Patents Represented by Attorney, Agent or Law Firm Andrew C. Farmer
  • Patent number: 6869433
    Abstract: A polyaxial pedicle screw assembly incorporates a concave portion on a receiver which mates with a convex surface on a head of the screw to form a ball joint. The radius of at least a portion of the concave surface is less than a radius of the mating convex portion whereby to create an interference fit.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: March 22, 2005
    Assignee: Depuy Acromed, Inc.
    Inventor: Craig Glascott
  • Patent number: 6468238
    Abstract: A halo crown has depending posterior legs adjustable in multiple dimensions for conveniently adjusting the halo crown to a patient's skull. Each leg slides along a single axis yet provides adjustments in three dimensions due to a portion thereof extending downwardly, inwardly and rearwardly and the orientation of the axis.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: October 22, 2002
    Assignee: Depuy Acromed, Inc.
    Inventors: J. Riley Hawkins, John Knapik, Eric Smith
  • Patent number: 6440940
    Abstract: The invention provides oxidized alginates that are bioresorbable. The oxidized alginates are prepared by controlled oxidation of alginates with nitrogen tetroxide or the like, The invention also provides pharmaceutical compositions, wound dressings, surgical implants and prostheses comprising the oxidized alginate derivatives.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: August 27, 2002
    Inventors: Peter J. Doyle, Wilson Harvey, Reginald L. Stilwell
  • Patent number: 6325972
    Abstract: A method for sterilizing a device, includes the following steps: contacting the device with liquid sterilant outside or inside a sterilization chamber at a first pressure, placing the device in the chamber before or after the contacting step, and decreasing the pressure of the chamber to a second pressure below the vapor pressure of the liquid sterilant. At least the decrease in pressure below about the vapor pressure of the liquid sterilant occurs at a pumpdown rate of less than 0.8 liters per second, calculated based on the time required to evacuate the chamber from atmospheric pressure to 20 torr when the chamber is empty and dry.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: December 4, 2001
    Assignee: Ethicon, Inc.
    Inventors: Paul Jacobs, Suz-Min Lin, Jenn-Hann Wang
  • Patent number: 6264902
    Abstract: A sterilization container for sterilizing, storing and transporting instruments is provided with a base portion having a plurality of drainage wells. The drainage wells comprise a downwardly sloping surface terminating in a drainage aperture. Upper portions of the sloping surfaces support a flexible instrument holding mat within the container. Sterilization containers are formed of thermoplastic liquid crystal polymer, such as a wholly aromatic polyester. A latch mechanism comprises a latch member rotatably supported upon torsion bars within a recessed portion of the container which presents no sharp surfaces to the user.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: July 24, 2001
    Assignee: Johnson & Johnson Medical, Inc.
    Inventor: Charles Howlett
  • Patent number: 6235659
    Abstract: A medical gown and drape are disclosed in which regions thereof are imprinted with performance enhancing coatings. The gown has regions in the chest and sleeve areas imprinted with a liquid repellent coating to protect the wearer from fluids. The drape preferably has an absorbent or super absorbent coating surrounding a fenestration through which an operation may occur. The drape may also have regions coated with water repellent or friction enhancing materials. The gown further has adhesive closures rather than ties.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: May 22, 2001
    Assignee: Ethicon, Inc.
    Inventors: Larry McAmish, Raymond Barbuto, Jeffrey Taylor, Alex Laurie
  • Patent number: 6197194
    Abstract: A system for preparing autologous plasma comprises a single use filter unit having two inlets in fluid communication with each other, an outlet, and a filtration membrane selectively permeable to blood plasma separating the inlets from the outlet. Manually operable, single use pumps, preferably syringes, connect to the inlets. A flow path is defined along the membrane between the pumps, whereby, whole blood can be repeatedly exchanged between the two pumps, past the membrane, to cause plasma to flow across the membrane and out of the outlet. A syringe can collect plasma from the outlet. Plasma thus collected can be simultaneously applied with a thrombin solution to a site on the body, thereby forming a fibrin gel.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: March 6, 2001
    Inventor: Elaine Whitmore
  • Patent number: 6193932
    Abstract: A sterilization container has an improved elastomeric instrument holder. The instrument holder comprises a panel of elastomer having a projection depending downwardly therefrom and received within an perforation through a perforated surface within the container to hold the panel thereto. An aperture through the panel is adapted for receiving and holding an instrument to be sterilized. An inner surface of the aperture is adapted to have a reduced area of contact with an instrument received within the aperture. For example, the surface may comprise chamfers which meet to form a sharp ridge which contacts the instrument. The contact surface may also be textured to reduce the area of contact with the instrument. Alternatively, the surface may be formed of a material which is sufficiently permeable to a sterilizing gas so as to allow the area of the instrument in contact with the surface to receive a sufficient amount of sterilizing gas to become sterilized.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: February 27, 2001
    Assignee: Ethicon, Inc.
