Scoliosis fixator

Abstract

The utility model provides a scoliosis fixator which comprises a first adjusting part, a second adjusting part, a third adjusting part, a shoulder and back fixing part and a waist and back fixing part, one end of the first adjusting part is connected with the shoulder and back fixing part, a lantern ring is arranged at the other end of the first adjusting part, a convex ring is arranged at one end of the second adjusting part, and the third adjusting part is connected with the waist and back fixing part. A locking piece is slidably installed at the other end of the second adjusting piece, the inner circumference of the lantern ring is rotationally connected with the outer circumference of the convex ring, the outer circumference of the lantern ring is connected with the locking piece in a clamped mode, one end of the third adjusting piece is connected with the end, provided with the locking piece, of the second adjusting piece, and the other end of the third adjusting piece is slidably connected with the waist and back fixing piece; the waist and back fixing piece is movably provided with a positioning piece, and the positioning piece is used for fixing the position of the third adjusting piece relative to the waist and back fixing piece. The shoulder and back fixing piece can deflect relative to the waist and back fixing piece and can also move in the vertical direction relative to the waist and back fixing piece, and the scoliosis fixator is better in universality and more convenient to use.

Description

Technical Field

[0001] This application belongs to the technical field of medical devices, and more specifically, relates to a scoliosis fixator. Background Art

[0002] Scoliosis is a common spinal deformity disease. To treat scoliosis, a scoliosis fixator is required to fix the patient's spine.

[0003] The existing scoliosis fixator includes a shoulder and back fixing member, a waist and back fixing member, and an adjusting device. The adjusting device includes a slide rail and a slider. The slide rail is connected to the waist and back fixing member. One side of the slider is connected to the shoulder and back fixing member, and the other side of the slider is slidably installed on the slide rail. By moving the position of the slider on the slide rail, the vertical distance between the shoulder and back fixing member and the waist and back fixing member can be adjusted.

[0004] Since the adjusting device cannot adjust the relative angle between the shoulder and back fixing member and the waist and back fixing member, it is difficult to be applicable to the application scenarios where the shoulder and back fixing member needs to deflect relative to the waist and back fixing member. Therefore, there are problems of poor versatility and inconvenient use of the scoliosis fixator. Utility Model Content

[0005] One of the purposes of the embodiments of this application is to provide a scoliosis fixator to solve the technical problems of poor versatility and inconvenient use of the scoliosis fixator caused by the inability of the adjusting device in the prior art to adjust the relative angle between the shoulder and back fixing member and the waist and back fixing member.

[0006] To solve the above technical problems, in a first aspect, an embodiment of this application provides a scoliosis fixator, which includes a first adjusting member, a second adjusting member, a third adjusting member, a shoulder and back fixing member, and a waist and back fixing member; one end of the first adjusting member is connected to the shoulder and back fixing member, and a collar is provided at the other end of the first adjusting member; a convex ring is provided at one end of the second adjusting member, and a locking member is slidably installed at the other end of the second adjusting member. The inner circumference of the collar is rotatably connected to the outer circumference of the convex ring, and the outer circumference of the collar is engaged with the locking member; one end of the third adjusting member is connected to the end of the second adjusting member where the locking member is installed, the other end of the third adjusting member is slidably connected to the waist and back fixing member, and a positioning member is movably installed on the waist and back fixing member, and the positioning member is used to fix the position of the third adjusting member relative to the waist and back fixing member.

[0007] The beneficial effects of the scoliosis fixator provided by this application are as follows: By setting the first adjusting member, the second adjusting member, and the third adjusting member to cooperate with each other, the first adjusting member is used to connect the shoulder and back fixing member, and the third adjusting member is used to connect the waist and back fixing member. Connecting both the first adjusting member and the third adjusting member to the second adjusting member enables the shoulder and back fixing member and the waist and back fixing member to be used as a whole. Compared with the scoliosis fixator in the prior art, the inner circumference of the collar of this application is rotatably connected to the outer circumference of the convex ring, allowing the first adjusting member to deflect relative to the second adjusting member in a plane, and further enabling the shoulder and back fixing member to deflect relative to the waist and back fixing member. The deflection angle between the shoulder and back fixing member and the waist and back fixing member can be fixed by the locking member; the third adjusting member is slidably connected to the waist and back fixing member, enabling the third adjusting member to move vertically relative to the second adjusting member, and further enabling the shoulder and back fixing member to move vertically relative to the waist and back fixing member. The vertical distance between the shoulder and back fixing member and the waist and back fixing member is fixed by the positioning member, making the scoliosis fixator more versatile and easier to use.

