Disclosed herein are embodiments of a wound treatment apparatus with electronic components integrated within a wound dressing. In some embodiments, a wound dressing apparatus can comprise a wound dressing. The wound dressing can comprise an absorbent material, an electronics unit comprising a negative pressure source, the electronics unit integrated within the wound dressing and at least partially encapsulated by a preshaped film material or film. The preshaped film material can be incorporated into the wound dressing and can comprise an aperture configured to permit fluid communication between the absorbent material and the negative pressure source.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A61F 13/05 - specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
2.
FLUID MANAGEMENT FOR SENSOR ENABLED WOUND THERAPY DRESSINGS AND SYSTEMS
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.
A61L 15/42 - Use of materials characterised by their function or physical properties
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
Disclosed embodiments relate to apparatuses and methods for wound treatment. A wound dressing apparatus can comprises a wound contact layer, at least one absorbent layer, an electronics unit comprising a negative pressure source unit, and a cover layer. The electronics unit can comprise a plurality of sensors positioned on a printed circuit board and an inlet protection mechanism of the negative pressure source unit comprises a first recess in fluid communication with a first sensor and the outlet or exhaust mechanism negative pressure source unit comprises a second recess in fluid communication with a second sensor.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
4.
NEGATIVE PRESSURE WOUND TREATMENT APPARATUSES AND METHODS WITH INTEGRATED ELECTRONICS
Disclosed herein are embodiments of a wound treatment apparatus with electronic components integrated within a wound dressing. In some embodiments, a wound dressing apparatus can comprise a wound dressing. The wound dressing can comprise an absorbent material, an electronics unit comprising a negative pressure source, the electronics unit integrated within the wound dressing and at least partially encapsulated by a flexible film. The flexible film can comprise a window or aperture configured to permit fluid communication between the absorbent material and the negative pressure source.
A61F 13/05 - specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
A61F 13/00 - Bandages or dressings; Absorbent pads
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
5.
SENSOR ENABLED WOUND THERAPY DRESSINGS AND SYSTEMS IMPLEMENTING CYBERSECURITY
In some embodiments, a wound monitoring and/or therapy apparatus includes a wound dressing configured to be positioned in contact with a wound, the wound dressing comprising one or more sensors configured to obtain measurement data of at least one of the wound or periwound. The apparatus can also include a controller configured to maintain a device clock indicative of a non-real time clock, receive measurement data obtained by the one or more sensors, and transmit measurement data to a remote computing device according to a security protocol, the security protocol comprising including the device clock associated with the measurement data in the transmission.
Embodiments of apparatuses and methods for determining a positioning of sensors in a wound dressing are disclosed. In some embodiments, a wound monitoring and/or therapy system can include a wound dressing and a plurality of sensors configured to measure one or more wound characteristics. The wound monitor system can also include at least one positioning device configured to indicate position and/or orientation in the wound of a sensor of the plurality of sensors. In some embodiments, a detector can be configured to determine, based on the positioning data, the position and/or orientation in the wound of the sensor of the plurality of sensors. In some embodiments, the plurality of sensors can be positioned on a strip or string of material in communication with the positioning device.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A61F 13/00 - Bandages or dressings; Absorbent pads
7.
ANTIMICROBIAL OR WOUND CARE MATERIALS, DEVICES AND USES
Antimicrobial material which is a composite of a matrix component comprising a flexible hydrophilic polymer foam or fiber matrix comprising two matrix faces providing a release face and a reverse face or two release faces, and therebetween a structural matrix framework defining a network of cells having a cell network surface and therein a network of pores or cell openings, and a powder charge component comprising antimicrobial additive or wound care additive, wherein said powder charge is comprised at one said release face or both said faces and/or within said cell network wherein said composite is an assembly of preformed matrix component and powder charge component; and asymmetric material which is asymmetric having regard to distribution of said powder charge therein; and material wherein said power charge comprises flowing agent and/or bulking agent and/or binder and wherein said additive and/or flowing agent is co-located with said bulking agent and/or said binder; devices comprising said composite, methods for manufacture thereof comprising assembling said matrix and said powder charge, and use thereof.
