|Publication number||CN103784187 B|
|Application number||CN 201410064129|
|Publication date||25 Nov 2015|
|Filing date||19 Feb 2014|
|Priority date||19 Feb 2014|
|Also published as||CN103784187A|
|Publication number||201410064129.9, CN 103784187 B, CN 103784187B, CN 201410064129, CN-B-103784187, CN103784187 B, CN103784187B, CN201410064129, CN201410064129.9|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (9), Classifications (1), Legal Events (3)|
|External Links: SIPO, Espacenet|
技术领域 TECHNICAL FIELD
 本发明涉及骨科医疗器械领域。  The present invention relates to the field of orthopedic medical devices.
背景技术 Background technique
 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。  In recent years, minimally invasive surgery has been widely used, minimally invasive pedicle screw used in spine surgery more and more. 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, for the treatment of thoracolumbar posterior short segment trauma, tumors and spinal instability and other diseases. 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, mainly by screws screwed into the spine vertebrae, and spinal rod attachment screws nail seat, and locking the top wire, whose spinal rod locking manner, face pressed through the top wire line contact surface is formed spinal rod cylinder lock from locking way to analyze, way bigger than the locking surface contact stability line contact, the higher the locking performance.
发明内容 SUMMARY OF THE INVENTION
 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。  The present invention discloses a wedge lock minimally invasive pedicle screw, using lock locking higher performance surface contact pressure of the locking wedge energizing, including nail body, the top wire, locks tight wedge, compacts, the staple body is provided with a screw portion for screwing spinal vertebrae, the upper end of the screw portion is provided with nail seat, nail side of the spinal rod holder is provided with a through hole and hold nails top hole, the seat is provided with the top wire nail hole, the top wire hole hole communicating with the spinal rod with two open slots on the inner wall of the top wire hole with a special wrench for rotating body and place the nail said compact with the two locking wedge, which clamps down with a circular groove opening, circular surface of the circular groove requirements and spinal rod with a cylindrical surface, the two outer arcuate slot the lower part of the upper section has two compact slope, the lower section of the guide has two bosses, said locking wedge is provided with a locking wedge ramp, the ramp for engaging said locking wedge clamp locking bevel spinal rod, the said locking wedge of the upper part of the handle with a wedge, the top surface of the wedge to handle the plane, with a barb or threaded connection structure, etc. for demolition to take on the wedge locking wedge handle, when used first screw portion screwed into the vertebral bodies, and then the bent spinal rod is inserted into the spinal rod hole, followed by the compact and the two locking wedge into the two open slots and the locking wedge ramp slope and compact fit the clamps The circular groove to push to nail bar, and then screwed into the top wire and the spinal rod firmly locked by pressing the locking wedge and compact. 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 wedge lock minimally invasive pedicle screw using pressurized locking locking wedge ramp, with greater locking force and locking force, thereby enhancing the stability of spinal surgery, which can effectively improve the success rate of surgery .
附图说明 Brief Description
 图1是本发明一种微创楔形锁紧椎弓根钉的示意图；  FIG. 1 is a wedge lock of the present invention a schematic of minimally invasive pedicle screw;
 图2是图1的俯视图；  FIG. 2 is a plan view of FIG. 1;
 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；  FIG. 3 is a schematic diagram of the present invention, the wedge lock screw pedicle screw in minimally invasive body;
 图4是图3的俯视图；  FIG. 4 is a plan view of Figure 3;
 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；  FIG. 5 is a schematic diagram of the present invention, the wedge lock pedicle screw locking wedge in minimally invasive;
 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；  FIG. 6 is a schematic diagram of the present invention, the wedge lock minimally invasive pedicle screw in the compact;
 附图中:1.钉体；2.顶丝；3.锁紧楔；4。 .  In the drawings: 1 nail body; 2 top wire; 3 locking wedge; 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。 Briquetting; 5. spinal rod; 6 screw portion; 7 nail seat, spinal rod hole 8; 9 top wire hole; 10 open slots; 11 locking wedge ramp; 12 wedge shank; 13 down hook; 14 circular groove; 15 compact ramp; 16 guide boss.
 实施方式:  Embodiment:
 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。  Figures 1 to 6 shows a wedge lock minimally invasive pedicle screw embodiment of the present invention.
 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。  FIG. 1 to FIG. 2 shows a wedge lock of the present invention a minimally invasive pedicle screw spinal rod components and assembly relationships, including a nail body 1, the top wire 2, the locking wedge 3, briquetting 4, 5 spinal rod.
 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。  FIG. 3 to FIG. 4 shows the structure of the nail body I, I said staple body portion 6 provided with screw, screwed into the vertebral bodies for the upper end of the screw portion 6 of the seat 7 provided with nails, the said side seat 7 is provided with nail holes through the spinal rod 8 and the support nail hole, the top of the nail base 7 is provided with nail wire hole 9, the top wire hole 9 hole 8 communicating with the spinal rod, the staple wire It has two open slots 10, with a special wrench for rotating nail and body I put the clamps 4 with two locking wedge on the inner wall 3 hole 9.
 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。  FIG. 5 shows the structure of the locking wedge 3, the lower portion of said locking wedge 3 is provided with a locking wedge inclined surface 11, inclined surface 11 of the locking wedge inclined surface 15 for engaging the locking clamps the spinal rod 5 the upper portion of the locking wedge 3 is provided with a wedge handle 12, the wedge shank top surface 12 to a plane, the wedge shank 13 has a barb or threaded connections and other structures for Detaching the locking wedge 12 3.
 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。  FIG. 6 shows a compact structure 4, 4 is provided with the compact downwardly opening arcuate groove 14, circular surface of the circular groove 14 and the requirements of the spinal rod 5 with the cylindrical surface, compact upper section has two ramps 15 of the two outer circular groove 14, the next section is provided with two guide projections 16.
 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。  When using the first screw portion 6 is screwed into the spine vertebrae, then the bent spinal rod 5 is inserted into the spinal rod hole 8, and then turn the two locking wedge clamps 4 and 3 into two open slots 10, briquetting and 14 arc groove 4 is pushed to the spinal rod 5, the locking wedge ramp 11 and ramp 15 compact together, and then screwed into the top wire 2 and 3 by pressing the locking wedge and briquetting 4 spine solid locking bars 5, the wedge lock minimally invasive pedicle screw using a pressurized locking locking wedge ramp, with greater locking force and locking force, thereby enhancing the stability of spinal surgery, which can effectively improve the success rate of surgery.
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|14 May 2014||C06||Publication|
|11 Jun 2014||C10||Entry into substantive examination|
|25 Nov 2015||C14||Grant of patent or utility model|