Auxiliary fixing device for medical operation

Abstract

The invention discloses an auxiliary fixing device for a medical operation, and relates to the technical field of bone operation fixation, the auxiliary fixing device comprises a bottom fixing assembly and a bone needle, and further comprises a top fixing assembly; the connecting part is used for connecting the top fixing assembly and the bottom fixing assembly, the connecting part comprises a middle fixing assembly, the middle fixing assembly and the top fixing assembly are fixedly connected through a plurality of fixing lead screws, and the bottom fixing assembly and the middle fixing assembly are connected through an adjusting assembly. The device has the advantages that after bone needles are fixed, the bone needles can be vertically and slightly corrected, the bone needles can also be horizontally and slightly corrected, in this way, the bone growth accuracy can be effectively improved, the later rehabilitation efficiency is improved, meanwhile, the bone needles are fixed in an omni-directional rotating mode, and the bone needle fixing precision is improved. In this way, the spicule can be locked after being fixed, the requirement for the inserting direction of the spicule is low, and operation is easy and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of bone surgery fixation, and in particular to an auxiliary fixation device used in medical surgery. Background Art

[0002] An external fixator is a medical surgical auxiliary fixation device used for fractures or bone injuries. It mainly maintains the stability of bones by fixing external metal rods and brackets. It is often used in cases of complex fractures, infections or bone transplants to help bones heal.

[0003] The existing bone external fixator has high cost, complicated operation and high adjustment difficulty. It requires professional technicians to install and is inconvenient to use. Therefore, the announcement number CN107260275B discloses a fracture external fixator, which includes a fixed bracket, a connecting rod, a needle holder connector and a bone needle. The fixed bracket includes a first fixed bracket and a second fixed bracket. The fixed bracket is provided with a plurality of first through holes. The two ends of the connecting rod are detachably connected to the first fixed bracket and the second fixed bracket respectively. The two ends of the needle holder connector are detachably connected to the bone needle and the fixed bracket respectively. The needle holder connector includes a main body, a first telescopic assembly, a second telescopic assembly and an end cap. One end of the main body is a hollow circular tube. The hollow circular tube is axially provided with four evenly distributed guide grooves, and the end of the hollow circular tube is provided with an internal thread.

[0004] The fixing frame requires only a small number of parts to be adjusted, is quick and convenient to install, and has precise position fixation. Generally, no auxiliary tools such as wrenches are required during the disassembly and assembly process, which reduces the requirements on the doctor's operating skill level and labor intensity, thereby achieving the purpose of reducing surgical risks and improving surgical success rates.

[0005] However, when the fixing frame is used, the bone needle is fixed by clamping it on the needle holder connector. Since the skeleton connector can only be adjusted in the vertical direction and rotated 360 degrees in the horizontal direction, for the bone needle inserted in the vertical direction and tilted, the bottom of the square through hole on the needle holder connector is designed to be horizontal, and the bottom of the tightening screw is designed to be horizontal. The bone needle will be inserted into the square through hole at an angle, and the tightening screw cannot effectively fix the bone needle, and there is a possibility of loosening. If fixation is required, turning the tightening screw with excessive torque will cause the bone needle to deform or even break.

[0006] In addition, a retractable connecting rod is used to adjust the distance between the upper and lower closing buckles for pulling bone correction. In the middle stage of correction, not only vertical bone closure correction but also bone deviation correction is required. However, the fixation frame cannot complete the correction operation of bone deviation and has certain limitations in use.

[0007] Therefore, a novel auxiliary fixation device for medical surgery can be used to solve the shortcomings of the prior art. Summary of the invention

[0008] The purpose of the present invention is to solve the problems in the prior art of high requirements on the orientation of bone needle insertion and limitations in correction, and to propose an auxiliary fixation device for medical surgery.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] An auxiliary fixation device for medical surgery, comprising a bottom fixation component and a bone pin, and also comprising a top fixation component;

[0011] A connecting portion, used to connect the top fixing assembly and the bottom fixing assembly, the connecting portion includes a middle fixing assembly, the middle fixing assembly and the top fixing assembly are fixedly connected via a plurality of fixing screws, and the bottom fixing assembly and the middle fixing assembly are connected via an adjusting assembly;

[0012] The bone needle fixing part is installed on the top fixing component and the bottom fixing component. A plurality of supporting components are installed on the top fixing component and the bottom fixing component. The bone needle is fixed between two matching supporting components.