Embodiments of apparatuses and methods for determining an emplacement of sensors in a wound dressing are disclosed. In some embodiments, a wound dressing includes a plurality of sensors configured to measure wound or patient characteristics. One or more processors are configured to receive wound or patient characteristics data as well as emplacement data. The received data can be used to determine an emplacement of the plurality of sensors, the wound dressing, or a wound. The sensors can include a set of nanosensors. The wound dressing can include pH sensitive ink which can be utilized for determining a placement of the wound dressing and determining a pH associated with the wound. The wound dressing can be used in a negative pressure wound therapy system.
A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons
A61B 5/06 - Devices, other than using radiation, for detecting or locating foreign bodies
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
9.
NEGATIVE PRESSURE WOUND THERAPY SYSTEM USING EULERIAN VIDEO MAGNIFICATION
Embodiments of tissue monitoring in combination with negative pressure wound therapy systems and methods are disclosed. In some embodiments, a monitoring and therapy system comprises collecting video images of a tissue site and amplifying said video images via Eulerian Video Magnification. Depending upon the changes detected via Eulerian Video magnification, negative pressure wound therapy may be delivered to the tissue site, stopped, or altered in some manner.
G16H 20/30 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
G16H 20/40 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
Embodiments of tissue monitoring and therapy systems and methods are disclosed. In some embodiments, a monitoring and therapy system comprises collecting video images of a tissue site, amplifying said video images via Eulerian Video Magnification, and determining a treatment parameter from the amplified video images detectable by Eulerian Video Magnification. If the treatment parameter differs from a threshold, an alert may be generated.
G16H 20/30 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to physical therapies or activities, e.g. physiotherapy, acupressure or exercising
G16H 20/40 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
G16H 30/40 - ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons
Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, a system includes a wound dressing, negative pressure source, switch, and control circuitry. The switch can include an actuator that toggles states of first and second pairs of contacts in response to a user input. The control circuitry can supply negative pressure with the negative pressure source when the state of the first pair of contacts is a first state and the state of the second pair of contacts is a second state, and the control circuitry can disable supply of negative pressure with the negative pressure source when the state of the first pair of contacts is not the first state or the state of the second pair of contacts is not the second state.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
H01H 9/00 - ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES - Details of switching devices, not covered by groups
12.
COMPONENT POSITIONING AND STRESS RELIEF FOR SENSOR ENABLED WOUND DRESSINGS
Systems and methods for component stress relief are disclosed. In some embodiments, a wound dressing includes a substantially stretchable wound contact layer including a wound facing side and a non-wound facing side. The wound facing side or the non-wound facing side of the wound contact layer can support 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 facing side or the non-wound facing side of the wound contact layer can include a region of substantially non-stretchable material that supports at least one electronic component from the plurality of electronic components. The at least one electronic component can be attached to the wound contact layer with adhesive material. Such arrangement can securely position the at least one electronic component and limit the mechanical strain on the at least one electronic component supported by the region.
A61F 13/00 - Bandages or dressings; Absorbent pads
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A61M 27/00 - Drainage appliances for wounds, or the like
A61F 13/05 - specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
13.
NEGATIVE PRESSURE WOUND THERAPY DEVICE CONTROL IN PRESENCE OF FAULT CONDITION
Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a wound dressing, negative pressure source, switch, interface element, and control circuitry. The negative pressure source, switch, and interface element can be disposed on or within the wound dressing. The control circuitry can be in a first or second mode. In the first mode, the control circuitry can cause supply of negative pressure in response to a first user input via the switch when the negative pressure source is not supplying negative pressure and prevent supply of negative pressure in response to the first user input while the negative pressure source is supplying negative pressure, and the control circuitry can change from the first mode to a second mode in response to a second user input via the interface element. In the second mode, the control circuitry can disable supply of negative pressure.
A61F 13/05 - specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
A61M 27/00 - Drainage appliances for wounds, or the like
14.
PRESSURE WOUND THERAPY STATUS INDICATION VIA EXTERNAL DEVICE
According to certain aspects, a negative pressure wound therapy system can include a negative pressure therapy apparatus configured to apply negative pressure to a wound of a patient. The negative pressure therapy device can include a wound dressing configured to be placed over the wound, a negative pressure source supported by the wound dressing, and a controller. The controller can include a processor configured to determine operating data of the negative pressure therapy apparatus and transmit the operating data. The negative pressure wound therapy system can further include a wireless communication device having a controller with one or more processors. The controller of the wireless communication device can be configured to be communicatively coupled to the negative pressure therapy apparatus and further configured to receive the operating data transmitted by the controller of the negative pressure therapy apparatus. The controller can be further configured to output the operating data.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
15.