[0008] In an implementable technical solution, the second adjusting member includes a bottom shell and a face shell that are detachably connected. The convex ring is connected to the bottom shell. The locking member is slidably installed in the bottom shell. One end of the first adjusting member provided with the collar and one end of the third adjusting member adjacent to the collar are clamped between the opposite surfaces of the bottom shell and the face shell.

[0009] In an implementable technical solution, the bottom shell is provided with a threaded hole. A fixing post is provided on the side of the face shell facing the bottom shell. A first jack is opened at one end of the third adjusting member adjacent to the collar. The fixing post passes through the first jack and is threadedly assembled in the threaded hole of the bottom shell.

[0010] In an implementable technical solution, the second adjusting member further includes a surrounding plate. The surrounding plate is connected to the bottom shell. The side of the surrounding plate facing the convex ring has an opening. The outer circumference of the locking member is slidably connected to the inner circumference of the surrounding plate. A first gear tooth is provided on one side of the locking member adjacent to the opening. A second gear tooth that meshes with the first gear tooth is provided around the outer circumference of the collar.

[0011] In an implementable technical solution, a first engaging portion is provided on the inner circumference of the surrounding plate. Second engaging portions and third engaging portions are provided at intervals on the outer circumference of the locking member for the first engaging portion to be snap-fitted.

[0012] In an implementable technical solution, a sliding hole is opened in the face shell. A driving portion that penetrates the sliding hole is provided on the side of the locking member facing the face shell.

[0013] In an implementable technical solution, a scale is provided in a circumferential direction on the surface of the face shell at one end of the first adjusting member where the collar is provided, and an observation hole is formed in the face shell to expose a part of the scale.

[0014] In an implementable technical solution, a convex lens is provided at a position corresponding to the observation hole on a side of the face shell facing away from the bottom shell.

[0015] In an implementable technical solution, an accommodation cavity is provided inside the lumbar and back fixing member. A first through hole and a mounting hole communicating with the accommodation cavity are respectively formed on two opposite sides of the lumbar and back fixing member. An elastic sheet is provided at the mounting hole. A plurality of second jacks are formed in a part of the third adjusting member and are disposed inside the accommodation cavity. A connection hole is provided between adjacent second jacks. The positioning member penetrates through the first through hole and is inserted into one of the plurality of second jacks, and the elastic sheet is for the positioning member to abut against.

[0016] In an implementable technical solution, the positioning member includes a first end head, a second end head and a column. The first end head and the second end head are respectively connected to two ends of the column, and the outer diameters of the first end head and the second end head are both larger than the outer diameter of the column. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of a spinal scoliosis fixator provided by an embodiment of the present application;

[0019] Figure 2 It is an exploded view of the spinal scoliosis fixator in an embodiment of the present application;

[0020] Figure 3 In an embodiment of the present application Figure 2 Rear view;

[0021] Figure 4 It is a schematic structural diagram of the bottom shell in an embodiment of the present application;

[0022] Figure 5 It is a schematic structural diagram of the locking member in an embodiment of the present application;

[0023] Figure 6 It is a schematic structural diagram of the positioning member in an embodiment of the present application.

[0024] Among them, the reference numerals in the drawings:

[0025] 10. First adjusting member; 11. Collar; 12. Second gear teeth; 13. Scale

[0026] 20. Second adjusting member; 21. Bottom case; 211. Convex ring; 212. Enclosing plate; 213. First engaging portion; 22. Face case; 221. Fixed column; 222. Convex lens; 201. Screw hole; 202. Opening; 203. Sliding hole

[0027] 30. Third adjusting member; 301. First jack; 302. Second jack; 303. Connecting hole

[0028] 40. Shoulder fixing member

[0029] 50. Lumbar fixing member; 501. First through hole; 502. Second through hole

[0030] 60. Locking member; 61. First gear teeth; 62. Second engaging portion; 63. Third engaging portion; 64. Driving portion

[0031] 70. Positioning member; 71. First end; 72. Second end; 73. Column Detailed implementation manner

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0034] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0035] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more, unless otherwise specifically defined.

