Nonwoven Fiber Pattern Patents (Class 602/45)
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Publication number: 20120294927Abstract: 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: ApplicationFiled: May 16, 2012Publication date: November 22, 2012Applicant: Lohmann & Rauscher GmbH & Co. KGInventor: MARIUS-THOMAS GORKA
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Patent number: 8299316Abstract: 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: GrantFiled: December 18, 2007Date of Patent: October 30, 2012Assignee: Ethicon, Inc.Inventors: Robert W. Van Holten, Jagdishchandra C. Patel, Stephen C. Yeadon
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Publication number: 20120270111Abstract: 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: ApplicationFiled: June 14, 2012Publication date: October 25, 2012Applicant: TECHMER PM, LLCInventors: Sheng-Shing Li, Andrew J. Leggio, George H. Menzie, David Devore, John J. McNamara, TaHau Yu, Douglas W. Horsey
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Patent number: 8273369Abstract: 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: GrantFiled: May 17, 2010Date of Patent: September 25, 2012Assignee: Ethicon, Inc.Inventors: Olajompo Moloye-Olabisi, Dhanuraj S. Shetty, Robert W. Van Holten, Degang Zhong
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Patent number: 8263115Abstract: 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: GrantFiled: September 9, 2009Date of Patent: September 11, 2012Assignee: Abigo Medical ABInventors: Jan G. Smith, Mattias Andrup
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Patent number: 8257732Abstract: 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: GrantFiled: May 25, 2011Date of Patent: September 4, 2012Assignee: Z-Medica CorporationInventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
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Patent number: 8257731Abstract: 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: GrantFiled: September 9, 2009Date of Patent: September 4, 2012Assignee: Z-Medica CorporationInventors: Jeffry Horn, Raymond Huey
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Patent number: 8252318Abstract: 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: GrantFiled: November 2, 2006Date of Patent: August 28, 2012Assignee: Z-Medica CorporationInventors: Raymond J. Huey, Jeffrey L. Horn
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Publication number: 20120215148Abstract: 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: ApplicationFiled: September 13, 2011Publication date: August 23, 2012Inventors: Yvonne Ewert, Frank-Günter Niemz, Marcus Krieg, Bernd Riedel
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Publication number: 20120203145Abstract: 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: ApplicationFiled: October 20, 2010Publication date: August 9, 2012Applicant: Molnlycke Health Care ABInventor: Carianne Nilsson
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Patent number: 8237010Abstract: 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: GrantFiled: August 30, 2011Date of Patent: August 7, 2012Assignee: Boehringer Technologies, L.P.Inventors: John R. Boehringer, John Karpowicz, Christopher L. Radl
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Publication number: 20120172776Abstract: 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: ApplicationFiled: March 2, 2012Publication date: July 5, 2012Applicants: Entegrion, Inc., The University of North Carolina at Chapel HillInventors: Thomas H. Fischer, E. Stan Eskridge, JR., William M. Malloy, JR., Malloy Evans
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Patent number: 8202532Abstract: 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: GrantFiled: November 3, 2009Date of Patent: June 19, 2012Assignee: Z-Medica CorporationInventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
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Publication number: 20120095380Abstract: 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: ApplicationFiled: May 11, 2010Publication date: April 19, 2012Applicant: MOLNLYCKE HEALTH CARE ABInventors: Ann-Britt Gergely, Bengt Netsner, Anders Dahlberg, Eva-Karin Daun
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Patent number: 8158845Abstract: 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: GrantFiled: June 27, 2005Date of Patent: April 17, 2012Assignee: Advanced Medical Solutions LimitedInventors: Yimin Qin, Denis Keith Gilding
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Patent number: 8158844Abstract: 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: GrantFiled: March 12, 2009Date of Patent: April 17, 2012Assignee: KCI Licensing, Inc.Inventor: Bruce McNeil
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Patent number: 8114433Abstract: 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: GrantFiled: October 19, 2009Date of Patent: February 14, 2012Assignee: Z-Medica CorporationInventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
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Publication number: 20110275971Abstract: 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: ApplicationFiled: June 6, 2011Publication date: November 10, 2011Inventor: Pierre Jean Messier
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Patent number: 8022266Abstract: 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: GrantFiled: May 20, 2009Date of Patent: September 20, 2011Assignee: Boehringer Technologies, L.P.Inventors: John R. Boehringer, John Karpowicz, Amitabha Mitra, Christopher L. Radl
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Publication number: 20110208101Abstract: 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: ApplicationFiled: February 18, 2011Publication date: August 25, 2011Inventors: Keith A. Keller, Robert M. MacMeccan, Le Zhang, Thomas A. Canada
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Publication number: 20110183712Abstract: 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: ApplicationFiled: April 8, 2011Publication date: July 28, 2011Applicant: Paul Hartmann AktiengesellschaftInventors: Axel Eckstein, Juergen Hofstetter
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Publication number: 20110172580Abstract: 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: ApplicationFiled: March 28, 2011Publication date: July 14, 2011Inventor: DAVID M. DIXON
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Patent number: 7968114Abstract: 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: GrantFiled: October 30, 2006Date of Patent: June 28, 2011Assignee: Z-Medica CorporationInventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
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Publication number: 20110077571Abstract: 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: ApplicationFiled: May 18, 2009Publication date: March 31, 2011Applicant: MOLNLYCKE HEALTH CARE ABInventor: Angelica Andresen
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Patent number: 7888545Abstract: 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: GrantFiled: December 16, 2005Date of Patent: February 15, 2011Assignee: Mölnlycke Heath Care ABInventor: Tomas Fabo
