Perforated Patents (Class 602/47)
  • Patent number: 11389336
    Abstract: An absorbent structure including a distribution layer and a storage layer is disclosed. The distribution layer has two or more stratums. The two or more stratums include a body facing stratum and a subsequent stratum below the body facing stratum. The density of the subsequent stratum is a fraction of the density of the body facing stratum and the porosity of the subsequent stratum is a multiple of the body facing stratum porosity.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: July 19, 2022
    Assignee: The Procter & Gamble Company
    Inventors: Christopher Philip Bewick-Sonntag, Gerard A. Viens
  • Patent number: 11286361
    Abstract: Provided are a support with an antibacterial layer, which exhibits excellent followability with respect to a curved surface and in which peeling does not easily occur between a support and an antibacterial layer even though the support with an antibacterial layer is bonded to a curved surface, and a laminate including the support with an antibacterial layer. The support with an antibacterial layer of the present invention includes a support and an antibacterial layer disposed in at least a portion on the support, in which the support contains a urethane resin, and the antibacterial layer contains a hydrophilic polymer and an antibacterial agent.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: March 29, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Toshiyuki Katagiri, Norihiro Omae
  • Patent number: 11259966
    Abstract: A wound dressing for a burn or open wound is formed of a foam material body with an open center area. The thickness of the foam body creates a zone for air circulation and prevents contact with the wound. This may have a mesh, gauze or other air permeable cover over the open center area.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: March 1, 2022
    Inventors: Alexandria Bedford, James Doxtator
  • Patent number: 11160917
    Abstract: A barrier for use in negative pressure wound therapy can include a base layer and surface structures. The barrier can be used to reduce or prevent tissue ingrowth. A method of using a negative pressure wound therapy system can include positioning a perforated barrier in a wound. After positioning the perforated barrier in the wound, positioning a pad in the wound on top of the perforated barrier, positioning a seal on top of the wound to at least partially seal the perforated barrier and the foam in the wound, and applying negative pressure wound therapy to the wound.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: November 2, 2021
    Assignee: J&M Shuler Medical Inc.
    Inventor: Michael Simms Shuler
  • Patent number: 11123236
    Abstract: An absorbent article can include a bodyside liner, an outer cover, and an absorbent body disposed between the bodyside liner and the outer cover. The bodyside liner can be treated with a surfactant. A component of the absorbent article can be treated with a hydrophobically modified polymer. The hydrophobically modified polymer can be configured to interact with the surfactant upon wetting of the absorbent article when the surfactant and the hydrophobically modified polymer are in an aqueous solution to increase surface tension of the aqueous solution.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: September 21, 2021
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Vinod Chaudhary, Sarah Hartman
  • Patent number: 10994913
    Abstract: A support assembly for supporting a biological product (e.g., membrane) in an operative position. The support assembly has a base and a cover. A membrane receiving portion of the base defines a plurality of perforations that extend between top and bottom surfaces of the product receiving portion. The cover is releasably coupled to the base in a product-covering position in which the cover overlies the product receiving portion of the base. In the operative position, the biological product engages the top surface of the product receiving portion and the bottom surface of the cover.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: May 4, 2021
    Assignee: Osiris Therapeutics, Inc.
    Inventors: Yi Duan-Arnold, Alla Danilkovitch, Alexandra Gyurdieva, Jin-Qiang Kuang, Steven Michael Sinclair
  • Patent number: 10945747
    Abstract: The invention relates to a system for treating an epistaxis, comprising: a compressible body designed to come into contact with walls of a nasal cavity of a patient, or surrounded by a veil of hemostatic properties; an envelope designed to envelop the compressible body; and a compression device for compressing the compressible body in the envelope, said compression device being designed so as to compress or release the compressible body.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: March 16, 2021
    Inventor: Patrick Lestoquoy
  • Patent number: 10925774
    Abstract: A system for treating a tissue site includes a pressure source to apply reduced pressure, and a manifold in fluid communication with the pressure source to provide reduced pressure to the tissue site. The system includes a drape for adhering to the tissue site to cover the tissue site and the manifold. The drape has a film layer having a thickness less than about 15 microns, and an adhesive coupled to the film layer. The adhesive seals the film layer to the tissue site to create a sealed space having the manifold therein. The adhesive is sufficiently thick to limit leaks between the film layer and the tissue site.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: February 23, 2021
    Assignee: KCI Licensing, Inc.
