Perforated Patents (Class 602/47)
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Patent number: 8680360Abstract: 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: GrantFiled: September 26, 2007Date of Patent: March 25, 2014Assignee: Smith & Nephew Inc.Inventors: Bryan Greener, Allan Freedline
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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: 20140058309Abstract: A method of making a wound dressing comprising the steps of: providing an apertured substrate layer; coating the substrate layer with a fluid silicone prepolymer composition; thermally partially curing said silicone prepolymer composition to form a partially cured silicone coating on the substrate; laminating the coated substrate layer to a base layer to form a laminate having said partially cured silicone coating in contact with a surface of the base layer; followed by exposing the laminate to ionizing radiation, to further cure the partially cured silicone coating and to bond the silicone coating to said surface of the base layer. The radiation cure results in strong bonding between the siliconized substrate and incompatible base layers such as polyurethane foams. Also provided are wound dressings obtainable by the process of the invention.Type: ApplicationFiled: January 31, 2012Publication date: February 27, 2014Inventors: Deborah Addison, Sally Stephens, Patrick Joseph Brosnan
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Patent number: 8658851Abstract: Methods and compositions provide suitable support material for culturing cells with a desirable metabolic activity. For example, keratinocytes directly grown on flexible supports show metabolic activity. Therapeutic methods and compositions, including wound healing technologies, using the cells grown on flexible supports, wherein the cells exhibit increased metabolic activity are disclosed.Type: GrantFiled: October 22, 2007Date of Patent: February 25, 2014Assignee: Keracure, Inc.Inventors: John Dahlquist, Susan Schaeffer
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Patent number: 8603053Abstract: The invention relates to a liquid-permeable primary dressing in the form of a supple thermoplastic section of material (1.4), comprising: a first smooth surface (4); a second surface (5) facing away from the smooth surface (4); and a plurality of three-dimensional perforations, whose walls extend from the first smooth surface (4) and end in an overhang with a free edge, thus making the second surface (5) rough to the touch. At least one of the free edges has an angled section that is approximately perpendicular to a perforation axis. In a preferred embodiment, the periphery (13) of the material section is smooth on both sides, i.e. on both the first and second surfaces (4; 5), the periphery (13) of the surface (5) that was at first rough being thermally smoothed.Type: GrantFiled: April 11, 2007Date of Patent: December 10, 2013Inventor: Birgit Riesinger
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Publication number: 20130281905Abstract: A surgical interface for a wound, obtained from a composition including a hydrophobic matrix comprising A parts of a triblock elastomer, B parts of a plasticiser, C parts of polyeolefin, and optionally a hydrocolloid dispersed in a proportion containing 0 to 30% of the total weight of the hydrophobic matrix, with the following relations: A=100 300<B<500 10<C<50 9%<C/(A+C)<33.5% 1.5%<C/(A+B+C)<9% 83%>B/(A+B)>75% in which the interface composition is arranged in a thin layer on a protective support, distributed with through-holes produced in the interface arranged on the protective support, in which the interface is removed from its protective support in order to be used, and has sufficient cohesion for application to a wound.Type: ApplicationFiled: January 16, 2013Publication date: October 24, 2013Inventors: Maud STAEGER WILLIAMS, Alain GUILLEMET
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Publication number: 20130195931Abstract: An antimicrobial composite which comprises a first, liquid-permeable layer which is substantially completely bonded to a second liquid-absorbing layer. The first layer comprises a coating of at least one antimicrobial metal as such on the side which is bonded to the second layer. Substantially no antimicrobial metal in elemental form is present on exterior surfaces of the composite.Type: ApplicationFiled: January 23, 2013Publication date: August 1, 2013Inventors: Peter HILFENHAUS, Heike JOHN, Harald BUETTNER
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Patent number: 8460699Abstract: 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: August 23, 2012Date of Patent: June 11, 2013Assignee: Z-Medica, LLCInventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
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Patent number: 8410331Abstract: An absorbent structure comprising a silicone foam having pore walls and a plurality of hydrophilic particles anchored to the pore walls of the foam. Some of the hydrophilic particles have an anchored portion firmly anchored to the pore walls and an exposed portion extending outwardly away from the pore walls upon which the anchored portion is secured.Type: GrantFiled: September 21, 2011Date of Patent: April 2, 2013Assignee: Ossur HFInventors: Hilmar Janusson, Palmar I. Gudnason
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Patent number: 8376972Abstract: A wound treatment device comprises a wound surface contacting plug (10) and a cover (24) for covering the wound surface (22) and the plug (10), wherein said plug (10) consists of a flat textile isolating material comprising at least one first surface layer (12), one second surface layer (14) and one intermediate space (18) arranged between said surface layers (12, 14). At least the first surface layer (12) is provided with a biocompatible surface and a structure which enables a liquid to pass and prevents a wound tissue from growing in said structure. The intermediate space (18) is provided with isolating threads (16) elastically holding the first surface layer (12) and the second surface layer at a certain distance from each other.Type: GrantFiled: November 25, 2005Date of Patent: February 19, 2013Inventor: Wilhelm Fleischmann
