A combined reconstruction device for acetabular bone defects

Abstract

The present invention provides a combined reconstruction device for acetabular bone defects, which belongs to the field of medical device technology. The device includes a frame, the bottom of the frame is fixedly connected to a second linear slide, the top of the second linear slide is fixedly connected to a hydraulic cylinder, the top of the frame is fixedly connected to a first linear slide, and the top of the first linear slide is fixedly connected to a travel board; a lifting assembly, the lifting assembly is used to lift the patient to a height level with the travel board; and a support assembly, the support assembly is not only used to support the patient's waist, but also used to cooperate with the locking lifting assembly. By setting up a lifting assembly, the present invention can not only automatically lift the user to a position level with the travel board, but also allow the user to automatically transfer to the surface of the travel board without moving. During the above process, the user does not need to twist or move the body, thereby ensuring the stability of the user's body during transfer.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a combined reconstruction device for acetabulum bone defects. Background Art

[0002] In recent years, with the rapid development and promotion of 3D printing technology, 3D printing technology can now be used to create structural models and medical implants, which significantly helps surgeons plan and perform operations more accurately. The application of 3D printing technology in acetabular bone defect reconstruction mainly includes individualized customized anatomical models, preoperative simulation surgery and personalized customized prostheses. Using 3D printing technology to print an actual-size pelvic model, surgeons can fully understand anatomical abnormalities and develop a more complete surgical plan.

[0003] In combined reconstruction surgery for acetabular bone defects, in complex situations with extensive bone defects, traditional planning using X-rays and traditional CT scans may not accurately reflect the patient's actual condition. Instead, the acetabular bone defect site is scanned and determined by a scanning device, the defect condition is analyzed, and an acetabular bone repair model is printed out using 3D printing technology based on the defect condition. The manufactured acetabular bone repair model can better enable doctors to understand preoperative anatomical problems and minimize intraoperative problems. The use of the acetabular bone repair model in preoperative planning can help doctors shorten intraoperative fluoroscopy time, reduce bleeding, and shorten operation time.

[0004] In the above-mentioned related technologies, during the scanning of the patient's acetabulum, the patient is generally transferred from a stretcher or wheelchair to the device, and the cooperation and assistance of multiple staff members are required at the same time. In addition, the patient's body needs to be twisted and bent during the transfer process. Therefore, the operator and the patient must be extra careful to prevent bumps and collisions, especially the patient's waist position, which makes the patient's transfer process less efficient and safe. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a combined reconstruction device for acetabular bone defects, so as to solve the problems of low transport efficiency and potential safety hazards when users use existing reconstruction devices.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A combined reconstruction device for acetabular bone defects comprises a frame, a scanning unit is installed at one end of the frame, the scanning unit is used to scan the patient's acetabulum, a 3D printing unit is installed at the other end of the frame, the 3D printing unit is used to physically print out the patient's acetabular bone model scanned by the scanning unit, the bottom of the frame is fixedly connected to a second linear slide rail, the top of the second linear slide rail is fixedly connected to a hydraulic cylinder, the top of the frame is fixedly connected to a first linear slide rail, the top of the first linear slide rail is fixedly connected to a trip plate; a lifting component, the lifting component is used to lift the patient to a height level with the trip plate, the lifting component is divided into two states before and after lifting, the lifting component is connected to the hydraulic cylinder before lifting, and is respectively connected to the hydraulic cylinder and the trip plate after lifting; a support component, the support component is not only used to support the patient's waist, but also used to cooperate and lock the lifting component, the support component is respectively connected to the trip plate and the lifting component after lifting.

[0008] Optionally, the lifting assembly includes a base tray fixedly connected to the output end of the hydraulic cylinder, a sliding seat plate is slidably connected to the base tray, a rotating seat plate is rotatably connected to the sliding seat plate, a seat plate positioning groove adapted to the shape of the sliding seat plate is provided on the trip plate, the rotating seat plate can slide into the seat plate positioning groove together with the sliding seat plate, and the support assembly is connected to the rotating seat plate after sliding into the seat plate positioning groove.

