Connecting structure and surgical auxiliary positioning device

Abstract

The utility model provides a connecting structure and a surgical auxiliary positioning device. The connecting structure comprises a fixing assembly, a connecting assembly and a connecting assembly, wherein the fixing assembly is used for being connected with a surgical area; the first connecting assembly is provided with a first connecting part, and the first connecting assembly is detachably connected with the fixing assembly; the second connecting assembly and the first connecting assembly are arranged in a spaced mode, the second connecting assembly is provided with a second connecting part, and the second connecting assembly is detachably connected with the fixing assembly; the third connecting assembly is used for fixing the operation positioning device, the third connecting assembly is provided with a connecting part, the connecting part is connected with the first connecting component in a relatively rotatable mode, and the connecting part is connected with the second connecting component in a relatively rotatable mode; the third connecting assembly comprises a locking structure, and the locking structure is used for fixing the first connecting component and the second connecting component. The connecting structure solves the technical problem that in the prior art, the fixing mode of the tracer is not stable, so that the requirement for high-standard operation accuracy is difficult to meet.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical auxiliary positioning, in particular to a connection structure and a surgical auxiliary positioning device. Background Art

[0002] Orthopedic surgery under navigation or robotic systems usually uses optical reflective components in the tracer to mark patients and tools. In spinal surgery, the tracer is usually fixed with a connection device such as a spinous process clamp or a double needle fixator.

[0003] However, in the prior art, the tracer is usually fixed on the spinous process outside the cutting area, and there is a certain distance between the tracer and the cutting area, which has a certain influence on the positioning effect; at the same time, the existing spinous process clamp-type connection device is connected to the spinous process. The connection effect of this connection method at the lumbar position can meet the surgical needs, but the anatomical characteristics of the spinous processes of the thoracic and cervical vertebrae are shorter than those of the lumbar vertebrae. Using a spinous process clamp to hold it will result in a poor connection effect, easy loosening, and difficulty in meeting high standards of surgical accuracy.

[0004] Therefore, the prior art needs to be further developed. Utility Model Content

[0005] The purpose of the present invention is to overcome the above technical deficiencies and provide a connection structure and a surgical auxiliary positioning device to solve the technical problem that the fixing method of the tracer in the related art is unstable, making it difficult to achieve high standards of surgical accuracy.

[0006] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a connection structure is provided, including: a fixing component, the fixing component is used to connect to the operating area; a first connecting component, the first connecting component has a first connecting part, the first connecting component is detachably connected to the fixing component; a second connecting component, the second connecting component is arranged at an interval with the first connecting component, the second connecting component has a second connecting part, and the second connecting component is detachably connected to the fixing component; a third connecting component, the third connecting component is used to fix the surgical positioning device, the third connecting component has a connecting part, the connecting part is relatively rotatably connected to the first connecting part, and the connecting part is relatively rotatably connected to the second connecting part; the third connecting component includes a locking structure, the locking structure is used to fix the first connecting part and the second connecting part.

[0007] Furthermore, the third connecting component includes: a first connecting plate body, on which a first mounting groove and a second mounting groove are arranged at intervals, the first mounting groove is used to accommodate the first connecting component, and the second mounting groove is used to accommodate the second connecting component; a second connecting plate body, which is arranged at intervals from the first connecting plate body, and the connecting part is located between the second connecting plate body and the first connecting plate body, and the second connecting plate body is provided with a third mounting groove and a fourth mounting groove at intervals, the third mounting groove is used to accommodate the first connecting component, and the fourth mounting groove is used to accommodate the second connecting component; a locking structure is used to adjust the distance between the first connecting plate body and the second connecting plate body.

[0008] Furthermore, the locking structure includes a locking rod body and a hand-held part, the hand-held part is connected to the locking rod body; a fastening channel is provided on the first connecting plate body, and the fastening channel is used for the locking rod body to pass through; a fastening groove is provided on the second connecting plate body, and the fastening groove is connected to one end of the locking rod body away from the hand-held part.

