Connect public, paid and private patent data with Google Patents Public Datasets

A minimally invasive pedicle screw wedge lock

Download PDF

Info

Publication number
CN103784187B
CN103784187B CN 201410064129 CN201410064129A CN103784187B CN 103784187 B CN103784187 B CN 103784187B CN 201410064129 CN201410064129 CN 201410064129 CN 201410064129 A CN201410064129 A CN 201410064129A CN 103784187 B CN103784187 B CN 103784187B
Authority
CN
Grant status
Grant
Patent type
Application number
CN 201410064129
Other languages
Chinese (zh)
Other versions
CN103784187A (en )
Inventor
孙德修
Original Assignee
山东航维骨科医疗器械股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Abstract

本发明公开了一种微创楔形锁紧椎弓根钉,包括钉体1、顶丝2、锁紧楔3、压块4,所述钉体1设有螺钉部,所述螺钉部的上端设有钉座,所述钉座的侧面设有钉棒孔与持钉孔、顶端设有钉丝孔,所述钉丝孔壁设有两开口槽,所述锁紧楔的下部设有锁紧楔斜面、上部设有楔柄,所述楔柄上设有倒钩用于拆取锁紧楔,所述压块设有向下开口的圆弧槽,所述圆弧槽两外侧的上段设有两压块斜面、下段设有两导向凸台,使用时将螺钉部旋入椎体,再将弯好的脊柱棒5插入脊柱棒孔,然后依次将压块和两锁紧楔沿开口槽推至脊柱棒,再旋入顶丝压紧锁紧楔、压块并锁定脊柱棒。 The present invention discloses a wedge lock minimally invasive pedicle screw, comprising a nail body 1, the top wire 2, the locking wedge 3, 4 compact, the upper end is provided with a screw portion of the screw portion of the nail body anvil with the side surface of the staple anvil is provided with a rod holding hole nail hole, the nail tip is provided with the wire hole, the wire nail is provided with two open slots hole wall, a lower portion of the locking wedge is provided with a locking tight wedge taper, the upper handle is provided with a wedge, said upper wedge shank provided with barbs for cannibalized locking wedge, the compact is provided with downwardly opening arcuate groove, on the two outer arcuate slot sections compact has two inclined surfaces, the lower section is provided with two guide projections, when using the screw portion is screwed into the vertebral body, and then a good spinal rod bent spinal rod 5 is inserted into the hole, followed by the two locking wedges and clamps along the opening push to spinal rod groove, and then screwed into the top wire of a locking wedge pressed, compact and lock the spinal rod. 该微创楔形锁紧椎弓根钉采用楔形斜面加压防松锁紧方式,具有较强的自锁防松功能。 The wedge lock minimally invasive pedicle screw locking wedge ramp pressure locking manner, with a strong self-locking locking function.

Description

一种微创楔形锁紧椎弓根钉 A minimally invasive pedicle screw wedge lock

技术领域 FIELD

[0001] 本发明涉及骨科医疗器械领域。 [0001] The present invention relates to the field of orthopedic medical devices.

背景技术 Background technique

[0002] 近年来微创手术得到广泛的应用,微创椎弓根钉在脊柱手术中的应用也越来越多。 [0002] In recent years, minimally invasive surgery has been widely used, minimally invasive pedicle screw spinal surgery is also increasing. 专利号:CN200820178613.4公开了一种微创椎弓根钉,适用于治疗胸腰椎后路短节段创伤、肿瘤和脊柱不稳等疾病。 Patent number: CN200820178613.4 discloses a minimally invasive pedicle screw, suitable for the treatment of short segment posterior thoracolumbar trauma, tumors and diseases such as spinal instability. 目前的微创椎弓根钉,主要由旋入脊柱椎体的螺钉、连接螺钉与脊柱棒的钉座、及锁紧顶丝组成,其脊柱棒的锁紧方式,是通过顶丝端面压紧脊柱棒圆柱面形成的线接触方式锁紧的,从锁紧方式来分析,面接触方式比线接触方式的锁紧稳定性更大、防松性能更高。 Current minimally invasive pedicle screw, primarily by a screw screwed into the spinal vertebrae, the spinal rod is connected to the screw anvil, and locking the top wire, whose spinal rod locking manner, by pressing end faces of the top wire line contact surface forming a cylindrical spinal rod locking from the locking mode to analyze, locking surface contact is larger than the line contact stability, higher performance locking.

