Bone grafting device for orthopedic surgery

Abstract

The invention discloses a bone grafting device used in orthopedic surgery, and relates to the technical field of bone grafting devices, the bone grafting device comprises a guide cavity tube, an implantation rod is arranged in the guide cavity tube, a feeding mechanism is arranged on the guide cavity tube, a supporting mechanism is arranged at the side end of the guide cavity tube, and two sliding mechanisms are arranged in the supporting mechanism; the feeding mechanism comprises a feeding pipe, a spiral conveying shaft is arranged in the feeding pipe, a third bevel gear is fixedly mounted at one end of the spiral conveying shaft, the third bevel gear is meshed with a fourth bevel gear, the fourth bevel gear is mounted on a transmission shaft, the transmission shaft is meshed with the third bevel gear, the third bevel gear is meshed with the fourth bevel gear, the third bevel gear is meshed with the fourth bevel gear, and the third bevel gear is meshed with the fourth bevel gear. The fixing frame on the inner wall of the feeding pipe supports the spiral conveying shaft through the bearing, spiral conveying of the bone meal can be achieved through the structure, when the bone meal is implanted, the spiral conveying mode enables the bone meal to move evenly and orderly, accumulation of the bone meal is effectively avoided, equipment blockage is prevented, and it is guaranteed that the bone grafting process is conducted smoothly.

Description

Technical Field

[0001] The invention relates to the technical field of bone grafting devices, and in particular to a bone grafting device used in orthopedic surgery. Background Art

[0002] Bone grafting device is a medical device commonly used in orthopedic surgery. It is mainly used to assist bone grafting in orthopedic surgery. It can accurately fill the bone graft to the required position, ensure the position and amount of bone grafting achieve the expected effect, help to evenly distribute the bone graft in the transplantation area, improve the quality of bone healing, and minimize damage to surrounding tissues during the operation. The bone grafting devices currently used in orthopedic surgery have been found to have at least the following technical problems: First, traditional bone grafting devices usually use a simple pushing or pouring method to transport bone powder. In this way, bone powder is easy to accumulate and clump in the delivery channel, which may lead to blockage of the bone grafting device. For example, in some surgeries that require precise bone grafting, bone powder may block the bone grafting device, which not only prolongs the operation time, but also may affect the bone grafting effect, increasing the patient's pain and surgical risks.

[0003] Second, some traditional bone grafting devices have a simple structural design, and the operations of loading and implanting bone powder are independent of each other. Doctors need to perform them separately, and the process is cumbersome. For example, when performing a large number of bone powder transplant operations, doctors need to frequently switch between loading and implanting actions, which consumes a lot of time and energy, prolongs the operation time, and increases the risk to patients during the operation. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a bone implanter used in orthopedic surgery to solve the above problems.

[0005] A bone implanter for orthopedic surgery comprises a guide lumen, an implant rod is arranged in the guide lumen, a feeding mechanism is arranged on the guide lumen, a support mechanism is arranged at the side end of the guide lumen, two sets of sliding mechanisms are arranged in the support mechanism, a mounting cover is fixedly installed on the guide lumen, a linkage mechanism is arranged between the mounting cover and the guide lumen, the feeding mechanism comprises a feeding pipe, a bone powder storage bucket is fixedly installed on the feeding pipe, a spiral conveying shaft is arranged in the feeding pipe, a bevel gear three is fixedly installed on the spiral conveying shaft, a bevel gear four is meshed on the bevel gear three, a transmission shaft is fixedly installed on the bevel gear four, the linkage mechanism comprises a flat gear one, a flat gear one is fixedly installed on Gear three, the flat gear three is meshed with a gear transmission belt, the gear transmission belt is meshed with a flat gear two, the flat gear two is fixedly mounted with a bevel gear two, the bevel gear two is meshed with a bevel gear one, the bevel gear one is fixedly mounted on the side end of the transmission shaft, the implant rod is provided with a built-in rack, the flat gear one is meshed with the built-in rack in the implant rod, the supporting mechanism includes two positioning brackets, a connecting cylinder is provided between the two positioning brackets, the sliding mechanism includes a limiting circular plate, a return spring is fixedly mounted on the side end of the limiting circular plate, a clamping plate is fixedly mounted on the limiting circular plate, a positioning groove is provided on the guide cavity tube, and the clamping plate is slidably mounted in the positioning groove provided in the guide cavity tube.

