阅读说明：本技术 用于脊柱共平面矫形的支撑组件 (Support assembly for spinal co-planar correction ) 是由 郝定均 刘明岩 刘瑞锋 于 2021-09-24 设计创作，主要内容包括：本发明提供一种用于脊柱共平面矫形的支撑组件,包括：至少两个支撑块,所有的支撑块依次连接；每个支撑块包括依次连接的头部块体、中间块体和后部块体；头部块体上具有两个相对设置的限位柱；每个限位柱上具有两个矩形缺口面；头部块体的承接面的头端上设有球形承接槽部；中间块体上设有中间通孔；后部块体上设有容纳槽部；后部块体上具有容纳槽侧壁,每个容纳槽侧壁上设有导向槽部和限位通孔；容纳槽部的容纳槽底壁上设有收纳孔,收纳孔中设有定位部件,定位部件包括安装于收纳孔中的弹簧和与弹簧的后端连接的定位球,定位球穿出收纳孔。本发明的用于脊柱共平面矫形的支撑组件减少了工具的使用,简化了操作步骤,安装方便,节省了手术时间。(The present invention provides a support assembly for use in co-planar spine correction, comprising: the supporting blocks are connected in sequence; each supporting block comprises a head block body, a middle block body and a rear block body which are sequentially connected; the head block body is provided with two oppositely arranged limiting columns; each limiting column is provided with two rectangular notch surfaces; the head end of the bearing surface of the head block body is provided with a spherical bearing groove part; the middle block body is provided with a middle through hole; the rear block body is provided with an accommodating groove part; the rear block body is provided with accommodating groove side walls, and each accommodating groove side wall is provided with a guide groove part and a limiting through hole; the holding groove bottom wall of the holding groove part is provided with a holding hole, a positioning part is arranged in the holding hole, the positioning part comprises a spring arranged in the holding hole and a positioning ball connected with the rear end of the spring, and the positioning ball penetrates out of the holding hole. The support component for spinal column coplanar orthopedics reduces the use of tools, simplifies the operation steps, is convenient to install and saves the operation time.)

1. A support assembly for use in spinal co-planar orthopedic procedures, comprising: the supporting device comprises at least two supporting blocks (1), wherein all the supporting blocks (1) are connected in sequence;

each supporting block (1) comprises a head block body (100), a middle block body (200) and a rear block body (300) which are sequentially connected along the length direction of the supporting block (1);

the head block body (100) is provided with two oppositely arranged limiting columns (110), the two limiting columns (110) are sequentially arranged along the width direction of the supporting block (1), each limiting column (110) is cylindrical, and the axial direction of each limiting column (110) is the same as the width direction of the supporting block (1); the peripheral surface of each limiting column (110) is provided with two rectangular notch surfaces (111) which are arranged in parallel, the two rectangular notch surfaces (111) are sequentially arranged along the length direction of the supporting block (1), each rectangular notch surface (111) is parallel to the width direction of the supporting block (1), and two edge parts (112) of each rectangular notch surface (111) in the width direction are respectively positioned on two end surfaces of the limiting column (110);

the end face of one end, far away from the middle block body (200), of the head block body (100) is a bearing face (120), the bearing face (120) is semicircular, and a spherical bearing groove part (121) is arranged at the head end of the bearing face (120);

a middle through hole (210) is formed in the middle block body (200), and the axial direction of the middle through hole (210) is parallel to the height direction of the supporting block (1);