[0009] Optionally, limiting blocks are fixedly connected to both side walls of the sliding seat plate, and limiting plates that are adapted to the shape of the limiting blocks are symmetrically installed on both side inner walls of the base tray and both side inner walls of the seat plate positioning groove.

[0010] Optionally, the bottom of the rotating seat plate and the top of the sliding seat plate are both provided with limiting balls, the middle position of the top of the rotating seat plate is an inwardly concave arc structure, and the top edge position of the rotating seat plate is provided with anti-slip grooves.

[0011] Optionally, a side panel is fixedly connected to one end of the base tray close to the trip plate, a protrusion is fixedly connected to the bottom outer wall of the trip plate close to the base tray, a recessed portion matching the shape of the protrusion is provided on the top of the side panel, and a weakening groove is provided at the connection position between the side panel and the bottom tray.

[0012] Optionally, a positioning block is fixedly connected to the inner wall of the side panel close to the sliding seat panel and the inner wall of the seat panel positioning groove away from the base tray, and a positioning slot that matches the shape of the positioning block is provided on the outer wall of the sliding seat panel close to the side panel.

[0013] Optionally, the support assembly includes a waist and back support plate fixedly connected to the upper surface of the running board and having a curved structure. The upper surface of the running board is fixedly connected to spring plates distributed in a linear arrangement. One end of the spring plate is fixedly connected to an arc-shaped support plate. A Y-shaped pressure plate is fixedly connected to the inner wall of the waist and back support plate.

[0014] Optionally, the number of the spring plates and the number of the arc-shaped support plates are both four, and the outer wall of the arc-shaped support plate and the inner wall of the waist and back support plate are in conflict with each other.

[0015] Optionally, a first curved plate is fixedly connected to the middle position of the Y-shaped pressure plate, a second curved plate is fixedly connected to one end of the Y-shaped pressure plate, the upper surface of the trip plate is fixedly connected to a first guide plate located at the bottom of the second curved plate, and the upper surface of the trip plate is fixedly connected to a second guide plate located at the bottom of the second curved plate.

[0016] Optionally, a locking plug is fixedly connected to one end of the Y-shaped pressure plate away from the second arc-shaped plate, and a locking slot that is adapted to the shape of the locking plug is opened on the outer wall of the rotating seat plate.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, by setting up a lifting component, not only can the user be automatically lifted to a position at the same height as the trip board, but the user can also be automatically transferred to the surface of the trip board without moving. During the above process, the user does not need to twist or move his body, thereby ensuring the stability of the user's body during the transfer.

[0019] By arranging a limit block and a limit plate in the lifting assembly, since the shapes of the limit block and the limit plate are adapted to each other, and when the two are snapped together, an arc structure similar to the shape of a snail is formed, such a structure allows the limit block and the limit plate to bite into each other, thereby improving the stability and firmness of the cooperation between the two. When the user pushes the sliding seat plate into the seat plate positioning groove, the limit block on the sliding seat plate disengages from the limit plate on the base tray, and then is seamlessly snapped into the limit plate inside the seat plate positioning groove. Such an arrangement can not only achieve the transfer effect of the sliding seat plate, but also greatly improve the stability of the sliding seat plate during the transfer process. The arrangement of the above structure can further improve the stability of the patient's body during the operation of the lifting assembly, as well as the convenience during the operation of the lifting assembly, thereby improving the overall practicality of the lifting assembly.

[0020] By setting side panels in the lifting assembly, the side panels can not only limit the sliding seat panels, but also automatically release the limiting effect on the side panels when the sliding seat panels are lifted to the trip plate position. The above design can not only improve the stability of the sliding seat panels during the lifting process, but also does not require the operator to perform any operations during the process of releasing the limit, thereby improving the convenience of the lifting assembly operation.

[0021] By setting up a support component, the user's waist can be automatically supported. After the user's waist is supported, it is more convenient for the scanning unit to perform scanning processing. Moreover, with the cooperation of the spring piece and the arc-shaped support plate, the waist and back support plate has a certain buffering and shock-absorbing function for the user's waist. Such a setting can not only improve the comfort of the user's waist, but also prevent the user from accidentally injuring the user's waist due to the vibration force generated by the movement of the first linear slide rail during the transfer process.

