Nonwoven Fiber Pattern Patents (Class 602/45)
  • Publication number: 20120294927
    Abstract: The invention relates to a sterile wound dressing having a backing and a nonabsorbent elastomer wound contact layer, wherein the elastomer matrix is formed by a synthetic three-block elastomer, preferably a copolymer of polystyrene block and polyolefin block (SEPS, SEBS, SEEPS, etc.) or mixtures thereof, wherein the total polymer content is less than 3.2 wt %, in particular 3.0 wt % or less, preferably 2.6 wt % or less, and is plasticized by an apolar oil and/or petroleum jelly.
    Type: Application
    Filed: May 16, 2012
    Publication date: November 22, 2012
    Applicant: Lohmann & Rauscher GmbH & Co. KG
    Inventor: MARIUS-THOMAS GORKA
  • Patent number: 8299316
    Abstract: A hemostatic device comprising (i) a carrier comprising at least one component selected from the group consisting of hydroxypropyl methylcellulose phthalate, hydroxypropyl methylcellulose acetate succinate, cellulose acetate phthalate; polyvinylacetate phthalate, cellulose acetate phthalate, acetaldehyde dimethylcellulose acetate, polymethacrylate-based polymers, and derivatives, salts, copolymers or combinations thereof; and (ii) thrombin.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: October 30, 2012
    Assignee: Ethicon, Inc.
    Inventors: Robert W. Van Holten, Jagdishchandra C. Patel, Stephen C. Yeadon
  • Publication number: 20120270111
    Abstract: Polyolefin woven and nonwoven fibers, filaments and fabrics made therefrom which comprise a melt blend which comprises (a) a polyolefin; and (b) at least one compound of the formula (I) R1-(hydrophilic oligomer) ??(I) wherein R1 is a straight or branched chain alkyl of 22 to 40 carbon atoms and the hydrophilic oligomer is a homo- or co-oligomer consisting of monomer units derived from monomers selected from the group consisting of ethylene oxide, propylene oxide, ethylene glycol, propylene glycol, epichlorhydrin, acrylic acid, methacrylic acid, ethylene imine, caprolactone, vinyl alcohol and vinyl acetate; and wherein the hydrophilic oligomer consists of between 2 and 10 monomer units, exhibit excellent durable wettability. The fabrics are useful in disposable diapers, training pants, feminine napkins, tampons, incontinence care products, wet and dry wipes, wound dressings, surgical capes, filter medial, battery separators and the like.
    Type: Application
    Filed: June 14, 2012
    Publication date: October 25, 2012
    Applicant: TECHMER PM, LLC
    Inventors: Sheng-Shing Li, Andrew J. Leggio, George H. Menzie, David Devore, John J. McNamara, TaHau Yu, Douglas W. Horsey
  • Patent number: 8273369
    Abstract: The present invention is directed to a reinforced absorbable hemostat comprising at least one hemostatic agent in a single layer of nonwoven synthetic fabric having a mixture of compressed fiber staples of a polyglycolide/polylactide copolymer and a polydioxanone.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: September 25, 2012
    Assignee: Ethicon, Inc.