[0013] Preferably, the top fixing assembly includes a top fixing plate 1, on which a top fixing plate 2 is fixedly mounted by a bolt 1, a plurality of circular holes are formed on the top fixing plate 2, each of the fixing screw rods passes through a corresponding circular hole, and each fixing screw rod is fixed to the top fixing plate 1 and the top fixing plate 2 by two nuts 1.

[0014] Preferably, the bottom fixing assembly includes two bottom fixing plates 1 and two bottom fixing plates 2, and the two bottom fixing plates 1 and the two bottom fixing plates 2 are fixedly connected by bolts 2.

[0015] Preferably, the central fixing assembly includes a central fixing plate 1 and a central fixing plate 2, the central fixing plate 1 and the central fixing plate 2 are fixedly connected by a fixing nut, an anti-slip mechanism is installed between the central fixing plate 1 and the fixing nut, annular grooves are provided on the inner circles of the central fixing plate 1 and the central fixing plate 2, a locking ring is rotatably installed in the annular groove, and a rotating mechanism is installed between the locking ring and the central fixing plate 2.

[0016] Preferably, the locking ring includes a fixing ring 1 and a fixing ring 2, the fixing ring 1 and the fixing ring 2 are both semicircular in design, and the diameters of the fixing ring 1 and the fixing ring 2 are the same.

[0017] Preferably, the anti-slip mechanism includes two connecting blocks fixedly mounted on a middle fixed plate, each of the two connecting blocks having an anti-slip screw rod rotatably mounted thereon, each of the two connecting blocks having a slider slidably mounted thereon, each of the two sliders having a threaded hole matched with the corresponding anti-slip screw rod, each of the two anti-slip screw rods passes through the corresponding threaded holes, and each of the two connecting blocks having a locking threaded groove matched with the corresponding fixing nut.

[0018] Preferably, the rotating mechanism includes a semicircular gear ring 1 fixedly mounted on a fixing ring 1 and a semicircular gear ring 2 fixedly mounted on a fixing ring 2, the semicircular gear ring 1 and the semicircular gear ring 2 form a circular gear ring, an adjusting rod is rotatably mounted on the middle fixing plate 2, and a gear matching the circular gear ring is fixedly mounted on the adjusting rod.

[0019] Preferably, the adjustment assembly comprises a connecting rod fixedly mounted on the connecting block, a connecting joint is rotatably and slidably mounted on the connecting rod, and the connecting joint is connected to the bottom fixed assembly via an adjusting screw.

[0020] Preferably, the supporting assembly includes a connecting bolt, a storage cylinder is fixedly mounted on the connecting bolt, an adjusting screw is slidably mounted on the storage cylinder, a threaded sleeve that cooperates with the adjusting screw is rotatably mounted on the storage cylinder via a rotating ring, a connecting disk is fixedly mounted on the adjusting screw, a rotating disk is rotatably mounted on the connecting disk via a bearing, a locking mechanism is installed between the rotating disk and the connecting disk, an internally threaded cylinder is rotatably mounted on the rotating disk, a resist plate is fixedly mounted on the internally threaded cylinder, a threaded rod is threadably rotatably mounted on the internally threaded cylinder, and a gasket that cooperates with the resist plate is rotatably mounted on the threaded rod.

