Patents by Inventor Ward Small IV
Ward Small IV 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: 20240261082Abstract: A stent for treating a physical anomaly. The stent includes a skeletal support structure for expanding in the physical anomaly and a shape memory material coupled to the skeletal support structure.Type: ApplicationFiled: January 8, 2024Publication date: August 8, 2024Inventors: Thomas S. Wilson, Duncan J. Maitland, Ward Small, IV, Patrick R. Buckley, William J. Benett, Jonathan Hartman, David Saloner
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Publication number: 20240008875Abstract: An embodiment of the invention includes an expandable implant to endovascularly embolize an anatomical void or malformation, such as an aneurysm. An embodiment is comprised of a chain or linked sequence of expandable polymer foam elements. Another embodiment includes an elongated length of expandable polymer foam coupled to a backbone. Another embodiment includes a system for endovascular delivery of an expandable implant (e.g., shape memory polymer) to embolize an aneurysm. The system may include a microcatheter, a lumen-reducing collar coupled to the distal tip of the microcatheter, a flexible pushing element detachably coupled to an expandable implant, and a flexible tubular sheath inside of which the compressed implant and pushing element are pre-loaded. Other embodiments are described herein.Type: ApplicationFiled: September 19, 2023Publication date: January 11, 2024Inventors: Thomas S. Wilson, Ward Small, IV, William J. Benett, Jason M. Ortega, Duncan J. Maitland, Jonathan Hartman
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Patent number: 11864989Abstract: A system comprising first, second, and third shape memory polymers (SMPs); wherein (a) the first SMP is a biodegradable open cell foam that includes a first channel; (b) the second SMP includes a second channel and is included in the first channel; (c) the foam is in a first state and is configured to expand to a second state, radially outward from the second foam, in response to thermal stimulus; (d) the third SMP is between the first and second SMPs and includes a stent having a first strut that includes the third SMP and a second strut that includes the third SMP; and (e) each of the first, second, and third SMPs is coupled to a wire.Type: GrantFiled: October 14, 2020Date of Patent: January 9, 2024Assignees: Lawrence Livermore National Security, LLC, The Regents of the University of CaliforniaInventors: Thomas S. Wilson, Duncan J. Maitland, Ward Small, IV, Patrick R. Buckley, William J. Benett, Jonathan Hartman, David Saloner
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Patent number: 11771435Abstract: An embodiment of the invention includes an expandable implant to endovascularly embolize an anatomical void or malformation, such as an aneurysm. An embodiment is comprised of a chain or linked sequence of expandable polymer foam elements. Another embodiment includes an elongated length of expandable polymer foam coupled to a backbone. Another embodiment includes a system for endovascular delivery of an expandable implant (e.g., shape memory polymer) to embolize an aneurysm. The system may include a microcatheter, a lumen-reducing collar coupled to the distal tip of the microcatheter, a flexible pushing element detachably coupled to an expandable implant, and a flexible tubular sheath inside of which the compressed implant and pushing element are pre-loaded. Other embodiments are described herein.Type: GrantFiled: January 22, 2021Date of Patent: October 3, 2023Assignees: Lawrence Livermore National Security, LLC, The Texas A&M University SystemInventors: Thomas S. Wilson, Ward Small, IV, William J. Benett, Jason M. Ortega, Duncan J. Maitland, Jonathan Hartman
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Publication number: 20230098681Abstract: An embodiment includes a system comprising: a monolithic shape memory polymer (SMP) foam having first and second states; wherein the SMP foam includes: (a) polyurethane, (b) an inner half portion having inner reticulated cells defined by inner struts, (c) an outer half portion, having outer reticulated cells defined by outer struts, surrounding the inner portion in a plane that provides a cross-section of the SMP foam, (d) hydroxyl groups chemically bound to outer surfaces of both the inner and outer struts. Other embodiments are discussed herein.Type: ApplicationFiled: September 29, 2022Publication date: March 30, 2023Inventors: Landon D. Nash, Duncan J. Maitland, Nicole Docherty, Thomas S. Wilson, Ward Small, IV, Jason Ortega, Pooja Singhal
