CN2353322Y - Internal fixer for pedicle of vertebral arch of thoracic vertebra and lumbar vetebra - Google Patents

Internal fixer for pedicle of vertebral arch of thoracic vertebra and lumbar vetebra Download PDF

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Publication number
CN2353322Y
CN2353322Y CN 98251608 CN98251608U CN2353322Y CN 2353322 Y CN2353322 Y CN 2353322Y CN 98251608 CN98251608 CN 98251608 CN 98251608 U CN98251608 U CN 98251608U CN 2353322 Y CN2353322 Y CN 2353322Y
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CN
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Grant
Patent type
Prior art keywords
screw
rod
lower
spiro
upper
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Application number
CN 98251608
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Chinese (zh)
Inventor
邹天明
黄士中
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苏州市第二人民医院
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Abstract

The utility model relates to an inner fixing device for the pedicles of vertebral arches of thoracic vertebrae and lumbar vertebrae. The utility model is characterized in that the central section of a connecting sleeve (5) of spiral rods is provided with an outer hexagonal nut (6), and the upper and lower ends of the connecting sleeve (5) of spiral rods are respectively in threaded connection with the upper spiral rod (4) and the lower spiral rod (7). The upper spiral rod (4) and the lower spiral rod (7) are respectively engaged with an upper screw nail (1) and a lower screw nail (8). The outer hexagonal nut is adjusted to tension the screw nails on both sides of the hexagonal nut simultaneously to enable the screw nails to have axial bracing force to brace compressed fracture sections. Only three nuts are arranged on the whole device. The utility model has the advantages of convenient operation and operative time saving.

Description

胸腰椎椎弓根内固定器 Thoracolumbar pedicle fixation device

本实用新型涉及一种医疗器械,特别是脊柱固定器。 The present invention relates to a medical instrument, in particular spinal fixation device.

现有技术中,在胸腰椎骨折、脊柱滑脱手术中常用的固定器为DICK内固定器,该固定器需要旋紧的螺母较多,共达六个,操作繁琐,手术费时,又不适宜使用于胸椎。 Art, commonly used in thoracolumbar fractures, spondylolisthesis surgery holder within DICK holder, the holder needs more tightening of the nut, a total of six, complicated operation, time-consuming operation, and should not be used in the thoracic spine. 而另一种STEEFFE固定器则无轴向撑开力,不适宜于压缩性腰椎骨折的内固定,而RF固定器则是螺钉成角区剪力很大,易发生螺钉断裂。 While another fixture STEEFFE no axial force distraction, not suitable for the lumbar fixed compression fracture, while RF is a screw fixture to a large shear angle region, screw breakage prone.

本实用新型的目的在于提供一种结构简单、轴向撑开角度可调的胸腰椎椎弓根内固定器。 The present invention aims at providing a simple structure, axially adjustable angle distraction thoracic pedicle fixation device.

本实用新型的技术方案是:一种胸腰椎椎弓根内固定器,螺棒连接套的中央部设有外六角帽,所述的螺棒连接套的上端部与上螺棒的下端部螺纹连接,所述的螺棒连接套的下端部与下螺棒的上端部螺纹连接;所述的上螺棒的上端部的端面齿与所述的上螺钉端部的端面齿相啮合,所述的上螺棒的上端部与上螺钉的端部由上螺栓相紧固;所述的下螺棒的下端部的端面齿与所述的下螺钉端部的端面齿相啮合,所述的下螺棒的下端部与下螺钉的端部由下螺栓相紧固。 The technical solution of the present invention is: A thoracic lumbar pedicle screw, screw rod is provided with a central portion connected to an outer sleeve hex cap screw rod upper end of the sleeve is connected to the lower end portion of the rod screw thread connected to a screw rod connected with the upper portion of lower sleeve portion lower screw threaded rod; said end faces of the teeth on the screw rod upper face gear portion on the end of the screw is engaged, the the screw rod and the upper end portion of the screw is fastened by the bolt phase; said lower face gear screw rod lower end portion of the face gear portion of the lower end of the screw engages the lower spiro lower rod portion and the lower end portion of the screw is fastened by the bolt phase.

本实新型与现有技术相比具下列优点:由于上螺棒与上螺钉通过端面齿相啮合,因此其相对的角度可调节,下螺棒与下螺钉也同样角度可调,在调节好角度后可分别用上螺栓及下螺栓旋紧,再调节外六角帽,可同时拉紧两侧的螺钉使得它有轴向撑开力,撑起被压缩的骨折部。 This new solid having the following advantages over the prior art: Since the screw rod and the upper face gear is engaged by the screw, so the relative angle can be adjusted, the screw rod and the screw is also adjustable angle, the angle at regulate can spend the lower bolt and bolt are tightened, and then adjusting the hex cap screw can be tightened at the same time on both sides so that it has an axial distraction force, prop the fracture is compressed. 整个装置上只有三个螺母,操作方便,节省手术时间。 The entire apparatus easily only three nuts, operation, saving operation time.

