Means For Removing Material From Surface By Suction Patents (Class 604/313)
  • Patent number: 11364151
    Abstract: A method and apparatus are disclosed for dressing a wound. The apparatus comprises an absorbent layer for absorbing 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.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: June 21, 2022
    Assignee: Smith & Nephew PLC
    Inventor: Edward Yerbury Hartwell
  • Patent number: 11358084
    Abstract: An alternative device to a mask that blocks a patient's aerosol and avoids contamination of the patient's surrounding environment is described. The device has a flexible arm that holds an aerosol disposal pipe with one side connected to a wall, a bed, or pole attached to a floor. The second side of the flexible arm is attached to a circular or elliptical pipe that covers the face of the patient. The elliptical or circular pipe comprises of two independent moving and rotating halves to create two aerosol sucking planes. The sucking function is provided by sucking fans attached to the two halves of the circular or elliptical pipes or by a remote pump. The sucked aerosol may be filtered and released to the environment or guided to a sink P-Trap or an inlet of sewer.
    Type: Grant
    Filed: December 12, 2021
    Date of Patent: June 14, 2022
    Assignee: AEROCONTAIN TECHNOLOGIES INC.
    Inventors: Kiomars Anvari, Seyed Vahid Sahiholnasab, Joel Nicholas Fransen
  • Patent number: 11351064
    Abstract: A method and apparatus are disclosed for dressing a wound. The apparatus comprises an absorbent layer for absorbing 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.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: June 7, 2022
    Assignee: Smith & Nephew PLC
    Inventor: Edward Yerbury Hartwell
  • Patent number: 11324875
    Abstract: The present invention relates to a negative pressure wound therapy device, system and method. The negative pressure wound therapy device is connected with a dressing, and comprises a housing, a control circuit board, a pump, and an aspiration conduit. The pump generates negative pressure. The pump may comprise a voltage-actuated deformation element (such as piezoelectric vibration element) to push fluid from an aspiration end to a discharge end. The aspiration conduit has a pump end and a dressing end. The pump end is fluidly connected to the aspiration end of the pump, and the dressing end is fluidly connected to the dressing used for covering a wound. The control circuit board is disposed in the housing, controls the pump to generate the negative pressure in the aspiration conduit, and applies negative pressure to the wound covered by the dressing via the aspiration conduit.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: May 10, 2022
    Assignee: XIAMEN SUNEETEK MEDICAL EQUIPMENT CO., LTD.
    Inventors: Po-Han Chang, Shih Hua Hsiao, Bo Cheng Huang, Chi Yuan Chen, Ting Hsuan Chung
  • Patent number: 11315681
    Abstract: Embodiments of a negative pressure wound therapy systems and methods for operating the systems are disclosed. In some embodiments, a system includes a pump assembly, canister, and a wound dressing configured to be positioned over a wound. The pump assembly, canister, and the wound dressing can be fluidically connected to facilitate delivery of negative pressure to a wound. The pump assembly can be configured to communicate data to a remote computer. The data can include location information, usage information, therapy information, and the like. Remote management and tracking of the pump assembly can be performed.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: April 26, 2022
    Assignee: Smith & Nephew, Inc.
    Inventors: Edward Armstrong, Carrie Lee Childress, Tim Warren Dana, William W. Gregory, William Joseph Jaecklein, Michael Mosholder, Felix C. Quintanar
  • Patent number: 11305048
    Abstract: A vacuum regulator device having a vacuum regulator and a vacuum gauge on a housing line that is configured to be in fluid communication with a patient include an electronic valve that selectively opens and closes the housing line. The vacuum gauge is located between the vacuum regulator and the patient and includes an electronic flow sensor upstream. The electronic flow sensor provides feedback to the vacuum regulator.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: April 19, 2022
    Assignee: Medtec Medical, Inc.
    Inventor: Michael D. Kilcran
  • Patent number: 11305050
    Abstract: A negative pressure wound therapy device that includes a first tubing connectable in flow communication with a source of negative pressure configured for application of negative pressure to a wound site, a second tubing in flow communication with the wound site, and a valve.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: April 19, 2022
    Assignee: DeRoyal Industries, Inc.