    Inventors: Timothy Mark Robinson, Christopher Brian Locke
  • Patent number: 10893982
    Abstract: Wound treatment materials can have at least two perforated biomatrix layers which are interconnected. Methods for preparing such wound treatment materials include the application of adhesives. Treatment of exuding wounds, and vacuum-assisted wound treatment therapy, can be carried out with the wound treatment materials.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: January 19, 2021
    Assignee: MEDSKIN SOLUTIONS DR. SUWELACK AG
    Inventors: Martin Wieland, Antje Grill
  • Patent number: 10828203
    Abstract: The present invention relates to a wound pad comprising fibers and being provided with at least a first and a second discrete group of incisions, wherein each one of said discrete groups of incisions comprises at least a first and a second incision, wherein said first and said second incision extend from a common starting point to a respective end point, wherein the end point of said first incision is spaced from the end point of said second incision, wherein the common starting point of said first group of incisions is provided on a first side of an imaginary line extending in the machine direction of said fibrous wound pad, and the common starting point of said second group of incisions is provided on a second side of said imaginary line, and wherein a first incision of said first group of incisions and a second incision of said second group of incisions each cross said imaginary line. The present invention also relates to a self-adhesive member for adhering to and cover a portion of a user's skin.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: November 10, 2020
    Assignee: Mölnlycke Health Care AB
    Inventors: Sami Ahsani, Sandra Josefsson, Anna Svensby, Christoffer Sandberg
  • Patent number: 10729590
    Abstract: Dressings, systems, and methods are disclosed for treating tissue with reduced pressure. A dressing for distributing reduced pressure to a tissue site includes a plurality of liquid-impermeable layers that are stacked and a plurality of spacers disposed at least partially between adjacent liquid-impermeable layers. The plurality of liquid-impermeable layers are fenestrated at least in part. The plurality of spacers and plurality of liquid-impermeable layers form a plurality of flow paths for allowing fluid flow under reduced pressure. Adjacent layers of the plurality of liquid-impermeable layers are stacked without foam between at least a majority of coextensive surfaces. Other dressings, systems, and methods are disclosed.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: August 4, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Tyler H. Simmons, Alexander G. Sammons
  • Patent number: 10647891
    Abstract: Provided is a PSA sheet that has a high level of moisture resistance while maintaining good holding power with reduced gas emission. The PSA sheet provided by this invention comprises a moisture-impermeable layer and a PSA layer provided to one face of the moisture-impermeable layer. The PSA layer comprises a polymer A having a weight average molecular weight of 5×104 or higher as a base polymer and a polymer B having a number average molecular weight of 1000 or higher and a weight average molecular weight lower than 5×104.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 12, 2020
    Assignee: NITTO DENKO CORPORATION
    Inventors: Kenji Furuta, Akira Hirao, Tatsuya Suzuki
  • Patent number: 10632020
    Abstract: A system for treating a tissue site with negative-pressure is described. The system includes a manifold configured to be positioned adjacent to the tissue site and a drape configured to be positioned over the tissue site and the manifold to form a sealed space. The system also includes a negative-pressure source configured to provide negative-pressure to the sealed space. The drape includes a film layer, a layer of a bonding adhesive coupled to the film layer, and a mesh coupled to the layer of the bonding adhesive. The mesh includes a coating of a sealing adhesive and one or more bonding apertures. Methods of manufacturing the drape are also described.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: April 28, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Timothy Mark Robinson
  • Patent number: 10583044
    Abstract: A system for treating a tissue site with negative-pressure is described. The system includes a manifold configured to be positioned adjacent to the tissue site and a drape configured to be positioned over the tissue site and the manifold to form a sealed space. The system also includes a negative-pressure source configured to provide negative-pressure to the sealed space. The drape includes a film layer, a layer of a bonding adhesive coupled to the film layer, and a mesh coupled to the layer of the bonding adhesive. The mesh includes a coating of a sealing adhesive and one or more bonding apertures. Methods of manufacturing the drape are also described.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: March 10, 2020
    Assignee: KCI Licensing, Inc.