[0009] Furthermore, a threaded structure is provided inside the fastening groove; and the end of the locking rod body away from the hand-held part is a screw.

[0010] Furthermore, the first connecting component has a first installation channel and a third connecting component, and the first installation channel runs through the third connecting component; the second connecting component has a second installation channel and a fourth connecting component, and the second installation channel runs through the fourth connecting component; the fixing component includes a first fixing component and a second fixing component, and the first fixing component is detachably arranged in the first installation channel; the second fixing component is detachably arranged in the second installation channel.

[0011] Furthermore, a third mounting channel is provided on the third connecting component, the axis of the third mounting channel intersects with the axis of the first mounting channel, a first clamping component is movably provided in the third mounting channel, and the first clamping component is used to fix the first fixing component in the first mounting channel; a fourth mounting channel is provided on the fourth connecting component, the axis of the fourth mounting channel intersects with the axis of the second mounting channel, a second clamping component is movably provided in the fourth mounting channel, and the second clamping component is used to fix the second fixing component in the second mounting channel.

[0012] Furthermore, a first limiting channel is provided on the third connecting component, and the first limiting channel passes through the third mounting channel; a second limiting channel is provided on the fourth connecting component, and the second limiting channel passes through the fourth mounting channel; a first limiting slider is provided on the first clamping component, and the first limiting slider is movably provided in the first limiting channel; a second limiting slider is provided on the second clamping component, and the second limiting slider is movably provided in the second limiting channel.

[0013] Furthermore, a first locking component is provided at one end of the first clamping component away from the first fixing component, the first locking component is movably provided in the third mounting channel, and the first locking component is used to lock the first clamping component and the first fixing component; a second locking component is provided at one end of the second clamping component away from the second fixing component, the second locking component is movably provided in the fourth mounting channel, and the second locking component is used to lock the second clamping component and the second fixing component.

[0014] Further, the first connecting component is spherical, and a thread structure is arranged on an outer surface of the first connecting component; and / or the second connecting component is spherical, and a thread structure is arranged on an outer surface of the second connecting component.

[0015] A surgical auxiliary positioning device comprises: a connecting structure; a tracer assembly, wherein the tracer assembly is connected to the connecting structure.

[0016] Beneficial effects:

[0017] 1. The connection structure of the utility model can make the tracer as close to the surgical cutting area as possible during surgery to improve the surgical accuracy.

[0018] 2. After the connection structure of the utility model is connected to the tracer during surgery, one end of the tracer tilts outwards and does not interfere with power tools or operating instruments, thereby avoiding affecting the surgical operation path.

[0019] 3. The connection range of the connection structure of the utility model can be adjusted, and can be adapted to vertebrae of two or more segments, thereby expanding the positioning range of the tracer and being adaptable to different surgical cutting ranges. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the connection structure adopted in the embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of a third connection component of the connection structure adopted in the embodiment of the utility model;

[0022] Figure 3 This is a structural schematic diagram of a first connecting plate body of a connecting structure adopted in an embodiment of the utility model;

[0023] Figure 4 This is a structural schematic diagram of a second connecting plate body of the connecting structure adopted in an embodiment of the utility model;

[0024] Figure 5 It is a structural schematic diagram of a first connection component of a connection structure provided in an embodiment of the utility model;

[0025] Figure 6It is a cross-sectional view of the second connection component of the connection structure provided in the embodiment of the utility model.

