Patents Assigned to Tayside Flow Technologies Limited
  • Blood-flow tubing
    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
  • Insert for a conduit
    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
  • Method for introducing an internal helical formation into a flexible tubular material
    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
  • Blood-flow tubing
    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
  • Insert for a conduit
    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
  • Internal formation for a conduit
    Publication number: 20070106373
    Abstract: An internal formation (3) for a conduit (1). The formation (3) has a longitudinally extending member adapted to extend along an inside surface of at least a portion of the length of the conduit (1). The longitudinally extending member has an asymmetric profile in a direction transverse of the longitudinal axis of the member.
    Type: Application
    Filed: May 24, 2004
    Publication date: May 10, 2007
    Applicant: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Robert Gordon Hood, Peter Stonebridge, John Bruce Dick
  • Helical formation for a conduit
    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
  • Fluid flow in tubing
    Patent number: 7114524
    Abstract: There is disclosed a method for configuring or reconfiguring branches in tubing in which the axes of at least two components of the branched structure are arranged askew.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: October 3, 2006
    Assignee: Tayside Flow Technologies Limited
    Inventors: Graeme J. Houston, Peter A. Stonebridge, John B. C. Dick
  • Valve
    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
  • Helical formation for a conduit
    Publication number: 20060124187
    Abstract: A helical formation for a conduit (1). The helical formation includes an elongate member (4) defining at least a portion of a helix, the elongate member (4) comprising an inwardly extending portion (6, 7). The inwardly extending portion (6, 7) extends along the length of the elongate member (4) and extends inwardly from the internal side walls of the conduit (1) for a distance equal to between 10% and 80% of the distance (r) from the longitudinal axis (3) of the conduit (1) to an internal side wall (2).
    Type: Application
    Filed: November 13, 2003
    Publication date: June 15, 2006
    Applicant: Tayside Flow Technologies Limited
    Inventors: John Houston, Robert Hood, Peter Stonebridge
  • Method of determining the helix angle of a helical formation for a conduit
    Publication number: 20060047334
    Abstract: A Method of Determining the Helix Angle of a Helical Formation for a Conduit. A method of determing the helix angle of a helical formation (4) within a conduit (1). The method includes specifying the internal dimensions of the conduit (1) and an intended fluid mass flow through the conduit (1). The helix angle is determined from the pressure drop and the turbulent kinetic energy for a conduit (1) having the specified internal dimensions and intended fluid mass flow.
    Type: Application
    Filed: December 13, 2002
    Publication date: March 2, 2006
    Applicant: Tayside Flow Technologies Limited
    Inventors: John Houston, Robert Hood, Peter Stonebridge, Allan Thomson
  • Flow means
    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
  • Vascular tubing
    Patent number: D522654
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: June 6, 2006
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, Robert Gordon Hood
  • Vascular tube
    Patent number: D524442
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: July 4, 2006
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, Robert Gordon Hood
  • Vascular tubing
    Patent number: D526718
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: August 15, 2006
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, Robert Gordon Hood
  • Vascular tubing
    Patent number: D527104
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: August 22, 2006
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, Robert Gordon Hood
  • Vascular tube
    Patent number: D567946
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: April 29, 2008
    Assignee: Tayside Flow Technologies Limited
    Inventors: John Graeme Houston, Peter Arno Stonebridge, Robert Gordon Hood