Film-forming Bandage Material Patents (Class 602/904)
  • Patent number: 6685682
    Abstract: A carrier delivered dressing which has a conformable backing with a pressure sensitive adhesive coated on a bottom face and a low adhesion coating on a top face. The backing is supported during shipping and handling by a liner attached to the adhesive and a removable heat sealed carrier attached to the top face of the backing. The method according to the present invention discloses the steps of forming and optionally removing windows in a carrier material and nonpermanently heat sealing the carrier to the backing to form the dressings of the present invention.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: February 3, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Steven B. Heinecke, Donald G. Peterson
  • Patent number: 6630215
    Abstract: A medical material and a medical device comprising an aromatic vinyl compound/&agr;-olefin random copolymer according to the present invention, are materials which contain substantially no chlorine and which have not only excellent flexibility, transparency and proper resilience but also radiation resistance and biocompatibility, and they are hence advantageously used especially in the medical field.
    Type: Grant
    Filed: September 7, 2000
    Date of Patent: October 7, 2003
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takeshi Oda, Yukiko Nishitoba, Toru Arai, Akio Okamoto, Toshiaki Otsu
  • Patent number: 6471985
    Abstract: In one embodiment, the present invention relates to a method of treating a wound, involving applying to the wound a room temperature vulcanizing silicone composition comprising a crosslinkable polymer, a crosslinking agent, and a catalyst; permitting the room temperature vulcanizing silicon composition to cure thereby forming a membrane having a thickness from about 0.1 mm to about 5 mm; and removing the membrane from the wound after at least about 1 day.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: October 29, 2002
    Inventors: Bahman Guyuron, Michael Doliveck
  • Patent number: 6387977
    Abstract: An impoved barrier or drug delivery system which is highly adherent to the surface to which it is applied is disclosed, along with methods for making the barrier. In the preferred embodiment, tissue is stained with a photoinitiator, then the polymer solution or gel having added thereto a defined amount of the same or a different photoinitiator is applied to the tissue. On exposure to light, the resulting system polymerizes at the surface, giving excellent adherence, and also forms a gel in the rest of the applied volume. Thus a gel barrier of arbitrary thickness can be applied to a surface while maintaining high adherence at the interface. This process is referred to herein as “priming”. The polymerizable barrier materials are highly useful for sealing tissue surfaces and junctions against leaks of fluids. In another embodiment, “priming” can be used to reliably adhere preformed barriers to tissue or other surfaces, or to adhere tissue surfaces to each other.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: May 14, 2002
    Assignees: Focal, Inc., Board of Regents, The University of Texas System
    Inventors: Amarpreet S. Sawhney, David A. Melanson, Chandrashekar P. Pathak, Jeffrey A. Hubbell, Luis Z. Avila, Mark T. Kieras, Stephen D. Goodrich, Shikha P. Barman, Arthur J. Coury, Ronald S. Rudowsky, Douglas J. K. Weaver, Marc A. Levine, John C. Spiridigliozzi, Thomas S. Bromander, Dean M. Pichon, George Selecman, David J. Nedder, Bradley C. Poff, Donald L. Elbert
  • Patent number: 6326025
    Abstract: The present invention is directed to a biocompatible tissue reactive composition comprising a functionalized polymer having tissue reactive substituents that are capable of forming covalent bonds with tissue associated functional groups.
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: December 4, 2001
    Assignee: DePuy Orthopaedics, Inc
    Inventors: Gerry Sigler, Z. David Deng, Dale R. Peterson, Todd P. Glancy, Samuel I. Stupp
  • Patent number: 6010716
    Abstract: The invention concerns a pharmaceutical composition for transdermal administration, characterized in that it comprises:a) optionally, a polymeric release matrix capable of forming a flexible film after drying, chosen from cellulose polymers or copolymers or vinylpyrrolidone/vinyl acetate copolymersb) an active principlec) a promoter of transcutaneous absorption of the active principled) a physiologically acceptable non-aqueous solvent capable of dissolving the release matrix, the active principle and the transcutaneous absorption promoter and also capable of being rapidly removed by evaporation on contact with the skin.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: January 4, 2000
    Assignee: Sanofi
    Inventors: Henry Saunal, Brigitte Illel
  • Patent number: 5830526
    Abstract: A substrate such as a woven or nonwoven fabric bound with a light-activated dye alone or in combination with additional conventional antimicrobial agents. The substrate is impregnated with a light-activated non-leachable dye having antimicrobial and/or antiviral characteristics which can be imparted to the substrate. The dye is bound by a cationic or anionic binder such as a water soluble polymer or carrageenan. Upon exposure to normal light, the dye generates singlet oxygen that kills microorganisms and viruses.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: November 3, 1998
    Assignee: FiberMark, Inc.
