Modular screw head assemblies
    11.
    发明授权

    公开(公告)号:US11857222B1

    公开(公告)日:2024-01-02

    申请号:US17842970

    申请日:2022-06-17

    IPC分类号: A61B17/70 A61B17/68

    摘要: Orthopedic fixation devices, assemblies, and methods for securing a spinal rod. The orthopedic fixation device may include a tulip head with one or more internal components configured to secure a bone fastener. The tulip head may house a breakable shear clip that has an initial solid form. When the bone fastener is loaded into the tulip head, the shear clip breaks forming a split ring that expands radially outward to accept the screw head. Then, the shear clip collapses around the screw head, thereby securing the bone fastener to the tulip head. A spinal rod may be secured in the tulip head, for example, with a locking cap.

    ADJUSTABLE, MODULAR INSTRUMENT AND METHOD FOR SPINAL MANIPULATION

    公开(公告)号:US20230329758A1

    公开(公告)日:2023-10-19

    申请号:US18337218

    申请日:2023-06-19

    发明人: Caelan Allen

    IPC分类号: A61B17/70

    摘要: A spinal manipulation instrument, system, and method may use a driving rod to move instrument arms toward or away from one another to compress or distract between selected vertebrae to which the arms are connected. Two arms may be coupled to the driving rod. A threaded collar may axially engage one of the arms, to translate that arm along the driving rod with respect to the other arm. The other arm may be at a fixed axial location or driven by another, oppositely-oriented thread. The arms may be highly adjustable to accommodate a wide range of anatomical variation between patients. Attachment members may be modular to interchangeably couple the arms across multiple platforms.

    ORTHOPEDIC BONE FASTENERS
    14.
    发明公开

    公开(公告)号:US20240285322A1

    公开(公告)日:2024-08-29

    申请号:US18175582

    申请日:2023-02-28

    IPC分类号: A61B17/84

    CPC分类号: A61B17/84 A61B17/8625

    摘要: Orthopedic bone fasteners, assemblies, and methods for spinal and trauma applications. The bone fastener may include a screw head and a shaft with an external thread helically wound around the shaft. Each thread section includes a crest, a root, and leading and following flanks connecting the crest to adjacent roots. The external thread may have a hook and latch style thread geometry. The leading and/or following flanks may define a hook, such as an undercut, configured to improve bone purchase, resist axial and lateral forces, improve pull-out strength, minimize micromotion, and/or lag bone fragments together.

    MODULAR SCREW HEAD ASSEMBLIES
    16.
    发明公开

    公开(公告)号:US20230404638A1

    公开(公告)日:2023-12-21

    申请号:US17843000

    申请日:2022-06-17

    IPC分类号: A61B17/86 A61B17/70

    摘要: Orthopedic fixation devices, assemblies, and methods for securing a spinal rod. The orthopedic fixation device may include a tulip head with one or more internal components configured to secure a bone fastener. The tulip head may house a breakable shear clip that has an initial solid form. When the bone fastener is loaded into the tulip head, the shear clip breaks forming a split ring that expands radially outward to accept the screw head. Then, the shear clip collapses around the screw head, thereby securing the bone fastener to the tulip head. A spinal rod may be secured in the tulip head, for example, with a locking cap.

    MODULAR SCREW HEAD ASSEMBLIES
    17.
    发明公开

    公开(公告)号:US20230404625A1

    公开(公告)日:2023-12-21

    申请号:US17842970

    申请日:2022-06-17

    IPC分类号: A61B17/70

    摘要: Orthopedic fixation devices, assemblies, and methods for securing a spinal rod. The orthopedic fixation device may include a tulip head with one or more internal components configured to secure a bone fastener. The tulip head may house a breakable shear clip that has an initial solid form. When the bone fastener is loaded into the tulip head, the shear clip breaks forming a split ring that expands radially outward to accept the screw head. Then, the shear clip collapses around the screw head, thereby securing the bone fastener to the tulip head. A spinal rod may be secured in the tulip head, for example, with a locking cap.

    STABILIZING BONES USING SCREWS AND RODS
    18.
    发明公开

    公开(公告)号:US20230301686A1

    公开(公告)日:2023-09-28

    申请号:US17704567

    申请日:2022-03-25

    IPC分类号: A61B17/70 A61B17/86

    摘要: An orthopedic fixation device for affixing the screw head of a polyaxial pedicle screw has a tulip, a saddle, and a ring. The tulip has an interior cavity and two opposed threaded arms and a lower ledge. The saddle is inserted into the tulip body, and has a U shaped groove for receiving a spinal fixation rod. The ring has a diameter that is smaller than the widest diameter of the screw head, and is formable into a diameter larger than the widest diameter of the screw head when the screw head is pushed into the ring. The ring has a connection portion that mates with a connection portion of the saddle. The screw head is clamped within the tulip body between the saddle and the ring when a cap is threaded between the tulip arms.