an accommodating groove part (310) is arranged on the end face, far away from the middle block body (200), of the rear block body (300), and the accommodating groove part (310) penetrates through the rear block body (300) along the height direction of the supporting block (1); the rear block body (300) is provided with two opposite accommodating groove side walls (311), each accommodating groove side wall (311) is provided with a guide groove part (320) and a limiting through hole (330), the guide groove parts (320) and the limiting through holes (330) are communicated with each other, the limiting through holes (330) are positioned in front of the guide groove parts (320), and the guide groove parts (320) extend to the end face, far away from the middle block body (200), of the rear block body (300); the limiting through holes (330) are circular holes, and the diameter of each limiting through hole (330) is larger than the distance between two oppositely arranged guide groove side walls (321) of the guide groove part (320); the limiting through hole (330) is in clearance fit with the limiting column (110); the distance between two oppositely arranged guide groove side walls (321) of the guide groove part (320) is more than or equal to the distance between two rectangular notch surfaces (111) of each limiting column (110);

a containing hole (340) is formed in a containing groove bottom wall (312) of the containing groove part (310), a positioning part is arranged in the containing hole (340), the positioning part comprises a spring (351) installed in the containing hole (340) and a positioning ball (352) connected with the rear end of the spring (351), and the positioning ball (352) penetrates out of the containing hole (340);

when two adjacent supporting blocks (1) are connected, two limiting columns (110) of the supporting block (1) at the rear part respectively pass through two guide groove parts (320) on the supporting block (1) at the front part, enter two limiting through holes (330) on the supporting block (1) at the front part, then rotate the supporting block (1) at the rear part, and a positioning ball (352) of the supporting block (1) at the front part is placed in a ball-shaped receiving groove part (121) of the supporting block (1) at the rear part.

2. A support assembly for spinal coplanar orthosis according to claim 1, wherein: the bearing surface (120) is also provided with two limiting groove parts (122) which are oppositely arranged, and the two limiting groove parts (122) are communicated with the spherical bearing groove part (121); each of the stopper groove portions (122) extends in the circumferential direction of the receiving surface (120) in a direction away from the spherical receiving groove portion (121).

3. A support assembly for spinal coplanar orthosis according to claim 1, wherein: the bottom wall (312) of the accommodating groove part (310) is a plane, the central axes of the two limiting through holes (330) of each supporting block (1) are collinear, and the distance between the central axis of each limiting through hole (330) and the bottom wall (312) of the accommodating groove part (310) is equal to the radius of the bearing surface (120).

4. A support assembly for spinal coplanar orthosis according to claim 1, wherein: a connecting line of a central point of the spherical bearing groove part (121) and a spherical central point of the positioning ball (352) is a central connecting line, and a plane which passes through the central connecting line and is parallel to the length direction of the supporting block (1) is a middle positioning surface; the supporting blocks (1) are symmetrically arranged by taking the middle positioning surface as a middle axial surface.

5. A support assembly for spinal coplanar orthosis according to claim 1, wherein: the middle through hole (210) is a circular through hole.

6. A support assembly for spinal coplanar orthosis according to claim 1, wherein: the positioning part also comprises a positioning connecting piece (360), and the positioning connecting piece (360) is detachably connected with the accommodating hole (340); the positioning connecting piece (360) is provided with a positioning hole (361) communicated with the accommodating groove part (310), the spring (351) and the positioning ball (352) are arranged in the positioning hole (361), and the front end of the spring (351) is connected with the positioning hole (361).

7. A support assembly for spinal coplanar orthosis according to claim 1, wherein: the extending direction of the guide groove part (320) is parallel to the length direction of the supporting block (1).

8. A support assembly for spinal coplanar orthosis according to claim 1, wherein: the supporting block (1) is provided with an upper surface (11) and a lower bottom surface (12), the upper surface (11) and the lower bottom surface (12) are both arranged in a plane and in parallel, the middle through hole (210) is formed in the upper surface (11), and the middle through hole (210) penetrates through the lower bottom surface (12).

9. A support assembly for spinal coplanar orthosis according to claim 1, wherein: the limiting column (110) is arranged on a mounting surface (13) of the head block body (100), and the mounting surface (13) is perpendicular to the upper surface (11).

10. A support assembly for spinal coplanar orthosis according to claim 1, wherein: the rear end of the positioning ball (352) penetrates out of the accommodating hole (340).

