Wound Contact Surface Patents (Class 602/43)
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Patent number: 8951599Abstract: A wound dressing and a method of making the wound dressing is described herein. The wound dressing is formed of an absorbent substrate formed of one or more layers and a low-adherence layer disposed on the substrate. The low-adherence layer can be disposed within at least a portion of the substrate. The low-adherence layer is formed of a mixture of at least one highly fluorinated polymer and at least one acidic polymer. The at least one highly fluorinated polymer has a fluorine content greater than the fluorine content of the at least one acidic polymer.Type: GrantFiled: November 15, 2012Date of Patent: February 10, 2015Assignee: International Business Machines CorporationInventors: Robert D. Allen, Christopher E. Bannister, Jere J. Brophy, Richard A. DiPietro
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Publication number: 20150038892Abstract: The invention relates to an active surface element (2) for improved healing of cell layer lesions comprising at least one topographically structured surface on a substrate, with a pattern comprising alternating ridges (5) and grooves (6) with a pattern period (p) and extending along a pattern length (l), wherein the pattern period (p) is smaller than 10 ?m and the pattern length (l) is larger than 1 mm. The invention furthermore relates to methods of making such an active surface element as well as to bandages, in particular adhesive bandages comprising such active surface elements.Type: ApplicationFiled: December 10, 2012Publication date: February 5, 2015Applicant: ETH ZURICHInventors: Anastasios Marmaras, Vartan Kurtcuoglu, Aldo Ferrari, Dimos Poulikakos
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Publication number: 20150025436Abstract: A wound protecting and fixing device includes at least a protecting and fixing layer (1) with an opening. The opening (11) is defined in the protecting and fixing layer and configured to extend between an upper plane and a lower plane of the protecting and fixing layer along a longitudinal direction, and to surround a wound therein so that the protecting and fixing layer (1) with the opening limits an increase of tension at the wound and a movement-incurred wrinkle of skin at the wound. The protecting and fixing layer (1) with the opening includes a flexible protecting and fixing layer (1a) with an opening and a rigid protecting and fixing layer (1b) with an opening. The device can prevent the wound from being ripped and ruptured, and prevent damages caused by movement-incurred wrinkles of the skin at the wound and relative displacement frictions.Type: ApplicationFiled: February 16, 2012Publication date: January 22, 2015Inventors: Erhu Tang, Yina Tang, Qiongchen Jiang
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Patent number: 8916741Abstract: A wound closure system having first, second and third adhesive pads with a pair of strap members fixedly secured to the first and third adhesive pads. The pair of strap members are slidably received within the second adhesive pad. When the third adhesive pad is displaced, the first and second adhesive pads are displaced toward each other to close the wound.Type: GrantFiled: December 17, 2012Date of Patent: December 23, 2014Inventors: Robert E. Fischell, Leigh Vinocur
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Publication number: 20140371650Abstract: A unique multi-functional emergency bandage is introduced, wherein bleeding is stopped by: (1) optimizing mechanical properties and preventing ischemia and/or necrosis while applying enough pressure to help stop bleeding, and (2) incorporating inorganic anti-bleeding nano-structures (embedded within a gauze and/or microbial cellulose) with almost infinite life-time. Additionally, pathogen passage through the bandage is prohibited (via an intermediate filter layer). Together with the overall anti-microbial character of the bandage, the unique multi-functional bandage offers all these vital features within a single design. The unique bandage can be applied by using a single hand and bandaging direction can be changed using a unique binding apparatus.Type: ApplicationFiled: June 18, 2013Publication date: December 18, 2014Inventors: Ozgur Cobanoglu, Jitka Eryilmaz, Deniz Sener, Mehmet Eryilmaz
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Publication number: 20140341969Abstract: 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: July 31, 2014Publication date: November 20, 2014Applicant: LOHMANN & RAUSCHER GMBH & CO. KGInventor: MARIUS-THOMAS GORKA
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Patent number: 8887732Abstract: Method and devices for the prevention and treatment of pressure ulcers are described in which a portable support assembly may be worn by a bed-stricken individual around particular regions of the body where pressure ulcers tend to form. The portable support assembly may generally include one or more individual fluid filled pods which are enclosed entirely within an inner fluid pad localized along a central portion. Both the one or more pods and inner fluid pad are then enclosed entirely by another layer of fluid within an outer fluid pad which extends over the entire assembly. Each of the fluid layers may be secured to an outer shell which is relatively stiffer than the fluid layers and may restrict or limit the expansion or movement of the fluid pods and/or fluid pads.Type: GrantFiled: March 4, 2013Date of Patent: November 18, 2014Assignee: PRS Medical Technologies, Inc.Inventors: George Y. Choi, Nikhil Bhat