[0036] The following is a detailed description in conjunction with specific drawings and embodiments:

[0037] Please refer to Figures 1 to 4 , an embodiment of the present application provides a scoliosis fixator. The scoliosis fixator includes a first adjusting member 10, a second adjusting member 20, a third adjusting member 30, a shoulder and back fixing member 40, and a waist and back fixing member 50. One end of the first adjusting member 10 is connected to the shoulder and back fixing member 40, and a collar 11 is provided at the other end of the first adjusting member 10. A convex ring 211 is provided at one end of the second adjusting member 20, and a locking member 60 is slidably installed at the other end of the second adjusting member 20. The inner circumference of the collar 11 is rotatably connected to the outer circumference of the convex ring 211, and the outer circumference of the collar 11 is engaged with the locking member 60. One end of the third adjusting member 30 is connected to the end of the second adjusting member 20 where the locking member 60 is installed, and the other end of the third adjusting member 30 is slidably connected to the waist and back fixing member 50. A positioning member 70 is movably installed on the waist and back fixing member 50, and the positioning member 70 is used to fix the position of the third adjusting member 30 relative to the waist and back fixing member 50.

[0038] By arranging the first adjusting member 10, the second adjusting member 20, and the third adjusting member 30 to cooperate with each other, the first adjusting member 10 is used to connect the shoulder and back fixing member 40, and the third adjusting member 30 is used to connect the waist and back fixing member 50. Connecting both the first adjusting member 10 and the third adjusting member 30 to the second adjusting member 20 enables the shoulder and back fixing member 40 and the waist and back fixing member 50 to be combined as a whole for use; the inner circumference of the collar 11 is rotatably connected to the outer circumference of the convex ring 211, allowing the first adjusting member 10 to deflect relative to the second adjusting member 20 in a plane, thereby enabling the shoulder and back fixing member 40 to deflect relative to the waist and back fixing member 50, and the deflection angle between the shoulder and back fixing member 40 and the waist and back fixing member 50 can be fixed by the locking member 60; the third adjusting member 30 is slidably connected to the waist and back fixing member 50, allowing the third adjusting member 30 to move vertically relative to the second adjusting member 20, thereby enabling the shoulder and back fixing member 40 to move vertically relative to the waist and back fixing member 50, and the vertical distance between the shoulder and back fixing member 40 and the waist and back fixing member 50 is fixed by the positioning member 70, making the scoliosis fixator more versatile and easier to use.

[0039] In an application, the vertical direction refers to the height direction when the user stands. When the user wears the scoliosis fixator, first operate the positioning member 70 to preliminarily adjust the vertical distance between the shoulder and back fixing member 40 and the waist and back fixing member 50 to adapt to the user's body size so that the user can put on the shoulder and back fixing member 40 and the waist and back fixing member 50. Then operate the waist and back fixing member 50 to fix the user's waist and back. Then operate the positioning member 70 to perform secondary fine-tuning on the vertical distance between the shoulder and back fixing member 40 and the waist and back fixing member 50. Then operate the locking member 60 to adjust the deflection angle between the shoulder and back fixing member 40 and the waist and back fixing member 50. Finally, operate the shoulder and back fixing member 40 to fix the user's shoulder and back, so as to be adaptable to different means of scoliosis treatment for patients with different body sizes and shapes.

[0040] Understandably, in other embodiments of the present application, after the user puts on the shoulder and back fixing member 40 and the waist and back fixing member 50, the user can also first operate the shoulder and back fixing member 40 to fix the user's shoulder and back, then operate the locking member 60 to adjust the deflection angle between the shoulder and back fixing member 40 and the waist and back fixing member 50, then operate the positioning member 70 to perform secondary fine-tuning on the vertical distance between the shoulder and back fixing member 40 and the waist and back fixing member 50, and finally operate the waist and back fixing member 50 to fix the user's waist and back.