Technical Field

The invention relates to the technical field of medical instruments, in particular to a supporting component for spinal column coplanar correction.

Background

The normal spine is comprised of a plurality of relatively movable vertebral bodies, each having a respective three-dimensional axis, which is the X, Y and Z axes. The axis perpendicular to the coronal plane of the vertebral body is the X axis, the axis perpendicular to the horizontal plane of the vertebral body is the Z axis, and the axis perpendicular to the sagittal plane of the vertebral body is the Y axis. In a normal human spinal column in a standing position, the vertebral bodies are not displaced and rotated in the coronal plane and the horizontal plane, so that the X-axis and the Z-axis of each vertebral body are in the same plane, which is called a coplanar plane. The plane formed by the X axis and the Z axis of each vertebral body is a sagittal plane, when scoliosis occurs to the spine, each vertebral body of the lateral convex area is displaced and rotated in three coronal planes, a horizontal plane and the sagittal plane, so that the sagittal planes of all the vertebral bodies with scoliosis cannot be coplanar.

The prior Chinese invention patent 'coplanar deformation correction system', patent application number: CN 201010218781.3; which comprises the following steps: the system includes a plurality of extensions adapted to be coupled to a plurality of vertebral bodies, a first rod extending between and cooperating with the extensions, a second rod extending between and cooperating with the extensions, and a plurality of spacers having a length selected to be coupled between adjacent extensions. The extension is coupled to the respective vertebral body by a plurality of bone anchors, such as bone screws. The extension extends generally along a longitudinal axis and includes a proximal portion adapted to couple to a corresponding bone anchor in a vertebral body and an opposing distal portion, the second rod being moved in a proximal direction from a position adjacent the distal portion toward the proximal portion in an axial direction of the extension, which in turn causes the proximal portion to be positioned generally aligned along a second transverse axis. The extension member acts upon the vertebral bodies through the bone anchor to reduce spinal deformities through translational and rotational movement of the vertebral bodies, wherein the anterior-posterior axis of the vertebral bodies transitions from an abnormal or non-coplanar state to a corrected or coplanar state.

When the existing coplanar deformation correcting system is used for correcting the vertebral body in a non-coplanar state, two bars are needed, so that the operation is complicated.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the technical problem underlying the present invention is to provide a support assembly for spinal coplanar orthopaedic that is easy to operate.

To achieve the above and other related objects, the present invention provides a support assembly for spinal coplanar correction, comprising: the supporting blocks are connected in sequence;

each supporting block comprises a head block body, a middle block body and a rear block body which are sequentially connected along the length direction of the supporting block;

the head block body is provided with two oppositely arranged limiting columns, the two limiting columns are sequentially arranged along the width direction of the supporting block, each limiting column is cylindrical, and the axial direction of each limiting column is the same as the width direction of the supporting block; the outer peripheral surface of each limiting column is provided with two rectangular notch surfaces which are arranged in parallel, the two rectangular notch surfaces are sequentially arranged along the length direction of the supporting block, each rectangular notch surface is parallel to the width direction of the supporting block, and two edge parts of each rectangular notch surface in the width direction are respectively positioned on two end surfaces of the limiting column;

the end surface of one end of the head block body, which is far away from the middle block body, is a bearing surface, the bearing surface is semicircular, and a spherical bearing groove part is arranged at the head end of the bearing surface;

the middle block body is provided with a middle through hole, and the axial direction of the middle through hole is parallel to the height direction of the supporting block;

an accommodating groove part is arranged on the end face, far away from the middle block body, of the rear block body, and penetrates through the rear block body along the height direction of the supporting block; the rear block body is provided with two opposite accommodating groove side walls, each accommodating groove side wall is provided with a guide groove part and a limiting through hole which are communicated with each other, the limiting through hole is positioned in front of the guide groove part, and the guide groove part extends to the end face, far away from the middle block body, of the rear block body; the limiting through holes are circular holes, and the diameter of each limiting through hole is larger than the distance between two oppositely arranged guide groove side walls of the guide groove part; the limiting through hole is in clearance fit with the limiting column; the distance between two oppositely arranged guide groove side walls of the guide groove part is greater than or equal to the distance between two rectangular notch surfaces of each limiting column;