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Publication number: 20220370086Abstract: An embolectomy device comprised of an expansion unit and a support unit is disclosed. The expansion unit can be actuated in response to one or more external stimuli, and the support unit, located proximately to the expansion unit, provides a force to hold the expansion unit in place and to further induce the expansion unit's radial expansion. The radial expansion of the expansion unit causes the expansion unit to physically contact a blood clot, enabling the blood clot to be removed. In some embodiments, the expansion unit can be fabricated from a shape memory polymer foam. In some embodiments the support unit can be fabricated from any elastic material including, without limitation, shape memory alloys.Type: ApplicationFiled: August 5, 2022Publication date: November 24, 2022Inventors: Jason Szafron, Duncan Maitland, Ward Small, IV, Patrick R. Buckley, Andrea D. Muschenborn
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Patent number: 11459439Abstract: An embodiment includes a system comprising: a monolithic shape memory polymer (SMP) foam having first and second states; wherein the SMP foam includes: (a) polyurethane, (b) an inner half portion having inner reticulated cells defined by inner struts, (c) an outer half portion, having outer reticulated cells defined by outer struts, surrounding the inner portion in a plane that provides a cross-section of the SMP foam, (d) hydroxyl groups chemically bound to outer surfaces of both the inner and outer struts. Other embodiments are discussed herein.Type: GrantFiled: August 4, 2020Date of Patent: October 4, 2022Assignees: Lawrence Livermore National Security, LLC, The Texas A&M University SystemInventors: Landon D. Nash, Duncan J. Maitland, Nicole Docherty, Thomas S. Wilson, Ward Small, IV, Jason Ortega, Pooja Singhal
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Patent number: 11406401Abstract: An embolectomy device comprised of an expansion unit and a support unit is disclosed. The expansion unit can be actuated in response to one or more external stimuli, and the support unit, located proximately to the expansion unit, provides a force to hold the expansion unit in place and to further induce the expansion unit's radial expansion. The radial expansion of the expansion unit causes the expansion unit to physically contact a blood clot, enabling the blood clot to be removed. In some embodiments, the expansion unit can be fabricated from a shape memory polymer foam. In some embodiments the support unit can be fabricated from any elastic material including, without limitation, shape memory alloys.Type: GrantFiled: December 3, 2019Date of Patent: August 9, 2022Assignees: Lawrence Livermore National Security, LLC, The Texas A&M University SystemInventors: Jason Szafron, Duncan Maitland, Ward Small, IV, Patrick R. Buckley, Andrea D. Muschenborn
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Publication number: 20220064481Abstract: A product includes a porous three-dimensional printed structure having printed filaments arranged in a geometric pattern. The printed filaments include a material having a plurality of gas-filled microballoons. The printed structure has hierarchical porosity including an inter-filament porosity defined by the arrangement of the printed filaments, and an intra-filament porosity of the material. The intra-filament porosity is defined by the plurality of gas-filled microballoons in the material of the printed filament.Type: ApplicationFiled: November 9, 2021Publication date: March 3, 2022Inventors: Jennifer Nicole Rodriguez, Eric B. Duoss, Alexandra Golobic, Jeremy M. Lenhardt, Lemuel Perez Perez, Ward Small, IV, Thomas S. Wilson, Amanda Wu, Timothy Dexter Yee, Stephanie Schulze
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Publication number: 20210137527Abstract: An embodiment of the invention includes an expandable implant to endovascularly embolize an anatomical void or malformation, such as an aneurysm. An embodiment is comprised of a chain or linked sequence of expandable polymer foam elements. Another embodiment includes an elongated length of expandable polymer foam coupled to a backbone. Another embodiment includes a system for endovascular delivery of an expandable implant (e.g., shape memory polymer) to embolize an aneurysm. The system may include a microcatheter, a lumen-reducing collar coupled to the distal tip of the microcatheter, a flexible pushing element detachably coupled to an expandable implant, and a flexible tubular sheath inside of which the compressed implant and pushing element are pre-loaded. Other embodiments are described herein.Type: ApplicationFiled: January 22, 2021Publication date: May 13, 2021Inventors: Thomas S. Wilson, Ward Small, IV, William J. Benett, Jason M. Ortega, Duncan J. Maitland, Jonathan Hartman
