Patents by Inventor Michael Lawrence-Brown

Michael Lawrence-Brown 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: 8361134
    Abstract: A deployment system for introducing stent grafts which have a side arm or into which a side arm can be deployed. For instance the stent graft can be deployed into the thoracic arch of a patient. The deployment system including an introducer (1), an auxiliary catheter (13) disposed within the introducer and an auxiliary guide wire (14) disposed within the auxiliary catheter. The auxiliary guide wire extends to adjacent the proximal end (6) of the introducer an can be extended from the proximal end of the introducer so that it can be snared from a side branch artery (56) to assist with deployment of a side arm (23) of the stent graft into the side artery or for the deployment of a side arm stent graft into the stent graft.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: January 29, 2013
    Assignees: Cook Medical Technologies LLC, William A. Cook Australia Pty. Ltd.
    Inventors: David Ernest Hartley, Michael Lawrence-Brown, Wolf Stelter, Krasnodar Ivancev, Eric L. G. Verhoeven
  • Patent number: 8357190
    Abstract: A laparoscopic vascular conduit arrangement has an elongate graft tube (1, 10) which is placed through a body cavity into a body vessel using a laparoscopic port sheath (70) with a distal valve (73) and a second sheath (80) with distal valve (86, 87). The graft tube (1, 10) extends through the laparoscopic port sheath so that the distal end (108) of the graft tube extends out of its valve and the proximal end of the graft tube extends out of the proximal end of the laparoscopic port sheath. The second sheath (80) is deployed into the distal end (108) of the graft tube (1, 10) such that the first valve (73) seals around the graft tube and the second sheath (84). The proximal end of the graft tube can be deployed into the vessel of the body to allow access into the vessel through the graft tube via the second valve. The conduit can be removed after use or used to provide vascular bypass.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: January 22, 2013
    Assignees: Cook Medical Technologies LLC, William A. Cook Australia Pty. Ltd.
    Inventors: Shirley Jane Fearn, David Ernest Hartley, Michael Lawrence-Brown
  • Patent number: 8262718
    Abstract: A stent graft introducer (1) which includes a handle arrangement which by telescopic movement of a slide or slide portions (104, 106) into a handle portion (100) causes controlled sequential deployment of a stent graft (14). Stops (218, 217, 218, 219) ensure actions are carried out in a selected order. A sheath (116) of the introducer is fixed to a slide portion such that with retraction of the slide portion the sheath is withdrawn from a stent graft retained on the introducer and at a selected position trigger wires retaining the stent graft onto the introducer are also released. Interconnections between the slides and the handle are provided to prevent relative rotation and re-extension after full retraction.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: September 11, 2012
    Assignees: William A. Cook Australia Pty. Ltd., Cook Medical Technologies LLC
    Inventors: Timothy A. Chuter, Michael Lawrence-Brown, David E. Hartley
  • Publication number: 20120197383
    Abstract: A stent graft (1) has at least one fenestration (13) or low profile side arm (34). A guide assembly (17) surrounds the fenestration or low profile side arm. The guide assembly has a continuous wall extending laterally away from the outer surface of the stent graft. The continuous wall is substantially elliptical or circular and extends distally of the fenestration at a distal end of the wall and being coincident with a proximal part (25) of the periphery of the fenestration or low profile side arm at a proximal end of the wall (23). The wall acts to define a guide area to guide a flexible probe extended from a side branch vessel to enter the fenestration or low profile side arm. Where there are two fenestrations or low profile side arms there can be a single continuous wall (50) around both or separate walls for each. The wall may have a peripheral wire reinforcement (19).
    Type: Application
    Filed: October 4, 2010
    Publication date: August 2, 2012
    Inventors: Krasnodar Ivancev, Michael Lawrence-Brown, David Ernest Hartley, Werner Dieter Ducke, Roy K. Greenberg
  • Publication number: 20120185032
    Abstract: A vascular band (1) comprises a biocompatible flexible material (2) and a plurality of radiopaque bars (4) extending transversely across the width of the material and spaced apart along the length of the biocompatible material. The bars provide some rigidity to the flexible material in the width direction thereby preventing buckling of the band in use and the radiopaque nature of the bars enable visualisation of a landing zone for a stent graft during deployment thereof. The bars can be crimped or woven, into the material. The band can be stitched, stapled, or hooked around a vessel.