[0006] Preferably, the feed pipe, the bone meal storage bucket and the guide cavity tube are connected through each other, a fixing frame is fixedly installed on the inner wall of the feed pipe, the spiral conveying shaft is fixedly installed on the fixing frame through a bearing, an inner groove is opened in the installation cover, and the bevel gear 2, flat gear 2, flat gear 3 and flat gear 1 are all rotatably installed in the inner groove opened in the installation cover through a rotating shaft.

[0007] Preferably, two limit grooves are provided in the connecting cylinder, the limit circular plates in the two sets of sliding mechanisms are respectively slidably installed in the two limit grooves, the reset springs in the two sets of sliding mechanisms are respectively fixedly installed on the inner walls of the two limit grooves, and a protective plate is fixedly installed between the two positioning brackets, and an adjustment groove is provided on the protective plate.

[0008] Preferably, a limit strip is fixedly installed on the guide cavity tube, the connecting cylinder is limit-slidingly installed on the circumferential surface of the guide cavity tube and the limit strip, a limit slider is fixedly installed on the side end of the limit circular plate, and the limit sliders in the two groups of sliding mechanisms are respectively limit-slidingly installed in two positioning brackets.

[0009] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, a spiral conveying shaft is arranged in the feed pipe, one end of which is fixedly installed with bevel gear three, bevel gear three is meshed with bevel gear four, bevel gear four is installed on the transmission shaft, and the fixing frame on the inner wall of the feed pipe supports the spiral conveying shaft through a bearing. This structure can realize the spiral conveying of bone powder. When the bone powder is implanted, the spiral conveying method enables the bone powder to move evenly and orderly, effectively avoiding the accumulation of bone powder, preventing the equipment from being blocked, and ensuring the smooth progress of the bone transplantation process.

[0010] In the present invention, through the ingenious meshing design of the linkage mechanism (including flat gear 1, flat gear 3, gear transmission belt, flat gear 2, bevel gear 2, bevel gear 1, transmission shaft, etc.) and the built-in rack on the implant rod, when the implant rod is moved upward, the built-in rack drives the flat gear 1 to rotate, and then through a series of gear transmission, the spiral conveying shaft rotates to realize bone powder feeding, and when the implant rod is pushed toward the end of the guide cavity, the spiral conveying shaft will not convey the bone powder downward due to the reverse rotation. At this time, the implant rod can directly squeeze the bone powder in the guide cavity and convey it into the patient's body. This design simplifies the operation process and improves the bone grafting efficiency.

[0011] In the present invention, flexible adjustment of the end of the guide cavity is achieved through the cooperation of the supporting mechanism and the sliding mechanism. The supporting mechanism is composed of two positioning brackets and a connecting cylinder. The sliding mechanism includes a limiting circular plate, a return spring and a limiting slider are installed on its side end, and a clamping plate is also fixedly installed. The guide cavity is provided with a groove for the sliding of the clamping plate. During the operation, the doctor can rotate the end of the guide cavity according to the requirements of the bone powder implantation position, and accurately transport the bone powder to the target position, thereby improving the accuracy of bone grafting and enhancing the surgical effect.

[0012] In the present invention, a protective plate is arranged between the two positioning brackets. The protective plate is made of a transparent material, which can effectively prevent debris from falling into the patient's bone socket and reduce the risk of surgical infection. At the same time, the transparent protective plate is convenient for doctors to observe the filling status of bone powder in the bone socket at any time, such as whether the filling amount is sufficient and whether the distribution is uniform, etc., so that doctors can adjust the bone grafting operation in time to ensure the smooth progress of the operation.

