Patents Assigned to ConvaTec Technologies Inc.
  • Patent number: 11426485
    Abstract: A silicone pressure sensitive adhesive with amphiphilic copolymers for maintaining adhesion in a moist environment. The amphiphilic copolymers for silicone adhesives include at least one silicone moiety and at least one hydrophilic segment. Such adhesives are applicable to securing medical devices to human skin.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: August 30, 2022
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Mahesh Sambasivam, Joseph C. Salamone, Ann Beal Salamone, Xiang Yu
  • Patent number: 11286601
    Abstract: A chemically modified cellulosic fibre or filament having a moisture content of at least 7% by weight obtained by a process comprising the steps of (i) obtaining cellulosic fibres or filament and chemically modifying the cellulose by substitution to increase its absorbency; (ii) washing the fibres after step (i) in a mixture comprising water and up to 99% by weight of water-miscible organic solvent; (iii) drying the fibres to a moisture content of at least 7% by weight.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: March 29, 2022
    Assignee: CONVATEC TECHNOLOGIES, INC.
    Inventors: Wayne Lee Bonnefin, Lucy Louisa Ballamy, Sarah Wroe, David Parsons, Garry Storey, Joseph Thompson
  • Patent number: 11266774
    Abstract: A fluid collection apparatus for use in negative pressure wound therapy. The fluid collection apparatus includes a flexible bag having a first opening and a second opening. The bag includes a structure defining a fluid pathway connecting the first opening and the second opening. The pathway is circulative and contributes to orientation independence of the bag in use. The bag further includes a load-bearing component.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: March 8, 2022
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Robert Gordon Maurice Selby, Lawrence Mark Baker, Steven Paul Gowers
  • Patent number: 11241525
    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: April 15, 2020
    Date of Patent: February 8, 2022
    Assignee: ConvaTec Technologies Inc.
    Inventor: Landy Aaron Toth
  • Patent number: 11191661
    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: Grant
    Filed: November 9, 2018
    Date of Patent: December 7, 2021
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Mingliang Lawrence Tsai, Tinh Nguyen-DeMary
  • Patent number: 11187364
    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: December 17, 2019
    Date of Patent: November 30, 2021
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Yun Jin, Bret Alexander Weig, John Cline, Mingliang Lawrence Tsai
  • Patent number: 11166837
    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: Grant
    Filed: February 11, 2019
    Date of Patent: November 9, 2021
    Assignee: ConvaTec Technologies Inc.
    Inventors: Marc Lesko, Mingliang Lawrence Tsai, Gary Oberholtzer
  • Patent number: 11166838
    Abstract: A stoma adapter is described that is especially suited to a recessed stoma or a flush stoma. The stoma adapter effectively extends the discharge passage from the stoma, protects peristomal skin, and forms a bridge at the interface between the stoma and an ostomy appliance. The stoma adapter contains a substantially unobstructed discharge passage, at least for effluent flowing in a discharge direction. The stoma adapter includes a seal for sealing against the bowel wall. The stoma adapter has collapsing, expanding, flexible and reinforced designs.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: November 9, 2021
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: John Cline, Bret Weig, Christopher Gregory, John Blum
  • Patent number: 11135315
    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 the biofilm and render it detectable.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: October 5, 2021
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Phillip Godfrey Bowler, Daniel Gary Metcalf, David Parsons, Emily Sonia Johnson
  • Patent number: 11116884
    Abstract: An integrated system for assessing wound exudates from the wound of a patient is described. The system may contain 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 means for comparing the one or more 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 a comparison result in which the electronic signal may correspond to guidelines for treating the wound 13. The system may be integrated with other wound treatment devices, such as negative pressure wound therapy devices (NPWT) 9.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: September 14, 2021
    Assignee: ConvaTec Technologies Inc.
    Inventor: Landy Toth
  • Patent number: 11076978
    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: April 16, 2018
    Date of Patent: August 3, 2021
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Tinh Nguyen-Demary, John Cline, John Blum, Gary Stacey, Philip Davies, Trevor Beckett
  • Patent number: 11076979
    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: August 28, 2018
    Date of Patent: August 3, 2021
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: George Fattman, Gary Oberholtzer
  • Patent number: 11071640
    Abstract: Provided herein are controlled evacuation devices, ostomy devices, methods for the manufacture of such devices and the use of such devices.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: July 27, 2021
    Assignee: Convatec Technologies Inc.