    Inventors: John E. Wilson, Christopher Bull
  • Patent number: 5800373
    Abstract: An improved barrier or drug delivery system which is highly adherent to the surface to which it is applied is disclosed, along with methods for making for making the barrier. In the preferred embodiment, tissue is stained with a photoinitiator, then the polymer solution or gel having added thereto a defined amount of the same or a different photoinitator is applied to the tissue. On exposure to light, the resulting system polymerizes at the surface, giving excellent adherence, and also forms a gel in the rest of the applied volume. Thus a gel barrier of arbitrary thickness can be applied to a surface while maintaining high adherence at the interface. This process is referred to herein as "priming". The polymerizable barrier materials are highly useful for sealing tissue surfaces and junctions against leaks of fluids. In another embodiment, "priming" can be used to reliably adhere preformed barriers to tissue or other surfaces, or to adhere tissue surfaces to each other.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: September 1, 1998
    Assignee: Focal, Inc.
    Inventors: David A. Melanson, Amarpreet S. Sawhney, Marc Alan Levine, John C. Spiridigliozzi, Thomas S. Bromander
  • Patent number: 5795584
    Abstract: Surgical adhesion barriers and methods of using such surgical adhesion barriers are provided. Surgical adhesion barriers according to the present invention have at least one layer of a bioabsorbable material comprising copolymers and/or block copolymers derived from trimethylene carbonate. Alternatively, a multilayer surgical structure having one or more bioabsorbable layers superimposed on a non-absorbable layer is useful for minimizing or preventing formation of fibrous adhesions between a healing trauma site and adjacent surrounding tissue. Alternatively, a bioabsorbable non-woven fabric in adherent contact with at least one bioabsorbable layer of foam, film, mesh, web or woven fabric is also provided. One or more medicinal agents may be interposed between or disposed within any of the aforementioned layers.
    Type: Grant
    Filed: February 7, 1995
    Date of Patent: August 18, 1998
    Assignee: United States Surgical Corporation
    Inventors: Nagabhushanam Totakura, Ross R. Muth, Roy D. Gravener, Matthew Hain, Ilya S. Koyfman
  • Patent number: 5791352
    Abstract: Tissue adhesions are inhibited by applying and immobilizing a solid preformed matrix material over a target region, such as a surgical site, in a first tissue surface. The matrix material may be any continuous solid material, such as a sheet or film. After applying the material to the target region, the material is immobilized by applying energy over at least a portion of the surface of the matrix material which causes the material to fuse to the underlying tissue. The matrix material is preferably bioabsorbable so that it is resorbed by the body over time. Suitable matrix materials include proteins, polysaccharrides, and synthetic polymers.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: August 11, 1998
    Assignee: Fusion Medical Technologies, Inc.
    Inventors: Cary J. Reich, Donald Wallace, Greg Dapper
  • Patent number: 5786421
    Abstract: Collagen-based compositions useful in the attachment of tissues, or the attachment of tissues to synthetic implant materials, are disclosed. The compositions comprise collagen crosslinked using a multifunctionally activated synthetic hydrophilic polymer. A particularly preferred composition comprises fibrillar collagen, a fiber disassembly agent, and a multifunctionally activated synthetic hydrophilic polymer. Methods are disclosed for using the compositions to effect the attachment of a native tissue to the surface of another native tissue, a non-native tissue, or a synthetic implant. Also disclosed are methods of using the compositions to prevent the formation of surgical adhesions.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: July 28, 1998
    Assignee: Cohesion Technologies, Inc.
    Inventors: Woonza M. Rhee, Prema R. Rao, George H. Chu, Frank A. DeLustro, Carol F. H. Harner, Naomi Sakai, Jacqueline A. Schroeder
  • Patent number: 5725491
    Abstract: The invention is directed to a biodegradable film dressing with or without additional therapeutic agents, an apparatus for spray delivery and a method for formation of the film dressing on a human or animal tissue. The film dressing is formed from a liquid composition of at least one biodegradable/bioerodible thermoplastic polymer such as polylactides, polyglycolides, polycaprolactones or copolymers thereof in a pharmaceutically acceptable solvent such as N-methylpyrrolidone, alcohols or alkyl esters. The spray apparatus includes a vessel containing the liquid composition with a dispensing means. The film is formed by dispensing, preferably by spraying, the liquid composition onto a tissue site and contacting the liquid composition with an aqueous based fluid such as water, saline solution or body fluid to coagulate or solidify the film onto the human or animal tissue.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: March 10, 1998
    Assignee: Atrix Laboratories, Inc.
    Inventors: Arthur J. Tipton, Shawn M. Fujita, Richard L. Dunn
  • Patent number: 5717030
    Abstract: A medical device which is a surgically implantable device coated with an adjunctive polymer system. The adjunctive polymer system forms a solid matrix when introduced into a human or animal body. The adjunctive polymer system can contain a drug or a medicament which is released over time from the solid matrix. The adjunctive polymer system contacts body tissue into which the surgically implantable device is implanted.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: February 10, 1998
    Assignee: Atrix Laboratories, Inc.
