Absorbent Patents (Class 602/56)
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Patent number: 11957547Abstract: A medical dressing is provided. The dressing has a central portion and a border portion, and comprises a backing layer, an adhesive body contact layer and a pad arranged in the central portion between the backing layer and the adhesive body contact layer. The pad is symmetric about a longitudinal center line and the dressing comprises a lobed portion on each side of the center line. The central portion of the dressing has a tensile strength in the longitudinal (y) direction of at least 60 N, preferably at least 70 N at an elongation of 25%, as measured by the test method ASTM D 882-12. The medical dressing may be used for pressure ulcer prevention, such as at the sacrum region of a human body.Type: GrantFiled: June 14, 2017Date of Patent: April 16, 2024Assignee: MÖLNLYCKE HEALTH CARE ABInventors: Patrick Rodzewicz, Jenny Flach, Maria Gustin Bergström, Karin Östan, Sandra Tillman, Angelica Andresen, Anita Haraldsson Hedbratt
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Patent number: 11786409Abstract: Described are wound pads for use, e.g., as cavity wound fillers, having shapes with rounded corners, the projection on an X-Y plane of at least one corner having a curvature distinct from that of the projection of the other corners. Negative pressure systems and kits that includes such wound pads, and methods of using such wound pads are also described.Type: GrantFiled: March 31, 2014Date of Patent: October 17, 2023Assignee: Mölnlycke Health Care ABInventors: Kalle Jon Nordbo, Jerker Gröndahl, Esbjörn Olsson, Bengt Olof Sebastian Engwall
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Patent number: 11771798Abstract: An ostomy device has a switchable adhesive layer located between a backing layer and an absorbent adhesive layer. The switchable adhesive layer has a photoinitiator reactive to visible light and the absorbent adhesive layer is a skin-facing layer having absorbent particles.Type: GrantFiled: June 25, 2021Date of Patent: October 3, 2023Assignee: Coloplast A/SInventors: Esben Stroebech, Michael Hansen
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Patent number: 11684588Abstract: The present invention relates to a multilayer composite material for the treatment of wounds and lesions and to a dressing comprising said multilayer material.Type: GrantFiled: February 26, 2019Date of Patent: June 27, 2023Assignee: FIDIA FARMACEUTICI S.P.A.Inventors: Giovanni Gennari, Monica Campisi, Anna Maria Zanellato
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Patent number: 11510444Abstract: An anti-fog apparatus utilized with a facial mask or covering operably configured to inhibit the escape of exhaled vapor from the upper edge of facial coverings so as to prevent the accumulation of fog or condensation on a user's eyeglasses when wearing a face mask, the anti-fog strip comprising or used in conjunction with a cloth-based body and having an inner strip layer of a flexible material, with an outer surface adhesively coupled to the inner body surface, and with an inner surface opposing the outer surface of the inner strip layer; and an outer strip layer of a flexible polymeric foam material, with an inner surface adhesively coupled to the inner surface of the inner strip layer, and with an outer surface opposing the inner surface of the inner strip layer, wherein the outer strip layer is operably configured to elastically deform and contour to a user's nasal bridge.Type: GrantFiled: August 20, 2021Date of Patent: November 29, 2022Inventor: Scott Weiser
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Patent number: 11419767Abstract: Certain embodiments described herein are directed to an elongated layer of material and a lip to be placed in contact with a wound and the elongated layer of material to be wrapped around a wound filler, their methods of use and systems incorporating the same, wherein the wound filler lip is configured to be positioned beneath the fascia. Additionally, some embodiments described herein are directed to the closure of the wound and the use of attachment mechanisms on the elongate layer and lip to attach to the wound surface.Type: GrantFiled: October 31, 2018Date of Patent: August 23, 2022Assignees: University of Massachusetts, Smith and Nephew, Inc.Inventors: Raymond M. Dunn, Edward Yerbury Hartwell, John Kenneth Hicks, Elizabeth Mary Huddleston, Carl Saxby
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Patent number: 11154438Abstract: An absorbent article has a longitudinal direction, a transverse direction and a thickness direction, and includes a fluid permeable topsheet, a fluid impermeable backsheet and an absorbent core enclosed between the topsheet and the backsheet having, in the longitudinal direction, a front section, a rear section and a crotch section between the front section and the rear section. The absorbent core has two longitudinally extending side regions being spaced apart in the transversal direction by at least one longitudinally extending channel region. The channel region is of less basis weight than the side regions.Type: GrantFiled: October 20, 2015Date of Patent: October 26, 2021Assignee: ESSITY HYGIENE AND HEALTH AKTIEBOLAGInventors: Prelo M. Hood, Paul Coomes, Mariela Biber, Peter Kacenak