a containing hole is formed in the bottom wall of the containing groove part, a positioning part is arranged in the containing hole and comprises a spring arranged in the containing hole and a positioning ball connected with the rear end of the spring, and the positioning ball penetrates out of the containing hole;

when two adjacent supporting blocks are connected, the two limiting columns of the supporting block at the rear part respectively pass through the two guide groove parts on the supporting block at the front part, enter the two limiting through holes on the supporting block at the front part, and then rotate the supporting block at the rear part, and the positioning balls of the supporting block at the front part are placed in the spherical receiving groove parts of the supporting block at the rear part.

Preferably, the bearing surface is further provided with two oppositely arranged limiting groove parts, and both the two limiting groove parts are communicated with the spherical bearing groove part; each limiting groove part extends along the circumferential direction of the bearing surface towards the direction far away from the spherical bearing groove part.

Preferably, the bottom wall of the accommodating groove part is a plane, the central axes of the two limiting through holes of each support block are collinear, and the distance between the central axis of each limiting through hole and the bottom wall of the accommodating groove part is equal to the radius of the bearing surface.

Preferably, a connecting line of a central point of the spherical receiving groove part and a spherical point of the positioning ball is a central connecting line, and a plane passing through the central connecting line and parallel to the length direction of the supporting block is a middle positioning surface; the supporting blocks are symmetrically arranged by taking the middle positioning surface as a middle axial surface.

Preferably, the middle through hole is a circular through hole.

Preferably, the positioning part further comprises a positioning connector detachably connected with the accommodating hole; the positioning connecting piece is provided with a positioning hole communicated with the accommodating groove part, the spring and the positioning ball are arranged in the positioning hole, and the front end of the spring is connected with the positioning hole.

Preferably, the extending direction of the guide groove part is parallel to the length direction of the supporting block.

Preferably, the supporting block is provided with an upper surface and a lower bottom surface, the upper surface and the lower bottom surface are both planar and arranged in parallel, the middle through hole is formed in the upper surface, and the middle through hole penetrates through the lower bottom surface.

Preferably, the limiting column is arranged on a mounting surface of the head block body, and the mounting surface is perpendicular to the upper surface.

Preferably, the rear end of the positioning ball passes through the accommodating hole.

As described above, the support assembly for spinal coplanar orthopedics of the present invention has the following beneficial effects:

in the supporting component for spinal column coplanar correction, each supporting block is provided with a three-dimensional coordinate system, the X axis of the three-dimensional coordinate system of the supporting block is parallel to the length direction of the supporting block, the Y axis of the three-dimensional coordinate system of the supporting block is parallel to the width direction of the supporting block, the Z axis of the three-dimensional coordinate system of the supporting block is parallel to the height direction of the supporting block, and the plane where the X axis and the Z axis of the three-dimensional coordinate system of each supporting block are located is a vertical plane; all the supporting blocks are connected, when two adjacent supporting blocks are connected, the head block body of the supporting block at the rear part is connected with the rear block body of the supporting block at the front part, and the vertical planes of all the supporting blocks after connection are coplanar; the support component is arranged on the extension piece, so that the plane formed by the first bar, the second bar and the extension piece in the prior art can be replaced, and the extension piece can be supported to adjust the form of the sagittal plane of the spinal column; the support component for spinal column coplanar orthopedics reduces the use of tools, simplifies the operation steps, is convenient to install and saves the operation time.

Drawings

Fig. 1 is a perspective view of a support assembly for spinal coplanar orthopedic use according to the present embodiment.

Fig. 2 is a perspective view of a support block of the support assembly for spinal coplanar orthopedic use according to the present embodiment.