下面结合附图及实施例对本实用新型作进一步的描述:附图1为本实用新型的结构示意图;附图2为附图1的仰视图; Connection with the following Examples and accompanying drawings further embodiment of the present invention is described as: Figure 1 is a schematic structural diagram novel utility; Figure 2 is a bottom view of Figure 1;

附图3为去掉下螺棒时的下螺钉的结构图;附图4为本实用新型去掉下螺钉及上螺钉时的后视图;其中:[1].上螺钉;[2].上螺栓;[3].刻度;[4].上螺棒;[5].螺棒连接套;[6].外六角帽;[7].下螺棒;[8].下螺钉;[9].下螺栓;[10].端面齿;[11].端面齿。 Figure 3 is a block diagram of the screw when the screw rod removed; Fig. 4 of the present invention to remove the screws and the rear view of the screw; wherein: [1] on the screw; [2] on the bolt;. [3] the scale; [4] the screw rod;.. [5] spiro rod connector sleeve; [6] hex cap; [7] the screw rod;. [8] the screw;. [9]. . Hirth [10];; lower bolt [11] face gear.

实施例:参见附图,一种胸腰椎椎弓根内固定器,螺棒连接套[5]的中央部设有外六角帽[6],所述的螺棒连接套[5]的上端部与上螺棒[4]的下端部螺纹连接,所述的螺棒连接套[5]的下端部与下螺棒[7]的上端部螺纹连接;所述的上螺棒[4]和下螺棒[7]上的螺纹方向相反,以便于转动外六角帽时可缩短或加长上下螺钉之间的距离,调节其轴向撑开角度。 Example: Referring to the drawings A thoracic lumbar pedicle screw, screw rod connecting sleeve [5] of the center portion is provided with an outer hexagon cap [6], the screw rod connecting sleeve [5] of the upper portion and the rod-spiro [4] connected to a lower end portion of the screw, the screw rod connecting sleeve [5] the lower portion of the lower bar-spiro [7] of the upper portion of a threaded connection; the upper rod spiro [4] and the a threaded rod opposite directions spiro [7] to facilitate rotation hex cap may shorten or lengthen the distance between the upper and lower screws, adjusting the angle of its axial distraction. 所述的上螺棒[4]的上端部的端面齿[10]与所述的上螺钉[1]端部的端面齿[11]相啮合,所述的上螺棒[4]的上端部与上螺钉[1]的端部由上螺栓[2]相紧固;所述的下螺棒[7]的下端部的端面齿[10]与所述的下螺钉[8]端部的端面齿[11]相啮合,所述的下螺棒[7]的下端部与下螺钉[8]的端部由下螺栓[9]相紧固。 Hirth [4] of the upper end portion of the rod-spiro [10] and the screw [1] an end face gear portion [11] is engaged, [4] the upper end of the upper screw bar and screw [1] of the end portion [2] with a fastening bolt; spiro rod end face gear [7] of the lower end portion of the lower [10] and the lower end portion of the screw according to [8] tooth [11] is engaged, the rod-spiro [7] and the lower end portion of the screw portion [8] in the fastened by screws [9] phase. 所述的螺棒连接套[5]的上部套在上螺棒[4]上,所述的螺棒连接套[5]的内壁螺纹与所述的上螺棒[4]的外螺纹相连接。 The screw rod of the screw rod connecting sleeve [5] set in the upper portion of the rod-spiro [4], the screw rod connecting sleeve [5] with said threaded inner wall [4] is connected to the external thread . 所述的螺棒连接套[5]的下部套在下螺棒[7]上,所述的螺棒连接套[5]的内壁螺纹与所述的下螺棒[7]的外螺纹相连接。 A lower portion of said screw rod connecting sleeve [5] sets the lower rod spiro [7], the screw rod connecting sleeve [5] the inner wall of the outer screw thread of the lower rod spiro [7] is connected. 所述的上螺栓[2]穿过所述的上螺棒[4]的上端部,所述的上螺栓[2]与上螺钉[1]相螺纹连接。 [2] through said upper rod spiro [4] the upper end portion of said bolt [2] [1] is connected with the screw thread of the bolt. 所述的下螺栓[9]穿过所述的下螺棒[7]的下端部,所述的下螺栓[9]与下螺钉[8]相螺纹连接。 Said screws [9] through the screwed rod according to [7] of the lower portion, said lower screw [9] [8] with a threaded connection with the screw. 所述的上螺钉[1]及下螺钉[8]的端部分别刻有刻度[3],可通过所述的刻度了解螺钉与螺棒的偏离角度,以便按手术方案正确操作。 Said screw [1] and the screw [8] The end portions engraved a scale [3], the deviation angle can be appreciated screw screwed through said rod scale to operate properly according to the surgical plan.