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Publication number: 20210022847Abstract: A stent for treating a physical anomaly. The stent includes a skeletal support structure for expanding in the physical anomaly and a shape memory material coupled to the skeletal support structure.Type: ApplicationFiled: October 14, 2020Publication date: January 28, 2021Inventors: Thomas S. Wilson, Duncan J. Maitland, Ward Small, IV, Patrick R. Buckley, William J. Benett, Jonathan Hartman, David Saloner
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Patent number: 10898199Abstract: An embodiment of the invention includes an expandable implant to endovascularly embolize an anatomical void or malformation, such as an aneurysm. An embodiment is comprised of a chain or linked sequence of expandable polymer foam elements. Another embodiment includes an elongated length of expandable polymer foam coupled to a backbone. Another embodiment includes a system for endovascular delivery of an expandable implant (e.g., shape memory polymer) to embolize an aneurysm. The system may include a microcatheter, a lumen-reducing collar coupled to the distal tip of the microcatheter, a flexible pushing element detachably coupled to an expandable implant, and a flexible tubular sheath inside of which the compressed implant and pushing element are pre-loaded. Other embodiments are described herein.Type: GrantFiled: May 18, 2018Date of Patent: January 26, 2021Assignees: Lawrence Livermore National Security, LLC, The Texas A&M University SystemInventors: Thomas S. Wilson, Ward Small, IV, William J. Benett, Jason M. Ortega, Duncan J. Maitland, Jonathan Hartman
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Publication number: 20200362134Abstract: An embodiment includes a system comprising: a monolithic shape memory polymer (SMP) foam having first and second states; wherein the SMP foam includes: (a) polyurethane, (b) an inner half portion having inner reticulated cells defined by inner struts, (c) an outer half portion, having outer reticulated cells defined by outer struts, surrounding the inner portion in a plane that provides a cross-section of the SMP foam, (d) hydroxyl groups chemically bound to outer surfaces of both the inner and outer struts. Other embodiments are discussed herein.Type: ApplicationFiled: August 4, 2020Publication date: November 19, 2020Inventors: Landon D. Nash, Duncan J. Maitland, Nicole Docherty, Thomas S. Wilson, Ward Small, IV, Jason Ortega, Pooja Singhal
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Patent number: 10806561Abstract: A stent for treating a physical anomaly. The stent includes a skeletal support structure for expanding in the physical anomaly and a shape memory material coupled to the skeletal support structure.Type: GrantFiled: September 24, 2018Date of Patent: October 20, 2020Assignees: Lawrence Livermore National Security, LLC, The Regents of the University of CaliforniaInventors: Thomas S. Wilson, Duncan J. Maitland, Ward Small, IV, Patrick R. Buckley, William J. Benett, Jonathan Hartman, David A. Saloner
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Patent number: 10781294Abstract: An embodiment includes a system comprising: a monolithic shape memory polymer (SMP) foam having first and second states; wherein the SMP foam includes: (a) polyurethane, (b) an inner half portion having inner reticulated cells defined by inner struts, (c) an outer half portion, having outer reticulated cells defined by outer struts, surrounding the inner portion in a plane that provides a cross-section of the SMP foam, (d) hydroxyl groups chemically bound to outer surfaces of both the inner and outer struts. Other embodiments are discussed herein.Type: GrantFiled: July 22, 2016Date of Patent: September 22, 2020Assignees: Lawrence Livermore National Security, LLC, The Texas A&M University SystemInventors: Landon D. Nash, Duncan J. Maitland, Nicole Docherty, Thomas S. Wilson, Ward Small, IV, Jason Ortega, Pooja Singhal