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Patent number: 11077224Abstract: Disclosed is an ostomy device with an adhesive wafer for attachment to a skin surface (S) of a user and a collecting bag (8) or collecting output from a stoma. The collecting bag is connected to the adhesive wafer, and the adhesive wafer has a through-going hole (6) for accommodating the stoma (7) of the user. The adhesive wafer includes a backing layer (3), a first switchable adhesive composition (2), a second absorbent adhesive composition (1), and a release liner, and the second adhesive layer has a central portion with a first thickness and an edge portion with a second thickness, the first thickness being larger than the second thickness.Type: GrantFiled: February 2, 2016Date of Patent: August 3, 2021Assignee: Coloplast A/SInventors: Esben Stroebech, Michael Hansen
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Patent number: 10449082Abstract: Disclosed herein are methods and devices for coupling and securing a medical device appliance. In particular, one piece moldable adhesive structures are disclosed which allow customization of an attachment wafer to the size and shape of, for example, a stoma, while allowing flexibility and security for attaching a medical device, such as an ostomy pouch or other device to the subject.Type: GrantFiled: May 23, 2014Date of Patent: October 22, 2019Assignee: CONVATEC TECHNOLOGIES INC.Inventor: Kenneth Johnsen
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Patent number: 10434090Abstract: A pharmaceutical composition for induction therapy which has a hypomethylating agent and a histone deacetylase inhibitor (“HDAC inhibitor”); wherein the hypomethylating agent is a DNA and histone methylation inhibitor such as cladribine and the HDAC inhibitor is, for example, entinostat, panobinostat, vorinostat, and/or romedepsin; further wherein the hypomethylating agent and the HDAC inhibitor are combined in formulations for various administrations including e.g., a continuous delivery system such as a transdermal patch of at least one reservoir or a plurality of reservoirs, oral, a fixed-dose oral combination, intravenous, and combinations thereof. This pharmaceutical composition for induction therapy is used with a monoclonal antibody in the treatment of various cancers, sarcomas, and other malignancies.Type: GrantFiled: April 30, 2010Date of Patent: October 8, 2019Assignee: NIMBLE EPITECH, LLCInventors: Elliot M. Epner, Luke M. Vaughan
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Patent number: 10201456Abstract: One subject of the present invention is a dressing essentially consisting of: an absorbent nonwoven compress formed from a mixture: of bicomponent thermal bonding non-absorbent fibers, of core-shell type, said core being made of polyester (polyethylene terephthalate, PET) and the shell being made of polyethylene; of bicomponent superabsorbent fibers of core-shell type with a core made of polyacrylonitrile and a shell made of polyacrylate; and a net fabric made from a hydrocolloid elastomer mass partially covering the face of the compress intended to come into contact with the wound. This product is especially intended to promote the healing of chronic wounds by optimizing the debridement.Type: GrantFiled: March 29, 2012Date of Patent: February 12, 2019Assignee: URGO RECHERCHE INNOVATION ET DEVELOPPEMENTInventors: Jean-Marc Pernot, Stephane Auguste, Christelle Laurensou
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Patent number: 9973866Abstract: Embodiments presented herein are generally directed to a coupling arrangement for securing an external component to a recipient of an implantable medical device. The coupling arrangement is configured to magnetically couple the external component to a recipient so as to minimize damage to tissue of the recipient adjacent to the coupling arrangement.Type: GrantFiled: October 26, 2016Date of Patent: May 15, 2018Assignee: Cochlear LimitedInventors: Göran Björn, Henrik Fyrlund, Stefan Magnander
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Patent number: 9724227Abstract: Disclosed is abase plate 1 for an ostomy collection device, comprising a cover layer 2 whereon an adhesive layer 3 is at least partly disposed. Immediately surrounding a through-going hole 6, the base plate has an inner area wherein the cover layer extends beyond the adhesive layer in a radial direction toward the through-going hole, thereby providing an overlap 7 protecting the adhesive material from contact with stomal output.Type: GrantFiled: October 20, 2011Date of Patent: August 8, 2017Assignee: Coloplast A/SInventors: Michael Hansen, Dorrit Diana Israelson, Henrik Edvardsen
