Patents Represented by Attorney David R. Crichton
  • Patent number: 8349354
    Abstract: The present invention is directed to a hemostatic composite structure having a bioabsorbable fabric or non-woven substrate having at least two major oppositely facing surface areas and a continuous non-porous polymer-based film that is laminated on one major surface of said substrate. The bioabsorbable fabric substrate can be an oxidized polysaccharide and/or the non-woven substrate can be made from bioabsorbable, non-cellulosic derived polymers. The continuous non-porous polymer based film can be a bioabsorbable polymer. The present invention also relates to a method for providing hemostasis by applying a composite structure described herein onto a wound site in need of a hemostatic device wherein a major surface of the substrate without the film layer is applied onto the wound site.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: January 8, 2013
    Assignee: Ethicon, Inc.
    Inventor: Sasa Andjelic
  • Patent number: 8337881
    Abstract: A polymerizable antimicrobial formulation for forming a wound closure adhesive comprising cyanoacrylate monomer and diiodomethyl-p-tolylsulfone; and a method for closing the approximated edges of a wound with a polymeric film that substantially inhibits the growth of microorganisms, where the polymeric film is formed by use of the polymerizable antimicrobial formulation.
    Type: Grant
    Filed: August 16, 2004
    Date of Patent: December 25, 2012
    Assignee: Ethicon, Inc.
    Inventors: Binoy K. Bordoloi, Shubhangi R. Bhende
  • Patent number: 8329211
    Abstract: The present invention is directed to a synthetic fabric comprising a multi-layered nonwoven fabric made from staples of a polyglycolide/polylactide copolymer, each layer having a different density. The multi-layer fabric can be used as a reinforced absorbable hemostat medical device.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: December 11, 2012
    Assignee: Ethicon, Inc.
    Inventors: Olajompo Moloye-Olabisi, Dhanuraj S. Shetty, Robert W. Van Holten, Degang Zhong
  • Patent number: 8322637
    Abstract: A method for micronization of a dispersion of particles including a protein having a predetermined level of biological activity, is provided. The method includes introducing the dispersion into a vortex chamber milling apparatus under milling conditions which result in a protein powder having a particle size distribution of 5 to 100 ?m and/or exhibiting a 30 to 400 fold size reduction of the protein particle dispersion from its original size, and retaining at least 80% of the predetermined level of biological activity of the protein. The milling conditions include one or more parameters selected from the following: input pressure between 1 and 7 Bars; injector pressure between 0.2 and 5 Bars; loading rate between 0.1 and 5 kg/hour; and gas flow between 30 and 100 m3/hour.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: December 4, 2012
    Assignee: Omrix Biopharmaceuticals Ltd.
    Inventors: Israel Nur, Liliana Bar
  • Patent number: 8324292
    Abstract: A medically acceptable formulation comprising a diisocyanate terminated macromer or mixture thereof, and an oxidized cellulose.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: December 4, 2012
    Assignee: Ethicon, Inc.
    Inventors: Robert B. Vetrecin, Elizabeth Vailhe, Robert W. Van Holten
  • Patent number: 8299316
    Abstract: A hemostatic device comprising (i) a carrier comprising at least one component selected from the group consisting of hydroxypropyl methylcellulose phthalate, hydroxypropyl methylcellulose acetate succinate, cellulose acetate phthalate; polyvinylacetate phthalate, cellulose acetate phthalate, acetaldehyde dimethylcellulose acetate, polymethacrylate-based polymers, and derivatives, salts, copolymers or combinations thereof; and (ii) thrombin.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: October 30, 2012
    Assignee: Ethicon, Inc.
    Inventors: Robert W. Van Holten, Jagdishchandra C. Patel, Stephen C. Yeadon
  • Patent number: 8273369
    Abstract: The present invention is directed to a reinforced absorbable hemostat comprising at least one hemostatic agent in a single layer of nonwoven synthetic fabric having a mixture of compressed fiber staples of a polyglycolide/polylactide copolymer and a polydioxanone.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: September 25, 2012
    Assignee: Ethicon, Inc.
    Inventors: Olajompo Moloye-Olabisi, Dhanuraj S. Shetty, Robert W. Van Holten, Degang Zhong
  • Patent number: 8272386
    Abstract: A surgical wound closure device comprising multiple layers joined at only one edge of each layer in a book-like arrangement and having opposite unjoined edges, including a substrate having a proximal surface and a distal surface; a drape having a proximal surface and a distal surface, and being disposed proximally to said substrate; and an adhesive layer having a proximal surface and a distal surface; said drape being disposed releasably adherently to said distal surface of said adhesive layer. Also provided is a surgical procedure employing a surgical wound closure device.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: September 25, 2012
    Assignee: Ethicon, Inc.
    Inventors: Robert A. Rousseau, An-Min Jason Sung
  • Patent number: 8138236
    Abstract: The invention relates to a novel moisture activated solvent-free latent curing adhesive or sealant mixture comprising (1) a selected poly(alkylene oxide)imine, and (2) a selected amine reactive moiety.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: March 20, 2012
    Assignee: Ethicon, Inc.
    Inventors: Chetan Anirudh Khatri, Joseph Zavatsky
  • Patent number: 8129445
    Abstract: The invention relates to a novel poly(ethylene oxide)imine; a novel amine reactive moiety; a novel moisture activated latent curing adhesive or sealant mixture comprising (1) a ketimine or aldimine, and (2) an amine reactive moiety; and a novel moisture activated latent curing adhesive or sealant comprising the reaction product of (1) and (2).
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: March 6, 2012
    Assignee: Ethicon, Inc.
