CN105559867A - 脊柱解剖内固定装置及其制作方法 - Google Patents

脊柱解剖内固定装置及其制作方法 Download PDF

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CN105559867A
CN105559867A CN201610092503.5A CN201610092503A CN105559867A CN 105559867 A CN105559867 A CN 105559867A CN 201610092503 A CN201610092503 A CN 201610092503A CN 105559867 A CN105559867 A CN 105559867A
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谭军
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Shanghai East Hospital
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
    • A61B17/7064—Devices acting on, attached to, or simulating the effect of, vertebral facets; Tools therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
    • A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/808—Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00526—Methods of manufacturing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B2017/564—Methods for bone or joint treatment

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
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Abstract

一种脊柱解剖内固定装置及其制作方法，涉及医疗器械技术领域，所解决的是提高植入螺钉的准确性和固定稳定性的技术问题。该装置包括导引性固定板，及多根椎弓根螺钉；所述导引性固定板为长条形板件，导引性固定板上开设有多个与椎弓根螺钉螺纹配合的定位螺孔，各定位螺孔沿导引性固定板的长度方向依序间隔布设；所述导引性固定板在单侧边缘部形成有多个向外伸展的定位叶片，各定位叶片沿导引性固定板的长度方向依序间隔布设。本发明提供的装置及其制作方法，适用于脊柱解剖内固定。

Description

脊柱解剖内固定装置及其制作方法
技术领域
本发明涉及医疗器械技术，特别是涉及一种脊柱解剖内固定装置及其制作方法的技术。
背景技术
脊柱疾病具有多发性和复杂性，其解剖及毗邻关系复杂。传统的脊柱手术都采用钉棒固定系统进行脊柱内固定，但是钉棒固定系统在手术当中不能完全贴附在脊柱骨性结构上，其固定机制稳定性较差，受患者个体差异、椎体变异，病变侵蚀等不确定因素的影响较大。
发明内容
针对上述现有技术中存在的缺陷，本发明所要解决的技术问题是提供一种植入螺钉的准确性及固定稳定性高的脊柱解剖内固定装置及其制作方法。
为了解决上述技术问题，本发明所提供的一种脊柱解剖内固定装置，其特征在于：包括导引性固定板，及多根椎弓根螺钉；
所述导引性固定板为长条形板件，导引性固定板上开设有多个与椎弓根螺钉螺纹配合的定位螺孔，各定位螺孔沿导引性固定板的长度方向依序间隔布设；
所述导引性固定板在单侧边缘部形成有多个向外伸展的定位叶片，各定位叶片沿导引性固定板的长度方向依序间隔布设。
本发明所提供的脊柱解剖内固定装置的制作方法，其特征在于，具体步骤如下：
1）采用CT扫描方式获取脊柱的形状数据，并根据所获取的脊柱形状数据建立三维脊柱模型；
2）根据步骤1所建立的三维脊柱模型，设定导引性固定板上的定位螺孔、定位叶片的数量，及各定位螺孔的开孔位置、开孔方向，及各定位叶片的布设位置；
3）根据步骤1所建立的三维脊柱模型，通过倒模计算方法获得导引性固定板的内侧面的面形，及各定位叶片的内侧面的面形；
4）根据步骤2所设定的各定位螺孔、各定位叶片的数据，及步骤3所获得的导引性固定板内侧面面形、各定位叶片内侧面面形，在计算机中建立导引性固定板的三维模型；
5）根据步骤4所建立的导引性固定板的三维模型，利用3D打印机打印出导引性固定板的实体结构。
本发明提供的脊柱解剖内固定装置及其制作方法，利用导引性固定板准确导引椎弓根螺钉的入点和进钉方向，植入螺钉的准确性高，而且导引性固定板能完全贴附在脊柱骨性结构上，避免了传统钉棒固定系统的复杂调节结构，受患者个体差异、椎体变异，病变侵蚀等不确定因素的影响小，并且导引性固定板内侧面的面形是根据CT扫描数据制作的，导引性固定板与脊柱曲面能完全吻合，具有固定稳定性高的特点。
附图说明
图1是本发明实施例的脊柱解剖内固定装置中的导引性固定板的主视图；
图2是本发明实施例的脊柱解剖内固定装置中，导引性固定板与椎弓根螺钉的结合方式示意图。
具体实施方式
以下结合附图说明对本发明的实施例作进一步详细描述，但本实施例并不用于限制本发明，凡是采用本发明的相似结构及其相似变化，均应列入本发明的保护范围，本发明中的顿号均表示和的关系。
如图1-图2所示，本发明实施例所提供的一种脊柱解剖内固定装置，其特征在于：包括导引性固定板1，及多根椎弓根螺钉2；
所述导引性固定板1为长条形板件，导引性固定板1上开设有多个与椎弓根螺钉2螺纹配合的定位螺孔3，各定位螺孔3沿导引性固定板1的长度方向依序间隔布设；
所述导引性固定板1在单侧边缘部形成有多个向外伸展的定位叶片4，各定位叶片4沿导引性固定板1的长度方向依序间隔布设，定位叶片4的数量与定位螺孔3的数量一致，并且各定位叶片4与各定位螺孔3在导引性固定板1的宽度方向上一一正对。
本发明实施例的脊柱解剖内固定装置的制作方法，其特征在于，具体步骤如下：
1）采用CT扫描方式获取脊柱的形状数据，并根据所获取的脊柱形状数据建立三维脊柱模型；
2）根据步骤1所建立的三维脊柱模型，设定导引性固定板上的定位螺孔、定位叶片的数量，及各定位螺孔的开孔位置、开孔方向，及各定位叶片的布设位置；
3）根据步骤1所建立的三维脊柱模型，通过倒模计算方法获得导引性固定板的内侧面的面形，及各定位叶片的内侧面的面形；
导引性固定板的内侧面及定位叶片的内侧面都是指朝向脊柱一侧的面，通过倒模计算方法获得导引性固定板及各定位叶片的内侧面的面形，可以使导引性固定板的内侧面及各定位叶片的内侧面能与脊柱完全贴合；
4）根据步骤2所设定的各定位螺孔、各定位叶片的数据，及步骤3所获得的导引性固定板内侧面面形、各定位叶片内侧面面形，在计算机中建立导引性固定板的三维模型；
5）根据步骤4所建立的导引性固定板的三维模型，利用3D打印机打印出导引性固定板的实体结构。
本发明实施例适用于脊柱后路解剖内固定，导引性固定板兼具脊柱导板功能，使用时将导引性固定板的内侧面贴附在脊柱上，再将各椎弓根螺钉分别穿入各定位螺孔，利用各定位螺孔准确导引各椎弓根螺钉的入点和进钉方向，并利用各定位螺孔对各椎弓根螺钉的尾端进行锁定，通过导引性固定板与各椎弓根螺钉的配合对脊柱进行固定。