PROTECTION OF ELECTRONICS IN NEGATIVE PRESSURE WOUND THERAPY SYSTEMS
Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a housing, negative pressure source, circuit board, and one or more controllers. The circuit board can be supported by the housing and include a conductive pathway extending around at least part of a perimeter of a first side of the circuit board. The conductive pathway can be electrically coupled to an electrical ground for the circuit board. The one or more controllers can be mounted on the circuit board and activate and deactivate the negative pressure source.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
Disclosed herein are embodiments of a wound treatment apparatus employing hydrophobic and hydrophilic dressing materials and/or coating of the layers of a wound dressing. In some embodiments, the hydrophobic and hydrophilic dressing materials and/or coating controls the migration of fluid within the wound dressing.
A61F 13/05 - specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
17.
SENSOR ENABLED WOUND MONITORING AND THERAPY APPARATUS
In some embodiments, a wound dressing that incorporates a number of sensors or sensors separate from the wound dressing can be utilized in order to monitor characteristics of a wound as it heals or to identify one or more risk factors or conditions that may precipitate a wound. In some implementations, a wound dressing configured to be positioned in contact with a wound includes a substantially flexible substrate supporting one or more sensors. The one or more sensors can include temperature sensors, conductivity sensors, multispectral optical measurements sensors, pH sensors, pressure sensors, colorimetric sensors, optical sensors, ultraviolet (UV) sensors, or infrared (IR) sensors.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
18.
SYSTEMS AND METHODS FOR DRIVING NEGATIVE PRESSURE SOURCES IN NEGATIVE PRESSURE THERAPY SYSTEMS
Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a source of negative pressure, a coupling circuit, a driving circuit, and a controller. The driving circuit supplies a driving signal to the source of negative pressure via the coupling circuit to cause the source of negative pressure to provide negative pressure to a wound dressing. The coupling circuit includes an inductive reactance that limits a rate of change over time of the driving signal. The controller controls the driving signal supplied by the driving circuit.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
19.
OPTIMIZING POWER TRANSFER TO NEGATIVE PRESSURE SOURCES IN NEGATIVE PRESSURE THERAPY SYSTEMS
Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a driving circuit that supplies a driving signal to a negative pressure source to cause the negative pressure source to provide negative pressure via a fluid flow path to a wound dressing. The apparatus furthers include a controller that adjusts a frequency of the driving signal supplied by the driving circuit according to a comparison of a previous magnitude and a subsequent magnitude of the driving signal while the negative pressure source provides negative pressure. The transfer of power to the negative pressure source can thereby be tuned to maximize an amount of power transferred to the negative pressure source.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
20.
WOUND DRESSINGS AND METHODS OF USE WITH INTEGRATED NEGATIVE PRESSURE SOURCE HAVING A FLUID INGRESS INHIBITION COMPONENT
Disclosed embodiments relate to apparatuses and methods for wound treatment. In some embodiments, a negative pressure source is incorporated into a wound dressing apparatus so that the wound dressing and the negative pressure source are part of an integral or integrated wound dressing structure that applies the wound dressing and the negative pressure source simultaneously to a patient's wound. The negative pressure source and/or electronic components may be positioned between a wound contact layer and a cover layer of the wound dressing. A component may be used to prevent wound exudate from contacting the inlet of the negative pressure source.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
21.
WOUND TREATMENT APPARATUSES AND METHODS WITH NEGATIVE PRESSURE SOURCE INTEGRATED INTO WOUND DRESSING
Disclosed embodiments relate to apparatuses and methods for wound treatment. In some embodiments, a negative pressure source is incorporated into a wound dressing apparatus so that the wound dressing and the negative pressure source are part of an integral or integrated wound dressing structure that applies the wound dressing and the negative pressure source simultaneously to a patient's wound. The negative pressure source and/or electronic components may be positioned between a wound contact layer and a cover layer of the wound dressing. The negative pressure source and/or electronic components may be separated and/or partitioned from an absorbent area of the dressing. A switch may be integrated with the wound dressing to control operation of the wound dressing apparatus. A connector may be direct air from an outlet of the negative pressure source to the environment. A non-return valve may inhibit back flow of air into the wound dressing.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
Disclosed embodiments relate to apparatuses and methods for wound treatment. In certain embodiments, a negative pressure wound therapy apparatus can include a spacer layer with an upper portion and a lower portion. The spacer layer can be configured to be wrapped around at least one edge of the absorbent layer with the upper portion of the spacer layer being above the absorbent layer and the lower portion of the spacer layer being below the absorbent layer. In some embodiments, a negative pressure wound therapy apparatus can include a first and second spacer layer and an absorbent layer. The first spacer layer can be positioned below the absorbent layer and the first spacer layer can have a perimeter larger than a perimeter of the absorbent layer. The second spacer layer can be positioned above the absorbent layer. The second spacer layer can have a perimeter larger than the perimeter of the absorbent layer.
