CN209186905U - 头部偏置骨锚固件 - Google Patents

头部偏置骨锚固件 Download PDF

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CN209186905U
CN209186905U CN201821252453.3U CN201821252453U CN209186905U CN 209186905 U CN209186905 U CN 209186905U CN 201821252453 U CN201821252453 U CN 201821252453U CN 209186905 U CN209186905 U CN 209186905U
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head
handle
bone anchor
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shank
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托马斯·斯维尼
唐·堆利
洪·昆温
约翰·库津斯基
麦克·波伊尔
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Shanghai sinang import and Export Co., Ltd
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Huayi Intelligent Medical Device (ningbo) Co Ltd
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    • 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
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
    • A61B17/7037—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other wherein pivoting is blocked when the rod is clamped
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    • A61B17/7091—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for applying, tightening or removing longitudinal element-to-bone anchor locking elements, e.g. caps, set screws, nuts or wedges
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    • A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
    • A—HUMAN NECESSITIES
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    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
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    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
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    • A61B17/8605—Heads, i.e. proximal ends projecting from bone
    • A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
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    • A61B17/86—Pins or screws or threaded wires; nuts therefor
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    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B2017/8655—Pins or screws or threaded wires; nuts therefor with special features for locking in the bone

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Abstract

本实用新型提供了一种头部偏置骨锚固件，包含钉体(100)，所述钉体(100)包含伸长柄部(101)与结合头部(102)，伸长柄部(101)与结合头部(102)紧固连接或一体成型，所述结合头部(102)从伸长柄部(101)的轴线径向偏移；伸长柄部(101)包含依次连接的柄尖部(111)、柄身部(112)、柄尾部(113)，柄尖部(111)和/或柄身部(112)上设置有加固突起，所述加固突起包含以下任一种或任多种结构：螺纹、倒刺、翅片、环形凸棱、弧形凸棱、直线凸棱、凸点；柄尾部(113)和/或结合头部(102)上设置有加紧结构。本实用新型能够调节球形头部相对于伸长柄部的位置，并因此改变多轴接收构件(例如郁金香形件)相对于脊柱融合构造的位置。