[0022] By arranging a Y-shaped pressure plate, two groups of arc plates and two groups of guide plates in the support assembly, when the waist and back support plate is pressed and deformed, the two groups of arc plates cooperate with the arc setting of the two groups of guide plates, and with the help of the extrusion force during the deformation of the waist and back support plate, the locking plug at one end of the Y-shaped pressure plate is directly engaged and abutted against the locking slot on the rotating seat plate, thereby achieving a limiting effect on the rotating seat plate, so that the user's buttocks cannot rotate during the scanning process, which improves the stability of the user's buttocks and the accuracy of the scanning.

[0023] By setting up the lifting component and the supporting component, from the perspective of the device's usage process, the two components complement each other functionally and are seamlessly connected, and both components can provide users with a more comfortable and safe use environment. From a structural point of view, the two components can form a structural coordination, and the effect achieved by the coordination is to limit the lifting component with the help of the supporting component, thereby further improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the combined reconstruction device for acetabular bone defects of the present invention;

[0026] Figure 2 An enlarged three-dimensional structural diagram of the frame, lifting assembly and supporting assembly;

[0027] Figure 3 To enhance the coordination of components, an enlarged schematic diagram of the three-dimensional structure is provided;

[0028] Figure 4 It is a schematic diagram of the sectional three-dimensional structure of the base tray, sliding seat plate, rotating seat plate and side plates;

[0029] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the base tray, sliding seat plate and rotating seat plate;

[0030] Figure 6 It is a partial cross-sectional structural diagram of the base tray, sliding seat plate and rotating seat plate;

[0031] Figure 7 It is a cross-sectional structural diagram of the base tray, sliding seat plate, rotating seat plate and side plates;

[0032] Figure 8 An enlarged schematic diagram of the three-dimensional structure for the coordination of the lifting assembly and the supporting assembly;

[0033] Figure 9 It is a schematic diagram of the partially enlarged structure of the side panels and the runner panels;

[0034] Figure 10 It is a schematic diagram of the cross-sectional three-dimensional structure of the support assembly;

[0035] Figure 11 This is an enlarged three-dimensional structural diagram of the arc-shaped support plate and the spring piece;

[0036] Figure 12 It is a schematic diagram of the cross-sectional structure of the support assembly;

[0037] Figure 13 It is a schematic diagram of the enlarged three-dimensional structure of the Y-shaped pressure plate, the first guide plate and the second guide plate.

[0038] [Reference Signs]

[0039] 1. Frame; 2. Scanning unit; 3. 3D printing unit; 4. Hydraulic cylinder; 5. Base tray; 6. Sliding seat plate; 7. Rotating seat plate; 8. Side plate; 9. Limit block; 10. Limit plate; 11. Limit ball; 12. Positioning slot; 13. Positioning insert; 14. Recessed portion; 15. Weakened groove; 16. First linear guide rail; 17. Travel plate; 18. Seat plate positioning groove; 19. Back support plate; 20. Raised portion; 21. Arc support plate; 22. Spring piece; 23. Y-type pressure plate; 24. First arc plate; 25. Second arc plate; 26. Locking insert; 27. First guide plate; 28. Second guide plate; 29. ​​Locking slot; 30. Second linear guide rail.

[0040] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0041] The following describes in detail a combined reconstruction device for acetabular bone defects provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are optimal and preferred embodiments, and those skilled in the art may employ alternative implementations for known techniques. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0042] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0043] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0044] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0045] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0046] like Figures 1 to 13 As shown, an embodiment of the present invention provides a combined reconstruction device for acetabular bone defects, including a frame 1, a scanning unit 2 is installed at one end of the frame 1, the scanning unit 2 is used to scan the patient's acetabulum, and a 3D printing unit 3 is installed at the other end of the frame 1, the 3D printing unit 3 is used to physically print out the patient's acetabular bone model scanned by the scanning unit 2, the bottom of the frame 1 is fixedly connected to a second linear slide 30, the top of the second linear slide 30 is fixedly connected to a hydraulic cylinder 4, the top of the frame 1 is fixedly connected to a first linear slide 16, and the top of the first linear slide 16 is fixedly connected to a trip plate 17; a lifting component, the lifting component is used to lift the patient to a height level with the trip plate 17, and the lifting component is divided into two states before and after lifting. The lifting component is connected to the hydraulic cylinder 4 before lifting, and is respectively connected to the hydraulic cylinder 4 and the trip plate 17 after lifting; a support component, the support component is not only used to support the patient's waist, but also used to cooperate with the locking lifting component, and the support component is respectively connected to the trip plate 17 and the lifting component after lifting.