[0041] In one embodiment, please refer to Figures 1 to 4 , the second adjusting member 20 includes a bottom shell 21 and a face shell 22 that are oppositely arranged and detachably connected. The surface of the bottom shell 21 facing the face shell 22 is provided with a convex ring 211, and the surface of the face shell 22 facing the bottom shell 21 is provided with fixing columns 221 for connecting the third adjusting member 30.

[0042] In an application, the bottom shell 21 and the face shell 22 can be assembled by means of bolt connection or snap connection, and the first adjusting member 10 and the third adjusting member 30 are clamped between the opposite surfaces of the bottom shell 21 and the face shell 22, with high production and assembly efficiency.

[0043] In one embodiment, please refer to Figures 1 to 4 , the bottom shell 21 is provided with a screw hole 201, one end of the third adjusting member 30 adjacent to the sleeve ring 11 is provided with a first jack 301, and the fixing column 221 passes through the first jack 301 and is threadedly assembled in the screw hole 201 of the bottom shell 21.

[0044] In an application, the fixing column 221 is integrally injection-molded with the face shell 22. One end of the fixing column 221 is vertically connected to the face shell 22, and the other end of the fixing column 221 is threadedly assembled at the screw hole 201 of the bottom shell 21. There are multiple screw holes 201 and fixing columns 221 and the number is the same. The multiple screw holes 201 and the multiple fixing columns 221 correspond to each other to ensure the connection stability between the bottom shell 21 and the face shell 22.

[0045] In application, the number of the first jacks 301 is multiple, and the number of the first jacks 301 is less than that of the screw holes 201. A part of the multiple fixing posts 221 penetrates through the corresponding first jacks 301 and is connected to the corresponding screw holes 201, so as to enhance the connection stability between the third adjusting member 30 and the second adjusting member 20.

[0046] Specifically, first, disassemble the bottom case 21 and the face case 22, sleeved the collar 11 on the outer periphery of the convex ring 211, then sleeved the end of the third adjusting member 30 provided with the first jacks 301 on the outer periphery of the fixing posts 221, and then install the bottom case 21 and the face case 22, so as to simply and efficiently connect the first adjusting member 10 and the third adjusting member 30 to the second adjusting member 20.

[0047] In one embodiment, please also refer to Figures 1 to 4 , the second adjusting member 20 further includes a surrounding plate 212. The surrounding plate 212 is connected to the bottom case 21. The side of the surrounding plate 212 facing the convex ring 211 has an opening 202. The outer periphery of the locking member 60 is slidably connected to the inner periphery of the surrounding plate 212. A first gear tooth 61 is provided on the side of the locking member 60 adjacent to the opening 202. A second gear tooth 12 engaged with the first gear tooth 61 is provided on the outer periphery of the collar 11 in a circumferential manner.

[0048] In application, the surrounding plate 212 has a U-shaped structure, and the locking member 60 slides along the radial direction of the convex ring 211, so that the first gear tooth 61 can be engaged with or separated from the second gear tooth 12.

[0049] In one embodiment, please also refer to Figures 1 to 5 , a first engaging portion 213 is provided on the inner periphery of the surrounding plate 212, and a second engaging portion 62 and a third engaging portion 63 for the first engaging portion 213 to be clamped are provided at intervals on the outer periphery of the locking member 60.

[0050] In application, the second engaging portion 62 is closer to the convex ring 211 than the third engaging portion 63. When the first engaging portion 213 is clamped with the second engaging portion 62, the first gear tooth 61 is engaged with the second gear tooth 12, and the collar 11 cannot rotate relative to the convex ring 211. When the first engaging portion 213 is clamped with the third engaging portion 63, the first gear tooth 61 is separated from the second gear tooth 12, and the collar 11 can rotate relative to the convex ring 211.

[0051] Specifically, in one embodiment of the present application, the first engaging portion 213 is a flange, and both the second engaging portion 62 and the third engaging portion 63 are grooves. Understandably, in other embodiments of the present application, the first engaging portion 213 is a groove, and both the second engaging portion 62 and the third engaging portion 63 are flanges.

[0052] In one embodiment, please also refer to Figures 1 to 5 , the face case 22 is provided with a sliding hole 203, and a driving portion 64 penetrating through the sliding hole 203 is provided on the side of the locking member 60 facing the face case.

