Automatic heterogeneous blocky bone cutting and finishing mechanical device

By designing an automated heterogeneous block bone cutting and trimming mechanical device, and using scanning instruments and external control platforms to achieve precision trimming, the problem of low degree of automation in the processing of heterogeneous block bones in the prior art is solved, and the trimming accuracy and bone formation effect are improved.

CN119587227APending Publication Date: 2025-03-11FOURTH MILITARY MEDICAL UNIVERSITY
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Patent Information

Application Number
CN202411636225.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-03-11

AI Technical Summary

Technical Problem

The prior art has a low degree of automation in the processing of heterogeneous blocked bones, resulting in inaccurate trimming of bone graft materials, increasing the risk of infection and not being able to fit closely with the alveolar bones, affecting the osteogenesis effect.

Method used

An automated cutting and trimming mechanism for heterogeneous block bones is designed, including a trimming table, a block bone fixing base, scanning instrument, a drive motor and a grinding roller. Through the precision control device of the external control platform, the automatic trimming of heterogeneous block bones is realized.

Benefits of technology

It improves the trimming accuracy of heterogeneous mass bones, makes their size closer to the alveolar bone, reduces rejection, reduces the risk of infection, and promotes the osteogenesis of the bone block.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an automatic dissimilar blocky bone cutting and finishing mechanical device, and relates to the technical field of blocky bone finishing equipment, the automatic dissimilar blocky bone cutting and finishing mechanical device comprises a finishing table, two connecting belts are mounted at the rear end of the finishing table, and a first mounting groove and a second mounting groove are symmetrically formed in the upper end of the finishing table; blocky bone fixing bases are mounted in the first mounting groove and the second mounting groove, and a scanning instrument is mounted in the second mounting groove. According to the external control platform, clinical CT data of a patient is imported, a virtual three-dimensional model of the required bone mass is designed, and a bone block trimming path is set. And by precisely controlling the operation of the device, the personalized xenogeneic blocky bone material is obtained through finishing. By using the device, the time for trimming bone blocks beside a clinical chair can be shortened, operative wounds are reduced, the occurrence rate of infection and the like is reduced, the device can be better attached to the bone surface, and osteogenesis of the bone blocks is promoted.
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Description

Technical Field

[0001] The invention relates to the technical field of block bone trimming equipment, and in particular to an automated heterogeneous block bone cutting and trimming mechanical device. Background Art

[0002] Alveolar bone defects caused by odontogenic inflammation, maxillofacial trauma, alveolar bone resorption after tooth extraction, tumor resection, and congenital diseases are clinical problems that dentists often see and are difficult to deal with, which will seriously affect the patient's oral function recovery. Onlay bone grafting is to place autologous or exogenous bone and bone replacement materials directly in the surgical area and fix them, thereby increasing the three-dimensional bone volume of the alveolar bone. Its osteogenesis effect is direct and its tissue support capacity is excellent. It has become one of the important methods to solve moderate and severe bone defects. Among them, allogeneic xenogeneic bone has a wide source and low cost. It can overcome the shortage of autologous bone materials and has a very broad prospect for clinical application.

[0003] At present, the heterogeneous block bone materials commonly used in clinical practice are all made of standard parts, but due to the great differences in the alveolar bone defect status of patients, rough trimming is often required during surgery. The increased exposure time of the bone graft material may increase the probability of complications such as infection, and the trimmed material cannot fit the bone surface, which is not conducive to osteogenesis. In order to avoid the above problems, the existing block bone processing is reprocessed by manual processing in the later stage, but the degree of automation in the entire processing process is poor. Summary of the invention

