suction adapters.

This disclosure includes wound dressings and systems with remote oxygen generation for topical wound therapy and related methods. Some systems include a dressing for facilitating delivery of oxygen to the target tissue, the dressing having: a first manifold that defines a plurality of gas passageways and is configured to allow communication of oxygen to the target tissue; a gas-occlusive layer configured to be disposed over the first manifold and coupled to tissue surrounding the target tissue such that: an interior volume is defined between the gas-occlusive layer and the target tissue; and the gas-occlusive layer limits escape of oxygen from the interior volume between the gas-occlusive layer and the tissue surrounding the target tissue; a container outside the interior volume, the container having a sidewall that defines a chamber configured to be in fluid communication with the interior volume; and an oxygen-generating material disposed within the chamber of container and configured to release oxygen when exposed to water.

A wound therapy system includes a dressing an instillation pump fluidly communicable with the dressing and configured to provide instillation fluid to the dressing, a negative pressure pump fluidly communicable with the dressing and configured to remove air from the dressing, and a control circuit communicably coupled to the instillation pump and the negative pressure pump. The control circuit is configured to control the instillation pump to provide an amount of the instillation fluid to the dressing, provide a soak period, and control the negative pressure pump to provide a cyclic variation of negative pressure at the dressing.

An airway for a pressure gradient wound therapy device comprising a spacer layer comprising a proximal end, an elongate middle portion and a distal end; a top layer constructed from a liquid impermeable material provided over the spacer layer; a bottom layer constructed from a liquid impermeable material provided below the spacer layer, wherein the top layer and the bottom layer substantially enclose the spacer layer; and a conduit comprising a proximal end and a distal end, wherein the proximal end of the conduit comprises at least a first elongate slot, wherein the first elongate slot forms at least a first split end and a second split end in the conduit, and further wherein at least part of the spacer layer is arranged in the elongate slot.

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.

An airway for a pressure gradient wound therapy device comprising a transmission layer comprising a proximal end, an elongate middle portion and a distal end, the transmission layer comprising an upper layer and a lower layer defining a space therebetween; a top layer constructed from a liquid impermeable material provided over the transmission layer; a bottom layer constructed from a liquid impermeable material provided below the transmission layer, wherein the top layer and the bottom layer enclose at least a portion of the transmission layer; and a conduit comprising a proximal end and a distal end, wherein the proximal end of the conduit is arranged in the space between the upper and lower layers of the proximal end of the transmission layer.

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.

To provide a wound dressing system configured to provide instillation fluid and negative pressure wound therapy for fascia incision in incision of a deep abdominal part.SOLUTION: A system for providing instillation fluid to a deep abdominal wound includes an instillation module and a connection structure. The instillation module defines a first surface and a second, abdominal contents-facing surface. The instillation module includes a distribution hub configured to receive instillation fluid from an instillation fluid source. The connection structure includes a first surface, a second, abdominal contents-facing surface; and a flow path extending between the first surface and the second surface. The flow path includes an inlet configured to receive an instillation fluid conduit engaged with the instillation fluid source and an outlet in fluid communication with the instillation module. The flow path defines an axis extending between the inlet and the outlet. The flow path is configured to compress in a direction defined by the axis.SELECTED DRAWING: Figure 1

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 and methods for negative pressure wound therapy. The system includes a dressing, a therapy device, and a pressure sensing device. The dressing is configured to be positioned at the tissue site. The therapy device is configured to fluidly couple to the dressing. The therapy device includes a pump configured to deliver negative pressure to the dressing, a first wireless communication device, and a controller configured to control the pump. The pressure sensing device is configured to be fluidly coupled to the dressing at a sensing location external to the therapy device and to wirelessly communicate a pressure signal from the sensing location to the first wireless communication device.

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.

The wound therapy system includes a dressing sealable over a wound and defining a wound space between the dressing and the wound, a tube in fluid communication with the wound space, and a canister in fluid communication with the tube. The canister, the tube, and the dressing define an enclosed space including the wound space. The wound therapy system also includes a therapy unit coupled to the canister. The therapy unit includes a sensor configured to measure pressure within the enclosed space, a valve disposed between the enclosed space and the ambient environment and controllable between an open position and a closed position, and a control circuit. The control circuit is configured to control the valve to alternate between the open and closed positions to allow airflow through the valve, receive measurements from the sensor, and determine a volume of the wound space based on the measurements.

