Patents by Inventor Cathy Lei

Cathy Lei 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).

  • Patent number: 11918230
    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: Grant
    Filed: May 27, 2021
    Date of Patent: March 5, 2024
    Assignee: MicroVention, Inc.
    Inventors: Matthew J. Fitz, Cathy Lei, Joseph Gulachenski, Maricruz Castaneda, Gary Currie
  • 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
  • Publication number: 20230008077
    Abstract: Devices, systems, and methods used to seal a treatment area to prevent embolic agents from migrating are described. The concept has particular benefit in allowing liquid embolic to be used with a variety of intravascular therapeutic applications, including for occluding aneurysms and arteriovenous malformations in the neurovasculature.
    Type: Application
    Filed: September 15, 2022
    Publication date: January 12, 2023
    Applicant: MicroVention, Inc.
    Inventors: George R. Greene, Jr., Ivan Sepetka, Cathy Lei, Alejandro Berenstein, Monika Killer-Oberpfalzer, Heath Bowman
  • Publication number: 20220401710
    Abstract: A balloon catheter is described, having a reinforced, co-axial, dual lumen design. At least one of the lumens is formed of a multilayer, tubular element in which one of the layers functions, in part, to provide radial reinforcement to the tubular element.
    Type: Application
    Filed: August 24, 2022
    Publication date: December 22, 2022
    Applicant: MicroVention, Inc.
    Inventors: Joseph A. Gulachenski, Roland Guyon, Cathy Lei, Nelson Peralta, Tadele Haile Wolde-Meskel, Russell Corvese
  • Patent number: 11484323
    Abstract: Devices, systems, and methods used to seal a treatment area to prevent embolic agents from migrating are described. The concept has particular benefit in allowing liquid embolic to be used with a variety of intravascular therapeutic applications, including for occluding aneurysms and arteriovenous malformations in the neurovasculature.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: November 1, 2022
    Assignee: MicroVention, Inc.
    Inventors: George R. Greene, Jr., Ivan Sepetka, Cathy Lei, Alejandro Berenstein, Monika Killer-Oberpfalzer, Heath Bowman
  • Patent number: 11446474
    Abstract: A balloon catheter is described, having a reinforced, co-axial, duel lumen design. At least one of the lumens is formed of a multilayer, tubular element in which one of the layers functions, in part, to provide radial reinforcement to the tubular element.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: September 20, 2022
    Assignee: Micro Vention, Inc.
    Inventors: Joseph A. Gulachenski, Roland Guyon, Cathy Lei, Nelson Peralta, Tadele Haile Wolde-Meskel, Russell Corvese
  • Patent number: 11389169
    Abstract: A temporary aortic occlusion device is disclosed, having an expandable locator portion and an expandable occlusion portion. The expandable locator portion assists a user in determining whether the distal end of the device has been advanced within a patient's aorta, and the occlusion portion is expanded to occlude the patient's aorta, preferably below the renal arteries.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: July 19, 2022
    Assignees: Microvention, Inc., University of Virginia Patent Foundation, United States of America as Represented by the Secretary of the Navy
    Inventors: George R. Greene, Jr., Ivan Sepetka, Cathy Lei, Rupal Nguyen, Matthew J. Bradley, Stephen T. Ahlers, Carl W. Goforth, James R. Stone
  • Patent number: 11389168
    Abstract: A temporary aortic occlusion device is disclosed, having an expandable locator portion and an expandable occlusion portion. The expandable locator portion assists a user in determining whether the distal end of the device has been advanced within a patient's aorta, and the occlusion portion is expanded to occlude the patient's aorta, preferably below the renal arteries.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: July 19, 2022
    Assignees: MicroVention, Inc., University of Virginia Patent Foundation, United States of America as Represented by the Secretary of the Navy
    Inventors: George R. Greene, Jr., Ivan Sepetka, Cathy Lei, Rupal Nguyen, Matthew J. Bradley, Stephen T. Ahlers, Carl S. Goforth, James R. Stone
  • Patent number: 11202891
    Abstract: A balloon catheter is described, having a reinforced, co-axial, duel lumen design. At least one of the lumens is formed of a multilayer, tubular element in which one of the layers functions, in part, to provide radial reinforcement to the tubular element.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: December 21, 2021
    Assignee: MicroVention, Inc.