[0021] Preferably, the locking mechanism includes a fixing plate fixedly mounted on the connecting disk, a pressing nut fixedly mounted on the fixing plate, a pressing screw matched with the rotating disk being threadably rotatably mounted on the pressing nut, and a through hole matched with the pressing screw being opened on the fixing plate.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. When the device is used for bone fixation, the upper part of the bone fracture is fixed by the top fixing component, bone pins and middle fixing component, and then the lower part of the bone fracture is fixed by the bottom fixing component. The upper part is fixed by double fixing, which has higher stability, greater load-bearing force and better comfort for patients.

[0024] 2. When the device is fixing bones, the spacing between the middle fixing component and the bottom fixing component can be freely adjusted by setting an adjustment component, so as to perform vertical correction and fix the bone needles at the best position of the bones. At the same time, a support component is used to fix the bone needles, and an adjustment component is used to drive the bottom fixing component to rotate a certain angle. It is suitable for bone needles with different inclinations, has higher firmness, and expands the scope of use.

[0025] 3. When the device is used for bone fixation, the position of the slider can be changed by setting an anti-slip screw and a slider. Since the position of the fixing nut is fixed and the slider can move within a certain range, the slider and the fixing nut tend to be misaligned as the adjusting screw rotates, which increases the pressure between the fixing nut and the slider, thereby stabilizing the fixing nut.

[0026] 4. When the device is fixing bones, the gears and the circular gear rings are provided to drive the fixing rings 1 and 2 to rotate in the slide groove, so that the joints of the fixing rings 1 and 2 are misaligned with the joints of the middle fixing plate 1 and 2. In this way, when the locking of the nut 2 is lost, the middle fixing plate 1 and the middle fixing plate 2 will not be disconnected, which plays a role in enhancing stability. At the same time, after the fixation is completed, the gear is rotated to drive the circular gear ring to rotate, thereby changing the positions of the fixing rings 1 and 2, so as to adjust the horizontal angle and perform horizontal correction operations.

[0027] In summary, the present invention can not only perform vertical micro-correction on the bone needle after the bone needle fixation is completed, but also perform horizontal micro-correction, which can effectively improve the accuracy of bone growth and improve the efficiency of later rehabilitation. At the same time, the bone needle is fixed in an all-round rotation manner, so that the bone needle can be locked after the bone needle fixation is completed. The requirements for the insertion orientation of the bone needle are low, and the operation is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0029] Figure 1 This is a schematic structural diagram of an auxiliary fixation device for medical surgery proposed by the present invention;

[0030] Figure 2 for Figure 1 Detailed schematic diagram of the structure after removing the supporting components;

[0031] Figure 3 for Figure 2 Detailed schematic diagram of the exploded structure;

[0032] Figure 4 for Figure 3 A detailed schematic diagram of the enlarged structure of the middle top fixing assembly and the fixing screw rod;

[0033] Figure 5 for Figure 3 An enlarged schematic detailed diagram of the structure of the middle fixed assembly;

[0034] Figure 6 for Figure 5 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0035] Figure 7 for Figure 6 Detailed schematic diagram of the exploded structure;

[0036] Figure 8 for Figure 2 A schematic detailed diagram of the enlarged structure of the middle adjustment component;

[0037] Fig. 9 for Figure 2 A detailed diagram of the enlarged structure of the middle adjustment component and the bottom fixing component;

[0038] Fig.10 for Fig. 9 Detailed schematic diagram of the exploded structure of the middle bottom fixing piece 1 and the bottom fixing piece 2;

[0039] Fig.11 for Figure 5 An enlarged schematic diagram of the structure after the middle adjustment rod is rotated to a certain angle;

[0040] Fig.12 for Figure 1 An enlarged structural schematic detail diagram of the middle support assembly;

[0041] Fig.13 for Fig.12 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0042] Fig.14 for Fig.13 Detailed schematic diagram of the exploded structure;

[0043] Fig.15 for Fig.14 An enlarged structural schematic detail diagram of the middle connecting plate part.

