Patents by Inventor Landon Nash
Landon Nash 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: 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: 20220304667Abstract: A device for a tissue channel includes a device frame, a shape memory polymer foam segment coupled to the device frame, and an attachment structure coupled to the device frame. The device frame includes a proximal structure, a distal structure, and an intermediate structure coupled to the proximal structure and the distal structure. The proximal structure is configured to collapse to fit into a delivery structure and expand to block migration of the proximal structure. The distal structure is configured to collapse to fit into the delivery structure and expand to block migration of the distal structure. The intermediate structure is configured to fit in the tissue channel upon device deployment. The shape memory polymer foam segment is configured to compress to fit into the delivery structure and occlude the channel. The attachment structure is configured to attach and detach the device from a delivery guide.Type: ApplicationFiled: June 10, 2022Publication date: September 29, 2022Inventors: Mark A. Wierzbicki, Duncan Maitland, Matthew W. Miller, Andrea D. Muschenborn, Landon Nash, Jason M. Szafron, Todd Landsman
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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: 11357488Abstract: A device for a tissue channel includes a device frame, a shape memory polymer foam segment coupled to the device frame, and an attachment structure coupled to the device frame. The device frame includes a proximal structure, a distal structure, and an intermediate structure coupled to the proximal structure and the distal structure. The proximal structure is configured to collapse to fit into a delivery structure and expand to block migration of the proximal structure. The distal structure is configured to collapse to fit into the delivery structure and expand to block migration of the distal structure. The intermediate structure is configured to fit in the tissue channel upon device deployment. The shape memory polymer foam segment is configured to compress to fit into the delivery structure and occlude the channel. The attachment structure is configured to attach and detach the device from a delivery guide.Type: GrantFiled: January 24, 2020Date of Patent: June 14, 2022Assignee: THE TEXAS A&M UNIVERSITY SYSTEMInventors: Mark A. Wierzbicki, Duncan Maitland, Matthew W. Miller, Andrea D. Muschenborn, Landon Nash, Jason M. Szafron, Todd Landsman
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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: 20220105249Abstract: An embodiment includes a shape memory polymer (SMP) foam with visibility under both X-ray and magnetic resonance imaging (MRI) modalities. Dual modality visibility is achieved by chemically incorporating monomers with X-ray visible iodine-motifs and MRI visible monomers with gadolinium content. This material platform has the potential to be used in a variety of medical devices.Type: ApplicationFiled: October 6, 2021Publication date: April 7, 2022Inventors: Grace Fletcher, Duncan Maitland, Landon Nash, Todd Landsman, Chung Yeh, Edward Ruppel, Meghan Reu
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Publication number: 20200155131Abstract: A device for a tissue channel includes a device frame, a shape memory polymer foam segment coupled to the device frame, and an attachment structure coupled to the device frame. The device frame includes a proximal structure, a distal structure, and an intermediate structure coupled to the proximal structure and the distal structure. The proximal structure is configured to collapse to fit into a delivery structure and expand to block migration of the proximal structure. The distal structure is configured to collapse to fit into the delivery structure and expand to block migration of the distal structure. The intermediate structure is configured to fit in the tissue channel upon device deployment. The shape memory polymer foam segment is configured to compress to fit into the delivery structure and occlude the channel. The attachment structure is configured to attach and detach the device from a delivery guide.Type: ApplicationFiled: January 24, 2020Publication date: May 21, 2020Inventors: Mark A. Wierzbicki, Duncan Maitland, Matthew W. Miller, Andrea D. Muschenborn, Landon Nash, Jason M. Szafron, Todd Landsman
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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: 10555737Abstract: A device for a tissue channel includes a device frame, a shape memory polymer foam segment coupled to the device frame, and an attachment structure coupled to the device frame. The device frame includes a proximal structure, a distal structure, and an intermediate structure coupled to the proximal structure and the distal structure. The proximal structure is configured to collapse to fit into a delivery structure and expand to block migration of the proximal structure. The distal structure is configured to collapse to fit into the delivery structure and expand to block migration of the distal structure. The intermediate structure is configured to fit in the tissue channel upon device deployment. The shape memory polymer foam segment is configured to compress to fit into the delivery structure and occlude the channel. The attachment structure is configured to attach and detach the device from a delivery guide.Type: GrantFiled: April 22, 2016Date of Patent: February 11, 2020Assignee: The Texas A&M University SystemInventors: Mark A. Wierzbicki, Duncan Maitland, Matthew W. Miller, Andrea D. Muschenborn, Landon Nash, Jason M. Szafron, Todd Landsman
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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: 20180132856Abstract: A device for a tissue channel includes a device frame, a shape memory polymer foam segment coupled to the device frame, and an attachment structure coupled to the device frame. The device frame includes a proximal structure, a distal structure, and an intermediate structure coupled to the proximal structure and the distal structure. The proximal structure is configured to collapse to fit into a delivery structure and expand to block migration of the proximal structure. The distal structure is configured to collapse to fit into the delivery structure and expand to block migration of the distal structure. The intermediate structure is configured to fit in the tissue channel upon device deployment. The shape memory polymer foam segment is configured to compress to fit into the delivery structure and occlude the channel. The attachment structure is configured to attach and detach the device from a delivery guide.Type: ApplicationFiled: April 22, 2016Publication date: May 17, 2018Inventors: Mark A. Wierzbicki, Duncan Maitland, Matthew W. Miller, Andrea D. Muschenborn, Landon Nash, Jason M. Szafron, Todd Landsman