    Inventors: Christopher Brian Locke, Timothy Mark Robinson
  • Patent number: 10548776
    Abstract: Wound dressings suitable for negative pressure wound therapy are disclosed. The wound dressings may include a body of porous material, the body of porous material may include a plurality of cuts which provide regions of flexibility within the body. Also disclosed are methods of manufacturing and methods of using such wound dressings. In addition, such wound dressings can include a retaining mechanism removably coupled to the material and configured to retain the material in the expanded conformation.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: February 4, 2020
    Assignee: Smith & Nephew, Inc.
    Inventors: Bryan Greener, Allan Freedline
  • Patent number: 10265219
    Abstract: Appurtenances to a wound dressing and systems for monitoring wound dressings are described. In some embodiments, a system for monitoring a wound dressing includes: an appurtenance to a wound dressing, wherein the appurtenance includes a sensor unit, an electronic identifier, and a transmitter unit operably attached to the sensor unit and to the electronic identifier; and a local unit including a receiver for the transmitter unit, a processor operably attached to the receiver, and a communication unit operably attached to the processor.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: April 23, 2019
    Assignee: ELWHA LLC
    Inventors: Paul Duesterhoft, Nicholas Dykstra, Daniel Hawkins, Roderick A. Hyde, Jordin T. Kare, Eric C. Leuthardt, Elizabeth L. Schubert, Clarence T. Tegreene, Lowell L. Wood, Jr.
  • Patent number: 10245186
    Abstract: The illustrative systems, methods, and dressings for applying reduced pressure to a tissue site are presented that involve quickly removing fluids from the tissue site to reduce or avoid maceration of the epidermis. One dressing includes a dressing material for transferring the reduced pressure to the tissue site and a drape covering at least a portion of the dressing material. The dressing material includes a hydrophobic tissue-interface layer adapted to contact the tissue site. The dressing material also includes a manifold adapted to distribute reduced pressure. The manifold may be a hydrophobic layer. The dressing material also includes one or more absorbent layers adapted to absorb liquid from the tissue site via the tissue-interface layer and the manifold. Other aspects are disclosed.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: April 2, 2019
    Assignee: KCI Licensing, Inc.
    Inventor: Jonathan Scott Olson
  • Patent number: 10241260
    Abstract: Techniques are described for using confinement structures and/or pattern gratings to reduce or prevent the wicking of sealant polymer (e.g., glue) into the optically active areas of a multi-layered optical assembly. A multi-layered optical structure may include multiple layers of substrate imprinted with waveguide grating patterns. The multiple layers may be secured using an edge adhesive, such as a resin, epoxy, glue, and so forth. A confinement structure such as an edge pattern may be imprinted along the edge of each layer to control and confine the capillary flow of the edge adhesive and prevent the edge adhesive from wicking into the functional waveguide grating patterns of the layers. Moreover, the edge adhesive may be carbon doped or otherwise blackened to reduce the reflection of light off the edge back into the interior of the layer, thus improving the optical function of the assembly.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: March 26, 2019
    Assignee: Molecular Imprints, Inc.
    Inventors: Michael Nevin Miller, Frank Y. Xu, Vikramjit Singh, Eric C. Browy, Jason Schaefer, Robert D. TeKolste, Victor Kai Liu, Samarth Bhargava, Jeffrey Dean Schmulen, Brian T. Schowengerdt
  • Patent number: 10238828
    Abstract: Medical breathing tubes have a tubular body that defines a lumen extending between open terminal ends of the tubular body. An internal form is enclosed within the lumen and supportive of the tubular body. The internal form may be a coated encapsulated internal form where the coating secures the internal form to the tubular body. The internal form may provide for a series of alternative crests and troughs of the tubular body. A patient interface and/or a securement system may be attached to the tubular body.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: March 26, 2019
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Mark Thomas O'Connor, Jimmy Edward Eaton-Evans, Neil Gray Duthie, Brent Ian Laing, Steven Charles Korner, Laurence Gulliver, Puqing Zhang, Andrew Grant Niccol, Charles William Douglas Irving, Craig Karl White, Caroline Geraldine Hopkins, Michael Paul Ronayne, Callum James Thomas Spence
  • Patent number: 10226212
    Abstract: Appurtenances to cavity wound medical dressings are described. In some embodiments, an appurtenance to a cavity wound dressing includes: a substrate including at least one wound-facing surface, the wound-facing surface configured to be oriented facing a wound surface of a cavity wound; and a plurality of sensor units attached to the substrate, the plurality of sensor units oriented and positioned on the substrate relative to the wound surface of the cavity wound.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 12, 2019
    Assignee: ELWHA LLC
    Inventors: Paul Duesterhoft, Nicholas Dykstra, Daniel Hawkins, Roderick A. Hyde, Jordin T. Kare, Eric C. Leuthardt, Elizabeth L. Schubert, Clarence T. Tegreene, Lowell L. Wood, Jr.
