Intervertebral cage with porosity gradient

    公开(公告)号:US10940019B2

    公开(公告)日:2021-03-09

    申请号:US15920898

    申请日:2018-03-14

    IPC分类号: A61F2/44 A61F2/30

    摘要: An intervertebral cage with an outer frame, an open inner core region and a porosity gradient within the outer frame is provided. The outer frame includes a posterior wall, an anterior wall, a pair of side walls extending between the posterior wall and the anterior wall and the porosity gradient may comprise at least one of: a decreasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; an increasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; a decreasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls; and an increasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls.

    Intervertebral cage with porosity gradient

    公开(公告)号:US11596527B2

    公开(公告)日:2023-03-07

    申请号:US17174147

    申请日:2021-02-11

    IPC分类号: A61F2/44 A61F2/30

    摘要: An intervertebral cage with an outer frame, an open inner core region and a porosity gradient within the outer frame is provided. The outer frame includes a posterior wall, an anterior wall, a pair of side walls extending between the posterior wall and the anterior wall and the porosity gradient may comprise at least one of: a decreasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; an increasing average pore diameter in a direction from an outer surface to an inner surface of at least one of the pair of side walls; a decreasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls; and an increasing average pore diameter in a direction from an upper surface to a lower surface of at least one of the side walls.

    Instrument configured to generate an impact and retracting load on an inserter

    公开(公告)号:US11583418B2

    公开(公告)日:2023-02-21

    申请号:US16904885

    申请日:2020-06-18

    IPC分类号: A61F2/46

    摘要: An instrument and inserter kit for providing a load to insert or retract an implant 2000 is provided. The instrument includes a cover having an engagement end opposite a distal end. The engagement end is configured to mount to an engagement feature of a handle of an inserter. The cover is an elongated member having a C-shaped profile having a dimension configured to receive a sliding member. The sliding member is seated over the cover and is weighted. The sliding member is configured to slide between a first radial lip and a second radial lip so as to provide an impacting force or retracting force on the instrument.

    INSTRUMENT CONFIGURED TO GENERATE AN IMPACT AND RETRACTING LOAD ON AN INSERTER

    公开(公告)号:US20180140438A1

    公开(公告)日:2018-05-24

    申请号:US15360054

    申请日:2016-11-23

    IPC分类号: A61F2/46

    摘要: An instrument and inserter kit for providing a load to insert or retract an implant 2000 is provided. The instrument includes a cover having an engagement end opposite a distal end. The engagement end is configured to mount to an engagement feature of a handle of an inserter. The cover is an elongated member having a C-shaped profile having a dimension configured to receive a sliding member. The sliding member is seated over the cover and is weighted. The sliding member is configured to slide between a first radial lip and a second radial lip so as to provide an impacting force or retracting force on the instrument.

    VERTEBRAL BODY REPLACEMENT AND INSERTION DEVICE

    公开(公告)号:US20240164907A1

    公开(公告)日:2024-05-23

    申请号:US18513158

    申请日:2023-11-17

    IPC分类号: A61F2/44 A61F2/46

    摘要: Disclosed herein are expandable interbodies with modular endplates. An expandable interbody has an outer column, an inner column threadedly coupled and translatable relative to the outer column along the longitudinal axis, and an expansion ring to adjust a body length of the expandable interbody. The expansion ring has a plurality of teeth, and the outer column has at least one arm for engaging a tooth of the plurality of teeth to lock the expansion ring. The inner column and/or outer column can include a connector for connection to a modular endplate that has a substantially hollow core. The modular endplate includes a plate with a set screw entrapped therein. The modular endplate has an aperture to receive the connector of the inner and/or outer column.

    Instrument configured to generate an impact and retracting load on an inserter

    公开(公告)号:US10695194B2

    公开(公告)日:2020-06-30

    申请号:US15360054

    申请日:2016-11-23

    IPC分类号: A61F2/46

    摘要: An instrument and inserter kit for providing a load to insert or retract an implant 2000 is provided. The instrument includes a cover having an engagement end opposite a distal end. The engagement end is configured to mount to an engagement feature of a handle of an inserter. The cover is an elongated member having a C-shaped profile having a dimension configured to receive a sliding member. The sliding member is seated over the cover and is weighted. The sliding member is configured to slide between a first radial lip and a second radial lip so as to provide an impacting force or retracting force on the instrument.

    Inserter with impact and rotational drive advancement and implant holder with implant auto release

    公开(公告)号:US11413163B2

    公开(公告)日:2022-08-16

    申请号:US16739905

    申请日:2020-01-10

    发明人: Scott Robinson

    摘要: An instrument with an implant holder disposed between a pair of tongs is provided. The implant holder may include a sleeve mechanically coupled to a distal end of a drive shaft and a pair of arms pivotably disposed within the sleeve. Movement of the sleeve in the distal direction pivots the pair of arms towards each other to grip the implant and movement of the sleeve in the proximal direction pivots the arms away from each other to automatically release the implant from the implant holder. The instrument may also include a dual mode drive shaft advancement mechanism that allows the implant holder to be advanced via an impact on the drive shaft from a tool such as a hammer or by rotation of the drive shaft.

    COMPOSITE POROUS INTERBODIES AND METHODS OF MANUFACTURE

    公开(公告)号:US20220087819A1

    公开(公告)日:2022-03-24

    申请号:US17482829

    申请日:2021-09-23

    IPC分类号: A61F2/30 A61F2/44

    摘要: A method of forming a composite titanium body for use in forming spinal implant interbodies includes selecting a metal alloy body, carving out a top portion and a bottom portion from the metal alloy body, and bonding a porous material to the carved-out top and bottom portions. Multiple pieces may be cut from the composite titanium body, each having a front face formed of the metal alloy, top and bottom portions formed of the porous material, and with a medial portion of the metal alloy extending from the front face to the back. Methods and devices for spinal interbodies having locking mechanisms to prevent bone screw back-out are also described.

    Bone fixation systems and methods
    10.
    发明授权

    公开(公告)号:US11154338B2

    公开(公告)日:2021-10-26

    申请号:US15459068

    申请日:2017-03-15

    摘要: A system and a bone fixation plate for preventing a fastener from rotating so as to prevent the fastener from backing out is provided. The system includes a plate having an opening. A retention member having an arm extending into the opening is configured to engage the head of the fastener so as to prevent the fastener from rotating after the fastener is seated within a vertebral body or implant. In one embodiment, the retention member engages a top surface of the head of the fastener. In another embodiment, the retention member engages a side wall of the head of the fastener.