A61F 13/05 - specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
A61F 13/00 - Bandages or dressings; Absorbent pads
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
23.
FLUIDIC CONNECTOR FOR NEGATIVE PRESSURE WOUND THERAPY
Disclosed herein are several embodiments of a wound treatment apparatus employing a fluidic connector for negative pressure wound therapy and methods of using the same. Some embodiments are directed to improved fluidic connectors for connecting to a wound site, for example a fluidic connector including a reinforcement, and methods of using the same.
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A61M 27/00 - Drainage appliances for wounds, or the like
Disclosed embodiments relate to apparatuses for wound treatment. In certain embodiments, a negative pressure wound therapy apparatus includes one or more electronic components configured to be incorporated into layers of the wound dressing or integrated on top of the wound dressing. In some embodiments, a negative pressure source is incorporated into the wound dressing. The negative pressure source can be sealed between two moisture vapor permeable cover layers or enclosed in a moisture vapor permeable pouch, and may be received in a recess of an absorbent layer or spacer layer of a wound dressing apparatus.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A61M 27/00 - Drainage appliances for wounds, or the like
25.
NEGATIVE PRESSURE WOUND THERAPY APPARATUS AND METHODS
Systems and methods for controlling a pump system for use in negative pressure wound therapy are described herein. In some embodiments, a method for controlling a pump system includes causing provision of negative pressure, via a flow path, to a wound dressing configured to be positioned over a wound, the flow path configured to fluidically connect the pump system to the wound dressing, measuring a first pressure value in the flow path at a first time, measuring a second pressure value in the flow path at a second time, calculating a first rate of pressure change using the first and second pressure values, and in response to determining that the calculated first rate of pressure change satisfies a threshold rate of change, providing an indication that the wound dressing is full, wherein the method is performed under control of a controller of the pump system.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A61M 27/00 - Drainage appliances for wounds, or the like
26.
NEGATIVE PRESSURE WOUND THERAPY APPARATUS AND METHODS
Apparatuses for use in negative pressure wound therapy are described herein. In some embodiments, the apparatus includes a pump assembly having a pump housing, a magnet, an electrically conductive coil, and a diaphragm, wherein the electrically conductive coil is configured to move a portion of the diaphragm to pump a fluid through the pump apparatus, and a dampener positioned within the pump assembly configured to reduce sound generated by the pump assembly during operation of the pump assembly. In some embodiments, the apparatus includes a housing having a first section and a second section, and an illumination source disposed within the housing adjacent the first section, wherein the illumination source is configured to illuminate the first section, wherein the first section is one of transparent and transluc ent.
A61F 13/05 - specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
A61F 13/00 - Bandages or dressings; Absorbent pads
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A61M 27/00 - Drainage appliances for wounds, or the like
F04B 49/12 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by varying the length of stroke of the working members
Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing systems, apparatuses, that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising a number of viewing portals that facilitate observation of wound tissue or healthy skin underlying the wound dressing. Some embodiments of the viewing portals are provided by forming through holes in internal dressing layers including absorbent material and transmission material, optionally by providing a plug material within the through holes, and by providing translucent or transparent cover layer and tissue contact layer materials.
A61M 27/00 - Drainage appliances for wounds, or the like
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
28.
COLLAPSIBLE DRESSING FOR NEGATIVE PRESSURE WOUND TREATMENT
Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing systems, apparatuses, and methods that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising an obscuring layer that may hide fluid contained therein and a stabilizing structure that may aid in wound closure.
