Patents Assigned to MicroVention, Inc.
  • 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
  • Patent number: 11723784
    Abstract: A stent, a stent delivery system, and a method of delivering a stent are described that allow the porosity of the stent to be changed dynamically during a delivery procedure. Unlike prior stents and procedures that are configured to deploy with a predetermined porosity, the physician can create a region of high stent porosity over certain vessel features, a low stent porosity over other vessel features, and can create these porosity changes with at least one stent or stent layer.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: August 15, 2023
    Assignee: MicroVention, Inc.
    Inventors: Hussain S. Ringwala, Ronak Dholakia, Steve Trom
  • Patent number: 11717315
    Abstract: A matter conveyance system is located within a catheter and transports thrombus from a proximal portion of the catheter to a distal end of the catheter. In one example, the matter conveyance system is a screw or helix that rotates to cause movement of the thrombus.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: August 8, 2023
    Assignee: MicroVention, Inc.
    Inventor: Heath Bowman
  • Patent number: 11712355
    Abstract: A medical implant delivery system is described. The system can be used to deliver a variety of implants including stents and/or stent grafts. The delivery system retains the implant during delivery and detaches the implant at a target location.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: August 1, 2023
    Assignee: MicroVention, Inc.
    Inventors: Ivan Sepetka, Cathy Lei
  • Patent number: 11707281
    Abstract: The present invention provides for implant device delivery apparatuses and related methods of use. The delivery systems of the present invention incorporate a stretch resistant tube that advantageously makes the implant device, such as an embolic coil, stretch resistant while a delivery system is being used to position the implant device at a desired target site.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: July 25, 2023
    Assignee: MicroVention, Inc.
    Inventors: Matthew Fitz, Joseph Gulachenski
  • Patent number: 11701490
    Abstract: Described herein is a liquid embolic delivery device designed to minimize excess embolic solvent buildup therein. The liquid embolic delivery device generally comprises an outer catheter, an inner catheter that is longitudinally moveable within the outer catheter. The inner catheter is used for an initial embolic solvent flush and to deliver liquid embolic, while the outer catheter is used to remove excess solvent.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: July 18, 2023
    Assignee: MicroVention, Inc.
    Inventor: Frida San
  • Patent number: 11696843
    Abstract: A stent with varying porosity is described. The stent can be comprised of multiple stents attached together. A braided stent may have selected regions of increased thickness. The stent may be comprised of wires that are welded together at their ends in order to minimize vessel trauma. The stent may comprise a helically wound radiopaque wire wound through the stent.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: July 11, 2023
    Assignee: MicroVention, Inc.
    Inventors: Ponaka Pung, Helen Nguyen, Tai D. Tieu
  • 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: 11690629
    Abstract: Systems for treating an aneurysm in a cerebral vessel and methods of use are described. In one embodiment, the system includes an elongate tubular member having a lumen, an expandable stent, and a delivery device. The expandable stent has a constrained state that is configured for delivery through the lumen of the elongate tubular member, and an expanded state configured for placement within the cerebral vessel adjacent the aneurysm. The delivery device includes an elongate member and a self-expandable portion. The proximal end of the self-expandable portion is coupled to the elongate member at or near the distal end of the elongate member. The self-expandable portion of the delivery device includes a tubular mesh structure having a constrained state and an expanded state. The stent is engaged (e.g., mechanical, frictional, or intermeshing) with the self-expandable portion of the delivery device.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: July 4, 2023
    Assignee: MICROVENTION, INC.
    Inventors: Claudio Plaza, James M. Thompson, Hung P. Tran
  • 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
  • Patent number: 11678888
    Abstract: An occlusive device, occlusive device delivery system, method of using, and method of delivering an occlusive device, and method of making an occlusive device to treat various intravascular conditions is described.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: June 20, 2023
    Assignee: MicroVention, Inc.