Fig. 3 is a sectional view schematically showing the support block of the support assembly for spinal coplanar orthopedics according to the present embodiment.

Fig. 4 is a schematic structural view showing an upper surface of a support block of the support assembly for spinal coplanar orthopedics according to the present embodiment.

Fig. 5 is a schematic perspective view of the guide groove side wall of the guide groove portion of the support block in the front direction parallel to the rectangular notch surface of the stopper post of the support block in the rear direction according to the embodiment.

Fig. 6 is a perspective view of a spherical receiving groove portion formed on a supporting block of the supporting assembly for spinal coplanar correction according to the present embodiment.

Fig. 7 is a perspective view illustrating a positioning ball provided in a receiving hole of a support block of the support assembly for spinal coplanar orthopedics according to the embodiment.

Fig. 8 is a perspective view showing the positioning ball provided in the positioning connection member of the support assembly for spinal coplanar orthopedics according to the embodiment.

Fig. 9 is a perspective view illustrating a receiving hole formed on a support block of the support assembly for spinal coplanar orthopedics according to the present embodiment.

Fig. 10 is a schematic cross-sectional view of the positioning ball of the front support block passing through one of the limiting grooves of the rear support block according to the present embodiment.

Fig. 11 is an enlarged perspective view of a portion a of fig. 10.

Fig. 12 is a schematic sectional view showing the configuration of the positioning ball of the front support block of the present embodiment dropping into the ball receiving groove of the rear support block.

Fig. 13 is a schematic structural view of the deformed spine according to the present embodiment.

Fig. 14 shows a schematic view of the vertebral body superior pedicle screw implantation of the vertebral column according to the embodiment.

FIG. 15 is a schematic view of the elongated cannula mounted to the pedicle screw of this embodiment.

Fig. 16 shows a schematic view of the configuration of the orthopedic rod of the present embodiment passing through the slot of the extension sleeve.

Fig. 17 is a schematic view showing a structure of the extension sleeve of the present embodiment to which the support block is attached.

Fig. 18 is a schematic view showing a structure of mounting a guide bar on the support block according to the present embodiment.

Fig. 19 is a schematic structural view of the support assembly for spinal coplanar correction according to the present embodiment, after completion of correction of the deformed spine.

Fig. 20 is a schematic structural view showing the screw plug installed on the pedicle screw according to the embodiment.

Fig. 21 is a schematic view showing the support assembly for spinal coplanar orthosis according to the present embodiment removed from the spinal column.

Description of the reference numerals

1 support block

11 upper surface of the container

12 lower bottom surface

13 mounting surface

100 head block

110 spacing post

111 rectangular notch surface

112 edge part

120 bearing surface

121 spherical receiving groove part

122 position-limiting groove part

200 intermediate block

210 middle via

300 rear block

310 accommodation groove part

311 side wall of accommodating groove

312 bottom wall of accommodation groove

320 guide groove part

321 guide groove side wall

330 limit through hole

340 receiving hole

341 internal screw thread

351 spring

352 positioning ball

360 positioning connecting piece

361 locating hole

362 external screw thread

40 pedicle screw

41 screw base

42 screw member

50 vertebral body

51 convex side

52 concave side

60 extension sleeve

61 open groove

70 orthopedic rod

80 screw plug

90 guide rod

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to the attached drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

As shown in fig. 1 to 13, the support assembly for spinal coplanar correction of the present embodiment includes: the supporting device comprises at least two supporting blocks 1, wherein all the supporting blocks 1 are connected in sequence;

each support block 1 comprises a head block 100, a middle block 200 and a rear block 300 which are connected in sequence along the length direction of the support block 1;

