Patents Assigned to ConvaTec Technologies Inc.
  • 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
  • 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 In order to release the fastening without further surgery, the filament is withdrawn by pulling on a proximal portion outside the body.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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Publication number: 20140052063
    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: November 15, 2012
    Publication date: February 20, 2014
    Applicant: ConvaTec Technologies, Inc.
    Inventors: Christopher Gregory, Yun Jin, John B. Cline
  • Patent number: 8637072
    Abstract: The present invention relates to wound dressings, in particular to an antibacterial wound dressing based on silvered gel-forming fabric and to a process for the manufacture of such a wound dressing.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: January 28, 2014
    Assignee: Convatec Technologies, Inc.
    Inventors: David Kershaw, Barry DeBoorder, Stephen John Law
  • Publication number: 20130217649
    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: February 14, 2013
    Publication date: August 22, 2013
    Applicant: ConvaTec Technologies Inc.
    Inventor: ConvaTec Technologies Inc.
  • Patent number: 8500707
    Abstract: A drainable ostomy pouch includes a collection portion and a drain chute extending from the collection portion 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 is extended from the collection portion, and a closed condition in which the drain chute is folded towards the collection portion; and a pocket for receiving at least a portion of the drain chute when the drain chute is in its closed condition.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: August 6, 2013
    Assignee: Convatec Technologies Inc.
    Inventor: Kimberly Murray
  • Publication number: 20130152309
    Abstract: An antibacterial wound dressing is based on or derived from gel-forming fibres such as carboxymethyl cellulose or alginate fibres having silver ions linked thereto at some but not all of the exchangeable sites such that the distribution of silver ions over the exchangeable sites is substantially uniform. The silvered fibres for the wound dressing can be prepared by contacting an assembly of precursor gel-forming fibres having exchangeable sites under conditions which do not cause irreversible gelling of the fibres with an amount of a solution containing silver ions so as to link silver ions at some but not all of the exchangeable sites, the whole of the assembly of precursor gel-forming fibres being contacted essentially simultaneously with the entire solution containing silver ions.
    Type: Application
    Filed: February 14, 2013
    Publication date: June 20, 2013
    Applicant: ConvaTec Technologies Inc.
    Inventor: ConvaTec Technologies Inc.
  • Patent number: 8460259
    Abstract: A controlled discharge ostomy appliance is described for use with an adhesive body fitment. The body fitment comprises an adhesive wafer having a stomal aperture that is manually shapeable by folding or rolling back a rim portion of the adhesive around the stomal aperture.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: June 11, 2013
    Assignee: ConvaTec Technologies, Inc.
    Inventor: Mingliang Lawrence Tsai
  • Patent number: 8439883
    Abstract: The ostomy system includes a pouch that is adhesively coupled to a mounting wafer. The mounting wafer has a landing zone film formed of releasable plastic and the pouch has a face plate with a resealable adhesive that secures to the landing zone of the mounting wafer. The landing zone of the mounting wafer includes one portion that is immovable with respect to the body surface that the mounting wafer is secured to and another portion that is deflectable away from the body surface. The deflectable portion of the landing zone, also referred to as the floating landing zone, is sized for gripping between the fingers during pouch separation from the mounting wafer. Gripping of the floating landing zone during pouch separation helps isolate the pouch separation force from the abdominal area underlying the mounting wafer. The mounting wafer also includes indicia border lines that facilitate alignment of the pouch face plate with the mounting wafer.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: May 14, 2013
    Assignee: Convatec Technologies, Inc.
    Inventor: Kenneth A. Johnsen
  • Publication number: 20130085463
    Abstract: An ostomy appliance including an ostomy pouch with a filter and a center pleated panel to protect the filter, facilitate deodorization and deter ballooning.
    Type: Application
    Filed: September 29, 2011
    Publication date: April 4, 2013
    Applicant: ConvaTec Technologies Inc.
    Inventors: Marc Lesko, Mingliang Lawrence Tsai, Gary Oberholtzer
  • Patent number: 8404921
    Abstract: The present invention relates to a wound dressing and in particular a wound dressing for application to the sacrum of a patient. The wound dressing is an absorbent pad having one or more lines about which the dressing can fold.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: March 26, 2013
    Assignee: ConvaTec Technologies, Inc.
    Inventors: Bryony Jayne Lee, Janette Rogers
  • Patent number: 8388586
    Abstract: An ostomy appliance is disclosed with an inflatable seal for sealing against the stoma. The inflatable seal has a first inflatable chamber portion for fitting inside the stoma to seal against the internal tissue. The inflatable seal also has a second inflatable chamber portion for sealing externally against the stoma and peristomal skin. In one embodiment, a tube extends through the inflatable seal to provide a communication passage for discharge of body waste without removing the inflatable seal. The tube floats with respect to an adhesive mounting member to allow a waist between the first and second inflatable chamber portions to self-locate in the stoma.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: March 5, 2013
    Assignee: ConvaTec Technologies, Inc.
    Inventor: Bret Weig
  • Patent number: 8382732
    Abstract: An ostomy coupling is disclosed comprising a floatable coupling part. The coupling part is supported with respect to an adhesive wafer by means of a flexible support collar that permits displacement of the coupling part in a floatable manner. The flexible collar comprises plastics film and has bistable shapes. The collar is configured to hold the coupling part stably in (i) an extended position spaced from the adhesive wafer, to facilitate an ostomate to manually brace the coupling part in order to relieve the attachment force when an ostomy appliance is press fitted to the coupling part, and (ii) in a retracted position close to the adhesive wafer.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: February 26, 2013
    Assignee: ConvaTec Technologies Inc.
    Inventors: Gary Oberholtzer, Kenneth Johnsen
  • Patent number: D686738
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: July 23, 2013
    Assignee: ConvaTec Technologies Inc.
    Inventors: Ian Tabron, Wayne Bonnefin, Andrew Lewis Heveran, Scott Robert Ian Henshaw, Susanne Wedbjer, Thomas Bergens, Jochen Ratjen, Anders Boström, Stefan Lööf, Johan Svard