  • Patent number: 10158928
    Abstract: Appurtenances to wound dressings are described, which include: a substrate configured to mechanically or chemically attach to a wound dressing; a transmission unit attached to a surface of the substrate, the transmission unit including circuitry and at least one antenna, the transmission unit configured to transmit a signal; and a projection operably attached to the transmission unit, the projection of a size and shape to extend into an interior region of the wound dressing and configured to sample a fluid associated with a wound.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: December 18, 2018
    Assignee: ELWHA LLC
    Inventors: Paul Duesterhoft, Nicholas Dykstra, Daniel Hawkins, Roderick A. Hyde, Jordin T. Kare, Eric C. Leuthardt, Elizabeth L. Schubert, Clarence T. Tegreene, Lowell L. Wood, Jr.
  • Patent number: 10130518
    Abstract: In some embodiments, an appurtenance to a wound dressing includes: a substrate with at least one surface of a size and shape to mate with a surface of a wound dressing; a plurality of projections attached to the substrate and positioned to secure the substrate to the wound dressing; one or more sensor units attached to the substrate, the one or more sensor units configured to sense a condition of the wound dressing; and a transmission unit attached to the substrate and operably coupled to the one or more sensor units, the transmission unit including circuitry configured to transmit information associated with the one or more sensor units.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: November 20, 2018
    Assignee: ELWHA LLC
    Inventors: Boyd D. Allin, Jared Drinkwater, Paul Duesterhoft, Nicholas Dykstra, Daniel Hawkins, Roderick A. Hyde, Jordin T. Kare, Eric C. Leuthardt, Levi M. Miller, Elizabeth L. Schubert, Clarence T. Tegreene, Lowell L. Wood, Jr.
  • Patent number: 10123908
    Abstract: The present invention relates to method of preparing an absorbent wound care device comprising an active agent on a wound contacting surface, such as e.g. a protein or an enzyme, by the use of electrospraying, and a wound care device obtained by said method. The invention further relates to a wound care device comprising Thrombin and a polyurethane foam, and a method of treating bleeding.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: November 13, 2018
    Assignee: Coloplast A/S
    Inventors: Hanne Everland, Kurt Osther, Jacob Vange, Lene Feldskov Nielsen
  • Patent number: 9782512
    Abstract: The invention relates to a wound dressing which is particularly suitable for therapeutically dressing wounds. Said wound dressing consists of a multi-layered structure comprising at least one layer containing at least one hydrocolloid, preferably collagen, (“hydrocolloid layer” or “collagen layer”) and at least one layer containing an activated carbon (“activated carbon layer”).