    Inventors: Olajompo Moloye-Olabisi, Dhanuraj S. Shetty, Robert W. Van Holten, Degang Zhong
  • Patent number: 8263115
    Abstract: A ring-shaped toe-patch is provided for treatment and prevention of tinea pedis, commonly known as athlete's foot. The toe-patches are made of rubber-foam, attached to a hydrophobic material for elimination of fungus like T. rubrum. The toe-patch has cuts extending into the patch from the central circle in the toe-patch. Due to its perfect fit the toe-patch comes close to the affected area making it possible for a hydrophobic material attached to foam to effectively bind the fungi. Simultaneously with the elimination of the fungi the toe-patch works as a toe separator creating space between the toes.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: September 11, 2012
    Assignee: Abigo Medical AB
    Inventors: Jan G. Smith, Mattias Andrup
  • Patent number: 8257732
    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: May 25, 2011
    Date of Patent: September 4, 2012
    Assignee: Z-Medica Corporation
    Inventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
  • Patent number: 8257731
    Abstract: An apparatus for promoting the clotting of blood and controlling bleeding comprises a receptacle for retaining molecular sieve material in particulate form therein. A pad for controlling bleeding comprises a mesh structure and a rigid or semi-rigid support attached to the mesh structure to facilitate the application of pressure to the pad and the wound. A bandage applicable to a bleeding wound comprises a mesh structure and a flexible substrate attached to the mesh structure, the substrate being a cloth or plastic member that may be adhesively attached to cover a wound. In any embodiment, at least a portion of the receptacle or mesh structure is defined by a mesh having openings therein, and at least a portion of the particulate molecular sieve material is in direct contact with blood.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: September 4, 2012
    Assignee: Z-Medica Corporation
    Inventors: Jeffry Horn, Raymond Huey
  • Patent number: 8252318
    Abstract: An apparatus for promoting the clotting of blood and controlling bleeding comprises a receptacle for retaining blood clotting material in particulate form therein. A pad for controlling bleeding comprises a mesh structure and a support attached to the mesh structure to facilitate the application of pressure to the pad and the wound. A bandage applicable to a bleeding wound comprises a mesh structure and a flexible substrate attached to the mesh structure, the substrate being a cloth or plastic member that may be adhesively attachable to cover a wound. In any embodiment, at least a portion of the receptacle or mesh structure is defined by a mesh having openings therein, and at least a portion of the particulate blood clotting material is in direct contact with blood. The mesh may include a zeolite powder impregnated or otherwise incorporated therein.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: August 28, 2012
    Assignee: Z-Medica Corporation
    Inventors: Raymond J. Huey, Jeffrey L. Horn
  • Publication number: 20120215148
    Abstract: The invention relates to functional spunbonded fabrics incorporating fibers made from non-fusible polymers containing one or more functional additives. The fibers are interwoven and interlocked to form a firm fleece composite, have different lengths, and have aspect ratios above 1,000. The fibers have a mean diameter of 0.1 to 500 micrometres and diameter variations within a fiber and/or among each other of at least 30%. The fibers contain more than 40 wt % of finely distributed functional additives in solid and/or liquid form. The spunbonded fabric is produced from a spinning solution containing the non-fusible polymer dissolved in a direct solvent and at least one functional additive. The spinning solution is extruded out of a spinneret, and the resulting strands are drawn in the longitudinal direction to form filaments or fibers, stabilized and laid down to form a fleece fabric. Exemplary spunbonded fabrics include clothing, technical textiles and filters.
    Type: Application
    Filed: September 13, 2011
    Publication date: August 23, 2012
    Inventors: Yvonne Ewert, Frank-Günter Niemz, Marcus Krieg, Bernd Riedel
  • Publication number: 20120203145
    Abstract: Provided are articles for use in wound treatment. The article is colored in a chosen color. The chosen color is green, and has in dry state the following mean values: a lightness factor L* along the black-white axis of between 20-55 according to Test Method T-397, a chromatic coordinate a* along the red-green axis of between ?45 to ?20 according to Test Method T-397, and a chromatic coordinate b* along the yellow-blue axis of between ?4.0 to ?1.0 according to Test Method T-397. The article can be used as a wound filler in an apparatus for treating a wound with negative pressure.
    Type: Application
    Filed: October 20, 2010
    Publication date: August 9, 2012
    Applicant: Molnlycke Health Care AB
    Inventor: Carianne Nilsson
  • Patent number: 8237010
    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: August 30, 2011
    Date of Patent: August 7, 2012
    Assignee: Boehringer Technologies, L.P.
