Pedicle screw-rod system for lifting and restoring vertebral column vertebral body
阅读说明：本技术 一种用于脊柱椎体提拉复位的椎弓根钉棒系统 (Pedicle screw-rod system for lifting and restoring vertebral column vertebral body ) 是由 黄丙寅 贺军 徐玮陵 蔡渊源 于 2019-11-29 设计创作，主要内容包括：本申请公开了一种用于脊柱椎体提拉复位的椎弓根钉棒系统,包括椎弓根钉、棒以及与椎弓根钉相互配合的复位延长套、压棒套筒以及压棒扳手,所述椎弓根钉包括一体成型的钉头和钉座,所述钉座两边向上延伸形成有U字形凹槽,所述棒横置于所述钉座凹槽内,所述钉座U字形凹槽底部设置有若干卡持部,所述卡持部用于卡持所述棒,所述复位延长套套设用于所述钉座上,所述复位延长套上端表面设置有螺纹,所述压棒套筒套设于所述复位延长套上,所述压棒套筒下端两边向内凹陷形成凹槽,所述凹槽抵持所述棒；所述压棒扳手与所述复位延长套螺纹连接,所述压棒扳手中段设置有台阶部,所述台阶部抵持所述压棒套筒,通过旋转所述压棒扳手抵持压棒套筒带动压棒至所述U字形凹槽槽底。(The application discloses a vertebral pedicle screw-rod system for lifting and resetting a vertebral body of a spine, which comprises a vertebral pedicle screw, a rod, a resetting extension sleeve, a rod pressing sleeve and a rod pressing wrench, wherein the resetting extension sleeve, the rod pressing sleeve and the rod pressing wrench are matched with the vertebral pedicle screw; the pressing rod spanner is in threaded connection with the reset extension sleeve, a step portion is arranged in the middle section of the pressing rod spanner, the step portion supports the pressing rod sleeve, and the pressing rod spanner supports the pressing rod sleeve to drive a pressing rod to the bottom of the U-shaped groove through rotation.)
1. A pedicle screw rod system for lifting and resetting vertebral bodies of a spine is characterized in that: the pedicle screw comprises a pedicle screw, a rod, a reset extension sleeve, a rod pressing sleeve and a rod pressing wrench, wherein the reset extension sleeve, the rod pressing sleeve and the rod pressing wrench are matched with the pedicle screw, the pedicle screw comprises a screw head and a screw seat which are integrally formed, two sides of the screw seat extend upwards to form a U-shaped groove, the rod is transversely arranged in the screw seat groove, the bottom of the U-shaped groove of the screw seat is provided with a plurality of clamping parts, the clamping parts are used for clamping the rod, the reset extension sleeve is sleeved on the screw seat, the upper end surface of the reset extension sleeve is provided with threads, the rod pressing sleeve is sleeved on the reset extension sleeve, two sides of the lower end of the rod pressing sleeve are inwards sunken to form grooves, and the grooves abut against the rod; the pressing rod spanner is in threaded connection with the reset extension sleeve, a step portion is arranged in the middle section of the pressing rod spanner, the step portion supports the pressing rod sleeve, and the pressing rod spanner supports the pressing rod sleeve to drive a rod to the bottom of the U-shaped groove through rotation.
2. A pedicle screw and rod system for lifting reduction of a vertebral body of a spine as claimed in claim 1, wherein: the nail seat is characterized in that positioning holes are formed in two ends of the bottom of the nail seat, the reset extension sleeve is connected with the bottom of the nail seat and extends inwards to form a protruding portion, and the protruding portion is matched with the positioning holes.
3. A pedicle screw and rod system for lifting reduction of a vertebral body of a spine as claimed in claim 1, wherein: the upper end of the U-shaped groove is upwards inclined to form a positioning notch, and the inner part of the reset extension sleeve is inwards inclined to form an inclined plane boss matched with the positioning notch.
4. A pedicle screw and rod system for lifting reduction of a vertebral body of a spine as claimed in claim 1, wherein: the interior of the pressure bar wrench is hollow and provided with internal threads, and the internal threads are matched with the surface threads of the reset extension sleeve.
Technical Field
The application belongs to the field of medical equipment, and particularly relates to a pedicle screw rod system for lifting and resetting a vertebral column vertebral body.
