Patents Assigned to Brightwake Limited
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Patent number: 11878108Abstract: An apparatus (1) for negative pressure wound therapy comprises a source of reduced pressure (10) and first (22a) and second (26a) chambers, the first chamber being in fluid communication with the source of reduced pressure such that a negative pressure may be generated in the first chamber, the negative pressure being prevented from exceeding a predetermined value by way of a pressure release means (30), and the second chamber comprising means (28) for establishing a fluid connection with a wound. A valve (24) between the first and second chambers permits the negative pressure in the second chamber to increase in response to an increase in the negative pressure in the first chamber and prevents the negative pressure in the second chamber from dropping in response to a drop in the negative pressure in the first chamber.Type: GrantFiled: February 15, 2018Date of Patent: January 23, 2024Assignee: BRIGHTWAKE LIMITEDInventors: Stephen Cotton, Matthew Tasker
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Patent number: 11452642Abstract: A non-adhesive absorbent wound dressing (10) is suitable for application about a jointed limb. The wound dressing (10) has a first portion (20) adapted to conform to and wrap around an upper part of the limb, a second portion (30) adapted to conform to and wrap around a lower part of the limb, and a hinge portion (40) between said first portion (20) and said second portion (30), said hinge portion (40) in use lying adjacent to the joint of the limb. The wound dressing (10) also comprises a porous wound contact sheet (80) and a substantially liquid-impermeable backing sheet (90), the wound contact sheet (80) and the backing sheet (90) being bounded (50) together at their periphery and along lines that define a plurality of pockets (60) in both the first portion (20) and the second portion (30), the pockets (60) containing absorbent material (70).Type: GrantFiled: December 21, 2018Date of Patent: September 27, 2022Assignee: BRIGHTWAKE LIMITEDInventor: Stephen Cotton
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Patent number: 10195087Abstract: A non-adhesive absorbent wound dressing (10) is suitable for application about a jointed limb. The wound dressing (10) has a first portion (20) adapted to conform to and wrap around an upper part of the limb, a second portion (30) adapted to conform to and wrap around a lower part of the limb, and a hinge portion (40) between said first portion (20) and said second portion (30), said hinge portion (40) in use lying adjacent to the joint of the limb. The wound dressing (10) also comprises a porous wound contact sheet (80) and a substantially liquid-impermeable backing sheet (90), the wound contact sheet (80) and the backing sheet (90) being bonded (50) together at their periphery and along lines that define a plurality of pockets (60) in both the first portion (20) and the second portion (30), the pockets (60) containing absorbent material (70).Type: GrantFiled: April 8, 2010Date of Patent: February 5, 2019Assignee: Brightwake LimitedInventor: Stephen Cotton
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Patent number: 10179332Abstract: A device for collecting cellular material from a fluid sample comprises first and second chambers that are releasably connected and which define a fluid flow path from the first chamber to the second chamber. A porous membrane is between the chambers when they are connected to each other, in the fluid flow path. An absorbent body is positioned in close proximity to the downstream surface of the porous membrane, and a resilient member is arranged to urge the absorbent body towards the porous membrane. In use, a sample introduced into the first chamber contacts the upstream surface of the porous membrane and fluid is drawn through the porous membrane and is absorbed by the absorbent body. Cellular material is retained upon the upstream surface of the porous membrane. After separation of the chambers, the porous membrane can be removed from the device for analysis of the deposited cellular material.Type: GrantFiled: June 30, 2015Date of Patent: January 15, 2019Assignee: Brightwake LimitedInventor: Stephen Cotton