Claims (2)

1.一种脊柱解剖内固定装置，其特征在于：包括导引性固定板，及多根椎弓根螺钉；
所述导引性固定板为长条形板件，导引性固定板上开设有多个与椎弓根螺钉螺纹配合的定位螺孔，各定位螺孔沿导引性固定板的长度方向依序间隔布设；
所述导引性固定板在单侧边缘部形成有多个向外伸展的定位叶片，各定位叶片沿导引性固定板的长度方向依序间隔布设。
2.根据权利要求1所述的脊柱解剖内固定装置的制作方法，其特征在于，具体步骤如下：
1）采用CT扫描方式获取脊柱的形状数据，并根据所获取的脊柱形状数据建立三维脊柱模型；
2）根据步骤1所建立的三维脊柱模型，设定导引性固定板上的定位螺孔、定位叶片的数量，及各定位螺孔的开孔位置、开孔方向，及各定位叶片的布设位置；
3）根据步骤1所建立的三维脊柱模型，通过倒模计算方法获得导引性固定板的内侧面的面形，及各定位叶片的内侧面的面形；
4）根据步骤2所设定的各定位螺孔、各定位叶片的数据，及步骤3所获得的导引性固定板内侧面面形、各定位叶片内侧面面形，在计算机中建立导引性固定板的三维模型；
5）根据步骤4所建立的导引性固定板的三维模型，利用3D打印机打印出导引性固定板的实体结构。
CN201610092503.5A 2016-02-19 2016-02-19 脊柱解剖内固定装置及其制作方法 Expired - Fee Related CN105559867B (zh)

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5180381A (en) * 1991-09-24 1993-01-19 Aust Gilbert M Anterior lumbar/cervical bicortical compression plate
US20030040746A1 (en) * 2001-07-20 2003-02-27 Mitchell Margaret E. Spinal stabilization system and method
US6565571B1 (en) * 1998-10-19 2003-05-20 Scient'x Anterior osteosynthesis plate for lumbar vertebrae or sacral lumbar vertebra and instrument for positioning same
CN2631440Y (zh) * 2003-06-27 2004-08-11 易斌 半刚性颈椎前路固定板
CN101370438A (zh) * 2006-01-13 2009-02-18 西畔亚特股份公司 包括板和椎弓螺钉的系统及其应用
FR2929101A1 (fr) * 2008-03-31 2009-10-02 Warsaw Orthopedic Inc Dispositif et procedes de stabilisation rachidienne
CN101879087A (zh) * 2009-05-08 2010-11-10 宝楠生技股份有限公司 椎间固定器
US8690918B1 (en) * 2010-12-03 2014-04-08 Onike Technologies Spinous process fusion reduction plate for lumbar spine
CN204351916U (zh) * 2014-11-30 2015-05-27 曾彩琼 一种新型脊柱内固定装置
CN104739501A (zh) * 2015-03-31 2015-07-01 首都医科大学附属北京友谊医院 3d打印的颈椎椎弓根螺钉导向植入板及其制备方法
CN205493977U (zh) * 2016-02-19 2016-08-24 上海市东方医院 脊柱解剖内固定装置

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5180381A (en) * 1991-09-24 1993-01-19 Aust Gilbert M Anterior lumbar/cervical bicortical compression plate
US6565571B1 (en) * 1998-10-19 2003-05-20 Scient'x Anterior osteosynthesis plate for lumbar vertebrae or sacral lumbar vertebra and instrument for positioning same
US20030040746A1 (en) * 2001-07-20 2003-02-27 Mitchell Margaret E. Spinal stabilization system and method
CN2631440Y (zh) * 2003-06-27 2004-08-11 易斌 半刚性颈椎前路固定板
CN101370438A (zh) * 2006-01-13 2009-02-18 西畔亚特股份公司 包括板和椎弓螺钉的系统及其应用
FR2929101A1 (fr) * 2008-03-31 2009-10-02 Warsaw Orthopedic Inc Dispositif et procedes de stabilisation rachidienne
CN101879087A (zh) * 2009-05-08 2010-11-10 宝楠生技股份有限公司 椎间固定器
US8690918B1 (en) * 2010-12-03 2014-04-08 Onike Technologies Spinous process fusion reduction plate for lumbar spine
CN204351916U (zh) * 2014-11-30 2015-05-27 曾彩琼 一种新型脊柱内固定装置
CN104739501A (zh) * 2015-03-31 2015-07-01 首都医科大学附属北京友谊医院 3d打印的颈椎椎弓根螺钉导向植入板及其制备方法
CN205493977U (zh) * 2016-02-19 2016-08-24 上海市东方医院 脊柱解剖内固定装置

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