Patents by Inventor Todd L. Landsman

Todd L. Landsman 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).

  • Publication number: 20240108793
    Abstract: An embodiment includes a process for treating an abdominal aortic aneurysm (AAA) endoleak with a shape memory polymer (SMP) foam device. First, a bifurcated stent graft is placed within the aneurysm while a micro guidewire is positioned within the aneurysm for future catheter access. Second, after placing the iliac graft extension, a catheter is introduced over wire to deliver embolic foams. Third, embolic foams expand and conform to the aneurysm wall. Fourth, embolic foams create a stable thrombus to prevent endoleak formation by isolating peripheral vessels from the aneurysm volume.
    Type: Application
    Filed: December 8, 2023
    Publication date: April 4, 2024
    Inventors: Duncan J. Maitland, Todd L. Landsman, John Horn, Landon Nash, Chung Yeh
  • Patent number: 11944317
    Abstract: An embodiment includes a system comprising: an outer conduit; a shape memory polymer (SMP) foam; a metal backbone including: (a)(i) a first portion that extends from the SMP foam proximal end to the SMP foam distal end and which is generally covered by the SMP foam, and (a)(ii) a distal portion that extends distally from the SMP foam distal end and which is not covered by the SMP foam; wherein: (b)(i) SMP foam and the metal backbone are both included within the outer conduit adjacent to the outer conduit distal end; (b)(ii) the metal backbone distal portion transitions from a secondary shape that is uncoiled to a primary shape that is coiled; and (b)(iii) the metal backbone distal portion is in the metal backbone distal portion secondary shape and is located between the SMP foam distal end and the distal end of the outer conduit.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: April 2, 2024
    Assignees: THE TEXAS A&M UNIVERSITY SYSTEM, SHAPE MEMORY MEDICAL, INC.
    Inventors: Duncan J. Maitland, Todd L. Landsman, Jennifer N. Rodriguez, Anthony J. Boyle, Alan C. Glowczwski, Mark A. Wierzbicki
  • Patent number: 11911523
    Abstract: An embodiment includes a wound dressing comprising: a shape memory polymer (SMP) foam, including open cells, having first and second states; and a hydrogel (HG) included within the cells; wherein (a) in a first position a composite, including the SMP foam and the HG, is configured to be located proximate a hemorrhagic tissue with the SMP foam in the first state; (b) in a second position the composite is configured to be expanded to the second state against the hemorrhagic tissue when the SMP foam is plasticized at 37° C. depressing a glass transition temperature (Tg) of the SMP foam to below 25° C. Other embodiments are described herein.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: February 27, 2024
    Assignees: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC, THE TEXAS A&M UNIVERSITY SYSTEM
    Inventors: Duncan J. Maitland, Todd Lawrence Landsman, Tyler Joseph Touchet, Elizabeth L Cosgriff-Hernandez, Thomas S. Wilson
  • Patent number: 11839702
    Abstract: An embodiment includes a process for treating an abdominal aortic aneurysm (AAA) endoleak with a shape memory polymer (SMP) foam device. First, a bifurcated stent graft is placed within the aneurysm while a micro guidewire is positioned within the aneurysm for future catheter access. Second, after placing the iliac graft extension, a catheter is introduced over wire to deliver embolic foams. Third, embolic foams expand and conform to the aneurysm wall. Fourth, embolic foams create a stable thrombus to prevent endoleak formation by isolating peripheral vessels from the aneurysm volume.
    Type: Grant
    Filed: May 20, 2022
    Date of Patent: December 12, 2023
    Assignees: The Texas A&M University System, SHAPE MEMORY MEDICAL, INC.
    Inventors: Duncan J. Maitland, Todd L Landsman, John Horn, Landon Nash, Chung Yeh
  • Publication number: 20230293182
    Abstract: Embodiments include, for example, mechanical release systems for implantable medical devices.
    Type: Application
    Filed: May 25, 2023
    Publication date: September 21, 2023
    Inventors: Le Le, Rose Y. Leo, Chung Yeh, Kasey Kwong, Rochelle Marlangaue, Todd L. Landsman, Michael Barrett
  • Patent number: 11701123
    Abstract: Embodiments include, for example, mechanical release systems for implantable medical devices.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: July 18, 2023
    Assignee: SHAPE MEMORY MEDICAL, INC.
