Holding device for bone fracture reduction of orthopedic robot

Abstract

The utility model discloses a holding device for fracture reduction of an orthopaedic robot, which relates to the technical field of fracture reduction holding devices and comprises a mechanical arm main body provided with an interface connecting piece and used for being connected with a mechanical arm, and a plurality of connecting shafts are arranged on the periphery of the mechanical arm main body; the connecting rod is connected with the connecting shaft through the universal adjusting assembly, the universal adjusting assembly comprises a cylindrical tooth pressing block and a locking shaft, the locking shaft penetrates through the cylindrical tooth pressing block and is connected with an end face tooth pressing block and an end face fluted disc, the connecting shaft is clamped and fixed through the two pressing blocks, and the end face fluted disc is connected with the connecting rod; the cylindrical tooth pressing block, the end face tooth pressing block and the end face tooth disc can rotate. The adjustable connecting rod assembly is connected with the connecting rod and comprises a holding rod and a knob, and when the knob is loosened, the holding rod can also rotate; the holding device can be connected with a plurality of holding needles, the orientation of the holding needles can be adjusted respectively, the stability of the holding needles is kept after adjustment is completed, and the operation convenience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fracture reduction gripping devices, and more specifically, relates to a gripping device for fracture reduction of an orthopedic robot. Background Art

[0002] During use, a fracture reduction robot generally needs to connect the end of a robotic arm to a human bone through a gripping device. For minimally invasive surgery, several gripping needles need to be screwed into the bone, and then the gripping device is connected to the gripping needles. Currently, there is no such gripping device that is maturely used on the market. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a gripping device for fracture reduction of an orthopedic robot, which addresses the deficiencies of the existing technology. This gripping device can be connected to multiple gripping needles, can respectively adjust the orientations of the gripping needles, and can maintain the stability of the gripping needles after the adjustment is completed, thereby improving the convenience of surgical operations.

[0004] To achieve the above purpose, the utility model provides a gripping device for fracture reduction of an orthopedic robot, comprising:

[0005] A robotic arm main body, on one side of which there is an interface connecting piece for connecting to the robotic arm, and a plurality of connecting shafts are evenly distributed on the outer periphery of the robotic arm main body;

[0006] A universal adjustment assembly that connects a connecting rod to each of the connecting shafts. The universal adjustment assembly includes a cylindrical gear pressing block and a locking shaft. The locking shaft penetrates through the cylindrical gear pressing block and is connected to an end face gear pressing block and an end face gear disc. The cylindrical gear pressing block and the end face gear pressing block clamp and fix the connecting shaft. The end face gear disc is connected to one end of the connecting rod. When the locking shaft is loosened, the cylindrical gear pressing block and the end face gear pressing block rotate around the axis of the connecting shaft, and the end face gear disc rotates around the axis of the locking shaft;

[0007] An adjustable connecting rod assembly, which is connected to the other end of the connecting rod. The adjustable connecting rod assembly includes a gripping rod and a knob. When the knob is loosened, the gripping rod can rotate around the other end of the connecting rod.

[0008] Optionally, semi-cylindrical holes are respectively formed on the sides of the cylindrical tooth pressing block and the end face tooth pressing block close to each other. Cylindrical teeth are provided on the inner walls of the semi-cylindrical holes. The cylindrical tooth pressing block and the end face tooth pressing block are fixedly connected by a guide pin. The two semi-cylindrical holes are arranged to surround the outer periphery of the connecting shaft. The cylindrical tooth pressing block and the end face tooth pressing block are also respectively provided with shaft holes. The locking shaft passes through the shaft holes. A first spring is arranged between the shaft holes and the semi-cylindrical holes. The two ends of the first spring respectively abut against the cylindrical tooth pressing block and the end face tooth pressing block.

[0009] Optionally, the guide pin is welded to the cylindrical tooth pressing block and is in clearance fit with the mounting hole on the end face tooth pressing block.

[0010] Optionally, a first serrated surface is provided on the end face of the end face tooth pressing block that fits the end face tooth disc. A second spring is also arranged between the end face tooth pressing block and the end face tooth disc. The locking shaft passes through the communication hole of the end face tooth disc. The communication hole is in threaded fit with the locking shaft. A threaded hole is provided on the outer periphery of the end face tooth disc, and the threaded hole is connected to the connecting rod.

[0011] Optionally, square heads for cooperating with a wrench are respectively arranged at both ends of the locking shaft.