[0026] The above drawings include the following reference numerals:

[0027] 1. Fixing assembly; 11. First fixing member; 12. Second fixing member; 2. First connecting assembly; 21. First connecting member; 22. First installation channel; 23. Third connecting member; 231. Third installation channel; 2311. First pressing member; 2312. First limiting slider; 232. First limiting channel; 24. First locking member; 3. Second connecting assembly; 31. Second connecting member; 32. Second installation channel; 33. Fourth connecting member; 331. Fourth installation channel Channel; 3311, second clamping member; 3312, second limiting slider; 332, second limiting channel; 34, second locking member; 4, third connecting assembly; 40, connecting portion; 41, first connecting plate body; 411, first mounting groove; 412, second mounting groove; 413, fastening channel; 42, second connecting plate body; 421, third mounting groove; 422, fourth mounting groove; 423, fastening groove; 43, locking structure; 431, locking rod body; 432, hand-held portion. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0029] According to an embodiment of the present utility model, a connection structure is provided. Figures 1 to 6 , including: a fixing component 1, the fixing component 1 is used to connect to the operating area; a first connecting component 2, the first connecting component 2 has a first connecting part 21, and the first connecting component 2 is detachably connected to the fixing component 1; a second connecting component 3, the second connecting component 3 is arranged at an interval with the first connecting component 2, the second connecting component 3 has a second connecting part 31, and the second connecting component 3 is detachably connected to the fixing component 1; a third connecting component 4, the third connecting component 4 is used to fix the surgical positioning device, the third connecting component 4 has a connecting portion 40, the connecting portion 40 is relatively rotatably connected to the first connecting component 21, and the connecting portion 40 is relatively rotatably connected to the second connecting component 31; the third connecting component 4 includes a locking structure 43, and the locking structure 43 is used to fix the first connecting component 21 and the second connecting component 31.

[0030] With the above arrangement, the fixing component 1 is driven into the surgical area, the first connecting component 2 and the second connecting component 3 are sleeved on the outside of the fixing component 1, and the positions of the first connecting component 2 and the second connecting component 3 are fixed after being adjusted to appropriate positions, and the position of the third connecting component 4 is adjusted after being connected to the first connecting component 2 and the second connecting component 3. After the adjustment is completed, the locking structure 43 locks and fixes the third connecting component 4 with the first connecting component 21 and the second connecting component 31. Finally, the surgical positioning device is connected to the third connecting component 4 to complete the fixation of the surgical positioning device, and the locking structure 43 is released. The positions of the first connecting component 21 and the second connecting component 31 in the connecting part 40 can be adjusted according to the driven position of the fixing component 1. After being adjusted to appropriate positions, they are locked by the locking structure 43 to make the connection more stable, thereby solving the technical problem that the unstable fixing method of the tracer in the related art makes it difficult to meet the high standard of surgical accuracy requirements.

[0031] In the connection structure of this embodiment, see Figures 2 to 4 The third connecting component 4 includes: a first connecting plate body 41, on which a first mounting groove 411 and a second mounting groove 412 are arranged at intervals, the first mounting groove 411 is used to accommodate the first connecting component 21, and the second mounting groove 412 is used to accommodate the second connecting component 31; a second connecting plate body 42, the second connecting plate body 42 is arranged at intervals from the first connecting plate body 41, and the connecting portion 40 is located between the second connecting plate body 42 and the first connecting plate body 41, and the second connecting plate body 42 is provided with a third mounting groove 421 and a fourth mounting groove 422 at intervals, the third mounting groove 421 is used to accommodate the first connecting component 21, and the fourth mounting groove 422 is used to accommodate the second connecting component 31; a locking structure 43 is used to adjust the distance between the first connecting plate body 41 and the second connecting plate body 42. In this way, the first mounting groove 411 and the third mounting groove 421 are relatively arranged to surround the connecting portion 40 for installing the first connecting component 21, and the second mounting groove 412 and the fourth mounting groove 422 are relatively arranged to surround the connecting portion 40 for installing the second connecting component 31. The first connecting component 21 and the second connecting component 31 rotate in the connecting portion 40 to adjust the positions of the first connecting component 2 and the second connecting component 3, so that the positional relationship between the first connecting component 2 and the second connecting component 3 can be adjusted to adapt to different positions of the fixing component 1. When the first connecting component 2 and the second connecting component 3 are adjusted to a suitable position, the locking structure 43 reduces the distance between the first connecting plate body 41 and the second connecting plate body 42, so that the first connecting plate body 41 and the second connecting plate body 42 clamp and fix the first connecting component 21 and the second connecting component 31.