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: October 10, 2017
    Assignee: Blücher GmbH
    Inventors: Hasso von Blücher, Raik Schönfeld, Frank Pallaske
  • Patent number: 9731064
    Abstract: An interface device for removing fluid from a surgical site by shaping the interface device in situ to place a set of openings, which are in fluid communication with a connection port adapted for connection to a vacuum source, in contact with at least a portion of the surgical site. This interface device having a connection port with a connection opening for connection to a vacuum source; a multiplicity of openings located on an exterior of the interface device and in fluid communication through the interface device to the connection port so that fluid may be drawn into the openings and removed by vacuum; and the interface device is adapted to allow a set of one or more hands to at least partially conform the interface device to at least a portion of the surgical site to place at least some of the multiplicity of openings in proximity to fluid.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: August 15, 2017
    Assignee: INSTITUTO TECHNOLOGICO Y DE ESTUDIOS SUPERIORES DE MONTERREY
    Inventors: Gabriela Maria Ruiz Soto, Jose Isabel Gomez Quinones, Manuel Farias Martinez, Enrique Javier Saldivar Ornelas, Elena Isabel Victoria Quijano Dominguez
  • Patent number: 9615976
    Abstract: A method for closing a puncture wound on skin. The method including: adhering a first surface of a first member having an unrestrained shape to the skin and over the puncture; and subsequent to the adhering, removing a second member for restraining the first member in a restrained shape from the first member. Where at least a normal force is applied to the puncture wound due to the removal of the second member from the first member which causes the first member to change towards the unrestrained shape. The removing can further cause a force substantially perpendicular to the normal force which tends to close the puncture wound.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: April 11, 2017
    Assignee: OMNITEK PARTNERS LLC
    Inventors: Thomas Spinelli, Jahangir S Rastegar
  • Patent number: 9585793
    Abstract: An improved skin substitute is presented comprised of a silicone layer backed up with a woven nylon fabric layer, the silicone layer possessing a regular pattern of slits that permit the porosity of the skin substitute to be adjusted by clinicians by means of applying tension to the skin substitute that differentially opens the slits. A variety of therapeutic substances can be applied to the skin substitute to promote healing, including aloe and other medicinal preparations. A layer of water soluble or water insoluble anti-scar compound is also present, the preferred compound being salinomycin.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: March 7, 2017
    Inventors: E. Aubrey Woodroof, Richard R. Phipps
  • Patent number: 9481771
    Abstract: There is provided a method for bonding together hydrogels by interposing a polyalkylene glycol between the gel surfaces to be bonded together of hydrogels. A method for bonding together hydrogels of the same type or different types, the method including: interposing a polyalkylene glycol between gel surfaces to be bonded together of the hydrogels and joining together the gel surfaces.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: November 1, 2016
    Assignees: RIKEN, NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Shingo Tamesue, Yasuhiro Ishida, Masataka Ohtani, Takuzo Aida, Yoshihiro Kudo, Taichi Nakazawa
  • Patent number: 9460641
    Abstract: The invention provides for a medical wrist band, specifically for infants and babies, which is economical to manufacture, durable, easy on the skin, does not cause allergic reactions and cannot be removed and reapplied without being damaged.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: October 4, 2016
    Assignee: Brenmoor Limited
    Inventors: Paul Brennan, Michael Moorhouse
  • Patent number: 9452247
    Abstract: The invention refers to a device for the negative pressure wound therapy comprising a cover material for the air-tight sealing of the wound and the wound surroundings; a means suitable for the generation of a negative pressure in the wound area, preferably a means for the functional connection of the wound area with a negative pressure source outside of the cover material in such a way that a negative pressure can be generated in the wound area and fluids can be drawn out of the wound area by suction; and a wound dressing, whereby the wound dressing contains an open-cell foam on the basis of a cross-linked polyorganosiloxane. The invention also refers to the use of open-cell foam on the basis of a cross-linked polyorganosiloxane for use in the negative pressure wound therapy, in particular in patients with a BMI of less than 18.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: September 27, 2016
    Assignee: Paul Hartmann AG
    Inventors: Pierre Croizat, Axel Eckstein, Ulrich Fink
  • Patent number: 9452088
    Abstract: A wound dressing provides a tenacious occlusive seal against the skin of a wearer, even in the presence of excessive blood or heavy perspiration. The preferred embodiment combines an adhesive backing layer with a hydrogel island providing superior hydrophilic gel adhesion. The product performs under extreme temperatures (i.e., 32-140° F.), and may be used to hold other dressings in place. The preferred embodiments are entirely translucent, and include a large pull-tab for easy removal. Two dressings may be packaged in a pliable re-sealable protective pouch, thereby forming a portable “kit.” Different “vented” embodiments are disclosed. A preferred structure includes a cover layer peripherally bonded to backing and hydrogel layers having a central aperture therethrough. The cover layer has one or more vent holes, and pressure is released through the central aperture and out the vent hole(s).
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: September 27, 2016
    Assignee: Medical Devices, Inc.