[0013] In the present invention, the return spring in the sliding mechanism plays an important role. When the guide lumen moves downward, the limit circular plate in the connecting cylinder squeezes the return spring, and the return spring acts as a buffer to prevent the guide lumen from moving downward quickly and damaging the surrounding tissues. When the guide lumen reaches a suitable position, the elastic force of the return spring causes the clamping plate to apply pressure to the surface of the guide lumen, stably supporting the guide lumen, ensuring the stability of the device during use, and improving the safety of the bone grafting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the whole invention; Figure 2 It is a structural diagram of the guide lumen of the present invention; Figure 3 is a structural diagram of the protective plate of the present invention; Figure 4 It is a structural diagram of the limit strip of the present invention; Figure 5 It is a structural diagram of the implant rod of the present invention; Figure 6 It is a structural diagram of the positioning bracket of the present invention; Figure 7 For the present invention Figure 2 A magnified view of the structure at A; Figure 8 For the present invention Figure 2 A magnified view of the structure at B; Fig. 9 For the present invention Figure 3 A magnified view of the structure at C; Fig.10 For the present invention Figure 5 A magnified view of the structure at D; Fig.11 For the present invention Figure 6 Enlarged view of the structure at E.

[0015] In the figure, the corresponding relationship between the component names and the figure numbers is: 11, mounting cover; 12, transmission shaft; 13, bevel gear one; 14, bevel gear two; 15, flat gear one; 16, inner groove; 17, flat gear two; 18, gear transmission belt; 19, flat gear three; 21, connecting cylinder; 22, limiting circular plate; 23, limiting groove; 24, reset spring; 25, positioning bracket; 26, limiting slider; 27, clamping plate; 31, feeding pipe; 33, bevel gear three; 34, bevel gear four; 35, spiral conveying shaft; 36, fixing frame; 37, bone meal storage bucket; 41, guide cavity tube; 42, implant rod; 44, limiting strip; 45, protective plate; 46, adjustment groove; 47, built-in rack; 48, positioning groove. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0017] See also Figure 1 - Fig.11The present invention provides a bone implanter for orthopedic surgery, comprising a guide cavity 41, an implant rod 42 is arranged in the guide cavity 41, a feeding mechanism is arranged on the guide cavity 41, a support mechanism is arranged at the side end of the guide cavity 41, two sets of sliding mechanisms are arranged in the support mechanism, a mounting cover 11 is fixedly installed on the guide cavity 41, a linkage mechanism is arranged between the mounting cover 11 and the guide cavity 41, the feeding mechanism comprises a feeding tube 31, a bone powder storage bucket 37 is fixedly installed on the feeding tube 31, a spiral conveying shaft 35 is arranged in the feeding tube 31, a bevel gear 33 is fixedly installed on the spiral conveying shaft 35, a bevel gear 4 34 is meshed on the bevel gear 33, and a bevel gear 4 34 is fixedly installed on the bevel gear 4 There is a transmission shaft 12, the linkage mechanism includes a flat gear 15, a flat gear 3 19 is fixedly installed on the flat gear 15, a gear belt 18 is meshed on the flat gear 3 19, a flat gear 2 17 is meshed in the gear belt 18, a bevel gear 2 14 is fixedly installed on the flat gear 2 17, a bevel gear 13 is meshed on the bevel gear 2 14, and the bevel gear 13 is fixedly installed on the side end of the transmission shaft 12, an implant rod 42 is provided with a built-in rack 47, the flat gear 15 is meshed with the built-in rack 47 in the implant rod 42, the support mechanism includes two positioning brackets 25, a connecting cylinder 21 is provided between the two positioning brackets 25, and the sliding mechanism includes a limiting circular plate 22, a limiting circular plate 2 A return spring 24 is fixedly installed on the side end 2, a clamping plate 27 is fixedly installed on the limiting circular plate 22, a positioning groove 48 is provided on the guide cavity tube 41, and the clamping plate 27 is slidably installed in the positioning groove 48 provided in the guide cavity tube 41. Before use, open the flip cover at the upper end of the bone powder storage barrel 37, add the bone powder to be transplanted, and then cover it, place the two positioning brackets 25 in the bone tissue and other structures around the surgical position, and then the two positioning brackets 25 can hook the surrounding bone tissue and other structures for positioning, so that the position of the guide cavity tube 41 and its various components is stable. At this time, the protective plate 45 can cover the patient's surgical position to prevent debris from falling into the filling groove of the bone, and And the material of the protective plate 45 is transparent, which is convenient for observing the filling groove of the bone. Then, the guide cavity 41 is moved downward. At this time, the two limiting circular plates 22 inside the connecting cylinder 21 will squeeze the reset spring 24 under the pressure, and the clamping plate 27 at the side end of the limiting circular plate 22 will move out from the positioning groove 48 opened in the guide cavity 41. At this time, the guide cavity 41 will move downward along the inside of the connecting cylinder 21, so that the end of the guide cavity 41 can be moved close to the filling groove of the bone. Under the elastic force of the reset spring 24, the clamping plate 27 will exert a certain pressure on the surface of the guide cavity 41, so as to support the guide cavity 41.