    Inventors: Vincent Denis Jardret, Jonathan Matthew Cayce, Walter Cleveland Cowart, Scott Douglas Barnes, Gregory S. Hodge
  • Patent number: 11253639
    Abstract: 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.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: February 22, 2022
    Assignee: Smith & Nephew PLC
    Inventors: Julie Allen, Sarah Jenny Collinson, Edward Yerbury Hartwell, Derek Nicolini
  • Patent number: 11224543
    Abstract: A method for detecting a state of a dressing includes measuring air pressure within a tube. The tube provides airflow between a pump device and the dressing. The method also includes determining whether the air pressure differs from a pressure setpoint by more than a preset limit, and running the pump to cause the air pressure to approach the pressure setpoint. In response to a determination that the air pressure does not differ from the pressure setpoint by more than the preset limit, the method also includes determining a duration of time since a last running of the pump, determining whether the duration of time since the last running of the pump exceeds a threshold duration, and, in response to a determination that the duration of time since the last running of the pump exceeds the threshold duration, generating an alert that indicates that the dressing is full.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: January 18, 2022
    Assignee: KCI Licensing, Inc.
    Inventor: Christopher B. Locke
  • Patent number: 11179276
    Abstract: A method and apparatus are disclosed for dressing a wound. The apparatus comprises an absorbent layer for absorbing 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.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: November 23, 2021
    Assignee: Smith & Nephew PLC
    Inventor: Edward Yerbury Hartwell
  • Patent number: 11173074
    Abstract: An absorbent structure, including a sensor system, can sense and measure the level of wetness contained within the absorbent structure as well as sense and measure environmental conditions. The sensor system may include passive RFID sensors or tags, RFID readers, antenna, a tuning module, a processing module, a memory module and a wireless communication module. The absorbent structure may further include two or more sensors, with a first sensor placed in a first area most likely to first be exposed to liquid and a second sensor spaced apart from the first sensor in an area likely to be exposed to liquid only after the absorbent structure has become more saturated.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: November 16, 2021
    Assignee: Medline Industries, Inc.
    Inventors: Daniel Love, David Noskowicz, Vladimir Anastasov
  • Patent number: 11147715
    Abstract: A method and apparatus are disclosed for dressing a wound. The apparatus comprises an absorbent layer for absorbing 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.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: October 19, 2021
    Assignee: Smith & Nephew PLC
    Inventor: Edward Yerbury Hartwell
  • Patent number: 11116670
    Abstract: A method and apparatus are disclosed for dressing a wound. The apparatus comprises an absorbent layer for absorbing 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.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: September 14, 2021
    Assignee: Smith & Nephew PLC
    Inventor: Edward Yerbury Hartwell
  • Patent number: 11103385
    Abstract: Methods and apparatuses are disclosed relating to the creation and use of bespoke wound fillers and other wound treatment apparatuses. Some embodiments provide for the creation of bespoke wound fillers based on characteristics of a wound. Certain embodiments also include the use of bespoke wound fillers in combination with negative pressure to treat a wound.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: August 31, 2021
    Assignee: Smith & Nephew PLC
    Inventors: Edward Yerbury Hartwell, Mark Richardson, Carl Saxby
  • Patent number: 11083632
    Abstract: A method and apparatus are disclosed for dressing a wound. The apparatus comprises an absorbent layer for absorbing 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.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 10, 2021
    Assignee: Smith & Nephew PLC
    Inventor: Edward Yerbury Hartwell
  • Patent number: 11045598