[0004] The object of the present invention is to provide an automated heterogeneous block bone cutting and trimming mechanical device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automated heterogeneous block bone cutting and trimming mechanical device, comprising a trimming table, two connecting belts are installed at the rear end of the trimming table, a first mounting groove and a second mounting groove are symmetrically opened at the upper end of the trimming table, a block bone fixing base is installed inside the first mounting groove and the second mounting groove, a scanning instrument is installed inside the second mounting groove, and the scanning instrument is electrically connected to an external control platform through a connecting belt, a longitudinal groove is opened on the surface of the inner side wall of the first mounting groove, a transverse groove is opened at a position below the longitudinal groove and located at the bottom end of the first mounting groove, and the two ends of the transverse groove are respectively connected to the block bone fixing base and the side wall of the first mounting groove, a transverse rod is slidably connected inside the longitudinal groove, an electric push rod is installed at the other end of the transverse rod, and a grinding roller is rotatably connected to the other end of the electric push rod, a threaded rod is rotatably connected inside the transverse groove, one end of the threaded rod is connected to a driving motor, a moving block is threadedly connected to the surface of the threaded rod, and a lifting push rod is installed on the upper end of the moving block, and the upper end of the lifting push rod is connected to the lower end of the transverse rod.

[0006] Preferably, an extension block is installed at both upper and lower ends of the outer side of the electric push rod, and the grinding roller is rotatably connected between the two extension blocks.

[0007] Preferably, a driven gear is installed at the upper end of the grinding roller, a guide groove is opened at the upper end of the cross bar, a first connecting rod is slidably connected inside the guide groove, one end of the first connecting rod extends to the outside of the guide groove and passes through an extension block, a fixed rack is installed on the side wall surface of the first connecting rod located outside the guide groove, the fixed rack is meshingly connected with the driven gear, and the lowest end of the guide groove is higher than the highest end of the electric push rod.

[0008] Preferably, a rotating gear is rotatably connected to the edge of the upper end of the cross bar, and a driving motor is connected to the lower end of the rotating gear. A plurality of equidistant and array-distributed mounting holes are provided on the surface of the rotating gear. A rotating shaft is rotatably connected to the inside of any one of the mounting holes, and a second connecting rod is rotatably connected to the upper end of the rotating shaft, and the other end of the second connecting rod is rotatably connected to the first connecting rod via the rotating shaft.

[0009] Preferably, another connecting belt at the rear end of the trimming table is connected to a data converter, and at least two data sockets are provided at the upper end of the data converter, one of the data sockets is connected to an external control platform via a data cable, and the other data socket is used to import clinical CT data.

[0010] Preferably, a cover is installed at the upper end of each of the first mounting groove and the second mounting groove, an extrusion block smaller in size than the first mounting groove is rotatably installed at the lower end of the cover, and a cushion is installed at the lower end of the extrusion block.

[0011] Preferably, the external control platform is electrically connected to the scanner, the data converter, the two drive motors and the electric push rod.

[0012] Preferably, two control buttons are symmetrically installed on the surface of the dressing table, a display platform is installed on the surface of the dressing table at a position outside the control buttons, the control button and the display platform are both electrically connected to the external control platform, and a driving device is installed at the lower end of the block bone fixation base, and the driving device is electrically connected to the control button.

[0013] Preferably, an equipment warehouse is provided at the rear end of the dressing table, and an equipment disinfection warehouse and an equipment placement warehouse are provided inside the equipment warehouse. Both the equipment disinfection warehouse and the equipment placement warehouse are sterile environments, and ultraviolet disinfection lamps are installed inside the equipment disinfection warehouse and the equipment placement warehouse, and a high-temperature disinfection component is arranged inside the equipment disinfection warehouse.