the head block 100 is provided with two oppositely arranged limiting columns 110, the two limiting columns 110 are sequentially arranged along the width direction of the supporting block 1, each limiting column 110 is cylindrical, and the axial direction of each limiting column 110 is the same as the width direction of the supporting block 1; the outer peripheral surface of each limiting column 110 is provided with two rectangular notch surfaces 111 which are arranged in parallel, the two rectangular notch surfaces 111 are sequentially arranged along the length direction of the supporting block 1, each rectangular notch surface 111 is parallel to the width direction of the supporting block 1, and two edge parts 112 of each rectangular notch surface 111 in the width direction are respectively positioned on two end surfaces of the limiting column 110;

the end surface of one end of the head block 100 far away from the middle block 200 is a bearing surface 120, the bearing surface 120 is semicircular, and the head end of the bearing surface 120 is provided with a spherical bearing groove part 121;

the middle block body 200 is provided with a middle through hole 210, and the axial direction of the middle through hole 210 is parallel to the height direction of the supporting block 1;

the end surface of the rear block 300 far away from the middle block 200 is provided with an accommodating groove part 310, and the accommodating groove part 310 penetrates through the rear block 300 along the height direction of the supporting block 1; the rear block body 300 is provided with two opposite accommodating groove side walls 311, each accommodating groove side wall 311 is provided with a guide groove part 320 and a limiting through hole 330 which are communicated with each other, the limiting through hole 330 is positioned in front of the guide groove part 320, and the guide groove part 320 extends to the end face, far away from the middle block body 200, of the rear block body 300; the limiting through holes 330 are circular holes, and the diameter of each limiting through hole 330 is larger than the distance A between two oppositely arranged guide groove side walls 321 of the guide groove part 320; the limiting through hole 330 is in clearance fit with the limiting column 110; the distance a between two oppositely arranged guide groove side walls 321 of the guide groove part 320 is greater than or equal to the distance between two rectangular notch surfaces 111 of each spacing column 110;

the accommodating groove bottom wall 312 of the accommodating groove part 310 is provided with an accommodating hole 340, a positioning part is arranged in the accommodating hole 340, the positioning part comprises a spring 351 installed in the accommodating hole 340 and a positioning ball 352 connected with the rear end of the spring 351, and the positioning ball 352 penetrates through the accommodating hole 340;

when two adjacent supporting blocks 1 are connected, the two limiting columns 110 of the supporting block 1 at the rear pass through the two guiding groove parts 320 on the supporting block 1 at the front respectively, enter the two limiting through holes 330 on the supporting block 1 at the front, and then rotate the supporting block 1 at the rear, and the positioning ball 352 of the supporting block 1 at the front is placed in the ball-shaped receiving groove part 121 of the supporting block 1 at the rear.

Each supporting block 1 is provided with a three-dimensional coordinate system, the X axis of the three-dimensional coordinate system of each supporting block 1 is parallel to the length direction of the supporting block 1, the Y axis of the three-dimensional coordinate system of each supporting block 1 is parallel to the width direction of the supporting block 1, the Z axis of the three-dimensional coordinate system of each supporting block 1 is parallel to the height direction of the supporting block 1, and the plane where the X axis and the Z axis of the three-dimensional coordinate system of each supporting block 1 are located is a vertical plane;

when the head block 100 of the supporting block 1 at the rear is connected with the rear block 300 of the supporting block 1 at the front, the positioning ball 352 of the supporting block 1 at the front is placed in the ball-shaped receiving groove 121 of the supporting block 1 at the rear, the ball-shaped receiving groove 121 is arranged on the head end of the receiving surface 120 of the head block 100, and the vertical planes of all the supporting blocks 1 after connection are coplanar;

the support component is arranged on the extension piece, so that the plane formed by the first bar, the second bar and the extension piece in the prior art can be replaced, and the extension piece can be supported to adjust the form of the sagittal plane of the spinal column; the support assembly for spinal co-planar orthopedic can be secured firmly within the vertebral body 50 directly on the orthopedic side after the orthopedic procedure. Compared with the prior art that the first bar and the second bar are used, the supporting component for spinal column coplanar correction reduces the use of tools, simplifies the operation steps, is convenient to install and saves the operation time.

