Patents by Inventor Longwei Xu

Longwei Xu 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: 20220142786
    Abstract: A tibial support of an artificial knee joint, comprising a main tibial support body (100) and a tibial support platform (200), wherein the main tibial support body (100) is wing-shaped, a central axis thereof being vertical to the tibial support platform (200). A plurality of hollow screw holes is provided at the upper part of the main body (100). The tibial support platform (200) is located above the main tibial support body (100). The surface of the tibial support platform (200) is an organic polymer material layer matching a tibial liner. The hollow screw holes in the tibial support are sealed by the polymer material layer. Because a tibial support of an artificial knee joint adopts a high-biocompatibility organic polymer material, physical machining is allowed in an operation, and meanwhile, the surface corrosion of the tibial support is reduced.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 12, 2022
    Inventors: Jack Zhu, Longwei Xu
  • Patent number: 11318021
    Abstract: A total hip surface replacement implant, comprising a femur component and an acetabular cup component, wherein the femur component is in a half-spherical shell shape and is formed by polyether ether ketone (PEEK) or derivatives thereof; the shape of the acetabular cup component matches that of the femur component, and the acetabular cup component is tightly attached to an outer surface of the half-spherical shell of the femur component; the acetabular cup component is formed by ultrahigh molecular weight polyethylene; or the femur component can be formed by ultrahigh molecular weight polyethylene, and meanwhile the acetabular cup component is formed by polyether ether ketone (PEEK) or derivatives thereof.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 3, 2022
    Assignee: Jiangsu Okani Medical Technology Co., Ltd
    Inventors: Jack Zhu, Longwei Xu
  • Patent number: 10918763
    Abstract: A combined fully organic high molecular material artificial knee joint, comprising a femur condyle (2), a tibia holder (4) and a tibia liner (3), the femur condyle (2) and the tibia holder (4) being formed by polyether ether ketone (PEEK) or derivatives thereof, and the tibia liner (3) being formed by ultra-high molecular weight polyethylene (UHMWPE). The tibia holder (4) comprises a platform (6) and a stable wing positioning portion (5) vertical thereto; upper and lower ends of the tibia liner (3) are jointed with the femur condyle (2) and the platform (6) respectively; the femur condyle (2) buffers a slide surface of the tibia liner (3); and the tibia holder (4) can finely move relative to a fixed surface of the tibia liner (3), and buffering of the femur condyle (2) against the slide surface of the tibia liner (3) matches fine movement of the tibia holder (4) relative to the tibia liner (3).
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: February 16, 2021
    Assignee: JIANGSU OKANI MEDICAL TECHNOLOGY CO., LTD
    Inventors: Jack Zhu, Longwei Xu
  • Publication number: 20180125665
    Abstract: A tibial support of an artificial knee joint, comprising a main tibial support body and a tibial support platform, wherein the main tibial support body is wing-shaped, a central axis thereof being vertical to the tibial support platform. A plurality of hollow screw holes is provided at the upper part of the main body. The tibial support platform is located above the main tibial support body. The surface of the tibial support platform is an organic polymer material layer matching a tibial liner. The hollow screw holes in the tibial support are sealed by the polymer material layer. Because a tibial support of an artificial knee joint adopts a high-biocompatibility organic polymer material, physical machining is allowed in an operation, and meanwhile, the surface corrosion of the tibial support is reduced. Hollow screw holes are sealed by means of a polymer material layer, thereby inhibiting joint liquid from entering the holes, and reducing the transportation of particles.
    Type: Application
    Filed: October 28, 2015
    Publication date: May 10, 2018
    Inventors: Jack Zhu, Longwei Xu
  • Publication number: 20180028718
    Abstract: A combined fully organic high molecular material artificial knee joint, comprising a femur condyle (2), a tibia holder (4) and a tibia liner (3), the femur condyle (2) and the tibia holder (4) being formed by polyether ether ketone (PEEK) or derivatives thereof, and the tibia liner (3) being formed by ultra-high molecular weight polyethylene (UHMWPE). The tibia holder (4) comprises a platform (6) and a stable wing positioning portion (5) vertical thereto; upper and lower ends of the tibia liner (3) are jointed with the femur condyle (2) and the platform (6) respectively; the femur condyle (2) buffers a slide surface of the tibia liner (3); and the tibia holder (4) can finely move relative to a fixed surface of the tibia liner (3), and buffering of the femur condyle (2) against the slide surface of the tibia liner (3) matches fine movement of the tibia holder (4) relative to the tibia liner (3).
    Type: Application
    Filed: September 25, 2015
    Publication date: February 1, 2018
    Applicant: JIANGSU OKANI MEDICAL TECHNOLOGY CO., LTD
    Inventors: Jack Zhu, Longwei Xu
  • Publication number: 20180028321
    Abstract: A total hip surface replacement implant, comprising a femur component and an acetabular cup component, wherein the femur component is in a half-spherical shell shape and is formed by polyether ether ketone (PEEK) or derivatives thereof; the shape of the acetabular cup component matches that of the femur component, and the acetabular cup component is tightly attached to an outer surface of the half-spherical shell of the femur component; the acetabular cup component is formed by ultrahigh molecular weight polyethylene; or the femur component can be formed by ultrahigh molecular weight polyethylene, and meanwhile the acetabular cup component is formed by polyether ether ketone (PEEK) or derivatives thereof.
    Type: Application
    Filed: September 25, 2015
    Publication date: February 1, 2018
    Applicant: JIANGSU OKANI MEDICAL TECHNOLOGY CO., LTD
    Inventors: Jack Zhu, Longwei Xu