Patents Assigned to ConvaTec Technologies Inc.
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Patent number: 8888739Abstract: 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: GrantFiled: November 15, 2012Date of Patent: November 18, 2014Assignee: ConvaTec Technologies, Inc.Inventors: Christopher Gregory, Yun Jin, John B. Cline
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Patent number: 8858520Abstract: 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 In order to release the fastening without further surgery, the filament is withdrawn by pulling on a proximal portion outside the body.Type: GrantFiled: April 21, 2009Date of Patent: October 14, 2014Assignee: Convatec Technologies Inc.Inventor: Christopher Gregory
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Patent number: 8845606Abstract: 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: GrantFiled: September 9, 2010Date of Patent: September 30, 2014Assignee: Convatec Technologies Inc.Inventors: Tinh Nguyen-Demary, John Cline, John Blum, Gary Stacey, Philip Davies, Trevor Beckett
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Patent number: 8728513Abstract: 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: GrantFiled: February 14, 2013Date of Patent: May 20, 2014Assignee: Convatec Technologies Inc.Inventor: David Malcolm Woods
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Patent number: 8708987Abstract: 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: GrantFiled: November 30, 2009Date of Patent: April 29, 2014Assignee: Convatec Technologies Inc.Inventors: Kathryn Cramer, George Fattman, Tinh Nguyen-DeMary
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Patent number: 8691266Abstract: 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: GrantFiled: June 30, 2006Date of Patent: April 8, 2014Assignee: Convatec Technologies, Inc.Inventors: June Michaela Gladman, Bryan Griffiths
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Patent number: 8684982Abstract: 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: GrantFiled: October 26, 2011Date of Patent: April 1, 2014Assignee: Convatec Technologies Inc.Inventors: Tinh Nguyen-DeMary, Mingliang Lawrence Tsai
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Patent number: 8679581Abstract: 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: GrantFiled: July 7, 2010Date of Patent: March 25, 2014Assignee: Convatec Technologies, Inc.Inventors: Mahesh Sambasivam, James Crivello
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Publication number: 20140052063Abstract: 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: ApplicationFiled: November 15, 2012Publication date: February 20, 2014Applicant: ConvaTec Technologies, Inc.Inventors: Christopher Gregory, Yun Jin, John B. Cline
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Patent number: 8637072Abstract: 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: GrantFiled: March 18, 2009Date of Patent: January 28, 2014Assignee: Convatec Technologies, Inc.Inventors: David Kershaw, Barry DeBoorder, Stephen John Law
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Publication number: 20130217649Abstract: 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: ApplicationFiled: February 14, 2013Publication date: August 22, 2013Applicant: ConvaTec Technologies Inc.Inventor: ConvaTec Technologies Inc.
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Patent number: 8500707Abstract: 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: GrantFiled: April 7, 2009Date of Patent: August 6, 2013Assignee: Convatec Technologies Inc.Inventor: Kimberly Murray
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Publication number: 20130152309Abstract: 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: ApplicationFiled: February 14, 2013Publication date: June 20, 2013Applicant: ConvaTec Technologies Inc.Inventor: ConvaTec Technologies Inc.
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Patent number: 8460259Abstract: 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: GrantFiled: November 1, 2011Date of Patent: June 11, 2013Assignee: ConvaTec Technologies, Inc.Inventor: Mingliang Lawrence Tsai
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Patent number: 8439883Abstract: 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: GrantFiled: November 19, 1998Date of Patent: May 14, 2013Assignee: Convatec Technologies, Inc.Inventor: Kenneth A. Johnsen
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Publication number: 20130085463Abstract: 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: ApplicationFiled: September 29, 2011Publication date: April 4, 2013Applicant: ConvaTec Technologies Inc.Inventors: Marc Lesko, Mingliang Lawrence Tsai, Gary Oberholtzer
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Patent number: 8404921Abstract: 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: GrantFiled: June 6, 2008Date of Patent: March 26, 2013Assignee: ConvaTec Technologies, Inc.Inventors: Bryony Jayne Lee, Janette Rogers
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Patent number: 8388586Abstract: 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: GrantFiled: February 21, 2008Date of Patent: March 5, 2013Assignee: ConvaTec Technologies, Inc.Inventor: Bret Weig
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Patent number: 8382732Abstract: 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: GrantFiled: August 18, 2008Date of Patent: February 26, 2013Assignee: ConvaTec Technologies Inc.Inventors: Gary Oberholtzer, Kenneth Johnsen
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Patent number: D686738Type: GrantFiled: July 29, 2010Date of Patent: July 23, 2013Assignee: 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