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Patent number: 9623223Abstract: Provided herein are self-expanding wound dressings that include a first outer layer, a second outer layer, and a liquid-expandable layer disposed between the first outer layer and the second outer layer, wherein the liquid-expandable layer includes a plurality of liquid-expandable articles retained by a substrate, wherein the plurality of liquid-expandable articles expand to form expanded articles upon contact with a liquid. Also provided is a method of treating an individual having a bleeding wound, the method including applying a self-expanding wound dressing to the wound. Also provided are methods of manufacturing a wound dressing, the methods including forming an absorbent material into a plurality of liquid-expandable articles, coupling the plurality of liquid-expandable articles to a substrate to form a liquid-expandable layer, and positioning the liquid-expandable layer between a first outer layer and a second outer layer to form the wound dressing.Type: GrantFiled: January 24, 2014Date of Patent: April 18, 2017Assignee: REVMEDX, Inc.Inventors: John Steinbaugh, Mary Bullard, Andrew Barofsky
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Patent number: 9561034Abstract: An apparatus for closing a surgical incision comprises left and right base panels, a plurality of closure components, and a plurality of left and right axial supports coupled to the respective base panels. The closure components couple the left and right base panels to each other laterally and have left and right ends coupled to the respective base panels. The closure components are positioned laterally across the left and right panels, the left axial supports are disposed between pairs of left closure component ends, the right axial supports are disposed between pairs of right closure component ends, and the left and right axial supports are offset from one another such that a serpentine arrangement of consecutive closure components and axial supports is formed. The apparatus can be made of antimicrobial materials or materials impregnated with antimicrobial agents. A flexible adhesive cover can be provided over the apparatus when in use.Type: GrantFiled: April 15, 2016Date of Patent: February 7, 2017Assignee: Zipline Medical, Inc.Inventors: Amir Belson, Eric Storne, Alan Schaer, Pankaj Rathi, Keiichiro Ichiryu, Peter D'Aquanni, Luke Clauson, Chris Feezor
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Patent number: 9453148Abstract: A composition having three components. The first component is from 20 to 80 wt % of a styrene-diene block copolymer having from 10-30 wt % polymerized units of styrene, wherein the block copolymer is present as a dispersion of copolymer in water, and the dispersion contains less than 5 wt % organic solvent based on total dispersion weight. The second component is from 0.5 to 20 wt % of a plasticizer. The third component is from 20 to 80 wt % of a tackifier.Type: GrantFiled: December 2, 2013Date of Patent: September 27, 2016Assignees: Dow Global Technologies LLC, Rohm and Haas CompanyInventors: Melinda L. Einsla, William B. Griffith, Jr., Daniel W. Himmelberger, Melissa Lane, David L. Malotky
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Patent number: 9012529Abstract: A hot-melt formulation useful as a wound dressing comprises a chemically crosslinked polymer matrix obtainable from prepolymers crosslinkable by means of photopolymerization. Hydrocolloids are embedded in the chemically crosslinked polymer, matrix. The formulation is obtainable by combining the prepolymers and hydrocolloids, and heating and processing the mixture through a slot die, wherein the mixture has a viscosity of less than 100 Pa*s and a processing temperature of less than 150° C. The prepolymers are crosslinked by means of photopolymerization by irradiation with UV light.Type: GrantFiled: June 22, 2005Date of Patent: April 21, 2015Assignee: Nolax AGInventors: Pia Frei, Andreas Dobmann, Judith Nyffeler
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Publication number: 20150045711Abstract: Provided are buffered adhesive compositions comprising a high molecular weight non-neutralized polymeric acid and a high molecular weight partially neutralized polymeric acid and products such as wound dressings, ostomy skin barriers, and ostomy barrier rings incorporating the compositions.Type: ApplicationFiled: August 20, 2014Publication date: February 12, 2015Applicant: HOLLISTER INCORPORATEDInventors: Michael Gerard Taylor, Richard Iwao Murahata
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Publication number: 20140316324Abstract: A fluid absorbing pressure sensitive adhesive composition and adhesive articles including the fluid absorbing adhesive that have particular utility in the medical field, and in particular, for use with wound dressings is provided. The adhesive composition has superior fluid handling capacity, moisture vapor transmission and skin adhesion. Also described are dressings, cover drapes, and/or sealing components for negative pressure wound therapy applications. The articles include a thin film having a layer of a breathable hydrocolloid adhesive. When used in negative pressure wound therapy applications, the articles are breathable and fluid absorbing.Type: ApplicationFiled: November 9, 2012Publication date: October 23, 2014Applicant: Avery Dennison CorporationInventors: Anne Marie Wibaux, Vicky Van De Pol, Honorina Repriels