Description

头部偏置骨锚固件
技术领域
本实用新型涉及医疗器械领域，具体地，涉及一种头部偏置骨锚固件，特别是一种适用于机器人微创脊柱手术的带偏置头部的骨锚螺钉。
背景技术
多轴椎弓根螺钉通常用于腰椎融合手术。这种螺钉被设计成可在和骨锚定之前或之后容纳其它的诸如稳定杆在内的器械或植入物。螺钉的定位和对准决定了可附加器械的位置和方向。在稳定脊柱的手术中，多个椎弓根螺钉被安置到椎骨上，并且一个或多个杆体在紧固件之间延伸，用以固定脊柱的某一部分。
由于椎弓根螺钉通常用于腰椎融合手术，因此螺钉植入的精确度至关重要。因此，机器人有时被用于辅助安置和固定这些螺钉。
典型的多轴椎弓根螺钉具有与郁金香轴向对齐的骨锚螺钉。但在许多情况下，多轴骨锚固件中的杆开口部不能直接安置在脊柱融合构造中的固定杆下方。
实用新型内容
针对现有技术中的缺陷，本实用新型的目的是提供一种头部偏置骨锚固件。
根据本实用新型提供的头部偏置骨锚固件，包含钉体，所述钉体包含伸长柄部与结合头部，伸长柄部与结合头部紧固连接或一体成型，所述结合头部从伸长柄部的轴线径向偏移；
伸长柄部包含依次连接的柄尖部、柄身部、柄尾部，柄尖部和/或柄身部上设置有加固突起，所述加固突起包含以下任一种或任多种结构：螺纹、倒刺、翅片、环形凸棱、弧形凸棱、直线凸棱、凸点；
柄尾部和/或结合头部上设置有加紧结构。
优选地，所述加紧结构包含加紧凸起或加紧凹槽。
优选地，所述伸长柄部中设置有流体通道；流体通道沿伸长柄部的轴向和/或径向贯穿伸长柄部的外端面；
流体通道与加紧凹槽相互连通；或者，
柄尾部上设置有灌注开孔，流体通道与灌注开孔连通。
优选地，所述柄尖部上设置有第一缺部，第一缺部与灌注开孔连通或不连通。
优选地，所述结合头部形状为球形或椭球形。
优选地，还包含接收构件，接收构件上设置有头部接收槽，所述结合头部安装在头部接收槽中。
优选地，所述接收构件上还设置有第一凹槽，所述第一凹槽中滑动安装有第一锁定构件；
结合头部能够到达第一凹槽中并与第一锁定构件接触。
优选地，所述接收构件上还设置有杆体接收槽，杆体接收槽中安装有固定杆。
优选地，所述接收构件上还设置有第二凹槽，所述第二凹槽中滑动安装有第二锁定构件；
所述第二锁定构件滑入第二凹槽中能够引起杆体接收槽形状的变化。
优选地，所述结合头部、柄身部分别分布在：
--柄尾部沿长度方向的两端；
--柄尾部沿厚度方向的两端；
或者，所述结构头部包含座体，所述座体连接在柄尾部的径向端面上。
与现有技术相比，本实用新型具有如下的有益效果：
1、本实用新型能够调节球形头部相对于伸长柄部的位置，并因此改变多轴接收构件(例如郁金香形件)相对于脊柱融合构造的位置。
2、本实用新型中偏置头部设计允许旋转螺钉杆以使偏置头部和郁金香形件与固定杆对准而不使用诸如横向偏置连接器等的附加硬件。
3、本实用新型能够在将钉体打入到椎体后，再进行接收构件与杆体的安装，便于实际的手术操作。
4、流体通道的设置，为骨水泥的注入提供了通道，进一步提高本实用新型与目标椎体的结合强度。
附图说明
通过阅读参照以下附图对非限制性实施例所作的详细描述，本实用新型的其它特征、目的和优点将会变得更明显：
图1为本实用新型中头部偏置钉体结构示意图；
图2为钉体结构角度调整原理图；
图3为变化例中伸长柄部与结合头部连接处局部详图；
图4为本实用新型中钉体、接收构件以及固定杆连接示意图。
图中示出：
具体实施方式
下面结合具体实施例对本实用新型进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本实用新型，但不以任何形式限制本实用新型。应当指出的是，对本领域的普通技术人员来说，在不脱离本实用新型构思的前提下，还可以做出若干变形和改进。这些都属于本实用新型的保护范围。
在本实用新型的描述中，需要理解的是，术语“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。
如图1所示，本实用新型提供的头部偏置骨锚固件，包含钉体100，所述钉体100 包含伸长柄部101与结合头部102，伸长柄部101与结合头部102紧固连接或一体成型，所述结合头部102从伸长柄部101的轴线径向偏移。伸长柄部101包含依次连接的柄尖部111、柄身部112、柄尾部113，柄尖部111和/或柄身部112上设置有加固突起，所述加固突起包含以下任一种或任多种结构：螺纹、倒刺、翅片、环形凸棱、弧形凸棱、直线凸棱、凸点。柄尾部113和/或结合头部102上设置有加紧结构。优选地，所述结合头部102形状为球形或椭球形。优选地，所述结合头部102、柄身部112分别分布在：柄尾部113沿长度方向的两端；柄尾部113沿厚度方向的两端。或者，如图3所示，所述结构头部包含座体121，所述座体121连接在柄尾部113的径向端面上。
伸长柄部101用于与骨接合，实施例中，采用了螺纹伸长柄部101与偏置球形结合头部102。伸长柄部101具有长度LS。具有郁金香接合部的结合头部102从伸长柄部101 的轴线偏移距离RO。
优选地，所述加紧结构包含加紧凸起或加紧凹槽114。加紧结构用于使用螺丝刀等结构将伸长柄部101进行旋拧。上述的郁金香接合部属于所述加紧凹槽114的一种。实际操作中，在结合头部102上设置加紧凹槽114即可，但是还可以是在柄尾部113上设置加紧结构，方便进行旋拧。如图2所示，在其中一个俯视图中，偏置的结合头部102 示出为以角度A1旋转，导致X1和Y1发生笛卡尔位移。在第二个俯视图中，偏置的结合头部102示出为以角度A2旋转，导致X2和Y2发生笛卡尔位移。换句话说，结合头部102的位置可以通过旋转偏置的伸长柄部101来进行调节。通过三角法可以容易地计算出特定的旋转量所获得的偏置量。进而，可以移动结合头部102以更好地对准固定杆 500，该固定杆500已是部分完成的脊柱融合构造的一部分。
优选地，所述伸长柄部101中设置有流体通道；流体通道沿伸长柄部101的轴向和/或径向贯穿伸长柄部101的外端面；流体通道与加紧凹槽114相互连通；或者，柄尾部113上设置有灌注开孔，流体通道与灌注开孔连通。优选地所述柄尖部111上设置有第一缺部115，第一缺部115与灌注开孔连通或不连通。所述流体通道能够用于注入骨水泥等操作，第一缺部115则能够提高旋入效率，并提供一定的骨水泥聚集腔。
如图4所示，本实用新型提供的头部偏置骨锚固件还包含接收构件200，接收构件200上设置有头部接收槽211，所述结合头部102安装在头部接收槽211中。所述接收构件200上还设置有第一凹槽212，所述第一凹槽212中滑动安装有第一锁定构件300；结合头部102能够到达第一凹槽212中并与第一锁定构件300接触。所述接收构件200 上还设置有杆体接收槽221，杆体接收槽221中安装有固定杆500。所述接收构件200 上还设置有第二凹槽222，所述第二凹槽222中滑动安装有第二锁定构件400；所述第二锁定构件400滑入第二凹槽222中能够引起杆体接收槽221形状的变化。也就是说，通过调整第一锁定构件300或第二锁定构件400，能够实现接收构件200对结合头部102 或固定杆500的固定或解锁。
以上对本实用新型的具体实施例进行了描述。需要理解的是，本实用新型并不局限于上述特定实施方式，本领域技术人员可以在权利要求的范围内做出各种变形或修改，这并不影响本实用新型的实质内容。在不冲突的情况下，本申请的实施例和实施例中的特征可以任意相互组合。

