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: 9707113
    Abstract: A stent graft has a tubular body with a first bifurcation with first and second legs extending from the bifurcation. One of the legs has a further bifurcation to define a side arm. The stent graft can be deployed into the vasculature of a patient with the tubular body being in an aorta of the patient, a first leg extending down an iliac artery, a second leg being directed towards a contralateral iliac artery and the side arm directed to an internal artery of one of the iliac arteries. One of the legs can include a valved aperture to enable the placement of an indwelling catheter therethrough.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: July 18, 2017
    Assignees: Cook Medical Technologies LLC, The Cleveland Clinic Foundation
    Inventors: Roy K. Greenberg, David Ernest Hartley, Michael Lawrence-Brown
  • Patent number: 9655711
    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: Grant
    Filed: July 7, 2015
    Date of Patent: May 23, 2017
    Assignees: COOK MEDICAL TECHNOLOGIES LLC, THE CLEVELAND CLINIC FOUNDATION
    Inventors: David E Hartley, Roy K Greenberg, Krasnodar Ivancev, Michael Lawrence-Brown
  • Publication number: 20170112642
    Abstract: A stent graft including a tubular wall with at least one fenestration including a peripheral reinforcement around at least part of the fenestration. There can also be a tubular extension. The side arm includes a stent and a cover 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 can be circular or if towards the ends of the stent graft may be in the form of a U-shape with an open end.
    Type: Application
    Filed: January 9, 2017
    Publication date: April 27, 2017
    Applicant: Cook Medical Technologies LLC
    Inventors: David Ernest Hartley, John Lennon Anderson, Michael Lawrence-Brown
  • Patent number: 9539123
    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: Grant
    Filed: December 30, 2014
    Date of Patent: January 10, 2017
    Assignee: Cook Medical Technologies LLC
    Inventors: David Ernest Hartley, John Lennon Anderson, Michael Lawrence-Brown
  • Patent number: 9504555
    Abstract: A method of assembling of a stent graft (20) including temporarily diameter reduction arrangements to enable partial release of a stent graft to assist with positioning before complete release. The diameter reduction arrangement includes a release wire (72) and flexible threads (74, 80) extending to struts (76) of a self expanding stent (70) either side of the release wire and being pulled tight. Removal of the release wire enables full expansion of the self expanding stent.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: November 29, 2016
    Assignee: Cook Medical Technologies LLC
    Inventors: David E. Hartley, Michael Lawrence-Brown
  • Patent number: 9211183
    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: Grant
    Filed: October 4, 2010
    Date of Patent: December 15, 2015
    Assignees: COOK MEDICAL TECHNOLOGIES LLC, THE CLEVELAND CLINIC FOUNDATION
    Inventors: Krasnodar Ivancev, Michael Lawrence-Brown, David Ernest Hartley, Werner Dieter Ducke, Roy K. Greenberg
  • Publication number: 20150305852
    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: July 7, 2015
    Publication date: October 29, 2015
    Applicants: THE CLEVELAND CLINIC FOUNDATION, COOK MEDICAL TECHNOLOGIES LLC
    Inventors: David E. Hartley, Roy K. Greenberg, Krasnodar Ivancev, Michael Lawrence-Brown
  • Patent number: 9101456
    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: Grant
    Filed: August 25, 2009
    Date of Patent: August 11, 2015
    Assignees: COOK MEDICAL TECHNOLOGIES LLC, THE CLEVELAND CLINIC FOUNDATION
    Inventors: David E Hartley, Roy K. Greenberg, Krasnodar Ivancev, Michael Lawrence-Brown
  • Patent number: 9095458
    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: Grant
    Filed: July 25, 2013
    Date of Patent: August 4, 2015
    Assignee: Cook Medical Technologies LLC
    Inventors: David Ernest Hartley, John Lennon Anderson, Michael Lawrence-Brown
  • Patent number: 9072621
    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: Grant
    Filed: February 5, 2013
    Date of Patent: July 7, 2015
    Assignee: Cook Medical Technologies LLC
    Inventors: David Ernest Hartley, John Lennon Anderson, Michael Lawrence-Brown
  • Patent number: 9060887
    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: Grant
    Filed: August 13, 2008