    Inventors: Su-Syin Wu, Charles S. Bankert, Anahid Gamsarian, Abraham Merhazion
  • Patent number: 6166084
    Abstract: The present invention provides the use of N-acetyl cysteine and its pharmaceutically acceptable salts and derivatives, for the preparation of a composition for treatment or prophylaxis of chronic ulcers. In particular, the treatment of venous ulcers, diabetic ulcers and decubitis ulcers.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: December 26, 2000
    Assignee: Johnson & Johnson Medical, Ltd.
    Inventor: Stephen Bloor
  • Patent number: 6138278
    Abstract: A medical gown and drape are disclosed in which regions thereof are imprinted with performance enhancing coatings. The gown has regions in the chest and sleeve areas imprinted with a liquid repellent coating to protect the wearer from fluids. The drape preferably has an absorbent or super absorbent coating surrounding a fenestration through which an operation may occur. The drape may also have regions coated with water repellent or friction enhancing materials. The gown further has adhesive closures rather than ties.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: October 31, 2000
    Assignee: Ethicon, Inc.
    Inventors: Jeffrey L. Taylor, Carmen A. Pinilla, Jorge Serrano, James Dennis Hart
  • Patent number: 6123958
    Abstract: The present invention provides a dressing consisting of a non-reinforced, apertured gel web, wherein the gel is substantially anhydrous and comprises a water-soluble, polysaccharide- or cellulosic-polymer and a humectant, for use in treating burns. The present invention also provides a method for making the dressing.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: September 26, 2000
    Assignee: Johnson & Johnson Medical, Inc.
    Inventors: Catherine L. Cheong, Michelle Delbono
  • Patent number: 6106855
    Abstract: Stable oil-in-water emulsions are prepared by mixing oil, water and an insoluble protein at high shear. By varying the amount of insoluble protein the emulsions may be made liquid, semisolid or solid. The preferred insoluble proteins are insoluble fibrous proteins such as collagen. The emulsions may be medicated with hydrophilic or hydrophobic pharmacologically active agents and are useful as or in wound dressings or ointments.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: August 22, 2000
    Assignee: Johnson & Johnson Medical, Inc.
    Inventors: Carla A. Haynes, Wilson Harvey
  • Patent number: 6096864
    Abstract: The invention provides wound treatment compositions comprising from 10.sup.-6 % to 1.0% w/w of one or more peptides, wherein the peptides are from 3 to 30 amino acid residues long and comprise the sequence Gly-Pro-Ala. Preferably, the peptides comprise the sequence Gly-Pro-Ala-Gly, more preferably at the N-terminus. The peptides exhibit a chemotactic effect towards fibroblasts.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: August 1, 2000
    Assignee: Johnson & Johnson Medical, Ltd.
    Inventors: Kenneth Broadley, Christine Hamilton
  • Patent number: 6067731
    Abstract: A novel shoe cover for medical uses comprises a one piece unit of thin elastomeric material having a pair of side panels in substantially parallel relation to each other. Each of the side panels has a foot shaped portion, an ankle shaped portion and an outer perimetric edge. A bead shaped perimetric section joins the two side panels at their respective perimetric edges, except at an upper edge of the ankle portions. A traction enhancing embossed pattern is formed on a lower portion of the foot shaped portion of the side panels. A novel method for forming the shoe cover comprises providing a shoe cover form which has substantially parallel lateral sides and a peripheral edge thereabout, which comprises a foot forming portion and an ankle forming portion, which has recesses covering substantially all of the foot forming portion of the first and second sides, and which has a textured surface on a lower portion of the foot forming portion.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: May 30, 2000
    Assignee: Johnson & Johnson Medical, Inc.
    Inventors: Mao-Ching Chen, Leslie Edward Blackford
  • Patent number: 6022556
    Abstract: The invention provides water swellable wound dressing materials comprising from 5% to 50% of an alginate ester of a C.sub.1 -C.sub.6 polyhydric alcohol; from 50% to 95% of a humectant consisting of one or more C.sub.1 -C.sub.6 monohydric or polyhydric alcohols; and from 0% to 30% of water, the percentages being calculated by weight based on the weight of the material when anhydrous. The preferred alginate ester is propylene glycol alginate (PGA). The materials swell but do not dissolve in cold or warm water. Insolubility is achieved by the addition of polyvaent cations such as calcium ions, or by covalent cross-linking of the pga, or by adding from 10 to 35% by weight of water-swellable polysaccharide such as gelatin, or by adding from 5% to 20% by weight of a cationic polymer such as chitosan.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: February 8, 2000
    Assignee: Johnson & Johnson Medical, Inc.
