CN220327506U - Fixing device for positioning reference frame and positioning reference frame with fixing device - Google Patents

Abstract

The embodiment of the utility model provides a fixing device of a positioning reference frame and the positioning reference frame. The fixing device comprises a mounting frame, a locking connecting block and a locking screw, wherein the mounting frame is used for mounting and referencing a frame body, the locking connecting block is connected with the mounting frame, the locking connecting block is provided with a mounting hole, the locking screw comprises a screw cap part, a screw rod part and a screw head part which are sequentially connected, the screw rod part is penetrated and arranged on the mounting hole, the screw head of the locking screw can be abutted to the locking connecting block, and the screw head part can be penetrated and arranged in a femur or tibia joint part. Therefore, the fixing device for positioning the reference frame according to the embodiment of the utility model has the advantages of reducing the trauma to a patient caused by a surgery and avoiding the interference problem of the power handle during cutting.

Description

Fixing device for positioning reference frame and positioning reference frame with fixing device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a fixing device of a positioning reference frame and the positioning reference frame with the fixing device.

Background

The surgical navigation technology is a technology combining a medical image diagnosis technology, a spatial positioning technology, a three-dimensional image processing technology and a high-performance computer, and most of the current surgical navigation systems identify the positions of reflective balls installed on a navigation surgical tool through an infrared positioner so as to position the navigation surgical tool. The infrared positioning instrument hung above the operating table can track and position the operating tool and the anatomy structure of the patient, can determine the relative position relation between the operating tool and the patient, corresponds the patient image space to the actual patient space one by one, and simultaneously updates and displays the position of the operating tool at the patient image position in real time.

After registration is completed, the positioning reference frame installed on the anatomy of the patient cannot move, and any movement of the positioning reference frame relative to the original registration position is superimposed on the navigation positioning error, so that the navigation operation error is large or cannot be performed finally. In the related art, the positioning reference frame is connected with the femoral shaft and the tibial shaft through the spicules, specifically, referring to fig. 1, the spicules penetrate through the femoral shaft and the tibial shaft and are fixed on the clamp through the reference frame body, and in the operation process, the spicules penetrating out of the femoral shaft or the tibial shaft interfere with the cutting of the power handle, so that the operation space of an operator is affected.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, an embodiment of the present utility model proposes a fixing device for positioning a reference frame. The fixing device of the positioning reference frame has the advantages of reducing the trauma to the patient caused by the operation and avoiding the interference problem of the power handle during cutting.

The embodiment of the utility model also provides a positioning reference frame.

The fixing device of the positioning reference frame comprises a mounting frame, a locking connecting block and a locking screw.

The mounting frame is used for mounting a reference frame body for operation, the locking connecting block is connected with the mounting frame, the locking connecting block is provided with a mounting hole, the locking screw is provided with a plurality of locking screws, the locking screw is penetrated on the locking connecting block at intervals, each locking screw comprises a screw cap part, a screw rod part and a screw head part which are sequentially connected, the screw rod part is penetrated on the mounting hole, the screw head of the locking screw can be abutted on the locking connecting block, and the screw head part can be penetrated in a femur or tibia joint part. It will be appreciated that the locking screw is threadedly engaged with the femoral or tibial articular component.

According to the fixing device for the positioning reference frame, disclosed by the embodiment of the utility model, the locking connecting block and the joint are fixed through the locking screw, and the locking screw is connected with the femur or tibia joint part through the self thread structure, so that the fixing device has the advantage of convenience in disassembly. And meanwhile, the locking screw is adopted for fixation, and compared with the fixation in a way of adopting a bone needle (titanium needle), the head part of the locking screw is not exposed, so that the interference problem of the head part of the bone needle and the power handle during cutting is prevented when navigation is not needed temporarily in the operation process. Therefore, the advantage of convenience of operation is improved.

In addition, the locking screw is arranged in the operation incision of the femur or tibia joint part, so that the perforation and fixation of the femur shaft and the tibia shaft are avoided, and the trauma of the operation to a patient is further reduced.