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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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Publication number: 20140243728Abstract: A wound dressing comprising an adhesive layer having a skin-facing surface and a non-skin-facing surface, the non-skin-facing surface being provided with a backing layer, the dressing comprises a central portion comprising an absorbent adhesive, and an border portion surrounding the central portion, wherein the skin facing surface of edge portion of the adhesive layer is continuous and the skin facing surface of central portion is interrupted by interconnected cavities. The cavities provide a storage room and distribution centre for wound exudates enabling the dressing to be applied to fast exuding wounds.Type: ApplicationFiled: September 28, 2012Publication date: August 28, 2014Applicant: Coloplast A/SInventors: Henning Igwebuike, Grazyna Hansen, Jan Marcussen
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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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Patent number: 8690841Abstract: An improved wound care system is set forth. The system includes a wound care device having a first end and a second end. A fastener, adapted to extend to a desired length to selectively attach the device at an anchor, wherein the anchor is provided on a second end of the device is also provided. The fastener is sufficiently sized and formed of a suitable material to prevent the device from moving when secured to the anchor. In an embodiment, medicine is provided in a desired treatment area of the device. The medicine can be inserted via a medicinal delivery device by inserting the medicinal delivery device up to a stop on the medicinal delivery device into the wound care device.Type: GrantFiled: July 9, 2010Date of Patent: April 8, 2014Inventor: R. Gary Diaz
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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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Patent number: 8632512Abstract: According to an illustrative embodiment a method to promote healing of a wound is provided comprising contacting the wound with a biologically active composition comprising a lipoic acid derivative and gelatin. In another embodiment a wound dressing is provided comprising a scaffold coated with a biologically active composition comprising a lipoic acid derivative. In a further embodiment, a system is provided for treating a tissue site of a patient, the system comprising a reduced-pressure source to supply reduced pressure, a manifold to distribute reduced pressure to a tissue site and a scaffold coated with a biologically active composition comprising a lipoic acid derivative. Methods for producing such a system and scaffold are also disclosed.Type: GrantFiled: April 9, 2010Date of Patent: January 21, 2014Assignee: KCI Licensing, Inc.Inventors: Dmitry Zimnitsky, Jenny Finkbiner, Blane Sanders
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Patent number: 8563800Abstract: A sacral wound dressing having a bottom end with three substantially V-shaped projections. In use, a protective layer of the wound dressing is removed to expose an adhesive layer and an absorbent layer, the wound dressing is folded over on itself substantially along a central axis, a medial V-shaped projection is inserted into a superior portion of the gluteal cleft of the person to adhere the medial projection to the skin within the gluteal cleft, two lateral V-shaped projections are then pushed against a superior portion of the buttocks of the person to adhere the lateral projections to the skin, and the opposing lateral ends and the top end of the wound dressing are then pushed against the skin of the person until the wound dressing is properly adhered to the sacrococcygeal region over the sacral wound.Type: GrantFiled: November 17, 2009Date of Patent: October 22, 2013Inventor: Patricia A. Smith
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Publication number: 20130231600Abstract: Provided are buffered adhesive compositions comprising a high molecular weight non-neutralized polymeric acid and a high molecular weight partially neutralized polymeric acid and products such as wound dressings and ostomy skin barriers incorporating the compositions.Type: ApplicationFiled: February 27, 2013Publication date: September 5, 2013Inventors: Michael Gerard Taylor, Richard Iwao Murahata
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Patent number: 8497408Abstract: High-pressure bleeding wounds (and other bleeding wounds) may be treated by applying direct pressure directly in the bleeding wound, such as by applying a back pressure in a confined space around and in the wound. Certain substances and articles may be inserted into the wound, and the wound may be enclosed with that substance or article (such as a hemostatic substance, which may be polymeric), by swelling on contact with molecules (such as water molecules in the blood) encountered in the wound, generates the desired pressure to stop or at least reduce the bleeding without the detrimental effects of a tourniquet. Clot-inducing substances may be introduced into the wound contemporaneously with direct pressure application directly in the wound. Compressible and non-compressible wounds are treated. Treatment stops bleeding without producing pressure injury or ischemic damage. Medical devices using this technology are provided, including removable, biodegradable, medic-administrable devices.Type: GrantFiled: September 14, 2007Date of Patent: July 30, 2013Assignee: Virginia Commonwealth UniversityInventors: Gary Wnek, Marcus E. Carr, Jr., Gary Bowlin, Kelman I. Cohen, Kevin R. Ward, Wayne Barbee, Rao Ivatury