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Publication number: 20130012858Abstract: Devices, kits and methods described herein may be for treatment to skin, including but not limited to wound healing, the treatment, amelioration, and/or prevention of scars or keloids. A book-like packaging, applicator and/or tensioning device may be used to apply a dressing to a subject. The packaging, applicator and/or tensioning device may apply and/or maintain a strain in an elastic dressing.Type: ApplicationFiled: January 6, 2012Publication date: January 10, 2013Applicant: Neodyne Biosciences, Inc,Inventors: Jasper Jackson, John A. Zepeda, Adam French, Darren G. Doud, Geoffrey C. Gurtner, Brett A. Follmer, William R. Beasley, Paul G. Yock, Keiichiro Ichiryu, Manuel A. Cardona Pamplona, Tor C. Krog, Kemal Levi
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Patent number: 8343537Abstract: A hemostatic device for promoting the dotting 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: January 31, 2012Date of Patent: January 1, 2013Assignee: Z-Medica, LLCInventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
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Patent number: 8308705Abstract: An apparatus for fluid collection is disclosed, which comprises: a frame, composed of a plurality of unit cells, each being made of an absorbent polymer composite; and a bag, for receiving the frame while being connected to a conduit provided for enabling a fluid to flow in and out the bag therethrough.Type: GrantFiled: June 22, 2009Date of Patent: November 13, 2012Assignee: Industrial Technology Research InstituteInventors: Zhan-Sheng Lin, Nan-Kuang Yao
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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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Publication number: 20120220912Abstract: A foreskin patch and a fixator for use in circumcision surgery. The foreskin patch (1) is in the form of an elongated strip, having an adhesive surface (11) on one side, and a ventilation structure (12). The ventilation structure comprises a plurality of breather holes or a breathable mesh. The fixator (2) comprises an annular sleeve, which has an accommodation space (21) to accommodate a penis. A plurality of fixing pins (22) are provided on the outer surface of the fixator. The fixing pins are needle-like structures vertically located on the outer surface of the fixator. The fixator is integrally formed from materials absorbable by human body.Type: ApplicationFiled: October 25, 2010Publication date: August 30, 2012Inventor: Jianzhong Shang
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Patent number: 8247634Abstract: A custom fabricated (e.g. custom shaped and dimensioned) primary wound dressing part that matches a corresponding, pre-mapped integumentary wound is combined with dressing extension parts to form a composite wound dressing system. The primary wound dressing part may include one or more liquid flow barriers composed for example of a hydrophobic and high viscosity liquid embedded in a layer of the primary wound dressing part. The dressing extension parts may include interconnect portals for operatively interconnecting with the primary wound dressing part so that liquids may be securely moved between primary wound dressing part and the extension parts.Type: GrantFiled: August 22, 2008Date of Patent: August 21, 2012Assignee: PolyRemedy, Inc.Inventor: Oleg Siniaguine
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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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Patent number: 8148596Abstract: A wound treatment apparatus is disclosed, which comprises: a first portion, a second portion and a porous matrix. In an exemplary embodiment of the invention, the first portion, being an adhesive film, is formed with at least a first hole; and the second portion, being made of a flexible, water-resistant material, is formed with at least a second hole and at least a third hole in a manner that the at least one second hole and the at least one third hole are capable of communicating with each other and thus causes an accommodation space to be formed inside the second portion while the at least one second hole is arranged at a position corresponding to the at least one first hole as the second portion is connected to the first portion. Moreover, the porous matrix is received inside the accommodation space of the second portion.Type: GrantFiled: July 3, 2009Date of Patent: April 3, 2012Assignee: Industrial Technology Research InstituteInventors: Luo-Hwa Miau, Jhy-Wen Wu, Nan-Kuang Yao
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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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Patent number: 8093445Abstract: A wound dressing defines bodyside and backside surfaces. The dressing comprises a backing layer defining a center portion and a border portion surrounding the center portion. An absorbent core is connected to a surface of the backing layer within the center portion The absorbent core may be exposed along a bodyside surface of the wound dressing, or various adhesives and non-adhesive substrates may be applied along a surface of the absorbent core so as to define part of the bodyside surface of the wound dressing.Type: GrantFiled: October 28, 2008Date of Patent: January 10, 2012Assignee: Ossur HFInventors: Gudmundur Fertram Sigurjonsson, Thordur Elefsen, Palmar Gudnason