Therefore, the fixing device for the positioning reference frame has the advantages of reducing the trauma to a patient caused by operation and avoiding the interference problem of the power handle during cutting.

In some embodiments, a portion of the plurality of locking screws is threaded into the mounting hole in a first direction, and another portion of the plurality of locking screws is threaded into the mounting hole obliquely to the first direction.

In some embodiments, a portion of the plurality of locking screws is arranged non-collinearly with the other portion of the plurality of locking screws.

In some embodiments, the angle between the other portion of the plurality of locking screws and the first direction is 10 ° to 30 °.

In some embodiments, the mounting bracket is rotatably disposed on the locking connection block.

In some embodiments, the fixing device of the positioning reference frame further comprises a fastening rod, the locking connection block is provided with a connection part, the mounting frame is provided with a first connection end part, the fastening rod penetrates through the connection part and the first connection end part, and the first connection end part is rotatably arranged on the connection part along the circumferential direction of the connection part.

In some embodiments, the connecting portion has a first anti-slip portion, the first connecting end portion has a second anti-slip portion, the fastening rod is threaded on the first and second anti-slip portions, and the fastening rod is threaded with one of the connecting portion and the first connecting end portion so as to urge the first anti-slip portion to be capable of abutting against the second anti-slip portion.

The positioning reference frame of the embodiment of the utility model can comprise a reference frame body and the fixing device of the positioning reference frame of any embodiment, wherein the reference frame body is arranged on the mounting frame.

In some embodiments, the positioning reference frame further comprises a locking member, the mounting frame comprises a first connecting rod, the first connecting rod is provided with a first connecting end and a second connecting end which are oppositely arranged along the extending direction of the first connecting rod, the reference frame body is connected with the second connecting end through the locking member, and the first connecting end is connected with the locking connecting block.

In some embodiments, the locking member has a locking hole, the second connecting end has a connecting hole and a limiting hole, a part of the reference frame body is penetrated into the limiting hole and the locking hole, and the locking member is movably arranged in the connecting hole along the extending direction of the connecting hole so as to enable the limiting hole to be partially misplaced with the locking hole, so that the reference frame body is fixed.

In some embodiments, the reference frame body includes a reference frame body and a second connecting rod, the reference frame body being detachably connected with the second connecting rod.

In some embodiments, the reference frame body includes a frame body, a reinforcing rib, and a plurality of light reflecting components, the second connecting rod is detachably connected with the frame body, the plurality of light reflecting components are arranged on the frame body at intervals, and the reinforcing rib is arranged between two adjacent light reflecting components.

In some embodiments, the reinforcing ribs are provided with lightening holes.

Drawings

Fig. 1 is a perspective view of a positioning reference frame in the related art.

Fig. 2 is a perspective view of a positioning reference frame according to an embodiment of the present utility model.

Fig. 3 is a front view of a positioning reference frame of an embodiment of the present utility model.

Fig. 4 is an exploded view of a positioning reference frame of an embodiment of the present utility model.

Fig. 5 is a front view of a fixture for positioning a reference frame according to an embodiment of the present utility model, wherein a part of the positions are in cross section.

Fig. 6 is a front view of a fixture for positioning a reference frame according to an embodiment of the present utility model.

FIG. 7 is a side view of a fixture for positioning a reference frame according to an embodiment of the utility model.

Reference numerals:

a positioning reference frame of the related art; a mounting frame 1'; locking the connection block 2'; spicules 3'; a reference frame clamp 4'; a reference frame 200';

the positioning reference frame 1000 of the embodiment of the present utility model;

a fixture 100 for positioning the reference frame; a reference frame 200;

a mounting frame 1; a first connecting rod 11; a first connection end 111; a second anti-slip part (not shown); a second fitting hole 1111;

a second connecting end 112; a connection hole 1121; a limiting hole 1122;

locking the connecting block 2; a mounting hole 21; a connection portion 22; a first fitting hole 221; a first anti-slip portion 222;

a locking screw 3; a screw cap portion 31; a screw shank 32; a nail head 33;

a fastening rod 4;

a locking member 5; tightening the nut 51; tensioning the slider 52; a locking hole 521;

a reference frame body 6; a frame 61; reinforcing ribs 62; a lightening hole 621; a light reflecting component 63;

a second connecting rod 7; y-shaped fork portion 71.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

The fixture 100 of the positioning reference frame and the positioning reference frame 1000 according to the embodiment of the present utility model are described below with reference to fig. 2 to 7.