Claims (10)

1.一种头部偏置骨锚固件，其特征在于，包含钉体(100)，所述钉体(100)包含伸长柄部(101)与结合头部(102)，伸长柄部(101)与结合头部(102)紧固连接或一体成型，所述结合头部(102)从伸长柄部(101)的轴线径向偏移；
伸长柄部(101)包含依次连接的柄尖部(111)、柄身部(112)、柄尾部(113)，柄尖部(111)和/或柄身部(112)上设置有加固突起，所述加固突起包含以下任一种或任多种结构：螺纹、倒刺、翅片、环形凸棱、弧形凸棱、直线凸棱、凸点；
柄尾部(113)和/或结合头部(102)上设置有加紧结构。
2.根据权利要求1所述的头部偏置骨锚固件，其特征在于，所述加紧结构包含加紧凸起或加紧凹槽(114)。
3.根据权利要求2所述的头部偏置骨锚固件，其特征在于，所述伸长柄部(101)中设置有流体通道；流体通道沿伸长柄部(101)的轴向和/或径向贯穿伸长柄部(101)的外端面；
流体通道与加紧凹槽(114)相互连通；或者，
柄尾部(113)上设置有灌注开孔，流体通道与灌注开孔连通。
4.根据权利要求3所述的头部偏置骨锚固件，其特征在于，所述柄尖部(111)上设置有第一缺部(115)，第一缺部(115)与灌注开孔连通或不连通。
5.根据权利要求1所述的头部偏置骨锚固件，其特征在于，所述结合头部(102)形状为球形或椭球形。
6.根据权利要求1所述的头部偏置骨锚固件，其特征在于，还包含接收构件(200)，接收构件(200)上设置有头部接收槽(211)，所述结合头部(102)安装在头部接收槽(211)中。
7.根据权利要求6所述的头部偏置骨锚固件，其特征在于，所述接收构件(200)上还设置有第一凹槽(212)，所述第一凹槽(212)中滑动安装有第一锁定构件(300)；
结合头部(102)能够到达第一凹槽(212)中并与第一锁定构件(300)接触。
8.根据权利要求6所述的头部偏置骨锚固件，其特征在于，所述接收构件(200)上还设置有杆体接收槽(221)，杆体接收槽(221)中安装有固定杆(500)。
9.根据权利要求7所述的头部偏置骨锚固件，其特征在于，所述接收构件(200)上还设置有第二凹槽(222)，所述第二凹槽(222)中滑动安装有第二锁定构件(400)；
所述第二锁定构件(400)滑入第二凹槽(222)中能够引起杆体接收槽(221)形状的变化。
10.根据权利要求1所述的头部偏置骨锚固件，其特征在于，所述结合头部(102)、柄身部(112)分别分布在：
--柄尾部(113)沿长度方向的两端；
--柄尾部(113)沿厚度方向的两端；
或者，所述结构头部包含座体(121)，所述座体(121)连接在柄尾部(113)的径向端面上。
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Publication number Priority date Publication date Assignee Title
US10595907B2 (en) * 2017-02-16 2020-03-24 Rubicon Spine Llc Polyaxial pedicle screw
EP4371511A1 (en) 2022-11-15 2024-05-22 Biedermann Technologies GmbH & Co. KG Coupling device for coupling a rod to a bone anchoring element