Systems, devices, and methods are provided for monitoring wound status and progression by measuring pH levels indicated by pH-sensitive wound dressings. In some implementations, a wound is monitored by capturing an image of the pH-sensitive wound dressing and processing the captured image to determine the color of a pH indicator included on the wound dressing. The color of the indicator is determined in terms of RGB values from the image, and a pH value for the wound dressing is calculated from the dressing RGB values. The calculated pH value is then relayed to a user to be used as an indicator of wound status or health.
Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing systems, apparatuses, and methods that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising a bridge portion connecting two or more portions of an absorbent layer that facilitates trimming of the wound dressing to suitable sizes. Some embodiments provide for trimming the dressing in a gap between two or more portions of an absorbent layer and sealing the exposed portion of dressing after trimming when the dressing is applied to skin surrounding a wound.
Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing systems with an acquisition distribution layer that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising an obscuring layer that may hide fluid contained therein. Some embodiments may further comprise one or more viewing windows disposed therethrough so as to enable monitoring or examination of fluids contained therein.
A61F 13/05 - specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
A61F 13/00 - Bandages or dressings; Absorbent pads
Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing systems that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising an obscuring layer that may hide fluid contained therein. Some embodiments may further comprise one or more viewing windows disposed therethrough so as to enable monitoring or examination of fluids contained therein.
Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing systems that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising an obscuring layer that may hide fluid contained therein. Some embodiments may further comprise one or more viewing windows disposed therethrough so as to enable monitoring or examination of fluids contained therein.
A61F 13/05 - specially adapted for use with sub-pressure or over-pressure therapy, wound drainage or wound irrigation, e.g. for use with negative-pressure wound therapy [NPWT]
A61F 13/00 - Bandages or dressings; Absorbent pads
Embodiments disclosed herein are directed to negative pressure treatment systems and wound dressing sys-tems with an acquisition distribution layer that may be used for the treatment of wounds. In particular, some embodiments are directed to improved wound dressings comprising an ob-scuring layer that may hide fluid contained therein. Some em- bodiments may further comprise one or more viewing win-dows disposed therethrough so as to enable monitoring or ex-amination of fluids contained therein.
A61L 15/16 - Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
35.
APPARATUSES AND METHODS FOR NEGATIVE PRESSURE WOUND THERAPY
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.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
36.
CONTROLLING OPERATION OF A REDUCED PRESSURE THERAPY SYSTEM BASED ON DYNAMIC DUTY CYCLE THRESHOLD DETERMINATION
Negative pressure wound therapy apparatuses and dressings, and systems and methods for operating such apparatuses for use with dressings are disclosed. In some embodiments, controlling the delivery of therapy can be based on monitoring and detecting various operating conditions. An apparatus can have a controller configured to monitor a duty cycle of a source of negative pressure. Based on the monitored duty cycle, the controller can determine whether a leak is present and provide an indication to a user. The controller can determine a duty cycle threshold in order to achieve an optimal or near optimal balance between an uninterrupted delivery of therapy, avoidance inconveniencing a user, conserving power, achieving optimal or near optimal efficiency, and/or limiting vibrational noise. In some embodiments, the duty cycle threshold is determined based at least in part on a capacity of a power source and an operational time of the apparatus.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
Some embodiments have a pump assembly mounted to or supported by a dressing for reduced pressure wound therapy. The dressing can have visual pressure, saturation, and/or temperature sensors to provide a visual indication of the level of pressure, saturation, and/or temperature within the dressing. Additionally, 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 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 can be configured to be sterilized following the assembly of the pump such that all of the components of the pump have been sterilized.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
Some embodiments have a pump assembly mounted to or supported by a dressing for reduced pressure wound therapy. The dressing can have visual pressure, saturation, and/or temperature sensors to provide a visual indication of the level of pressure, saturation, and/or temperature within the dressing. Additionally, 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 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 can be configured to be sterilized following the assembly of the pump such that all of the components of the pump have been sterilized.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A61M 27/00 - Drainage appliances for wounds, or the like
39.
REDUCED PRESSURE THERAPY APPARATUSES AND METHODS OF USING SAME
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.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
40.