The fixing device 100 of the positioning reference frame of the embodiment of the present utility model includes a mounting frame 1, a locking connection block 2, and a locking screw 3.

The mounting frame 1 is used for mounting a reference frame body 200 for operation, the locking connecting block 2 is connected with the mounting frame 1, the locking connecting block 2 is provided with a mounting hole 21, the locking screw 3 is provided with a plurality of locking screws 3, the plurality of locking screws 3 penetrate through the locking connecting block 2 at intervals, each locking screw 3 comprises a screw cap part 31, a screw rod part 32 and a screw head part 33 which are sequentially connected, the screw rod part 32 penetrates through the mounting hole 21, the nail head of the locking screw 3 can be abutted on the locking connecting block 2, and the nail head part 33 can be penetrated into a femur or tibia joint part. It will be appreciated that the locking screw 3 is threadedly engaged with the femoral or tibial joint component.

In the related art, the positioning reference frame comprises a mounting frame 1', a locking connection block 2', a reference frame clamp 4', a bone needle 3' and a reference frame 200', wherein the reference frame 200' is arranged on the mounting frame 1', the mounting frame 1' is connected with the locking connection block 2', the locking connection block 2' is fixed on a femoral shaft or a tibial shaft through the bone needle 3' and the reference frame clamp 4', and the bone needle 3' penetrates out of the femoral shaft or the tibial shaft.

According to the fixing device 100 for the positioning reference frame, the locking screw 3 is used for fixing the locking connecting block 2, and the locking screw 3 is connected with a femur or tibia joint part through a self thread structure, so that the fixing device has the advantage of convenience in disassembly. And the mode of adopting the locking screw 3 to fix the fixing device is compared with the mode of adopting the bone needle 3' (titanium needle), the nail head 33 of the locking screw 3 can not be exposed, and when navigation is not needed temporarily in the operation process, the interference problem between the nail head 33 of the bone needle and the power handle during cutting is prevented. Thus, the fixing device 100 for positioning the reference frame of the embodiment of the present utility model improves the convenience of the surgical operation.

Meanwhile, the locking screw 3 is arranged in an operation incision of the femur or tibia joint part, so that perforation and fixation of the femur shaft and the tibia shaft are avoided. Thus, the fixture 100 of the positioning reference frame of the embodiment of the present utility model has the effect of reducing the trauma to the patient from the procedure. In addition, by arranging a plurality of locking screws 3, the stability of the connection between the fixing device and the femur or tibia joint part can be improved, and the problems of deflection and shaking during the operation can be prevented. Therefore, the navigation positioning accuracy is improved, and the operation effect is improved.

Therefore, the fixing device 100 for positioning the reference frame according to the embodiment of the utility model has the advantages of reducing the trauma to the patient caused by the operation, avoiding the interference problem of the power handle during the cutting, and improving the operation effect.

Alternatively, the locking screw 3 may be a self-drilling, self-tapping locking screw 3. The problem of punching the joint of the bone before the operation is avoided.

As shown in fig. 2 to 5, a part of the plurality of locking screws 3 is inserted into the mounting hole 21 in a first direction (for example, an up-down direction shown in fig. 1, or an extending direction of the bone shaft), and another part of the plurality of locking screws 3 is inserted into the mounting hole 21 obliquely with respect to the first direction. It will be appreciated that another portion of the plurality of locking screws 3 is arranged non-parallel to a portion of the plurality of locking screws 3.

The fixing device 100 for positioning the reference frame according to the embodiment of the present utility model is formed by inserting another portion of the plurality of locking screws 3 into the mounting hole 21 obliquely with respect to the first direction. Thus, the problems of rotation and deflection of the fixing device can be prevented, and the stability of the fixing device in fixing is improved.