    Inventors: Richard L. Dunn, Gerald L. Yewey, Jeffrey L. Southard, John E. Urheim
  • Patent number: 5707647
    Abstract: A medical device which is a surgically implantable device coated with an adjunctive polymer system. The adjunctive polymer system forms a solid matrix when introduced into a human or animal body. The adjunctive polymer system can contain a drug or a medicament which is released over time from the solid matrix. The adjunctive polymer system contacts body tissue into which the surgically implantable device is implanted.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: January 13, 1998
    Assignee: Atrix Laboratories, Inc.
    Inventors: Richard L. Dunn, Gerald L. Yewey, Jeffrey L. Southard, John E. Urheim
  • Patent number: 5632727
    Abstract: The invention is directed to a biodegradable film dressing with or without additional therapeutic agents, an apparatus for spray delivery and a method for formation of the film dressing on a human or animal tissue. The film dressing is formed from a liquid composition of at least one biodegradable/bioerodible thermoplastic polymer in a pharmaceutically acceptable solvent. The spray apparatus includes a vessel containing the liquid composition with a dispensing means. The film is formed by dispensing, preferably by spraying, the liquid composition onto a tissue site and contacting the liquid composition with an aqueous based fluid to coagulate or solidify the film onto the human or animal tissue. The biodegradable film can be used to protect and to promote healing of injured tissue and/or to deliver biologically active agents.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 27, 1997
    Assignee: Atrix Laboratories, Inc.
    Inventors: Arthur J. Tipton, Shawn M. Fujita, Richard L. Dunn
  • Patent number: 5578046
    Abstract: The present invention relates to composite materials having a core portion formed from a first bioabsorbable material and at least one shell portion of a second bioabsorbable material joined to the core portion. The first and second bioabsorbable materials have different rates of bioabsorption. In a preferred embodiment, the core portion is coextruded with the shell portion to form a composite filament or sheet. The materials of the present invention may be used as sutures or formed into medical devices or surgical articles for implantation within a living organism.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: November 26, 1996
    Assignee: United States Surgical Corporation
    Inventors: Cheng-Kung Liu, Ying Jiang, Mark S. Roby, Steven L. Bennett, Richard P. Stevenson, Jeffrey P. Pietrangeli
  • Patent number: 5575995
    Abstract: Lesions surgically or otherwise induced on living tissue are treated by applying to the tissue a gel containing a water solution of ferric subsulfate, glycerin to thicken the solution and polyvinyl pyrrolidone as a film forming material.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 19, 1996
    Inventor: Richard L. Giovanoni
  • Patent number: 5432009
    Abstract: A film for a first-aid sticking plaster consisting of polypropylene resin having a weight average molecular weight within a range of 80,000 to 500,000, with resin elution quantities according to cross fractionation chromatograph in ranges of 45 to 80 percent by weight at 0.degree. to 10.degree. C., 5 to 35 percent by weight at 10.degree. to 70.degree. C., 1 to 30 percent by weight at 70.degree. to 95.degree. C., and 5 to 35 percent by weight at 95.degree. to 125.degree. C.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: July 11, 1995
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hironori Tabata, Masao Ogasa, Kiyomi Uenomachi, Hideshi Matsumoto
  • Patent number: 5409903
    Abstract: A method of treating a mammal for the presence or the activity of H. pylori in the gastrointestinal tract is disclosed. The method encompasses orally administering to said mammal a sufficient amount of a scavenging, reacting or inactivating compound to remove bicarbonate ions, ammonium ions or urea which are present in combination with the microorganisms which colonize and infect the gastric mucosa. Such microorganisms have been implicated in gastritis, gastric ulcer disease and as a risk factor in gastric carcinoma.Also, the invention encompasses a method, utilizing similar compounds, for the treatment or prevention of dermatitis such as diaper rash wherein these compounds are preapplied to the skin or used to treat the diaper prior to use.Also included are compositions which are used for the methods described above.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: April 25, 1995
    Assignee: Urecap Corporation
    Inventors: Robert B. Polak, Attallah Kappas
  • Patent number: 5306490
    Abstract: A cyanoacrylate adhesive is applied to the skin areas prone to blistering prior to blister formation.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: April 26, 1994
    Assignee: Medlogic, Inc.
    Inventor: Leonard V. Barley, Jr.
  • Patent number: 5192536
    Abstract: A composition and a method for coating a wound is described. The composition consists of a mixture of 20 parts by weight of polyether polyurethane resin pellets being dissolved in about 80 parts by weight of tetrahydrofuran thereafter mixing the solution in order to provide complete mixing in an air tight container. The composition then being applied to a wound to form a tough but elastic wound coating to promote healing of animal tissue.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: March 9, 1993
    Inventor: Carl A. Huprich