Patents Assigned to ConvaTec Technologies Inc.
  • Antimicrobial composition
    Patent number: 9149035
    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: December 14, 2006
    Date of Patent: October 6, 2015
    Assignee: CONVATEC TECHNOLOGIES, INC.
    Inventors: Steven L. Percival, Phillip G. Bowler, David Parsons
  • Silver containing wound dressing
    Patent number: 9066989
    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: May 16, 2014
    Date of Patent: June 30, 2015
    Assignee: Convatec Technologies Inc.
    Inventor: David Malcolm Woods
  • APPARATUS FOR PREVENTING OVER INFLATION OF THE RETENTION BALLOON IN MEDICAL CATHETERS AND AIRWAY DEVICES
    Publication number: 20150051542
    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: Application
    Filed: July 25, 2014
    Publication date: February 19, 2015
    Applicant: CONVATEC TECHNOLOGIES INC.
    Inventors: Christopher Gregory, Yun Jin, John B. Cline
  • Seal for a rectal or ostomy appliance
    Patent number: 8939952
    Abstract: A rectal appliance with a tubular member defining a communication passage for body waste, and first and second inflatable chamber portions carried on the tubular member for forming internal and external seals with respect to the anus. One or both of the inflatable chamber portions have a partly flared shape. The second inflatable chamber portion has a low external profile, and a concave sealing surface. The inflatable chamber portions are defined at least partly by a common flexible membrane that is constrained near a middle region to define a narrow waist between the two inflatable chamber portions.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: January 27, 2015
    Assignee: Convatec Technologies Inc.
    Inventor: Bret Weig
  • Drainable ostomy pouch with concealed drain chute
    Patent number: 8905987
    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: April 7, 2009
    Date of Patent: December 9, 2014
    Assignee: Convatec Technologies Inc.
    Inventor: Kimberly Murray
  • Apparatus for preventing over inflation of the retention balloon in medical catheters and airway devices
    Patent number: 8888739
    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: November 15, 2012
    Date of Patent: November 18, 2014
    Assignee: ConvaTec Technologies, Inc.
    Inventors: Christopher Gregory, Yun Jin, John B. Cline
  • Temporary ostomy appliance
    Patent number: 8858520
    Abstract: A temporary ostomy appliance is disclosed, including a catheter for extending through the abdominal wall into the intestine. The catheter may be a transcecal catheter for extending through the cecal valve into the ileum. A portion of a catheter that extends through the cecal valve is made collapsible when the catheter is empty. The collapsed portion expands to permit passage of effluent. A balloon carried on the catheter is preformed with a shape and size in order to permit inflation without elastic stretching of the balloon wall material. A filament is provided for permitting a portion of the catheter to be fastened to internal body tissue by surgical sutures or staples. In order to release the fastening without further surgery, the filament is withdrawn by pulling on a proximal portion outside the body.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: October 14, 2014
    Assignee: Convatec Technologies Inc.
    Inventor: Christopher Gregory
  • Controlled discharge ostomy appliance and shield therefor
    Patent number: 8845606
    Abstract: A controlled discharge ostomy appliance assembly comprises (i) a stoma seal that is self-urging with a dynamic damping characteristic that resists changes of seal volume, (ii) a press-fit coupling member displaceable from an unlocked position to a locked position as part of a press-fit process, and (iii) a single-use frangible portion. The assembly further includes a protector shield removably fastened to the appliance forming a combined assembly therewith. The protector shield comprises (i) a seal displacer manipulable for displacing the stoma seal to a non-operative position ready for fitting, (ii) a substantially rigid coupling member guard portion for protecting the state of the coupling member, and (iii) a bracing portion for bracing the single-use frangible portion.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: September 30, 2014
    Assignee: Convatec Technologies Inc.
    Inventors: Tinh Nguyen-Demary, John Cline, John Blum, Gary Stacey, Philip Davies, Trevor Beckett
  • HIGH BARRIER ELASTOMER FECAL CATHETER OR OSTOMY POUCH
    Publication number: 20140288517
    Abstract: A fecal catheter or ostomy pouch made of an odor barrier material including a thermoplastic elastomer, odor barrier modifier and an antiblocking agent.
    Type: Application
    Filed: March 16, 2012
    Publication date: September 25, 2014
    Applicant: CONVATEC TECHNOLOGIES INC.
    Inventors: Mingliang Lawrence Tsai, Tinh Nguyen-Demary
  • WOUND DRESSING MATERIAL
    Publication number: 20140251194
    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: Application
    Filed: April 4, 2014
    Publication date: September 11, 2014
    Applicant: CONVATEC TECHNOLOGIES, INC.
    Inventors: June Michaela Gladman, Bryan Griffiths
  • SILVER CONTAINING WOUND DRESSING
    Publication number: 20140256676
    Abstract: A wound dressing having anti-microbial activity comprises a first fibre capable of bonding with silver (1) cations. The wound dressing comprises a blend of the first fibre to which silver (1) cations are bonded and a second fibre 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 fibre.
    Type: Application
    Filed: May 16, 2014
    Publication date: September 11, 2014
    Applicant: CONVATEC TECHNOLOGIES INC.