[0047] During the use of the device, the patient is first lifted to the same height as the trip board 17 using the lifting assembly, and then the patient is slid onto the trip board 17. When the patient lies flat on the surface of the trip board 17, the support assembly can not only support the patient's waist but also limit the lifting assembly. After the patient lies down, the first linear slide 16 operates to transport the trip board 17 together with the patient to the scanning unit 2. The scanning unit 2 is used to scan the patient's lumbar acetabulum. The scanned results are processed by the computer and transmitted to the 3D printing unit 3, and the 3D printing unit 3 prints a solid model of the patient's acetabulum. After the patient is scanned, the first linear slide 16 operates again and moves the patient to the initial position. At this time, the patient can be quickly transferred from the device with the help of the lifting assembly.

[0048] like Figures 1 to 7As shown, the lifting assembly includes a base tray 5 fixedly connected to the output end of the hydraulic cylinder 4, a sliding seat plate 6 is slidably connected to the base tray 5, and a rotating seat plate 7 is rotatably connected to the sliding seat plate 6. A seat plate positioning groove 18 that is adapted to the shape of the sliding seat plate 6 is provided on the trip plate 17, and the rotating seat plate 7 can slide into the seat plate positioning groove 18 together with the sliding seat plate 6, and the supporting assembly is connected to the rotating seat plate 7 after sliding into the seat plate positioning groove 18. The lifting assembly is fixed to the bottom of the frame 1 through the second linear slide rail 30, so the lifting assembly can slide freely at the bottom of the frame 1 under the driving action of the second linear slide rail 30. This arrangement is to allow the lifting assembly to be slidably stored in the frame 1 when not in use, thereby reducing the overall footprint of the device. The lifting assembly consists of three parts in total: one part is the base tray 5, one part is the sliding seat plate 6 that can slide freely in the base tray 5, and the other part is the rotating seat plate 7 that can rotate in the sliding seat plate 6. The above three parts are not only interconnected but can also be freely lifted and lowered under the drive of the hydraulic cylinder 4.

[0049] The bottom of the rotating seat plate 7 and the top of the sliding seat plate 6 are both provided with limiting balls 11. The middle position of the top of the rotating seat plate 7 is an inwardly concave arc structure, and the top edge position of the rotating seat plate 7 is provided with anti-slip grooves. The above structure is set to allow the rotating seat plate 7 to rotate freely on the sliding seat plate 6. First, the rotating seat plate 7 is located in the middle position of the sliding seat plate 6, and its height is slightly higher than the sliding seat plate 6. Secondly, since the sliding seat plate 6 and the rotating seat plate 7 are connected by the limiting balls 11, the rotating seat plate 7 can rotate freely on the sliding seat plate 6, and then the two are combined. The size setting with a height difference allows the user to freely rotate and adjust the body angle when sitting on the surface of the rotating seat plate 7. In addition, the top middle position of the rotating seat plate 7 has an inwardly concave arc structure. This structural setting is designed to allow the patient's buttocks to be automatically limited by the inwardly concave arc structure when the user sits on the rotating seat plate 7, thereby improving the user's comfort and the stability of his body. The anti-slip pattern setting can increase the friction between the patient's buttocks and the rotating seat plate 7, thereby preventing the user's buttocks from slipping.

