Patents Assigned to ConvaTec Technologies Inc.
  • Ostomy appliance
    Patent number: 9707120
    Abstract: An ostomy appliance comprises a pouch having first and second walls, with an inlet aperture in the first wall. A stoma seal is carried by the second wall, and is disposed generally in register with the inlet aperture for sealing against a stoma in use. An outer coupling element is coupled to the first wall and surrounds the inlet aperture. An inner coupling element for supporting the stoma seal, is coupled to the second wall and/or to the stoma seal. The outer coupling element surrounds a periphery of the inner coupling element. The stoma seal may be of an inflatable type or an insertable type. Manipulation tabs may be provided associated with the inner and outer coupling elements.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: July 18, 2017
    Assignee: Convatec Technologies Inc.
    Inventors: Tinh Nguyen-DeMary, Mingliang Lawrence Tsai
  • Composition comprising antimicrobial metal ions and a quaternary cationic surfactant
    Patent number: 9675077
    Abstract: The present invention relates to an antimicrobial composition suitable for use on skin and wounds comprising a source of an antimicrobial metal ion and a quaternary cationic surfactant.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: June 13, 2017
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventor: David Parsons
  • Antimicrobial composition
    Patent number: 9669001
    Abstract: A composition for use on skin and wounds, comprising a photo-catalyst which is capable of preferentially staining biofilms the composition being for use in the diagnosis and treatment of biofilms in wounds.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: June 6, 2017
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Phillip Godfrey Bowler, Daniel Gary Metcalf, David Parsons
  • Self-closing bag connector
    Patent number: 9669205
    Abstract: A bag connector system includes a first coupling element, with a self-closing seal and a housing having a fluid inlet port and a fluid outlet port, and a second coupling element, with a housing having a fluid inlet end and a fluid outlet end. The fluid inlet end is configured to displace the self-closing seal when inserted into the fluid outlet port of the first coupling element. A bag connector system optionally includes a locking mechanism to maintain the first coupling element and second coupling element in a coupled state. Uncoupling of the first and second coupling elements results in minimal fluid contamination on the outer surfaces of the coupling elements. The bag connector systems provided herein are included in medical appliances for waste management.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: June 6, 2017
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Yun Jin, Bret Alexander Weig, John Cline, Mingliang Lawrence Tsai
  • Drainable ostomy pouch
    Patent number: 9668910
    Abstract: A drainable ostomy pouch includes a collection portion and a drain chute portion extending from the collection portion and having a discharge opening for permitting emptying of contents from the pouch. The drain chute is foldable between an open condition in which the drain chute portion is extended from the collection portion, and a closed condition in which the drain chute portion is folded towards the collection portion. At least one flap retains the folded drain chute portion.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: June 6, 2017
    Assignee: Convatec Technologies Inc.
    Inventor: Kimberly Murray
  • Seal for controlled evacuation ostomy appliance
    Patent number: 9636249
    Abstract: A stoma seal is described for a controlled evacuation ostomy appliance. The stoma seal may have a liquid-responsive property, such as hydrophobic, hydrophilic or absorptive. The stoma seal may have a non-smooth surface, e.g., at a microstructure scale. The non-smooth surface may consist of tortuous channels, protruding seals, or a confronting apertured or porous layer. The liquid-responsive property and/or the non-smooth surface may facilitate separation of flatus from faecal matter and/or facilitate venting of flatus while obstructing stool.
    Type: Grant
    Filed: August 10, 2005
    Date of Patent: May 2, 2017
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Geraint Davies, John Cline, Christopher C. Gregory, Alan Cucknell, Julian Scarfe, Pete Cauwood
  • Apparatus for preventing over inflation of the retention balloon in medical catheters and airway devices
    Patent number: 9623201
    Abstract: The body has a fluid inlet port for receiving pressurized fluid and a fluid outlet port connected to the retention balloon. A first passage connects the fluid inlet port and the fluid outlet port. A second passage in the body is connected to the balloon fluid return path and is at the pressure of the retention balloon. A valve prevents fluid flow through the first passage when actuated. The valve includes a pressure-responsive member movable to a position to obstruct fluid flow in response to fluid pressure in the second passage exceeding the predetermined level. Flexible means such as a membrane defines a normally open portion of the first fluid passage, which is closed by the moveable means bearing on the membrane when pressure exceeding the predetermined level actuates the valve.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: April 18, 2017
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Christopher Gregory, Yun Jin, John B. Cline
  • OSTOMY POUCH FILTER SYSTEM
    Publication number: 20170042723
    Abstract: Ostomy appliances with a filter system that is resistant to clogging by waste expelled by the stoma are provided for waste management.