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Patent number: 10172981Abstract: A device for the concentration of a mixture of fatty material and aqueous fluid comprises a chamber for receiving a mixture of fatty material and aqueous fluid, and a body of absorbent material, the chamber being separated from the absorbent material by a barrier member having at least one opening, and a shutter element movable from a closed position, in which said opening is occluded, to an open position, in which said opening permits fluid flow from the chamber to the absorbent material. It has been found that the use of an absorbent material enables fatty material to be concentrated to the required degree in a passive, single vessel process without damage to the fatty tissue. There are also described methods for the use of the device.Type: GrantFiled: January 6, 2014Date of Patent: January 8, 2019Assignee: Brightwake LimitedInventor: Terence Gourlay
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Patent number: 10086107Abstract: A releasably adhesive laminate (1) comprises a structural layer (2) carrying on at least part of one side thereof a hydrophobic gel (4) and on at least part of the other side thereof a pressure-sensitive adhesive (3). The structural layer (2) is preferably a film of synthetic plastics material, eg polyurethane. The pressure-sensitive adhesive (3) is preferably an acrylic adhesive, and the hydrophobic gel (4) is preferably a silicone gel. The laminate (1) may be used as a skin contact component of a wound dressing or in numerous other applications.Type: GrantFiled: April 3, 2007Date of Patent: October 2, 2018Assignee: Brightwake LimitedInventor: Stephen Cotton
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Patent number: 9486553Abstract: A method of manufacturing a wound dressing or the like comprises the steps of a) providing a layer of substrate material; b) extruding a curable hydrophobic gel precursor composition onto that substrate material via one or more mobile applicators; and c) causing or allowing the hydrophobic gel precursor composition to cure to form a hydrophobic gel. Wound dressings or the like that can be manufactured by such a method comprise a layer of substrate material, the wound facing surface of which carries bands of hydrophobic gel that are intermingled in a lattice-like arrangement.Type: GrantFiled: July 16, 2010Date of Patent: November 8, 2016Assignee: Brightwake LimitedInventor: Stephen Cotton
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Patent number: 9393158Abstract: A non-adherent wound dressing (1) comprises a substrate (2) in the form of a perforated sheet of melt-blown non-woven material. The substrate (2) is impregnated with, and coated on both sides with, a silicone gel (3).Type: GrantFiled: August 24, 2012Date of Patent: July 19, 2016Assignee: Brightwake LimitedInventor: Stephen Cotton
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Publication number: 20160067102Abstract: A wound dressing comprises an absorbent body of foam material with first and second major surfaces. The first major surface is, in use, the wound-facing surface of the absorbent body. A thermochromic indicator is incorporated into, or is in intimate contact with, the second major surface of the absorbent body. The thermochromic indicator is sensitive to a change in temperature of the skin below the dressing and so is indicative of an infection.Type: ApplicationFiled: April 24, 2014Publication date: March 10, 2016Applicant: BRIGHTWAKE LIMITEDInventor: Stephen COTTON
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Patent number: 9254354Abstract: Devices for concentrating fluids that comprise discrete or particulate material dispersed in a liquid medium, such as whole blood, by removal of a proportion of the liquid medium, and a method of producing blood cell concentrates from whole blood using reduced pressure. The devices comprise an outer bag formed of an impermeable material and an inner bag formed of a permeable material, the inner bag containing an absorbent material or being adapted for connection to a source of reduced pressure.Type: GrantFiled: November 17, 2010Date of Patent: February 9, 2016Assignee: Brightwake LimitedInventors: Stephen Cotton, Terence Gourlay
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Patent number: 9132225Abstract: Apparatus and methods for extracorporeal blood filtration involving the connection of a patient's cardiovascular circulation to an extracorporeal circulatory circuit, and filtration devices suitable for use in such apparatus and methods are disclosed. Such filtration devices include a filter medium comprising a layer of non-woven fabric (21) impregnated with porous beads (22) and carrying a porous screen (23) on at least one side. This invention enables the removal or particular molecular species such as pro-inflammatory cytokines from a patient's circulation, and is of particular utility in cardiopulmonary bypass and haemodialysis-like procedures.Type: GrantFiled: January 15, 2010Date of Patent: September 15, 2015Assignee: Brightwake LimitedInventors: Terence Gourlay, Stephen Cotton
