Calibration tool for nailing device

Abstract

The calibration tool is applied to the field of robot surgery and comprises a bottom plate, a reference positioning groove matched with a reference frame is formed in the bottom plate, the reference frame is placed in the reference positioning groove, a calibration block is arranged on the bottom plate, a calibration hole matched with a test needle is formed in the calibration block, and the test needle is arranged in the calibration hole. The test needle sequentially penetrates through the positioning sleeve main body and the calibration hole, and one end, facing the calibration block, of the test needle corresponds to the calibration hole. The device has the technical effects that by controlling the concentricity between the positioning sleeve main body of the nailing device and the test needle, the possibility of deviation when a mechanical arm of a robot is connected with a spine structure of a patient is reduced, the surgical risk is reduced, and the surgical accuracy and the surgical effect are improved.

Description

Technical Field

[0001] The present application relates to the technical field of robotic surgery, and in particular to a calibration tool for a nailer. Background Art

[0002] The nailing device is a medical device used for fracture treatment. It is mainly used for fixing bone nails to support and stabilize the fracture site and promote fracture healing. This device is widely used in limb fractures, orthopedic surgery, spinal surgery and other fields.

[0003] Reference Figure 1 The nailing device includes a reference frame 1, which is integrally formed with a reference sleeve 2, a reference positioning hole 3 is opened on the reference frame 1, a support rod 4 is inserted at the center of the reference sleeve 2, the reference sleeve 2 and the support rod 4 are connected and fixed by a pin, a positioning sleeve body 5 is welded at one end of the positioning column away from the reference frame 1, and a test pin 6 is inserted at the center of the positioning sleeve body 5. In the existing surgical procedure, the nailing device is connected to the patient's spinal structure through the robot's mechanical arm for surgical operation, and the concentricity offset range between the positioning sleeve body 5 and the test pin 6 is required to be within 0.03mm.

[0004] The above-mentioned method of using a robot to operate the nailer for surgery has high requirements on the concentricity dimensional accuracy of the positioning sleeve body of the nailer and the test needle. If the concentricity dimensional accuracy requirements are not met, deviations or errors are prone to occur in the surgical operation, and the peripheral nerves of the spine may be accidentally injured during the operation, affecting the surgical effect and increasing the surgical risk. Summary of the invention

[0005] In order to help solve the problem that the dimensional accuracy between the positioning sleeve body and the test needle of the nail setter in existing robotic surgery is difficult to determine, and the concentricity is prone to deviation, the present application provides a calibration tool for a nail setter, which adopts the following technical solution: it includes a base plate, the base plate is provided with a reference positioning groove matching the reference frame, the reference frame is placed in the reference positioning groove, the base plate is provided with a calibration block, the calibration block is provided with a calibration hole matching the test needle, the test needle is sequentially passed through the positioning sleeve body and the calibration hole, and the end of the test needle facing the calibration block corresponds to the calibration hole.

[0006] Through the above technical solution, when it is necessary to detect the concentricity dimensional accuracy between the positioning sleeve body of the nailer and the test needle, the operator places the reference frame in the reference positioning groove, connects and fixes the positioning sleeve body of the nailer to the reference frame through the support rod and the latch, and then passes the test needle through the center of the positioning sleeve body, and detects whether the end of the test needle facing the calibration block can be inserted into the calibration hole. If there is a deviation, reinstall the positioning sleeve body until the test needle can be inserted into the calibration hole of the calibration block, and the concentricity of the test needle and the center of the positioning sleeve body is within the required range. By controlling the concentricity between the positioning sleeve body of the nailer and the test needle, the possibility of deviation when the robot's mechanical arm is connected to the patient's spinal structure is reduced, the surgical risk is reduced, and the surgical accuracy and surgical effect are improved.

[0007] In a specific possible implementation scheme, the base plate is provided with a first connecting component for fixing the reference frame, the first connecting component includes a bottom positioning column arranged at the bottom of the reference positioning groove and matching the reference positioning hole, and the bottom positioning column is partially inserted into the reference positioning hole.

[0008] Through the above technical solution, the bottom positioning column is passed through the reference positioning hole of the reference frame, so that the relative position of the reference frame and the base plate is fixed, thereby limiting the free movement of the reference frame, reducing the possibility of reference frame deviation, and improving the accuracy and stability of the position of the nailer installed on the base plate.