    Type: Application
    Filed: April 24, 2015
    Publication date: February 16, 2017
    Applicant: CONVATEC TECHNOLOGIES INC.
    Inventors: Gary OBERHOLTZER, Mark Lesko
  • Yarn comprising gel-forming filaments or fibres
    Patent number: 9562305
    Abstract: A yarn comprising gel forming filaments or fibers particularly one used to make a woven or knitted wound dressing or other gelling fabric structure. The invention provides a yarn comprising a blend of from 30% to 100% by weight of gel-forming fibers and 0% to 70% by weight of textile fibers. Process for making the yarns are also described including those using rotor spinning.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: February 7, 2017
    Assignee: Convatec Technologies Inc.
    Inventors: Wayne Bonnefin, Sarah Wroe, Amelia Prentice
  • Antimicrobial composition
    Patent number: 9545390
    Abstract: An antiseptic composition suitable for use on skin and wounds comprising a source of an antimicrobial agent and an agent which disrupts biofilms. More, particularly the invention relates to a composition capable of providing effective antimicrobial activity while at the same time avoiding wound and skin irritation and retardation of wound healing.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: January 17, 2017
    Assignee: Convatec Technologies Inc.
    Inventors: Steven L. Percival, Phillip G. Bowler, David Parsons
  • Wound exudate monitor accessory
    Patent number: 9526816
    Abstract: A stand-alone system for assessing wound exudates from the wound of a patient is described. The system contains functionality to detect, process and report various wound parameters. The system also may make treatment determinations based on these findings. The system may detect one or more physiological values of the wound exudates from the wound of the patient. The system may also compare detected physiological values to predetermined physiological values, in order to obtain a comparison result in real time. The system may include a processor (15) which provides an electronic signal based on the comparison result in which the electronic signal may corresponds to guidelines for treating the wound (3). The system described may be an accessory, which may be used on its own, or in conjunction with other wound treatment devices (9).
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: December 27, 2016
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventor: Landy Aaron Toth
  • Ostomy pouch appliance
    Patent number: 9498372
    Abstract: A coupling assembly for fastening an adhesive wafer to an ostomy appliance device, the coupling assembly including a captive connection between the adhesive wafer and ostomy appliance that permits captive relative displacement between the entire adhesive wafer and the entrance aperture of the appliance, to facilitate access to the wafer from the non-body-contacting side. The coupling assembly further comprises a fixation coupling for fixing the adhesive wafer in the operative position.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: November 22, 2016
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: George Fattman, Gary Oberholtzer
  • Vacuum wound dressing
    Patent number: 9381283
    Abstract: Provided, in one embodiment, is a vacuum wound dressing for covering a wound bed comprising: a wound contact layer comprising a fibrous blend or fibrous material that forms a cohesive gel when wetted by wound exudate; a source of vacuum situated to be separated from the wound bed by the wound contact layer; and a vacuum sealing layer covering the wound contact layer and adapted to retain relative vacuum in the wound contact layer, wherein (i) the dressing is essentially missing a non-gelling, foam layer in which the source of vacuum is situated or (ii) the vacuum sealing layer comprises as an outer layer a foam layer.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: July 5, 2016
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Simon Adams, Stephen Bishop, Bryan Griffiths, Helen Shaw
  • Dissolution and processing of cellulose
    Patent number: 9358251
    Abstract: The invention relates to a method for dissolving the components of gel forming materials suitable for use in wound care comprising the steps of admixing said components with an ionic liquid. The ionic liquid may be selected from the group of tertiary amine N-oxides, N,N-dimethyl formamide/nitrogen tetroxide mixtures, dimethyl sulphoxide/paraformaldehyde mixtures and solutions of limium chloride in N,N-dimethyl acetamide or N-methyl pyrrolidone.
