Patents by Inventor Dillon Williams

Dillon Williams 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).

  • Balloon encapsulation and isovolumetric suction thrombectomy catheter and methods thereof
    Patent number: 11490910
    Abstract: The disclosure provides for an adjustable catheter system with isovolumetric suction and restoration of fluid for the removal of a thrombus and a method of use thereof. The catheter system includes an inner catheter and an outer sheath surrounding at least a portion of the inner catheter. The inner catheter may include at least three lumina extending from the proximal end to the distal end of the inner catheter, at least one infusion fenestration along the infusion segment, and a distal encapsulation balloon at the distal end. The outer sheath may include at least three lumina extending from the proximal end to the distal end of the outer sheath and a proximal encapsulation balloon at the distal end. The catheter system may further include an agitator for mechanical morcellation of the thrombus.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: November 8, 2022
    Assignee: Washington University
    Inventors: Eric Leuthardt, Mohamed Zayed, Guy Genin, Joshua Osbun, Gayan De Silva, Sanghun A. Lee, Dillon Williams, Alexander Wirtz
  • Tailored venous anastomosis for arteriovenous grafts
    Patent number: 11369381
    Abstract: An arteriovenous graft and methods of reducing the risk of graft thrombosis and extending patency of the arteriovenous graft are provided herein. The arteriovenous graft is operable for attaching to a vein at a venous anastomosis. In some aspects, the arteriovenous graft includes a plurality of grooves at a venous anastomosis end of the arteriovenous graft and the venous anastomoses may be arranged such that the arteriovenous graft and the vein meet at an angle of 30° or less.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: June 28, 2022
    Assignee: Washington University
    Inventors: Mohamed Zayed, Dillon Williams, Guy Genin, Eric Leuthardt
  • BALLOON ENCAPSULATION AND ISOVOLUMETRIC SUCTION THROMBECTOMY CATHETER AND METHODS THEREOF
    Publication number: 20220047282
    Abstract: The disclosure provides for an adjustable catheter system with isovolumetric suction and restoration of fluid for the removal of a thrombus and a method of use thereof. The catheter system includes an inner catheter and an outer sheath surrounding at least a portion of the inner catheter. The inner catheter may include at least three lumina extending from the proximal end to the distal end of the inner catheter, at least one infusion fenestration along the infusion segment, and a distal encapsulation balloon at the distal end. The outer sheath may include at least three lumina extending from the proximal end to the distal end of the outer sheath and a proximal encapsulation balloon at the distal end. The catheter system may further include an agitator for mechanical morcellation of the thrombus.
    Type: Application
    Filed: September 26, 2019
    Publication date: February 17, 2022
    Inventors: Eric Leuthardt, Mohamed Zayed, Guy Genin, Joshua Osbun, Gayan De Silva, Sanghun A. Lee, Dillon Williams, Alexander Wirtz
  • BALLOON ENCAPSULATION AND ISOVOLUMETRIC SUCTION THROMBECTOMY CATHETER AND METHODS THEREOF
    Publication number: 20220000498
    Abstract: The disclosure provides for an adjustable catheter system with isovolumetric suction and restoration of fluid for the removal of a thrombus and a method of use thereof. The catheter system includes an inner catheter and an outer sheath surrounding at least a portion of the inner catheter. The inner catheter may include at least three lumina extending from the proximal end to the distal end of the inner catheter, at least one infusion fenestration along the infusion segment, and a distal encapsulation balloon at the distal end. The outer sheath may include at least three lumina extending from the proximal end to the distal end of the outer sheath and a proximal encapsulation balloon at the distal end. The catheter system may further include an agitator for mechanical morcellation of the thrombus.
    Type: Application
    Filed: September 7, 2021
    Publication date: January 6, 2022
    Inventors: Eric Leuthardt, Mohamed Zayed, Guy Genin, Joshua Osbun, Gayan De Silva, Sanghun A. Lee, Dillon Williams, Alexander Wirtz
  • TAILORED VENOUS ANASTOMOSIS FOR ARTERIOVENOUS GRAFTS
    Publication number: 20210000471
    Abstract: An arteriovenous graft and methods of reducing the risk of graft thrombosis and extending patency of the arteriovenous graft are provided herein. The arteriovenous graft is operable for attaching to a vein at a venous anastomosis. In some aspects, the arteriovenous graft includes a plurality of grooves at a venous anastomosis end of the arteriovenous graft and the venous anastomoses may be arranged such that the arteriovenous graft and the vein meet at an angle of 30° or less.
    Type: Application
    Filed: July 2, 2020
    Publication date: January 7, 2021
    Applicant: Washington University, St. Louis, MO
    Inventors: Mohamed Zayed, Dillon Williams, Guy Genin, Eric Leuthardt