    Inventors: Le Le, Rose Y. Leo, Chung Yeh, Kasey Kwong, Rochelle Marlangaue, Todd L. Landsman, Michael Barrett
  • Publication number: 20220323079
    Abstract: An embodiment includes a system comprising: an outer conduit; a shape memory polymer (SMP) foam; a metal backbone including: (a)(i) a first portion that extends from the SMP foam proximal end to the SMP foam distal end and which is generally covered by the SMP foam, and (a)(ii) a distal portion that extends distally from the SMP foam distal end and which is not covered by the SMP foam; wherein: (b)(i) SMP foam and the metal backbone are both included within the outer conduit adjacent to the outer conduit distal end; (b)(ii) the metal backbone distal portion transitions from a secondary shape that is uncoiled to a primary shape that is coiled; and (b)(iii) the metal backbone distal portion is in the metal backbone distal portion secondary shape and is located between the SMP foam distal end and the distal end of the outer conduit.
    Type: Application
    Filed: June 22, 2022
    Publication date: October 13, 2022
    Inventors: Duncan J. Maitland, Todd L. Landsman, Jennifer N. Rodriguez, Anthony J. Boyle, Alan C. Glowczwski, Mark A. Wierzbicki
  • Publication number: 20220273852
    Abstract: An embodiment includes a process for treating an abdominal aortic aneurysm (AAA) endoleak with a shape memory polymer (SMP) foam device. First, a bifurcated stent graft is placed within the aneurysm while a micro guidewire is positioned within the aneurysm for future catheter access. Second, after placing the iliac graft extension, a catheter is introduced over wire to deliver embolic foams. Third, embolic foams expand and conform to the aneurysm wall. Fourth, embolic foams create a stable thrombus to prevent endoleak formation by isolating peripheral vessels from the aneurysm volume.
    Type: Application
    Filed: May 20, 2022
    Publication date: September 1, 2022
    Inventors: Duncan J. Maitland, Todd L. Landsman, John Horn, Landon Nash, Chung Yeh
  • Patent number: 11369385
    Abstract: An embodiment includes a system comprising: an outer conduit; a shape memory polymer (SMP) foam; a metal backbone including: (a)(i) a first portion that extends from the SMP foam proximal end to the SMP foam distal end and which is generally covered by the SMP foam, and (a)(ii) a distal portion that extends distally from the SMP foam distal end and which is not covered by the SMP foam; wherein: (b)(i) SMP foam and the metal backbone are both included within the outer conduit adjacent to the outer conduit distal end; (b)(ii) the metal backbone distal portion transitions from a secondary shape that is uncoiled to a primary shape that is coiled; and (b)(iii) the metal backbone distal portion is in the metal backbone distal portion secondary shape and is located between the SMP foam distal end and the distal end of the outer conduit.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: June 28, 2022
    Assignees: THE TEXAS A&M UNIVERSITY SYSTEM, SHAPE MEMORY MEDICAL, INC
    Inventors: Duncan J. Maitland, Todd L. Landsman, Jennifer N. Rodriguez, Anthony J. Boyle, Alan C. Glowczwski, Mark A. Wierzbicki
  • Patent number: 11338070
    Abstract: An embodiment includes a process for treating an abdominal aortic aneurysm (AAA) endoleak with a shape memory polymer (SMP) foam device. First, a bifurcated stent graft is placed within the aneurysm while a micro guidewire is positioned within the aneurysm for future catheter access. Second, after placing the iliac graft extension, a catheter is introduced over wire to deliver embolic foams. Third, embolic foams expand and conform to the aneurysm wall. Fourth, embolic foams create a stable thrombus to prevent endoleak formation by isolating peripheral vessels from the aneurysm volume.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: May 24, 2022
    Assignees: THE TEXAS A&M UNIVERSITY SYSTEM, SHAPE MEMORY MEDICAL, INC
    Inventors: Duncan J. Maitland, Todd L. Landsman, John Horn, Landon Nash, Chung Yeh
  • Publication number: 20220054140
    Abstract: Embodiments include, for example, mechanical release systems for implantable medical devices.