[0032] Preferably, the shapes of the first mounting groove 411 and the third mounting groove 421 match the first connecting component 21 , and the shapes of the second mounting groove 412 and the fourth mounting groove 422 match the second connecting component 31 .

[0033] In the connection structure of this embodiment, see Figure 1 to Figure 2 The locking structure 43 includes a locking rod body 431 and a hand-held part 432, and the hand-held part 432 is connected to the locking rod body 431; a fastening channel 413 is provided on the first connecting plate body 41, and the fastening channel 413 is used for the locking rod body 431 to pass through; a fastening groove 423 is provided on the second connecting plate body 42, and the fastening groove 423 is connected to the end of the locking rod body 431 away from the hand-held part 432. When the distance between the first connecting plate body 41 and the second connecting plate body 42 needs to be adjusted, the hand-held portion 432 is rotated to drive the locking rod body 431 to rotate in the fastening groove 423. When the distance between the first connecting plate body 41 and the second connecting plate body 42 needs to be reduced, the hand-held portion 432 is rotated downward until the hand-held portion 432 abuts against the first connecting plate body 41, and the hand-held portion 432 is continued to be rotated downward, and the hand-held portion 432 drives the first connecting plate body 41 to move in the direction approaching the second connecting plate body 42; when the distance between the first connecting plate body 41 and the second connecting plate body 42 needs to be increased, the hand-held portion 432 is rotated upward until the hand-held portion 432 is separated from the first connecting plate body 41, and the first connecting plate body 41 is pushed upward to increase the distance between the first connecting plate body 41 and the second connecting plate body 42.

[0034] In the connection structure of this embodiment, see Figure 2 , Figure 4 The inner side of the fastening groove 423 is provided with a threaded structure; the end of the locking rod 431 away from the hand-held portion 432 is a screw. In this way, the position of the locking rod 431 in the fastening groove 423 can be adjusted by rotating the hand-held portion 432, thereby adjusting the distance between the first connecting plate 41 and the second connecting plate 42.

[0035] In the connection structure of this embodiment, see Figure 5The first connecting component 2 has a first installation channel 22 and a third connecting component 23, and the first installation channel 22 is set through the third connecting component 23; the second connecting component 3 has a second installation channel 32 and a fourth connecting component 33, and the second installation channel 32 is set through the fourth connecting component 33; the fixing component 1 includes a first fixing component 11 and a second fixing component 12, and the first fixing component 11 is detachably set in the first installation channel 22; the second fixing component 12 is detachably set in the second installation channel 32. In this way, the first fixing component 11 is inserted in the first installation channel 22, and the second fixing component 12 is inserted in the second installation channel 32. The position of the first fixing component 11 in the first installation channel 22 can be adjusted, and the position of the second fixing component 12 in the second installation channel 32 can also be adjusted. During surgery, the first connecting component 2 and the second connecting component 3 can be adjusted to a suitable position, and then fixedly connected with the first fixing component 11 and the second fixing component 12 to complete the installation of the tracer.

[0036] Preferably, the first installation channel 22 has a protective tine at one end away from the third connecting part 23. When the first connecting component 2 is connected to the first fixing component 11, the protective tine needs to be inserted into the cortex to ensure that the connection position between the first connecting component 2 and the first fixing component 11 meets the surgical standards.