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Patent number: 8871992Abstract: The invention provides a layered composition comprising: a first layer comprising a first material, wherein the first material comprises a gel material; a second layer comprising a second material, wherein the second material is harder is than the first material; and a third layer comprising a third material, wherein the third material has a lower tensile modulus than the second material, wherein the second layer is disposed between the first and third layers. The composition may be used in a wound dressing, in which preferably the first layer is in fluid flow communication with the wound.Type: GrantFiled: March 24, 2010Date of Patent: October 28, 2014Assignee: First Water LimitedInventors: Hugh Semple Munro, Philip Andrews
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Patent number: 8864748Abstract: A reduced pressure treatment apparatus includes a charging chamber storing a first pressure less than an ambient pressure and a regulated chamber storing a second pressure less than the ambient pressure. The first pressure is less than the second pressure. A conduit provides fluid communication between the regulated chamber and the charging chamber. A regulator member is operably associated with the conduit to prevent fluid communication through the conduit when the second pressure is less than or equal to a desired therapy pressure and to allow fluid communication through the conduit when the second pressure exceeds the desired therapy pressure.Type: GrantFiled: May 1, 2009Date of Patent: October 21, 2014Assignee: KCI Licensing, Inc.Inventors: Richard Daniel John Coulthard, Timothy Mark Robinson, Christopher Brian Locke
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Patent number: 8853486Abstract: 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: GrantFiled: April 27, 2010Date of Patent: October 7, 2014Assignee: Lohmann & Rauscher GmbHInventors: Thomas Wild, Georg Wagner, Christian Rohrer, Erik Steinlechner
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Publication number: 20140296764Abstract: The invention relates to the use of a semi-occlusive flexible flat wound dressing having a wound contacting layer consisting of an elastomer or a thermoplastic elastomer component in which hydrophilic polymers are embedded, for treating contaminated wounds in animals, in particular in the region of the body limbs.Type: ApplicationFiled: September 4, 2012Publication date: October 2, 2014Applicant: DR. KENNDOFF GMBH & CO. KGInventor: Jochen Kenndoff
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Publication number: 20140296763Abstract: A protective device configured in accordance with a particular embodiment includes a cover including a first region that extends over a vulnerable site on a patient and a second region that extends over an area on the patient peripheral to the vulnerable site. The first region of the cover is at least generally impermeable to liquid water. The device further includes an adhesive film and a liquid-absorbing element. The adhesive film is configured to form an adhesive bond between the second region of the cover and the patient. The bond has an inner edge portion positioned toward the vulnerable site and an outer edge portion positioned away from the vulnerable site. The liquid-absorbing element is configured to absorb liquid contamination at the outer edge portion of the bond and/or liquid contamination approaching the outer edge portion of the bond when the cover is operably positioned on the patient.Type: ApplicationFiled: March 25, 2014Publication date: October 2, 2014Applicant: CENORIN, LLCInventors: Art Seguin, Gerry Arambula
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Patent number: 8846076Abstract: 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: November 20, 2012Date of Patent: September 30, 2014Inventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
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Patent number: 8802916Abstract: A reduced-pressure treatment system for treating a wound on a patient includes a composite manifold that may help prevent or minimize injury to a wound edge of the wound being treated with reduced pressure. The composite manifold includes a perimeter manifold member and an inboard manifold member. The perimeter manifold member is designed to not collapse substantially under reduced pressure in a therapy range. The perimeter manifold member may be more rigid with respect to compressibility than the inboard manifold member. A sealing member is used to form a fluid seal over the wound, and a reduced-pressure subsystem provides reduced pressure to the composite manifold. Other systems, methods, and dressings are presented.Type: GrantFiled: November 17, 2009Date of Patent: August 12, 2014Assignee: KCI Licensing, Inc.Inventors: Edward S. Griffey, Larry Tab Randolph, Charles Alan Seegert