发明内容 SUMMARY

[0003] 本发明公开了一种微创楔形锁紧椎弓根钉,采用了锁紧防松性能更高的面接触式楔形增力加压的锁紧方式,包括钉体、顶丝、锁紧楔、压块,所述钉体设有螺钉部,用于旋入脊柱椎体,所述螺钉部的上端设有钉座,所述钉座的侧面设有贯通的脊柱棒孔与持钉孔,所述钉座的顶端设有顶丝孔,所述顶丝孔与脊柱棒孔相通,所述顶丝孔的内壁上设有两开口槽,用于配合专用扳手旋转钉体和放置所述压块与两个锁紧楔,所述压块设有向下开口的圆弧槽,所述圆弧槽的圆弧面要求与脊柱棒的圆柱面配合,所述圆弧槽两外侧的上段设有两压块斜面、下段设有两导向凸台,所述锁紧楔的下部设有锁紧楔斜面,所述锁紧楔斜面用于配合所述压块斜面锁紧脊柱棒,所述锁紧楔的上部设有楔柄,所述楔柄的顶面设为平面,所述楔柄上设有倒钩或螺纹等连接结构用 [0003] The present invention discloses a minimally invasive pedicle screw wedge lock, a locking mode locking using a higher performance locking wedge surface contact pressure booster, comprising a nail body, the top wire lock wedge tight, compact, the nail body is provided with a screw portion for screwing into the vertebral bodies, the upper end portion of the screw is provided with the staple holder, the staple holder is provided with a side surface of the spinal rod and the through hole holding the staple top hole, the holder is provided with a top wire nail hole, the top wire orifice communicating with the spinal rod hole, an opening is provided with two grooves on the inner wall of the top wire hole, for engaging a special wrench rotating body and place the staple two locking wedge and said compact, the compact is provided with a downwardly opening arcuate grooves, arcuate surface of the arcuate groove in claim mating with the cylindrical surface of the spinal rod, the two outer arcuate slot a lower section is provided with two compact upper ramp, the lower section is provided with two guide projections, the locking wedge is provided with a locking wedge inclined surface, said inclined surface for engaging said locking wedge locking ramp compact spinal rod, the said locking wedge is provided with an upper wedge shank, the shank wedge surface to a top plane, is provided with barbs or other structures connected with the threaded shank of the wedge 于拆取锁紧楔,使用时首先将螺钉部旋入脊柱椎体,再将弯好的脊柱棒插入脊柱棒孔,然后依次将压块和两锁紧楔放入两开口槽并使锁紧楔的斜面与压块的斜面贴合将压块的圆弧槽推至钉棒,再旋入顶丝并通过压紧锁紧楔和压块将脊柱棒稳固的锁定。 Cannibalized to a locking wedge, the first screw portion is screwed into the vertebral bodies during use, and then bent spinal rod insertion good spinal rod hole, followed by the compacts into two wedges and two locking grooves and the locking opening compact wedge inclined surface and the inclined surface of the compact bonded arcuate groove to push the staple bar, and then screwed into the top wire by pressing the locking wedges and clamps secure the spinal rod locking. 该微创楔形锁紧椎弓根钉采用了楔形斜面加压防松锁紧,具有更大的锁紧力和防松力,因此增强了脊柱手术的稳固性,从而可有效提高手术的成功率。 The use of minimally invasive pedicle screw wedge lock wedge locking ramp pressure lock, having a larger locking force and locking force, thus enhancing the stability of the spinal surgery, which can effectively improve the success rate of surgery .

附图说明 BRIEF DESCRIPTION

: :

[0004] 图1是本发明一种微创楔形锁紧椎弓根钉的示意图; [0004] FIG. 1 is a schematic view of the wedge lock present invention provides a minimally invasive pedicle screw;

[0005] 图2是图1的俯视图; [0005] FIG. 2 is a plan view of Figure 1;

[0006] 图3是本发明一种微创楔形锁紧椎弓根钉中钉体的示意图; [0006] FIG. 3 is a schematic view of present invention provide a pedicle screw wedge lock body in a minimally invasive nail;

[0007] 图4是图3的俯视图; [0007] FIG. 4 is a plan view of FIG 3;

[0008] 图5是本发明一种微创楔形锁紧椎弓根钉中锁紧楔的示意图; [0008] FIG. 5 is a schematic view of present invention provide a pedicle screw in the locking wedge lock wedge invasive;

[0009] 图6是本发明一种微创楔形锁紧椎弓根钉中压块的示意图; [0009] FIG. 6 is a schematic view of present invention provide a compact wedge lock in minimally invasive pedicle screw;

