Patents by Inventor Hongxia NAN

Hongxia NAN 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: 11395734
    Abstract: A prosthetic valve, solving the technical problem of an existing prosthetic valve, when implanted in a certain valve site, not being adaptive to the physiological anatomy condition of the heart, being difficult to mount and fix properly and being easy to become displaced, and consequently affecting the function of the valve. The prosthetic valve comprises an annular frame (2) which has a mesh structure and can radially expand to deform; a connection line (10) is provided on the frame (2); the prosthetic valve is connected and fixed to an anatomical structure of a mounting position of a human body by means of the connection line (10); the connection line (10) surrounds the outside of the frame (2) to form several connection portions which extend out along the radial direction of the frame (2); the space surrounded by the connection portions can receive the thickness of the anatomical structure.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: July 26, 2022
    Assignee: SHANGHAI JOY MEDICAL DEVICES CO., LTD.
    Inventors: Shouyan Lee, Hongxia Nan
  • Patent number: 10932909
    Abstract: A device for treating regurgitation of a tricuspid valve (4) is disclosed. The device comprises a tricuspid valve plug (21) capable of compressing and expanding and a tricuspid valve plug fixing device used for anchoring the tricuspid valve-in-plug (21) to an orifice of the tricuspid valve (4). The tricuspid valve plug (21) is provided with an inflow end (42, 52) and an opposite outflow end (47, 57), and a prosthetic valve (50, 70) capable of being opened and closed is disposed in the tricuspid valve plug (21). When the tricuspid valve (4) is dosed, the prosthetic valve (50, 70) is automatically closed, and when the tricuspid valve (4) is opened, the prosthetic valve (50, 70) is automatically opened.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: March 2, 2021
    Assignee: SHANGHAI JOY MEDICAL DEVICES CO., LTD
    Inventors: Shouyan Lee, Hongxia Nan
  • Patent number: 10932904
    Abstract: A device for treating regurgitation of a tricuspid valve (4). The device comprises a tricuspid valve plug (21) capable of compressing and expanding and a tricuspid valve plug fixing device used for anchoring the tricuspid valve plug (21) to an orifice of the tricuspid valve (4). The tricuspid valve plug (21) is provided with an inflow end (42, 52) and an opposite outflow end (47, 57), and a prosthetic valve (50, 70) capable of being opened and closed is disposed in the tricuspid valve plug (21). When the tricuspid valve (4) is closed, the prosthetic valve (50, 70) is automatically closed, and when the tricuspid valve (4) is opened, the prosthetic valve (50, 70) is automatically opened.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: March 2, 2021
    Assignee: SHANGHAI JOY MEDICAL DEVICES CO., LTD
    Inventors: Shouyan Lee, Hongxia Nan
  • Publication number: 20200069419
    Abstract: A device for treatment of valve regurgitation is described, comprising frameworks (114, 133, 141, 701, 812, 821, 911) and an anchoring unit (132). The anchoring unit (132) is connected to the frameworks (114, 133, 141, 701, 812, 821, 911); the frameworks (114, 133, 141, 701, 812, 821, 911) can be expanded and compressed and have an inflow end (421) and an opposite outflow end (422); valve leaflets (142, 621, 721, 751) capable of opening and closing in blood flow are provided inside the frameworks (114, 133, 141, 701, 812, 821, 911); the anchoring unit (132) can keep the frameworks (114, 133, 141, 701, 812, 821, 911) in an expanded state at the orifice position of a natural heart valve. The device for treatment of valve regurgitation and an implantation method therefor can effectively treat valve regurgitation.
    Type: Application
    Filed: May 12, 2017
    Publication date: March 5, 2020
    Applicant: Shanghai Joy Medical Devices Co., Ltd.
    Inventors: Shouyan LEE, Hongxia NAN
  • Publication number: 20200000592
    Abstract: A device for treating regurgitation of a tricuspid valve (4) is disclosed. The device comprises a tricuspid valve plug (21) capable of compressing and expanding and a tricuspid valve plug fixing device used for anchoring the tricuspid valve-in-plug (21) to an orifice of the tricuspid valve (4). The tricuspid valve plug (21) is provided with an inflow end (42, 52) and an opposite outflow end (47, 57), and a prosthetic valve (50, 70) capable of being opened and closed is disposed in the tricuspid valve plug (21). When the tricuspid valve (4) is dosed, the prosthetic valve (50, 70) is automatically closed, and when the tricuspid valve (4) is opened, the prosthetic valve (50, 70) is automatically opened.
    Type: Application
    Filed: February 7, 2017
    Publication date: January 2, 2020
    Applicant: Shanghai Joy Medical Devices Co., Ltd.
    Inventors: Shouyan LEE, Hongxia NAN
  • Publication number: 20190388221
    Abstract: A device for treating regurgitation of a tricuspid valve (4). The device comprises a tricuspid valve plug (21) capable of compressing and expanding and a tricuspid valve plug fixing device used for anchoring the tricuspid valve plug (21) to an orifice of the tricuspid valve (4). The tricuspid valve plug (21) is provided with an inflow end (42, 52) and an opposite outflow end (47, 57), and a prosthetic valve (50, 70) capable of being opened and closed is disposed in the tricuspid valve plug (21). When the tricuspid valve (4) is closed, the prosthetic valve (50, 70) is automatically closed, and when the tricuspid valve (4) is opened, the prosthetic valve (50, 70) is automatically opened.
    Type: Application
    Filed: April 7, 2017
    Publication date: December 26, 2019
    Applicant: Shanghai Joy Medical Devices Co., Ltd.
    Inventors: Shouyan LEE, Hongxia NAN
  • Publication number: 20190209304
    Abstract: A prosthetic valve, solving the technical problem of an existing prosthetic valve, when implanted in a certain valve site, not being adaptive to the physiological anatomy condition of the heart, being difficult to mount and fix properly and being easy to become displaced, and consequently affecting the function of the valve. The prosthetic valve comprises an annular frame (2) which has a mesh structure and can radially expand to deform; a connection line (10) is provided on the frame (2); the prosthetic valve is connected and fixed to an anatomical structure of a mounting position of a human body by means of the connection line (10); the connection line (10) surrounds the outside of the frame (2) to form several connection portions which extend out along the radial direction of the frame (2); the space surrounded by the connection portions can receive the thickness of the anatomical structure.
    Type: Application
    Filed: April 7, 2017
    Publication date: July 11, 2019
    Applicant: Shanghai Joy Medical Devices Co., Ltd.
    Inventors: Shouyan LEE, Hongxia NAN