    Type: Application
    Filed: March 21, 2012
    Publication date: July 19, 2012
    Applicants: Cook Medical Technologies LLC, William A. Cook Australia Pty. Ltd.
    Inventor: Michael Lawrence-Brown
  • Publication number: 20120172968
    Abstract: A stent graft introducer (1) which includes a handle arrangement which by telescopic movement of a slide or slide portions (104, 106) into a handle portion (100) causes controlled sequential deployment of a stent graft (14). Stops (218,217, 218, 219) ensure actions are carried out in a selected order. A sheath (116) of the introducer is fixed to a slide portion such that with retraction of the slide portion the sheath is withdrawn from a stent graft retained on the introducer and at a selected position trigger wires retaining the stent graft onto the introducer are also released. Interconnections between the slides and the handle are provided to prevent relative rotation and re-extension after full retraction.
    Type: Application
    Filed: March 8, 2012
    Publication date: July 5, 2012
    Applicants: William A. Cook Australila Pty. Ltd., Cook Medical Technologies LLC
    Inventors: Timothy A. Chuter, Michael Lawrence-Brown, David E. Hartley
  • Patent number: 8172895
    Abstract: A method of sizing of a stent graft (20) including placement of fenestrations (30, 32) to ensure access to side branch vessels (13, 15) through the fenestrations when the stent graft is introduced into a body vessel and an assembly method for a stent graft including temporary diameter reduction arrangements to enable partial release of a stent graft to assist with positioning of fenestrations with respect to side branch vessels. The method includes spacing the fenestrations to be the same circumferential distance as the side branch vessels irrespective of the diameter of the stent graft.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: May 8, 2012
    Assignees: Cook Medical Technologies LLC, William A. Cook Australia Pty. Ltd.
    Inventors: John Lennon Anderson, David Ernest Hartley, Michael Lawrence-Brown
  • Patent number: 8163005
    Abstract: A vascular band (1) comprises a biocompatible flexible material (2) and a plurality of radiopaque bars (4) extending transversely across the width of the material and spaced apart along the length of the biocompatible material. The bars provide some rigidity to the flexible material in the width direction thereby preventing buckling of the band in use and the radiopaque nature of the bars enable visualization of a landing zone for a stent graft during deployment thereof. The bars can be crimped or woven into the material. The band can be stitched, stapled, or hooked around a vessel.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: April 24, 2012
    Assignees: William A. Cook Australia Pty. Ltd., Cook Medical Technologies LLC
    Inventor: Michael Lawrence-Brown
  • Publication number: 20120010696
    Abstract: A stent graft introducer for intraluminal deployment of a stent graft (26), the introducer comprising a stent graft release mechanism (6) to allow partial release of the stent graft (26) when carried on the introducer, whereby control of the stent graft can be maintained while allowing access into the lumen of the stent graft from at least one end of the stent graft. The partial release can comprise partial release of one end of the stent graft.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 12, 2012
    Applicants: Cook Medical Technologies LLC, William A. Cook Australia Pty. Ltd, The Cleveland Clinic Foundation
    Inventors: Roy K. Greenberg, David Ernest Hartley, Michael Lawrence-Brown
  • Publication number: 20110306914
    Abstract: An endoscopic or laparoscopic conduit delivery device (1) comprises first and second separately manipulable introducers (3, 5) with a laparoscopic conduit (80) having first and second ends (83, 84) and an intermediate portion being mounted onto the introducers in a substantially U shape. The first end and a first portion of the laparoscopic conduit is retained onto the first introducer and the second end and a second portion of the laparoscopic conduit is retained on the second introducer and the intermediate portion extends between the first and second introducers. A main sheath (42) is over the first and second introducers. The endoscopic or laparoscopic conduit delivery device is introduced to a body cavity through an endoscopic or laparoscopic port (50).