[0050] like Figures 3 to 8As shown, both side walls of the sliding seat plate 6 are fixedly connected with limit blocks 9, and both side inner walls of the base tray 5 and the both side inner walls of the seat plate positioning groove 18 are symmetrically installed with limit plates 10 that are adapted to the shape of the limit blocks 9. First, when the sliding seat plate 6 is lifted and lowered to a state where it is level with the height of the trip plate 17, the sliding seat plate 6 is better located at the position of the seat plate positioning groove 18. Furthermore, the seat plate positioning groove 18 is adapted to the sliding seat plate 6 in terms of size and structure. Therefore, the user can slide the sliding seat plate 6 into the seat plate positioning groove 18, and then allow the user to transfer from the base tray to the trip plate 17. In order to achieve the sliding effect between the two, limit blocks 9 are installed on both side walls of the sliding seat plate 6, and their corresponding Limiting plates 10 are installed on the inner walls of the base tray 5 and the seat plate positioning groove 18. Since the shapes of the limiting block 9 and the limiting plate 10 are adapted to each other, and when the two are snapped together, an arc structure similar to the shape of a snail is formed. This structure allows the limiting block 9 and the limiting plate 10 to bite into each other, thereby improving the stability and firmness of the cooperation between the two. When the user pushes the sliding seat plate 6 into the seat plate positioning groove 18, the limiting block 9 on the sliding seat plate 6 disengages from the limiting plate 10 on the base tray 5, and then is seamlessly snapped into the limiting plate 10 inside the seat plate positioning groove 18. This setting can not only achieve the transfer effect of the sliding seat plate 6, but also greatly improve the stability of the sliding seat plate 6 during the transfer process.

[0051] like Figures 4 to 9 As shown, the base tray 5 is fixedly connected to the side panel 8 at one end close to the runner plate 17, and a protrusion 20 is fixedly connected to the bottom outer wall of the runner plate 17 close to the base tray 5. A recessed portion 14 is provided on the top of the side panel 8, which is adapted to the shape of the protrusion 20. A weakening groove 15 is provided at the connection position between the side panel 8 and the bottom tray. A positioning plug 13 is fixedly connected to the side of the side panel 8 close to the sliding seat panel 6 and the inner wall of the seat panel positioning groove 18 away from the base tray 5. A positioning slot 12 is provided on the outer wall of the side of the sliding seat panel 6 close to the side panel 8, which is adapted to the shape of the positioning plug 13.

[0052] The side panel 8 is composed of three parts in total, one part is a plate body with an inclined angle directly connected to the base tray 5, one part is a recessed portion 14 at the top of the side panel 8, and the other part is a vertical panel body close to the outer wall of the sliding seat panel 6. A positioning plug 13 that is adapted to the shape of the positioning slot 12 is installed on the vertical panel body. In the default state, the positioning plug 13 on the vertical panel body is inserted into the positioning slot 12. Under the effect of the card-joining limit of the positioning plug 13 and the positioning slot 12, the side panel 8 can limit the sliding seat panel 6. When the sliding seat panel 6 moves to the position of the trip panel 17, the recessed portion 14 on the side panel 8 will be aligned with the trip panel 17. The raised portions 20 on the bottom outer wall cooperate and contact with each other. At this time, the base tray 5 continues to move upward. Under the joint blocking action of the raised portions 20 and the trip plate 17, the side panel 8 will be driven to deform. The deformation position is the weakened groove 15 at the connection position of the side panel 8 and the base tray 5. The side panel 8 will flip from the position of the weakened groove 15 and make the positioning block 13 on the vertical plate body disengage from the positioning slot 12. When the height of the sliding seat plate 6 is equal to that of the trip plate 17, the vertical plate body is located directly below the bottom of the trip plate 17 and is parallel to the bottom of the trip plate 17. At this time, the user can push the sliding seat plate 6 to slide it from the base tray 5 into the seat plate positioning groove 18.

[0053] When the sliding seat plate 6 slides to the end of the seat plate positioning groove 18, the positioning slot 12 on the sliding seat plate 6 will be directly plugged into and matched with the positioning plug 13 on the seat plate positioning groove 18, and with the help of the clamping effect of the positioning plug 13 and the positioning slot 12, as well as the limiting effect of the limit block 9 and the limit plate 10, the sliding seat plate 6 is locked and limited.