    Inventors: John R. Boehringer, John Karpowicz, Christopher L. Radl
  • Publication number: 20120172776
    Abstract: The present invention is directed to a hemostatic textile, comprising: a material comprising a combination of glass fibers and one or more secondary fibers selected from the group consisting of silk fibers; ceramic fibers; raw or regenerated bamboo fibers; cotton fibers; rayon fibers; linen fibers; ramie fibers; jute fibers; sisal fibers; flax fibers; soybean fibers; corn fibers; hemp fibers; lyocel fibers; wool; lactide and/or glycolide polymers; lactide/glycolide copolymers; silicate fibers; polyamide fibers; feldspar fibers; zeolite fibers, zeolite-containing fibers, acetate fibers; and combinations thereof; the hemostatic textile capable of activating hemostatic systems in the body when applied to a wound. Additional cofactors such as thrombin and hemostatic agents such as RL platelets, RL blood cells; fibrin, fibrinogen, and combinations thereof may also be incorporated into the textile. The invention is also directed to methods of producing the textile, and methods of using the textile to stop bleeding.
    Type: Application
    Filed: March 2, 2012
    Publication date: July 5, 2012
    Applicants: Entegrion, Inc., The University of North Carolina at Chapel Hill
    Inventors: Thomas H. Fischer, E. Stan Eskridge, JR., William M. Malloy, JR., Malloy Evans
  • Patent number: 8202532
    Abstract: Disclosed are device for promoting the clotting of blood comprising a clay material and a release agent. In some embodiments, the clay material is disposed within a substrate and the release agent is disposed within a mesh. The release agent can be configured to make direct contact with a bleeding wound when the device is in particle form and the clay material can promote hemostasis.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: June 19, 2012
    Assignee: Z-Medica Corporation
    Inventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
  • Publication number: 20120095380
    Abstract: A wound dressing with a wound pad and a layer of vapour-permeable material arranged on top of the wound pad and extending peripherally outside the wound pad is described, wherein at least that part of the vapour-permeable layer extending peripherally outside the wound pad is coated with adhesive, and wherein the wound pad includes a liquid-retaining and liquid-transporting layer, and an upper distributing layer and lower distributing layer which bear against the top and underside, respectively, of the liquid-retaining and liquid-transporting layer.
    Type: Application
    Filed: May 11, 2010
    Publication date: April 19, 2012
    Applicant: MOLNLYCKE HEALTH CARE AB
    Inventors: Ann-Britt Gergely, Bengt Netsner, Anders Dahlberg, Eva-Karin Daun
  • Patent number: 8158845
    Abstract: A wound dressing comprises in combination (i) a first wound contact layer which preferably has a positive effect on the healing of the wound, and (ii) a second layer of greater hydrophilicity than the first layer.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: April 17, 2012
    Assignee: Advanced Medical Solutions Limited
    Inventors: Yimin Qin, Denis Keith Gilding
  • Patent number: 8158844
    Abstract: A reduced-pressure treatment system for applying reduced pressure to a tissue site at a limited-access location on a patient includes a reduced-pressure source, a treatment manifold for placing proximate the tissue site and operable to distribute reduced pressure to the tissue site, and a sealing member for placing over the tissue site and operable to form a pneumatic seal over the tissue site. The reduced-pressure treatment system also includes a reduced-pressure bridge and a moisture-removing device on at least portion of the reduced-pressure bridge. The reduced-pressure bridge includes a delivery manifold operable to transfer the reduced pressure to the treatment manifold, an encapsulating envelope at least partially enclosing the delivery manifold and having a patient-facing side, and a reduced-pressure-interface site formed proximate one end of the reduced-pressure bridge.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: April 17, 2012
    Assignee: KCI Licensing, Inc.