[0018] The feed tube 31, the bone powder storage bucket 37 and the guide cavity 41 are connected through each other. A fixing frame 36 is fixedly installed on the inner wall of the feed tube 31. The spiral conveying shaft 35 is fixedly installed on the fixing frame 36 through a bearing. An inner groove 16 is provided in the installation cover 11. Bevel gear 2 14, flat gear 2 17, flat gear 3 19 and flat gear 15 are all rotatably installed in the inner groove 16 of the installation cover 11 through a rotating shaft. After the bone implanter is installed, the implant rod 42 is moved upward. At this time, the implant rod 42 moves upward inside the guide cavity 41. When the implant rod 42 moves to the top of the feed tube 31, the built-in rack 47 on the implant rod 42 will overlap and mesh with the flat gear 15, and then continue to implant the rod 42. At this time, the clamping plate 27 drives the flat gear 15 to rotate, and the flat gear 15 drives the flat gear 3 19 to rotate. The flat gear 3 19 is connected to the implant rod 42 through the gear transmission belt 18. The flat gear 2 17 is meshed, and at this time, the flat gear 2 17 and the bevel gear 2 14 will both rotate. The bevel gear 2 14 drives the bevel gear 1 13 to rotate, and the bevel gear 1 13 drives the transmission shaft 12 to rotate, and the transmission shaft 12 drives the bevel gear 4 34 to rotate. Through the meshing of the bevel gear 4 34 and the bevel gear 3 33, the bevel gear 4 34 drives the screw conveying shaft 35 to rotate. At this time, the screw conveying shaft 35 will convey the bone powder placed in the bone powder storage bucket 37 to the inside of the guide cavity 41. When the guide cavity 41 moves to the top, the screw conveying shaft 35 completes the conveying. At this time, the implant rod 42 is pushed toward the end of the guide cavity 41. Since the screw conveying shaft 35 will not convey the bone powder downward when it rotates in the opposite direction, it is only necessary to use the implant rod 42 to squeeze the bone powder in the guide cavity 41, and then convey it to the filling groove of the patient's bone through the port of the guide cavity 41.

[0019] Two limit grooves 23 are provided in the connecting cylinder 21, and the limit circular plates 22 in the two sets of sliding mechanisms are respectively slidably installed in the two limit grooves 23, and the return springs 24 in the two sets of sliding mechanisms are respectively fixedly installed on the inner walls of the two limit grooves 23. A protective plate 45 is fixedly installed between the two positioning brackets 25, and an adjustment groove 46 is provided on the protective plate 45. During the transportation process, the position of the front end of the guide cavity 41 can be adjusted in the adjustment groove 46 provided on the protective plate 45 as needed. Since the guide cavity 41 and the connecting cylinder 21 are connected in a sliding limit manner, and the connecting cylinder 21 and the two positioning brackets 25 are connected in a rotational manner, and rotated by rotating the two limit circular plates 22, the end of the guide cavity 41 can be adjusted according to the position where the bone powder is pushed out, thereby filling different positions of the bone filling groove.

