Patents by Inventor William R. Patterson

William R. Patterson 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: 20240081829
    Abstract: A system for delivering an implant device to a vascular site in a patient a delivery pusher apparatus, an implant device detachably connected to the delivery pusher apparatus by a tether having a distal end connected to a proximal end of the implant device, wherein the tether is substantially non-tensioned when connecting the implant device to the delivery pusher, and an electrical heating element configured coaxially around at least a portion of the tether, wherein heat generated by the heating element severs the tether at a point near the proximal end of the implant device.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 14, 2024
    Applicant: MicroVention, Inc.
    Inventors: Claudio Plaza, Scott Hemmelgarn, Eileen Charlton, Todd Hewitt, Philippe Marchand, Daniel Welsh, William R. Patterson, Son Pham
  • Publication number: 20240084210
    Abstract: Described herein are durable coatings, i.e. for medical devices, and methods of forming the coatings.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Hussain Rangwala, William R. Patterson, Aaron Baldwin
  • Patent number: 11849955
    Abstract: A system for delivering an implant device to a vascular site in a patient a delivery pusher apparatus, an implant device detachably connected to the delivery pusher apparatus by a tether having a distal end connected to a proximal end of the implant device, wherein the tether is substantially non-tensioned when connecting the implant device to the delivery pusher, and an electrical heating element configured coaxially around at least a portion of the tether, wherein heat generated by the heating element severs the tether at a point near the proximal end of the implant device.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: December 26, 2023
    Assignee: MicroVention, Inc.
    Inventors: Claudio Plaza, Scott Hemmelgarn, Eileen Charlton, Todd Hewitt, Philippe Marchand, Daniel Welsh, William R. Patterson, Son Pham
  • Patent number: 11827862
    Abstract: Described herein are durable coatings, i.e. for medical devices, and methods of forming the coatings.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: November 28, 2023
    Assignee: MicroVention, Inc.
    Inventors: Hussain Rangwala, William R. Patterson, Aaron Baldwin
  • Publication number: 20230338035
    Abstract: Devices and methods for treatment of a patient's vasculature may include a resilient self-expanding permeable implant having a plurality of elongate filaments secured in a hub at a proximal end of the permeable implant. Each of the plurality of elongate filaments may have a diameter between about 0.0005 and about 0.005 inches. The implant includes at least some filaments consisting of nitinol and at least some composite filaments that are drawn filled tube wires comprising an external nitinol tube and a radiopaque material concentrically disposed within the external tube. The implant has at least about 40% composite filaments relative to a total number of filaments, and wherein a total number of filaments is about 10 to about 300.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 26, 2023
    Inventors: Todd J. Hewitt, Brian E. Merritt, William R. Patterson
  • Publication number: 20230270441
    Abstract: Methods and devices for treating a cerebral aneurysm are described. The device may include proximal and distal self-expanding resilient permeable shells each including a plurality of elongate resilient filaments having a braided structure. The distal permeable shell may include a first plurality of filaments gathered at least at the proximal end thereof. The proximal permeable shell may include a second plurality of filaments are gathered at least at the proximal end thereof. The expanded state of the distal permeable shell may have a convex shape at the distal end of the distal permeable shell and the expanded state of the proximal permeable shell may have a generally convex shape at the proximal end of the proximal permeable shell. The expanded states of the distal and proximal permeable shells may also define a toroidal cavity through which an elongate support member extends.
    Type: Application
    Filed: May 8, 2023
    Publication date: August 31, 2023
    Inventors: Todd Hewitt, Brian E. Merritt, William R. Patterson, James M. Thompson, Claudio Plaza, Hung P. Tran
  • Patent number: 11723667
    Abstract: Devices and methods for treatment of a patient's vasculature may include a resilient self-expanding permeable implant having a radially constrained elongated state configured for delivery within a catheter lumen and an expanded state with a longitudinally shortened configuration, and a plurality of elongate filaments which are woven together. Each of the plurality of elongate filaments may have a diameter between about 0.0005 and about 0.005 inches. The implant includes at least some filaments consisting of nitinol and at least some composite filaments that are drawn filled tube wires comprising an external nitinol tube and a highly radiopaque material concentrically disposed within the external tube. The implant has at least about 40% composite filaments relative to a total number of filaments, and wherein a total number of filaments is about 10 to about 300.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: August 15, 2023
    Assignee: MICROVENTION, INC.