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Publication number: 20140221896Abstract: The inventive disclosure contained herein is generally directed to a class of medical bandages that in many embodiments are effective in the treatment of various types of tissue burns, whether be burns due to thermal burns, sun exposure, or rashes. Such products can include a plurality of specialized bandages and wraps that incorporate an extremely thin layer of aluminum at the base of a substrate adapted to be in direct contact with a burn wound, while manufacturing the top side of the aluminum substrate to have a heat-dissipationenhancing topography to help cool burns faster. The bandage can also feature a thermochromic indicator for users to realize the thermal-cooling status of a burn to which a bandage has been applied.Type: ApplicationFiled: December 23, 2011Publication date: August 7, 2014Applicant: ALUMINAID INTERNATIONAL, AGInventors: Carl J. Freer, Ericka S. Freer, Terrence M. Wyles
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Patent number: 8791315Abstract: Embodiments disclosed herein are directed to the treatment of wounds using negative pressure. Some embodiments disclosed herein provide for a foam pad, which may be suitable for use in abdominal wound sites, and which may be sized in a dimensionally-independent manner. Additional embodiments provide for a wound contact layer, as well as a system for the treatment of abdominal wounds.Type: GrantFiled: September 20, 2010Date of Patent: July 29, 2014Assignee: Smith & Nephew, Inc.Inventors: James D. Lattimore, Michael B. Mosholder
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Patent number: 8784876Abstract: 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: June 6, 2013Date of Patent: July 22, 2014Assignee: Z-Medica, LLCInventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
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Publication number: 20140200500Abstract: A device and method for mitigating swelling and discomfort in a mesotherapy treatment area is disclosed. A compression band is wrapped around the treated area multiple times a day for a period of about 1 hour for each session after undergoing mesotherapy treatment.Type: ApplicationFiled: December 3, 2013Publication date: July 17, 2014Inventor: Jeffrey A. Klein
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Patent number: 8776798Abstract: Method and devices for the prevention and treatment of pressure ulcers are described in which a portable support assembly may be worn by a bed-stricken individual around particular regions of the body where pressure ulcers tend to form. The portable support assembly may generally include one or more individual fluid filled pods which are enclosed entirely within an inner fluid pad localized along a central portion. Both the one or more pods and inner fluid pad are then enclosed entirely by another layer of fluid within an outer fluid pad which extends over the entire assembly. Each of the fluid layers may be secured to an outer shell which is relatively stiffer than the fluid layers and may restrict or limit the expansion or movement of the fluid pods and/or fluid pads.Type: GrantFiled: July 22, 2011Date of Patent: July 15, 2014Assignee: PRS Medical Technologies, Inc.Inventors: George Y. Choi, Nikhil Bhat
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Publication number: 20140194802Abstract: The present invention relates to a protective bandage device and to methods of use thereof.Type: ApplicationFiled: January 4, 2014Publication date: July 10, 2014Inventor: Todd P. Check
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Publication number: 20140171848Abstract: 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: ApplicationFiled: February 20, 2014Publication date: June 19, 2014Applicant: Z-Medica, LLCInventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
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Publication number: 20140163445Abstract: The present invention relates to free-form structures made by additive manufacturing, and methods for the manufacture thereof. The rigid free-form structures comprise a lattice structure which is impregnated by a polymeric or other material. The rigid free-form structures may be used in wound treatment, e.g. as a facial mask.Type: ApplicationFiled: August 3, 2012Publication date: June 12, 2014Applicant: MATERIALISE NVInventors: Jari Heikki Petteri Pallari, Mikael Lars Justinus De Bruijn