As shown in fig. 2 to 5, a portion of the plurality of locking screws 3 is arranged non-collinearly with another portion of the plurality of locking screws 3. Furthermore, the problem of rotation and deflection of the fixing device is further prevented, and the whole structure can share part of bone stress, so that the fixing stability of the fixing device is improved. Therefore, the navigation positioning precision and the operation effect can be improved.

The angle between the other part of the plurality of locking screws 3 and the first direction is 10 ° to 30 °. This can achieve both high stability and avoidance of interference with other locking screws 3.

Alternatively, the number of the locking screws 3 may be three, the three locking screws 3 are fixed at intervals at the femur or tibia joint, the three locking screws 3 are not arranged in line, and two of the locking screws 3 are symmetrically and obliquely penetrated at the femur or tibia joint part, and the included angle between the two locking screws 3 and the first direction may be 10 °, 12 °, 14 °, 16 °, 18 °, 19 °, 20 °, 22 °, 24 °, 26 °, 28 ° or 30 °.

As shown in fig. 2 and 4, the mount 1 is rotatably provided on the lock link block 2.

According to the fixing device 100 for the positioning reference frame, the mounting frame 1 is rotatably arranged on the locking connecting block 2, so that the reference frame body 200 can be conveniently adjusted before an operation, and the position of the reference frame body 200 can be adjusted according to the needs before the operation, and the applicability of the positioning reference frame 1000 and the operation convenience of doctors are improved.

As shown in fig. 2 and 4, the fixing device 100 of the positioning reference frame according to the embodiment of the present utility model further includes a fastening rod 4, the locking connection block 2 has a connection portion 22, the mounting frame 1 has a first connection end portion 111, the fastening rod 4 is disposed through the connection portion 22 and the first connection end portion 111, and the first connection end portion 111 is rotatably disposed on the connection portion 22 along a circumferential direction of the connection portion 22.

In the fixing device 100 for positioning a reference frame according to the embodiment of the present utility model, the first connecting end 111 is rotatably disposed on the connecting portion 22 along the circumferential direction of the connecting portion 22, so as to further improve the adjustment range of the position of the reference frame 200. Thereby, the applicability of the positioning reference frame 1000 and the convenience of doctor operation are further improved.

As shown in fig. 4, the connection portion 22 has a first anti-slip portion 222, the first connection end portion 111 has a second anti-slip portion (not shown), the fastening rod 4 is threaded on the first anti-slip portion 222 and the second anti-slip portion, and the fastening rod 4 is in threaded engagement with one of the connection portion 22 and the first connection end portion 111 so as to urge the first anti-slip portion 222 to abut against the second anti-slip portion, thereby locking the locking connection block 2 with the mounting frame 1.

According to the fixing device 100 for positioning reference frame in the embodiment of the utility model, the problem of shaking of the mounting frame 1 during operation can be further avoided through the first anti-slip part 222 of the connecting part 22 and the second anti-slip part of the first connecting end part 111. Therefore, the fixing device 100 of the positioning reference frame further improves the stability of the matching of the mounting frame 1 and the locking connecting block 2.

Optionally, scale marks may be provided on the first anti-slip portion 222 to indicate the angular position of the mounting frame 1, so as to facilitate in-situ repeated disassembly and assembly.

Alternatively, the lock link block 2 may have a first fitting hole 221, and the first anti-slip portion 222 is disposed adjacent to the first fitting hole 221. Correspondingly, a second matching hole 1111 is correspondingly formed in the mounting frame 1, the second anti-slip part is arranged close to the second matching hole 1111, and the first anti-slip part 222 is abutted with the second anti-slip part. That is, the lock link block 2 and the mounting bracket 1 may be fixed by the fastening rod 4 penetrating into the first and second fitting holes 221 and 1111. In other embodiments, the locking connection block 2 and the mounting frame 1 may be fixed by a pin or a bolt.

Specifically, the first anti-slip portion 222 may be anti-slip grooves or grooves, for example, as shown in fig. 4, the first anti-slip portion 222 is a plurality of first anti-slip grooves spaced apart along the circumference of the first fitting hole 221. The second anti-slip portion is a plurality of second anti-slip slots spaced apart along the circumference of the first fitting hole 221.