The bearing surface 120 is also provided with two oppositely arranged limiting groove parts 122, and the two limiting groove parts 122 are both communicated with the spherical bearing groove part 121; each of the stopper groove portions 122 extends in the circumferential direction of the receiving surface 120 in a direction away from the spherical receiving groove portion 121; the positioning ball 352 of the front supporting block 1 passes through one of the limiting groove portions 122 of the rear supporting block 1 and then is placed in the ball receiving groove portion 121 of the rear supporting block 1. The position-limiting groove 122 guides the movement of the positioning ball 352.

The receiving groove bottom wall 312 of the receiving groove portion 310 is a plane, the central axes of the two limiting through holes 330 of each support block 1 are collinear, and the distance L1 between the central axis of each limiting through hole 330 and the receiving groove bottom wall 312 of the receiving groove portion 310 is equal to the radius R of the receiving surface 120. With the structure, when the positioning ball 352 of the supporting block 1 in front is placed in the ball receiving groove 121 of the supporting block 1 in rear, the positioning ball 352 of the supporting block 1 in front abuts against the supporting block 1 in rear, and rotation of the adjacent supporting block 1 is avoided.

A connecting line of the central point of the spherical receiving groove part 121 and the spherical center point of the positioning ball 352 is a central connecting line, and a plane which passes through the central connecting line and is parallel to the length direction of the supporting block 1 is a middle positioning surface; the supporting blocks 1 are symmetrically arranged by taking the middle positioning surface as a middle axial surface. The structure is convenient to process, and the structure of the supporting component is more stable. The vertical plane in this embodiment is the middle locating surface.

Since the extension sleeve 60 has a cylindrical structure, the middle through-hole 210 is a circular through-hole. The central bore 210 is for insertion of the extension sleeve 60.

The positioning part further comprises a positioning connecting piece 360, and the positioning connecting piece 360 is detachably connected with the accommodating hole 340; the positioning connecting member 360 is provided with a positioning hole 361 communicated with the accommodating groove portion 310, the spring 351 and the positioning ball 352 are arranged in the positioning hole 361, and the front end of the spring 351 is connected with the positioning hole 361. This configuration facilitates replacement of the positioning connection 360. In this embodiment, the receiving hole 340 is provided with an internal thread 341, the positioning connector 360 is provided with an external thread 362, and the receiving hole 340 is in threaded connection with the positioning connector 360, so that the structure is convenient to process and adjust the position of the positioning ball 352 in the length direction of the supporting block 1.

The extending direction of the guide groove portion 320 is parallel to the longitudinal direction of the support block 1. By the structure, after the two limiting columns 110 of the supporting block 1 at the rear pass through the two guide groove parts 320 on the supporting block 1 at the front respectively and enter the two limiting through holes 330 on the supporting block 1 at the front, the positioning ball 352 of the supporting block 1 at the front can be placed in the ball-shaped receiving groove part 121 of the supporting block 1 at the rear only by rotating the supporting block 1 at the rear by 90 degrees.

The supporting block 1 is provided with an upper surface 11 and a lower bottom surface 12, the upper surface 11 and the lower bottom surface 12 are both planar and arranged in parallel, the middle through hole 210 is arranged on the upper surface 11, and the middle through hole 210 penetrates through to the lower bottom surface 12. The limiting column 110 is arranged on the mounting surface 13 of the head block 100, and the mounting surface 13 is perpendicular to the upper surface 11. The structure is convenient to process.

The rear end of the positioning ball 352 passes through the receiving hole 340. The front portion of the detent ball 352 is seated in the receiving hole 340, so that the position of the detent ball 352 is stabilized. When the two limiting posts 110 of the supporting block 1 at the rear enter the two limiting through holes 330 of the supporting block 1 at the front, the supporting block 1 at the rear is rotated, and the supporting block 1 at the rear pushes the rear end of the positioning ball 352 into the receiving hole 340.