[0044] In the figure: 1 bottom fixing component, 2 middle fixing component, 3 top fixing component, 4 supporting component, 5 bone needle, 6 adjustment component, 7 adjustment screw, 8 top fixing plate 1, 9 top fixing plate 2, 10 fixing screw, 11 middle fixing plate 1, 12 middle fixing plate 2, 13 adjustment rod, 14 connecting block, 15 connecting rod, 16 connecting joint, 17 fixing ring 1, 18 fixing ring 2, 19 anti-slip screw, 20 slider, 21 fixing nut, 22 bottom fixing plate 1, 23 bottom fixing plate 2, 24 gear, 25 connecting bolt, 26 storage tube, 27 rotating ring, 28 threaded sleeve, 29 rotating disc, 30 internal threaded tube, 31 push plate, 32 threaded rod, 33 adjustment screw, 34 connecting disc, 35 bearing, 36 gasket, 37 fixing plate, 38 pressing nut, 39 pressing screw. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Example 1: Reference Figure 1-Figure 11 , an auxiliary fixation device for medical surgery, comprising a bottom fixation component 1 and a bone pin 5, and also comprising a top fixation component 3;

[0047] The connecting part is used to connect the top fixing component 3 and the bottom fixing component 1. The connecting part includes a middle fixing component 2. The middle fixing component 2 and the top fixing component 3 are fixedly connected by multiple fixing screws 10, and the bottom fixing component 1 and the middle fixing component 2 are connected by an adjustment component 6.

[0048] One end of the fixing screw rod 10 close to the middle fixing assembly 2 is fixedly connected to the middle fixing assembly 2 , and the fixation at this point is non-adjustable, which can improve the stability of the fixing screw rod 10 .

[0049] The top fixing assembly 3 includes a top fixing plate 8, on which a top fixing plate 9 is fixedly installed by a bolt 1. A plurality of circular holes are provided on the top fixing plate 9, and each fixing screw rod 10 passes through a corresponding circular hole. Each fixing screw rod 10 is fixed to the top fixing plate 8 and the top fixing plate 9 by two nuts 1.

[0050] The corresponding circular hole can be selected according to the orientation of the bone needle 5 to install the fixed screw 10 to prevent the fixed screw 10 from causing obstruction with the bone needle 5; the fixed screw 10 is fixed with two nuts 1 at one end close to the top fixing plate 2 9, and the two nuts 1 are respectively located on the upper and lower sides of the top fixing plate 2 9 (refer to Figure 4 ), first adjust the nut three located at the bottom of the top fixing plate 29 so that multiple nuts three are on the same horizontal line. If they are not on the same horizontal line, they can be adjusted later (taking the nut three located at the bottom of the top fixing plate 29 and at the top as the standard, when the top fixing plate 29 is against the nut three, due to the limiting effect of the fixed screw 10, the top fixing plate 8 is in a horizontal state. At this time, other nuts three will not be against the top fixing plate 29. At this time, other nuts three can be rotated to make the nut three against the top fixing plate 29. At this time, all nuts three are at the same horizontal height), then cover the nut three at the top so that the top fixing plate 29 is clamped between two nuts three.

[0051] The bottom fixing assembly 1 includes two bottom fixing plates 1 22 and two bottom fixing plates 23 . The two bottom fixing plates 1 22 and the two bottom fixing plates 23 are fixedly connected by bolts 2 .

[0052] The purpose of using the double-layer bottom fixing plate 1 22 and the bottom fixing plate 2 23 is to keep the upper and lower weights consistent, which can ensure the stability of the bone fracture. At the same time, when the patient lifts his arms or legs, there will be no strong tension and pain, and the comfort will be higher.

[0053] The middle fixing assembly 2 includes a middle fixing piece 11 and a middle fixing piece 2 12. The middle fixing piece 11 and the middle fixing piece 2 12 are fixedly connected by a fixing nut 21. An anti-slip mechanism is installed between the middle fixing piece 11 and the fixing nut 21.

