Patents by Inventor John Bruce Cameron Dick

John Bruce Cameron Dick has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10188532
    Abstract: An artificial or modified natural blood flow tubing has a helical-flow inducer to induce helical flow in such a fashion as to eliminate or reduce turbulence. One inducer is a tubular stent of expansible mesh having a helical vane.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: January 29, 2019
    Assignee: Vascular Flow Technologies Limited
    Inventors: John Graeme Houston, John Bruce Cameron Dick, Peter Stonebridge
  • Patent number: 9737421
    Abstract: An artificial or modified natural blood flow tubing has a helical-flow inducer to induce helical flow in such a fashion as to eliminate or reduce turbulence. One inducer is a tubular stent of expansible mesh having a helical vane.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: August 22, 2017
    Assignee: Vascular Flow Technologies Limited
    Inventors: John Graeme Houston, John Bruce Cameron Dick, Peter Stonebridge
  • Publication number: 20160346101
    Abstract: An artificial or modified natural blood flow tubing has a helical-flow inducer to induce helical flow in such a fashion as to eliminate or reduce turbulence. One inducer is a tubular stent of expansible mesh having a helical vane.
    Type: Application
    Filed: July 20, 2016
    Publication date: December 1, 2016
    Applicant: TAYSIDE UNIVERSITY HOSPITALS NHS TRUST
    Inventors: John Graeme HOUSTON, John Bruce Cameron DICK, Peter STONEBRIDGE
  • Publication number: 20150265393
    Abstract: A vascular access graft comprises an elongate conduit having proximal and distal ends. At least a portion of the elongate conduit has a self-sealing property such that the portion remains impermeable after puncturing by a dialysis needle. The vascular access graft also comprises a helical fin projecting inwardly from the inner surface of the elongate conduit and extending parallel to the axis of the elongate conduit.
    Type: Application
    Filed: May 27, 2015
    Publication date: September 24, 2015
    Inventors: Peter Arno Stonebridge, John Bruce Cameron Dick, John Graeme Houston, Robert Gordon Hood
  • Patent number: 9067026
    Abstract: A vascular access graft (1) comprises an elongate conduit (2) having proximal and distal ends (3, 4). At least a portion of the elongate conduit (2) has a self-sealing property such that the portion remains impermeable after puncturing by a dialysis needle. The vascular access graft (1) also comprises a helical fin (6) projecting inwardly from the inner surface (5) of the elongate conduit (2) and extending parallel to the axis of the elongate conduit (2).
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: June 30, 2015
    Assignee: Vascular Flow Technologies Limited
    Inventors: Peter Arno Stonebridge, John Bruce Cameron Dick, John Graeme Houston, Robert Gordon Hood
  • Patent number: 8454675
    Abstract: An internal formation for a conduit. The formation has a longitudinally extending member adapted to extend along an inside surface of at least a portion of the length of the conduit. The longitudinally extending member has an asymmetric profile in a direction transverse of the longitudinal axis of the member.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: June 4, 2013
    Assignee: Tayside Flow Technologies Ltd.
    Inventors: John Graeme Houston, Robert Gordon Hood, Peter Arno Stonebridge, John Bruce Cameron Dick
  • Publication number: 20120130314
    Abstract: A vascular access graft (1) comprises an elongate conduit (2) having proximal and distal ends (3, 4). At least a portion of the elongate conduit (2) has a self-sealing property such that the portion remains impermeable after puncturing by a dialysis needle. The vascular access graft (1) also comprises a helical fin (6) projecting inwardly from the inner surface (5) of the elongate conduit (2) and extending parallel to the axis of the elongate conduit (2).
    Type: Application
    Filed: May 19, 2010
    Publication date: May 24, 2012
    Applicant: TAYSIDE FLOW TECHNOLOGIES LTD.
    Inventors: Peter Arno Stonebridge, John Bruce Cameron Dick, John Graeme Houston, Robert Gordon Hood
  • Publication number: 20120123520
    Abstract: An artificial or modified natural blood flow tubing has a helical-flow inducer to induce helical flow in such a fashion as to eliminate or reduce turbulence. One inducer is a tubular stent of expansible mesh having a helical vane.