As shown in fig. 1 to 21, the supporting member for spinal coplanar correction of the present invention is applied to a right curvature spinal deformity, and the using method of the supporting member comprises the following steps:

1) connecting all the supporting blocks 1, wherein the head end of the supporting block 1 at the rear part and the rear end of the supporting block 1 at the front part are close to each other in two adjacent supporting blocks 1; the two adjacent supporting blocks 1 rotate relatively, so that the rectangular notch surfaces 111 of the limiting columns 110 of the supporting block 1 at the rear are parallel to the guide groove side walls 321 of the guide groove parts 320 of the supporting block 1 at the front, the two limiting columns 110 of the supporting block 1 at the rear pass through the two guide groove parts 320 of the supporting block 1 at the front respectively, enter the two limiting through holes 330 of the supporting block 1 at the front, the supporting block 1 at the rear rotates by 90 degrees, and the positioning ball 352 of the supporting block 1 at the front passes through one of the limiting groove parts 122 of the supporting block 1 at the rear and then is placed in the ball-shaped receiving groove part 121 of the supporting block 1 at the rear; when the positioning ball 352 of the front supporting block 1 passes through one of the limiting groove parts 122 of the rear supporting block 1, the rear supporting block 1 extrudes the steel ball, and at this time, the limiting column 110 falls into the limiting through hole 330; when the supporting block 1 at the rear rotates by 90 degrees, the positioning ball 352 of the supporting block 1 at the front falls into the limiting groove part 122 of the supporting block 1 at the rear, and the limiting groove part 122 is arranged so that the supporting block 1 rotates stably and has certain damping; when the upper surfaces 11 of two adjacent supporting blocks 1 are rotated to be parallel, the positioning balls 352 fall into the spherical receiving groove part 121;

after all the supporting blocks 1 are connected, two adjacent supporting blocks 1 rotate by taking the limiting column 110 as an axis, and the vertical planes of all the supporting blocks 1 are overlapped, namely all the supporting blocks 1 can be coplanar after being connected;

2) the pedicle screw 40 is implanted into the lateral bending region spine, the pedicle screw 40 comprises a screw seat 41 and a screw member 42 arranged on the screw seat 41, and the convex side 51 and the concave side 52 of each vertebral body 50 of each lateral bending region spine are respectively implanted into the pedicle screw 40; an extension sleeve 60 is mounted on the screw seat 41 on the convex side 51 of each vertebral body 50 in turn; implanting an orthopedic rod 70 on the convex side 51 of each vertebral body 50, wherein the orthopedic rod 70 is inserted into the slots 61 of all the extension tubes 60 in sequence, and the orthopedic rod 70 is pressed to the groove bottom of the U-shaped screw seat 41 of the pedicle screw 40 by passing through the slots 61 of all the extension tubes 60, so as to press the orthopedic rod 70 to the direction close to the screw member 42 as much as possible; sleeving the middle through hole 210 of each supporting block 1 of the installed supporting assembly on the extension sleeve 60; through the operation operations such as pressurization, expansion, rod rotation, osteotomy and the like, the guide rod 90 is utilized to sleeve the supporting block 1 which is difficult to install on the extension sleeve 60, the sagittal plane curvature of the vertebral body 50 is adjusted simultaneously when the corrected vertebral body 50 rotates, the correction of deformity is completed, and the vertebral body 50 is immediately stabilized under the action of the supporting component; installing a plug 80 in the pedicle screw 40 of the convex side 51 of each vertebral body 50 and locking the plug 80; the convex side 51 of the vertebral body 50 is the orthopedic side of the vertebral body 50;

3) the supporting block 1 and the extension sleeve 60 implanted on the convex side 51 of each vertebral body 50 are removed, the orthopedic rod 70 is implanted on the concave side 52 of each vertebral body 50 and locked with the screw plug 80, and the wound is sutured, thereby completing the operation.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.