As shown in fig. 2 to 4, the positioning reference frame 1000 of the embodiment of the present utility model includes a reference frame body 200 and the fixing device 100 of the positioning reference frame in any of the above embodiments, the reference frame body 200 being disposed on the mounting frame 1. The positioning reference frame 1000 is a medical positioning reference frame 1000.

Therefore, the positioning reference frame 1000 of the embodiment of the utility model has the advantages of reducing the trauma to the patient caused by the operation and avoiding the interference problem of the power handle during cutting.

As shown in fig. 2 to 5, the positioning reference frame 1000 further includes a locking member 5, the mounting bracket 1 includes a first connection rod 11, the first connection rod 11 has a first connection end 111 (for example, a lower end shown in fig. 3) and a second connection end 112 (for example, an upper end shown in fig. 3) which are disposed opposite to each other in an extending direction thereof, and the reference frame body 200 is connected to the second connection end 112 through the locking member 5, and the first connection end 111 is connected to the locking connection block 2. It will be appreciated that the mounting 1 is rod-shaped.

According to the positioning reference frame 1000 of the embodiment of the utility model, the rod-shaped mounting frame 1 is in locking connection with the reference frame body 200 through the locking piece 5, so that the interference with tracking positioning of the infrared positioning instrument can be reduced as much as possible. Therefore, the positioning reference frame 1000 of the embodiment of the utility model is beneficial to improving the convenience of the installation of the positioning reference frame 1000 and improving the positioning accuracy of the navigation system.

As shown in fig. 2 to 5, the locker 5 has a locking hole 521, the second connection end 112 has a connection hole 1121 and a limiting hole 1122, a portion of the reference frame 200 is penetrated into the limiting hole 1122 and the locking hole 521, and the locker 5 is movably provided in the connection hole 1121 along an extension direction of the connection hole 1121 so as to partially misalign the limiting hole 1122 and the locking hole 521 to fix the reference frame 200.

The positioning reference frame 1000 of the embodiment of the present utility model fixes the reference frame body 200 by disposing the locking member 5 in the connecting hole 1121 so as to partially misalign the stopper hole 1122 with the locking hole 521 in the extending direction of the connecting hole 1121. Only the movement of the locking member 5 needs to be controlled to fix the reference frame 200 during operation, and the operation has the advantage of high operation convenience.

Alternatively, as shown in fig. 2 to 5, the locking member 5 includes a tightening nut 51 and a tightening slider 52, where the tightening nut 51 is in threaded engagement with the connection hole 1121 of the connection rod, the tightening slider 52 has a locking hole 521, the connection hole 1121 of the second connection end 112 and the limiting hole 1122 may be vertically disposed, the tightening slider 52 is disposed in the connection hole 1121 and is movable relative to the extending direction of the connection hole 1121, the reference frame 200 may be inserted into the locking hole 521 and the limiting hole 1122, and when the locking is required, the tightening nut 51 is driven to rotate, so that the limiting hole 1122 and the locking hole 521 are partially dislocated to fix the reference frame 200. The positioning reference frame 1000 of the embodiment of the utility model has the advantage of high operation convenience.

As shown in fig. 3, 5 to 7, the reference frame body 200 includes a reference frame body 6 and a second connection rod 7, and the reference frame body 6 is detachably connected with the second connection rod 7. Therefore, the positioning reference frame 1000 of the embodiment of the utility model has the advantage of high disassembly and assembly convenience, and is beneficial to the storage of the positioning reference frame 1000.

Alternatively, as shown in fig. 4, the second connecting rod 7 has a Y-shaped fork portion 71, and the Y-shaped fork portion 71 is hinged with the reference frame body 6. So that the support can be realized when in use, and the reference frame body 6 and the mounting frame 1 can be stacked when in storage, the positioning reference frame 1000 of the embodiment of the utility model has the advantage of small occupied space.