[0053] In application, the driving portion 64 can be a protrusion, and the sliding hole 203 is in a long strip shape. The user can move the locking member 60 by vertically sliding the driving portion 64 so that the first engaging portion 213 can engage with the second engaging portion 62 or the third engaging portion 63 .

[0054] In one embodiment, please refer to Figures 1 to 4 The first adjusting member 10 is provided with a ring 11 at one end thereof, and a scale is arranged around the surface of the face shell 22, and the face shell 22 is provided with an observation hole for exposing a part of the scale.

[0055] In application, the setting of the scale 13 can more accurately adjust the deflection angle between the first adjusting member 10 and the second adjusting member 20. In one example of the present application, the range of the scale 13 can be from negative forty degrees to positive forty degrees, with one gear every ten degrees. It can be understood that in other examples of the present application, the range and gear of the scale 13 can also be other values.

[0056] In one embodiment, please refer to Figures 1 to 4 A convex lens 222 is provided at a position corresponding to the observation hole on the side of the surface shell 22 away from the bottom shell 21.

[0057] In application, the convex lens 222 can help users read the value of the scale 13 more conveniently.

[0058] In one embodiment, please refer to Figures 1 to 4 The waist and back fixing component 50 has an accommodating cavity inside, and the opposite sides of the waist and back fixing component 50 are respectively provided with a first through hole 501 and a mounting hole connected to the accommodating cavity, and a spring sheet is provided at the mounting hole. The third adjusting component 30 is provided with a plurality of second plug holes 302 and is placed in the accommodating cavity, and a connecting hole 303 is provided between adjacent second plug holes 302. The positioning component 70 passes through the first through hole 501 and is inserted into one of the plurality of second plug holes 302, and the spring sheet is used to abut the positioning component 70.

[0059] In application, the positioning member 70 and the third adjusting member 30 are perpendicular to each other, and the side of the waist and back fixing member 50 facing the shoulder and back fixing member 40 has a second through hole 502 connected to the accommodating cavity, and part of the third adjusting member 30 is inserted into the accommodating cavity through the second through hole 502. When the user puts on the waist and back fixing member 50, the first through hole 501 is placed on the side away from the user, and the mounting hole and the spring clip are placed on the side facing the user. Multiple second sockets 302 are evenly spaced vertically, and the positioning member 70 is inserted into different second sockets 302 to correspond to different vertical spacings between the shoulder and back fixing members 40 and the waist and back fixing members 50, so as to adapt to users of different body shapes.

[0060] In one embodiment, please refer to Figures 1 to 6, the positioning member 70 includes a first end 71, a second end 72 and a column 73. The first end 71 and the second end 72 are respectively connected to both ends of the column 73, and the outer diameters of the first end 71 and the second end 72 are both larger than the outer diameter of the column 73.

[0061] In application, an installation groove is formed on the outer periphery of the first through hole 501 for placing the first end 71, the second end 72 is placed in one of the plurality of second jacks 302, and the connection hole 303 allows the column 73 to move between adjacent second jacks 302 to adjust the relative position between the positioning member 70 and the third adjusting member 30.

[0062] Specifically, when the lumbar and back fixing member 50 is in the initial position, the first end 71 is placed at the first through hole 501 and abuts against the lumbar and back fixing member 50, the second end 72 is placed in the second jack 302 corresponding to the initial position, and the second end 72 abuts against the third adjusting member 30.

[0063] Specifically, when the lumbar and back fixing member 50 moves from the initial position to the target position, first press the first end 71 to push the second end 72 and the column 73. The second end 72 leaves the second jack 302 corresponding to the initial position and abuts against the elastic piece. The column 73 is placed in the second jack 302 corresponding to the initial position. Keep pressing the first end 71, and then slide the lumbar and back fixing member 50 vertically to the target position. During this process, the column 73 passes through a plurality of connection holes 303 and a plurality of second jacks 302. Finally, release the pressing action on the first end 71, and the second end 72 moves into the second jack 302 corresponding to the target position under the resilience of the elastic piece, thereby fixing the vertical distance between the shoulder and back fixing member 40 and the lumbar and back fixing member 50.