    Inventor: Bruce McNeil
  • Patent number: 8114433
    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: October 19, 2009
    Date of Patent: February 14, 2012
    Assignee: Z-Medica Corporation
    Inventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
  • Publication number: 20110275971
    Abstract: There is provided a protective media and a method of manufacturing the same. Also provided is a wound dressing, clothing and liners incorporating the protective media and methods of manufacturing the same. In one aspect, the protective media includes a porous dielectric carrier, an active agent incorporated in the porous dielectric carrier, and an electrostatic charge across at least a portion of the porous dielectric carrier. This innovative media is capable of eradicating microorganisms and/or toxins more efficiently than prior art solutions and can also self-sterilize.
    Type: Application
    Filed: June 6, 2011
    Publication date: November 10, 2011
    Inventor: Pierre Jean Messier
  • Patent number: 8022266
    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 treating a wound comprises the steps of 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: May 20, 2009
    Date of Patent: September 20, 2011
    Assignee: Boehringer Technologies, L.P.
    Inventors: John R. Boehringer, John Karpowicz, Amitabha Mitra, Christopher L. Radl
  • Publication number: 20110208101
    Abstract: This disclosure relates to a compression dressing designed to provide moisture transport properties to a contact surface and compression therapy for patients with swelling due to various medical conditions. The compression dressing is minimally comprised of at least one layer of moisture transport fabric comprised of elastic fiber that exhibits a sufficient amount of elasticity to apply a compressive force to a body part when applied thereto. The compression dressing further provides one-way, active fluid management which can move fluid away from the skin. The compression dressing may also include at least one absorptive reservoir layer that is applied to the outer surface of the moisture transport fabric. This absorptive reservoir layer may be removed as needed without substantially disrupting the compressive force applied to a body part. The method for using the compression dressing to manage fluid movement and edema is also provided.
    Type: Application
    Filed: February 18, 2011
    Publication date: August 25, 2011
    Inventors: Keith A. Keller, Robert M. MacMeccan, Le Zhang, Thomas A. Canada
  • Publication number: 20110183712
    Abstract: The invention relates to a medical product having a carrier layer, wherein one of the two sides of the carrier layer forming the surface forms an outer side of the medical product, wherein a code is permanently applied to the side forming the outer side wherein the code is a two-dimensional matrix code indicating a uniform source indicator of an internet site comprising application-specific and/or technical data about the medical product. The invention further relates to a set comprising at least one medical product, particularly present in a package, and a decoding device for decoding the identification code and for producing the connection to the internet site, and to the use of the code.
    Type: Application
    Filed: April 8, 2011
    Publication date: July 28, 2011
    Applicant: Paul Hartmann Aktiengesellschaft
    Inventors: Axel Eckstein, Juergen Hofstetter
  • Publication number: 20110172580
    Abstract: A wound care dressing comprising one or more nonwoven blankets, where each nonwoven blanket comprises a plurality of fibers, where each of the plurality of fibers are formed from one or more saccharides in optional combination with one or more medicaments.
    Type: Application
    Filed: March 28, 2011
    Publication date: July 14, 2011
    Inventor: DAVID M. DIXON
  • Patent number: 7968114
    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: October 30, 2006
    Date of Patent: June 28, 2011
    Assignee: Z-Medica Corporation
    Inventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
  • Publication number: 20110077571
    Abstract: The present invention relates to a wound dressing including a first wound pad and a first cover layer covering the first wound pad and extending beyond the first wound pad around the circumference thereof. According to the invention a second wound pad is disposed outside the first cover layer and enclosed in a second cover layer. Furthermore, the first and second wound pads are connected to each other by liquid transferring means.
    Type: Application
    Filed: May 18, 2009
    Publication date: March 31, 2011
    Applicant: MOLNLYCKE HEALTH CARE AB
    Inventor: Angelica Andresen
  • Patent number: 7888545
    Abstract: The present invention relates to a self-adhesive dressing comprising a layer (1) of spunlace nonwoven material and attached thereto a layer (2) of adhesive. In accordance with the invention, the dressing is stretchable in a first direction (MD) corresponding to the machine direction of the nonwoven material and in a second direction (CD) perpendicular to the first direction, in conjunction with which the resistance to stretching is less than 10 N/25 mm in both the first (MD) and the second (CD) directions in the case of stretching of less than or equal to 5%.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: February 15, 2011
    Assignee: Mölnlycke Heath Care AB
    Inventor: Tomas Fabo
  • Patent number: 7884258
    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 treating a wound comprises the steps of 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: November 5, 2004
    Date of Patent: February 8, 2011
    Assignee: Boehringer Technologies, L.P.