    Abstract: Apparatus for the application of topical negative pressure therapy to a wound site is described, the apparatus comprising: a wound contacting element for retaining wound exudate fluid therein; a wound covering element that provides a substantially airtight seal over the wound contacting element and wound site; a vacuum connection tube connecting a wound cavity to a vacuum source; and a vacuum source connected to a distal end of the vacuum connection tube.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: June 29, 2021
    Assignee: Smith & Nephew PLC
    Inventor: Bryan Greener
  • Patent number: 11027051
    Abstract: Methods and apparatuses are disclosed for applying negative pressure to a wound site. In some embodiments, the apparatus comprises a source of negative pressure, a processing element, and a memory comprising instructions configured to, when executed on the processing element, cause the apparatus to attempt to generate, via the source of negative pressure, a desired negative pressure at the wound site. If the desired negative pressure has not been generated after a first predetermined period of time, the instructions cause the apparatus to: deactivate the source of negative pressure for a second predetermined period of time, and subsequently attempt to generate the desired negative pressure at the wound site.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: June 8, 2021
    Assignee: Smith & Nephew PLC
    Inventor: Derek Nicolini
  • Patent number: 10898388
    Abstract: 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.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: January 26, 2021
    Assignee: Smith & Nephew PLC
    Inventors: Ben Alan Askem, John Philip Gowans, Allan Kenneth Frazer Grugeon Hunt
  • Patent number: 10874556
    Abstract: A wound dressing comprising: an air-impermeable backing sheet having an aperture for attachment of a suction element; an air-permeable screen layer on a wound facing side of the backing sheet; and a substantially air-impermeable hydrogel layer extending across a wound facing side of said screen layer and joined in substantially airtight fashion to a periphery of said backing sheet around said screen layer. Also provided is a wound treatment system comprising a wound dressing according to the invention and a source of suction in fluid communication with said aperture.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: December 29, 2020
    Assignee: KCI USA, Inc.
    Inventor: Paul Howard Lowing
  • Patent number: 10779993
    Abstract: A wound exudate management system includes a pump for generating negative pressure, a dressing for covering and protecting a wound of a user, a tube including an interior lumen, the tube disposed between the pump and the dressing such that the pump and the dressing are in fluid communication via the interior lumen. The dressing includes an adhesive layer for adhering the dressing adjacent the wound, a wound contact layer, a pressure dispersion layer, a plurality of layers of absorbent material disposed between the wound contact layer and the pressure dispersion layer, a backing layer having a first surface and a second surface, the first surface of the backing layer being adjacent, and in contact with, the pressure dispersion layer and the adhesive layer, and a flexible connector disposed on the second surface of the backing layer.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: September 22, 2020
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Stephen Bishop, Duncan Gilding, Bryony Lee, Shauna Powell
  • Patent number: 10758650
    Abstract: In various aspects, the wound therapy apparatus disclosed herein includes a wound interface that defines an enclosed space over a wound bed that is fluid tight when secured to a skin surface around the wound bed. The wound therapy apparatus includes a control group that cooperates with the wound interface to regulate input of input fluid comprising a gas having an O2 concentration greater than atmospheric air into the enclosed space and to regulate the withdrawal of output fluid from the enclosed space in order to vary an actual pressure pa within the enclosed space generally between a minimum pressure pmin and a maximum pressure pmax. Related methods of use of the wound therapy apparatus are disclosed herein.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: September 1, 2020
    Inventor: Edward D Lin
  • Patent number: 10744237
    Abstract: A drainage device (1) particularly for aspiration in case of therapies with aspiration, fistulas, dehiscences of surgical wounds, bedsores, traumas and similar lesions, comprising an aspiration pouch (2) which is supported by a sheet-like element (5) which can be associated with the lesion (10) and is connected to aspiration means (3) by way of a connecting element (4).