[0020] A limit strip 44 is fixedly installed on the guide lumen 41, and the connecting cylinder 21 is limitedly slidably installed on the circumferential surface of the guide lumen 41 and the limit strip 44. A limit slider 26 is fixedly installed on the side end of the limit circular plate 22, and the limit sliders 26 in the two sets of sliding mechanisms are respectively limitedly slidably installed in the two positioning brackets 25. When the bone implanter needs to be folded after use, it is only necessary to move the guide lumen 41, and then when the clamping plates 27 on the two limit circular plates 22 are clamped in the two positioning grooves 48 provided in the guide lumen 41, the installation is completed. At this time, the guide lumen 41 and the connecting cylinder 21 and the two positioning brackets 25 will not rotate, so that the device as a whole can be fixed, and the protective plate 45 can protect the end of the guide lumen 41 to avoid collision and other problems when the end of the guide lumen 41 is not in use.

[0021] Working Principle: The following steps are required when using this bone grafter for bone powder transplantation in orthopedic surgery: The first step is to open the flip cover on the upper end of the bone powder storage bucket 37 before use, add the bone powder to be transplanted, and then close the cover, place the two positioning brackets 25 in the bone tissue and other structures around the surgical site, and then use the two positioning brackets 25 to hook the surrounding bone tissue and other structures for positioning, so that the guide cavity 41 and its various components are stable. At this time, the protective plate 45 can shield the patient's surgical site to prevent debris from falling into the bone filling groove, and the material of the protective plate 45 is transparent, which is convenient for observing the bone filling groove, and then move the guide down. Lumen 41, at this time, the two limiting circular plates 22 inside the connecting cylinder 21 will squeeze the reset spring 24 under the pressure, and the clamping plate 27 at the side end of the limiting circular plate 22 will move out from the positioning groove 48 opened in the guide lumen 41, and the guide lumen 41 will move downward along the inside of the connecting cylinder 21, so that the end of the guide lumen 41 can be moved close to the filling groove of the bone, and under the elastic force of the reset spring 24, the clamping plate 27 will exert a certain pressure on the surface of the guide lumen 41, so as to support the guide lumen 41.

[0022] In the second step, after the bone implanter is installed, the implant rod 42 is moved upward. At this time, the implant rod 42 moves upward inside the guide cavity 41. When the implant rod 42 moves to the top of the feed tube 31, the built-in rack 47 on the implant rod 42 will overlap and mesh with the flat gear 15, and then continue to implant the implant rod 42. At this time, the clamping plate 27 drives the flat gear 15 to rotate, and the flat gear 15 drives the flat gear 3 19 to rotate. The flat gear 3 19 is meshed with the flat gear 2 17 through the gear transmission belt 18. At this time, the flat gear 2 17 and the bevel gear 2 14 will both rotate, and the bevel gear 2 14 will drive the bevel gear 1 13 to rotate, and the bevel gear 1 13 drives the transmission shaft 12 The transmission shaft 12 rotates, and the transmission shaft 12 drives the bevel gear four 34 to rotate. Through the meshing of the bevel gear four 34 and the bevel gear three 33, the bevel gear four 34 drives the screw conveying shaft 35 to rotate. At this time, the screw conveying shaft 35 will convey the bone powder placed in the bone powder storage bucket 37 to the inside of the guide cavity 41. When the guide cavity 41 moves to the top, the conveying of the screw conveying shaft 35 is completed. At this time, the implantation rod 42 is pushed toward the end of the guide cavity 41. Since the bone powder will not be transported downward when the screw conveying shaft 35 rotates in the opposite direction, it is only necessary to use the implantation rod 42 to squeeze the bone powder in the guide cavity 41, and then transport it to the filling groove of the patient's bone through the port of the guide cavity 41.

[0023] In the third step, during the transportation process, the position of the front end of the guide cavity 41 can be adjusted in the adjustment groove 46 opened in the protective plate 45 as needed. Since the guide cavity 41 and the connecting cylinder 21 are connected by sliding limit, and the connecting cylinder 21 and the two positioning brackets 25 are connected by rotation, and the two limit circular plates 22 are rotated, the end of the guide cavity 41 can be adjusted according to the position where the bone powder is pushed out, so as to fill different positions of the bone filling groove.