    Type: Grant
    Filed: November 22, 2007
    Date of Patent: June 7, 2016
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: David Kershaw, Simon Adams
  • Silver containing wound dressing
    Patent number: 9345805
    Abstract: A wound dressing having anti-microbial activity comprises a first fiber capable of bonding with silver (1) cations. The wound dressing comprises a blend of the first fiber to which silver (1) cations are bonded and a second fiber which is substantially free from silver. The wound dressing comprises from 0.01 to 5.0 percent by weight of silver (1) cations, based on the weight of fiber.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: May 24, 2016
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventor: David Malcolm Woods
  • Amphiphilic pressure sensitive adhesives for human skin adhesion
    Patent number: 9346982
    Abstract: The present invention relates to amphiphilic pressure sensitive adhesives, specifically, pressure sensitive adhesives with amphiphilic copolymers which improve adhesion under moist environment. The amphiphilic copolymers comprise at least one hydrophobic acrylic monomer or oligomer and at least one hydrophilic or amphiphilic monomer or oligomer. The present invention also relates to the use of such adhesives in securing medical devices to human skin.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: May 24, 2016
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Mahesh Sambasivam, Xiang Yu, Joseph C Salamone, Ann Beal Salamone
  • FIBRES, A PROCESS FOR PRODUCING SUCH FIBRES AND A WOUND DRESSING INCORPORATING THEM
    Publication number: 20160121013
    Abstract: Multi component fibres for the reduction of the damaging activity of wound exudate components such as protein degrading enzymes and inflammatory mediators in wounds, the fibres comprising: from 10% to 100% by weight of the fibres of pectin and a sacrificial proteinaceous material in a weight ratio of 100:0 to 10:90 pectin to sacrificial proteinaceous material and from 0% to 90% by weight of the fibres of another polysaccharide or a water soluble polymer.
    Type: Application
    Filed: July 22, 2011
    Publication date: May 5, 2016
    Applicant: CONVATEC TECHNOLOGIES INC.
    Inventors: Lucy Louisa Ballamy, Sharon Lam Po Tang, Marion Herbe, Alan Rogers, Sean Kelly
  • Wound dressing material
    Patent number: 9326894
    Abstract: A material for use as a wound dressing, the material being in the form of a roll and comprising gel forming fibers and the material having lines of longitudinal stitching.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: May 3, 2016
    Assignee: Convatec Technologies, Inc.
    Inventors: June Michaela Gladman, Bryan Griffiths
  • Aspirated wound dressing
    Patent number: 9259558
    Abstract: A wound dressing for an aspirated wound dressing system, with a wound interface region for contacting or facing a wound site; an aspiration port for receiving suction for aspiration of wound exudate; a liquid permeable pressure barrier disposed between the wound interface region and the aspiration port for substantially preventing application of negative pressure from the aspiration port to the wound interface region; at least one atmospheric vent for equalizing with atmosphere the pressure at the wound interface region; and a liquid sensor for sensing liquid within the wound dressing for controlling application of suction by the aspiration unit.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: February 16, 2016
    Assignee: CONVATEC TECHNOLOGIES, INC.
    Inventor: Mingliang Lawrence Tsai
  • ONE PIECE OSTOMY POUCH ENHANCEMENTS
    Publication number: 20150320585
    Abstract: Provided herein are methods and devices for performing in situ patterned chemistry for synthesizing and preparing peptide arrays. The invention provides a reproducible and scalable platform that can be potentially used to monitor the health of a plurality of individuals.
    Type: Application
    Filed: November 20, 2013
    Publication date: November 12, 2015
    Applicant: ConvaTec Technologies Inc.
    Inventors: George FATTMAN, Kimberly MURRAY, Marc LESKO, Thomas HARRIT, Nicolani SORENSEN