[0012] Optionally, the adjustable connecting rod assembly further includes a first tooth disc and a second tooth disc. The first tooth disc is connected to the connecting rod, and the second tooth disc is connected to the holding rod. The knob sequentially passes through the first tooth disc and the second tooth disc through a rotating shaft. The rotating shaft is in threaded connection with the second tooth disc.

[0013] Optionally, a second serrated surface is provided on the mutually fitting surfaces of the first tooth disc and the second tooth disc. A third spring is also arranged between the first tooth disc and the second tooth disc. When the rotating shaft is unscrewed, the third spring can separate the first tooth disc and the second tooth disc.

[0014] Optionally, the knob and the rotating shaft are fixed by a riveting process.

[0015] Optionally, a serrated surface is provided on the outer peripheral surface of the connecting shaft.

[0016] Optionally, the locking shaft and the connecting shaft are perpendicular to each other.

[0017] The present utility model provides a gripping device for fracture reduction of an orthopedic robot, and its beneficial effects are as follows: A universal adjustment component is provided in the gripping device. By screwing the locking shaft, it is controlled whether the cylindrical gear engages with the serrated surface of the connecting shaft. When the locking shaft is loosened, under the action of the first spring, the cylindrical gear block and the end face gear block can be separated and do not form clamping fixation on the connecting shaft. In this way, the universal adjustment component can drive the connecting rod to rotate around the axis of the connecting shaft. At the same time, the first serrated surface between the belly surface gear block and the end face gear disc is separated from each other, so that the end face gear disc can drive the connecting rod to rotate around the axis of the locking shaft, enabling the connecting rod to rotate freely in two directions; In addition, by cooperating with the adjustable connecting rod component and the universal adjustment component, when the knob drives the rotating shaft to separate the two gear discs from each other, the gripping rod can rotate and adjust around the axis of the rotating shaft. In this way, on the basis of the two-direction adjustment of the connecting rod, the gripping rod can be freely adjusted in one more direction. And when the locking shaft and the knob are tightened, the fixed positions of the gripping rod and the connecting rod can be ensured to be stable, ensuring that the position and direction of the gripping needle on the bone remain unchanged and always playing a role in reducing the affected bone.

[0018] Other features and advantages of the present utility model will be described in detail in the following specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By describing the exemplary embodiments of the present utility model in more detail in conjunction with the drawings, the above and other objects, features, and advantages of the present utility model will become more obvious. Among them, in the exemplary embodiments of the present utility model, the same reference numerals generally represent the same components.

[0020] Figure 1 Fig. shows the usage state diagram of a gripping device for fracture reduction of an orthopedic robot during surgery according to an embodiment of the present utility model.

[0021] Figure 2 Fig. shows the structural schematic diagram of a gripping device for fracture reduction of an orthopedic robot according to an embodiment of the present utility model.

[0022] Figure 3 Fig. shows the structural schematic diagram of a universal adjustment component according to an embodiment of the present utility model.

[0023] Figure 4 Fig. shows the connection schematic diagram between the robotic arm main body and the universal adjustment component according to an embodiment of the present utility model.

[0024] Figure 5 Fig. shows the structural schematic diagram of an adjustable connecting rod component according to an embodiment of the present utility model.

[0025] DESCRIPTION OF THE REFERENCE NUMERALS:

[0026] 1. Robotic arm main body; 2. Interface connecting piece; 3. Connecting shaft; 4. Universal adjustment component; 5. Link rod; 6. Cylindrical tooth pressing block; 7. Locking shaft; 8. End face tooth pressing block; 9. End face tooth disc; 10. Adjustable link rod component; 11. Holding rod; 12. Knob; 13. Semi-cylindrical hole; 14. Guide pin; 15. First serrated surface; 16. Second spring; 17. Square head; 18. First tooth disc; 19. Second tooth disc; 20. Rotating shaft; 21. Second serrated surface; 22. Third spring; 23. First spring. Specific implementation manner

[0027] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0028] The present invention provides a holding device for fracture reduction of an orthopedic robot, comprising:

[0029] A robotic arm main body, with an interface connecting piece provided on one side, the interface connecting piece being used for connecting with the robotic arm, and a plurality of connecting shafts being evenly distributed on the outer periphery of the robotic arm main body;