The utility model relates to the technical field of medical equipment, and particularly discloses an oxygen wound treatment instrument which comprises an oxygen supply assembly, an atomizing cup and an oxygen therapy cover, the oxygen supply assembly is connected with the atomizing cup through a hose, the oxygen therapy cover is installed on the atomizing cup, the oxygen therapy cover is in a lotus seedpod shape, and a plurality of evenly-distributed air supply holes are formed in the oxygen therapy cover; according to the oxygen wound therapeutic apparatus, the inconvenience that a patient needs to hold a catheter by hand in a traditional method is solved, the contact area of oxygen and the wound is remarkably increased through the multiple evenly-distributed air supply holes, the therapeutic effect is improved accordingly, the porous design and the atomizing cup structure are beneficial for adjusting the oxygen humidity, stimulation to the skin is reduced, and the therapeutic effect is improved. The stimulation of dry oxygen to the skin is reduced, and the discomfort of a patient is reduced. According to the overall design, the problems that a traditional oxygen treatment method is inconvenient to use, the treatment effect is limited, and the skin is irritated are effectively solved, the treatment compliance can be improved, conditions are created for long-time treatment, and continuous healing of the wound surface is facilitated.

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).

Systems, apparatuses, and methods for providing negative pressure to a tissue site are disclosed. Illustrative embodiments may include an apparatus or system for delivering negative-pressure to a tissue site, which can be used in conjunction with low-profile distribution components for wound therapy. Such apparatus may include a low-profile dressing interface or connector comprising at least two side-by-side fluid pathways fluidly coupled to a recessed space of the connector, one for providing negative pressure to a tissue interface or manifold and the other for sensing the negative pressure within the recessed space adjacent the tissue interface. In some embodiments, for example, the apparatus may comprise a first layer of polymeric film having an outer surface, an inner surface, and a plurality of features extending from the inner surface, and a second layer of polymeric film coupled to the first layer. The second layer may have an outer, tissue-facing surface and an inner surface coupled to the first layer and covering the plurality of features to form an enclosed space with the inner surface of the first layer and a plurality of flow channels within the enclosed space. The second layer also includes an aperture defining the recessed space adapted to fluidly coupling the enclosed space to the tissue interface.

Systems, apparatuses, and methods for providing negative pressure to a tissue site are disclosed. Illustrative embodiments may include an apparatus or system for delivering negative-pressure to a tissue site, which can be used in conjunction with low-profile distribution components for wound therapy. Such apparatus may include a low-profile dressing interface or connector comprising at least two side-by-side fluid pathways fluidly coupled to a recessed space of the connector, one for providing negative pressure to a tissue interface or manifold and the other for sensing the negative pressure within the recessed space adjacent the tissue interface. In some embodiments, for example, the apparatus may comprise a first layer of polymeric film having an outer surface, an inner surface, and a plurality of features extending from the inner surface, and a second layer of polymeric film coupled to the first layer. The second layer may have an outer, tissue-facing surface and an inner surface coupled to the first layer and covering the plurality of features to form an enclosed space with the inner surface of the first layer and a plurality of flow channels within the enclosed space. The second layer also includes an aperture defining the recessed space adapted to fluidly coupling the enclosed space to the tissue interface.

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

A negative pressure wound therapy system can include a reduced pressure wound therapy device and a wound therapy monitoring device configured to emit an indication when it detects that at least one parameter associated with the provision of negative pressure wound therapy is outside an operational range. The wound therapy monitoring device can operate in a low power mode in which the at least one parameter is periodically monitored. The reduced pressure wound therapy device can be configured to detect the indication and selectively generate an alarm. In some cases, the wound therapy monitoring device can be disposed in a wound or in a fluidic connector connecting the reduced pressure wound therapy device to the wound.

One implementation of the present disclosure is a method for dynamically controlling an alarm of a negative pressure wound therapy (NPWT) device, according to some embodiments. In some embodiments, the method includes initiating NPWT, comparing an initial pump duty to a threshold value to determine a dressing application quality, monitoring a leakage rate of the NPWT, setting a leak threshold value based on the dressing application quality, determining leakage event occurrences in response to the leakage rate exceeding the leak threshold value at multiple times, adjusting the leak threshold value based on at least one of a number of the leakage events over the time period, a time duration between sequentially occurring leakage events of the leakage events, and the dressing application quality, and causing a user interface device to display a leak alert in response to the leakage rate exceeding the adjusted leak threshold value.

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. The collection bag may include a hydrophobic vent or material for releasing the gases. In another embodiment, the collection bag comprises a gas permeable material. The collection bag may include one of pleats or bellows.