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Publication number: 20140155800Abstract: Methods for providing faster visual and functional recovery of patients following ocular therapy such as ocular therapy involving manipulation of the ocular tissue and/or associated with a lesion external to the optical region and ocular therapy involving incising the ocular tissue and implanting a device within the optical region are disclosed. Methods of healing a trauma wound to a cornea and methods of protecting an eye of a patient from potential injury are also disclosed. The disclosed methods comprise providing a covering to the eye of a patient wherein the covering comprises an inner portion having an inner rigidity and at least one inner radius of curvature; and an outer portion having an outer rigidity and at least one outer radius of curvature; wherein the inner rigidity is greater than the outer rigidity.Type: ApplicationFiled: February 5, 2014Publication date: June 5, 2014Applicant: NexisVision, Inc.Inventors: Eugene de Juan, JR., Cary J. Reich, Yair Alster, Matt Clarke, Kunagmon Ashley Tuan, Brian Levy
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Patent number: 8728513Abstract: A wound dressing having anti-microbial activity comprises a first fiber capable of bonding with silver (1) cations. The wound dressing comprises a blend of the first fiber to which silver (1) cations are bonded and a second fiber which is substantially free from silver. The wound dressing comprises from 0.01 to 5.0 percent by weight of silver (1) cations, based on the weight of fiber.Type: GrantFiled: February 14, 2013Date of Patent: May 20, 2014Assignee: Convatec Technologies Inc.Inventor: David Malcolm Woods
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Publication number: 20140135676Abstract: Tubular bandage, in particular a finger or toe bandage which is formed as a tube comprising an outer layer which is connected to an inner layer, and wherein the outer layer has a diameter and an elasticity such that the bandage can be clamped adhesive-free around the body part to be treated, in the particular, said finger or said toe, and wherein the inner layer is made of an elastic wound-protective material, wherein said outer layer is made of an air-permeable and water-repellent material, and wherein, at the open endings, said outer layer extends in the longitudinal direction over the inner layer over a distance of more than 0.5 mm, such that the outer layer touches the body part to be treated, in particular a finger or toe, with its endings when applied.Type: ApplicationFiled: June 26, 2012Publication date: May 15, 2014Applicant: DE MAN PROJECTS SAInventor: Cedric Lodewijk H. De Man
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Patent number: 8722961Abstract: 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: GrantFiled: April 1, 2005Date of Patent: May 13, 2014Assignee: Inotec and LimitedInventors: Melvin Frederick Vinton, Allan Hurst, Derek Fray
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Patent number: 8722960Abstract: The present invention provides systems and methods for protecting a wound and managing exudate released from the wound comprising a dressing having a support cushion for surrounding the wound and periwound region; a wicking strip for application in the periwound region between the support cushion and the wound; and a reservoir for application over the wicking strip, the wicking strip configured to transfer exudate from the wound to the reservoir, where the exudate is sequestered. Various alternative embodiments are described in which the wicking strip may be custom-fit to approximate an irregular wound margin, to apply a preferred pressure gradient to the periwound regions, to periodically apply fluids to the wound bed or to apply negative pressure wound therapy. Methods of applying the dressing also are provided.Type: GrantFiled: December 7, 2012Date of Patent: May 13, 2014Assignee: Aalnex, Inc.Inventors: Adel Aali, Raymond Barbuto
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Publication number: 20140121580Abstract: A dressing is provided. The dressing includes a back layer, a composite substrate, and a gel layer. The back layer has a surface. The composite substrate is disposed on the surface of the back layer, and includes a substrate layer and at least one barrier layer. The barrier layer is disposed between the back layer and the substrate layer. The gel layer is disposed on the composite substrate, wherein the substrate layer is located between the gel layer and the barrier layer. The barrier layer prevents liquid from permeating from the substrate layer to the surface of the back layer.Type: ApplicationFiled: February 21, 2013Publication date: May 1, 2014Applicant: TATUNG COMPANYInventor: Cheng-Yang Lee
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Patent number: 8708991Abstract: Disclosed is an apparatus for use when a hypodermic needle, partially protruding from a limb, is to be withdrawn fully from the limb to leave a puncture wound. The apparatus comprises an absorber, a receiver and, optionally, a strap. The absorber includes a medium which is able to absorb blood. In use, the absorber is placed in overlying, abutting relation to the needle prior to withdrawal of the needle from the limb. Following withdrawal of the needle from the limb, absorber is urged against the puncture wound to promote hemostasis. The receiver in use, is releasably connected to the absorber. The strap can be coupled to the receiver to define, in use and in combination with the apparatus, a tourniquet. The absorber can be disposable and the strap and receiver can be reusable.Type: GrantFiled: January 7, 2011Date of Patent: April 29, 2014Assignee: 2301142 Ontario Inc.Inventors: Jason Turner, Mario Lopez