[0014] Preferably, a radiation sterilization lamp is installed below the cover and outside the extrusion block; an inlet and outlet are provided at the inner bottom of the first installation groove, which are connected to a disinfectant supply device via a pipeline; and an indicator scale is provided on the side wall surface of the first installation groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The automatic heterogeneous block bone cutting and trimming mechanical device places the main block bone in the block bone fixing base inside the second installation groove, and places the heterogeneous block bone in the block bone fixing base inside the first installation groove. The shape and size of the main block bone are transmitted to the external control platform in the form of electrical signals through a scanning instrument, and the external control platform performs data analysis and controls the driving motor to drive the threaded rod to rotate. When the threaded rod rotates, the moving block drives the lifting push rod and the grinding roller to move along the length direction of the threaded rod, and then the height position of the cross bar is changed by the lifting push rod. The size of the groove is limited to a certain extent. The electric push rod can be used to further change the horizontal movement position of the grinding roller to trim the heterogeneous block bone. The operation of the device can be precisely controlled by an external control platform. When trimming the heterogeneous block bone, the size of the heterogeneous block bone can be made close to the size of the alveolar bone to a large extent, which is more convenient for patients to use and reduces rejection reactions to a certain extent. The use of the present invention can not only reduce the time for clinical chairside bone trimming, reduce surgical trauma, and reduce the incidence of infections and the like, but also can better fit the bone surface and promote bone formation.

[0017] 2. This automated heterogeneous block bone cutting and trimming mechanical device can integrate CBCT and oral scan data from clinical use by setting up a data converter to cooperate with an external control platform to control the operation of the internal equipment of the trimming station. Different users will use different software for scanning and modeling. The data converter can enhance the adaptability of the device.

[0018] 3. The automatic heterogeneous block bone cutting and trimming mechanical device installs an extrusion block at the lower end of the cover and a soft pad at the lower end of the extrusion block. When the block bone is placed in the first mounting groove or the second mounting groove, the upper end of the first mounting groove or the second mounting groove needs to be closed by the cover. At this time, the soft pad at the lower end of the extrusion block will be clamped with the upper end of the block bone, and then cooperate with the block bone fixing base to clamp and limit the block bone in the upper and lower directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the first installation slot and the second installation slot of the present invention;

[0021] Figure 3 For the present invention Figure 2 A magnified view of middle;

[0022] Figure 4 It is a schematic structural diagram of the second connecting rod and the first connecting rod of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the extension block of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the sealing cover of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of the extrusion block of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the equipment warehouse of the present invention.

[0027] In the figure: 1. dressing table; 2. first mounting slot; 3. connecting belt; 4. data converter; 5. data socket; 6. control button; 7. display platform; 8. second mounting slot; 9. block bone fixing base; 10. scanning instrument; 11. longitudinal slot; 12. transverse slot; 13. threaded rod; 14. moving block; 15. lifting push rod; 16. transverse rod; 17. first connecting rod; 18. grinding roller; 19. second connecting rod; 20. rotating gear; 21. mounting hole; 22. guide slot; 23. fixed rack; 24. driven gear; 25. electric push rod; 26. extension block; 27. cover; 28. extrusion block; 29. ​​cushion; 30. irradiation sterilization lamp; 31. indication scale; 32. import and export; 33. equipment warehouse; 3301. equipment disinfection warehouse; 3302. equipment placement warehouse. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] like Figures 1 to 8As shown, the automatic heterogeneous block bone cutting and trimming mechanical device of this embodiment includes a trimming table 1, and two connecting belts 3 are installed at the rear end of the trimming table 1. The connecting belts 3 are data lines for transmitting electrical signals. The upper end of the trimming table 1 is symmetrically provided with a first mounting groove 2 and a second mounting groove 8. The first mounting groove 2 and the second mounting groove 8 have the same size and are symmetrically installed at the upper end of the trimming table 1. Block bone fixing bases 9 are installed inside the first mounting groove 2 and the second mounting groove 8. The block bone fixing base 9 is used to place block bones, wherein the outer wall and the bottom of the block bone fixing base 9 are made of hard plastic material. The interior is a sponge material with strong repairability. A scanning instrument 10 is installed inside the second mounting groove 8. The scanning instrument 10 is electrically connected to an external control platform (such as a CNC programming platform) through a connecting belt 3. The shape and size of the autologous block bone inside the second mounting groove 8 can be scanned by the scanning instrument 10, and transmitted to the external platform through a connecting belt 3. A longitudinal groove 11 is opened on the inner side wall surface of the first mounting groove 2, and a transverse groove 12 is opened at the bottom end of the first mounting groove 2 below the longitudinal groove 11. The two ends of the transverse groove 12 are respectively connected to the block bone fixing base 9 and the side wall of the first mounting groove 2 The longitudinal groove 11 and the transverse groove 12 are connected, the longitudinal groove 11 and the transverse groove 12 are located in the same plane, the longitudinal groove 11 is slidably connected with a transverse rod 16 inside, and the transverse rod 16 can be lifted and lowered inside the longitudinal groove 11 under the action of external force, and the other end of the transverse rod 16 is installed with an electric push rod 25, and the other end of the electric push rod 25 is rotatably connected with a grinding roller 18, and the electric push rod 25 can drive the grinding roller 18 to move horizontally, and the interior of the transverse groove 12 is rotatably connected with a threaded rod 13, and one end of the threaded rod 13 is connected with a driving motor, which is installed inside the dressing table 1, and the output end of the driving motor is connected to the threaded rod 13, through The overdrive motor can drive the threaded rod 13 to rotate. The surface of the threaded rod 13 is threadedly connected with a moving block 14. A lifting push rod 15 is installed on the upper end of the moving block 14. The upper end of the lifting push rod 15 is connected to the lower end of the cross bar 16. When the threaded rod 13 rotates, it will drive the moving block 14 and the lifting push rod 15 to move along the length direction of the threaded rod 13, and then change the height position of the cross bar 16 through the lifting push rod 15. Since the size of the cross groove 12 is limited, the electric push rod 25 can be used to further change the horizontal movement position of the grinding roller 18 to trim the heterogeneous block bone.