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: August 18, 2020
    Assignee: NIDICARE GMBH
    Inventors: Daniele Guidi, Alberto Guidi
  • Patent number: 10716711
    Abstract: A system for treating a tissue site of a patient includes a dressing filler adapted to be positioned at the tissue site. The dressing filler includes a porous substrate having at least one compressed region and at least one expanded region. The compressed region of the porous substrate is held in a compressed state by a first coating capable of dissolving in the presence of a fluid, and the expanded region of the porous substrate is held in an expanded state by a second coating.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: July 21, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Timothy Mark Robinson
  • Patent number: 10716881
    Abstract: A method and apparatus are disclosed for providing negative pressure at a wound site. The apparatus includes a negative pressure reservoir and a reservoir valve for selectively connecting the reservoir to a wound chamber at a wound site. In particular, but not exclusively, the present invention relates to an apparatus including a source of negative pressure which acts as a negative pressure reservoir to continually or repeatedly “top up” an applied negative pressure so that negative pressure applied at a wound site can be maintained within desired limits for a relatively long period of time.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: July 21, 2020
    Assignee: Smith & Nephew PLC
    Inventor: Bryan Greener
  • Patent number: 10682258
    Abstract: Methods, dressings, and systems for promoting epithelialization of a wound or other tissue are presented. The methods, dressings, and systems help form simulated rete pegs. In one instance, an epithelialization dressing is disclosed that may include a dressing body having a plurality of projections. A plurality of apertures is formed on a portion of the dressing body. The dressing helps manage fluids on the wound and the projections form cavities into which epithelial tissue migrates to from epithelial columns that function like rete pegs. Other dressings, methods, and systems are disclosed.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: June 16, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Michael Manwaring, Robert Peyton Wilkes, Braden King-Fung Leung
  • Patent number: 10675391
    Abstract: The invention relates to a vacuum sponge unit (2) for use in human or animal bodies, comprising a fluid collecting member (10), in particular a sponge unit, and a fluid communication member (20), in particular a drainage tube, which is disposed at least partially in the fluid collecting member (10) and is connected in fluidic communication to the fluid collecting member (10). In order to improve known devises, the inventions proposed developing the vacuum sponge unit (2) such that the fluid collecting member (10) has a channel (11) for guiding a guide member (3), in particular a guide wire, and/or a delivery member (4), in particular a probe unit and/or an endoscope, through the fluid collecting member (10).
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: June 9, 2020
    Assignee: LOHMANN & RAUSCHER GMBH & CO., KG
    Inventors: Gunnar Loske, Tobias Schorsch
  • Patent number: 10632223
    Abstract: A substrate includes a double-network polymer system including a cross-linked, covalently-bonded polymer and a reversible, partially ionicly-bonded polymer, wherein the substrate has a moisture level less than or equal to 15 percent of the total weight of the substrate, and wherein the substrate includes a latent retractive force. A method for manufacturing a substrate includes producing a double-network hydrogel including a cross-linked, covalently-bonded polymer and a reversible, ionicly-bonded polymer; elongating by force the double-network hydrogel in at least one direction; dehydrating while still elongated the double-network hydrogel to form a substantially-dehydrated double-network polymer system; and releasing the force to produce the substrate.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: April 28, 2020
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Xuedong Song
  • Patent number: 10624999
    Abstract: A drainage device (1) particularly for aspiration in case of therapies with aspiration, fistulas, dehiscences of surgical wounds, bedsores, traumas and similar lesions, comprising an aspiration pouch (2) which is supported by a sheet-like element (5) which can be associated with the lesion (10) and is connected to aspiration means (3) by way of a connecting element (4).