[0009] In a specific feasible implementation scheme, an adjustment groove is provided on the surface of the base plate facing the positioning sleeve body, a trapezoidal groove is provided at the bottom of the adjustment groove, a trapezoidal block matching the trapezoidal groove is provided on the surface of the calibration block facing the base plate, the trapezoidal block is slidably connected in the trapezoidal groove, and a second connecting component for fixing the calibration block is provided on the base plate.

[0010] Through the above technical solution, when dealing with test needles of different lengths, the operator can move the trapezoidal block to move the calibration block along the adjustment slot, and after adjusting it in place, use the second connecting component to fix the calibration block, so as to deal with test needles of different models, with greater flexibility and enhanced application range of the detection tooling. At the same time, the trapezoidal block reduces the possibility of the calibration block detaching and improves the stability of the calibration block placement.

[0011] In a specific possible implementation manner, the second connection assembly includes a mounting block disposed on the calibration block, a mounting bolt is passed through the mounting block and threadedly connected thereto, and the mounting bolt is pressed against the base plate.

[0012] Through the above technical solution, after the calibration block is moved into position, the operator rotates the mounting bolt so that one end of the mounting bolt facing the base plate is pressed against the base plate, thereby fixing the position of the calibration block.

[0013] In a specific possible implementation manner, a gasket is rotatably connected to the end of the mounting bolt facing the base plate, and the gasket is pressed tightly between the mounting bolt and the base plate.

[0014] Through the above technical solution, the gasket increases the contact area between the end of the mounting bolt facing the base plate and the base plate, thereby increasing the friction resistance between the mounting bolt and the base plate, and further improving the stability of the calibration block position.

[0015] In a specific possible implementation manner, a buffer rubber pad is provided on the surface of the gasket facing the bottom plate, and the buffer rubber pad is pressed tightly between the gasket and the bottom plate.

[0016] Through the above technical solution, the buffer rubber pad further enhances the sliding friction between the base plate and the gasket, reduces the possibility of position deviation of the calibration block, and improves the stability of the position of the calibration block.

[0017] In a specific feasible implementation scheme, a plurality of calibration positioning holes are provided at the bottom of the adjustment groove, a calibration positioning groove matching the plurality of calibration positioning holes is provided on the surface of the calibration block facing the base plate, a calibration positioning column matching the calibration positioning groove is inserted into the calibration positioning groove, and a portion of the calibration positioning column is inserted into one of the calibration positioning holes.

[0018] Through the above technical solution, the calibration positioning column is inserted into the calibration positioning groove of the calibration block to limit the free movement of the calibration block, ensuring that the relative position of the calibration block and the base plate is fixed, reducing the possibility of the calibration block shifting, and improving the stability of the calibration block installed on the base plate. At the same time, the accuracy of the concentricity between the positioning sleeve body and the test needle is improved.

[0019] In a specific possible implementation manner, a scale matching the adjustment groove is provided on the surface of the base plate facing the calibration block.

[0020] Through the above technical solution, the operator can easily and conveniently know the position range of the calibration block adjustment using a ruler, which is convenient for the operator to know the model of the test needle to be detected.

[0021] In a specific possible implementation manner, a pressure plate is bolted to the bottom plate, and the reference frame is pressed tightly between the pressure plate and the reference positioning groove.

[0022] Through the above technical solution, the reference frame is pressed tightly between the pressure plate and the reference positioning groove, which reduces the possibility of shaking of the reference frame and further improves the stability of the reference frame placed in the reference positioning groove. When the pressure plate is not needed, it can be removed by bolts.

[0023] In a specific possible implementation manner, an inclined chamfer is provided on the surface of the calibration block facing away from the base plate.

[0024] Through the above technical solution, the inclined chamfer improves the aesthetics of the calibration block, reduces the risk of the sharp edge of the calibration block cutting the operator, and improves the safety of use.