SYSTEMS AND METHODS FOR CONTROLLING OPERATION OF A REDUCED PRESSURE THERAPY SYSTEM
Negative pressure wound therapy apparatuses and dressings, and systems and methods for operating such apparatuses for use with dressings are disclosed. In some embodiments, controlling the delivery of therapy can be based on monitoring and detecting various operating conditions. An apparatus can have a controller configured to monitor the duty cycle of a source of negative pressure and, based on the monitored duty cycle, determine whether a leak is present. The controller can be configured to provide an indication that a leak is present. For example, the controller can be configured to suspend and/or pause the delivery of therapy, and to restart the delivery of therapy due to a timeout, request from a user, etc. In addition, the controller can be configured to pause and/or restart the delivery of therapy upon a request from the user, such as in response to the user operating a switch.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A wound dressing, a method of manufacturing a wound dressing, and a method of treating a patient are disclosed. The wound dressing may include an absorbent layer for absorbing wound exudate; and an obscuring element for at least partially obscuring a view of wound exudate absorbed by the absorbent layer in use.
Wound contacting members and methods, apparatuses, systems and kits incorporating the same are disclosed. The wound contacting members offer improved performance in terms of preventing or inhibiting tissue in-growth and improving tissue granulation growth. The wound contacting members may be used in negative pressure wound therapy (NPWT) applications.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A system, method, and apparatus are disclosed for dressing a wound and for minimizing scarring. The apparatus promotes scar-minimizing healing of a wound where negative pressure wound therapy is applied, and comprises a wound contact layer containing silicone, polysiloxanes, or other related compounds.
An apparatus and method are disclosed. The apparatus includes: a first layer comprising a plurality of openings each having a first open area; a further layer spaced apart from the first layer comprising a plurality of further openings each having a further open area; and an air impermeable, moisture vapour permeable cover layer over the first and further layers. A region between the first and further layers comprises a portion of a flow path for air and/or wound exudate flowing from a wound site and said first open area is less than said further open area.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A method and apparatus are disclosed for applying negative pressure to a wound site The apparatus comprises a source of negative pressure, a processing element, and a memory comprising instructions configured to, when executed on the processor, cause the apparatus to perform the steps of, via the source of negative pressure, attempting to generate a desired negative pressure at the wound site, if the desired negative pressure has not been generated after a first predetermined period of time, deactivating the source of negative pressure for a second predetermined period of time, and subsequently attempting to generate the desired negative pressure at the wound site
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A method and apparatus are disclosed for dressing a wound. The wound dressing includes a transmission layer having a first surface and a further surface spaced apart from the first surface by a relax distance in a relaxed mode of operation. A plurality of spacer elements extend between the first and further surfaces and, in a forced mode of operation, are locatable whereby the first and further surfaces are spaced apart by a compression distance less than the relax distance.
A method and apparatus are disclosed for dressing a wound. The apparatus comprises 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 vapour permeable.
A method and apparatus are disclosed for dressing a wound. The apparatus comprises an absorbent layer for absorbing wound exudate, a gas impermeable cover layer overlying the absorbent layer the cover layer, comprising at least one orifice Configured to allow negative pressure to be communicated though the cover layer in at least two spaced apart regions.
A method and apparatus are disclosed for dressing a wound. The apparatus comprises a liquid and gas permeable transmission layer, an absorbent layer for absorbing wound exudate, a gas impermeable cover layer overlying the absorbent layer and the transmission layer, the cover layer comprising an orifice connected to the transmission layer, and at least one element configured to reduce the rate at which wound exudate moves towards the orifice when a negative pressure is applied at the orifice.
A method and a suction port are disclosed for applying negative pressure to a wound dressing. The suction port comprises a connector portion for connecting the suction port to a source of negative pressure, a sealing surface for sealing the suction port to a cover layer of a wound dressing, and a liquid impermeable gas permeable filter element arranged to prevent a liquid entering the connector portion.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
The present invention relates to a wound packing material, suitable for use in negative pressure wound therapy, comprising a body of a porous material, the body comprising frangible regions defining a plurality of portions, the frangible regions allowing the portions to be selectively removed from the body. The invention further relates to methods of manufacturing the wound packing material, and to methods of its use.
This application discloses a bioresorbable synthetic scaffold having at least two fibrous materials. The first fibrous material has pores having a diameter from 1µm - 100µm. In use, it faces a wound bed for colonising by skin fibroblasts, promoting repair/regeneration of a patient's dermis. The second fibrous material has pores having a diameter from 50nm - 20µm and, in use, is located above the first fibrous material for colonising by keratinocytes, promoting repair/regeneration of the epidermis. Alternatively, the scaffold may have a first fibrous material having pores with a diameter of 4µm - 9µm for promoting dermal repair/regeneration, and a second fibrous material with pores having a diameter of 0.1µm - 3.5µm for promoting epidermal repair/regeneration.