[0010] 附图中:1.钉体;2.顶丝;3.锁紧楔;4。 . [0010] In the accompanying drawings: 1 nail body; two wire; locking wedge 3; 4. 压块;5.脊柱棒;6.螺钉部;7.钉座,8.脊柱棒孔;9.顶丝孔;10.开口槽;11.锁紧楔斜面;12.楔柄;13.倒钩;14.圆弧槽;15压块斜面;16.导向凸台。 Compact; 5. spinal rod; 6 screw portion;. Anvil 7, 8 holes spinal rod;.. 9 wire orifice; 10 open slot;. The locking wedge ramp 11;. Wedge shank 12; 13 down hook; arcuate grooves 14; 15 compact ramp; 16 guide projection.

[0011] 实施方式: [0011] Embodiment:

[0012] 图1至图6示出了本发明一种微创楔形锁紧椎弓根钉的实施方式。 [0012] Figures 1 to 6 illustrate an embodiment of the present invention is a minimally invasive pedicle screw of the wedge lock.

[0013] 图1至图2示出了本发明一种微创楔形锁紧椎弓根钉各部件与脊柱棒的装配关系,其包括钉体1、顶丝2、锁紧楔3、压块4、脊柱棒5。 [0013] Figures 1 to 2 illustrate the relationship of the present invention is a method of assembling the locking wedge member and the respective pedicle screw minimally invasive spinal rod, comprising a nail body 1, the top wire 2, 3 the locking wedge, compact 4, 5 spinal rod.

[0014] 图3至图4示出了钉体I的结构,所述钉体I设有螺钉部6,用于旋入脊柱椎体,所述螺钉部6的上端设有钉座7,所述钉座7的侧面设有贯通的脊柱棒孔8与持钉孔,所述钉座7的顶端设有钉丝孔9,所述顶丝孔9与脊柱棒孔8相通,所述钉丝孔9的内壁上设有两开口槽10,用于配合专用扳手旋转钉体I和放置所述压块4与两个锁紧楔3。 [0014] FIG. 3 to FIG. 4 shows the structure of the body I of the staple, the staple body I is provided with a screw portion 6, for screwing into the vertebral bodies, the upper end portion of the screw 6 is provided anvil 7, the side surface of said anvil 7 is provided with the spinal rod through the hole 8 and the support nail hole, the nail tip nail wire holder 7 is provided with apertures 9, the jack screw hole 9 communicating with the spinal rod hole 8, the wire nails It is provided with two open slots 10, a special wrench for engaging and rotating the staple placing the compact body I with two locking wedges 4 3 9 on the inner wall of the hole.

[0015] 图5示出了锁紧楔3的结构,所述锁紧楔3的下部设有锁紧楔斜面11,所述锁紧楔斜面11用于配合压块斜面15锁紧脊柱棒5,所述锁紧楔3的上部设有楔柄12,所述楔柄12的顶面设为平面,所述楔柄12上设有倒钩13或螺纹等连接结构用于拆取锁紧楔3。 [0015] FIG. 5 shows the structure of the locking wedge 3, the lower portion 3 of the locking wedge ramp 11 is provided with a locking wedge, the locking wedge inclined surface 11 inclined surface 15 for engaging the locking clamps the spinal rod 5 an upper portion of the locking wedge 3 is provided with a wedge shank 12, the top surface of the wedge shank 12 is defined as a plane, the wedge shank 13 is provided with barbs or the like for threaded connection Detaching the locking wedge 12 3.

[0016] 图6示出了压块4的结构,所述压块4设有向下开口的圆弧槽14,所述圆弧槽14的圆弧面要求与脊柱棒5的圆柱面配合,所述圆弧槽14两外侧的上段设有两压块斜面15、下段设有两导向凸台16。 [0016] FIG. 6 shows the structure compact. 4, the pressure piece 4 is provided with a downwardly open arcuate slot 14 arcuate slot 14 arcuate surface of the mating cylindrical surfaces in claim 5 spinal rod, upper section is provided with two compact two outer inclined surface 1514 of the arcuate groove, the lower section is provided with two guide projections 16.