    Inventors: John R. Boehringer, John Karpowicz, Amitabha Mitra, Christopher L. Radl
  • Publication number: 20100312159
    Abstract: Under one aspect, an apparatus includes a primary dressing configured for application over a region of compromised skin and including fluid-absorbing material; and a secondary dressing configured for application over the primary dressing. The secondary dressing applies pressure to the primary dressing so as to maintain the primary dressing in place over the region of compromised skin and promote the flow of fluid from the region of compromised skin into the fluid-absorbing material, and allows moisture in the fluid to evaporate from the fluid-absorbing material. Under another aspect, a dressing includes a fabric layer sized to cover a region of compromised skin; a foam layer secured to the fabric layer and having an aperture defined therein sized to cover the region of compromised skin; and a biocompatible adhesive layer disposed on the foam layer. Methods of applying the dressing also are provided.
    Type: Application
    Filed: June 25, 2010
    Publication date: December 9, 2010
    Inventors: Adel Aali, Raymond Barbuto
  • Publication number: 20100286583
    Abstract: This invention provides a composition for forming a fabric by spraying onto a supporting surface, the composition comprising fibers, a binder dissolved in a first carrier and a second carrier wherein the boiling point of the second carrier is at least 400 C and is higher than the boiling point of the first carrier. Further aspects of the invention include the fabric formed by spraying the composition and an article comprising the fabric, an apparatus and a method for spraying the composition.
    Type: Application
    Filed: June 28, 2006
    Publication date: November 11, 2010
    Inventors: Manel Torres, Paul Luckham, Michael Musoke
  • Publication number: 20100268144
    Abstract: A scar treatment silicone dressing used for attaching onto wound of skin, comprising: a surface layer, a connection layer, a silicone layer, and a protection film. The surface layer is moisture permeable and water resistant thus providing protection function, and on one of its sides is disposed a silicone layer through a connection layer. The silicone layer is provided with penetrating through holes for controlling dissipation of moisture of skin wounds, as such assisting skin exiting perspiration to said surface layer via said through holes, hereby reducing the possibility that the acidic metabolite in perspiration getting in touch with the skin for long period of time in causing irritations/inflammations of the skin; meanwhile, it is also capable of preventing over-dissipation of moisture from the surface of skin, thus it will not adversely affect the repair and reconstruction of the scar tissue.
