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).
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Patent number: 8361134Abstract: 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: GrantFiled: May 22, 2009Date of Patent: January 29, 2013Assignees: 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
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Patent number: 8357190Abstract: 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: GrantFiled: May 8, 2006Date of Patent: January 22, 2013Assignees: Cook Medical Technologies LLC, William A. Cook Australia Pty. Ltd.Inventors: Shirley Jane Fearn, David Ernest Hartley, Michael Lawrence-Brown
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Patent number: 8262718Abstract: 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: GrantFiled: April 26, 2007Date of Patent: September 11, 2012Assignees: William A. Cook Australia Pty. Ltd., Cook Medical Technologies LLCInventors: Timothy A. Chuter, Michael Lawrence-Brown, David E. Hartley
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Publication number: 20120197383Abstract: 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: ApplicationFiled: October 4, 2010Publication date: August 2, 2012Inventors: Krasnodar Ivancev, Michael Lawrence-Brown, David Ernest Hartley, Werner Dieter Ducke, Roy K. Greenberg
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Publication number: 20120185032Abstract: 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: ApplicationFiled: March 21, 2012Publication date: July 19, 2012Applicants: Cook Medical Technologies LLC, William A. Cook Australia Pty. Ltd.Inventor: Michael Lawrence-Brown
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Publication number: 20120172968Abstract: 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: ApplicationFiled: March 8, 2012Publication date: July 5, 2012Applicants: William A. Cook Australila Pty. Ltd., Cook Medical Technologies LLCInventors: Timothy A. Chuter, Michael Lawrence-Brown, David E. Hartley
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Patent number: 8172895Abstract: 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: GrantFiled: August 18, 2006Date of Patent: May 8, 2012Assignees: Cook Medical Technologies LLC, William A. Cook Australia Pty. Ltd.Inventors: John Lennon Anderson, David Ernest Hartley, Michael Lawrence-Brown
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Patent number: 8163005Abstract: 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: GrantFiled: March 3, 2008Date of Patent: April 24, 2012Assignees: William A. Cook Australia Pty. Ltd., Cook Medical Technologies LLCInventor: Michael Lawrence-Brown
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Publication number: 20120010696Abstract: 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: ApplicationFiled: September 22, 2011Publication date: January 12, 2012Applicants: Cook Medical Technologies LLC, William A. Cook Australia Pty. Ltd, The Cleveland Clinic FoundationInventors: Roy K. Greenberg, David Ernest Hartley, Michael Lawrence-Brown
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Publication number: 20110306914Abstract: 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: ApplicationFiled: August 15, 2011Publication date: December 15, 2011Applicants: Cook Medical Technologies LLC, William A. Cook AustraliaInventors: David Ernest Hartley, Michael Lawrence-Brown, Shirley Jansen
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Patent number: 8043354Abstract: 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: GrantFiled: June 15, 2005Date of Patent: October 25, 2011Assignees: William A. Cook Australia Pty. Ltd., The Cleveland Clinic Foundation, Cook Medical Technologies LLCInventors: Roy K. Greenberg, David Ernest Hartley, Michael Lawrence-Brown
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Publication number: 20110257731Abstract: 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: ApplicationFiled: August 25, 2009Publication date: October 20, 2011Inventors: David E Hartley, Roy K. Greenberg, Krasnodar Ivancev, Michael Lawrence-Brown
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Patent number: 8034093Abstract: 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: GrantFiled: January 30, 2008Date of Patent: October 11, 2011Assignees: William A. Cook Australia Pty. Ltd., Cook Medical Technologies LLCInventors: David Ernest Hartley, Michael Lawrence-Brown, Shirley Jansen
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Patent number: 7892275Abstract: 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: GrantFiled: July 24, 2007Date of Patent: February 22, 2011Assignees: William A. Cook Australia Pty. Ltd., William Cook Europe ApS, Cook IncorporatedInventors: David Ernest Hartley, Krasnodar Ivancev, Michael Lawrence-Brown
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Patent number: 7867270Abstract: 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: GrantFiled: May 30, 2007Date of Patent: January 11, 2011Assignees: William A. Cook Australia Pty. Ltd., Cook Incorporated, William Cook Europe ApSInventors: David Ernest Hartley, Krasnodar Ivancev, Michael Lawrence-Brown
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Publication number: 20090254170Abstract: 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: ApplicationFiled: May 22, 2009Publication date: October 8, 2009Applicants: William A. Cook Australia Pty. Ltd., William Cook Europe ApS, Cook IncorporatedInventors: David Ernest Hartley, Michael Lawrence-Brown, Wolf Stelter, Krasnodar Ivancev, Eric L.G. Verhoeven
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Patent number: 7537606Abstract: 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: GrantFiled: April 5, 2004Date of Patent: May 26, 2009Assignees: Cook Incorporated, William A. Cook Australia Pty. Ltd., William Cook Europe ApSInventors: David Ernest Hartley, Michael Lawrence-Brown, Wolf Stelter, Krasnodar Ivancev, Eric L. G. Verhoeven
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Publication number: 20080312732Abstract: 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: ApplicationFiled: August 13, 2008Publication date: December 18, 2008Applicants: Cook Incorporated, William A. Cook Australia Pty. Ltd.Inventors: David Ernest Hartley, John Lennon Anderson, Michael Lawrence-Brown
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Patent number: 7435253Abstract: 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: GrantFiled: November 24, 1999Date of Patent: October 14, 2008Assignee: William A. Cook Australia Pty LtdInventors: David Hartley, Michael Lawrence-Brown
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Publication number: 20080221659Abstract: 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: ApplicationFiled: January 30, 2008Publication date: September 11, 2008Applicants: William A. Cook Australia Pty. Ltd., Cook IncorporatedInventors: David Ernest Hartley, Michael Lawrence-Brown, Shirley Jansen