    Type: Application
    Filed: January 6, 2012
    Publication date: May 17, 2012
    Applicant: Tayside University Hospitals NHS Trust
    Inventors: John Graeme Houston, John Bruce Cameron Dick, Peter Stonebridge
  • Patent number: 8110267
    Abstract: An artificial or modified natural blood flow tubing has a helical-flow inducer to induce helical flow in such a fashion as to eliminate or reduce turbulence. One inducer is a tubular stent of expansible mesh having a helical vane.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: February 7, 2012
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, John Bruce Cameron Dick, Peter Stonebridge
  • Patent number: 8021415
    Abstract: There is disclosed an insert (2) for a conduit (4) adapted to effect helical flow in the conduit (4) comprising a longitudinally extending member having a helical formation.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: September 20, 2011
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
  • Patent number: 7968036
    Abstract: There is disclosed a method for introducing a helical formation (11) into a flexible tubular material (12). The material (12) is supported together with a surrounding helical former (13) so as to deform the material (12) to have a helical indentation (11) corresponding to the shape of the former (13). The material (12) is then set in that configuration and the former (13) is removed.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: June 28, 2011
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
  • Publication number: 20100298924
    Abstract: A tubular graft (1) comprises an elongate conduit (2) having distal and proximal ends (3, 4). The tubular graft (1) also comprises a helical fin (10) projecting inwardly from the inner surface of the elongate conduit (2) and extending parallel to the axis of the elongate conduit (2). The helical fin (10) extends from the distal end (3) of the elongate conduit (2) to a point (11) short of the proximal end (4) of the elongate conduit (2).
    Type: Application
    Filed: May 19, 2009
    Publication date: November 25, 2010
    Applicant: TAYSIDE FLOW TECHNOLOGIES LTD.
    Inventors: John Graeme Houston, John Bruce Cameron Dick, Robert Gordon Hood, Peter Arno Stonebridge
  • Patent number: 7682673
    Abstract: An artificial or modified natural blood flow tubing has a helical-flow inducer to induce helical flow in such fashion as to eliminate or reduce turbulence. One inducer is a tubular stent of expansible mesh having a helical vane.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: March 23, 2010
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, John Bruce Cameron Dick, Peter Stonebridge
  • Patent number: 7503226
    Abstract: A method of assessing the effect of a conduit section (11) on flow characteristics of a first fluid in a first conduit system (1). A first fluid is caused to flow through the first conduit system (1). A transverse flow parameter of the first fluid in the first conduit system (1) downstream of the conduit section (11) is detected. At least one transverse flow characteristic of the first fluid is determined from the detected transverse flow parameter. The effect of the conduit section (11) is then assessed from the determined flow characteristics.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: March 17, 2009
    Assignee: Tayside Flow Technologies Ltd
    Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
  • Publication number: 20080319536
    Abstract: There is disclosed a method for introducing a helical formation (11) into a flexible tubular material (12). The material (12) is supported together with a surrounding helical former (13) so as to deform the material (12) to have a helical indentation (11) corresponding to the shape of the former (13). The material (12) is then set in that configuration and the former (13) is removed.
    Type: Application
    Filed: April 10, 2008
    Publication date: December 25, 2008
    Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
  • Patent number: 7331989
    Abstract: There is disclosed an insert (2) for a conduit (4) adapted to effect helical flow in the conduit (4) comprising a longitudinally extending member having a helical formation.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: February 19, 2008
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
  • Patent number: 7185677
    Abstract: A helical formation (2) for a conduit (1). The helical formation (2) comprises an elongate member defining at least a portion of a helix, the elongate member comprising two inwardly extending portions (6, 7). The inwardly extending portions (6, 7) are spaced from each other and extend along the length of the elongate member in side-by-side relationship.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: March 6, 2007
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Robert Gordon Hood, John Bruce Cameron Dick, Craig McLeod Duff, Allana Johnstone, Christophe Emmanuel Sarran, Peter Arno Stonebridge
  • Patent number: 7112220
    Abstract: There is disclosed a heart valve prosthesis having a configuration such that blood flow through it has a helical flow pattern such as to substantially reduce or eliminate turbulence and dead flow regions in the blood flow.
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: September 26, 2006
    Assignee: Tayside Flow Technologies Limited
    Inventors: Graeme J Houston, Peter A Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood
  • Publication number: 20050165289
    Abstract: A method of assessing the effect of a conduit section (11) on flow characteristics of a first fluid in a first conduit system (1). A first fluid is caused to flow through the first conduit system (1). A transverse flow parameter of the first fluid in the first conduit system (1) downstream of the conduit section (11) is detected. At least one transverse flow characteristic of the first fluid is determined from the detected transverse flow parameter. The effect of the conduit section (11) is then assessed from the determined flow characteristics.
    Type: Application
    Filed: September 18, 2002
    Publication date: July 28, 2005
    Applicant: Tayside Flow Technologies
    Inventors: John Houston, Peter Stonebridge, John, Bruce Cameron Dick, Robert Hood, Allana Johnstone, Christophem Emmanuel Sarran, Craig McLeod Duff
  • Patent number: 6776194
    Abstract: There is a disclosed a conduit supporting structure that imposes, maintains and/or reinforces a flow guiding formation of a conduit, whereby to effect a desired flow configuration in the conduit.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: August 17, 2004
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff, Allan Thomson