[0054] The anti-skid mechanism includes two connecting blocks 14 fixedly mounted on a middle fixed plate 11, each of the two connecting blocks 14 is rotatably mounted with an anti-skid screw rod 19, each of the two connecting blocks 14 is slidably mounted with a slider 20, each of the two sliders 20 is provided with a threaded hole matching the corresponding anti-skid screw rod 19, each of the two anti-skid screw rods 19 passes through the corresponding threaded holes, and each of the two connecting blocks 14 is provided with a locking threaded groove matching the corresponding fixing nut 21.

[0055] Since the position of the fixing nut 21 is fixed and the slider 20 can move within a certain range, as the anti-slip screw 19 rotates, the slider 20 and the fixing nut 21 tend to be misaligned, which increases the pressure between the fixing nut 21 and the slider 20, thereby stabilizing the fixing nut 21.

[0056] An annular groove is provided on the inner ring of the middle fixing plate 11 and the middle fixing plate 2 12, and a locking ring is rotatably installed in the annular groove. The locking ring includes a fixing ring 17 and a fixing ring 18. The fixing ring 17 and the fixing ring 18 are both semicircular in design, and the diameters of the fixing ring 17 and the fixing ring 2 18 are the same;

[0057] A rotating mechanism is installed between the locking ring and the middle fixed plate 12, and the rotating mechanism includes a semicircular gear ring 1 fixedly installed on the fixed ring 17 and a semicircular gear ring 2 fixedly installed on the fixed ring 18. The semicircular gear ring 1 and the semicircular gear ring 2 form a circular gear ring. An adjusting rod 13 is rotatably installed on the middle fixed plate 12, and a gear 24 matching the circular gear ring is fixedly installed on the adjusting rod 13.

[0058] Rotate the gear 24 to drive the fixing ring 17 and the fixing ring 2 18 to rotate in the slide groove, so that the joint of the fixing ring 17 and the fixing ring 2 18 is misaligned with the joint of the middle fixing plate 1 11 and the middle fixing plate 2 12. In this way, when the locking of the nut 2 is lost, the middle fixing plate 1 11 and the middle fixing plate 2 12 will not be disconnected, which plays a role in enhancing stability. At the same time, after the fixation is completed, the gear 24 is driven to rotate the toothed circular ring, thereby changing the position of the fixing ring 17 and the fixing ring 2 18, so as to adjust the horizontal angle and perform horizontal correction operations.

[0059] The adjusting assembly 6 comprises a connecting rod 15 fixedly mounted on the connecting block 14 , on which a connecting joint 16 is rotatably and slidably mounted, and the connecting joint 16 is connected to the bottom fixing assembly 1 via an adjusting screw rod 7 .

[0060] Since the connecting joint 16 can rotate, the bottom fixing assembly 1 can be tilted at a certain angle, such as Fig. 9 As shown, the position of the adjusting screw rod 7 can be changed (the circular hole where the adjusting screw rod 7 is fixed can be changed) to change the butt joint 16, which can be used for fixing the knee bend and has a wider range of uses.

[0061] Embodiment 2: This embodiment is different from the embodiment 1 in that: Figure 1 , Figure 12-Figure 15 The bone needle 5 fixing part is installed on the top fixing component 3 and the bottom fixing component 1. A plurality of supporting components 4 are installed on the top fixing component 3 and the bottom fixing component 1. The bone needle 5 is fixed between two matching supporting components 4.

[0062] The supporting assembly 4 includes a connecting bolt 25, on which a storage cylinder 26 is fixedly mounted, on which an adjusting screw 33 is slidably mounted, on which a threaded sleeve 28 matching the adjusting screw 33 is rotatably mounted via a rotating ring 27, on which a connecting disk 34 is fixedly mounted, on which a rotating disk 29 is rotatably mounted via a bearing 35, a locking mechanism is mounted between the rotating disk 29 and the connecting disk 34, on which an internal threaded cylinder 30 is rotatably mounted, on which a resisting plate 31 is fixedly mounted, on which a threaded rod 32 is threadably rotatably mounted, and on which a gasket 36 matching the resisting plate 31 is rotatably mounted.

