Patents Assigned to MicroVention, Inc.
  • Patent number: 12121238
    Abstract: An expansile member that may be used on a delivery device or may be used for occlusive purposes within the vasculature.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: October 22, 2024
    Assignee: MicroVention, Inc.
    Inventors: Hideo Morita, Greg Bak-Boychuk, Arnold Tuason, Matthew J. Fitz, George R. Greene, Jr.
  • Patent number: 12114864
    Abstract: A system for delivering an implant within a patient is disclosed. The activation of the heater coil causes the degradation, melting or reduction of a component that brings the heater coil into or out of electrical contact with another component, or causes the individual loops of the coil to contact each other, thereby resulting a notable change in resistance in the circuit supplying the heater coil with electricity. A core wire terminates prior to the distal end of the device, allowing for greater flexibility.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: October 15, 2024
    Assignee: MicroVention, Inc.
    Inventors: Heath Bowman, Jake Le, Matthew Fitz
  • Patent number: 12114863
    Abstract: An implant delivery system having an implant-pusher junction that has improved flexibility due to a shortened heater and tapered marker band. The heater capsule includes a coil having a complex shape made possible through additive manufacturing. The complex shape generates increased heat over a shorter length when compared to traditional linear coils. The marker band includes a tapered end that allows the implant to pivot relative to the pusher.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: October 15, 2024
    Assignee: MicroVention, Inc.
    Inventors: Heath Bowman, Nga Ting Wong, Diana N. Valencia
  • Patent number: 12102778
    Abstract: Implants comprising electrically-responsive hydrogel are described. Systems to provide electricity to induce response in hydrogel-containing implants are described. Methods for utilizing said system and methods for utilizing said hydrogel-containing implants are described.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: October 1, 2024
    Assignee: MicroVention, Inc.
    Inventors: Ross Tsukashima, Heath Bowman
  • Publication number: 20240316313
    Abstract: The embodiments presented herein relate to concepts designed to eliminate the gap between a catheter and guide wire that can otherwise contribute to a catheter getting stuck within the vasculature.
    Type: Application
    Filed: June 6, 2024
    Publication date: September 26, 2024
    Applicant: MicroVention, Inc.
    Inventors: Michelle Tran, Tetsu Sumida, Mayank Goyal, Joseph A. Gulachenski
  • Publication number: 20240315712
    Abstract: Aspiration thrombectomy devices and methods wherein an aspiration cycle includes a positive displacement segment to facilitate clot removal, a pump cartridge to facilitate tube management and an aspiration device for providing a vacuum surge. Disclosed herein is an aspiration thrombectomy system which relies on air or inert gas, rather than liquid, to provide both static and dynamic suction level profiles for safely and efficiently retrieving and removing from the body a thrombus. In one example embodiment, two or more pressure sources may be configured to apply two or more suction levels to an aspiration catheter. Valves may connect conduits between the pressure sources and the aspiration catheter, with the valves being selectively opened or closed to control which pressure level is applied to the catheter.
    Type: Application
    Filed: September 22, 2022
    Publication date: September 26, 2024
    Applicant: MicroVention, Inc.
    Inventors: Joseph Rye, Tao Lin, Xiang Simon Han, Sarri Alsunna, Hussain S. Rangwala, Hari Narayanan Raman
  • Patent number: 12096940
    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: Grant
    Filed: February 16, 2021
    Date of Patent: September 24, 2024
    Assignee: MICROVENTION, INC.
    Inventors: Todd Hewitt, Brian Merritt, William R. Patterson, James M. Thompson, Claudio Plaza, Hung P. Tran, Richard L. Quick
  • Patent number: 12097349
    Abstract: A delivery adapter which may be used as an interface between a syringe and a catheter hub is described.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: September 24, 2024
    Assignee: MicroVention, Inc.
    Inventors: Pete Barker, Jonathan Lam, Scott Pool, Frida San, Edgar Villanueva
  • Patent number: 12082821
    Abstract: Methods and devices for treatment of a patient's cerebral aneurysm is described. The device includes a permeable shell having a radially constrained elongated state configured for delivery within a catheter lumen, an expanded state with a longitudinally shortened configuration relative to the radially constrained state, and a plurality of elongate filaments that are woven together to form a mesh. The proximal ends of each of the plurality of filaments are gathered by a proximal hub and the distal ends of each of the plurality of filaments are gathered by a distal hub. The proximal portion of the permeable shell includes a swellable polymer. The method includes advancing the implant in a microcatheter to a region of interest in the cerebral vasculature, deploying the implant within the cerebral aneurysm, and withdrawing the microcatheter from the region of interest after deploying the implant.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: September 10, 2024
    Assignee: MICROVENTION, INC.
    Inventors: Philippe Marchand, Brian J. Cox, Robert F. Rosenbluth
  • Patent number: 12082819
    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: January 4, 2023
    Date of Patent: September 10, 2024
    Assignee: MICROVENTION, INC.
    Inventors: Hussain S. Rangwala, William R. Patterson, Todd Hewitt
  • Publication number: 20240293127
    Abstract: An embolic coil having a stretch resistant member for resisting stretching or unwinding of the embolic coil. A tubular member may be attached to a proximal end of the embolic coil. A stretch resistant member may extend through the tubular member and the embolic coil to be attached at its distal end to the embolic coil. The stretch resistant member may include an enlargement to prevent the stretch resistant member from withdrawing into the tubular member. The stretch resistant member may comprise a one-piece design comprising a tether or a two-piece design comprising a tether in combination with another component such as a filament, a braid, or an eyelet. The stretch resistant member may be wavy to allow slack. The distal end of the stretch resistant member may be attached to the embolic coil by tying a knot, melting into a tip, or the use of adhesives, welding, or soldering.