[0037] In the connection structure of this embodiment, see Figure 5 , Figure 6 The third connecting component 23 is provided with a third mounting channel 231, the axis of the third mounting channel 231 intersects with the axis of the first mounting channel 22, and a first clamping component 2311 is movably provided in the third mounting channel 231, and the first clamping component 2311 is used to fix the first fixing component 11 in the first mounting channel 22; the fourth connecting component 33 is provided with a fourth mounting channel 331, the axis of the fourth mounting channel 331 intersects with the axis of the second mounting channel 32, and a second clamping component 3311 is movably provided in the fourth mounting channel 331, and the second clamping component 3311 is used to fix the second fixing component 12 in the second mounting channel 32. In this way, the first clamping component 2311 moves in the third installation channel 231. When the first connecting component 2 is adjusted to a suitable position, the first clamping component 2311 is moved toward the direction close to the first fixing component 11, so that it presses the first fixing component 11 in the first installation channel 22 to fix the first fixing component 11 and the first connecting component 2. The fixed connection method of the second connecting component 3 and the second fixing component 12 is the same as above.

[0038] Preferably, the end of the first clamping part 2311 close to the first fixing part 11 has a groove matching the first fixing part 11, and the groove depth of the first clamping part 2311 is smaller than the radial length of the first fixing part. In this way, the contact area between the first clamping part 2311 and the first fixing part 11 is larger, and the first fixing part 11 and the first connecting component 2 can be better fixedly connected.

[0039] In the connection structure of this embodiment, see Figure 5 , Figure 6 The third connecting part 23 is provided with a first limiting channel 232, and the first limiting channel 232 passes through the third installation channel 231; the fourth connecting part 33 is provided with a second limiting channel 332, and the second limiting channel 332 passes through the fourth installation channel 331; the first clamping part 2311 is provided with a first limiting slider 2312, and the first limiting slider 2312 is movably arranged in the first limiting channel 232; the second clamping part 3311 is provided with a second limiting slider 3312, and the second limiting slider 3312 is movably arranged in the second limiting channel 332. In this way, the first limiting slider 2312 set on the first clamping component 2311 moves in the first limiting channel 232. When the first fixing component 11 is taken out from the first installation channel 22, the first limiting slider 2312 slides to the lower end of the first limiting channel 232 under the influence of its own gravity, so that the first clamping component 2311 will not fall out of the third installation channel 231. The second limiting slider 3312 also limits the second clamping component 3311 in the fourth installation channel 331.

[0040] In the connection structure of this embodiment, see Figure 5 The first clamping member 2311 is provided with a first locking member 24 at one end away from the first fixing member 11. The first locking member 24 is movably arranged in the third installation channel 231. The first locking member 24 is used to lock the first clamping member 2311 and the first fixing member 11. The second clamping member 3311 is provided with a second locking member 34 at one end away from the second fixing member 12. The second locking member 34 is movably arranged in the fourth installation channel 331. The second locking member 34 is used to lock the second clamping member 3311 and the second fixing member 12. In this way, when it is necessary to fix the first fixing member 11 and the first connecting component 2, the first locking member 24 is moved toward the direction close to the first fixing member 11 to push the first clamping member 2311 and the first fixing member 11 to be mortgaged, so that the first fixing member 11 and the first connecting component 2 are locked. The method of locking the second fixing member 12 and the second connecting component 3 is the same as above.

[0041] Preferably, a thread is provided on the inner side of one end of the third installation channel 231 away from the first fixing component 11 , and the first locking component 24 is a bolt structure, and the position of the first locking component 24 in the third installation channel 231 can be adjusted by rotating the first locking component 24 .

[0042] In specific practice, the first locking component 24 is driven by the knob to tighten the first clamping component 2311, so that the first clamping component 2311 slides along the third installation channel 231, and the first limiting slider 2312 slides along the first limiting channel 232, and finally the first fixing component 11 is clamped to achieve tightening.

[0043] In the connection structure of this embodiment, see Figure 1 , the first connecting member 21 is spherical, and a thread structure is provided on the outer surface of the first connecting member 21; and / or, the second connecting member 31 is spherical, and a thread structure is provided on the outer surface of the second connecting member 31. In this way, the spherical shape of the first connecting member 21 can make the first connecting member 21 rotate more smoothly in the connecting portion 40, and the thread structure on the surface can increase the friction between the first connecting member 21 and the connecting portion 40, so that after the locking structure 43 is locked, the first connecting plate body 41, the first connecting member 21 and the second connecting plate body 42 will not rotate relative to each other, so as to improve the stability of the connecting structure.