    Inventors: Todd Hewitt, Brian E. Merritt, William R. Patterson
  • Publication number: 20230252631
    Abstract: A neural network apparatus receives, as input from a user device, digital imaging information and the clinical information for an aneurysm patient and generates, using a neural network trained for aneurysm outcome prediction, the digital imaging information, and the clinical information, an outcome prediction for at least one intrasaccular implant device for implant in an aneurysm sac identified in the digital imaging information and having a highest predicted likelihood of complete occlusion of the aneurysm sac from a set of potential treatment devices. The apparatus is further configured to output, for display on a device, an identification of the at least one intrasaccular implant device and the outcome prediction for each of the at least one intrasaccular implant device.
    Type: Application
    Filed: February 7, 2023
    Publication date: August 10, 2023
    Inventors: Satyananda Kashyap, Hakan Bulu, Ashutosh Jadhav, Ronak Dholakia, Amon Y. Liu, Hussain S. Rangwala, William R. Patterson, Mehdi Moradi
  • Patent number: 11690740
    Abstract: A vascular prosthesis (e.g., stent), and packaging and delivery system to selectively deliver a vascular prosthesis are described. In some embodiments, the vascular prosthesis utilizes a low porosity and high porosity section, and the packaging and delivery system allows the prosthesis to be delivered such that the position of the low porosity and high porosity sections of the prosthesis can vary.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: July 4, 2023
    Assignee: MicroVention, Inc.
    Inventors: Ronak Dholakia, Hussain S. Rangwala, William R. Patterson
  • Patent number: 11678886
    Abstract: Methods and devices for treating a cerebral aneurysm utilize a device that includes a self-expanding resilient permeable shell made from elongate resilient filaments. At least some of the filaments have a distal region that extends beyond the distal end of the permeable shell and form an extension having a generally circular shape when expanded. The permeable shell has a radially constrained elongated state configured for delivery within a microcatheter and has an expanded state with a globular, axially shortened configuration. The permeable shell has a plurality of openings formed between the braided filaments. The distal regions of the plurality of filaments that form the extension may be braided, partially braided, or unraveled. Once deployed within the cerebral aneurysm, the extension may be positioned near a dome of the cerebral aneurysm.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: June 20, 2023
    Assignee: MICROVENTION, INC.
    Inventors: Todd Hewitt, Brian E. Merritt, William R. Patterson, James M. Thompson, Claudio Plaza, Hung P. Tran
  • Publication number: 20230149022
    Abstract: Devices and methods for treatment of a patient’s vasculature are described. Embodiments may include a permeable implant having a radially constrained state configured for delivery within a catheter lumen, an expanded state, and a plurality of elongate filaments that are woven together. The permeable implant may include a stiffer proximal portion that is configured to sit at the neck of an aneurysm. The stiffer proximal portion may include coils, stiffening elements, or reinforcement elements disposed about or associated with the filaments or woven together with the filaments.
    Type: Application
    Filed: January 4, 2023
    Publication date: May 18, 2023
    Inventors: Hussain S. Rangwala, William R. Patterson, Todd Hewitt
  • Patent number: 11559309
    Abstract: Devices and methods for treatment of a patient's vasculature are described. Embodiments may include a permeable implant having a radially constrained state configured for delivery within a catheter lumen, an expanded state, and a plurality of elongate filaments that are woven together. The permeable implant may include a stiffer proximal portion that is configured to sit at the neck of an aneurysm. The stiffer proximal portion may include coils, stiffening elements, or reinforcement elements disposed about or associated with the filaments or woven together with the filaments.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: January 24, 2023
    Assignee: SEQUENT MEDICAL, INC.
    Inventors: Hussain S. Rangwala, William R. Patterson, Todd Hewitt
  • Publication number: 20220378435
    Abstract: Devices and methods for treatment of a patient's vasculature are described. Embodiments may include a permeable implant having a radially constrained state configured for delivery within a catheter lumen, an expanded state, and a plurality of elongate filaments that are woven together. The implant may include first and second permeable shells. The first permeable shell having a proximal end with a concave or recessed section and a second permeable shell having a convex section that mates with the concave or recessed section. The implant also includes a flexible, articulating joint between the first and second permeable shells.