[0017] 使用时首先将螺钉部6旋入脊柱椎体,再将弯好的脊柱棒5插入脊柱棒孔8,然后依次将压块4和两个锁紧楔3放入两开口槽10,并将压块4的圆弧槽14推至脊柱棒5,使锁紧楔斜面11与压块斜面15贴合,再旋入顶丝2并通过压紧锁紧楔3和压块4将脊柱棒5稳固的锁定,该微创楔形锁紧椎弓根钉采用了楔形斜面加压防松锁紧,具有更大的锁紧力和防松力,因此增强了脊柱手术的稳固性,从而可有效提高手术的成功率。 [0017] First portion 6 is screwed into the screw when using vertebral bodies, and then bent spinal rod 5 is inserted good spinal rod hole 8, followed by the two compacts locking wedge 4 and the opening 3 into the two grooves 10, 4 is compact and the arcuate groove 14 to push the spinal rod 5, the locking ramp 11 and the wedge inclined surface 15 compacts bonded, and then screwed into the top wire 2 and 3 by pressing the locking wedge 4 and the spinal briquetting firmly lock the rod 5, the use of minimally invasive pedicle screw wedge lock wedge locking ramp pressure lock, having a larger locking force and locking force, thus enhancing the stability of the spinal surgery, thereby effectively improve the success rate of surgery.

Claims (4)

1.一种微创楔形锁紧椎弓根钉,包括钉体(1)、顶丝(2)、压块(4),所述钉体(I)设有螺钉部出),所述螺钉部出)的上端设有钉座(7),所述钉座(7)的侧面设有贯通的脊柱棒孔(8),所述钉座(7)的顶端设有钉丝孔(9),所述压块(4)设有向下开口的圆弧槽(14),其特征在于所述圆弧槽(14)两外侧的上段设有两压块斜面(15),所述圆弧槽(14)两外侧的下段设有两导向凸台(16),所述一种微创楔形锁紧椎弓根钉还包括锁紧楔(3),所述锁紧楔(3)的下部设有锁紧楔斜面(11),所述锁紧楔斜面(11)用于配合压块斜面(15)锁紧脊柱棒(5),所述锁紧楔(3)的上部设有楔柄(12),所述钉丝孔(9)的内壁上设有两开口槽(10)用于配合专用扳手旋转钉体和放置所述压块(4)与两个锁紧楔(3)。 A wedge lock minimally invasive pedicle screw, comprising a nail body (1), a top wire (2), the compact (4), said staple (I) is provided with a screw portion), the screw portion) is provided with an upper end of the anvil (7), the side surface of the staple holder (7) is provided with a spinal rod hole (8) through the top end of the anvil (7) is provided with a wire nail holes (9) , the pressure piece (4) is provided with arcuate grooves (14) downwardly open, characterized in that said arcuate groove (14) provided on both outer upper two compact bevel (15), said arcuate groove (14) is provided outside of the lower two two guide projections (16), said wedge lock a minimally invasive pedicle screw further comprises a locking wedge (3), the locking wedge (3) of the lower portion a locking wedge provided with an upper inclined surface (11), said locking wedge ramp (11) for engaging the compact bevel (15) lock the spinal rod (5), said locking wedge (3) is provided with a wedge shank (12), provided on the inner wall of the staple wire bore (9) of the two opening slots (10) for engaging a special wrench to the rotating body and the placement of the staple pressing block (4) with two locking wedges (3).
2.根据权利要求1所述一种微创楔形锁紧椎弓根钉,其特征在于所述楔柄(12)的顶面为平面。 According to claim 1. A wedge lock minimally invasive pedicle screw, characterized in that the wedge shank (12) of the top surface is flat.
3.根据权利要求1所述一种微创楔形锁紧椎弓根钉,其特征在于所述楔柄(12)上设有倒钩(13)或螺纹等连接结构用于拆取锁紧楔(3)。 The wedge lock 1. A minimally invasive pedicle screw as claimed in claim, characterized in that the locking wedges provided Detaching the barb (13) or a threaded connection for the wedge shank (12) (3).
4.根据权利要求1所述一种微创楔形锁紧椎弓根钉,其特征在于对脊柱棒(5)的锁定采用了楔形斜面加压的防松锁紧方式。 According to claim 1 A minimally invasive pedicle screw wedge lock, wherein the lock spinal rod (5) using a locking manner the locking wedge ramp pressure.
CN 201410064129 2014-02-19 2014-02-19 A minimally invasive pedicle screw wedge lock CN103784187B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201410064129 CN103784187B (en) 2014-02-19 2014-02-19 A minimally invasive pedicle screw wedge lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201410064129 CN103784187B (en) 2014-02-19 2014-02-19 A minimally invasive pedicle screw wedge lock

Publications (2)