[0064] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A scoliosis fixator, characterized in that: It comprises a first adjusting member (10), a second adjusting member (20), a third adjusting member (30), a shoulder and back fixing member (40) and a waist and back fixing member (50); One end of the first adjusting member (10) is connected to the shoulder fixing member (40), and the other end of the first adjusting member (10) is provided with a sleeve ring (11); A convex ring (211) is provided at one end of the second adjusting member (20), a locking member (60) is slidably mounted at the other end of the second adjusting member (20), the inner periphery of the collar (11) is rotatably connected to the outer periphery of the convex ring (211), and the outer periphery of the collar (11) is snap-fitted to the locking member (60); One end of the third adjusting member (30) is connected to one end of the second adjusting member (20) on which the locking member (60) is installed, and the other end of the third adjusting member (30) is slidably connected to the waist and back fixing member (50), and the waist and back fixing member (50) is movably installed with a positioning member (70), and the positioning member (70) is used to fix the position of the third adjusting member (30) relative to the waist and back fixing member (50).

2. The scoliosis fixator according to claim 1, characterized in that: The second adjusting member (20) comprises a bottom shell (21) and a surface shell (22) which are arranged opposite to each other and are detachably connected; the surface of the bottom shell (21) facing the surface shell (22) is provided with the convex ring (211); the surface of the surface shell (22) facing the bottom shell (21) is provided with a fixing column (221) for connection with the third adjusting member (30).

3. The scoliosis fixator according to claim 2, characterized in that: The bottom shell (21) is provided with a screw hole (201), the third adjusting member (30) is provided with a first insertion hole (301) at one end adjacent to the sleeve ring (11), and the fixing column (221) passes through the first insertion hole (301) and is threadedly assembled in the screw hole (201) of the bottom shell (21).

4. The scoliosis fixator according to claim 2, characterized in that: The second adjusting member (20) further comprises a surrounding plate (212), wherein the surrounding plate (212) is connected to the bottom shell (21), and the surrounding plate (212) has an opening (202) on a side facing the convex ring (211); the outer periphery of the locking member (60) is slidably connected to the inner periphery of the surrounding plate (212); a first gear tooth (61) is provided on a side of the locking member (60) adjacent to the opening (202); and a second gear tooth (12) meshing with the first gear tooth (61) is provided on the outer periphery of the collar (11).

5. The scoliosis fixator according to claim 4, characterized in that: A first engaging portion (213) is provided on the inner periphery of the enclosure plate (212), and a second engaging portion (62) and a third engaging portion (63) are provided at intervals on the outer periphery of the locking member (60) for engagement with the first engaging portion (213).

6. The scoliosis fixation device according to claim 2, characterized in that: The face shell (22) is provided with a sliding hole (203), and the locking member (60) is provided with a driving portion (64) penetrating the sliding hole (203) on the side facing the face shell.

7. The scoliosis fixation device according to claim 2, characterized in that: The first adjusting member (10) is provided with a scale (13) on the surface of one end of the sleeve ring (11) facing the surface shell (22), and the surface shell (22) is provided with an observation hole for partially exposing the scale (13).

8. The scoliosis fixation device according to claim 7, characterized in that: A convex lens (222) is provided at a position corresponding to the observation hole on a side of the surface shell (22) facing away from the bottom shell (21).

9. The scoliosis fixation device according to claim 1, characterized in that: The waist and back fixing component (50) has an accommodating cavity inside, and the waist and back fixing component (50) is respectively provided with a first through hole (501) and a mounting hole connected to the accommodating cavity on opposite sides, and a spring sheet is provided at the mounting hole. The third adjusting component (30) is provided with a plurality of second plug holes (302) and is placed in the accommodating cavity, and a connecting hole (303) is provided between adjacent second plug holes (302). The positioning component (70) passes through the first through hole (501) and is inserted into one of the plurality of second plug holes (302), and the spring sheet is used for the positioning component (70) to abut against.

10. The scoliosis fixation device according to claim 9, characterized in that: The positioning member (70) comprises a first end head (71), a second end head (72) and a column (73); the first end head (71) and the second end head (72) are respectively connected to two ends of the column (73); and the outer diameter of the first end head (71) and the outer diameter of the second end head (72) are both greater than the outer diameter of the column (73).

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