[0030] A universal adjustment component, connecting the link rod with each connecting shaft, the universal adjustment component comprising a cylindrical tooth pressing block and a locking shaft, the locking shaft passing through the cylindrical tooth pressing block and connecting with the end face tooth pressing block and the end face tooth disc, the cylindrical tooth pressing block and the end face tooth pressing block clamping and fixing the connecting shaft, the end face tooth disc being connected with one end of the link rod, when the locking shaft is loosened, the cylindrical tooth pressing block and the end face tooth pressing block rotate around the axis of the connecting shaft, and the end face tooth disc rotates around the axis of the locking shaft;

[0031] An adjustable link rod component, connected with the other end of the link rod, the adjustable link rod component comprising a holding rod and a knob, when the knob is loosened, the holding rod can rotate around the other end of the link rod.

[0032] Specifically, the holding device is connected to the robotic arm through an interface connector on one side of the robotic arm main body. A plurality of connecting shafts are evenly arranged on the outer periphery of the robotic arm main body. Each connecting shaft is connected with a universal adjustment component. The connection and fixation strength between the universal adjustment component and the connecting shaft can be controlled by the locking shaft in the universal adjustment component. In addition, a connecting rod is also connected to the universal adjustment component. When the locking shaft is loosened, the end face gear disc can also rotate around the axis direction of the locking shaft, so that the end face gear disc can drive the connecting rod to rotate. At the other end of the connecting rod, an adjustable connecting rod component is also connected. In addition to driving the connecting rod to rotate through the universal adjustment component, the holding rod on the adjustable connecting rod component can also rotate around the axis of the rotating shaft by rotating the knob. In this way, the holding rod can be rotated and adjusted in three directions to meet the adjustment requirements of holding the needle, facilitating the fixation of the holding needle to the affected bone from different angles and realizing the reduction and traction of the bone.

[0033] Optionally, semi-cylindrical holes are respectively formed on the sides of the cylindrical tooth pressing block and the end face tooth pressing block that are close to each other. Cylindrical teeth are arranged on the inner walls of the semi-cylindrical holes. The cylindrical tooth pressing block and the end face tooth pressing block are fixedly connected through a guide pin. The two semi-cylindrical holes are arranged to surround the outer periphery of the connecting shaft. The cylindrical tooth pressing block and the end face tooth pressing block are also respectively provided with shaft holes. The locking shaft penetrates through the shaft holes. A first spring is arranged between the shaft holes and the semi-cylindrical holes. The two ends of the first spring respectively abut against the cylindrical tooth pressing block and the end face tooth pressing block.

[0034] Specifically, in the universal adjustment component, the outer shapes of the cylindrical tooth pressing block and the end face tooth pressing block are the same. Semi-cylindrical holes are respectively formed at one ends of the two pressing blocks. The two semi-cylindrical holes can be closed together to surround and fit the outer surface of the connecting shaft. One ends of the two pressing blocks are also fixed through a guide pin. A locking shaft penetrates through the other ends of the two pressing blocks. When the locking shaft is rotated to make the two pressing blocks fit tightly, the cylindrical teeth on the semi-cylindrical holes can bite on the connecting shaft, and the two pressing blocks cannot rotate relative to the connecting shaft. When the locking shaft is rotated to make the two pressing blocks loosen from each other, the first spring makes the two pressing blocks separate from each other. In this way, the semi-cylindrical holes are no longer in contact with the outer surface of the connecting shaft, and the two pressing blocks can rotate freely relative to the connecting shaft.

[0035] Optionally, the guide pin is welded to the cylindrical tooth pressing block and is in clearance fit with the mounting hole on the end face tooth pressing block.

[0036] Optionally, a first serrated surface is arranged on the end face of the end face tooth pressing block that is in contact with the end face gear disc. A second spring is also arranged between the end face tooth pressing block and the end face gear disc. The locking shaft penetrates through the communication hole of the end face gear disc. The communication hole is in threaded fit with the locking shaft. A threaded hole is arranged on the outer periphery of the end face gear disc, and the threaded hole is connected with the connecting rod.