    Inventors: Joseph A. Gulachenski, Roland Guyon, Cathy Lei, Nelson Peralta, Tadele Haile Wolde-Meskel, Russell Corvese
  • Publication number: 20210322025
    Abstract: Blood vessel occlusion devices, systems and methods, in particular embodiments of devices for aortic occlusion. The device includes one or more locator portions and an occluder portion. The device is delivered via transcatheter delivery. The locator portion may be radially expanded using a handle and actuator at the proximal end of the delivery catheter. Tactile feedback from the locator portion is used to determine proper location of the occluder portion, for example within the abdominal aorta. The occluder is then radially expanded to occlude the vessel.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 21, 2021
    Applicants: MicroVention, Inc., University of Virginia Patent Foundation, United States of America as Represented by the Secretary of the Navy, Emergency Scientific LLC
    Inventors: George R. Greene, Ivan Sepetka, Cathy Lei, Rupal Nguyen, Matthew J. Bradley, Stephen T. Ahlers, Carl S. Goforth, James R. Stone, Timothy Ray Nieman, Shawn Fojtik
  • Publication number: 20210282788
    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: May 27, 2021
    Publication date: September 16, 2021
    Applicant: MicroVention, Inc.
    Inventors: Matthew J. Fitz, Cathy Lei, Joseph Gulachenski, Maricruz Castaneda, Gary Currie
  • Publication number: 20210282784
    Abstract: An occlusive device comprising a braided component which can be inserted into a blood vessel and a delivery system for delivering said occlusive device is described.
    Type: Application
    Filed: May 27, 2021
    Publication date: September 16, 2021
    Applicant: MicroVention, Inc.
    Inventors: Ivan Sepetka, Cathy Lei, Matthew Fitz
  • Publication number: 20210228214
    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: Application
    Filed: February 18, 2021
    Publication date: July 29, 2021
    Applicant: MicroVention, Inc.
    Inventors: Heath Bowman, Jared Shimizu, Ivan Sepetka, Cathy Lei, Jessica Liang, Ponaka Pung, Matthew J. Fitz
  • Patent number: 11045203
    Abstract: An occlusive device comprising a braided component which can be inserted into a blood vessel and a delivery system for delivering said occlusive device is described.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: June 29, 2021
    Assignee: MicroVention, Inc.
    Inventors: Ivan Sepetka, Cathy Lei, Matthew Fitz
  • Patent number: 11045205
    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: Grant
    Filed: August 14, 2018
    Date of Patent: June 29, 2021
    Assignee: MicroVention, Inc.
    Inventors: Matthew J. Fitz, Cathy Lei, Joseph Gulachenski, Maricruz Castaneda, Gary Currie
  • Publication number: 20210187255
    Abstract: One embodiment of the present invention discloses a balloon catheter employing a reinforced, co-axial, duel lumen design. In certain embodiments, at least one of the lumens is formed of a multilayer, tubular element in which one of the layers functions, in part, to provide radial reinforcement to the tubular element.
    Type: Application
    Filed: March 4, 2021
    Publication date: June 24, 2021
    Applicant: MicroVention, Inc.
    Inventors: Joseph Gulachenski, Cathy Lei, Nelson Peralta, Tadele Haile Wolde-Meskel
  • Publication number: 20210137530
    Abstract: Devices, systems, and methods used to seal a treatment area to prevent embolic agents from migrating are described. The concept has particular benefit in allowing liquid embolic to be used with a variety of intravascular therapeutic applications, including for occluding aneurysms and arteriovenous malformations in the neurovasculature.
    Type: Application
    Filed: December 17, 2020
    Publication date: May 13, 2021
    Applicant: MicroVention, Inc.
    Inventors: George R. Greene, JR., Ivan Sepetka, Cathy Lei, Alejandro Berenstein, Monika Killer-Oberpfalzer
  • Patent number: 10980545
    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: February 10, 2017
    Date of Patent: April 20, 2021
    Assignee: MicroVention, Inc.
    Inventors: Heath Bowman, Jared Shimizu, Ivan Sepetka, Cathy Lei, Jessica Liang, Ponaka Pung, Matthew J. Fitz
  • Patent number: 10967156
    Abstract: One embodiment of the present invention discloses a balloon catheter employing a reinforced, co-axial, duel lumen design. In certain embodiments, at least one of the lumens is formed of a multilayer, tubular element in which one of the layers functions, in part, to provide radial reinforcement to the tubular element.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: April 6, 2021
    Assignee: MicroVention, Inc.
    Inventors: Joseph Gulachenski, Cathy Lei, Nelson Peralta, Tadele Haile Wolde-Meskel
  • Patent number: 10898203
    Abstract: Devices, systems, and methods used to seal a treatment area to prevent embolic agents from migrating are described. The concept has particular benefit in allowing liquid embolic to be used with a variety of intravascular therapeutic applications, including for occluding aneurysms and arteriovenous malformations in the neurovasculature.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: January 26, 2021
    Assignee: MicroVention, Inc.
    Inventors: George R. Greene, Jr., Ivan Sepetka, Cathy Lei, Alejandro Berenstein, Monika Killer-Oberpfalzer