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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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Publication number: 20130079696Abstract: A dressing suitable for topical application to the body, including a carrier substrate having a first side and opposing second side; and a layer of a foamed adhesive composition applied to the second side of the carrier substrate, where the layer of foamed adhesive composition includes a substantially homogeneous distribution of closed cells having an inert gas contained therein.Type: ApplicationFiled: September 28, 2011Publication date: March 28, 2013Inventor: Bharat D. Patel
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Patent number: 8395010Abstract: The present invention provides devices and methods for treating wounds. The devices may include polymer particles capable of absorbing fluid such as blood. When devices of the invention are exposed to fluid, the fluid may enter the device and cause the polymer particles to swell. Devices of the invention may also apply pressure on wound cavities to stop or restrict the flow of fluid. In some embodiments, the devices may comprise components to facilitate absorption of fluid throughout the device, such as wicking elements and/or multiple compartments. One or more of the devices can be placed directly in the wound cavity, or in a containment structure and then into the wound cavity.Type: GrantFiled: November 22, 2010Date of Patent: March 12, 2013Assignee: FEG Holdings, LLCInventors: Javier de Luis, Marco Serra, Timothy Sutherland, Liping Sun
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Patent number: 8383148Abstract: 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 18, 2012Date of Patent: February 26, 2013Assignee: Z-Medica, LLCInventors: Raymond J. Huey, Denny Lo, Daniel J. Burns, Giacomo Basadonna, Francis X. Hursey
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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: 8313474Abstract: An aqueous solution of polyacrylic acid is placed in a mold, frozen, and freeze-dried to form a sponge-like polyacrylic acid structure. The sponge-like polyacrylic acid structure is compressed by the application of heat and pressure to reduce the thickness and increase the density of the sponge-like polyacrylic acid structure to form a densified polyacrylic acid structure. The densified polyacrylic acid structure is preconditioned by heating to form a wound dressing. The wound dressing can be applied to control severe, life-threatening bleeding from a wound at a wound site of a person.Type: GrantFiled: December 17, 2007Date of Patent: November 20, 2012Assignee: HemCon Medical Technologies, Inc.Inventors: Todd D. Campbell, William P. Wiesmann, Simon J. McCarthy
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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: 8269058Abstract: Absorbable tissue dressing assemblies are formed from hydrophilic polymer sponge structures, such as chitosan.Type: GrantFiled: July 16, 2008Date of Patent: September 18, 2012Assignee: HemCon Medical Technologies, Inc.Inventors: Simon McCarthy, Barbara McGrath, Ervelyn Winata
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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: 8257778Abstract: A method of manufacturing a sturdy and pliable fibrous hemostatic dressing by making fibers that maximally expose surface area per unit weight of active ingredients as a means for aiding in the clot forming process and as a means of minimizing waste of active ingredients. The method uses a rotating object to spin off a liquid biocompatible fiber precursor, which is added at its center. Fibers formed then deposit on a collector located at a distance from the rotating object creating a fiber layer on the collector. An electrical potential difference is maintained between the rotating disk and the collector. Then, a liquid procoagulation species is introduced at the center of the rotating disk such that it spins off the rotating disk and coats the fibers.Type: GrantFiled: March 8, 2012Date of Patent: September 4, 2012Assignee: LNK Chemsolutions, LLCInventors: Gustavo Larsen, Ruben Spretz, Raffet Velarde-Ortiz
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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: 8252971Abstract: The present invention provides systems and methods for protecting wounds, such as surgical incisions. In one embodiment, a dressing for protecting a wound includes: a support cushion configured to surround the wound, the support cushion having sidewalls defining a major axis and a minor axis, the support cushion including at least two perforations that traverse the sidewalls at offset locations; a reservoir configured to be suspended over and in engagement with the support cushion; and a cover configured to be positioned over the reservoir. The at least two perforations may define first and second interlocking J-shaped portions. The support cushion may include a wicking portion configured to surround the wound and a hydrophobic portion configured to surround the hydrophobic portion. The wicking portion may be configured to transfer fluid from the wound to the reservoir. Methods of applying the dressing, and kits including the dressing, also are provided.Type: GrantFiled: July 16, 2009Date of Patent: August 28, 2012Assignee: Aalnex, Inc.Inventors: Adel Aali, Raymond Barbuto