[0063] After the bone needle 5 is passed through the bone, the bottom fixing component 3, the middle fixing component 2 and the top fixing component 3 are spliced, and then the installation position of the support component 4 is selected according to the position of the bone needle 5, and then the threaded sleeve 28 is rotated. Under the action of the threaded sleeve 28, the adjusting screw 33 is made to slide in the storage tube 26 to change the height of the threaded rod 32, and then the rotating disk 29 is rotated to make the rotatable plane of the internal threaded tube 30 and the bone needle 5 be located in the same plane, and then the angle of the internal threaded tube 30 is rotated so that the internal threaded tube 30 and the bone needle 5 are kept on the same line, and then the internal threaded tube 30 is locked (the locking here is achieved by the existing rotation locking structure, which is a non-innovative technical point here, so it will not be elaborated in detail), and finally the gasket 36 is moved by rotating the threaded rod 32, and the bone needle 5 is pressed and fixed by the gasket 36 and the abutment plate 31.

[0064] The locking mechanism includes a fixing plate 37 fixedly mounted on the connecting plate 34, on which a pressing nut 38 is fixedly mounted, on which a pressing screw 39 cooperating with the rotating disc 29 is threadedly rotatably mounted, and a through hole cooperating with the pressing screw 39 is opened on the fixing plate 37.

[0065] In order to prevent the rotating disk 29 from rotating freely during the fixing process, it is necessary to rotate the pressure screw 39. Under the action of the pressure nut 38, the pressure screw 39 will be pressed against the rotating disk 29. At this time, the rotating disk 29 will have a certain damping effect and will not rotate freely. After the bone needle 5 is fixed, the pressure screw 39 is tightened again to lock the rotating disk 29.

[0066] The specific operation steps of this device are as follows:

[0067] First, the angle of the bottom fixing component 1 is selected according to the position of the bone, and then the distance between the bottom fixing component 1 and the middle fixing component 2 is adjusted according to the position of the bone needle 5. Then, the top fixing component 3, the middle fixing component 2 and the bottom fixing component 1 are assembled. After the assembly is completed, the bone needle 5 is fixed by the support component 4.

[0068] After the bone needle 5 on the bone is locked, the bone is observed by X-ray again, and then a decision is made whether to adjust it based on the bone docking condition. Once upper and lower cracks appear in the bone, the bone cracks need to be adjusted by adjusting the adjustment component 6 to correct it in the vertical direction. If the bone is misaligned, it is necessary to rotate the gear 24 to drive the circular gear ring to rotate so as to correct it in the horizontal direction.

[0069] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An auxiliary fixation device for medical surgery, comprising a bottom fixation component (1) and a bone pin (5), It is characterized in that Also includes a top fixing assembly (3); A connecting portion, used to connect the top fixing component (3) and the bottom fixing component (1), the connecting portion comprising a middle fixing component (2), the middle fixing component (2) and the top fixing component (3) being fixedly connected via a plurality of fixing screws (10), and the bottom fixing component (1) and the middle fixing component (2) being connected via an adjusting component (6); The bone needle (5) fixing part is installed on the top fixing component (3) and the bottom fixing component (1), and a plurality of supporting components (4) are installed on the top fixing component (3) and the bottom fixing component (1), and the bone needle (5) is fixed between two matching supporting components (4).

2. The auxiliary fixation device for medical surgery according to claim 1, It is characterized in that The top fixing assembly (3) comprises a top fixing plate (8), on which a top fixing plate (9) is fixedly mounted by means of a bolt (1), a plurality of circular holes are formed on the top fixing plate (9), each of the fixing screw rods (10) passes through a corresponding circular hole, and each fixing screw rod (10) is fixed to the top fixing plate (8) and the top fixing plate (9) by means of two nuts (1).

3. The auxiliary fixation device for medical surgery according to claim 1, It is characterized in that The bottom fixing assembly (1) comprises two bottom fixing plates (22) and two bottom fixing plates (23), and the two bottom fixing plates (22) and the two bottom fixing plates (23) are fixedly connected by bolts (2).