    Inventors: Stephen Shulman, Stuart Shulman, Jahan Azziz
  • Patent number: 9403953
    Abstract: This invention relates to a cosmetic sponge and a method of providing a cosmetic sponge incorporating a non-denatured collagen and other additives for skin care, cleaning, and cosmetic application.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: August 2, 2016
    Assignee: Diversified Global Technologies, LLC
    Inventor: Wayne Celia
  • Patent number: 9387127
    Abstract: A device for the protection of skin lesions of various kinds, in particular lesions following biopsy interventions, comprising: a first sheet having a central opening; a spacing element on the first sheet, made of a non-rigid material soaked with substances having bacteriostatic, bactericidal, germicidal or fungicidal activity, and having a central opening of smaller size than the central opening in the first sheet, and the center of which is essentially coincident with the center of the opening in the first sheet, so that part of the spacing element comes into contact with the skin in an area surrounding the lesion; and a second sheet, made with a material having micro-porosity preferably lower than 0.5 ?m, placed over the spacing element so as to close the top of the central opening in said spacing element and to form, when the device is in contact with the skin, a closed chamber.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: July 12, 2016
    Inventors: Josek Berek Apolet, Jonathan Byron, Ofer Spottheim
  • Patent number: 9237969
    Abstract: A wound barrier pad is provided having a housing with a housing opening. The housing has a truncated conical shape. A base plate with an opening is disposed in the housing, and the housing is filled with a fluid or padding. The wound barrier pad may also be embodied to have a cylindrical shape, a rectangular shape or other shape. The wound barrier pad may be incorporated into a garment. In another embodiment the wound barrier pad includes a ring and an adhesive such that the wound barrier pad may be directly adhered to the patient, thus eliminating the need for the garment. In another embodiment there is a wound barrier device having a pad assembly and an anti-shear member. The anti-shear member reduces frictional forces on the skin of a patient.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: January 19, 2016
    Inventor: Matthew D. Antalek
  • Patent number: 9174043
    Abstract: According to an embodiment of the present disclosure, a wound dressing system is presented. The wound dressing system includes a fluid permeable support layer, the support layer configured for positioning within a wound and adapted to generally conform to a topography of the wound, and to permit exudates from the wound to pass therethrough. The wound dressing system further includes a plurality of beads supported by the support layer, the beads defining an insulated inter-connected elongate member and an electrode embedded within and extending through at least a portion of the elongate member. Also, a current is generated by an external energy source that electrically flows through the electrode.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: November 3, 2015
    Assignee: Covidien LP
    Inventor: Arnaz Malhi
  • Patent number: 9149395
    Abstract: A liner for incontinence includes a skin contact side sheet, a non-skin contact side sheet, and an absorbent body arranged between these sheets and including an absorbent material. The absorbent material includes 30 to 70 mass % of SAP. The liner includes a main body and wings in an intermediate region of the main body. An SAP basis weight in the intermediate region is larger than in front and rear regions of the main body. The main body includes a front compressed region which is positioned between the intermediate region and the front region immediately in front of a urinating position (UP) of a wearer when worn, side compressed regions which extend from the intermediate region to the front region and rear region, respectively, and a rear compressed region which extends in the rear region in substantially the width direction. At the compressed regions, the absorbent body is continuous.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: October 6, 2015
    Assignee: UNICHARM CORPORATION
    Inventor: Yusuke Kawakami
  • Patent number: 9017405
    Abstract: An improved skin substitute is presented comprised of a silicone layer backed up with a woven nylon fabric layer, the silicone layer possessing a regular pattern of slits that permit the porosity of the skin substitute to be adjusted by clinicians by means of applying tension to the skin substitute that differentially opens the slits. A variety of therapeutic substances can be applied to the skin substitute to promote healing, including aloe and other medicinal preparations.