Background
Disclosure of Invention
The invention aims to provide a pedicle screw rod system for lifting and restoring vertebral bodies of a spine, which overcomes the defects in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a pedicle screw and rod system for lifting and resetting a vertebral column vertebral body comprises a pedicle screw, a rod, a resetting extension sleeve, a rod pressing sleeve and a rod pressing spanner, wherein the resetting extension sleeve, the rod pressing sleeve and the rod pressing spanner are matched with the pedicle screw; the pressing rod spanner is in threaded connection with the reset extension sleeve, a step portion is arranged in the middle section of the pressing rod spanner, the step portion supports the pressing rod sleeve, and the pressing rod spanner supports the pressing rod sleeve to drive a rod to the bottom of the U-shaped groove through rotation.
Preferably, the two ends of the bottom of the nail seat are provided with positioning holes, the reset extension sleeve is connected with the bottom of the nail seat and extends inwards to form a protruding portion, and the protruding portion is matched with the positioning holes.
Preferably, the upper end of the U-shaped groove is upwards inclined to form a positioning notch, and the inner part of the reset extension sleeve is inwards inclined to form an inclined plane boss matched with the positioning notch.
Preferably, the interior of the pressure bar wrench is hollow and provided with internal threads, and the internal threads are matched with the surface threads of the reset extension sleeve.
Compared with the prior art, the pedicle screw rod system lengthens the pedicle screw seat part and is provided with the instrument positioning holes and the guide positioning notches on the left and the right. The pedicle screw is implanted into a vertebral body, after a rod is threaded, the reset extension sleeve is pushed along the notch, the reset extension sleeve can be fixed on the screw seat, the tail of the reset extension sleeve is provided with a thread design, then the rod pressing sleeve is sleeved on the reset extension sleeve, finally the wrench is screwed on the thread of the reset extension sleeve, the rod can be pressed into the screw groove by rotating the wrench, and the vertebral body is pulled and reset to a preset position
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a pedicle screw and rod system for lifting and repositioning of vertebral bodies of the spine according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a pedicle screw rod system for lifting and repositioning of vertebral bodies of a spine according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a reduction extension sleeve of a pedicle screw and rod system for lifting and reducing vertebral bodies of a spine according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a rod pressing sleeve of a pedicle screw rod system for lifting and reduction of vertebral bodies in a vertebral column according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a rod pressing wrench of a pedicle screw rod system for lifting and repositioning a vertebral body of a spine according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1-5, a pedicle screw and rod system for lifting and reduction of vertebral bodies of spine comprises a pedicle screw 1, a rod 2, a reduction extension sleeve 3, a rod pressing sleeve 4 and a rod pressing wrench 5, wherein the reduction extension sleeve 3, the rod pressing sleeve 4 and the rod pressing wrench are matched with the pedicle screw. The pedicle screw 1 comprises a head 101 and a screw seat 102 which are integrally formed, two sides of the screw seat 102 extend upwards to form a U-shaped groove 106, a pressing rod 2 is transversely arranged in the screw seat groove 106, the bottom of the U-shaped groove 106 of the screw seat is provided with a plurality of clamping parts 104, the clamping parts 104 are used for clamping the rod 2, a resetting extension sleeve 2 is sleeved on the screw seat 102, and a resetting extension sleeve 3 is sleeved on the screw seat 102 together with the U-shaped groove 106; the upper end surface of the resetting extension sleeve 3 is provided with
Preferably, both ends of the bottom of the nail seat 102 are provided with positioning holes 103, the reset extension sleeve 3 is connected with the bottom of the nail seat 102 and extends inwards to form a
Preferably, the upper end of the U-shaped groove 106 is formed with a positioning notch 105 inclined upward, and the inside of the reduction extension sleeve 3 is inclined inward to form an
In the technical scheme, the reset extension sleeve 3 is connected with the nail seat 102 through the clamping and finishing of the positioning hole 103 and the
Preferably, the inside of the pressure bar wrench 5 is provided with an
In conclusion, the pedicle screw rod system lengthens the pedicle screw seat part and is provided with the instrument positioning holes and the guide positioning notches on the left and the right. The pedicle screw is implanted into a vertebral body, after a rod is threaded, the reset extension sleeve is pushed along the notch, the reset extension sleeve can be fixed on the screw seat, the tail of the reset extension sleeve is provided with a thread design, then the rod pressing sleeve is sleeved on the reset extension sleeve, finally the wrench is screwed on the thread of the reset extension sleeve, the rod can be pressed into the screw groove by rotating the wrench, and the vertebral body is pulled and reset to a preset position
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a detailed description of the present application, and it should be noted that modifications and embellishments could be made by those skilled in the art without departing from the principle of the present application, and these should also be considered as the protection scope of the present application.
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