A method and apparatus for measuring a volume of a wound are described, the method comprising the steps of: applying a dressing over a wound, the volume of which is to be measured, the dressing including at least a sealing drape over the wound so as to create a sealed wound cavity; creating a vacuum in said wound cavity by vacuum pump means so as to produce a predetermined vacuum in the wound cavity; measuring a volume of air extracted from said wound cavity in producing said predetermined vacuum; and, calculating a volume of said wound.
Apparatus and a method for the provision of TNP therapy to a wound are described, the apparatus comprising: a sealing membrane for covering a wound to form a wound cavity; one end of an aspirant conduit operably associated with the wound cavity; vacuum means provided at a distal end of the aspirant conduit for applying a vacuum to the wound cavity; and, air bleed means in fluid communication with the wound cavity. Various embodiments of air bleed port members are also described.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A method and apparatus are disclosed for dressing a wound. The apparatus comprises an absorbent layer for absorbing wound exudate, a liquid and gas permeable transmission layer over a wound contact layer, a cover layer over the absorbent layer, a filter layer over the absorbent layer, and a liquid and gas permeable transmission layer between the filter layer and the absorbent layer.
A method and apparatus are disclosed for dressing a wound. The apparatus comprises a sealing layer comprising at least one orifice, an absorbent layer over the sealing layer, absorbing wound exude and a liquid impermeable, gas permeable filter layer over the absorbent layer.
A61F 13/00 - Bandages or dressings; Absorbent pads
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A method and apparatus are disclosed for dressing a wound. The apparatus comprises an absorbent layer for ab-sorbing wound exudate, a liquid impermeable, gas permeable filter layer over the absorbent layer, a cover layer comprising at least one orifice and a first liquid and gas permeable transmission layer underlying the absorbent layer. The transmission layer is in fluid communication with the filter layer.
A61F 13/00 - Bandages or dressings; Absorbent pads
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
Apparatus for the application of topical negative pressure therapy to a wound site is described, the apparatus comprising: awound contacting element for retaining wound exudate fluid therein; awound covering element that provides a substantially airtight seal over the wound contacting element and wound site; a vacuum connection tube connecting a wound cavityto a vacuum source;and a vacuum source connected to adistal end of the vacuum connection tube.
A61F 13/00 - Bandages or dressings; Absorbent pads
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A method and apparatus are disclosed for determining status of a canister of a topical negative pressure (TNP) system. The method includes the steps of monitoring pressure provided by a pump element of the TNP system, determining at least one characteristic associated with the monitored pressure and determining status of at least one parameter associated with a canister of the TNP system responsive to the determined characteristics.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
60.
SILENCER FOR VACUUM SYSTEM OF A WOUND DRAINAGE APPARATUS
Apparatus (10, 200) for the provision of TNP therapy to a wound is described, the apparatus (10, 200) including: a waste canister (22, 204) into which fluid is aspirated from a wound by aspiration pump means (44, 248) and a fluid flow path (420, 422) for at least a part of said aspirated fluid on an outlet side of said aspiration pump means (44) wherein said fluid flow path (420, 422) on the outlet side comprises a silencing system (400) having a plurality of silencing elements (402, 404, 406) therein.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A61M 27/00 - Drainage appliances for wounds, or the like
61.
MODULAR WOUND TREATMENT APPARATUS WITH RELEASABLE CLIP CONNECTION
Apparatus (200) for the application of topical negative pressure therapy to a user of the apparatus (200) is described together with a method for protecting said apparatus (200) when subjected to abnormal stresses, the apparatus (200) comprising a device (202) and a waste canister (204) releasably connected thereto wherein the device (202) and waste canister (204) are connected together by clip means (222), said clip means (222) being subject to failure upon application of abnormal stresses thereby permitting separation of the device (202) and waste canister (204).
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A61M 27/00 - Drainage appliances for wounds, or the like
A carrying case (500) and handle (504) for accommodating a portable topical negative pressure therapy apparatus (200) comprising a device (202) and a waste canister (204) separable therefrom, the waste canister having an aspiration conduit (274) emerging therefrom is described, the carrying bag comprising an apparatus receiving pouch (502), said pouch having opening and closing means (522, 524) at a lower portion thereof and said handle (504) being directly attached to said apparatus.