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Patent number: 8084663Abstract: A wound dressing having a suction member adaptable for connection to a source of vacuum pressure. The wound dressing preferably has a hydrophobic or biodegradable base layer and one or more absorptive layers for absorbing fluid from the wound. The absorptive layers are preferably quilted with patches containing desiccant, adsorbent, or absorbent material. Alternatively, the wound dressing may allow fluid to pass through the suction member. A semi-permeable cover is provided for allowing the wound to breathe while protecting the wound from undesirable substances such as bacteria, viruses, or fluids. The cover may have a bladder for distributing contact pressure away from the wound. Various sensors may be provided in the wound dressing for sensing various physiological parameters in the wound, such as oxygen saturation, blood pressure, respiratory rate, blood glucose, and serous fluid turbidity. Medicine may also be applied to the wound through the wound dressing.Type: GrantFiled: July 21, 2010Date of Patent: December 27, 2011Assignee: KCI Licensing, Inc.Inventor: Richard L. Watson, Jr.
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Patent number: 8049059Abstract: A tissue graft product includes at least one collagen layer comprised of submucosa or renal capsule tissue having slits therein to provide a mesh pattern which in turn establishes a graft structure that is highly deformable. The slits and mesh pattern provide for improved characteristics when utilized as a tissue graft and in particular an external wound care. Preferred devices have multiple submucosa, renal capsule or other collagenous extracellular matrix layers, providing a substantial and lasting scaffold for tissue ingrowth during wound treatment.Type: GrantFiled: October 25, 2002Date of Patent: November 1, 2011Assignee: Cook Biotech IncorporatedInventors: Mark W. Bleyer, Umesh H. Patel
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Patent number: 8026406Abstract: An absorbent structure comprising a silicone foam having pore walls and a plurality of hydrophilic particles anchored to the pore walls of the foam. Some of the hydrophilic particles have an anchored portion firmly anchored to the pore walls and an exposed portion extending outwardly away from the pore walls upon which the anchored portion is secured.Type: GrantFiled: November 2, 2010Date of Patent: September 27, 2011Assignee: Ossur HFInventors: Hilmar Janusson, Palmar I. Gudnason
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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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Patent number: 8008538Abstract: The present invention relates to an implantable, disposable barrier disc to be used in negative pressure treatment of wounds, in particular sternotomy wounds, wherein the barrier disc consists of a rigid material withstanding a negative pressure of at least ?50 mmHg without causing deformation to the barrier disc, and that the barrier disc is perforated to allow drainage of wound fluid through said barrier disc.Type: GrantFiled: May 14, 2007Date of Patent: August 30, 2011Assignee: Forskarpatent I Syd ABInventors: Martin Ugander, Malin Malmsjö
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Patent number: 7982087Abstract: A wound dressing includes a substantially transparent upper layer, an absorbent layer comprising a plurality of apertures arranged in a lattice pattern, and a low-adherent wound contact layer provided with a plurality of apertures arranged in a lattice pattern such the apertures of this layer are congruent with the apertures of the absorbent layer.Type: GrantFiled: January 9, 2009Date of Patent: July 19, 2011Assignee: Smith & Nephew, Inc.Inventors: Bryan Greener, Allan Freedline
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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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Patent number: 7951443Abstract: A taping tape includes: a base material 12 having elasticity; an adhesive layer attached to one side of the base material 12; and plural slits 14 that are formed along one direction on an inner side of the base material 12 and are arranged parallel to each other. Both side edge portions 12a and 12b of the base material 12 in the vicinities of end portions of the slits 14 are formed obliquely to each other towards a longitudinal direction center of the base material 12 from the vicinities of the end portions of the slits 14 to base material end portions 12c and 12d positioned on extensions of the slits 14. The end portions of the slits 14 curve towards the center of the base material 12 along the side edge portions 12a and 12b.Type: GrantFiled: May 24, 2006Date of Patent: May 31, 2011Assignee: Esaki Medical Instrument Co., Ltd.Inventor: Kenzo Esaki
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Patent number: 7943811Abstract: An adhesive bandage having a support layer with a first surface facing the skin of the user and which defines a first surface area, at least one first composite layer having an adhesive element applied to the first surface and substantially covering the whole of the first surface area, and at least one multi-layer system associated to at least a section of the first composite layer. The multi-layer system includes at least one permeable polymeric film layer and at least one second composite layer having at least one adhesive element and at least one hydrocolloidal element. The multi-layer system is associated to the first composite layer via the second composite layer or the permeable polymeric film layer.Type: GrantFiled: October 24, 2007Date of Patent: May 17, 2011Assignee: Johnson & Johnson Industrial Ltda.Inventor: Carlos Da Silva Macedo, Jr.