    Inventors: George Fattman, Kimberly Murray, Marc Lesko, Thomas Harrit, Nicolani Sorensen
  • Patent number: 11039950
    Abstract: Described herein is a medical device with an opening system. The medical device is foldable from an open to a closed condition. It is secured in its closed condition. In certain embodiments, the medical device is an ostomy pouch.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: June 22, 2021
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: James D. Jones, Jr., Gary Oberholtzer
  • Patent number: 10968543
    Abstract: A wound dressing for use in vacuum wound therapy comprising a wound contact layer which is an open structure comprising a yarn comprising gel-forming filaments or fibres, the structure having a porosity which allows exudate to flow through it.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: April 6, 2021
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Wayne Bonnefin, Sarah Wroe, Amelia Prentice
  • Patent number: 10864107
    Abstract: A stoma extender includes a first end for insertion into a stoma for diverting stomal effluent into the stoma extender before the effluent exits the stoma; a second end for remaining external of the stoma, for providing a discharge exit for stomal effluent; and a conduit portion coupled between the first and second ends for communicating stomal effluent through the stoma extender, wherein the length of the conduit portion is adjustable stably, to permit adaptation of the stoma extender to an individual's stoma.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: December 15, 2020
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventor: Bret Weig
  • Patent number: 10842976
    Abstract: Valves and valve systems are provided that are useful for integration with inflatable indwelling medical devices to prevent over-inflation of retention balloon.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: November 24, 2020
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventor: Mingliang Lawrence Tsai
  • Patent number: 10779993
    Abstract: A wound exudate management system includes a pump for generating negative pressure, a dressing for covering and protecting a wound of a user, a tube including an interior lumen, the tube disposed between the pump and the dressing such that the pump and the dressing are in fluid communication via the interior lumen. The dressing includes an adhesive layer for adhering the dressing adjacent the wound, a wound contact layer, a pressure dispersion layer, a plurality of layers of absorbent material disposed between the wound contact layer and the pressure dispersion layer, a backing layer having a first surface and a second surface, the first surface of the backing layer being adjacent, and in contact with, the pressure dispersion layer and the adhesive layer, and a flexible connector disposed on the second surface of the backing layer.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: September 22, 2020
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventors: Stephen Bishop, Duncan Gilding, Bryony Lee, Shauna Powell
  • Patent number: 10780200
    Abstract: An apparatus (10) for controlling flow of fluid from a wound site of a patient may include a chamber (28) connectable to a wound site and a reservoir (16). The chamber (28) may have a first deformed state, and a second state in which it is not deformed or less deformed than in the first state. The chamber (28) may be adapted to manage fluid flow between the wound site and the reservoir (16) during transition of the chamber (28) between the first state and the second state. An actuator element (64) of the apparatus (10) may be adapted to operate on the chamber (28) to transition the chamber (28) from the second state to the first state.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: September 22, 2020
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventor: Landy Toth
  • Patent number: 10772755
    Abstract: The end of the elongated tubular element of the appliance that is designed to be inserted into a body cavity is formed entirely of soft, compliant material. That end carries an inflatable balloon made of non-expandable material, formed in the fully inflated shape, to prevent overexpansion. The balloon is inflated to a predetermined low pressure level to prevent pressure necrosis in the adjacent tissue. A method and apparatus for introducing the soft end of the appliance into the body cavity are also provided. The introducer apparatus includes rigid core surrounded by a soft, compliant sleeve. The sleeve extends beyond the rigid core to form an invertable section. The soft end of the appliance is situated adjacent the apparatus, the balloon is wrapped around the apparatus, and the sleeve section is inverted over the appliance, compressing the balloon and forming a soft, rounded insertion tip. The unit is then introduced into the body cavity.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: September 15, 2020
    Assignee: CONVATEC TECHNOLOGIES INC.
    Inventor: Christopher C. Gregory