[0024] In the fourth step, when the bone implanter needs to be put away after use, it is only necessary to move the guide lumen 41, and then when the clamping plates 27 on the two limiting circular plates 22 are clamped in the two positioning grooves 48 provided in the guide lumen 41, the installation is completed. At this time, the guide lumen 41 and the connecting cylinder 21 and the two positioning brackets 25 will not rotate, so that the whole device can be fixed, and the protective plate 45 can protect the end of the guide lumen 41 to avoid collision and other problems when not in use.

[0025] In the present invention, a spiral conveying shaft 35 is arranged in the feeding tube 31, one end of which is fixedly installed with a bevel gear 33, the bevel gear 33 is meshed with the bevel gear 4 34, the bevel gear 4 34 is installed on the transmission shaft 12, and the fixing frame 36 on the inner wall of the feeding tube 31 supports the spiral conveying shaft 35 through a bearing. This structure can realize the spiral conveying of bone powder. When the bone powder is implanted, the spiral conveying method makes the bone powder move evenly and orderly, effectively avoids the accumulation of bone powder, prevents the equipment from being blocked, and ensures the smooth progress of the bone transplantation process.

[0026] In the present invention, through the ingenious meshing design of the linkage mechanism (including flat gear 15, flat gear 3 19, gear transmission belt 18, flat gear 2 17, bevel gear 2 14, bevel gear 13, transmission shaft 12, etc.) and the built-in rack 47 on the implant rod 42, when the implant rod 42 is moved upward, the built-in rack 47 drives the flat gear 15 to rotate, and then through a series of gear transmission, the spiral conveying shaft 35 is rotated to realize bone powder feeding. When the implant rod 42 is pushed toward the end of the guide cavity 41, the spiral conveying shaft 35 will not convey the bone powder downward due to the reverse rotation. At this time, the implant rod 42 can directly squeeze the bone powder in the guide cavity 41 and convey it to the patient's body. This design simplifies the operation process and improves the bone grafting efficiency.

[0027] In the present invention, the flexible adjustment of the end of the guide cavity 41 is achieved by cooperating with the supporting mechanism and the sliding mechanism. The supporting mechanism is composed of two positioning brackets 25 and a connecting cylinder 21. The sliding mechanism includes a limiting circular plate 22, and a reset spring 24 and a limiting slider 26 are installed on its side end. A clamping plate 27 is also fixedly installed. The guide cavity 41 is provided with a groove for the sliding of the clamping plate 27. During the operation, the doctor can rotate the end of the guide cavity 41 according to the requirements of the bone powder implantation position, and accurately transport the bone powder to the target position, thereby improving the accuracy of bone grafting and enhancing the surgical effect.

[0028] In the present invention, a protective plate 45 is arranged between the two positioning brackets 25. The protective plate 45 is made of transparent material, which can effectively prevent debris from falling into the patient's bone socket and reduce the risk of surgical infection. At the same time, the transparent protective plate 45 is convenient for doctors to observe the filling status of bone powder in the bone socket at any time, such as whether the filling amount is sufficient and whether the distribution is uniform, etc., so that doctors can adjust the bone grafting operation in time to ensure the smooth progress of the operation.

[0029] In the present invention, the return spring 24 in the sliding mechanism plays an important role. When the guide lumen 41 moves downward, the limit circular plate 22 in the connecting cylinder 21 squeezes the return spring 24, and the return spring 24 acts as a buffer to prevent the guide lumen 41 from moving downward quickly and damaging surrounding tissues. When the guide lumen 41 reaches a suitable position, the elastic force of the return spring 24 causes the clamping plate 27 to apply pressure to the surface of the guide lumen 41, stably supporting the guide lumen 41, ensuring the stability of the device when in use, and improving the safety of the bone grafting operation.