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Publication number: 20110071448Abstract: A liquid impermeable material comprising a layer of vapour permeable viscoelastic polymer gel, applications of said material, a composite material comprising said material and a method of producing said material.Type: ApplicationFiled: June 24, 2005Publication date: March 24, 2011Inventor: Ezio Margiotta
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Patent number: 7888546Abstract: An adhesive device used as a wound dressing, ingredient delivery device or IV hold-down in which inadvertent edge release of these devices along the periphery of the polymeric film layer is minimized when the handling layer, which is adhered to the polymeric film layer, is removed after application of the polymeric film layer to the patient.Type: GrantFiled: July 2, 2004Date of Patent: February 15, 2011Assignee: Corium International, Inc.Inventors: Michael G. Marcoux, David R. Johnson, Steven R. Klemm
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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: 20110021964Abstract: The present invention relates to a matrix material comprising a pharmaceutical composition such as a matrix material with a pharmaceutical composition printed on the surface. In one embodiment the pharmaceutical composition comprises thrombin. The invention further describes a method for making the matrix material with a pharmaceutical composition printed on the surface. In one specific embodiment the invention also relates to the use of said matrix material for promotion of hemostasis and/or wound healing. The invention also relates to a kit-of-parts comprising a matrix with a pharmaceutical composition and a container with a peelable lid.Type: ApplicationFiled: February 27, 2009Publication date: January 27, 2011Applicant: Ferrosan Medical Devices A/SInventors: Kristian Larsen, Mads Sabra
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Patent number: 7842848Abstract: An absorbent structure comprising a silicone foam having pore walls and a plurality of hydrophilic particles anchored to the pore walls of the foam. Some of the hydrophilic particles have an anchored portion firmly anchored to the pore walls and an exposed portion extending outwardly away from the pore walls upon which the anchored portion is secured.Type: GrantFiled: November 8, 2007Date of Patent: November 30, 2010Assignee: Ossur HFInventors: Hilmar Janusson, Palmar Gudnason
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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: 7790945Abstract: A wound dressing having a suction member adaptable for connection to a source of vacuum pressure. The wound dressing preferably has a hydrophobic or biodegradable base layer and one or more absorptive layers for absorbing fluid from the wound. The absorptive layers are preferably quilted with patches containing desiccant, adsorbent, or absorbent material. Alternatively, the wound dressing may allow fluid to pass through the suction member. A semi-permeable cover is provided for allowing the wound to breathe while protecting the wound from undesirable substances such as bacteria, viruses, or fluids. The cover may have a bladder for distributing contact pressure away from the wound. Various sensors may be provided in the wound dressing for sensing various physiological parameters in the wound, such as oxygen saturation, blood pressure, respiratory rate, blood glucose, and serous fluid turbidity. Medicine may also be applied to the wound through the wound dressing.Type: GrantFiled: April 5, 2004Date of Patent: September 7, 2010Assignee: KCI Licensing, Inc.Inventor: Richard L. Watson, Jr.