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Patent number: 8710289Abstract: A dressing for covering a wound of a patient comprises a sheet member adapted to be adhered to the patient's skin in use to provide an airtight seal around the wound, wherein the skin-adhesion is provided by a hydrogel layer 10 on the skin-facing face of the sheet member, wherein the sheet member defines in use a substantially enclosed space 5 above the wound, and wherein a plurality of mutually spaced-apart flutter valves formed by holes 5 in a thin film 13 overlying an upper face of a layer 12 of the sheet member permit one-way air, blood and/or other fluid flow communication from the space 5 above the wound to the exterior of the dressing.Type: GrantFiled: August 26, 2011Date of Patent: April 29, 2014Assignees: First Water Limited, Prometheus Medical LtdInventors: Malcolm Russell, Philip Andrews, Hugh Semple Munro, Robert Halstead, David Preece
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Patent number: 8707962Abstract: A device for protecting an area of skin of a human body includes a plate. The plate includes a first face covered by an external layer and a second face opposite the external layer. The second face is configured to be applied onto an area of skin to be protected. The plate also includes a protective part made of a polymer gel and at least one adhesive part made of a polymer gel. The protective part is configured to ensure mechanical protection of the area to be protected and the adhesive part is configured to come into contact with the skin. The adhesive part has an adhesive power greater than an adhesive power of the protective layer to hold the plate on the area to be protected.Type: GrantFiled: August 3, 2011Date of Patent: April 29, 2014Assignee: Millet InnovationInventors: Jean-Pierre Dominguez, Damien Millet, Jean-Claude Millet
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Patent number: 8710290Abstract: 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: July 5, 2012Date of Patent: April 29, 2014Assignee: Boehringer Technologies, L.P.Inventors: John R. Boehringer, John Karpowicz, Amitabha Mitra, Christopher L. Radl
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Patent number: 8686214Abstract: An improved post-operative dressing for providing both breast and, notably, nipple reconstruction and which in particular establishes custom lateral supporting of the nipple annulus. A body is constructed of a medical grade silicone and exhibits a three dimensional shape adapted for placement over the reconstructed breast and an aperture defined by an inner rim configured within the body is adapted to seat therethrough an associated nipple graft in a laterally supporting and non-pressure applied fashion. A number of secondary advantages incorporated into the body include each of apertures for breathability, suction/adherence properties, and impregnation or entrainment within the body inner surface of any form of anti-infection medicine.Type: GrantFiled: August 27, 2010Date of Patent: April 1, 2014Inventors: Julie Hyde-Edwards, Miguel A. Linares
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Patent number: 8680359Abstract: A reduced pressure tissue treatment system includes an applicator having an aperture, a first pad section, and a second pad section substantially covering the aperture and positioned substantially adjacent the first pad section. A fabric layer is located at least partially between the second pad section and the drape, and the fabric layer includes a woven or non-woven fabric made from a fiber material. A drape substantially covers the first pad section, the second pad section, the fabric layer, and the applicator. A reduced pressure source is in fluid communication with at least one of the first pad section and the fabric layer for providing reduced pressure to the aperture.Type: GrantFiled: March 26, 2012Date of Patent: March 25, 2014Assignee: KCI Licensing, Inc.Inventors: Timothy Mark Robinson, Christopher Brian Locke
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Patent number: 8674165Abstract: A pad of elastomeric material having a softness of no more than about durometer 30 Shore 00. The pad may carry adhesive for adhering the pad to a surface, either directly or indirectly through an envelope which surrounds the pad and carries the adhesive. Such a pad exhibits hemostatic and leak prevention properties against needle puncture holes in the skin or the wall of a hollow medical device. Particularly, hemostasis may be prevented with low pressure application of the pad to the skin. The pad may be previously applied to the skin of the patient or a wall of a medical device such as tubing or a solution bag, and the needle may then penetrate both the pad and the skin or medical device wall, to make a resealable puncture with leakage reduction and hemostasis when the needle is withdrawn.Type: GrantFiled: July 8, 2011Date of Patent: March 18, 2014Assignee: Lifestream Medical CorporationInventors: David S. Utterberg, William J. Schnell