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Publication number: 20130053748Abstract: A non-adherent wound dressing (1) comprises a substrate (2) in the form of a perforated sheet of melt-blown non-woven material. The substrate (2) is impregnated with, and coated on both sides with, a silicone gel (3).Type: ApplicationFiled: August 24, 2012Publication date: February 28, 2013Applicant: BRIGHTWAKE LIMITEDInventor: Stephen COTTON
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Publication number: 20120175319Abstract: Devices for concentrating fluids that comprise discrete or particulate material dispersed in a liquid medium, such as whole blood, by removal of a proportion of the liquid medium, and a method of producing blood cell concentrates from whole blood using reduced pressure. The devices comprise an outer bag formed of an impermeable material and an inner bag formed of a permeable material, the inner bag containing an absorbent material or being adapted for connection to a source of reduced pressure.Type: ApplicationFiled: November 17, 2010Publication date: July 12, 2012Applicant: BRIGHTWAKE LIMITEDInventors: Stephen Cotton, Terrence Gourlay
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Publication number: 20120116281Abstract: A method of manufacturing a wound dressing or the like comprises the steps of a) providing a layer of substrate material; b) extruding a curable hydrophobic gel precursor composition onto that substrate material via one or more mobile applicators; and c) causing or allowing the hydrophobic gel precursor composition to cure to form a hydrophobic gel. Wound dressings or the like that can be manufactured by such a method comprise a layer of substrate material, the wound facing surface of which carries bands of hydrophobic gel that are intermingled in a lattice-like arrangement.Type: ApplicationFiled: July 16, 2010Publication date: May 10, 2012Applicant: BRIGHTWAKE LIMITEDInventor: Stephen Cotton
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Publication number: 20120107375Abstract: An antimicrobial material comprises propolis dispersed within a solid carrier. The antimicrobial material is preferably in the form of a film The carrier may be a polymeric material.Type: ApplicationFiled: July 1, 2010Publication date: May 3, 2012Applicant: BRIGHTWAKE LIMITEDInventor: Stephen Cotton
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Publication number: 20120034432Abstract: A composite absorbent material (1) comprising one or more absorbent layers (6) and one or more reinforcing layers (4) bonded together, and method of manufacture. The reinforcing layers (4) maintain the structural integrity of the material following fluid absorption. The composite absorbent material (1) may form the absorbent component of an absorbent wound dressing.Type: ApplicationFiled: March 30, 2010Publication date: February 9, 2012Applicant: BRIGHTWAKE LIMITEDInventor: Stephen Cotton
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Publication number: 20120022479Abstract: A non-adhesive absorbent wound dressing (10) is suitable for application about a jointed limb. The wound dressing (10) has a first portion (20) adapted to conform to and wrap around an upper part of the limb, a second portion (30) adapted to conform to and wrap around a lower part of the limb, and a hinge portion (40) between said first portion (20) and said second portion (30), said hinge portion (40) in use lying adjacent to the joint of the limb. The wound dressing (10) also comprises a porous wound contact sheet (80) and a substantially liquid-impermeable backing sheet (90), the wound contact sheet (80) and the backing sheet (90) being bonded (50) together at their periphery and along lines that define a plurality of pockets (60) in both the first portion (20) and the second portion (30), the pockets (60) containing absorbent material (70).Type: ApplicationFiled: April 8, 2010Publication date: January 26, 2012Applicant: BRIGHTWAKE LIMITEDInventor: Stephen Cotton
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Patent number: D675328Type: GrantFiled: December 22, 2011Date of Patent: January 29, 2013Assignee: Brightwake LimitedInventor: Stephen Cotton
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Patent number: D735346Type: GrantFiled: January 2, 2014Date of Patent: July 28, 2015Assignee: BRIGHTWAKE LIMITEDInventor: Stephen Cotton
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Patent number: D793567Type: GrantFiled: January 8, 2016Date of Patent: August 1, 2017Assignee: Brightwake LimitedInventor: Stephen Cotton