[0025] In summary, the present application has the following beneficial technical effects: when it is necessary to detect the concentricity dimensional accuracy between the positioning sleeve body of the nailer and the test needle, the operator places the reference frame in the reference positioning groove, connects and fixes the positioning sleeve body of the nailer to the reference frame through the support rod and the latch, and then passes the test needle through the center of the positioning sleeve body, and detects whether the end of the test needle facing the calibration block can be inserted into the calibration hole. If there is a deviation, reinstall the positioning sleeve body until the test needle can be inserted into the calibration hole of the calibration block, and the concentricity of the test needle and the center of the positioning sleeve body is within the required range. By controlling the concentricity between the positioning sleeve body of the nailer and the test needle, the possibility of deviation when the robot's mechanical arm is connected to the patient's spinal structure is reduced, the surgical risk is reduced, and the surgical accuracy and surgical effect are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a structural schematic diagram of a nailing device in the prior art.

[0027] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 3 It is a structural schematic diagram used to embody the calibration positioning column in the embodiment of the present application.

[0029] Figure numerals: 1. reference frame; 2. reference sleeve; 3. reference positioning hole; 4. support rod; 5. positioning sleeve body; 6. test needle; 7. bottom plate; 8. reference positioning groove; 9. calibration block; 10. calibration hole; 11. bottom positioning column; 12. adjustment groove; 13. trapezoidal groove; 14. trapezoidal block; 15. mounting block; 16. mounting bolt; 17. gasket; 18. buffer rubber pad; 19. calibration positioning hole; 20. calibration positioning column; 21. scale; 22. pressure plate; 23. tilt chamfer. DETAILED DESCRIPTION

[0030] The following is combined with Figure 2-3 This application is described in further detail.

[0031] The embodiment of the present application discloses a calibration tool for a nail setter.

[0032] Reference Figure 2 and Figure 3 The calibration tool for the nailer includes a base plate 7. In the embodiment of the present application, the base plate 7 is made of aluminum alloy material. The aluminum alloy material has the advantages of light weight, high strength, corrosion resistance, good thermal conductivity and electrical conductivity, easy processing and forming, and beautiful and environmentally friendly.

[0033] Reference Figure 2 and Figure 3 The base plate 7 is provided with a reference positioning groove 8 that matches the size of the reference frame 1. The reference frame 1 is placed in the reference positioning groove 8. The base plate 7 is provided with a calibration block 9. The calibration block 9 is provided with an inclined chamfer 23 on the surface facing away from the base plate 7. The inclined chamfer 23 improves the aesthetics of the calibration block 9, reduces the risk of the sharp edge of the calibration block 9 cutting the operator, and improves the safety of use. The calibration block 9 is provided with a calibration hole 10 that matches the diameter size of the test needle 6. The test needle 6 passes through the positioning sleeve body 5 and the calibration hole 10 in sequence, and the end of the test needle 6 facing the calibration block 9 corresponds to the calibration hole 10.

[0034] Reference Figure 2 and Figure 3 , a first connecting component for fixing the reference frame 1 is provided on the bottom plate 7, and the first connecting component includes a bottom positioning column 11 which is provided at the bottom of the reference positioning groove 8 and matches the size of the reference positioning hole 3. In the embodiment of the present application, the number of the bottom positioning columns 11 is four, and the four bottom positioning columns 11 are partially penetrated in the reference positioning hole 3. A pressure plate 22 is bolted to the bottom plate 7, and the reference frame 1 is pressed between the pressure plate 22 and the bottom of the reference positioning groove 8. Pressing the reference frame 1 between the pressure plate 22 and the reference positioning groove 8 reduces the possibility of shaking of the reference frame 1, and further improves the stability of the reference frame 1 placed in the reference positioning groove 8. When the pressure plate 22 is not needed, it can be removed by bolting.

[0035] Therefore, the four bottom positioning columns 11 are all inserted into the reference positioning holes 3 of the reference frame 1, so that the relative position of the reference frame 1 and the base plate 7 is fixed, thereby limiting the free movement of the reference frame 1, reducing the possibility of deviation of the reference frame 1, and improving the accuracy and stability of the position of the nailer installed on the base plate 7.