    Type: Application
    Filed: April 1, 2010
    Publication date: October 21, 2010
    Inventors: Yu-Ping LU, Tyler Wang
  • Patent number: 7794450
    Abstract: An apparatus for cleansing and promoting tissue growth in wounds, in which irrigant fluid optionally containing cell nutrients and/or other 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, a biodegradable scaffold in contact with the wound bed and a means for fluid cleansing and back to the dressing. The apparatus has means for supplying thermal energy to the fluid in the wound. 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. The dressing and a method of treatment using the apparatus.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: September 14, 2010
    Assignee: Smith & Nephew PLC
    Inventors: Patrick Lewis Blott, Bryan Greener, Edward Yerbury Hartwell, Julian Lee-Webb, Derek Nicolini, Clare Green, Robin Paul Martin
  • Patent number: 7780979
    Abstract: This invention involves fabric-supported chitosan modified temperature responsive PNIPAAm/PU hydrogel and the use thereof in preparation of facial mask. The merit of this invention is the hydrogel formed can reversibly swell and deswell near body temperature; the incorporation of PU can suppress the syneresis of PNIPAAm at an elevated temperature; Grafting of PNIPAAm and PU onto the surface of cellulose fabrics can enhance the mechanical strength of hydrogel; Coupling of chitosan to the surface of hydrogel can not only improve the handle and skin affinity, but also render the facial mask antibacterial; The hydrogel is capable of loading a variety of nutrients (or other functional components), which can release at body temperature; the hydrogel facial mask can be reusable with repeated rinsing.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: August 24, 2010
    Assignee: The Hong Kong Polytechnic University
    Inventors: Jinlian Hu, Wenguang Liu, Baohua Liu
  • Patent number: 7753894
    Abstract: An apparatus for cleansing wounds with means for stressing the wound bed and optionally tissue surrounding the wound, 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. 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. The means for stressing the wound bed and optionally tissue surrounding the wound promotes wound healing. The dressing and a method of treatment using the apparatus.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: July 13, 2010
    Assignee: Smith & Nephew PLC
    Inventors: Patrick Lewis Blott, Edward Yerbury Hartwell, Derek Nicolini, Clare Green, Robin Martin, Bryan Greener, Julian Lee-Webb
  • Patent number: 7745681
    Abstract: A fabric comprises first and second webs of gel-forming fiber needled to the first and second sides respectively of a textile fiber scrim. Such fabrics find application as wound dressings, in particular for packing cavity wounds.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: June 29, 2010
    Assignee: ConvaTec Limited
    Inventor: Paul John Ferguson
  • Patent number: 7737060
    Abstract: According to an aspect of the present invention, medical devices are provided that contain at least one multi-component polymeric fiber. The multi-component polymeric fiber further contains at least two components of differing composition.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: June 15, 2010
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Frederick H. Strickler, Barron Tenney
  • Patent number: 7723560
    Abstract: A wound vacuum therapy dressing kit is provided for use with a wound drainage system having a vacuum source. The kit may include a wound dressing member, a sealing film, and a wound measurement device. The wound dressing member may include a wound contacting surface configured to be in contact with and generally conform to a wound surface of a patient. The member may be adapted to be coupled to the vacuum source for communicating suction from the vacuum source to the wound surface. The sealing film of the kit may be provided for placement over the member and may be configured to adhere to a patient's healthy skin surrounding the wound. The wound measurement device may include a transparent top portion and a transparent bottom portion configured for placement adjacent the wound surface. The top portion may include a drawing surface and a grid associated with the drawing surface.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: May 25, 2010
    Inventors: Jeffrey S. Lockwood, Robert Petrosenko
  • Publication number: 20100100022
    Abstract: The invention relates to 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: Application
    Filed: September 26, 2007
    Publication date: April 22, 2010
    Applicant: T.J. SMITH & NEPHEW, LIMITED
    Inventors: Bryan Greener, Allan Freedline
  • Publication number: 20100062044
    Abstract: A ring-shaped toe-patch is provided for treatment and prevention of tinea pedis, commonly known as athlete's foot. The toe-patches are made of rubber-foam, attached to a hydrophobic material for elimination of fungus like T. rubrum. The toe-patch has cuts extending into the patch from the central circle in the toe-patch. Due to its perfect fit the toe-patch comes close to the affected area making it possible for a hydrophobic material attached to foam to effectively bind the fungi. Simultaneously with the elimination of the fungi the toe-patch works as a toe separator creating space between the toes.
    Type: Application
    Filed: September 9, 2009
    Publication date: March 11, 2010
    Inventors: Jan G. Smith, Mattias Andrup
  • Publication number: 20100042034
    Abstract: The subject matter of the invention is a wound care article, exhibiting fibers with gel-forming properties containing at least one planar structure, as well as fibers with non-gel-forming properties, characterized in that the fibers are arranged in the form of planar fabric bands.