[0037] Specifically, an end face gear disc is further provided in the universal adjustment assembly. The end face gear disc is arranged on the side of the end face gear pressing block away from the cylindrical gear pressing block. Between the end face gear disc and the end face gear pressing block, not only a first serrated surface is provided on the joint surface, but also a second spring is provided between the two. When the locking shaft is loosened, the second spring separates the end face gear disc from the end face gear pressing block, and the first serrated surface between the two no longer engages and fixes, so that the end face gear disc can rotate relative to the end face gear pressing block; when the locking shaft is tightened, the second spring is compressed, and the first serrated surface between the two realizes engagement and fixation, so that the relative positions of the end face gear disc and the end face gear pressing block are locked. The locking shaft passes through the other end of the cylindrical gear pressing block, the other end of the end face gear pressing block, and the end face gear disc in sequence. Since the locking shaft is threadedly connected to the end face gear disc, when the locking shaft rotates clockwise, the outer edge of the end of the locking shaft will squeeze the two pressing blocks towards the end face gear disc, and the three structures are mutually squeezed. In this way, the cylindrical gear engages with the connecting shaft, the first serrated surfaces engage with each other, and the direction of the connecting rod is locked. When the locking shaft rotates counterclockwise, the outer edge of the end of the locking shaft will apply a force to the two pressing blocks. Under the action of the first spring and the second spring, the engaging surfaces of the three structures are separated from each other. In this way, the connecting rod is rotated around the axis of the locking shaft by the end face gear disc, and the two pressing blocks drive the connecting rod to rotate around the axis of the connecting shaft, so that the connecting rod can be freely adjusted in two directions.

[0038] Optionally, square heads for cooperating with a wrench are respectively provided at both ends of the locking shaft.

[0039] Specifically, in order to facilitate the rotation of the locking shaft, square heads are provided at both ends of the locking shaft. A tool such as a wrench can be used to quickly adjust the holding device. After the holding needle is adjusted, the locking shaft is tightened by the wrench, so that the universal adjustment assembly can be fixed more firmly and stably.

[0040] Optionally, the adjustable connecting rod assembly further includes a first gear disc and a second gear disc. The first gear disc is connected to the connecting rod, the second gear disc is connected to the holding rod, and the knob sequentially passes through the first gear disc and the second gear disc through a rotating shaft. The rotating shaft is threadedly connected to the second gear disc.

[0041] Optionally, a second serrated surface is provided on the joint surface between the first gear disc and the second gear disc, and a third spring is further provided between the first gear disc and the second gear disc. When the rotating shaft is unscrewed, the third spring can separate the first gear disc from the second gear disc.

[0042] Specifically, the adjustable link assembly connects the link with the holding rod. Under the action of the adjustable link assembly, the holding rod can also be rotationally adjusted, enabling a larger adjustment angle for the holding needle, which facilitates the doctor's use during the reduction operation. Two mutually fitting gear discs are provided in the adjustable link assembly, and the two gear discs are connected in series by a rotating shaft. When the rotating shaft is screwed clockwise, the second serrated surfaces of the two gear discs engage with each other, and thus the holding rod cannot be rotationally adjusted. When the rotating shaft is screwed counterclockwise, under the action of the third spring, the second serrated surfaces of the two gear discs move away from each other, and the second gear disc can drive the holding rod to perform rotational adjustment.

[0043] Optionally, the knob and the rotating shaft are fixed by a riveting process.

[0044] Optionally, a serrated surface is provided on the outer peripheral surface of the connecting shaft.

[0045] Specifically, a serrated surface is correspondingly provided on the connecting shaft, which increases the biting force between the connecting shaft and the cylindrical teeth of the cylindrical tooth pressing block and the end face tooth pressing block, ensuring that when the locking shaft is tightened, the universal adjustment assembly does not rotate relative to the connecting shaft. Moreover, raised portions are provided at both ends of the serrated surface of the connecting shaft, which limits the edges of the two pressing blocks through the raised portions, ensuring the stable connection position of the universal adjustment assembly in the axial direction of the connecting shaft.

[0046] Optionally, the locking shaft and the connecting shaft are perpendicular to each other.

[0047] Specifically, under the drive of the universal adjustment assembly, the rotational adjustment range of the link can be made larger. Coupled with the adjustment angle of the adjustable link assembly, the holding rod can be adjusted in any direction.