    Inventor: Craig J. Hardy
  • Patent number: 6019922
    Abstract: A powder free medical glove having an outer side a silicon treated surface and the inside of cross linked coagulated glove bonded with a layer formed of an anti-blocking composition. The anti-blocking composition includes of a polymer or copolymer mixed together with a micronised high density polyethylene material and wax in suitable blends that result in the composition having anti-blocking and improved lubricity properties. The medical glove with the skin contacting anti-blocking coating enables donning of the glove to be effected without the aid of donning powder such as starch powder. When the finished glove is washed and rinsed with water to remove the coagulant powder, and the said glove treated with a silicon solution, a glove substantially free of loose powder glove is produced and has good lubricity for donning.
    Type: Grant
    Filed: September 30, 1998
    Date of Patent: February 1, 2000
    Assignee: Johnson & Johnson Mfg Sn Bhd
    Inventors: Noorman Abu Hassan, Chak Choy Yuen
  • Patent number: 6019996
    Abstract: A wound dressing has a wound-contact layer formed from a polyurethane foam. The foam comprises one part by weight of the reaction product of an isocyanate-capped prepolymer with water (and optionally other hydroxy-functional compounds), and from 0.03 to 0.3 parts by weight of a natural or synthetic rubber. The isocyanate-capped prepolymer is preferably an isocyanate-capped ethyleneoxy/propyleneoxy copolymer, and the rubber is preferably an acrylic rubber.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: February 1, 2000
    Assignee: Johnson & Johnson Medical, Inc.
    Inventor: Catherine Louise Cheong
  • Patent number: 6015844
    Abstract: A composite surgical material comprising a collagen matrix reinforced by a layer of a synthetic bioabsorbable material such as polylactide/polyglycolide or oxidised regenerated cellulose, and wherein oil droplets are dispersed in the collagen matrix. The oil droplets comprise 1% to 75% of the weight of the composite and result in improved leak-proofing of the composite. The composite, in the form of a sheet or a tube, is especially useful as a temporary, fully bioabsorbable prosthesis, for membranes or blood vessels where a highly leak-proof prosthesis is required. The invention also provides a method of making a composite surgical material comprising the steps of: providing a layer of a synthetic bioabsorbable material; providing a dispersion of collagen in an oil-in-water emulsion; coating at least one face of the layer of synthetic bioabsorbable material with the said dispersion; and drying the composite material thus obtained.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: January 18, 2000
    Assignee: Johnson & Johnson Medical, Inc.
    Inventors: Wilson Harvey, Nicholas D. Light, Carla A. Haynes
  • Patent number: 6001259
    Abstract: A system for preparing autologous plasma comprises a single use filter unit having two inlets in fluid communication with each other, an outlet, and a filtration membrane selectively permeable to blood plasma separating the inlets from the outlet. Manually operable, single use pumps, preferably syringes, connect to the inlets. A flow path is defined along the membrane between the pumps, whereby, whole blood can be repeatedly exchanged between the two pumps, past the membrane, to cause plasma to flow across the membrane and out of the outlet. A syringe can collect plasma from the outlet. Plasma thus collected can be simultaneously applied with a thrombin solution to a site on the body, thereby forming a fibrin gel.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: December 14, 1999
    Assignee: Johnson & Johnson Medical, Inc.
    Inventor: Elaine Whitmore
  • Patent number: 6001895
    Abstract: A composite surgical material comprising a collagen matrix reinforced by a layer of a synthetic bioabsorbable material such as polylactide/polyglycolide or oxidized regenerated cellulose, and wherein oil droplets are dispersed in the collagen matrix. The oil droplets comprise 1% to 75% of the weight of the composite and result in improved leak-proofing of the composite. The composite, in the form of a sheet or a tube, is especially useful as a temporary, fully bioabsorbable prosthesis, for membranes or blood vessels where a highly leak-proof prosthesis is required. The invention also provides a method of making a composite surgical material comprising the steps of: providing a layer of a synthetic bioabsorbable material; providing a dispersion of collagen in an oil-in-water emulsion; coating at least one face of the layer of synthetic bioabsorbable material with the said dispersion; and drying the composite material thus obtained.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: December 14, 1999
    Assignee: Johnson & Johnson Medical, Inc.
    Inventors: Wilson Harvey, Nicholas D. Light, Carla A. Haynes