4. The auxiliary fixation device for medical surgery according to claim 1, It is characterized in that The middle fixing assembly (2) comprises a middle fixing plate 1 (11) and a middle fixing plate 2 (12), wherein the middle fixing plate 1 (11) and the middle fixing plate 2 (12) are fixedly connected via a fixing nut (21), an anti-slip mechanism is installed between the middle fixing plate 1 (11) and the fixing nut (21), an annular groove is provided on the inner ring of the middle fixing plate 1 (11) and the middle fixing plate 2 (12), a locking ring is rotatably installed in the annular groove, and a rotating mechanism is installed between the locking ring and the middle fixing plate 2 (12).

5. The auxiliary fixation device for medical surgery according to claim 4, It is characterized in that The locking ring comprises a fixing ring 1 (17) and a fixing ring 2 (18). The fixing ring 1 (17) and the fixing ring 2 (18) are both semicircular in design, and the diameters of the fixing ring 1 (17) and the fixing ring 2 (18) are the same.

6. The auxiliary fixation device for medical surgery according to claim 4, It is characterized in that The anti-skid mechanism comprises two connecting blocks (14) fixedly mounted on a middle fixed plate (11), an anti-skid screw rod (19) being rotatably mounted on each of the two connecting blocks (14), a slider (20) being slidably mounted on each of the two connecting blocks (14), threaded holes matching the corresponding anti-skid screw rods (19) being provided on each of the two sliders (20), the two anti-skid screw rods (19) passing through the corresponding threaded holes, and locking thread grooves matching the corresponding fixing nuts (21) being provided on each of the two connecting blocks (14).

7. The auxiliary fixation device for medical surgery according to claim 4, It is characterized in that The rotating mechanism comprises a semicircular gear ring 1 fixedly mounted on a fixing ring 1 (17) and a semicircular gear ring 2 fixedly mounted on a fixing ring 2 (18), wherein the semicircular gear ring 1 and the semicircular gear ring 2 form a circular gear ring, an adjusting rod (13) is rotatably mounted on the middle fixing plate 2 (12), and a gear (24) matching the circular gear ring is fixedly mounted on the adjusting rod (13).

8. The auxiliary fixation device for medical surgery according to claim 6, It is characterized in that The adjustment assembly (6) comprises a connecting rod (15) fixedly mounted on a connecting block (14), a connecting joint (16) being rotatably and slidably mounted on the connecting rod (15), and the connecting joint (16) is connected to the bottom fixing assembly (1) via an adjustment screw rod (7).

9. The auxiliary fixation device for medical surgery according to claim 1, It is characterized in that The support assembly (4) comprises a connecting bolt (25), a receiving cylinder (26) is fixedly mounted on the connecting bolt (25), an adjusting screw (33) is slidably mounted on the receiving cylinder (26), a threaded sleeve (28) which matches the adjusting screw (33) is rotatably mounted on the receiving cylinder (26) via a rotating ring (27), a connecting disk (34) is fixedly mounted on the adjusting screw (33), a rotating disk (29) is rotatably mounted on the connecting disk (34) via a bearing (35), a locking mechanism is mounted between the rotating disk (29) and the connecting disk (34), an internal threaded cylinder (30) is rotatably mounted on the rotating disk (29), a resisting plate (31) is fixedly mounted on the internal threaded cylinder (30), a threaded rod (32) is threadedly rotatably mounted on the internal threaded cylinder (30), and a gasket (36) which matches the resisting plate (31) is rotatably mounted on the threaded rod (32).

10. The auxiliary fixation device for medical surgery according to claim 9, It is characterized in that The locking mechanism comprises a fixing plate (37) fixedly mounted on the connecting plate (34), a pressing nut (38) fixedly mounted on the fixing plate (37), a pressing screw (39) matched with the rotating disc (29) being threadably mounted on the pressing nut (38), and a through hole matched with the pressing screw (39) being formed on the fixing plate (37).

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