Claims (7)

  1. 1.一种胸腰椎椎弓根内固定器,其特征在于:螺棒连接套[5]的中央部设有外六角帽[6],所述的螺棒连接套[5]的上端部与上螺棒[4]的下端部螺纹连接,所述的螺棒连接套[5]的下端部与下螺棒[7]的上端部螺纹连接;所述的上螺棒[4]的上端部的端面齿[10]与所述的上螺钉[1]端部的端面齿[11]相啮合,所述的上螺棒[4]的上端部与上螺钉[1]的端部由上螺栓[2]相紧固;所述的下螺棒[7]的下端部的端面齿[10]与所述的下螺钉[8]端部的端面齿[11]相啮合,所述的下螺棒[7]的下端部与下螺钉[8]的端部由下螺栓[9]相紧固。 A thoracolumbar pedicle screw, characterized in that: screw rod connector sleeve [5] of the upper central portion provided with an outer hexagon cap [6], the screw rod connecting sleeve [5] and the lower end portion of the lower bar-spiro [7] on the upper end of the threaded rod spiro [4] connected to a lower end portion of the screw, the screw rod connecting sleeve [5]; said upper rod spiro [4] of the upper portion face gear [10] with the screw [1] an end face gear portion [11] is engaged, the upper rod spiro [4] and the upper end portion of the screw [1] by the upper end portion of the bolt [2] with a fastening; said lower face gear rod spiro [7] of the lower end portion [10] with the screws [8] the end face gear portion [11] is engaged, said lower spiro stick [7] and the lower end portion of the screw [8] of the end portion [9] with a lower bolt fastening.
  2. 2.根据权利要求1所述的胸腰椎椎弓根内固定器,其特征在于:所述的螺棒连接套[5]的上部套在上螺棒[4]上,所述的螺棒连接套[5]的内壁螺纹与所述的上螺棒[4]的外螺纹相连接。 The thoracolumbar pedicle screw according to claim 1, wherein: said screw rod connecting sleeve [5] set in the upper portion of the rod-spiro [4], connected to the screw rod external threads on the rod-spiro [4] the sleeve [5] and the inner wall of the screw is connected.
  3. 3.根据权利要求1所述的胸腰椎椎弓根内固定器,其特征在于:所述的螺棒连接套[5]的下部套在下螺棒[7]上,所述的螺棒连接套[5]的内壁螺纹与所述的下螺棒[7]的外螺纹相连接。 The thoracolumbar pedicle screw according to claim 1, wherein: said screw rod connecting sleeve [5] of the next lower casing stick spiro [7], the screw rod connecting sleeve [5] connected to the inner wall of the male screw thread of said lower rod spiro [7].
  4. 4.根据权利要求1所述的胸腰椎椎弓根内固定器,其特征在于:所述的上螺棒[4]和下螺棒[7]上的螺纹方向相反。 The thoracolumbar pedicle screw according to claim 1, wherein: said upper rod spiro [4] and the lower screw threaded rod opposite directions [7] on.
  5. 5.根据权利要求1所述的胸腰椎椎弓根内固定器,其特征在于:所述的上螺栓[2]穿过所述的上螺棒[4]的上端部,所述的上螺栓[2]与上螺钉[1]相螺纹连接。 The thoracolumbar pedicle screw according to claim 1, wherein: said bolt [2] through [4] to the upper end of the screw rod, said bolt [2] [1] is connected with the screw thread.
  6. 6.根据权利要求1所述的胸腰椎椎弓根内固定器,其特征在于:所述的下螺栓[9]穿过所述的下螺棒[7]的下端部,所述的下螺栓[9]与下螺钉[8]相螺纹连接。 The thoracolumbar pedicle screw according to claim 1, wherein: said screws [9] through rod spiro [7] of the lower end of the lower portion, said lower bolt [9] [8] with a threaded connection with the screw.
  7. 7.根据权利要求1所述的胸腰椎椎弓根内固定器,其特征在于:所述的上螺钉[1]及下螺钉[8]的端部分别刻有刻度[3]。 According to claim thoracolumbar pedicle fixation device of claim 1, wherein: said screw [1] and the screw [8] The end portions engraved a scale [3].
CN 98251608 1998-12-30 1998-12-30 Internal fixer for pedicle of vertebral arch of thoracic vertebra and lumbar vetebra CN2353322Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 98251608 CN2353322Y (en) 1998-12-30 1998-12-30 Internal fixer for pedicle of vertebral arch of thoracic vertebra and lumbar vetebra

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 98251608 CN2353322Y (en) 1998-12-30 1998-12-30 Internal fixer for pedicle of vertebral arch of thoracic vertebra and lumbar vetebra

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CN2353322Y true CN2353322Y (en) 1999-12-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100594006C (en) 2004-03-02 2010-03-17 脊骨技术公司 Dynamic linking element for a spinal attachment system, and fixing system including said linking element
CN102727308A (en) * 2011-04-01 2012-10-17 上海优益基医疗器械有限公司 Positioning reference frame capable of being repeatedly mounted and dismounted used for surgery navigation system
CN103767780A (en) * 2014-01-20 2014-05-07 倪文飞 Inner fixer for quantized bracing of bone vertebral fracture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100594006C (en) 2004-03-02 2010-03-17 脊骨技术公司 Dynamic linking element for a spinal attachment system, and fixing system including said linking element
CN102727308A (en) * 2011-04-01 2012-10-17 上海优益基医疗器械有限公司 Positioning reference frame capable of being repeatedly mounted and dismounted used for surgery navigation system
CN103767780A (en) * 2014-01-20 2014-05-07 倪文飞 Inner fixer for quantized bracing of bone vertebral fracture

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