[0044] Specifically, the first fixing component 11 and the second fixing component 12 are Kirschner wires.

[0045] In specific practice, the first connecting component 2 and the second connecting component 3 are connected to the third connecting component through a ball hinge, and can move freely within a certain range to adapt to the connection of Kirschner wires of different distances and angles.

[0046] This embodiment provides a surgical auxiliary positioning device, including: a connection structure such as any one of the items; a tracer assembly, and the tracer assembly is connected to the connection structure. In this way, the tracer assembly is connected to the third connection assembly 4, and the position of the tracer can be adjusted by adjusting the positional relationship between the fixing assembly 1 and the first connection assembly 2 and the second connection assembly 3, and the positional relationship between the first connection assembly 2 and the second connection assembly 3 and the third connection assembly 4, so that the tracer can be in a position close to the surgical cutting area without affecting the surgical operation path. At the same time, the locking structure 43 can lock and fix the first connection assembly 2 and the second connection assembly 3 with the third connection assembly 4, achieving the effect of flexibly and stably fixing the tracer.

[0047] In specific practice, the first connecting component 2 and the second connecting component 3 are connected to the Kirschner wire inserted into the pedicle, and then the first locking component 24 and the second locking component 34 are tightened to fix the positions of the first connecting component 2 and the second connecting component 3 on the Kirschner wire, and the tracer component is fixed to the structure of the third connecting component 4, and the position of the tracer is fixed by tightening the locking structure 43. According to the surgical requirements, the tracer can be placed on the left or right side of the vertebral body by adjusting the connecting structure, and can also connect adjacent stage vertebrae or cross-segment vertebrae.

[0048] Specifically, the use process of the connection structure includes:

[0049] The pedicle is inserted with a Kirschner wire;

[0050] Insert the first connecting component 2 and the second connecting component 3 into the Kirschner wire, adjust the position and tighten the first locking component 24 and the second locking component 34 to fix them, wherein the lower ends of the first connecting component 2 and the second connecting component 3 have protective tines to ensure that the first connecting component 2 and the second connecting component 3 are inserted into the cortex;

[0051] The patient tracer is connected to the third connecting component 4, and after adjusting the position of the tracer, the third connecting component 4 is fixedly connected to the first connecting component 2 and the second connecting component 3 through the locking structure 43 to achieve the installation of the patient tracer.

[0052] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0053] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0054] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0055] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0056] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A connection structure, characterized in that: include: A fixing assembly (1), the fixing assembly (1) being used for connection with a surgical area; A first connecting component (2), the first connecting component (2) having a first connecting part (21), the first connecting component (2) being detachably connected to the fixing component (1); a second connecting component (3), the second connecting component (3) being arranged at a distance from the first connecting component (2), the second connecting component (3) having a second connecting part (31), and the second connecting component (3) being detachably connected to the fixing component (1); A third connecting component (4), the third connecting component (4) is used to fix the surgical positioning device, the third connecting component (4) has a connecting portion (40), the connecting portion (40) is relatively rotatably connected to the first connecting component (21), and the connecting portion (40) is relatively rotatably connected to the second connecting component (31); the third connecting component (4) includes a locking structure (43), and the locking structure (43) is used to fix the first connecting component (21) and the second connecting component (31).