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Patent number: 8674166Abstract: The invention relates to a thin film dressing having a release liner which is able to support the dressing during application. The resilience or stiffness of the release liner is higher than the resilience or stiffness of the dressing so as to enable the control of the dressing during application. The invention further relates to a method of application of the thin film dressing where a minor part of the dressing initially is applied to the skin afterwards the dressing is folded backwards so the release liner faces upwards. Finally, the remaining part of the dressing is applied by pushing the release liner forwards in a rolling motion thereby rolling the dressing onto the skin. This dressing assembly allows the dressing to be applied by using only one hand.Type: GrantFiled: November 12, 2007Date of Patent: March 18, 2014Assignee: Coloplast A/SInventor: Grazyna Hansen
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Patent number: 8664464Abstract: 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: GrantFiled: December 12, 2003Date of Patent: March 4, 2014Assignee: Systagenix Wound Management (US), Inc.Inventors: Hugh S. Munro, Derek Silcock, Simon W. Bayliff, Richard Hoskins, Susana S. Garcia, Helen Burgess, Justin Barnes
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Publication number: 20140046237Abstract: The inventive disclosure contained herein is generally directed to a class of medical bandages that in many embodiments are effective in the treatment of various types of tissue burns, whether be burns due to thermal burns, sun exposure, or rashes. Such products can include a plurality of specialized bandages and wraps that incorporate an extremely thin layer of thermally conductive metal (often aluminum) at the base of a substrate adapted to be in direct contact with a burn wound, while manufacturing the top side of the aluminum substrate to have a heat-dissipation-enhancing topography to help cool burns faster by enhancing thermal-convection properties. The bandage can also feature a thermochromic indicator for users to realize the thermal-cooling status of a burn to which a bandage has been applied.Type: ApplicationFiled: September 9, 2013Publication date: February 13, 2014Applicant: Harrisburg (B.V.I.) LimitedInventors: Carl J. Freer, Ericka S. Freer, Terrence M. Wyles
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Publication number: 20140046236Abstract: The present invention relates to a layered chitosan scaffold wherein said layered scaffold comprises at least two fused layers, wherein at least one of the fused layers comprises a chitosan nanofiber membrane and the other fused layer comprises a porous chitosan support layer. Moreover, the present invention provides a layered chitosan scaffold characterized by (i) a good adhesion between the porous and nanofiber layers, (ii) a tuneable porosity of the nanofiber layer by tuning the distance between the nanofibers, (iii) a stable nanofibers and porous morphology even when immersed in water or other solvents and a process for the preparation of such layered chitosan scaffold. The present invention also provides a process for the preparation of the layered chitosan scaffold.Type: ApplicationFiled: May 24, 2011Publication date: February 13, 2014Applicant: UNIVERSITY OF LIEGEInventors: Patrice Filée, Astrid Freichels, Christine Jéröme, Abdelhafid Aquil, Alain Colige, Victor Tchemtchoua Tateu
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Patent number: 8647663Abstract: The invention is directed to a novel wound healing device. In particular, the invention is directed to a novel wound healing device comprising a suture or knitted mesh that has adsorbed onto it novel cellular factor-containing compositions (referred to herein as CFC), including Amnion-derived Cellular Cytokine Solution (referred to herein as ACCS) or Physiologic Cytokine Solutions (herein referred to as PCS), as well as methods of making and uses thereof.Type: GrantFiled: November 14, 2012Date of Patent: February 11, 2014Assignee: Stemnion, Inc.Inventors: David L. Steed, Randall G. Rupp, Howard C. Wessel
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Patent number: 8647662Abstract: The invention is directed to a wound healing device. Such wound healing device utilizes novel wound healing compositions embedded onto or into a natural plant-derived cloth-based matrix.Type: GrantFiled: November 13, 2012Date of Patent: February 11, 2014Assignee: Stemnion, Inc.Inventors: David L. Steed, Linda O. Palladino
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Patent number: 8646456Abstract: Antibacterial agents comprise as an active ingredient a hemostatic contact cloth having an acidic pH combined with povidone iodine. Also disclosed are surgical dressings. Also disclosed are devices for active protection of incision margins.Type: GrantFiled: September 30, 2008Date of Patent: February 11, 2014Inventor: Gilles Touati