[0031] Specifically, an extension block 26 is installed at both upper and lower ends of the outer side of the electric push rod 25, and the grinding roller 18 is rotatably connected between the two extension blocks 26. The grinding roller 18 is clamped in the upper and lower directions by the two extension blocks 26, and the grinding roller 18 and the electric push rod 25 do not contact each other.

[0032] Furthermore, a driven gear 24 is installed at the upper end of the grinding roller 18, a guide groove 22 is opened at the upper end of the cross bar 16, a first connecting rod 17 is slidably connected inside the guide groove 22, one end of the first connecting rod 17 extends to the outside of the guide groove 22 and passes through an extension block 26, a fixed rack 23 is installed on the side wall surface of the first connecting rod 17 located outside the guide groove 22, the fixed rack 23 is meshed with the driven gear 24, the lowest end of the guide groove 22 is higher than the highest end of the electric push rod 25, and the guide groove 22 is used to limit the first connecting rod 17. The moving trajectory of the connecting rod 17, when the first connecting rod 17 performs regular reciprocating motion inside the guide groove 22, will drive the fixed rack 23 to move synchronously, and then the driven gear 24 will perform regular reciprocating rotation, so that the grinding roller 18 will perform synchronous regular reciprocating rotation. The internal rotation within a certain angle range can reduce the rotation amplitude of the grinding roller 18, and at the same time increase the rotation frequency of the grinding roller 18, so that the grinding roller 18 can efficiently trim the block bone, and the trimming area becomes smaller, so that the trimming accuracy is higher.

[0033] Furthermore, a rotating gear 20 is rotatably connected to the edge position of the upper end of the cross bar 16, and a driving motor is connected to the lower end of the rotating gear 20. A plurality of equidistant and array-distributed mounting holes 21 are provided on the surface of the rotating gear 20. A rotating shaft is rotatably connected to the inside of any mounting hole 21, and a second connecting rod 19 is rotatably connected to the upper end of the rotating shaft. The other end of the second connecting rod 19 is rotatably connected to the first connecting rod 17 through the rotating shaft, and the rotating gear 20 is driven to rotate by the driving motor. The second connecting rod 19 can be placed in any mounting hole 21. When the rotating gear 20 rotates, the second connecting rod 19 performs regular reciprocating rotation, thereby driving the first connecting rod 17 to move inside the guide groove 22.