2. The connection structure according to claim 1, characterized in that: The third connecting component (4) comprises: A first connecting plate body (41), wherein a first mounting groove (411) and a second mounting groove (412) are arranged at intervals on the first connecting plate body (41), wherein the first mounting groove (411) is used to accommodate the first connecting component (21), and the second mounting groove (412) is used to accommodate the second connecting component (31); a second connecting plate body (42), the second connecting plate body (42) and the first connecting plate body (41) are arranged at intervals, the connecting portion (40) is located between the second connecting plate body (42) and the first connecting plate body (41), a third mounting groove (421) and a fourth mounting groove (422) are arranged at intervals on the second connecting plate body (42), the third mounting groove (421) is used to accommodate the first connecting component (21), and the fourth mounting groove (422) is used to accommodate the second connecting component (31); The locking structure (43) is used to adjust the distance between the first connecting plate body (41) and the second connecting plate body (42).

3. The connection structure according to claim 2, characterized in that: The locking structure (43) comprises a locking rod body (431) and a hand-held portion (432), and the hand-held portion (432) is connected to the locking rod body (431); The first connecting plate body (41) is provided with a fastening channel (413), and the fastening channel (413) is used for the locking rod body (431) to pass through; The second connecting plate body (42) is provided with a fastening groove (423), and the fastening groove (423) is connected to an end of the locking rod body (431) away from the handheld part (432).

4. The connection structure according to claim 3, characterized in that: A threaded structure is provided inside the fastening groove (423); and one end of the locking rod body (431) away from the hand-held portion (432) is a screw.

5. The connection structure according to claim 1, characterized in that: The first connecting component (2) comprises a first installation channel (22) and a third connecting component (23), wherein the first installation channel (22) is arranged to penetrate the third connecting component (23); The second connecting component (3) comprises a second installation channel (32) and a fourth connecting component (33), wherein the second installation channel (32) is arranged to penetrate the fourth connecting component (33); The fixing assembly (1) comprises a first fixing component (11) and a second fixing component (12); the first fixing component (11) is detachably arranged in the first installation channel (22); and the second fixing component (12) is detachably arranged in the second installation channel (32).

6. The connection structure according to claim 5, characterized in that: The third connecting component (23) is provided with a third installation channel (231), the axis of the third installation channel (231) intersects with the axis of the first installation channel (22), and a first pressing component (2311) is movably provided in the third installation channel (231), and the first pressing component (2311) is used to fix the first fixing component (11) in the first installation channel (22); The fourth connecting component (33) is provided with a fourth installation channel (331), the axis of the fourth installation channel (331) intersects with the axis of the second installation channel (32), and a second clamping component (3311) is movably provided in the fourth installation channel (331), and the second clamping component (3311) is used to fix the second fixing component (12) in the second installation channel (32).

7. The connection structure according to claim 6, characterized in that: The third connecting component (23) is provided with a first limiting channel (232), and the first limiting channel (232) passes through the third installation channel (231); The fourth connecting component (33) is provided with a second limiting channel (332), and the second limiting channel (332) passes through the fourth installation channel (331); The first pressing component (2311) is provided with a first limiting slider (2312), and the first limiting slider (2312) is movably arranged in the first limiting channel (232); The second pressing component (3311) is provided with a second limiting slider (3312), and the second limiting slider (3312) is movably arranged in the second limiting channel (332).

8. The connection structure according to claim 7, characterized in that: A first locking component (24) is provided at one end of the first pressing component (2311) away from the first fixing component (11); the first locking component (24) is movably arranged in the third installation channel (231); the first locking component (24) is used to lock the first pressing component (2311) and the first fixing component (11); A second locking component (34) is provided at one end of the second pressing component (3311) away from the second fixing component (12); the second locking component (34) is movably arranged in the fourth installation channel (331); and the second locking component (34) is used for locking the second pressing component (3311) and the second fixing component (12).

9. The connection structure according to claim 5, characterized in that: The first connecting component (21) is spherical, and a thread structure is provided on the outer surface of the first connecting component (21); and / or, The second connecting component (31) is spherical, and a thread structure is provided on the outer surface of the second connecting component (31).

10. A surgical auxiliary positioning device, characterized in that: include: The connection structure according to any one of claims 1 to 9; A tracer assembly is connected to the connection structure.

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