    Type: Application
    Filed: August 12, 2009
    Publication date: February 18, 2010
    Inventor: Birgit Riesinger
  • Publication number: 20090324713
    Abstract: The invention is directed to a spray-on, non-woven fabric system and multilayer wound coverings for promoting wound healing, where the fabric system includes a first spray-on composition including a non-volatile carrier for keeping the wound moist and a second spray-on composition for covering the first composition and protecting the wound which includes fibers, a volatile carrier, and a binding agent, and where the multilayer wound covering includes a first layer formed from the first spray-on composition and a second layer covering the first layer, the second layer formed from the second spray-on composition.
    Type: Application
    Filed: June 30, 2008
    Publication date: December 31, 2009
    Inventors: John T. Ulman, Charlene Cheuk Ng
  • Publication number: 20090287131
    Abstract: A wound care product is a nonwoven fabric made of filaments bulked from a tow and fixed into a 3-dimensional structure.
    Type: Application
    Filed: July 23, 2009
    Publication date: November 19, 2009
    Inventors: Rene B. Neron, Raymond M. Robertson, Jitendrakumar N. Suthar, Gary E. Dehart
  • Publication number: 20090270785
    Abstract: The present invention relates to a self-adhesive dressing comprising a layer (1) of spunlace nonwoven material and attached thereto a layer (2) of adhesive. In accordance with the invention, the dressing is stretchable in a first direction (MD) corresponding to the machine direction of the nonwoven material and in a second direction (CD) perpendicular to the first direction, in conjunction with which the resistance to stretching is less than 10 N/25 mm in both the first (MD) and the second (CD) directions in the case of stretching of less than or equal to 5%.
    Type: Application
    Filed: December 16, 2005
    Publication date: October 29, 2009
    Inventor: Tomas Fabo
  • Patent number: 7604819
    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: March 6, 2007
    Date of Patent: October 20, 2009
    Assignee: Z-Medica Corporation
    Inventors: Raymond Huey, Denny Lo, Daniel J. Burns
  • Publication number: 20090221946
    Abstract: This invention relates to a wound dressing (10). The wound dressing includes first and second absorbent layers (12, 14) of a non-woven fabric of viscose and polyester fibres. Each absorbent layer has an operatively inner face (20, 26) and an operatively outer face (18, 22). The first and the second absorbent layers are bonded together with their operatively inner faces in face-to-face relationship, such that the absorbent layers together form a pad. The bonding between the first and second absorbent layers is effected by means of a needle-punching process in which the needle punching density is no more than 400 punches/cm2. The wound dressing further includes a third layer (16) sandwiched between and bonded to the first and second absorbent layers. The third layer is in the form of cotton gauze. The invention extends to a method of making a wound dressing, and to a method of treating a wound.
    Type: Application
    Filed: March 31, 2006
    Publication date: September 3, 2009
    Inventor: Jacobus Frederick Mouton
  • Patent number: 7563940
    Abstract: A wound dressing comprises a first layer 10 including a sheet that exerts a water pressure resistant function at an initial stage, a second layer 20 including an absorptive material, and a third layer 30 including a sheet impermeable to liquid. The first layer 10, the second layer 20 and the third layer 30 are integrally stacked together so that the second layer 20 is sandwiched between the first layer 10 and the third layer 30. The wound dressing will not be completely stuck on the wound surface, the exudates can be adequately held on the wound surface, and the exudates can be prevented from leaking to the outside through the dressing.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: July 21, 2009
    Assignees: Zuiko Corporation
    Inventor: Shuhei Kurata
  • Publication number: 20090156974
    Abstract: An absorbent wound care device comprising a wound contacting layer comprising an absorbent non-woven bi-component staple fibre material, said staple fibre material comprising fibres having at least one outside portion of highly hydrophilic material and least one inner core of a low-absorbing material, wherein the staple fibre material comprising fibres having at least one outside portion of highly hydrophilic material and least one inner core of a low-absorbing material constitutes above 50% of the fibrous material and wherein the absorbent material consists of mechanically intertwined fibres enables the use of an absorbent material comprising only fibres having at least one outside portion of highly hydrophilic material without having to rely on the presence of wicking fibres, which material is capable of absorbing liquid parts and slough from wound exudates without giving rise to gel blocking and also reduces of the risk of maceration due to wicking of moisture laterally in the plane of the wound to the nei
    Type: Application
    Filed: August 31, 2006
    Publication date: June 18, 2009
    Inventors: Jens Hog Truelsen, Brian Nielsen
  • Publication number: 20090054821
    Abstract: A medical sheet base includes a polyurethane nonwoven fabric and a polyurethane film combined with each other, and is improved in stretchability, air permeability, moisture permeability, water resistance and flexibility over prior-art medical sheet bases as required of the medical sheet base. The polyurethane nonwoven fabric includes continuous filaments each having an average filament diameter of not greater than 50 ?m, the filaments being deposited in a substantially unbound state and partly bonded to each other. The polyurethane film has minute pores present in opposite surfaces thereof and each having a diameter of not greater than 10 ?m, and minute pores communicating with each other along the thickness thereof.