[0054] like Figure 1 、 Figure 8 and Figures 10 to 12As shown, the support assembly includes a waist and back support plate 19 fixedly connected to the upper surface of the trip board 17 and having a curved structure. The upper surface of the trip board 17 is fixedly connected with spring pieces 22 arranged linearly. One end of the spring piece 22 is fixedly connected with an arc-shaped support plate 21. The number of the spring pieces 22 and the arc-shaped support plate 21 are both four groups. The outer wall of the arc-shaped support plate 21 conflicts with the inner wall of the waist and back support plate 19. A Y-shaped pressing plate 23 is fixedly connected to the inner wall of the waist and back support plate 19. When the user lies flat on the trip board 17, the user's waist is just located on the waist and back support plate 19. The waist and back support plate 19 are Both ends are fixed on the upper surface of the running board 17, and there is an upwardly protruding structure in the middle. One end of the spring piece 22 is fixed on the upper surface of the running board 17, and the other end is connected to the arc-shaped support plate 21. The structural outline formed by the cooperation of multiple groups of arc-shaped support plates 21 is the same as the outline of the waist and back support plate 19, and the spring piece 22 itself can play an elastic supporting effect on the arc-shaped support plate 21, so the outer wall of the arc-shaped support plate 21 can be in conflict with the inner wall of the waist and back support plate 19. The above structural setting allows the waist and back support plate 19 to be convex in the default state and have a certain supporting capacity.

[0055] The back support plate 19 is provided with a plurality of springs 22 arranged in a plurality of directions, and the plurality of springs 22 are provided with a plurality of springs 22 arranged in a plurality of directions, so that the user can lie flat on the back support plate 19 and the back support plate 19 is provided with a plurality of springs 22 arranged in a plurality of directions.

[0056] like Figure 8 、 Figure 12 and Figure 13As shown, the middle position of the Y-shaped pressure plate 23 is fixedly connected to the first curved plate 24, one end of the Y-shaped pressure plate 23 is fixedly connected to the second curved plate 25, the upper surface of the running plate 17 is fixedly connected to the first guide plate 27 located at the bottom of the second curved plate 25, the upper surface of the running plate 17 is fixedly connected to the second guide plate 28 located at the bottom of the second curved plate 25, the end of the Y-shaped pressure plate 23 away from the second curved plate 25 is fixedly connected to the locking plug 26, and a locking slot 29 that is adapted to the shape of the locking plug 26 is provided on the outer wall of the rotating seat plate 7. The Y-shaped pressure plate 23 and the inner wall of the waist and back support plate 19 are connected through the first curved plate 24 and the second curved plate 25. The first curved plate 24 and the second curved plate 25 cooperate with the structure between the Y-shaped pressure plate 23 to form a Y-shaped profile. The first guide plate 27 and the second guide plate 28 are located at the second curved plate 26 in sequence. At the bottom of the curved plate 25 and the first curved plate 24, one end of the two sets of guide plates are fixed on the running board 17, and the other end is an open and suspended structure. Since the curved directions of the two sets of guide plates and the two sets of curved plates are consistent, when the user lies flat on the upper surface of the waist and back support plate 19, the waist support plate will be pressed down. During the downward pressure of the waist support plate, the first curved plate 24 and the second curved plate 25 will both receive pressure and transmit the pressure to the plate body of the Y-shaped pressure plate 23. At this time, with the help of the curved structure of the two curved plates, combined with the guiding effect of the two sets of guide plates, the locking block 26 at one end of the Y-shaped pressure plate 23 will move toward the locking slot 29. After the locking block 26 moves into the locking slot 29, the two will conflict with each other, and the rotating seat plate 7 will be limited by friction, so that the rotating seat plate 7 cannot continue to rotate.

[0057] Through the above-mentioned setting, when the waist and back support plate 19 is pressed and deformed, the two groups of arc plates cooperate with the arc setting of the two groups of guide plates, and with the help of the extrusion force during the deformation of the waist and back support plate 19, the locking plug 26 at one end of the Y-shaped pressure plate 23 is directly engaged and abutted against the locking slot 29 on the rotating seat plate 7, thereby achieving a limiting effect on the rotating seat plate 7, so that the user's buttocks cannot rotate during the scanning process, which improves the stability of the user's buttocks and can also improve the accuracy of the scanning.