As shown in fig. 4, 6 and 7, the reference frame body 6 includes a frame body 61, a reinforcing rib 62 and a plurality of light reflecting members 63, the second connection rod 7 is detachably connected with the frame body 61, the plurality of light reflecting members 63 are disposed on the frame body 61 at a spaced apart distance, and the reinforcing rib 62 is disposed between two adjacent light reflecting members 63.

The positioning reference frame 1000 of the embodiment of the utility model can improve the structural strength of the reference frame body 200 by arranging the reinforcing rib 62 between the two adjacent reflecting components 63, and the positioning reference frame 1000 of the embodiment of the utility model has the advantage of high structural stability.

Optionally, the reinforcing ribs 62 are provided with lightening holes 621. The positioning reference frame 1000 of the embodiment of the present utility model can reduce the weight of the reference frame body 200 by providing the weight-reducing holes 621 on the reinforcing ribs 62. Thus, the positioning reference frame 1000 of the embodiment of the utility model has the advantage of improving the portability of the reference frame body 200.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (11)

1. A fixture for positioning a reference frame, comprising:

the mounting frame is used for mounting the reference frame body;

the locking connecting block is connected with the mounting frame and provided with a mounting hole; and

the locking screws are multiple, the locking screws penetrate through the locking connecting block at intervals, each locking screw comprises a screw cap part, a screw rod part and a screw head part which are sequentially connected, the screw rod part penetrates through the mounting hole, the screw head of each locking screw can be abutted to the locking connecting block, and the screw head part can be penetrated into the femur or tibia joint part.

2. The fixture of claim 1, wherein a portion of the plurality of locking screws extend through the mounting hole in a first direction, and another portion of the plurality of locking screws extend through the mounting hole obliquely to the first direction;

and/or a portion of the plurality of locking screws is arranged non-collinearly with the other portion of the plurality of locking screws.

3. The fixture of a positioning reference frame of claim 2, wherein the angle between the other portion of the plurality of locking screws and the first direction is 10 ° to 30 °.

4. A fixture for positioning reference frame according to any one of claims 1-3, characterized in that the mounting frame is rotatably arranged on the locking connection block.

5. The fixture of claim 4, further comprising a fastening rod, wherein the locking connection block has a connection portion, wherein the mounting bracket has a first connection end portion, wherein the fastening rod is disposed through the connection portion and the first connection end portion, and wherein the first connection end portion is rotatably disposed on the connection portion along a circumferential direction of the connection portion.

6. The positioning reference frame fixing device according to claim 5, wherein the connecting portion has a first anti-slip portion, the first connecting end portion has a second anti-slip portion, the fastening rod is threaded on the first anti-slip portion and the second anti-slip portion, and the fastening rod is in threaded engagement with one of the connecting portion and the first connecting end portion so as to urge the first anti-slip portion to abut against the second anti-slip portion.

7. A positioning reference frame, comprising:

reference frame and a fixture for positioning a reference frame according to any of claims 1-6, said reference frame being arranged on said mounting frame.

8. The positioning reference frame of claim 7, further comprising a locking member, wherein the mounting bracket comprises a first connecting rod having a first connecting end and a second connecting end disposed opposite to each other along an extending direction thereof, wherein the reference frame body is connected to the second connecting end by the locking member, and wherein the first connecting end is connected to the locking connecting block.

9. The positioning reference frame as set forth in claim 8, wherein the locking member has a locking hole, the second connecting end portion has a connecting hole and a limiting hole, a portion of the reference frame body is penetrated into the limiting hole and the locking hole, and the locking member is movably disposed in the connecting hole along an extending direction of the connecting hole so as to partially misalign the limiting hole and the locking hole to fix the reference frame body.

10. The positioning reference frame of claim 7, wherein the reference frame body comprises a reference frame body and a second connecting rod, the reference frame body being detachably connected to the second connecting rod.

11. The positioning reference frame of claim 10, wherein the reference frame body comprises a frame body, a reinforcing rib and a plurality of light reflecting components, the second connecting rod is detachably connected with the frame body, the plurality of light reflecting components are arranged on the frame body at intervals, and the reinforcing rib is arranged between two adjacent light reflecting components.