[0036] Reference Figure 2 and Figure 3 The bottom plate 7 is provided with an adjustment groove 12 on the surface facing the positioning sleeve body 5, and a trapezoidal groove 13 is provided at the bottom of the adjustment groove 12. A trapezoidal block 14 matching the size of the trapezoidal groove 13 is provided on the surface of the calibration block 9 facing the bottom plate 7, and the trapezoidal block 14 is slidably connected in the trapezoidal groove 13. A second connecting component for fixing the calibration block 9 is provided on the bottom plate 7. A scale 21 matching the adjustment groove 12 is bonded on the surface of the bottom plate 7 facing the calibration block 9. The scale 21 can be used by the operator to easily and conveniently know the position range of the calibration block 9, so that the operator can know the model of the test needle 6 to be detected.

[0037] Therefore, when dealing with test needles 6 of different lengths, the operator can move the trapezoidal block 14 to move the calibration block 9 along the adjustment groove 12. After adjusting it in place, the calibration block 9 is fixed using the second connecting assembly, so as to deal with test needles 6 of different models, which is more flexible and enhances the scope of application of the detection tooling. The trapezoidal block 14 reduces the possibility of the calibration block 9 being detached and improves the stability of the placement of the calibration block 9. At the same time, since the surface roughness of the bottom plate 7 may be inconsistent, after the adjustment groove 12 is opened on the bottom plate 7, the groove wall of the adjustment groove 12 can be processed so that the surface roughness of the bottom of the adjustment groove 12 is within Ra1.6, so that the contact surface between the calibration block 9 and the adjustment groove 12 is smoother, thereby improving the accuracy of the concentricity between the calibration positioning sleeve body 5 and the test needle 6.

[0038] Reference Figure 2 and Figure 3 The second connection assembly includes a mounting block 15 disposed on the calibration block 9, and a mounting bolt 16 is passed through and threadedly connected to the mounting block 15, and the mounting bolt 16 is pressed against the bottom plate 7. The end of the mounting bolt 16 facing the bottom plate 7 is rotated and connected with a gasket 17, and the gasket 17 is pressed against between the mounting bolt 16 and the bottom plate 7. A buffer rubber pad 18 is bonded to the surface of the gasket 17 facing the bottom plate 7, and the buffer rubber pad 18 is pressed against between the gasket 17 and the bottom plate 7.

[0039] Therefore, after the calibration block 9 is moved into position, the operator rotates the mounting bolt 16 so that the end of the mounting bolt 16 facing the bottom plate 7 is pressed against the bottom plate 7, thereby fixing the position of the calibration block 9. The gasket 17 increases the contact area between the end of the mounting bolt 16 facing the bottom plate 7 and the bottom plate 7, thereby increasing the friction resistance between the mounting bolt 16 and the bottom plate 7, and the buffer rubber pad 18 further enhances the sliding friction between the bottom plate 7 and the gasket 17, reducing the possibility of position deviation of the calibration block 9 and improving the stability of the position of the calibration block 9.

[0040] Reference Figure 2 and Figure 3 , a plurality of calibration positioning holes 19 are provided at the bottom of the adjustment groove 12, and a calibration positioning groove matching the size of the plurality of calibration positioning holes 19 is provided on the surface of the calibration block 9 facing the bottom plate 7, and a calibration positioning column 20 matching the size of the calibration positioning groove is inserted into the calibration positioning groove, and the calibration positioning column 20 is partially inserted into one of the calibration positioning holes 19. Therefore, the calibration positioning column 20 is inserted into the calibration positioning groove of the calibration block 9 to limit the free movement of the calibration block 9, ensure that the relative position of the calibration block 9 and the bottom plate 7 is fixed, reduce the possibility of the calibration block 9 being offset, improve the stability of the calibration block 9 installed on the bottom plate 7, and improve the accuracy of the concentricity between the positioning sleeve body 5 and the test needle 6.