    Type: Application
    Filed: August 15, 2011
    Publication date: December 15, 2011
    Applicants: Cook Medical Technologies LLC, William A. Cook Australia
    Inventors: David Ernest Hartley, Michael Lawrence-Brown, Shirley Jansen
  • Patent number: 8043354
    Abstract: A stent graft introducer for intraluminal deployment of a stent graft (26), the introducer comprising a stent graft release mechanism (6) to allow partial release of the stent graft (26) when carried on the introducer, whereby control of the stent graft can be maintained while allowing access into the lumen of the stent graft from at least one end of the stent graft. The partial release can comprise partial release of one end of the stent graft.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: October 25, 2011
    Assignees: William A. Cook Australia Pty. Ltd., The Cleveland Clinic Foundation, Cook Medical Technologies LLC
    Inventors: Roy K. Greenberg, David Ernest Hartley, Michael Lawrence-Brown
  • Publication number: 20110257731
    Abstract: A stent graft (2) for placement in the thoracic arch of a patient has a first tubular body portion (6) with a first lumen therein for placement in the ascending aorta of a patient and a second tubular body portion (8) to extend along the thoracic arch and down the descending aorta. The second tubular body portion is of a lesser diameter than the first tubular body portion. There is a step portion (10) between the first body portion and the second body portion. The step portion is joined to and continuous with the first portion and the second portion. A first side of each of the first body portion, the step portion and the second body portion are substantially aligned so that there is a step (18) defined on a second side opposite to the first side of the body portion. There is an aperture (30) in the step portion and an internal tube (32) extending from the aperture towards the first body portion.
    Type: Application
    Filed: August 25, 2009
    Publication date: October 20, 2011
    Inventors: David E Hartley, Roy K. Greenberg, Krasnodar Ivancev, Michael Lawrence-Brown
  • Patent number: 8034093
    Abstract: An endoscopic or laparoscopic conduit delivery device (1) includes first and second separately manipulable introducers (3, 5) with a laparoscopic conduit (80) having first and second ends (83, 84) and an intermediate portion being mounted onto the introducers in a substantially U shape. The first end and a first portion of the laparoscopic conduit is retained onto the first introducer and the second end and a second portion of the laparoscopic conduit is retained on the second introducer and the intermediate portion extends between the first and second introducers. A main sheath (42) is over the first and second introducers. The endoscopic or laparoscopic conduit delivery device is introduced to a body cavity through an endoscopic or laparoscopic port (50).
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: October 11, 2011
    Assignees: William A. Cook Australia Pty. Ltd., Cook Medical Technologies LLC
    Inventors: David Ernest Hartley, Michael Lawrence-Brown, Shirley Jansen
  • Patent number: 7892275
    Abstract: A stent graft introducer has a nose cone dilator (8) and a distally opening capsule (18) on the nose cone dilator, a balloon guide (2, 30) extending into the capsule and affixed therein. Upon completion of deployment of a stent graft, a balloon catheter (96) including an inflatable balloon (98) thereon can be advanced over the balloon guide at least partially into the nose cone whereby the balloon can be inflated therein to provide a smooth transition from the nose cone to a delivery sheath (10) for retraction of the nose cone dilator through the deployed stent graft. The balloon guide can be a separate wire (30).
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: February 22, 2011
    Assignees: William A. Cook Australia Pty. Ltd., William Cook Europe ApS, Cook Incorporated
    Inventors: David Ernest Hartley, Krasnodar Ivancev, Michael Lawrence-Brown
  • Patent number: 7867270
    Abstract: A multi-port stent graft delivery device (2) has an annular access lumen (26) between a delivery catheter (24) and a main sheath (6), at least one indwelling access sheath (28, 30) within the access lumen, and an indwelling guide wire (36, 38) within the or each access sheath and a stent graft (16) retained in the delivery device. Upon deployment of the stent graft into the vasculature of a patient the indwelling guide wire can be used to facilitate stabilization of the access sheath during cathertization of a side branch and deployment of a side arm covered or uncovered stent therein through the advanced access sheath. A manifold associated (4) with a handle provides a plurality of access ports (41, 43). A docking balloon may also be used.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: January 11, 2011
    Assignees: William A. Cook Australia Pty. Ltd., Cook Incorporated, William Cook Europe ApS
    Inventors: David Ernest Hartley, Krasnodar Ivancev, Michael Lawrence-Brown
  • Publication number: 20090254170
    Abstract: A deployment system for introducing stent grafts which have a side arm or into which a side arm can be deployed. For instance the stent graft can be deployed into the thoracic arch of a patient. The deployment system including an introducer (1), an auxiliary catheter (13) disposed within the introducer and an auxiliary guide wire (14) disposed within the auxiliary catheter. The auxiliary guide wire extends to adjacent the proximal end (6) of the introducer an can be extended from the proximal end of the introducer so that it can be snared from a side branch artery (56) to assist with deployment of a side arm (23) of the stent graft into the side artery or for the deployment of a side arm stent graft into the stent graft.