    Type: Grant
    Filed: May 19, 2013
    Date of Patent: April 28, 2015
    Inventor: E. Aubrey Woodroof
  • Patent number: 9012714
    Abstract: A wound treatment device comprises a wound surface contacting plug and a cover for covering the wound surface and the plug, wherein said plug consists of a flat textile isolating material comprising at least one first surface layer, one second surface layer and one intermediate space arranged between said surface layers. At least the first surface layer is provided with a biocompatible surface and a structure which enables a liquid to pass and prevents a wound tissue from growing in said structure. The intermediate space is provided with isolating threads elastically holding the first surface layer and the second surface layer at a certain distance from each other.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: April 21, 2015
    Inventor: Wilhelm Fleischmann
  • Patent number: 8926574
    Abstract: The present invention relates to a bandage for use in negative-pressure wound therapy, more particularly for wounds in the abdominal region, comprising a flexible film as a wound contact layer and at least one conduit applied to the film, wherein the conduit communicates with the wound space through openings in the conduit and in the film.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: January 6, 2015
    Assignee: Paul Hartmann AG
    Inventors: Pierre Croizat, Axel Eckstein, Ulrich Fink, Jürgen Hofstetter
  • Publication number: 20140323940
    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: Application
    Filed: July 8, 2014
    Publication date: October 30, 2014
    Inventors: Michael Manwaring, Robert Peyton Wilkes, Braden King-Fung Leung
  • Patent number: 8853486
    Abstract: Embodiments of the invention relate to a wound covering having a first strip-like element forming a first periphery and a second strip-like element that faces away from the first periphery, runs approximately parallel thereto, forming a second periphery, and is joined to the first strip-like element, there being formed between the first inner periphery of the strip-like element, facing away from the first periphery, and a second inner periphery of the second strip-like element, facing away from the second periphery, a drainage chamber, the depth of which in a depth direction extending at right angles to the periphery ensures a capillary action on bodily fluids received in the drainage chamber, in particular exudates.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: October 7, 2014
    Assignee: Lohmann & Rauscher GmbH
    Inventors: Thomas Wild, Georg Wagner, Christian Rohrer, Erik Steinlechner
  • Patent number: 8846076
    Abstract: A hemostatic device for promoting the clotting of blood includes a gauze substrate, a clay material disposed on the gauze substrate, and also a polyol such as glycerol or the like disposed on the gauze substrate to bind the clay material. When the device is used to treat a bleeding wound, at least a portion of the clay material comes into contact with blood emanating from the wound to cause the clotting. A bandage that can be applied to a bleeding wound to promote the clotting of blood includes a flexible substrate and a gauze substrate mounted thereon. The gauze substrate includes a clay material and a polyol. A hemostatic sponge also includes a gauze substrate and a dispersion of hemostatic material and a polyol on a first surface of the substrate.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: September 30, 2014
    Inventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
  • Patent number: 8784876
    Abstract: A device for promoting the clotting of blood comprises a clay material in particle form and a receptacle for containing the clay material. At least a portion of the receptacle is defined by a mesh. Another device comprises a gauze substrate and a clay material disposed on the gauze substrate. Another device is a bandage comprising a substrate, a mesh mounted on the substrate, and particles of a clay material retained in the mesh. A hemostatic sponge comprises a substrate, a hemostatic material disposed on a first surface of the substrate, and a release agent disposed on a second surface of the substrate. The release agent is disposed on the wound-contacting surface of the substrate. When treating a bleeding wound, application of the hemostatic sponge causes at least a portion of the hemostatic material to come into contact with blood through the release agent and through the substrate.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: July 22, 2014
    Assignee: Z-Medica, LLC
    Inventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
  • Publication number: 20140163447
    Abstract: The present invention relates to wound treatment material comprising at least two perforated biomatrix layers interconnected by connecting means, as well as to methods for preparing such wound treatment materials and their use, in particular in the treatment of exuding wounds, and in the vacuum-assisted wound treatment therapy.