    Inventor: David Malcolm WOODS
  • DRESSING
    Publication number: 20140228794
    Abstract: The invention relates to a chemically modified cellulose based dressing particularly for use in the dressing of wounds but also for use as a packing material. Dressings according to the invention seek to mitigate the problems associated with shrinkage encountered with fibrous dressings made of gel-forming fibres and comprise a compressed body of chemically modified polysaccharide having a density of at least 0.08 g/cm3.
    Type: Application
    Filed: August 2, 2012
    Publication date: August 14, 2014
    Applicant: CONVATEC TECHNOLOGIES INC.
    Inventors: Wayne Bonnefin, Lucy Ballamy
  • COMPOSITION FOR DETECTING BIOFILMS ON VIABLE TISSUES
    Publication number: 20140161728
    Abstract: A staining composition for use in making biofilm detectable on viable tissue wherein the composition preferentially stains the biofilm and comprises a staining agent in a quantity effective to stain said biofilm and render it detectable.
    Type: Application
    Filed: November 30, 2011
    Publication date: June 12, 2014
    Applicant: CONVATEC TECHNOLOGIES INC.
    Inventors: Phillip Godfrey Bowler, Daniel Gary Metcalf, David Parsons, Emily Sonia Johnson
  • Silver containing wound dressing
    Patent number: 8728513
    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: February 14, 2013
    Date of Patent: May 20, 2014
    Assignee: Convatec Technologies Inc.
    Inventor: David Malcolm Woods
  • Ostomy appliance with moldable adhesive
    Patent number: 8708987
    Abstract: A body fitment for an ostomy appliance comprises an adhesive wafer including a moldable region shapable by the user. A removable release liner covering an external adhesive surface of the wafer is configured to permit molding of the moldable region by manually manipulating the adhesive through the release liner, and/or with removable segments. In an alternative form, an interior release liner is removable through the entrance aperture of the wafer, by pulling on a grip portion that protrudes through the entrance aperture. In an alternative form, an ostomy pouch includes a finger pocket in a front pouch wall, for permitting insertion of a finger tip for molding the moldable region of an adhesive wafer that is secured around a stomal aperture in a rear pouch wall.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: April 29, 2014
    Assignee: Convatec Technologies Inc.
    Inventors: Kathryn Cramer, George Fattman, Tinh Nguyen-DeMary
  • VALVE SYSTEM FOR INFLATABLE MEDICAL DEVICE
    Publication number: 20140107572
    Abstract: The present invention relates to a valve system for an inflatable portion of an indwelling medical device and more particularly to a valve system for fluid regulation of a catheter comprising a fluid inflatable portion that undergoes pressure changes within the body during use. The present invention also relates to methods of treatment using said valve system and indwelling medical devices comprising said valve systems.
    Type: Application
    Filed: February 16, 2012
    Publication date: April 17, 2014
    Applicant: CONVATEC TECHNOLOGIES INC.
    Inventors: Yun Jin, Christopher Gregory
  • Wound dressing material
    Patent number: 8691266
    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: June 30, 2006
    Date of Patent: April 8, 2014
    Assignee: Convatec Technologies, Inc.
    Inventors: June Michaela Gladman, Bryan Griffiths
  • Controlled evacuation ostomy appliance
    Patent number: 8684982
    Abstract: A controlled evacuation ostomy appliance comprises a pouch having a non-entrant stoma seal and a retainer for retaining the lower portion of the pouch in the folded-up condition. The appliance optionally includes a body fitment that may include a region of manually moldable adhesive for forming a custom fit at the stoma.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: April 1, 2014
    Assignee: Convatec Technologies Inc.
    Inventors: Tinh Nguyen-DeMary, Mingliang Lawrence Tsai
  • APPARATUS FOR MONITORING INTRA-ABDOMINAL PRESSURE
    Publication number: 20140088455
    Abstract: An improved apparatus for monitoring the intra-abdominal pressure of a hospitalized patient includes a urinary catheter connected to a urine valve having selectable communication positions between a discharge end of the urinary catheter and either a drain or a fluid source. Preferably, the urine valve has a housing adapted to resist patient discomfort from leg-valve contact. One operable protective housing may be embodied as a separate tray component. Plumbing structure desirably maintains fluid supply and drain conduits in a substantially parallel arrangement to assist routing those conduits between a patient's legs. When the urine valve is oriented for communication to the fluid source, an infusion pump may be used to introduce a known quantity of fluid through the urine valve and into the patient's bladder where the fluid's pressure can be measured.
    Type: Application
    Filed: November 26, 2013
    Publication date: March 27, 2014
    Applicant: CONVATEC TECHNOLOGIES INC.
    Inventors: Mark A. CHRISTENSEN, Timothy R. WOLFE, Perry W. CROLL, Marshall T. DENTON, Edward J. KIMBALL
  • Amphiphilic silicone copolymers for pressure sensitive adhesive applications
    Patent number: 8679581
    Abstract: Silicone pressure sensitive adhesive compositions including amphiphilic copolymers. The amphiphilic copolymers are based on a polydimethylhydrogensiloxane or polydimethylsiloxane based macroinitiator. A medical device including said pressure sensitive adhesive compositions for securing the device to human skin or tissue.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: March 25, 2014
    Assignee: Convatec Technologies, Inc.
    Inventors: Mahesh Sambasivam, James Crivello