    Inventors: Jared Shimizu, Heath Bowman, Kiet Lam, Rohini Retarekar, Maria Moreno, Rogelio Cortez
  • Publication number: 20230181191
    Abstract: A medical device is disclosed and may have a spiral shape structure that can function as a stent, such as a flow diversion stent to treat aneurysms. The medical device may have a spiral shape structure that can function as an occlusive device, for instance to occlude aneurysms. The medical device may include a shape setting structure to selectively adjust the shape of the medical device.
    Type: Application
    Filed: February 10, 2023
    Publication date: June 15, 2023
    Applicant: MicroVention, Inc.
    Inventors: Hussain S. Rangwala, Ronak Dholakia
  • Patent number: 11674050
    Abstract: Provided herein are coated substrates. Also provided herein are methods for attaching phosphonates, phosphonic acids, or derivatives thereof to an organic or an inorganic substrate (e.g., a metal oxide substrate) via phosphonate chemistry to form the coated substrates provided herein.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: June 13, 2023
    Assignee: MicroVention, Inc.
    Inventors: Aaron Baldwin, John Belletto, Garrett Ulrich
  • Patent number: 11666742
    Abstract: A delivery adapter which may be used as an interface between a syringe and a catheter hub is described.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: June 6, 2023
    Assignee: MicroVention, Inc.
    Inventors: Jonathan Lam, Scott Pool
  • Patent number: 11666341
    Abstract: An embolic coil with a secondary, delivered shape utilizing regions of varying stiffness is described. In some embodiments, these regions of varying stiffness are created by utilizing a larger primary wind loop diameter to create selective regions with lower stiffness and higher flexibility. In some embodiments, these regions of higher flexibility correspond to inflection regions on a complex coil shape to ease deliverability of the coil during therapeutic procedures.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: June 6, 2023
    Assignee: MicroVention, Inc.
    Inventors: Heath Bowman, Susanna Lin
  • Publication number: 20230118896
    Abstract: An embolic coil with a secondary, delivered shape utilizing regions of varying stiffness is described. In some embodiments, these regions of varying stiffness are created by utilizing a larger primary wind loop diameter to create selective regions with lower stiffness and higher flexibility. In some embodiments, these regions of higher flexibility correspond to inflection regions on a complex coil shape to ease deliverability of the coil during therapeutic procedures.
    Type: Application
    Filed: December 6, 2022
    Publication date: April 20, 2023
    Applicant: MicroVention, Inc.
    Inventors: Heath Bowman, Susanna Lin
  • Publication number: 20230100280
    Abstract: A stent with a common connection interface, and a method and platform used to create a stent with a common connection interface is described. A common connection interface used to connect a stent to a pusher is described.
    Type: Application
    Filed: December 6, 2022
    Publication date: March 30, 2023
    Applicant: MicroVention, Inc.
    Inventor: Ponaka Pung
  • Publication number: 20230089956
    Abstract: A delivery system used for vascular implant delivery is described. In some embodiments, the delivery system includes a user-gripped handle used to aid in retracting and advancing an implant. In some embodiments, the delivery system includes a telescoping pusher system to aid in retracting and advancing an implant.
    Type: Application
    Filed: November 28, 2022
    Publication date: March 23, 2023
    Applicant: MicroVention, Inc.
    Inventors: Vivian TRAN, Kaushik JOSHI
  • Patent number: 11590267
    Abstract: Described are medical devices including expandable tubular bodies configured to be implanted into a lumen, wherein the outer surface of the expandable tubular bodies are coupled to a polymer(s).
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: February 28, 2023
    Assignee: MicroVention, Inc.
    Inventors: Aaron Baldwin, Xinping Wu, Bryan Fiamengo, Garrett Ulrich, John Belletto
  • Patent number: 11583283
    Abstract: A medical device is disclosed and may have a spiral shape structure that can function as a stent, such as a flow diversion stent to treat aneurysms. The medical device may have a spiral shape structure that can function as an occlusive device, for instance to occlude aneurysms. The medical device may include a shape setting structure to selectively adjust the shape of the medical device.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: February 21, 2023
    Assignee: MicroVention, Inc.
    Inventors: Hussain S. Rangwala, Ronak Dholakia