    Inventors: Joseph Zavatsky, Binoy K. Bordoloi
  • Patent number: 8119160
    Abstract: The present inventions includes a plurality of packed particles that contain interstitial pores, where the interstitial pores have a pore volume and a median pore diameter effective to provide improved absorption of physiological fluids or an aqueous media when placed in contact therewith, compared to a plurality of unpacked particles of the same material, where the particles are made of a biocompatible material and hemostatic agents and have an average diameter suitable for use in providing hemostasis to a site of a body of a mammal requiring hemostasis, hemostatic compositions containing such plurality of packed particles, methods of making such particles and compositions and medical devices suitable for delivering and containing the hemostatic plurality of particles and/or composition to a site of a body.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: February 21, 2012
    Assignee: Ethicon, Inc.
    Inventors: Dwayne Lee Looney, Guanghui Zhang, Sonia Martins
  • Patent number: 8119831
    Abstract: The invention relates to a novel poly(ethylene oxide)imine; a novel amine reactive moiety; a novel moisture activated latent curing adhesive or sealant mixture comprising (1) a ketimine or aldimine, and (2) an amine reactive moiety; and a novel moisture activated latent curing adhesive or sealant comprising the reaction product of (1) and (2).
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: February 21, 2012
    Assignee: Ethicon, Inc.
    Inventor: Chetan Anirudh Khatri
  • Patent number: 8071663
    Abstract: The present invention is directed to a medically acceptable formulation comprising a diisocyanate terminated macromer or mixture thereof, and bio-absorbable desiccant comprising a hygroscopic and/or hydrophilic or combination thereof. The present invention is also directed to methods of use for such formulations for medical procedures.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: December 6, 2011
    Assignee: Ethicon, Inc.
    Inventors: Benjamin D. Fitz, Elizabeth Vailhe, Joseph Zavatsky, Christopher M. Westergom
  • Patent number: 7968668
    Abstract: A novel macromer or mixture thereof is described herein, comprising benzoyl isocyanate terminal moieties and at least two residues of a water-soluble polymer having a molecular weight ranging from 80 to 10,000 adjacent to the carbonyl group of the benzoyl isocyanate moieties, thereby forming at least two ester linkages in the macromer or mixture thereof. A method for making a polyisocyanate macromer is also described herein.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: June 28, 2011
    Assignee: Ethicon Inc.
    Inventors: Benjamin D. Fitz, Christopher M. Westergom
  • Patent number: 7947758
    Abstract: The invention relates to a novel poly(ethylene oxide)imine; a novel amine reactive moiety; a novel moisture activated latent curing adhesive or sealant mixture comprising (1) a ketimine or aldimine, and (2) an amine reactive moiety; and a novel moisture activated latent curing adhesive or sealant comprising the reaction product of (1) and (2).
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: May 24, 2011
    Assignee: Ethicon, Inc.
    Inventors: Chetan Anirudh Khatri, Joseph Zavatsky, Binoy K. Bordoloi
  • Patent number: 7754233
    Abstract: A method for preventing adhesion using a co-polyester comprising the reaction product of a polycondensation polyester and at least one lactone, wherein the polycondensation polyester comprises the reaction product of diglycolic acid and/or a derivative thereof and ethylene glycol; and the co-polyester comprises about 40 to 50% by weight of the polycondensation polyester based on the total weight of the co-polyester.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: July 13, 2010
    Assignee: Ethicon, Inc.
    Inventors: Sasa Andjelic, Rao S. Bezwada, Dennis D. Jamiolkowski
  • Patent number: 7534907
    Abstract: A monomer composition comprising at least one polymerizable alkyl ester ?-cyanoacrylate monomer. Specifically, the ?-cyanoacrylate monomer is an alkyl ester ?-cyanoacrylate monomer of the general formula having a spacer R1: n is from 2 to 12; R3 and R4 are each an alkyl group or a hydrogen, and at least one of R3 or R4 is an alkyl group (e.g. linear or branched, or cyclic) having from 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 and 13 carbon atoms; R2 is an alkyl group (e.g. linear or branched, or cyclic) having from 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 and 13 carbon atoms; and the combined number of carbon atoms (N) in the spacer R1 is at least n+1.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: May 19, 2009
    Assignee: Ethichon, Inc.
    Inventor: Hongbo Liu
  • Patent number: 7297345
    Abstract: Systems, methods and apparatuses for manufacturing dosage forms, and to dosage forms made using such systems, methods and apparatuses are provided. Novel compression, thermal cycle molding, and thermal setting molding modules are disclosed. One or more of such modules may be linked, preferably via novel transfer device, into an overall system for making dosage forms.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: November 20, 2007
    Assignee: McNeil-PPC, Inc.
    Inventor: Harry S. Sowden
  • Patent number: 7217381
    Abstract: Systems, methods and apparatuses for manufacturing dosage forms, and to dosage forms made using such systems, methods and apparatuses are provided. Novel compression, injection molding, and thermal setting molding modules are disclosed. One or more of such modules may be linked, preferably via a transfer device, into an overall system for making dosage forms. The injection molding module having at least one mold shell with an interior surface capable of producing non-uniform coatings over compressed cores or molded inserts contained therein.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: May 15, 2007
    Assignee: McNeil-PPC, Inc.
    Inventor: Harry S. Sowden
  • Patent number: 6837696
    Abstract: Systems, methods and apparatuses for manufacturing dosage forms, and to dosage forms made using such systems, methods and apparatuses are provided. Novel compression, thermal cycle molding, and thermal setting molding modules are disclosed. One or more of such modules may be linked, preferably via novel transfer device, into an overall system for making dosage forms.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: January 4, 2005
    Assignee: McNeil-PPC, Inc.
    Inventors: Harry S. Sowden, Shun Por Li