Patents by Inventor Shengmin Mei

Shengmin Mei 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: 20230380973
    Abstract: Devices and methods for removing a valve clip which is pre-positioned on a heart leaflet, the valve clip including a delivery catheter having a distal end portion configured to be positioned near a heart valve; a grasping tool deployable from the distal end portion of the delivery catheter, the grasping tool configured to grasp and manipulate a valve clip from an implanted condition to an elongated condition, wherein the valve clip in the elongated condition has an elongated width less than an implanted width of the valve clip in the implanted condition; and a removal tool extendable relative to the distal end portion of the delivery catheter, the removal tool configured to at least partially surround the valve clip in the elongated condition and to remove the valve clip from the heart valve leaflet.
    Type: Application
    Filed: August 11, 2023
    Publication date: November 30, 2023
    Applicant: EVALVE, INC.
    Inventors: Eduardo De Marchena, M.D., Chad Abunassar, Shengmin Mei
  • Patent number: 11724068
    Abstract: The present disclosure describes devices, systems, and methods for intravascularly delivering an implantable device to a targeted anatomical site such as the mitral annulus. A delivery system includes a delivery member coupled to a handle assembly and extending distally from the handle assembly. A delivery catheter is concentrically positioned within an outer member and configured to advance the intravascular device relative to the outer member. The delivery catheter includes a distal can structure configured to house at least a portion of the intravascular device in a compressed, pre-deployed position.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: August 15, 2023
    Assignee: CEPHEA VALVE TECHNOLOGIES, INC.
    Inventors: Randolf von Oepen, Francisco Valencia, Sean A. McNiven, Timothy C. Reynolds, Rommel Cababaro Lumauig, Shengmin Mei, Hugo A. Cobar, Daniel Tucker Wallace
  • Publication number: 20220079754
    Abstract: Devices, systems and methods for removal of a mitral valve clip and subsequent delivery of a mitral valve implantation in a mitral valve replacement procedure. A modular port accessory device having a distal connector configured to be compatible with corresponding connectors on an existing therapeutic device, wherein the port accessory can be selectively attached to a proximal end portion connector of a proximal end portion of a catheter assembly of an existing therapeutic device. The catheter assembly is introduced to a target site within the patient's anatomy, and remains in place throughout a multistep therapeutic procedure for use with other therapeutic devices, all while allowing hemostasis to be controlled during use ad interchange of multiple therapeutic devices.
    Type: Application
    Filed: September 15, 2021
    Publication date: March 17, 2022
    Inventors: Shengmin Mei, Preston Huddleston, Laura M. Kalvass, Lauren Troxler Harvey, Lua T. Nguyen, Tracee Elizabeth Johnson Eidenschink, Theodore Paul Dale, Kevin P. Griffin, Michael J. Urick, Roisin H. Verbael, Richard Thomas Childs
  • Publication number: 20210346029
    Abstract: A system configured to detach an interventional implant from a cardiac valve includes a guide catheter and a capture mechanism routable through the guide catheter. The capture mechanism comprises a capture hypotube with a container portion/space configured to receive an interventional implant connected to cardiac valve tissue. The capture mechanism also includes a cutting arm axially moveable relative to the capture hypotube. The capture hypotube and the cutting arm each include cutting elements that are brought together upon actuation of the cutting arm to thereby cut the cardiac valve tissue surrounding the interventional implant to free the implant from the cardiac valve.
    Type: Application
    Filed: May 3, 2021
    Publication date: November 11, 2021
    Inventors: Shengmin Mei, Gabriel R. Gonzales, Alexander Chu, Richard Thomas Childs
  • Publication number: 20200155804
    Abstract: The present disclosure describes devices, systems, and methods for intravascularly delivering an implantable device to a targeted anatomical site such as the mitral annulus. A delivery system includes a delivery member coupled to a handle assembly and extending distally from the handle assembly. A delivery catheter is concentrically positioned within an outer member and configured to advance the intravascular device relative to the outer member. The delivery catheter includes a distal can structure configured to house at least a portion of the intravascular device in a compressed, pre-deployed position.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 21, 2020
    Inventors: Randolf von Oepen, Francisco Valencia, Sean A. McNiven, Timothy C. Reynolds, Rommel Cababaro Lumauig, Shengmin Mei, Hugo A. Cobar, Daniel Tucker Wallace
  • Patent number: 10426473
    Abstract: A device for connecting together two opposing leaflets of a valve in a patient's heart, comprising: a first clip having a generally U-shape, comprising a first prong and a second prong, and a first bridge connecting the first prong to the second prong; a second clip having a generally U-shape, comprising a third prong and a fourth prong, and a second bridge connecting the third prong to the fourth prong; a third clip having a generally U-shape, comprising a fifth prong and a sixth prong, and a third bridge connecting the fifth prong to the sixth prong, wherein the third prong has a first elongate axis and the fifth prong has a second elongate axis and the third prong and the fifth prong are positioned to extend adjacent to and parallel with the first prong, and are configured to rotate about the first elongate axis and the fifth elongate axis respectively.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: October 1, 2019
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Chad Abunassar, Koji J. Kizuka, Casey M. Barbarino, Brandon W. Chu, Travis R. Marsot, Shengmin Mei
  • Publication number: 20190117223
    Abstract: A device for connecting together two opposing leaflets of a valve in a patient's heart, comprising: a first clip having a generally U-shape, comprising a first prong and a second prong, and a first bridge connecting the first prong to the second prong; a second clip having a generally U-shape, comprising a third prong and a fourth prong, and a second bridge connecting the third prong to the fourth prong; a third clip having a generally U-shape, comprising a fifth prong and a sixth prong, and a third bridge connecting the fifth prong to the sixth prong, wherein the third prong has a first elongate axis and the fifth prong has a second elongate axis and the third prong and the fifth prong are positioned to extend adjacent to and parallel with the first prong, and are configured to rotate about the first elongate axis and the fifth elongate axis respectively.
    Type: Application
    Filed: October 19, 2017
    Publication date: April 25, 2019
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Chad Abunassar, Koji J. Kizuka, Casey M. Barbarino, Brandon W. Chu, Travis R. Marsot, Shengmin Mei