[0034] Furthermore, two control buttons 6 are symmetrically installed on the surface of the dressing table 1, and a display platform 7 is installed on the surface of the dressing table 1 at a position outside the control buttons 6. The control buttons 6 and the display platform 7 are electrically connected to the external control platform. The two control buttons 6 are respectively used to control the signal transmission of the scanner and the external control platform. After pressing the first control button 6, the scanner will scan. When the scanner completes the scan and transmits it to the external control platform, it will be displayed on the display platform 7. At this time, press the second control button 6, and the external control platform will control the relevant electrical equipment to perform trimming on the autologous block bone inside the first mounting groove 2.

[0035] Furthermore, another connecting belt 3 at the rear end of the trimming table 1 is connected to a data converter 4. By setting the data converter 4, data signals of different software can be integrated to cooperate with the external control platform to control the operation of the internal equipment of the trimming table 1. Different users will use different software for scanning and modeling. Through the data converter 4, the adaptability of the device can be enhanced. At least two data sockets 5 are provided at the upper end of the data converter 4. One data socket 5 is connected to the external control platform through a data line, and the other data socket 5 is used to import clinical CT data. In actual use, the other data socket 5 can be connected to an external instrument with the help of a data line. The external instrument uses the clinical CT data to design a virtual three-dimensional model of the required bone volume. After the model data is transmitted to the data converter 4 through the data socket 5 for processing, the data is fed back to the external control platform through a data socket 5. The bone block trimming path and other programming work are set through the external control platform (CNC equipment programming platform). Through the operation of the precision control device, personalized heterogeneous block bone material is trimmed.

[0036] Furthermore, a cover 27 is installed at the upper end of the first mounting groove 2 and the second mounting groove 8, and an extrusion block 28 whose size is smaller than that of the first mounting groove 2 is installed at the lower end of the cover 27, and a cushion 29 is installed at the lower end of the extrusion block 28. By installing the extrusion block 28 at the lower end of the cover 27 and the cushion 29 at the lower end of the extrusion block 28, when the block bone is placed in the first mounting groove 2 or the second mounting groove 8, the upper end of the first mounting groove 2 or the second mounting groove 8 needs to be closed by the cover 27. At this time, the cushion 29 at the lower end of the extrusion block 28 will be clamped with the upper end of the block bone, and then cooperate with the block bone fixing base 9 to clamp and limit the block bone in the upper and lower directions.

[0037] Furthermore, the external control platform is electrically connected to the scanner, data converter 4, two drive motors, electric push rod 25 and other electrical appliances. The operation of the device is precisely controlled by the external control platform. When trimming the heterologous block bone, the size of the heterologous block bone can be made close to the size of the autologous block bone to a large extent, which is more convenient for patients to use and reduces rejection reactions to a certain extent. A drive device is installed at the lower end of the block bone fixing base 9, and the drive device is electrically connected to the control button 6. When the user presses the second control button 6, the drive device will automatically drive the block bone fixing base 9 to rotate, and then cooperate with the device for trimming.

[0038] Furthermore, an equipment warehouse 33 is provided at the rear end of the dressing table 1, and an equipment disinfection warehouse 3301 and an equipment placement warehouse 3302 are provided inside the equipment warehouse 33. Both the equipment disinfection warehouse 3301 and the equipment placement warehouse 3302 are sterile environments. Ultraviolet disinfection lamps are installed inside the equipment disinfection warehouse 3301 and the equipment placement warehouse 3302. A high-temperature disinfection component is provided inside the equipment disinfection warehouse 3301. For example, a heating and disinfection component with a temperature controller is used to perform high-temperature heating and ultraviolet disinfection at the same time. The interior of the equipment warehouse 33 is used to place cutting tools for dressing. The cutting tools are placed in the equipment disinfection warehouse 3301 for disinfection. The disinfected cutting tools are placed in the equipment placement warehouse 3302 for storage. They are still disinfected by ultraviolet light during storage. When xenogeneic bone dressing is required, the cutting tools are taken out from the sterile environment of the equipment placement warehouse 3302 for use. If necessary, the block bone to be processed can be placed in the equipment warehouse 33 for preliminary disinfection to ensure that the entire processing process is always in a sterile environment.