    Type: Application
    Filed: July 11, 2012
    Publication date: June 12, 2014
    Applicant: MEDSKIN SOLUTIONS DR. SUWELACK AG
    Inventors: Martin Wieland, Antje Grill
  • Patent number: 8722961
    Abstract: A hyperbaric dressing has a fluid impermeable sheet and a fluid permeable layer with a sheet of porous material positioned between these two layers with passageways to permit fluid to flow out of the dressing.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: May 13, 2014
    Assignee: Inotec and Limited
    Inventors: Melvin Frederick Vinton, Allan Hurst, Derek Fray
  • Patent number: 8710290
    Abstract: A therapeutic device for promoting the healing of a wound in a mammal is disclosed. An exemplary device comprises a permeable structure having a plurality of depressions formed in a surface thereof. In use, the surface having the depressions is disposed adjacent a surface of the wound. A method of manufacturing a therapeutic device for promoting the healing of a wound in a mammal comprising the steps of providing a permeable substrate, and forming a plurality of depressions into a surface of the permeable substrate to provide the therapeutic device. A method of treating a wound comprises: providing a permeable structure comprising a plurality of randomly disposed fibers and having i) a plurality of wound surface contact elements disposed between end portions of the structure, and ii) a plurality of voids defined by the contact elements; and applying the permeable structure to at least one surface of the wound.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: April 29, 2014
    Assignee: Boehringer Technologies, L.P.
    Inventors: John R. Boehringer, John Karpowicz, Amitabha Mitra, Christopher L. Radl
  • Patent number: 8680360
    Abstract: A wound dressing, a method of manufacturing a wound dressing, and in particular to a material for use as and in a wound dressing. A wound dressing can comprise a material movable between an initial conformation and an expanded conformation resulting from applying an extensive force to the material, such that removal of the extensive force can cause a contraction of the material toward a center of a wound. In addition, the wound dressing can comprise a retaining mechanism removably coupled to the material and configured to retain the material in the expanded conformation.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: March 25, 2014
    Assignee: Smith & Nephew Inc.
    Inventors: Bryan Greener, Allan Freedline
  • Patent number: 8664464
    Abstract: The invention provides wound dressings comprising an absorbent (porous) hydrogel composition comprising a foam portion which comprises a flexible plasticized hydrophilic polymer matrix having an internal cellular structure, and a continuous portion which comprises a flexible plasticized hydrophilic polymer matrix having relatively continuous internal structure. The continuous portion of the hydrogel composition includes apertures providing fluid flow communication through the continuous portion between an external surface of the continuous portion and the foam portion whereby the foam portion can take up external water or other fluid into the cellular structure through the apertures of the continuous portion. The continuous portion of the hydrogel composition may be tacky to the skin, allowing its use as a bioadhesive.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: March 4, 2014
    Assignee: Systagenix Wound Management (US), Inc.
    Inventors: Hugh S. Munro, Derek Silcock, Simon W. Bayliff, Richard Hoskins, Susana S. Garcia, Helen Burgess, Justin Barnes
  • Publication number: 20140058309
    Abstract: A method of making a wound dressing comprising the steps of: providing an apertured substrate layer; coating the substrate layer with a fluid silicone prepolymer composition; thermally partially curing said silicone prepolymer composition to form a partially cured silicone coating on the substrate; laminating the coated substrate layer to a base layer to form a laminate having said partially cured silicone coating in contact with a surface of the base layer; followed by exposing the laminate to ionizing radiation, to further cure the partially cured silicone coating and to bond the silicone coating to said surface of the base layer. The radiation cure results in strong bonding between the siliconized substrate and incompatible base layers such as polyurethane foams. Also provided are wound dressings obtainable by the process of the invention.
    Type: Application
    Filed: January 31, 2012
    Publication date: February 27, 2014
    Inventors: Deborah Addison, Sally Stephens, Patrick Joseph Brosnan
  • Patent number: RE48007
    Abstract: A wound dressing provides a tenacious occlusive seal against the skin of a wearer, even in the presence of excessive blood or heavy perspiration. The preferred embodiment combines an adhesive backing layer with a hydrogel island providing superior hydrophilic gel adhesion. The product performs under extreme temperatures (i.e., 32-140° F.), and may be used to hold other dressings in place. The preferred embodiments are entirely translucent, and include a large pull-tab for easy removal. Two dressings may be packaged in a pliable re-sealable protective pouch, thereby forming a portable “kit.” Different “vented” embodiments are disclosed. A preferred structure includes a cover layer peripherally bonded to backing and hydrogel layers having a central aperture therethrough. The cover layer has one or more vent holes, and pressure is released through the central aperture and out the vent hole(s).
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: May 26, 2020
    Assignee: Medical Devices, Inc.
    Inventors: Stephen Shulman, Stuart Shulman, Jahan Azziz