    Type: Application
    Filed: July 7, 2022
    Publication date: September 5, 2024
    Applicant: MicroVention, Inc.
    Inventors: Todd Hewitt, Karishma Desai, Parker Milhous, Tao Lin
  • Patent number: 12076260
    Abstract: Disclosed is a method, apparatus, and kit for assisting the expansion of a self-expanding stent, especially within highly curved or tortuous blood vessels. An elongated pusher having an expandable distal mesh portion can be positioned within a self-expanding stent, expanding during delivery to provide extra expansion force to the stent to ensure the stent properly expands.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: September 3, 2024
    Assignee: MicroVention, Inc.
    Inventors: Ponaka Pung, Helen Nguyen
  • Patent number: 12070220
    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: Grant
    Filed: March 10, 2021
    Date of Patent: August 27, 2024
    Assignee: MICROVENTION, INC.
    Inventors: Ronak Dholakia, Hussain S. Rangwala, William R. Patterson
  • Patent number: 12048438
    Abstract: An occlusion device formed of a microcoil having a three-dimensional relaxed state employing open looped portions interposed between closed loop portions. Planes defined by sequentially formed open looped and closed loop portions are neither coincident nor parallel to one another.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: July 30, 2024
    Assignee: MicroVention, Inc.
    Inventors: Jake Le, Heath Bowman
  • Publication number: 20240238110
    Abstract: A vascular implant may comprise at least a first layer having one or more drawn fill tube wires (DFT wires) and at least a second layer having one or more non-DFT wires. The first layer may be braided from only a single DFT wire, and the second layer may be braided from a plurality of non-DFT wire. A vascular implant may also include a connecting wire composed of a shape memory alloy and that is shape set prior to connection to one or more implant layers composed of DFT wires.
    Type: Application
    Filed: May 18, 2022
    Publication date: July 18, 2024
    Applicant: MicroVention, Inc.
    Inventors: Dieter Rutzen, Ponaka Pung, Shameem Golshan, Helen Nguyen, Oanh Nguyen, Britney Ngo, Minh Nguyen, Marcus Kraus, Nazanin Nourani
  • Patent number: 12035918
    Abstract: A system and method of delivering and detaching an implant within a body of a patient is described. A tether connects an implant with a delivery device. The delivery device includes a heater through which the tether passes. The inner lumen of the delivery system pusher may accommodate the lead wires which connect to the heater.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: July 16, 2024
    Assignee: MicroVention, Inc.
    Inventor: Heath Bowman
  • Patent number: 12029863
    Abstract: The embodiments presented herein relate to concepts designed to eliminate the gap between a catheter and guide wire that can otherwise contribute to a catheter getting stuck within the vasculature. In an example embodiment, a microcatheter with an enlarged distal section is described. The enlarged portion of the microcatheter may be located close to the inner diameter of the guide catheter in order to reduce any open space between the microcatheter and the guide catheter, and the guidewire can be placed through the microcatheter and used to guide the system. The microcatheter can include one or more marker bands to aid in aligning the microcatheter correctly relative to the guide catheter. After the guide catheter and microcatheter are tracked to the appropriate treatment site, the microcatheter can then be used to deploy various medical devices to treat a patient.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: July 9, 2024
    Assignee: MicroVention, Inc.
    Inventors: Michelle Tran, Tetsu Sumida, Mayank Goyal, Joseph A. Gulachenski
  • Patent number: 12023034
    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: Grant
    Filed: March 11, 2021
    Date of Patent: July 2, 2024
    Assignee: MICROVENTION, INC.
    Inventors: William R. Patterson, Daniel Hoit, Hussain S. Rangwala, Todd Hewitt, Parker Milhous, Hung Tran
  • Publication number: 20240197335
    Abstract: An implantable embolic device having a stretch-resistant member passing therethrough that also serves as a tether for connecting the device to a delivery system. The stretch-resistant member is attached at a proximal and distal end of the device and extends proximally to the delivery device. The proximal attachment point serves to isolate a distal, stretch resisting segment of the member from axial tension placed on a proximal, connecting section of the member. Thus, the portion of the stretch-resistant member being used to connect the embolic device to a delivery device may be placed under tension without placing tension or distorting the implant.
    Type: Application
    Filed: March 4, 2024
    Publication date: June 20, 2024
    Applicant: MicroVention, Inc.
    Inventors: Matthew J. Fitz, Cathy Lei, Joseph Gulachenski, Maricruz Castaneda, Gary Currie
  • Publication number: 20240197430
    Abstract: The present disclosure relates to medical devices including occlusion devices, clot retrieval systems, and stents. More particularly, the medical devices described herein measure characteristics for intravascular treatment sites. The medical devices may include pressure sensors and/or length sensors that may be used to determine the effectiveness of the medical devices during or after treatment. These sensors may be particularly helpful when used on an occlusion device or a clot removal device.
    Type: Application
    Filed: February 29, 2024
    Publication date: June 20, 2024
    Applicant: MicroVention, Inc.
    Inventors: Hussain Rangwala, Ronak Dholakia, Joseph Rye