[0048] Embodiment

[0049] As Figures 1 to 5 shown, the present utility model provides a holding device for fracture reduction of an orthopedic robot, comprising:

[0050] A robotic arm main body 1, with an interface connector 2 provided on one side. The interface connector 2 is used to connect with the robotic arm, and a plurality of connecting shafts 3 are evenly distributed on the outer periphery of the robotic arm main body 1;

[0051] A universal adjustment assembly 4, which connects the link 5 with each connecting shaft 3. The universal adjustment assembly 4 includes a cylindrical tooth pressing block 6 and a locking shaft 7. The locking shaft 7 passes through the cylindrical tooth pressing block 6 and is connected to an end face tooth pressing block 8 and an end face gear disc 9. The cylindrical tooth pressing block 6 and the end face tooth pressing block 8 clamp and fix the connecting shaft 3, and the end face gear disc 9 is connected to one end of the link 5. When the locking shaft 7 is loosened, the cylindrical tooth pressing block 6 and the end face tooth pressing block 8 rotate around the axis of the connecting shaft 3, and the end face gear disc 9 rotates around the axis of the locking shaft 7;

[0052] The adjustable link assembly 10 is connected to the other end of the link 5. The adjustable link assembly 10 includes a holding rod 11 and a knob 12. When the knob 12 is loosened, the holding rod 11 can rotate around the other end of the link 5.

[0053] In this embodiment, semi-cylindrical holes 13 are respectively formed on the sides of the cylindrical tooth pressing block 6 and the end face tooth pressing block 8 that are close to each other. Cylindrical teeth are provided on the hole walls of the semi-cylindrical holes 13. The cylindrical tooth pressing block 6 and the end face tooth pressing block 8 are fixedly connected by a guide pin 14. The two semi-cylindrical holes 13 are arranged to surround the outer periphery of the connecting shaft 3. The cylindrical tooth pressing block 6 and the end face tooth pressing block 8 are also respectively provided with shaft holes. The locking shaft 7 passes through the shaft holes. A first spring 23 is arranged between the shaft holes and the semi-cylindrical holes 13. The two ends of the first spring 23 respectively abut against the cylindrical tooth pressing block 6 and the end face tooth pressing block 8.

[0054] In this embodiment, the guide pin 14 is welded to the cylindrical tooth pressing block 6, and the guide pin 14 is in clearance fit with the mounting hole on the end face tooth pressing block 8.

[0055] In this embodiment, a first serrated surface 15 is provided on the end face of the end face tooth pressing block 8 that is in contact with the end face tooth disc 9. A second spring 16 is also arranged between the end face tooth pressing block 8 and the end face tooth disc 9. The locking shaft 7 passes through the communication hole of the end face tooth disc 9. The communication hole and the locking shaft 7 are in threaded fit. A threaded hole is provided on the outer periphery of the end face tooth disc 9, and the threaded hole is connected to the link 5.

[0056] In this embodiment, square heads 17 that cooperate with a wrench are respectively provided at both ends of the locking shaft 7.

[0057] In this embodiment, the adjustable link assembly 10 further includes a first tooth disc 18 and a second tooth disc 19. The first tooth disc 18 is connected to the link 5, and the second tooth disc 19 is connected to the holding rod 11. The knob 12 passes through the first tooth disc 18 and the second tooth disc 19 in sequence through a rotating shaft 20. The rotating shaft 20 is in threaded connection with the second tooth disc 19.

[0058] In this embodiment, a second serrated surface 21 is provided on the mutually contacting surfaces of the first tooth disc 18 and the second tooth disc 19. A third spring 22 is also arranged between the first tooth disc 18 and the second tooth disc 19. When the rotating shaft 20 is unscrewed, the third spring 22 can separate the first tooth disc 18 and the second tooth disc 19.

[0059] In this embodiment, the knob 12 and the rotating shaft 20 are fixed by a riveting process.

[0060] In this embodiment, a serrated surface is provided on the outer peripheral surface of the connecting shaft 3.

[0061] In this embodiment, the locking shaft 7 and the connecting shaft 3 are perpendicular to each other.

[0062] In summary, when the holding device for orthopaedic robot fracture reduction performs reduction on the affected side bone, first, the position of the holding rod 11 is adjusted by the universal adjustment assembly 4. Rotate the square head 17 counterclockwise. When there is a gap between the cylindrical tooth pressing block 6 and the end face tooth pressing block 8, the two pressing blocks can be rotated around the connecting shaft 3. At the same time, the angle of the end face tooth disc 9 can also be rotated. The connecting rod 5 is adjusted in two directions and drives the holding rod 11 to move. After the direction position of the connecting rod 5 is adjusted, the locking shaft 7 is tightened clockwise, so that the engagement surface in the universal adjustment assembly 4 is fixed; then, rotate the knob 12 counterclockwise, so that the first tooth disc 18 and the second tooth disc 19 are separated under the action of the third spring. The second tooth disc 19 drives the holding rod 11 to continue to be adjusted until the holding rod 11 is adjusted to the required position. Next, tighten the knob 12 to fix the holding rod 11. Finally, install the holding needle and fix it to the affected side bone, and start the bone reduction operation by controlling the robotic arm.