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: April 21, 2020
    Assignee: NIDICARE GMBH
    Inventors: Daniele Guidi, Alberto Guidi
  • Patent number: 10610414
    Abstract: 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 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.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: April 7, 2020
    Assignee: Smith & Nephew PLC
    Inventors: Edward Yerbury Hartwell, Varuni Rachindra Brownhill, John Gowans
  • Patent number: 10568768
    Abstract: A reduced-pressure system for treating tissue, such as damaged subcutaneous tissue, includes a shaped dressing bolster for placing on the patient's epidermis and substantially sized to overlay the damaged subcutaneous tissue. The system further includes a sealing subsystem for providing a fluid seal over the shaped dressing bolster and a portion of the patient's epidermis, and a reduced-pressure subsystem for delivering a reduced pressure to the sealing subsystem. The reduced-pressure system may develop a force, which may include a vertical force that is realized at tissue site deeper than the epidermis or a closing force directed towards the incision. The shaped dressing bolster is shaped to evenly distribute the force. Other methods and systems are included.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: February 25, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Justin Alexander Long, Richard Marvin Kazala, Jr., Robert Peyton Wilkes, Eric Woodson Barta, Matthew Francis Cavanaugh, II, Larry Tab Randolph, Li Yao
  • Patent number: 10561768
    Abstract: Microstrain-inducing manifolds, systems, and methods are presented that involve microstrain-inducing manifolds that include a plurality of shaped projections for creating microstrain. The shaped projections may be tapered projections. A system may include a sealing member for placing over the tissue site, a microstrain-inducing manifold, and a reduced-pressure subsystem that delivers reduced pressure to the sealing member. The reduced pressure causes the shaped projections to create microstrain at the tissue site. Other methods, apparatuses, and systems are also presented.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: February 18, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Timothy Mark Robinson, Christopher Brian Locke, Aidan Marcus Tout
  • Patent number: 10549016
    Abstract: Embodiments of negative pressure wound therapy systems and methods for operating the systems are disclosed. In some embodiments, a system includes a pump assembly and a wound dressing configured to be positioned over a wound. The pump assembly and the wound dressing can be fluidically connected to facilitate delivery of negative pressure to a wound via a fluid flow path. The system can be configured to efficiently deliver negative pressure and to detect and indicate presence of conditions, such as a blockage in a fluid flow path. Monitoring of the conditions can be performed by detecting a level of activity of a pump of the pump assembly.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: February 4, 2020
    Assignee: Smith & Nephew, Inc.
    Inventors: Justin A. Bushko, William Joseph Jaecklein, Felix C. Quintanar, Christopher Karl Walter Rouseff
  • Patent number: 10532137
    Abstract: An apparatus and system for fluidly connecting a reduced-pressure source to a dressing and a method for manufacturing and using the same include a base having an aperture and a wall having a peripheral portion coupled to the base. The wall may form a cavity in fluid communication with the aperture. The apparatus also may include a conduit port fluidly coupled to the cavity and adapted to receive a conduit. The base may be adapted to couple to the dressing, and the wall may be adapted to collapse from a first position to a second position in response to a supply of reduced pressure from the reduced-pressure source.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: January 14, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Benjamin Andrew Pratt, Christopher Brian Locke
  • Patent number: 10456511
    Abstract: The device (10, 36, 38, 42, 68) applies a negative pressure to an endoluminal surface in the body of a patient to facilitate healing of a wound in the endoluminal surface. The device comprises a flexible porous element (14) with a peripheral outer face (32) for contact with the wound, the outer face being defined between opposite proximal and distal ends of the porous element. A suction tube (30) for being connected to a suction source externally of the patient's body is provided in fluid communication with the porous element to apply a negative pressure to the wound via the outer face (32) of the porous element (14) upon operation of the suction source. The porous element (14) has at least one through passageway (16) extending from its proximal end to its distal end for passage of bodily substances of the patient through the porous element.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: October 29, 2019
    Inventor: Daniel Eduard Kleiner
  • Patent number: 10426938
    Abstract: An adapter for providing fluid communication with a tissue site may include a base, a conduit housing, a primary port, at least one ancillary port, and at least one port extension. The base may define a mounting plane having a first planar side and a second planar side opposite the first planar side. The conduit housing may be supported by the base and may include a recessed region defining an entry surface. The conduit housing and the recessed region may be positioned on the first planar side with the entry surface facing the first planar side. The primary port may be on the entry surface, and the at least one ancillary port may be on the entry surface. A distal end of the port extension may be positioned on the second planar side in fluid communication with the ancillary port. Other devices, systems, and methods are disclosed.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: October 1, 2019
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Timothy Mark Robinson
  • Patent number: 10369259
    Abstract: There are provided devices for applying negative pressure to a wound in an endoluminal surface of a patient to facilitate healing of the wound and methods for use of the devices. The device (69, 94, 134, 140, 156, 164) comprises a flexible porous element with an outer face defined between opposite proximal and distal ends of the porous element. A suction tube (30) for being connected to a suction source externally of the patient's body is in fluid communication with the porous element (14) to apply the negative pressure to the wound via the outer face of the porous element. In some embodiments, the porous element has a longtitudinal passageway (16) for passage of bodily substances of the patient along the lumen defining the endoluminal surface through the porous element. In such embodiments, the device may also have at least one absorbent element (70, 80) for absorbing the bodily substances and which is disposed forwardly or rearwardly of the porous element (14).