    Type: Application
    Filed: May 22, 2009
    Publication date: October 8, 2009
    Applicants: William A. Cook Australia Pty. Ltd., William Cook Europe ApS, Cook Incorporated
    Inventors: David Ernest Hartley, Michael Lawrence-Brown, Wolf Stelter, Krasnodar Ivancev, Eric L.G. Verhoeven
  • Patent number: 7537606
    Abstract: A deployment system for introducing stent grafts which have a side arm or into which a side arm can be deployed. For instance the stent graft can be deployed into the thoracic arch of a patient. The deployment system including an introducer (1), an auxiliary catheter (13) disposed within the introducer and an auxiliary guide wire (14) disposed within the auxiliary catheter. The auxiliary guide wire extends to adjacent the proximal end (6) of the introducer and can be extended from the proximal end of the introducer so that it can be snared from a side branch artery (56) to assist with deployment of a side arm (23) of the stent graft into the side artery or for the deployment of a side arm stent graft into the stent graft.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: May 26, 2009
    Assignees: Cook Incorporated, William A. Cook Australia Pty. Ltd., William Cook Europe ApS
    Inventors: David Ernest Hartley, Michael Lawrence-Brown, Wolf Stelter, Krasnodar Ivancev, Eric L. G. Verhoeven
  • Publication number: 20080312732
    Abstract: A stent graft (1) including a tubular wall (3) with at least one fenestration (40) including a peripheral (37) reinforcement around at least part of the fenestration. There can also be a tubular extension (15). The side arm includes a stent (19) and a cover (17) and extends from and is in fluid communication with the fenestration and the stent graft. The stent may be a self expanding stent. The ring and/or tubular extension provides better support and sealing for an extension arm. The fenestration (40) can be circular or if towards the ends of the stent graft may be in the form of a U-shape (50) with an open end.
    Type: Application
    Filed: August 13, 2008
    Publication date: December 18, 2008
    Applicants: Cook Incorporated, William A. Cook Australia Pty. Ltd.
    Inventors: David Ernest Hartley, John Lennon Anderson, Michael Lawrence-Brown
  • Patent number: 7435253
    Abstract: An introducer (1) adapted for the introduction of a self-expanding endovascular prosthesis (20) in a lumen of a patient. The introducer has attachment devices (10,30) to hold each end of the prosthesis so that each can be moved independently. An end ovascular prosthesis (20) is also claimed with stents at the proximal and distal ends being within the graft. The remainder of the stents are positioned on the outside of the graft body.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: October 14, 2008
    Assignee: William A. Cook Australia Pty Ltd
    Inventors: David Hartley, Michael Lawrence-Brown
  • Publication number: 20080221659
    Abstract: An endoscopic or laparoscopic conduit delivery device (1) comprises first and second separately manipulable introducers (3, 5) with a laparoscopic conduit (80) having first and second ends (83, 84) and an intermediate portion being mounted onto the introducers in a substantially U shape. The first end and a first portion of the laparoscopic conduit is retained onto the first introducer and the second end and a second portion of the laparoscopic conduit is retained on the second introducer and the intermediate portion extends between the first and second introducers. A main sheath (42) is over the first and second introducers. The endoscopic or laparoscopic conduit delivery device is introduced to a body cavity through an endoscopic or laparoscopic port (50).
    Type: Application
    Filed: January 30, 2008
    Publication date: September 11, 2008
    Applicants: William A. Cook Australia Pty. Ltd., Cook Incorporated
    Inventors: David Ernest Hartley, Michael Lawrence-Brown, Shirley Jansen