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).
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Publication number: 20240108793Abstract: 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: ApplicationFiled: December 8, 2023Publication date: April 4, 2024Inventors: Duncan J. Maitland, Todd L. Landsman, John Horn, Landon Nash, Chung Yeh
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Patent number: 11944317Abstract: 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: GrantFiled: June 22, 2022Date of Patent: April 2, 2024Assignees: 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
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Patent number: 11911523Abstract: 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: GrantFiled: June 1, 2021Date of Patent: February 27, 2024Assignees: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC, THE TEXAS A&M UNIVERSITY SYSTEMInventors: Duncan J. Maitland, Todd Lawrence Landsman, Tyler Joseph Touchet, Elizabeth L Cosgriff-Hernandez, Thomas S. Wilson
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Patent number: 11839702Abstract: 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: GrantFiled: May 20, 2022Date of Patent: December 12, 2023Assignees: The Texas A&M University System, SHAPE MEMORY MEDICAL, INC.Inventors: Duncan J. Maitland, Todd L Landsman, John Horn, Landon Nash, Chung Yeh
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Publication number: 20230293182Abstract: Embodiments include, for example, mechanical release systems for implantable medical devices.Type: ApplicationFiled: May 25, 2023Publication date: September 21, 2023Inventors: Le Le, Rose Y. Leo, Chung Yeh, Kasey Kwong, Rochelle Marlangaue, Todd L. Landsman, Michael Barrett
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Patent number: 11701123Abstract: Embodiments include, for example, mechanical release systems for implantable medical devices.Type: GrantFiled: August 20, 2021Date of Patent: July 18, 2023Assignee: SHAPE MEMORY MEDICAL, INC.Inventors: Le Le, Rose Y. Leo, Chung Yeh, Kasey Kwong, Rochelle Marlangaue, Todd L. Landsman, Michael Barrett
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Publication number: 20220323079Abstract: 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: ApplicationFiled: June 22, 2022Publication date: October 13, 2022Inventors: Duncan J. Maitland, Todd L. Landsman, Jennifer N. Rodriguez, Anthony J. Boyle, Alan C. Glowczwski, Mark A. Wierzbicki
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Publication number: 20220273852Abstract: 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: ApplicationFiled: May 20, 2022Publication date: September 1, 2022Inventors: Duncan J. Maitland, Todd L. Landsman, John Horn, Landon Nash, Chung Yeh
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Patent number: 11369385Abstract: 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: GrantFiled: September 25, 2020Date of Patent: June 28, 2022Assignees: THE TEXAS A&M UNIVERSITY SYSTEM, SHAPE MEMORY MEDICAL, INCInventors: Duncan J. Maitland, Todd L. Landsman, Jennifer N. Rodriguez, Anthony J. Boyle, Alan C. Glowczwski, Mark A. Wierzbicki
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Patent number: 11338070Abstract: 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: GrantFiled: November 21, 2019Date of Patent: May 24, 2022Assignees: THE TEXAS A&M UNIVERSITY SYSTEM, SHAPE MEMORY MEDICAL, INCInventors: Duncan J. Maitland, Todd L. Landsman, John Horn, Landon Nash, Chung Yeh
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Publication number: 20220054140Abstract: Embodiments include, for example, mechanical release systems for implantable medical devices.Type: ApplicationFiled: August 20, 2021Publication date: February 24, 2022Inventors: Le Le, Rose Y. Leo, Chung Yeh, Kasey Kwong, Rochelle Marlangaue, Todd L. Landsman, Michael Barrett
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Publication number: 20210015485Abstract: 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: ApplicationFiled: September 25, 2020Publication date: January 21, 2021Inventors: Duncan J. Maitland, Todd L. Landsman, Jennifer N. Rodriguez, Anthony J. Boyle, Alan C. Glowczwski, Mark A. Wierzbicki
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Patent number: 10786261Abstract: 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: GrantFiled: September 2, 2016Date of Patent: September 29, 2020Assignee: The Texas A&M University SystemInventors: Duncan J. Maitland, Todd L. Landsman, Jennifer N. Rodriguez, Anthony J. Boyle, Alan C. Glowczwski, Mark A. Wierzbicki
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Publication number: 20200086011Abstract: 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: ApplicationFiled: November 21, 2019Publication date: March 19, 2020Inventors: Duncan J. Maitland, Todd L. Landsman, John Horn, Landon Nash, Chung Yeh
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Patent number: 10485903Abstract: 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: GrantFiled: December 20, 2018Date of Patent: November 26, 2019Assignees: Shape Memory Medical, Inc., The Texas A&M University SystemInventors: Duncan J. Maitland, Todd L. Landsman, John Horn, Landon Nash, Chung Yeh
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Publication number: 20190192743Abstract: 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: ApplicationFiled: December 20, 2018Publication date: June 27, 2019Inventors: Duncan J. Maitland, Todd L. Landsman, John Horn, Landon Nash, Chung Yeh
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Publication number: 20190015108Abstract: 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: ApplicationFiled: September 2, 2016Publication date: January 17, 2019Inventors: Duncan J. Maitland, Todd L. Landsman, Jennifer N. Rodriguez, Anthony J. Boyle, Alan C. Glowczwski, Mark A. Wierzbicki