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6698928B2 (en) * 2001-12-21 2004-03-02 Kimberly-Clark Worldwide, Inc. Flexible packages having reusable pull-tab openers
EP1883359A2 (en) 2005-05-25 2008-02-06 AlpineSpine LLC Low profile pedicle screw and rod assembly
WO2008137933A1 (en) * 2005-05-25 2008-11-13 Alpinespine Llc Low rider pedicle screw system
KR101147452B1 (ko) * 2005-07-08 2012-05-21 비이더만 모테크 게엠베하 ＆ 코. 카게 뼈 고정 장치
US20090204155A1 (en) * 2005-12-19 2009-08-13 Felix Aschmann Polyaxial bone anchor with headless pedicle screw
DE502006004368D1 (de) * 2006-02-03 2009-09-10 Spinelab Ag Wirbelsäulenimplantat
US20080015597A1 (en) * 2006-04-28 2008-01-17 Whipple Dale E Large diameter bone anchor assembly
US8016862B2 (en) * 2006-09-27 2011-09-13 Innovasis, Inc. Spinal stabilizing system
DE602006009682D1 (de) * 2006-11-17 2009-11-19 Biedermann Motech Gmbh Knochenverankerungsvorrichtung
EP2120752A1 (en) * 2007-03-22 2009-11-25 Synthes GmbH Bone plate
US7942909B2 (en) * 2009-08-13 2011-05-17 Ortho Innovations, Llc Thread-thru polyaxial pedicle screw system
CN101754725B (zh) * 2007-07-20 2011-12-21 新特斯有限责任公司 多轴骨固定元件
US8398683B2 (en) * 2007-10-23 2013-03-19 Pioneer Surgical Technology, Inc. Rod coupling assembly and methods for bone fixation
US8603145B2 (en) * 2008-12-16 2013-12-10 Zimmer Spine, Inc. Coaxially lockable poly-axial bone fastener assemblies
ES2548580T3 (es) * 2009-02-20 2015-10-19 Biedermann Technologies Gmbh & Co. Kg Parte receptora para alojar una varilla para el acoplamiento a un elemento de anclaje óseo y dispositivo de anclaje óseo que incluye tal parte receptora
WO2010096829A2 (en) 2009-02-23 2010-08-26 Crocker Spinal, L.L.C. Press-on link for surgical screws
AU2010314910B2 (en) * 2009-11-09 2016-01-07 Applied Orthopaedics Llp Apparatus for retaining bone
US8419778B2 (en) * 2010-01-15 2013-04-16 Ebi, Llc Uniplanar bone anchor system
EP2505154A1 (de) * 2011-03-31 2012-10-03 Spinelab AG Wirbelsäulenimplantat
US8663290B2 (en) * 2011-10-28 2014-03-04 Ortho Innovations, Llc Top loading polyaxial ball and socket fastener with saddle
US9060814B2 (en) * 2011-10-28 2015-06-23 Ortho Innovations, Llc Spring clip bottom loading polyaxial ball and socket fastener
US8956361B2 (en) * 2011-12-19 2015-02-17 Amendia, Inc. Extended tab bone screw system
US9198769B2 (en) * 2011-12-23 2015-12-01 Pioneer Surgical Technology, Inc. Bone anchor assembly, bone plate system, and method
US10058354B2 (en) * 2013-01-28 2018-08-28 Roger P. Jackson Pivotal bone anchor assembly with frictional shank head seating surfaces
GB2512063B (en) * 2013-03-18 2019-05-29 Fitzbionics Ltd Spinal implant assembly
US9549765B2 (en) * 2014-04-03 2017-01-24 Zimmer Spine, Inc. Uniplanar bone screw
EP2985001B1 (en) * 2014-08-11 2017-04-19 Biedermann Technologies GmbH & Co. KG Polyaxial bone anchoring device
CN104825221B (zh) * 2015-05-14 2018-01-16 林健泽 一种改良式椎弓根螺钉
JP2018531081A (ja) * 2015-09-30 2018-10-25 上海三友医▲療▼器械股▲フン▼有限公司Ｓｈａｎｇｈａｉ Ｓａｎｙｏｕ Ｍｅｄｉｃａｌ Ｃｏ．，Ｌｔｄ． 横方向変位型スクリュー後尾、横方向調整可能型脊柱スクリュー及びその埋め込み方法
EP3184063B1 (en) * 2015-12-21 2019-07-10 Biedermann Technologies GmbH & Co. KG Polyaxial bone anchoring device
US10595907B2 (en) * 2017-02-16 2020-03-24 Rubicon Spine Llc Polyaxial pedicle screw

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