Publication Number Publication Date
CN103784187A true CN103784187A (en) 2014-05-14
CN103784187B true CN103784187B (en) 2015-11-25

Family

ID=50660547

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201410064129 CN103784187B (en) 2014-02-19 2014-02-19 A minimally invasive pedicle screw wedge lock

Country Status (1)

Country Link
CN (1) CN103784187B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1241127A (en) * 1997-12-19 2000-01-12 托马斯·T·海德尔 Pedicle screw system for osteosynthesis
US6113601A (en) * 1998-06-12 2000-09-05 Bones Consulting, Llc Polyaxial pedicle screw having a loosely coupled locking cap
CN101198284A (en) * 2005-04-25 2008-06-11 新特斯有限责任公司 Bone anchor with locking cap and method of spinal fixation
CN102164551A (en) * 2008-07-24 2011-08-24 英格纽姆股份公司 Locking mechanism with two-piece washer
CN202637080U (en) * 2012-07-06 2013-01-02 常州市康辉医疗器械有限公司 Minimally invasive hollow pedicle screw
CN202821566U (en) * 2012-07-06 2013-03-27 常州市康辉医疗器械有限公司 Novel universal vertebral pedicle screw
CN203710116U (en) * 2014-02-19 2014-07-16 山东航维骨科医疗器械股份有限公司 Wedge-shaped minimally-invasive locking pedicle screw

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2855392B1 (en) * 2003-05-28 2005-08-05 Spinevision Connection device for osteosynthesis spinal
US7766945B2 (en) * 2004-08-10 2010-08-03 Lanx, Inc. Screw and rod fixation system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1241127A (en) * 1997-12-19 2000-01-12 托马斯·T·海德尔 Pedicle screw system for osteosynthesis
US6113601A (en) * 1998-06-12 2000-09-05 Bones Consulting, Llc Polyaxial pedicle screw having a loosely coupled locking cap
CN101198284A (en) * 2005-04-25 2008-06-11 新特斯有限责任公司 Bone anchor with locking cap and method of spinal fixation
CN102164551A (en) * 2008-07-24 2011-08-24 英格纽姆股份公司 Locking mechanism with two-piece washer
CN202637080U (en) * 2012-07-06 2013-01-02 常州市康辉医疗器械有限公司 Minimally invasive hollow pedicle screw
CN202821566U (en) * 2012-07-06 2013-03-27 常州市康辉医疗器械有限公司 Novel universal vertebral pedicle screw
CN203710116U (en) * 2014-02-19 2014-07-16 山东航维骨科医疗器械股份有限公司 Wedge-shaped minimally-invasive locking pedicle screw

Also Published As

Publication number Publication date Type
CN103784187A (en) 2014-05-14 application

Similar Documents

Publication Publication Date Title
US5098433A (en) Winged compression bolt orthopedic fastener
US5217497A (en) Apparatus for use in the treatment of spinal disorders
US6896677B1 (en) Rotary device for retrieving spinal column under treatment
US20070088357A1 (en) Adjustable bone anchor assembly
US8192471B2 (en) Rod attachment for head to head cross connector
US20120016418A1 (en) Interspinous fixation implant
US20070123870A1 (en) Bi-polar screw assembly
US6258090B1 (en) Closure for open ended medical implant and removal tool
US6786903B2 (en) Rotary device for fixing spinal column under treatment
US20070270839A1 (en) Multi-axial double locking bone screw assembly
US8221472B2 (en) Bone anchor with locking cap and method of spinal fixation
US20050273108A1 (en) Osteosynthesis clip and insertion tool for inserting an osteosynthesis clip into bone tissue fragments
US6179841B1 (en) Set screw for use with osteosynthesis apparatus
US7727261B2 (en) Multi-axial bone screw assembly
US20050096654A1 (en) Plug-type device for retrieving spinal column under treatment
US20120022594A1 (en) Minimally invasive surgical tower access devices and related methods
US20070270830A1 (en) Open axle surgical implant
US20080255619A1 (en) Posterior spinal fixation with colinear facet screw
US7214227B2 (en) Closure member for a medical implant device
US20020165613A1 (en) Intervertebral fixation device having one or more bracing elements
US7883531B2 (en) Multi-axial bone plate system
US20090281577A1 (en) Bone plate with reduction aids and methods of use thereof
WO2005041799A1 (en) System and method for stabilization of internal structures
US7794481B2 (en) Force limiting coupling assemblies for spinal implants
US20130079776A1 (en) Bone compression system

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
C14 Grant of patent or utility model