[0063] The embodiments of the present invention have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A gripping device for fracture reduction of an orthopedic robot, characterized in that, Comprising: A robotic arm main body, with an interface connecting piece arranged on one side, the interface connecting piece being used for connecting with the robotic arm, and a plurality of connecting shafts being evenly distributed on the outer periphery of the robotic arm main body; A universal adjustment assembly connecting the connecting rod to each of the connecting shafts, the universal adjustment assembly including a cylindrical tooth pressing block and a locking shaft, the locking shaft passing through the cylindrical tooth pressing block and connecting to an end face tooth pressing block and an end face tooth disc, the cylindrical tooth pressing block and the end face tooth pressing block clamping and fixing the connecting shaft, the end face tooth disc being connected to one end of the connecting rod, when the locking shaft is loosened, the cylindrical tooth pressing block and the end face tooth pressing block rotate around the axis of the connecting shaft, and the end face tooth disc rotates around the axis of the locking shaft; An adjustable connecting rod assembly connected to the other end of the connecting rod, the adjustable connecting rod assembly including a holding rod and a knob, when the knob is loosened, the holding rod can rotate around the other end of the connecting rod.

2. The gripping device for fracture reduction of an orthopedic robot according to claim 1, wherein On the sides of the cylindrical tooth pressing block and the end face tooth pressing block close to each other, semi-cylindrical holes are respectively formed, cylindrical teeth are arranged on the hole walls of the semi-cylindrical holes, the cylindrical tooth pressing block and the end face tooth pressing block are fixedly connected by a guide pin, the two semi-cylindrical holes surround the outer periphery of the connecting shaft, the cylindrical tooth pressing block and the end face tooth pressing block are also respectively provided with shaft holes, the locking shaft passes through the shaft holes, and a first spring is arranged between the shaft holes and the semi-cylindrical holes, and both ends of the first spring respectively abut against the cylindrical tooth pressing block and the end face tooth pressing block.

3. The gripping device for orthopedic robot fracture reduction according to claim 2, wherein The guide pin is welded to the cylindrical tooth pressing block and has a clearance fit with the mounting hole on the end face tooth pressing block.

4. The gripping device for fracture reduction of an orthopedic robot according to claim 2, characterized in that, On the end face of the end face tooth pressing block in contact with the end face tooth disc, a first serrated surface is provided, a second spring is also arranged between the end face tooth pressing block and the end face tooth disc, the locking shaft passes through the communication hole of the end face tooth disc, the communication hole and the locking shaft are in threaded fit, and a threaded connection hole is arranged on the outer periphery of the end face tooth disc, and the threaded connection hole is connected to the connecting rod.

5. The gripping device for orthopedic robot fracture reduction according to claim 1, wherein Both ends of the locking shaft are respectively provided with a square head for cooperating with a wrench.

6. The holding device for orthopedic robot fracture reduction according to claim 1, characterized in that, The adjustable connecting rod assembly further includes a first tooth disc and a second tooth disc, the first tooth disc is connected to the connecting rod, the second tooth disc is connected to the holding rod, the knob passes through the first tooth disc and the second tooth disc in sequence through a rotating shaft, and the rotating shaft is in threaded connection with the second tooth disc.

7. The gripping device for orthopedic robot fracture reduction according to claim 6, characterized in that, On the mutually contacting surfaces of the first tooth disc and the second tooth disc, a second serrated surface is provided, and a third spring is also arranged between the first tooth disc and the second tooth disc. When the rotating shaft is unscrewed, the third spring can separate the first tooth disc and the second tooth disc.

8. The gripping device for orthopedic robot fracture reduction according to claim 6, characterized in that, The knob and the rotating shaft are fixed by a riveting process.

9. The gripping device for orthopedic robot fracture reduction according to claim 1, characterized in that, A serrated surface is arranged on the outer peripheral surface of the connecting shaft.

10. The holding device for orthopedic robot fracture reduction according to claim 1, characterized in that, The locking shaft and the connecting shaft are perpendicular to each other.

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