[0039] Furthermore, an irradiation sterilization lamp 30 is installed below the cover 27 and outside the extrusion block 28. The irradiation sterilization lamp 30 is a cobalt 60 irradiation sterilization device, which can disinfect the heterogeneous block bones that need to be polished inside. The irradiation sterilization lamp 30 is connected to an external power supply; an inlet and outlet 32 ​​is provided at the bottom end of the inner part of the first installation groove 2, and the inlet and outlet 32 ​​is connected to the disinfectant supply equipment through a pipeline. An indicator scale 31 is provided on the side wall surface of the first installation groove 2. Considering the problem of poor irradiation sterilization effect, before trimming the heterogeneous block bones, it is necessary to inject sterile liquid or sterilization and disinfection liquid into the interior of the first installation groove 2. It should be noted that the height of the sterile liquid should be slightly higher than the indicator scale 31. At this time, when the cover 27 closes the first installation groove 2, the extrusion block 28 and the cushion 29 at the lower end of the cover 27 will be in sealing contact with the sterile liquid. During the processing, the liquid is extracted with the help of an external supply device.

[0040] The method of use of this embodiment is as follows: by placing the main block bone in the block bone fixing base 9 inside the second installation groove 8, placing the heterologous block bone in the block bone fixing base 9 inside the first installation groove 2, transmitting the shape and size of the main block bone to the external control platform in the form of an electrical signal through the scanning instrument 10, performing data analysis through the external control platform (CNC programming platform), and controlling the drive motor to drive the threaded rod 13 to rotate. When the threaded rod 13 rotates, the moving block 14 will drive the lifting push rod 15 and the grinding roller 18 to move along the length direction of the threaded rod 13, and then the lifting push rod 15 will change the height position of the cross bar 16. Since the size of the cross groove 12 is limited to a certain extent, the electric push rod 25 can be used to further change the horizontal movement position of the grinding roller 18 to trim the heterologous block bone. The operation of the device is precisely controlled by the external control platform. When trimming the heterologous block bone, the size of the heterologous block bone can be made close to the size of the autologous block bone to a large extent, thereby making it more convenient for patients to use and reducing rejection reactions to a certain extent.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automated heterogeneous block bone cutting and trimming mechanical device, comprising a trimming table (1), characterized in that: The rear end of the trimming table (1) is provided with two connecting belts (3); the upper end of the trimming table (1) is symmetrically provided with a first mounting groove (2) and a second mounting groove (8); a block-shaped bone fixing base (9) is installed inside the first mounting groove (2) and the second mounting groove (8); a scanning device (10) is installed inside the second mounting groove (8); the scanning device (10) is electrically connected to an external control platform via a connecting belt (3); a longitudinal groove (11) is provided on the inner side wall surface of the first mounting groove (2); a transverse groove (12) is provided below the longitudinal groove (11) and at the bottom end of the first mounting groove (2); both ends of the transverse groove (12) are provided with a plurality of connecting belts (3); The longitudinal groove (11) is connected to the block bone fixing base (9) and the side wall of the first installation groove (2) respectively; a cross bar (16) is slidably connected inside the longitudinal groove (11); an electric push rod (25) is installed at the other end of the cross bar (16); a grinding roller (18) is rotatably connected to the other end of the electric push rod (25); a threaded rod (13) is rotatably connected inside the transverse groove (12); one end of the threaded rod (13) is connected to a driving motor; a moving block (14) is threadedly connected to the surface of the threaded rod (13); a lifting push rod (15) is installed at the upper end of the moving block (14); the upper end of the lifting push rod (15) is connected to the lower end of the cross bar (16).

