ROD FOR SPINAL FIXATION IMPLANT
    1.
    发明公开

    公开(公告)号:US20240341813A1

    公开(公告)日:2024-10-17

    申请号:US18681311

    申请日:2023-02-16

    发明人: Kazumi Akatsu

    IPC分类号: A61B17/70

    CPC分类号: A61B17/7005

    摘要: A rod for spinal fixation implant having flexibility to reliably support movement of the spine while following movement of the spine with simple configuration. A rod for spinal fixation implant with a screw portion fixed to a vertebral bone and a coupling portion configured to couple the screw portion to the rod, and fixes plural vertebral bones to each other via the rod, the rod for spinal fixation implant includes a layered winding portion 10 configured by layering four layers, in radial direction, of spiral bodies obtained by winding four wires in a spiral shape with space portion inside and gap portion being opened between respective wires in an axial direction; and a rod-shaped core material 3 disposed in the space portion, in which the layered winding portions 10 of four layers are disposed such that spiral directions of the spiral bodies of adjacent layers are opposite to each other.

    BIO-FLEXIBLE SPINAL FIXATION APPARATUS FOR PREVENTING FATIGUE FRACTURE

    公开(公告)号:US20240260999A1

    公开(公告)日:2024-08-08

    申请号:US18329250

    申请日:2023-06-05

    申请人: Kyung-Woo PARK

    发明人: Kyung-Woo PARK

    IPC分类号: A61B17/70

    CPC分类号: A61B17/7028 A61B17/7005

    摘要: The present invention relates to a bio-flexible spinal fixation apparatus capable of realizing motions similar to general body mechanical motions during flexion and extension motions after spinal fixation surgery by configuring a center of a coil part of a rod to have a eccentricity at a certain distance from a center line of a straight part and a specific inclination, and conveniently performing an operation of setting a fixing position of the rod during spinal fixation surgery by machining the straight part section of the rod into a flat surface. The present invention includes a screw pike that includes a head part and a screw; a rod that has a straight part and a coil part wound to be inclined by a predetermined angle with an eccentricity from a center of the straight part; and a set screw.

    System and method for dynamic vertebral stabilization

    公开(公告)号:US10004539B2

    公开(公告)日:2018-06-26

    申请号:US15258468

    申请日:2016-09-07

    IPC分类号: A61B17/70

    摘要: An intervertebral stabilization device and method is disclosed. The device preferably includes a planar spring enclosed within a housing. The housing is joined to an articulation component at either end, and the articulation components have couplings connectable to anchoring components which are securable to adjacent vertebrae. The planar spring can flex and retract providing relative motion between the adjacent vertebrae. The articulation components are ball and socket joints which allow the entire assembly to flexibly follow the curvature of the spine. A fusion rod with articulation components and couplings at either end may be substituted for the spring device. The couplings enable interchangeability between a fusion rod assembly and spring assembly, so that dynamic stabilization can occur at one vertebral level and fusion at the adjacent vertebral level. An overhung spring assembly with a sideways displaced housing which allows for a shorter pedicle to pedicle displacement is also disclosed.

    Disc and motion preserving implant system

    公开(公告)号:US09980752B2

    公开(公告)日:2018-05-29

    申请号:US14679053

    申请日:2015-04-06

    申请人: Eric J. Smith

    发明人: Eric J. Smith

    IPC分类号: A61B17/70

    摘要: An orthopedic implant system is disclosed for use in correcting or reducing the progression of scoliosis. The orthopedic implant system can be inserted laterally or posteriorly and comprises an elongated flexible member secured to a user's spinal column via a plurality of vertebral body screws. Typically, the height of the elongated flexible member is significantly greater than the width, creating a flattened cross-sectional aspect. The vertebral body screws comprise a screw base and a screw head with a slot sized to accept an insert. Typically, the elongated flexible member is positioned within the slot via the insert, and is allowed to slide within the screw head as needed, as the user moves. However, at the apex of the user's scoliosis curve, the elongated flexible member is fixed within a vertebral body screw head.