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 6, 2019
    Inventor: Daniel Eduard Kleiner
  • Patent number: 10307517
    Abstract: 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.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: June 4, 2019
    Assignee: Smith & Nephew PLC
    Inventors: Julie Allen, Ben Alan Askem, Sarah Jenny Collinson, Richard Thomas Hughey, Derek Nicolini
  • Patent number: 10231875
    Abstract: A method and apparatus are disclosed for dressing a wound. The apparatus comprises an absorbent layer for absorbing 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.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: March 19, 2019
    Assignee: Smith & Nephew PLC
    Inventor: Edward Yerbury Hartwell
  • Patent number: 10182947
    Abstract: Disclosed herein is a device which is intended to deliver and maintain reduced pressure to body surfaces for application of reduced pressure wound therapy (RPWT) also known as negative pressure wound therapy (NPWT). During application of this type of therapy, a substantially airtight seal is formed around a section of tissue to be treated. This seal is formed by a dressing which provides fluid communication from a section of tissue to a reduced pressure source. Disclosed herein is a dressing system which is configured to enhance usability and functionality of this dressing. First, the system may be configured to allow full rotation of the fluid communication conduit to the reduced pressure source along the axis substantially normal to the dressing. Second, the system may be configured to include a one-way valve to prevent backflow of any drainage fluids. Third, the system may be configured with transparent windows covered by opaque flaps to allow inspection through the dressing.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: January 22, 2019
    Assignee: KCI Licensing, Inc.
    Inventors: Dean Hu, Kenton Fong, Moshe Pinto, Philip Hui, Kenneth Wu, Craig McGreevy, Evan Anderson
  • Patent number: 10149783
    Abstract: This invention provides an oral apparatus and method capable of alleviating or curing snore and obstructive sleep apnea by applying a negative pressure through a mini oral interface to the oral cavity. The mini oral interface creates a secure connection between the interface and mouth or teeth and prevents the interface from falling off. The oral interface also provides fixation between upper and lower lips (or tooth) and prevents opening of patient's mouth during sleeping. The negative pressure pulls the tongue toward upper palate and also pulls the soft palate forward as well. By moving the tongue and the soft palate in a forward direction, the patentcy of the upper airway near the pharynx is maintained to prevent sleep-disordered breathing. The negative pressure will pull the lips inward to close the mouth ad prevent air from entering the oral cavity from atmosphere.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: December 11, 2018
    Assignee: Somnics, Inc.
    Inventors: Chung-Chu Chen, Ching Shang, Marina Sirota, Zhen Yao
  • Patent number: 10123789
    Abstract: A variable compressible device is utilized with a vacuum to preferentially close a wound. At least one of a strengthening member which resists compression preferentially in one direction, more so than another direction, or a flute in a layer of the closure device whereby to facilitate preferentially compressing in a direction perpendicular to the flute is provided. When utilized with prior art wound closure techniques, a wound is preferentially pulled shut, in what is believed to be a better manner than prior art devices. Furthermore, the device may be utilized with different wound closure techniques.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: November 13, 2018
    Inventors: James Woodfin Kennedy, Donald Edgar Barker
  • Patent number: 10105473
    Abstract: Methods and apparatuses are disclosed for applying negative pressure to a wound site. In some embodiments, the apparatus comprises a source of negative pressure, a processing element, and a memory comprising instructions configured to, when executed on the processing element, cause the apparatus to attempt to generate, via the source of negative pressure, a desired negative pressure at the wound site. If the desired negative pressure has not been generated after a first predetermined period of time, the instructions cause the apparatus to: deactivate the source of negative pressure for a second predetermined period of time, and subsequently attempt to generate the desired negative pressure at the wound site.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: October 23, 2018
    Assignee: Smith & Nephew PLC
    Inventor: Derek Nicolini
  • Patent number: 10086117