A45C 11/00 - Receptacles for purposes not provided for in groups
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
63.
SILENCER FOR VACUUM SYSTEM OF A WOUND DRAINAGE APPARATUS
Apparatus for the provision of TNP therapy to a wound is described, the apparatus including: a waste canister into which fluid is aspirated from a wound by aspiration pump means and a fluid flow path for at least a part of said aspirated fluid on an outlet side of said aspiration pump means wherein said fluid flow path on the outlet side comprises a silencing system having a plurality of silencing elements therein
A61M 27/00 - Drainage appliances for wounds, or the like
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
The present invention relates to scaffolds which can be used as medical devices for guided tissue regeneration and repair, in particular the invention is directed to a scaffold comprising fibres having a mean fibre diameter of between from about 1.2 to 4.0 microns, wherein the fibres comprise a glycolide. The invention further relates to the use of the scaffolds for the selective capture of cell populations for a cell source material.
An apparatus for the treatment of a wound, comprising: a backing layer configured to be positioned over at least a portion of the wound; a porous layer configured to be positioned between the wound and the backing layer to define a chamber beneath the backing layer and an upper surface of the porous layer; and a filter configured to retain wound exudates in the chamber between the porous layer and the backing layer.
A61M 27/00 - Drainage appliances for wounds, or the like
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A wound treatment system for the treatment of a wound, comprising: a wound dressing comprising: a backing layer comprising a substantially flat, continuous sheet having a proximal, wound-facing face and a distal face, the backing layer capable of forming a relatively fluid-tight seal over the wound; a boss mounted to the backing layer at an opening in the backing layer; a permeable polymer film having a proximal, wound facing face and a distal face, wherein the distal face of the permeable polymer film is attached to the proximal face of the backing layer and the proximal face of the permeable polymer film is configured to contact the wound; and a resiliently flexible filler positioned between the backing layer and the permeable polymer film; a vacuum pump configured to apply negative pressure to the wound dressing; and a fluid offlake tube connected to the boss and configured to provide fluid communication between the vacuum pump and the wound dressing.
A61L 15/00 - Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
An apparatus for treating a wound, which comprises: a wound dressing member positionable over a wound; and a pump configured to move wound exudate from the wound into the wound dressing member, wherein the pump is positioned beneath the wound dressing member when the wound dressing member is positioned over the wound.
A61M 27/00 - Drainage appliances for wounds, or the like
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
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 recirculated by a device for moving fluid through a flow path which passes through the dressing and a means for fluid cleansing and back to the dressing, and in which the cleansing means sits in the wound in use. The cleansing means (which may be a single-phase, e.g. micro-filtration, system or a two-phase, e.g. dialytic system) removes materials deleterious to wound healing, and the cleansed fluid, still containing materials that are beneficial in promoting wound healing, is returned to the wound bed. Also, the dressing and a method of treatment using the apparatus.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A61M 27/00 - Drainage appliances for wounds, or the like
A multi-component wound dressing for treating a wound using a reduced pressure, comprising: a wound covering element adapted to be applied to the surface of the skin to cover the wound, thereby forming a wound space, the wound covering element having at least one connector configured to connect to a pressure reducing device and through which reduced pressure can be applied to the wound; a sorption unit configured to absorb wound exudate material in the wound space; and wherein the wound dressing is configured such that absorbed wound exudate material, when sequestered by the sorption unit, remains in the wound space until the sorption unit is removed.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A61M 27/00 - Drainage appliances for wounds, or the like
An apparatus for cleansing and applying therapy or prophylaxis to wounds, in which irrigant fluid containing a physiologically active material from a reservoir connected to a conformable wound dressing and wound exudate from the dressing are recirculated by a device for moving fluid through a flow path which passes through the dressing and a means for fluid cleansing and back to the dressing. The cleansing means (which may be a single-phase, e.g. microfiltration, system or a two-phase, e.g. dialytic system) removes materials deleterious to wound healing, and the cleansed fluid, still containing materials that are beneficial in promoting wound healing, is returned to the wound bed. The dressing and a method of treatment using the apparatus.
A61M 1/00 - Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
A61F 13/00 - Bandages or dressings; Absorbent pads
patents