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Patent number: 8241261Abstract: A super-absorbent dressing assembly for use with a reduced-pressure wound treatment system includes a breathable, fluid restricted dry layer for placement against a wound, a super-absorbent layer, and a non-breathable layer, and a drape extending over the non-breathable layer. A reduced-pressure interface is available to fluidly couple the super-absorbent layer to a reduced-pressure subsystem. The super-absorbent dressing assembly preferably supplies a compressive force when placed under reduced pressure. A reduced-pressure treatment system uses a super-absorbent bolster to treat wounds, e.g., linear wounds.Type: GrantFiled: May 29, 2009Date of Patent: August 14, 2012Assignee: KCI Licensing, Inc.Inventors: Larry Tab Randolph, Justin Alexander Long
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Publication number: 20120165716Abstract: A Band-Aid type self-adhesive bandage whose absorbent pad outer surface is photodynamically sanitized while maintaining standard absorbency performance.Type: ApplicationFiled: March 1, 2012Publication date: June 28, 2012Inventor: David Isidore Reuben
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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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Patent number: 8137294Abstract: A bandage for covering an affected area of the skin is provided. The bandage including: a first bandage having an adhesive for adhering to the skin and an opening for exposing the affected area; a second bandage for covering the opening; and a releasable attachment system for releasably securing the second bandage to the first bandage to cover the opening. Also provided is a swab including: a tubular body having a conduit and a breakable wall portion disposed in the conduit; a fluid disposed in the conduit; and a cotton swab disposed at an end of the tubular body; wherein bending of the tubular body breaks the breakable wall portion allowing the fluid to flow into the cotton swab. Still further provided is a cotton product including: a cotton body; and a breakable capsule disposed in the body, the breakable capsule having a cavity filled with a fluid.Type: GrantFiled: May 27, 2009Date of Patent: March 20, 2012Inventor: Robert J. Baschnagel
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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: 8076528Abstract: Accordingly, the present invention relates to a pressure sensitive adhesive composition consisting of a continuous phase comprising cross-linked polyalkyleneoxide polymer and a discontinuous phase comprising water absorbent hydrophilic agents wherein a) the water absorbent hydrophilic agent(s) is present in an amount between 1 and 40% w/w of the total adhesive composition; and b) the continuous phase comprises the reaction product (X) of: (i) a polyalkyleneoxide polymer having one or more unsaturated end groups, and where more than 90% w/w of the polyalkylene oxide polymer consist of polymerised alkyleneoxide moities having three or more carbon atoms, and (ii) an organosiloxane comprising one or more Si—H groups, carried out in the presence of an addition reaction catalyst. The present invention also relates to medical devices comprising such pressure sensitive adhesives.Type: GrantFiled: May 3, 2007Date of Patent: December 13, 2011Assignee: Coloplast A/SInventors: Peter Kwok Hing Lam, Kristoffer Hansen, Anders Bach, Mads Lykke
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Patent number: 8034184Abstract: A method for controlling the flow of a fluid on a surface. In some embodiments, the method includes providing a fluid absorbent tape that includes an absorbent material, a fluid permeable cover enclosing the absorbent material to form an elongated fluid absorbent tape, and a separating structure that is formed in a transverse direction across the elongated fluid absorbent tape and the absorbent material. The separating structure divides the elongated tape into first and second sections. The first section of fluid absorbent tape is separable from the second section of fluid absorbent tape along the separating structure. Also in some embodiments, the method further includes separating a desired length of the first section of fluid absorbent tape from the second section at said separating structure, placing the first section on the surface, and contacting the first section with the fluid to be controlled so that the absorbent material forms a physical barrier to the flow of fluid.Type: GrantFiled: July 20, 2007Date of Patent: October 11, 2011Assignee: Diversey, Inc.Inventor: Andrew M. Bober
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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