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Patent number: 7767291Abstract: Hydrocolloid-containing pressure-sensitive adhesive compositions for medical use are disclosed which contain networks of fibrillated polymeric fibers that have surface areas of at least 4 square meters per gram and which have superior properties of low cold flow and high cohesive strength.Type: GrantFiled: March 16, 2007Date of Patent: August 3, 2010Assignee: Hollister IncorporatedInventor: Michael G. Taylor
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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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Publication number: 20100152639Abstract: A wound treatment apparatus is disclosed, which comprises: a first portion, a second portion and a porous matrix. In an exemplary embodiment of the invention, the first portion, being an adhesive film, is formed with at least a first hole; and the second portion, being made of a flexible, water-resistant material, is formed with at least a second hole and at least a third hole in a manner that the at least one second hole and the at least one third hole are capable of communicating with each other and thus causes an accommodation space to be formed inside the second portion while the at least one second hole is arranged at a position corresponding to the at least one first hole as the second portion is connected to the first portion. Moreover, the porous matrix is received inside the accommodation space of the second portion.Type: ApplicationFiled: July 3, 2009Publication date: June 17, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: LUO-HWA MIAU, JHY-WEN WU, NAN-KUANG YAO
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Publication number: 20100106117Abstract: Wound treatment apparatuses comprising a vacuum source and a bandage (e.g., a wound-care bandage) configured to be coupled (and/or coupled) to the vacuum source. Some embodiments of the bandage including a wound dressing member configured to be placed in contact with a wound surface, and a suction port associated with the wound dressing member and/or configured to be connected to the vacuum source. Some embodiments of the member including a plurality of spacers configured to contact the wound surface to define suction space between the member and the wound surface. Some embodiments of the member including holes configured to communicate with the suction space, and/or a plurality of passageways between the suction port and the holes.Type: ApplicationFiled: November 13, 2009Publication date: April 29, 2010Applicant: KCI MEDICAL RESOURCESInventors: Jeffrey S. Lockwood, Robert Petrosenko, James Robert Risk, JR.
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Publication number: 20100076363Abstract: A surgical interface for a wound, obtained from a composition including a hydrophobic matrix comprising A parts of a triblock elastomer, B parts of a plasticiser, C parts of polyeolefin, and optionally a hydrocolloid dispersed in a proportion containing 0 to 30% of the total weight of the hydrophobic matrix, with the following relations: A=100 300<B<500 10<C<50 9%<C/(A+C)<33.5% 1.5%<C/(A+B+C)<9% 83%>B/(A+B)>75% in which the interface composition is arranged in a thin layer on a protective support, distributed with through-holes produced in the interface arranged on the protective support, in which the interface is removed from its protective support in order to be used, and has sufficient cohesion for application to a wound.Type: ApplicationFiled: September 22, 2009Publication date: March 25, 2010Inventors: Maud STAEGER WILLIAMS, Alain GUILLEMET
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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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Patent number: 7626071Abstract: A hospital type of bandage integrates an absorbent pad and non-stick layer with a fluid-impermeable outer layer and an adhesive in a single composite structure. In a preferred embodiment the invention further includes means which may be used to turn the bandage inside out upon removal, so that surfaces once contacting a patient are no longer externally exposed. A bandage according to the invertible embodiment preferably includes a pocket formed on the side of the bandage facing away from the patient after application, this pocket being large enough to accommodate at least a portion of a human hand, and inside this pocket and located opposite the entrance is a means for grasping which may be pulled outwardly through pocket opening, thereby inverting the entire structure. Various forms of devices for grasping are possible as alternatives, including a string, a tab and a tab with one or more finger-receiving holes.Type: GrantFiled: November 12, 2003Date of Patent: December 1, 2009Inventor: Michael Masini
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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: 20090177051Abstract: Thus, systems and methods providing sub-dressing wound analysis and therapy are provided. One embodiment of the invention may include a treatment system including a wound dressing comprising perforations. The system may also include a light receptor and an excitation light source. When the wound dressing is deployed on a wound, the light source may provide light that propagates through the wound and is detectable via the perforations. Furthermore, the light receptor may be configured to receive the transmitted light. The transmitted light may include information relating to the viability of tissue within the wound.Type: ApplicationFiled: January 7, 2009Publication date: July 9, 2009Applicant: Heal-Ex, LLCInventors: Edward M. Arons, Joel Weiss
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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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Patent number: 7531711Abstract: A wound dressing defining skin facing areas having different degrees of skin adherence. The dressing comprises a backing layer defining a center portion and a border portion surrounding the center portion. An absorbent core is connected to a surface of the backing layer within the center portion. The absorbent core may be exposed along a proximal surface of the wound dressing, or various adhesives and non-adhesive substrates may be applied along a proximal surface of the absorbent core.Type: GrantFiled: May 25, 2005Date of Patent: May 12, 2009Assignee: Ossur hfInventors: Gudmundur Fertram Sigurjonsson, Thordur Elefsen, Palmar Gudnason
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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