    Date of Patent: June 23, 2015
    Assignee: Cook Medical Technologies LLC
    Inventors: David Ernest Hartley, John Lennon Anderson, Michael Lawrence-Brown
  • Publication number: 20150112420
    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: December 30, 2014
    Publication date: April 23, 2015
    Applicant: COOK MEDICAL TECHNOLOGIES LLC
    Inventors: David Ernest Hartley, John Lennon Anderson, Michael Lawrence-Brown
  • Patent number: 8945204
    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: Grant
    Filed: February 5, 2013
    Date of Patent: February 3, 2015
    Assignee: Cook Medical Technologies LLC
    Inventors: David Ernest Hartley, John Lennon Anderson, Michael Lawrence-Brown
  • Patent number: 8808349
    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: March 8, 2012
    Date of Patent: August 19, 2014
    Assignee: Cook Medical Technologies LLC
    Inventors: Timothy A. Chuter, Michael Lawrence-Brown, David E. Hartley
  • Patent number: 8758425
    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: September 22, 2011
    Date of Patent: June 24, 2014
    Assignees: The Cleveland Clinic Foundation, Cook Medical Technologies LLC
    Inventors: Roy K. Greenberg, David Ernest Hartley, Michael Lawrence-Brown
  • Patent number: 8747449
    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: Grant
    Filed: August 15, 2011
    Date of Patent: June 10, 2014
    Assignee: Cook Medical Technologies LLC
    Inventors: David Ernest Hartley, Michael Lawrence-Brown, Shirley Jansen
  • Patent number: 8734501
    Abstract: A composite stent graft has a balloon expandable stent portion (3), a tubular graft material portion (1) inside or outside of the balloon expandable stent portion and self expanding stents (5) associated with the tubular graft material portion. Part (7) of the balloon expandable stent portion can extend beyond the proximal end (9) of the tubular graft material portion. The tubular graft material can be polytetrafluoroethylene, Dacron, Thoralon™, polyamide, small intestine submucosa, collagenous extracellular matrix material, or any other suitable biocompatible material. A method of deploying which includes flaring a part (7) of the balloon expandable stent portion is also discussed.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: May 27, 2014
    Assignee: Cook Medical Technologies LLC
    Inventors: David Ernest Hartley, Michael Lawrence-Brown
  • Publication number: 20130345785
    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: July 25, 2013
    Publication date: December 26, 2013
    Inventors: David Ernest Hartley, John Lennon Anderson, Michael Lawrence-Brown
  • Patent number: 8506616
    Abstract: An endoluminal stent graft deployment system incorporating an anchor wire system for temporary anchoring of a stent graft on a delivery device. The anchor wire system has an anchor wire extending from the distal end of the device and releasably retained to the portion of the stent graft by a releasable retention system. The releasable retention system includes a bead on the proximal end of the anchor wire and an anchor release wire which has fastening arrangement to retain the release wire distally of the bead. The anchor release wire extends to a distal end of the deployment system so that the anchor wire release wire can be withdrawn thereby releasing the anchor wire.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: August 13, 2013
    Assignee: Cook Medical Technologies LLC
    Inventors: David Ernest Hartley, Wolf Stelter, Michael Lawrence-Brown
  • Patent number: 8425585
    Abstract: A stent arrangement (12) and a stent graft (2) for curved lumens of the body. The stent graft has a tubular body (4) of a graft material, at least a portion of which may be arcuate to define an inner curved side (4b) and an outer curved side (4a) at least when deployed into the curved vessel. The stent graft has a plurality of self expanding stents (10, 12, 13) affixed thereto with a greater distance (11a) between the stents on the outer curved side than on the inner curved side. The stents can be normal, tapered on one or both ends or skewed. When mounted onto a deployment device a twist (152, 154) may be provided in the graft material between adjacent stents to nest the stents.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: April 23, 2013
    Assignee: Cook Medical Technologies LLC
    Inventors: Jeffry S. Melsheimer, David Ernest Hartley, Michael Lawrence-Brown, Gregory Paul Van Schie