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Patent number: 7884258Abstract: 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: GrantFiled: November 5, 2004Date of Patent: February 8, 2011Assignee: Boehringer Technologies, L.P.Inventors: John R. Boehringer, John Karpowicz, Amitabha Mitra, Christopher L. Radl
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Publication number: 20100312159Abstract: 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: ApplicationFiled: June 25, 2010Publication date: December 9, 2010Inventors: Adel Aali, Raymond Barbuto
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Publication number: 20100286583Abstract: 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: ApplicationFiled: June 28, 2006Publication date: November 11, 2010Inventors: Manel Torres, Paul Luckham, Michael Musoke
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Publication number: 20100268144Abstract: 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: ApplicationFiled: April 1, 2010Publication date: October 21, 2010Inventors: Yu-Ping LU, Tyler Wang
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Patent number: 7794450Abstract: 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: GrantFiled: October 28, 2004Date of Patent: September 14, 2010Assignee: Smith & Nephew PLCInventors: Patrick Lewis Blott, Bryan Greener, Edward Yerbury Hartwell, Julian Lee-Webb, Derek Nicolini, Clare Green, Robin Paul Martin
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Patent number: 7780979Abstract: 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: GrantFiled: January 27, 2006Date of Patent: August 24, 2010Assignee: The Hong Kong Polytechnic UniversityInventors: Jinlian Hu, Wenguang Liu, Baohua Liu
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Patent number: 7753894Abstract: 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: GrantFiled: December 17, 2007Date of Patent: July 13, 2010Assignee: Smith & Nephew PLCInventors: Patrick Lewis Blott, Edward Yerbury Hartwell, Derek Nicolini, Clare Green, Robin Martin, Bryan Greener, Julian Lee-Webb
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Patent number: 7745681Abstract: 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: GrantFiled: June 21, 1999Date of Patent: June 29, 2010Assignee: ConvaTec LimitedInventor: Paul John Ferguson
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Patent number: 7737060Abstract: 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: GrantFiled: March 31, 2006Date of Patent: June 15, 2010Assignee: Boston Scientific Scimed, Inc.Inventors: Frederick H. Strickler, Barron Tenney
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Patent number: 7723560Abstract: 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: GrantFiled: December 20, 2002Date of Patent: May 25, 2010Inventors: Jeffrey S. Lockwood, Robert Petrosenko
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Publication number: 20100100022Abstract: 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: ApplicationFiled: September 26, 2007Publication date: April 22, 2010Applicant: T.J. SMITH & NEPHEW, LIMITEDInventors: Bryan Greener, Allan Freedline
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Publication number: 20100062044Abstract: 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: ApplicationFiled: September 9, 2009Publication date: March 11, 2010Inventors: Jan G. Smith, Mattias Andrup
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Publication number: 20100042034Abstract: 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: ApplicationFiled: August 12, 2009Publication date: February 18, 2010Inventor: Birgit Riesinger
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Publication number: 20090324713Abstract: 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: ApplicationFiled: June 30, 2008Publication date: December 31, 2009Inventors: John T. Ulman, Charlene Cheuk Ng
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Publication number: 20090287131Abstract: A wound care product is a nonwoven fabric made of filaments bulked from a tow and fixed into a 3-dimensional structure.Type: ApplicationFiled: July 23, 2009Publication date: November 19, 2009Inventors: Rene B. Neron, Raymond M. Robertson, Jitendrakumar N. Suthar, Gary E. Dehart
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Publication number: 20090270785Abstract: 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: ApplicationFiled: December 16, 2005Publication date: October 29, 2009Inventor: Tomas Fabo
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Patent number: 7604819Abstract: 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: GrantFiled: March 6, 2007Date of Patent: October 20, 2009Assignee: Z-Medica CorporationInventors: Raymond Huey, Denny Lo, Daniel J. Burns
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Publication number: 20090221946Abstract: 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: ApplicationFiled: March 31, 2006Publication date: September 3, 2009Inventor: Jacobus Frederick Mouton
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Patent number: 7563940Abstract: 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: GrantFiled: December 19, 2005Date of Patent: July 21, 2009Assignees: Zuiko CorporationInventor: Shuhei Kurata
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Publication number: 20090156974Abstract: 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 neiType: ApplicationFiled: August 31, 2006Publication date: June 18, 2009Inventors: Jens Hog Truelsen, Brian Nielsen
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Publication number: 20090054821Abstract: 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: ApplicationFiled: March 29, 2007Publication date: February 26, 2009Applicants: KB SEIREN, LTD., SEIREN CO., LTD.Inventors: Yutaka Tanaka, Hiroyasu Shimizu, Sunao Takahira, Makoto Hirota
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Publication number: 20080312573Abstract: 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: ApplicationFiled: June 13, 2007Publication date: December 18, 2008Applicant: Mildred Loween ChappellInventor: Mildred L. Chappell
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Publication number: 20080255493Abstract: 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: ApplicationFiled: April 16, 2008Publication date: October 16, 2008Inventors: Gudmundur Fertram Sigurjonsson, Thordur M. Elefsen
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Publication number: 20080249452Abstract: 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: ApplicationFiled: July 8, 2005Publication date: October 9, 2008Inventors: Moriaki Tanaka, Makoto Shimizu
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Patent number: RE40833Abstract: 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: GrantFiled: January 28, 2000Date of Patent: July 7, 2009Assignee: Tissupor AGInventors: Erich Wintermantel, Jorg Mayer, Erdal Karamuk, Roland Seidl, Barbel Wagner, Bernhard Bischoff, Mario Billia