[0041] The implementation principle of the embodiment of the present application is as follows: when it is necessary to detect the concentricity dimensional accuracy between the positioning sleeve body 5 and the test needle 6 of the nailer, the operator places the reference frame 1 in the reference positioning groove 8, so that the four bottom positioning columns 11 are all inserted into the reference positioning hole 3 of the reference frame 1, and the end of the support rod 4 facing the positioning sleeve body 5 is fixed to the positioning sleeve body 5 by welding, and the positioning sleeve body 5 of the nailer is connected to the reference sleeve 2 through the support rod 4 and fixed with a pin, so as to realize the installation of the nailer on the base plate 7. After the calibration block 9 is moved to a suitable position along the adjustment groove 12 according to the model of the test needle 6, the calibration positioning column 20 is inserted into the calibration positioning groove, and the operator rotates the mounting bolt 16 so that the end of the mounting bolt 16 facing the base plate 7 is pressed against the base plate 7. After the test needle 6 is passed through the center of the positioning sleeve body 5, the end of the test needle 6 facing the calibration block 9 is tested to see whether it can be inserted into the calibration hole 10. If there is a deviation, the positioning sleeve body 5 is reinstalled until the test needle 6 can be inserted into the calibration hole 10 of the calibration block 9, and the concentricity of the test needle 6 and the center of the positioning sleeve body 5 is within the required range. By controlling the concentricity between the positioning sleeve body 5 of the nailing device and the test needle 6, the possibility of deviation when the robot's mechanical arm is connected to the patient's spinal structure is reduced, the surgical risk is reduced, and the surgical accuracy and surgical effect are improved.

[0042] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A calibration tool for a nailer, characterized in that: The invention comprises a base plate (7), wherein a reference positioning groove (8) matching with a reference frame (1) is provided on the base plate (7), and the reference frame (1) is placed in the reference positioning groove (8). A calibration block (9) is provided on the base plate (7), and a calibration hole (10) matching with a test needle (6) is provided on the calibration block (9). The test needle (6) passes through a positioning sleeve body (5) and the calibration hole (10) in sequence, and one end of the test needle (6) facing the calibration block (9) corresponds to the calibration hole (10).

2. The calibration tool for a nailer according to claim 1, characterized in that: The base plate (7) is provided with a first connection component for fixing the reference frame (1), the first connection component comprising a bottom positioning column (11) arranged at the bottom of the reference positioning groove (8) and matching the reference positioning hole (3), and the bottom positioning column (11) is partially inserted into the reference positioning hole (3).

3. The calibration tool for a nailer according to claim 1, characterized in that: The bottom plate (7) is provided with an adjustment groove (12) on the surface facing the positioning sleeve body (5), the bottom of the adjustment groove (12) is provided with a trapezoidal groove (13), the calibration block (9) is provided with a trapezoidal block (14) matching the trapezoidal groove (13) on the surface facing the bottom plate (7), the trapezoidal block (14) is slidably connected in the trapezoidal groove (13), and a second connection component for fixing the calibration block (9) is provided on the bottom plate (7).

4. The calibration tool for a nailer according to claim 3, characterized in that: The second connection assembly comprises a mounting block (15) arranged on the calibration block (9), a mounting bolt (16) passing through and threadedly connected to the mounting block (15), and the mounting bolt (16) and the base plate (7) are pressed against each other.

5. The calibration tool for a nailer according to claim 4, characterized in that: The end of the mounting bolt (16) facing the bottom plate (7) is rotatably connected to a gasket (17), and the gasket (17) is pressed tightly between the mounting bolt (16) and the bottom plate (7).

6. The calibration tool for a nailer according to claim 5, characterized in that: A buffer rubber pad (18) is provided on the surface of the gasket (17) facing the bottom plate (7), and the buffer rubber pad (18) is pressed tightly between the gasket (17) and the bottom plate (7).

7. The calibration tool for a nailer according to claim 3, characterized in that: The bottom of the adjustment groove (12) is provided with a plurality of calibration positioning holes (19); the surface of the calibration block (9) facing the bottom plate (7) is provided with calibration positioning grooves matching the plurality of calibration positioning holes (19); a calibration positioning column (20) matching the calibration positioning groove is inserted into the calibration positioning groove; and the calibration positioning column (20) is partially inserted into one of the calibration positioning holes (19).

8. The calibration tool for a nailer according to claim 3, characterized in that: A scale (21) matching the adjustment slot (12) is provided on the surface of the bottom plate (7) facing the calibration block (9).

9. The calibration tool for a nailer according to claim 1, characterized in that: A pressure plate (22) is bolted to the bottom plate (7), and the reference frame (1) is pressed tightly between the pressure plate (22) and the reference positioning groove (8).

10. The calibration tool for a nailer according to claim 1, characterized in that: The calibration block (9) is provided with an inclined chamfer (23) on the surface facing away from the bottom plate (7).

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