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).
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Patent number: 10188532Abstract: 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: GrantFiled: July 20, 2016Date of Patent: January 29, 2019Assignee: Vascular Flow Technologies LimitedInventors: John Graeme Houston, John Bruce Cameron Dick, Peter Stonebridge
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Patent number: 9737421Abstract: 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: GrantFiled: January 6, 2012Date of Patent: August 22, 2017Assignee: Vascular Flow Technologies LimitedInventors: John Graeme Houston, John Bruce Cameron Dick, Peter Stonebridge
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Publication number: 20160346101Abstract: 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: ApplicationFiled: July 20, 2016Publication date: December 1, 2016Applicant: TAYSIDE UNIVERSITY HOSPITALS NHS TRUSTInventors: John Graeme HOUSTON, John Bruce Cameron DICK, Peter STONEBRIDGE
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Publication number: 20150265393Abstract: 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: ApplicationFiled: May 27, 2015Publication date: September 24, 2015Inventors: Peter Arno Stonebridge, John Bruce Cameron Dick, John Graeme Houston, Robert Gordon Hood
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Patent number: 9067026Abstract: 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: GrantFiled: May 19, 2010Date of Patent: June 30, 2015Assignee: Vascular Flow Technologies LimitedInventors: Peter Arno Stonebridge, John Bruce Cameron Dick, John Graeme Houston, Robert Gordon Hood
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Patent number: 8454675Abstract: 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: GrantFiled: May 24, 2004Date of Patent: June 4, 2013Assignee: Tayside Flow Technologies Ltd.Inventors: John Graeme Houston, Robert Gordon Hood, Peter Arno Stonebridge, John Bruce Cameron Dick
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Publication number: 20120130314Abstract: 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: ApplicationFiled: May 19, 2010Publication date: May 24, 2012Applicant: TAYSIDE FLOW TECHNOLOGIES LTD.Inventors: Peter Arno Stonebridge, John Bruce Cameron Dick, John Graeme Houston, Robert Gordon Hood
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Publication number: 20120123520Abstract: 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: ApplicationFiled: January 6, 2012Publication date: May 17, 2012Applicant: Tayside University Hospitals NHS TrustInventors: John Graeme Houston, John Bruce Cameron Dick, Peter Stonebridge
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Patent number: 8110267Abstract: 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: GrantFiled: April 3, 2007Date of Patent: February 7, 2012Assignee: Tayside Flow Technologies LimitedInventors: John Graeme Houston, John Bruce Cameron Dick, Peter Stonebridge
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Patent number: 8021415Abstract: 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: GrantFiled: January 17, 2008Date of Patent: September 20, 2011Assignee: Tayside Flow Technologies LimitedInventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
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Patent number: 7968036Abstract: 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: GrantFiled: April 10, 2008Date of Patent: June 28, 2011Assignee: Tayside Flow Technologies LimitedInventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
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Publication number: 20100298924Abstract: 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: ApplicationFiled: May 19, 2009Publication date: November 25, 2010Applicant: TAYSIDE FLOW TECHNOLOGIES LTD.Inventors: John Graeme Houston, John Bruce Cameron Dick, Robert Gordon Hood, Peter Arno Stonebridge
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Patent number: 7682673Abstract: 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: GrantFiled: August 19, 2003Date of Patent: March 23, 2010Assignee: Tayside Flow Technologies LimitedInventors: John Graeme Houston, John Bruce Cameron Dick, Peter Stonebridge
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Patent number: 7503226Abstract: 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: GrantFiled: September 18, 2002Date of Patent: March 17, 2009Assignee: Tayside Flow Technologies LtdInventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
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Publication number: 20080319536Abstract: 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: ApplicationFiled: April 10, 2008Publication date: December 25, 2008Inventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
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Patent number: 7331989Abstract: 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: GrantFiled: November 21, 2002Date of Patent: February 19, 2008Assignee: Tayside Flow Technologies LimitedInventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff
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Patent number: 7185677Abstract: 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: GrantFiled: November 21, 2002Date of Patent: March 6, 2007Assignee: Tayside Flow Technologies LimitedInventors: John Graeme Houston, Robert Gordon Hood, John Bruce Cameron Dick, Craig McLeod Duff, Allana Johnstone, Christophe Emmanuel Sarran, Peter Arno Stonebridge
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Patent number: 7112220Abstract: 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: GrantFiled: February 7, 2002Date of Patent: September 26, 2006Assignee: Tayside Flow Technologies LimitedInventors: Graeme J Houston, Peter A Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood
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Publication number: 20050165289Abstract: 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: ApplicationFiled: September 18, 2002Publication date: July 28, 2005Applicant: Tayside Flow TechnologiesInventors: John Houston, Peter Stonebridge, John, Bruce Cameron Dick, Robert Hood, Allana Johnstone, Christophem Emmanuel Sarran, Craig McLeod Duff
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Patent number: 6776194Abstract: 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: GrantFiled: June 5, 2002Date of Patent: August 17, 2004Assignee: Tayside Flow Technologies LimitedInventors: John Graeme Houston, Peter Arno Stonebridge, John Bruce Cameron Dick, Robert Gordon Hood, Allana Johnstone, Christophe Emmanuel Sarran, Craig McLeod Duff, Allan Thomson