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Publication number: 20200107841Abstract: An embolectomy device comprised of an expansion unit and a support unit is disclosed. The expansion unit can be actuated in response to one or more external stimuli, and the support unit, located proximately to the expansion unit, provides a force to hold the expansion unit in place and to further induce the expansion unit's radial expansion. The radial expansion of the expansion unit causes the expansion unit to physically contact a blood clot, enabling the blood clot to be removed. In some embodiments, the expansion unit can be fabricated from a shape memory polymer foam. In some embodiments the support unit can be fabricated from any elastic material including, without limitation, shape memory alloys.Type: ApplicationFiled: December 3, 2019Publication date: April 9, 2020Inventors: Jason Szafron, Duncan Maitland, Ward Small, IV, Patrick R. Buckley, Andrea D. Muschenborn
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Patent number: 10499935Abstract: An embolectomy device comprised of an expansion unit and a support unit is disclosed. The expansion unit can be actuated in response to one or more external stimuli, and the support unit, located proximately to the expansion unit, provides a force to hold the expansion unit in place and to further induce the expansion unit's radial expansion. The radial expansion of the expansion unit causes the expansion unit to physically contact a blood clot, enabling the blood clot to be removed. In some embodiments, the expansion unit can be fabricated from a shape memory polymer foam. In some embodiments the support unit can be fabricated from any elastic material including, without limitation, shape memory alloys.Type: GrantFiled: April 8, 2016Date of Patent: December 10, 2019Assignee: Lawrence Livermore National Security, LLCInventors: Jason Szafron, Duncan Maitland, Ward Small, IV, Patrick Buckley, Andrea D. Muschenborn
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Publication number: 20190021838Abstract: A stent for treating a physical anomaly. The stent includes a skeletal support structure for expanding in the physical anomaly and a shape memory material coupled to the skeletal support structure.Type: ApplicationFiled: September 24, 2018Publication date: January 24, 2019Inventors: Thomas S. Wilson, Duncan J. Maitland, Ward Small, IV, Patrick R. Buckley, William J. Benett, Jonathan Hartman, David A. Saloner
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Patent number: 10161390Abstract: A resistively heated shape memory polymer device is operated using resistive heating to heat the shape memory polymer device. The resistively heated shape memory polymer device is made by providing a wire that includes a resistive medium. The wire is coated with a first shape memory polymer. The wire is exposed and electrical leads are attached to the wire. In one embodiment the shape memory polymer device is in the form of a clot destruction device. In another embodiment the shape memory polymer device is in the form of a microvalve. In another embodiment the shape memory polymer device is in the form of a micropump. In yet another embodiment the shape memory polymer device is in the form of a thermostat or relay switch.Type: GrantFiled: March 14, 2013Date of Patent: December 25, 2018Assignee: Lawrence Livermore National Security, LLCInventors: John E. Marion, III, Jane P. Bearinger, Thomas S. Wilson, Ward Small, IV, Duncan J. Maitland
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Patent number: 10107270Abstract: A resistively heated shape memory polymer device is operated using resistive heating to heat the shape memory polymer device. The resistively heated shape memory polymer device is made by providing a wire that includes a resistive medium. The wire is coated with a first shape memory polymer. The wire is exposed and electrical leads are attached to the wire. In one embodiment the shape memory polymer device is in the form of a clot destruction device. In another embodiment the shape memory polymer device is in the form of a microvalve. In another embodiment the shape memory polymer device is in the form of a micropump. In yet another embodiment the shape memory polymer device is in the form of a thermostat or relay switch.Type: GrantFiled: February 25, 2016Date of Patent: October 23, 2018Assignee: Lawrence Livermore National Security, LLCInventors: John E. Marion, III, Jane P. Bearinger, Thomas S. Wilson, Ward Small, IV, Duncan J. Maitland