[0030] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A bone implant for orthopedic surgery, comprising a guide lumen (41), characterized in that: An implant rod (42) is provided in the guide lumen (41), a feeding mechanism is provided on the guide lumen (41), a supporting mechanism is provided at the side end of the guide lumen (41), two sets of sliding mechanisms are provided in the supporting mechanism, a mounting cover (11) is fixedly mounted on the guide lumen (41), and a linkage mechanism is provided between the mounting cover (11) and the guide lumen (41); The feeding mechanism comprises a feeding pipe (31), a bone meal storage bucket (37) is fixedly mounted on the feeding pipe (31), a screw conveying shaft (35) is arranged inside the feeding pipe (31), a bevel gear three (33) is fixedly mounted on the screw conveying shaft (35), a bevel gear four (34) is meshed on the bevel gear three (33), and a transmission shaft (12) is fixedly mounted on the bevel gear four (34); The linkage mechanism comprises a flat gear 1 (15), a bevel gear 2 (14) is provided above the flat gear 1 (15), a bevel gear 1 (13) is meshed on the bevel gear 2 (14), the bevel gear 1 (13) is fixedly mounted on the side end of the transmission shaft (12), a built-in rack (47) is provided on the implant rod (42), and the flat gear 1 (15) is meshed with the built-in rack (47) in the implant rod (42); The support mechanism comprises two positioning brackets (25), a connecting cylinder (21) is provided between the two positioning brackets (25), the sliding mechanism comprises a limiting circular plate (22), a return spring (24) is fixedly mounted on the side end of the limiting circular plate (22), a clamping plate (27) is fixedly mounted on the limiting circular plate (22), a positioning groove (48) is provided on the guide cavity tube (41), and the clamping plate (27) is slidably mounted in the positioning groove (48) provided on the guide cavity tube (41).

2. A bone grafting device for orthopedic surgery according to claim 1, characterized in that: A spur gear 3 (19) is fixedly mounted on the spur gear 1 (15); Wherein, the flat gear three (19) is meshed with a gear transmission belt (18).

3. A bone grafting device for orthopedic surgery according to claim 2, characterized in that: The gear transmission belt (18) is meshed with a second spur gear (17); Wherein, the second flat gear (17) is fixedly mounted on the second bevel gear (14).

4. A bone grafting device for orthopedic surgery according to claim 3, characterized in that: The feed pipe (31), the bone powder storage bucket (37) and the guide cavity (41) are connected through each other; A fixing frame (36) is fixedly mounted on the inner wall of the feed pipe (31), and the screw conveying shaft (35) is fixedly mounted on the fixing frame (36) via a bearing.

5. A bone grafting device for orthopedic surgery according to claim 4, characterized in that: An inner groove (16) is provided in the mounting cover (11); The bevel gear 2 (14), the flat gear 2 (17), the flat gear 3 (19), and the flat gear 1 (15) are all rotatably mounted in the inner groove (16) provided in the mounting cover (11) via a rotating shaft.

6. A bone grafting device for orthopedic surgery according to claim 5, characterized in that: Two limiting grooves (23) are provided in the connecting cylinder (21).

7. A bone grafting device for orthopedic surgery according to claim 6, characterized in that: The limiting circular plates (22) in the two sets of sliding mechanisms are respectively slidably mounted in the two limiting grooves (23); The return springs (24) in the two sets of sliding mechanisms are respectively fixedly mounted on the inner walls of the two limiting grooves (23).

8. The bone grafting device for orthopedic surgery according to claim 7, characterized in that: A protective plate (45) is fixedly installed between the two positioning brackets (25); Wherein, an adjustment slot (46) is provided on the protection plate (45).

9. A bone grafting device for orthopedic surgery according to claim 8, characterized in that: A limit strip (44) is fixedly mounted on the guide lumen (41); The connecting cylinder (21) is slidably mounted in a limited position on the circumferential surface of the guide cavity tube (41) and the limiting strip (44).

10. The bone implanter for orthopedic surgery according to claim 9, characterized in that: A limiting slider (26) is fixedly mounted on the side end of the limiting circular plate (22); The limiting slide blocks (26) in the two sets of sliding mechanisms are respectively installed in the two positioning brackets (25) in a limiting and sliding manner.

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