    Type: Application
    Filed: March 3, 2022
    Publication date: December 1, 2022
    Inventors: Ronak Dholakia, Hussain S. Rangwala, William R. Patterson
  • Publication number: 20220257258
    Abstract: Devices and methods for treatment of a patient's vasculature are described. Embodiments may include a permeable implant such as a permeable shell or mesh having a radially constrained state configured for delivery within a catheter lumen, an expanded state, and a plurality of elongate filaments that are woven together. The permeable implant may include a stiffer proximal portion that is configured to sit at the neck of an aneurysm. The stiffer proximal portion may include additional mesh layers on either the inside or the outside of a first permeable shell. The distal portion of the device may be softer and deformable.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 18, 2022
    Inventors: Todd Hewitt, Parker Milhous, Joseph Emery, Hung Tran, John Vu, Hussain S. Rangwala, William R. Patterson
  • Patent number: 11317921
    Abstract: Devices and methods for treatment of a patient's vasculature are described. Embodiments may include a permeable implant such as a permeable shell or mesh having a radially constrained state configured for delivery within a catheter lumen, an expanded state, and a plurality of elongate filaments that are woven together. The permeable implant may include a stiffer proximal portion that is configured to sit at the neck of an aneurysm. The stiffer proximal portion may include additional mesh layers on either the inside or the outside of a first permeable shell. The distal portion of the device may be softer and deformable.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: May 3, 2022
    Assignee: SEQUENT MEDICAL, INC.
    Inventors: Todd Hewitt, Parker Milhous, Joseph Emery, Hung Tran, John Vu, Hussain S. Rangwala, William R. Patterson
  • Patent number: 11291453
    Abstract: Devices and methods for treatment of a patient's vasculature are described. Embodiments may include a permeable implant having a radially constrained state configured for delivery within a catheter lumen, an expanded state, and a plurality of elongate filaments that are woven together. The implant may include first and second permeable shells. The first permeable shell having a proximal end with a concave or recessed section and a second permeable shell having a convex section that mates with the concave or recessed section. The implant also includes a flexible, articulating joint between the first and second permeable shells.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: April 5, 2022
    Assignee: SEQUENT MEDICAL, INC.
    Inventors: Ronak Dholakia, Hussain S. Rangwala, William R. Patterson
  • Publication number: 20220041950
    Abstract: Described herein are durable coatings, i.e. for medical devices, and methods of forming the coatings.
    Type: Application
    Filed: August 6, 2021
    Publication date: February 10, 2022
    Inventors: Hussain Rangwala, William R. Patterson, Aaron Baldwin
  • Publication number: 20210346032
    Abstract: Devices and methods for treatment of a patient's vasculature are described. Embodiments may include a permeable implant connected to an expandable stent through a plurality of wires. The permeable shell is configured for placement in an aneurysm and the expandable stent is configured for placement in a parent vessel proximal, near, or adjacent the aneurysm.
    Type: Application
    Filed: March 11, 2021
    Publication date: November 11, 2021
    Inventors: William R. Patterson, Daniel Hoit, Hussain S. Rangwala, Todd Hewitt, Parker Milhous, Hung Tran
  • Publication number: 20210282785
    Abstract: Devices and methods for treatment of a patient's vasculature are described. Embodiments may include a device that includes a plurality of permeable shells connected by a plurality of coils, each coil connecting at least one pair of permeable shells. The plurality of coils may include an inert hydrogel core that absorbs water.
    Type: Application
    Filed: March 10, 2021
    Publication date: September 16, 2021
    Inventors: Ronak Dholakia, Hussain S. Rangwala, William R. Patterson
  • Publication number: 20210275184
    Abstract: Devices and methods for treatment of a patient's vasculature are described. The device includes a self-expanding resilient permeable shell having a radially constrained state and an expanded state with a globular, axially shortened configuration. The permeable shell may be a single layer of braided elongate filaments having first and second ends that are secured at the proximal end of the permeable shell. The devices may also include permeable shells made of woven braided mesh having a variable mesh density, i.e., the average size of pores in one region are a different than the average size of pores in another region. Methods of using the device to treat a cerebral aneurysm are also described. Methods of forming a tubular braid are also described. Methods of forming a tubular braid with variable braid densities are described. Methods of forming a tubular braid using a castellated mandrel are also described.
    Type: Application
    Filed: February 16, 2021
    Publication date: September 9, 2021
    Inventors: Todd Hewitt, Brian Merritt, William R. Patterson, James M. Thompson, Claudio Plaza, Hung P. Tran, Richard L. Quick