    Abstract: Systems, methods, and dressings are presented that involve using a RFID device in a dressing to provide pressure data or other data to a remote base unit. The dressing is an interactive dressing. The reduced pressure in the dressing may be monitored and used to control delivery of reduced pressure. In one instance, the pressure data at each dressing allows a plurality of tissue sites to be monitored and used with as single remote base unit. In another instance, devices and methods for assuring a proper pairing of reduced-pressure dressings and remote base units are also presented. Other systems, methods, and dressings are presented.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: October 2, 2018
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Richard Daniel John Coulthard, Juan L. Gonzalez
  • Patent number: 10080850
    Abstract: An oxygen distributor (1) positionable, in use, in a wound for supplying oxygen to the wound has an oxygen delivery area (17) for, in use, receiving a supply of oxygen. At least one tube (19A) extends from the oxygen delivery area, having a tube wall with an oxygen-permeable, liquid-impermeable section. Oxygen delivered to the oxygen delivery area can flow away from the oxygen delivery area along the, or each, tube.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: September 25, 2018
    Assignee: Inotec AMD Limited
    Inventor: Melvin Frederick Vinton
  • Patent number: 10065740
    Abstract: A system includes a dry floor assembly that is configured to be located within an interior space. The dry floor assembly includes a vacuum layer. A vacuum system is coupled to the vacuum layer. The vacuum system is configured to remove liquid from the dry floor assembly via the vacuum layer.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: September 4, 2018
    Assignee: The Boeing Company
    Inventor: Jamie Childress
  • Patent number: 10039871
    Abstract: A breast pump system includes a flexible vinyl suction tube that connects a milk collection device to a vacuum pump. If a milk droplet accidentally backflows into the suction tube, a supplementary opening injects tiny volumes of air sequentially into the vacuum pump or into the suction tube near the pump. As the vacuum pump operates in a cyclical manner, the injected air returns the droplet in sequential steps back to the milk collection device.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: August 7, 2018
    Inventors: Ashia M. Pollen, Robert J. Harter
  • Patent number: 9999702
    Abstract: According to an illustrative embodiment a method to promote healing of a wound is provided comprising contacting the wound with a biologically active composition comprising a lipoic acid derivative and gelatin. In another embodiment a wound dressing is provided comprising a scaffold coated with a biologically active composition comprising a lipoic acid derivative. In a further embodiment, a system is provided for treating a tissue site of a patient, the system comprising a reduced-pressure source to supply reduced pressure, a manifold to distribute reduced pressure to a tissue site and a scaffold coated with a biologically active composition comprising a lipoic acid derivative. Methods for producing such a system and scaffold are also disclosed.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: June 19, 2018
    Assignee: KCI Licensing Inc.
    Inventors: Dmitry Zimnitsky, Jenny Finkbiner, Blane Sanders
  • Patent number: 9962474
    Abstract: Apparatus for the application of topical negative pressure therapy to a wound site is described, the apparatus comprising: a wound contacting element for retaining wound exudate fluid therein; a wound covering element that provides a substantially airtight seal over the wound contacting element and wound site; a vacuum connection tube connecting a wound cavity to a vacuum source; and a vacuum source connected to a distal end of the vacuum connection tube.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: May 8, 2018
    Assignee: Smith & Nephew PLC
    Inventor: Bryan Greener
  • Patent number: 9956121
    Abstract: A method and apparatus are disclosed for dressing a wound. The apparatus comprises an absorbent layer for absorbing 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.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: May 1, 2018
    Assignee: Smith & Nephew PLC
    Inventor: Edward Yerbury Hartwell
  • Patent number: RE48117
    Abstract: 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.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: July 28, 2020
    Assignee: Smith & Nephew, Inc.
    Inventors: Sean J. Albert, Ed Armstrong, Ken Beaudoin, Iain Michael Blackburn, Phil Bussone, Brendan Crawford, Robert Emmerson, Mike Ewaschuk, Stephen Gianelis, Andrew Goddard, Joseph Gordon, Mark Guarraia, Tim Johnson, Darwin Keith-Lucas, Andrew Linton, Dan Nelsen, Michael Salame, Tim Stern, Mark White