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Patent number: 8642831Abstract: A matrix material comprising a pharmaceutical composition printed on the surface is described. In one embodiment the pharmaceutical composition comprises thrombin. A method for making the matrix material with a pharmaceutical composition printed on the surface is also described. The matrix material can be used for promotion of hemostasis and/or wound healing. A kit-of-parts comprising a matrix with a pharmaceutical composition and a container with a peelable lid is described.Type: GrantFiled: February 27, 2009Date of Patent: February 4, 2014Assignee: Ferrosan Medical Devices A/SInventors: Kristian Larsen, Mads Sabra
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Patent number: 8637725Abstract: Apparatus and associated methods for a wound valve assembly provide an annular space extending radially around a central portion of a valve, which valve acts to substantially relieve pressure build up in a thoracic cavity when applied to a thoracic wound. In an illustrative example, the valve assembly may form an annular space that extends radially in all directions around a check valve. In some examples, gasses and exudates may flow substantially radially and/or parallel to the patient's local body. Various embodiments may advantageously provide open fluid communication for the gasses and exudates escaping from the wound when the valve assembly is partially covered (e.g., body armor, clothing, blankets), or when the patient may be lying down on the side of the body with the wound, for example.Type: GrantFiled: October 8, 2012Date of Patent: January 28, 2014Assignee: FastTrack Medical Solutions LLCInventors: William Scheremet, Steven J. Brinkman, Kim Jacobsen
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Publication number: 20140018716Abstract: A method (400) of manufacturing a wound dressing is disclosed that includes obtaining alginate fibers (108) and the step (404) of spraying either the alginate fibers (108) or a dressing or dressing layer (610) of the alginate fibers with an aqueous solution (801) comprising a polysaccharide, which can be carboxymethylcellulose. The step of spraying can occur while the alginate fibers, dressing, or dressing layer are wet. A step (405) of flash drying can follow to remove the solute of the aqueous solution to leave the polysaccharide along the alginate. The step of spraying can be selective, such that only portions of the dressing layer include the polysaccharide.Type: ApplicationFiled: July 16, 2012Publication date: January 16, 2014Inventor: Debashish Chakravarthy
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Patent number: 8624077Abstract: The invention relates to a wound dressing and methods of preparation and use thereof for promoting healing of a wound bed. In particular, the wound dressing is advantageous for application to a debrided wound bed. The wound dressing comprises an open conduit polymeric foam matrix, and a hydrophilic polymer which is disposed in dry form on the inner surfaces of the conduits within the matrix.Type: GrantFiled: October 1, 2009Date of Patent: January 7, 2014Assignee: L.R.R.&D. Ltd.Inventor: Lior Rosenberg
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Patent number: 8609130Abstract: 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: GrantFiled: September 14, 2012Date of Patent: December 17, 2013Assignees: The University of North Carolina at Chapel Hill, Entegrion, Inc.Inventors: Thomas H. Fischer, E. Stan Eskridge, Jr., William M. Malloy, Jr., Malloy Evans
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Publication number: 20130317406Abstract: Dressings, systems, and methods for treating a tissue site on a patient involve allowing liquids from the tissue site or a priming fluid to evaporate and exit the dressing through a liquid-impermeable, vapor-permeable membrane. The dressing is able to process more liquids than would otherwise be possible without evaporation and potentially to create reduced pressure. Other dressings, systems, and methods are disclosed.Type: ApplicationFiled: April 14, 2011Publication date: November 28, 2013Inventors: Christopher Brian Locke, Timothy Mark Robinson, Aidan Marcus Tout
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Publication number: 20130310725Abstract: The invention provides a uniquely designed band-aid that is pain free upon removal from skin surface by featuring gauze in between the top part of the strap and the bottom layer of the Punctured adhesive surrounded by a breakable tubing filled with alcohol or other liquid. The device provides a band-aid capable of being easily removed from the skin by saturating the adhesive prior to removal, thereby inflicting no pain on the user.Type: ApplicationFiled: April 25, 2013Publication date: November 21, 2013Inventors: Richard L. Jerrells, Sandy R. Jerrells
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Patent number: 8581017Abstract: A wound dressing comprising an absorbent pad, an adhesive layer, and a backing layer is described, along with a dressing support layer configured to retain and deliver the wound dressing to a wound, the dressing support layer having a radial configuration that forms a plurality of alternating covered and uncovered portions of the backing layer along the perimeter of the wound dressing.Type: GrantFiled: October 19, 2009Date of Patent: November 12, 2013Assignee: 3M Innovative Properties CompanyInventors: David R. Holm, Richard L. Jacobson