    Type: Application
    Filed: March 29, 2007
    Publication date: February 26, 2009
    Applicants: KB SEIREN, LTD., SEIREN CO., LTD.
    Inventors: Yutaka Tanaka, Hiroyasu Shimizu, Sunao Takahira, Makoto Hirota
  • Publication number: 20080312573
    Abstract: A self adhesive medical wrap whose outer layer is moisture impervious. The inside layer is non-woven, moisture pervious and is made of wood cellulose fiber and a superabsorbent material called polyacrylate. Additional synthetic materials include polypropylene, polyester, and polyethylene to reduce leakage from the wound. The edges of the wrap consist of synthetic rubber strands for a closer fit. The bandage consists of three reclosable fasteners. They are the loop and hook system fasteners and contain no adhesives.
    Type: Application
    Filed: June 13, 2007
    Publication date: December 18, 2008
    Applicant: Mildred Loween Chappell
    Inventor: Mildred L. Chappell
  • Publication number: 20080255493
    Abstract: A wound dressing including an absorbent core defining opposed proximal and distal surfaces, the distal surface of the absorbent core defining a central portion, a border portion and an intermediate portion interposed between the central and border portions. The backing layer defines at least one compliant element disassociated from the distal surface of the absorbent core and including at least one ridge extending outwardly relative to the distal surface of the absorbent core.
    Type: Application
    Filed: April 16, 2008
    Publication date: October 16, 2008
    Inventors: Gudmundur Fertram Sigurjonsson, Thordur M. Elefsen
  • Publication number: 20080249452
    Abstract: The present invention provides a new wound-covering material. The wound-covering material is produced by carbonizing a silk material at temperature of 500-1000° C., and a large number of microfine holes are formed in a surface of the silk carbonized body. By carbonizing at such low temperature, the silk carbonized body has flexibility of the silk material, a significant antibacterial property, a high water-absorbing property and a high water absorption rate, so that the silk carbonized body is suitable for the wound-covering material.
    Type: Application
    Filed: July 8, 2005
    Publication date: October 9, 2008
    Inventors: Moriaki Tanaka, Makoto Shimizu
  • Patent number: RE40833
    Abstract: The present invention relates to a medicinal product with a textile component such as a wound compress having a surface containing a multiplicity of openings arranged in at least two hole patterns. The diameter of one opening of one hole pattern deviates from the diameter of an opening of another hole pattern by about at least a factor of 5. Better wound healing is achieved by adapting the structural and mechanical characteristics of the medicinal product to the characteristics of the target tissue.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: July 7, 2009
    Assignee: Tissupor AG
    Inventors: Erich Wintermantel, Jorg Mayer, Erdal Karamuk, Roland Seidl, Barbel Wagner, Bernhard Bischoff, Mario Billia