2. The automated heterogeneous block bone cutting and trimming mechanical device according to claim 1, characterized in that: An extension block (26) is installed at both upper and lower ends of the outer side of the electric push rod (25), and the grinding roller (18) is rotatably connected between the two extension blocks (26).

3. The automated heterogeneous block bone cutting and trimming mechanical device according to claim 2, characterized in that: A driven gear (24) is installed at the upper end of the grinding roller (18), a guide groove (22) is opened at the upper end of the cross bar (16), a first connecting rod (17) is slidably connected inside the guide groove (22), one end of the first connecting rod (17) extends to the outside of the guide groove (22) and passes through an extension block (26), a fixed rack (23) is installed on the side wall surface of the first connecting rod (17) located outside the guide groove (22), the fixed rack (23) is meshingly connected with the driven gear (24), and the lowest end of the guide groove (22) is higher than the highest end of the electric push rod (25).

4. The automated heterogeneous block bone cutting and trimming mechanical device according to claim 3, characterized in that: The edge of the upper end of the cross bar (16) is rotatably connected to a rotating gear (20), and the lower end of the rotating gear (20) is connected to a driving motor. The surface of the rotating gear (20) is provided with a plurality of mounting holes (21) that are equidistant and distributed in an array. A rotating shaft is rotatably connected inside any one of the mounting holes (21), and the upper end of the rotating shaft is rotatably connected to a second connecting rod (19), and the other end of the second connecting rod (19) is rotatably connected to the first connecting rod (17) via the rotating shaft.

5. The automated heterogeneous block bone cutting and trimming mechanical device according to claim 4, characterized in that: Another connecting belt (3) at the rear end of the trimming table (1) is connected to a data converter (4), and at least two data sockets (5) are provided at the upper end of the data converter (4), one of the data sockets (5) is connected to an external control platform via a data line, and the other data socket (5) is used to import clinical CT data.

6. The automated heterogeneous block bone cutting and trimming mechanical device according to claim 1, characterized in that: The upper ends of the first mounting groove (2) and the second mounting groove (8) are both equipped with a cover (27), the lower end of the cover (27) is rotatably equipped with an extrusion block (28) smaller in size than the first mounting groove (2), and the lower end of the extrusion block (28) is equipped with a soft pad (29).

7. The automated heterogeneous block bone cutting and trimming mechanical device according to claim 5, characterized in that: The external control platform is electrically connected to the scanner, the data converter (4), the two drive motors and the electric push rod (25).

8. The automated heterogeneous block bone cutting and trimming mechanical device according to claim 1, characterized in that: Two control buttons (6) are symmetrically mounted on the surface of the trimming platform (1); a display platform (7) is mounted on the surface of the trimming platform (1) at a position outside the control buttons (6); the control buttons (6) and the display platform (7) are both electrically connected to the external control platform; a driving device is mounted at the lower end of the block bone fixation base (9); the driving device is electrically connected to the control buttons (6).

9. The automated heterogeneous block bone cutting and trimming mechanical device according to claim 1, characterized in that: The rear end of the dressing table (1) is provided with an equipment warehouse (33), and the interior of the equipment warehouse (33) is provided with an equipment disinfection warehouse (3301) and an equipment placement warehouse (3302). Both the equipment disinfection warehouse (3301) and the equipment placement warehouse (3302) are sterile environments. Ultraviolet disinfection lamps are installed inside the equipment disinfection warehouse (3301) and the equipment placement warehouse (3302), and a high-temperature disinfection component is arranged inside the equipment disinfection warehouse (3301).

10. The automated heterogeneous block bone cutting and trimming mechanical device according to claim 6, characterized in that: A radiation sterilization lamp (30) is installed below the sealing cover (27) and outside the extrusion block (28); An inlet and outlet (32) is provided at the inner bottom of the first installation groove (2), and the inlet and outlet (32) is connected to a disinfectant supply device via a pipeline. An indicating scale (31) is provided on the side wall surface of the first installation groove (2).