    Type: Application
    Filed: August 20, 2021
    Publication date: February 24, 2022
    Inventors: Le Le, Rose Y. Leo, Chung Yeh, Kasey Kwong, Rochelle Marlangaue, Todd L. Landsman, Michael Barrett
  • Publication number: 20210015485
    Abstract: An embodiment includes a system comprising: an outer conduit; a shape memory polymer (SMP) foam; a metal backbone including: (a)(i) a first portion that extends from the SMP foam proximal end to the SMP foam distal end and which is generally covered by the SMP foam, and (a)(ii) a distal portion that extends distally from the SMP foam distal end and which is not covered by the SMP foam; wherein: (b)(i) SMP foam and the metal backbone are both included within the outer conduit adjacent to the outer conduit distal end; (b)(ii) the metal backbone distal portion transitions from a secondary shape that is uncoiled to a primary shape that is coiled; and (b)(iii) the metal backbone distal portion is in the metal backbone distal portion secondary shape and is located between the SMP foam distal end and the distal end of the outer conduit.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 21, 2021
    Inventors: Duncan J. Maitland, Todd L. Landsman, Jennifer N. Rodriguez, Anthony J. Boyle, Alan C. Glowczwski, Mark A. Wierzbicki
  • Patent number: 10786261
    Abstract: An embodiment includes a system comprising: an outer conduit; a shape memory polymer (SMP) foam; a metal backbone including: (a)(i) a first portion that extends from the SMP foam proximal end to the SMP foam distal end and which is generally covered by the SMP foam, and (a)(ii) a distal portion that extends distally from the SMP foam distal end and which is not covered by the SMP foam; wherein: (b)(i) SMP foam and the metal backbone are both included within the outer conduit adjacent to the outer conduit distal end; (b)(ii) the metal backbone distal portion transitions from a secondary shape that is uncoiled to a primary shape that is coiled; and (b)(iii) the metal backbone distal portion is in the metal backbone distal portion secondary shape and is located between the SMP foam distal end and the distal end of the outer conduit.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: September 29, 2020
    Assignee: The Texas A&M University System
    Inventors: Duncan J. Maitland, Todd L. Landsman, Jennifer N. Rodriguez, Anthony J. Boyle, Alan C. Glowczwski, Mark A. Wierzbicki
  • Publication number: 20200086011
    Abstract: An embodiment includes a process for treating an abdominal aortic aneurysm (AAA) endoleak with a shape memory polymer (SMP) foam device. First, a bifurcated stent graft is placed within the aneurysm while a micro guidewire is positioned within the aneurysm for future catheter access. Second, after placing the iliac graft extension, a catheter is introduced over wire to deliver embolic foams. Third, embolic foams expand and conform to the aneurysm wall. Fourth, embolic foams create a stable thrombus to prevent endoleak formation by isolating peripheral vessels from the aneurysm volume.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Inventors: Duncan J. Maitland, Todd L. Landsman, John Horn, Landon Nash, Chung Yeh
  • Patent number: 10485903
    Abstract: An embodiment includes a process for treating an abdominal aortic aneurysm (AAA) endoleak with a shape memory polymer (SMP) foam device. First, a bifurcated stent graft is placed within the aneurysm while a micro guidewire is positioned within the aneurysm for future catheter access. Second, after placing the iliac graft extension, a catheter is introduced over wire to deliver embolic foams. Third, embolic foams expand and conform to the aneurysm wall. Fourth, embolic foams create a stable thrombus to prevent endoleak formation by isolating peripheral vessels from the aneurysm volume.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: November 26, 2019
    Assignees: Shape Memory Medical, Inc., The Texas A&M University System
    Inventors: Duncan J. Maitland, Todd L. Landsman, John Horn, Landon Nash, Chung Yeh
  • Publication number: 20190192743
    Abstract: An embodiment includes a process for treating an abdominal aortic aneurysm (AAA) endoleak with a shape memory polymer (SMP) foam device. First, a bifurcated stent graft is placed within the aneurysm while a micro guidewire is positioned within the aneurysm for future catheter access. Second, after placing the iliac graft extension, a catheter is introduced over wire to deliver embolic foams. Third, embolic foams expand and conform to the aneurysm wall. Fourth, embolic foams create a stable thrombus to prevent endoleak formation by isolating peripheral vessels from the aneurysm volume.
    Type: Application
    Filed: December 20, 2018
    Publication date: June 27, 2019
    Inventors: Duncan J. Maitland, Todd L. Landsman, John Horn, Landon Nash, Chung Yeh
  • Publication number: 20190015108
    Abstract: An embodiment includes a system comprising: an outer conduit; a shape memory polymer (SMP) foam; a metal backbone including: (a)(i) a first portion that extends from the SMP foam proximal end to the SMP foam distal end and which is generally covered by the SMP foam, and (a)(ii) a distal portion that extends distally from the SMP foam distal end and which is not covered by the SMP foam; wherein: (b)(i) SMP foam and the metal backbone are both included within the outer conduit adjacent to the outer conduit distal end; (b)(ii) the metal backbone distal portion transitions from a secondary shape that is uncoiled to a primary shape that is coiled; and (b)(iii) the metal backbone distal portion is in the metal backbone distal portion secondary shape and is located between the SMP foam distal end and the distal end of the outer conduit.
    Type: Application
    Filed: September 2, 2016
    Publication date: January 17, 2019
    Inventors: Duncan J. Maitland, Todd L. Landsman, Jennifer N. Rodriguez, Anthony J. Boyle, Alan C. Glowczwski, Mark A. Wierzbicki