[0058] The workflow of the technical solution provided by the present invention is as follows:

[0059] During use, the operator first places the patient on the lifting assembly, then uses the lifting assembly to lift the patient to a height level with the travel board 17, and then slides the patient onto the travel board 17. After the patient lies down on the travel board 17, the first linear slide 16 operates to transport the travel board 17 together with the patient to the scanning unit 2. The scanning unit 2 is used to scan the patient's lumbar acetabulum. The scanned results are processed by a computer and transmitted to the 3D printing unit 3, and the 3D printing unit 3 prints a solid model of the patient's acetabulum. After the patient is scanned, the first linear slide 16 operates again and moves the patient to the initial position. At this time, the lifting assembly can be used again to quickly transfer the patient from the device.

[0060] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. While specific details are described in detail in the preferred embodiments to provide a thorough understanding of the present invention, those skilled in the art will be able to fully understand the present invention without these details. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0061] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A combined reconstruction device for acetabular bone defects, comprising a frame, characterized in that: A scanning unit is installed at one end of the frame, and the scanning unit is used to scan the patient's acetabulum. A 3D printing unit is installed at the other end of the frame, and the 3D printing unit is used to physically print out the patient's acetabulum model scanned by the scanning unit. The bottom of the frame is fixedly connected to a second linear slide rail, the top of the second linear slide rail is fixedly connected to a hydraulic cylinder, the top of the frame is fixedly connected to a first linear slide rail, and the top of the first linear slide rail is fixedly connected to a runner. A lifting assembly, the lifting assembly is used to lift the patient to a height level with the trip board, the lifting assembly can be divided into two states: before lifting and after lifting. Before lifting, the lifting assembly is connected to the hydraulic cylinder, and after lifting, the lifting assembly is respectively connected to the hydraulic cylinder and the trip board; A support assembly, which is used not only to support the patient's waist but also to lock the lifting assembly. The support assembly is respectively connected to the trip board and the lifted lifting assembly; The lifting assembly includes a base tray fixedly connected to the output end of the hydraulic cylinder, a sliding seat plate is slidably connected to the base tray, a rotating seat plate is rotatably connected to the sliding seat plate, a seat plate positioning groove adapted to the shape of the sliding seat plate is opened on the trip plate, the rotating seat plate can slide into the seat plate positioning groove together with the sliding seat plate, and the supporting assembly is connected to the rotating seat plate after sliding into the seat plate positioning groove; The support assembly includes a waist and back support plate fixedly connected to the upper surface of the running board and having a curved structure, the upper surface of the running board is fixedly connected to elastic pieces distributed in a linear arrangement, one end of the elastic piece is fixedly connected to the arc-shaped support plate, and the inner wall of the waist and back support plate is fixedly connected to a Y-shaped pressure plate; The middle position of the Y-shaped pressure plate is fixedly connected to a first curved plate, one end of the Y-shaped pressure plate is fixedly connected to a second curved plate, and the end of the Y-shaped pressure plate away from the second curved plate is fixedly connected to a locking plug, and a locking slot that is adapted to the shape of the locking plug is provided on the outer wall of the rotating seat plate.

2. The combined reconstruction device for acetabular bone defects according to claim 1, characterized in that: Limiting blocks are fixedly connected to both side walls of the sliding seat plate, and limiting plates that are adapted to the shape of the limiting blocks are symmetrically installed on both side inner walls of the base tray and both side inner walls of the seat plate positioning groove.

3. The combined reconstruction device for acetabular bone defects according to claim 1, characterized in that: The bottom of the rotating seat plate and the top of the sliding seat plate are both provided with limiting balls. The middle position of the top of the rotating seat plate is an inwardly concave arc structure, and the top edge position of the rotating seat plate is provided with anti-slip grooves.

4. The combined reconstruction device for acetabular bone defects according to claim 1, characterized in that: The base tray is fixedly connected to a side panel at one end close to the trip plate, a protrusion is fixedly connected to the bottom outer wall of the trip plate close to the base tray, a recessed portion matching the shape of the protrusion is provided on the top of the side panel, and a weakening groove is provided at the connection position between the side panel and the base tray.

5. The combined reconstruction device for acetabular bone defects according to claim 4, characterized in that: Positioning blocks are fixedly connected to the side of the side panel close to the sliding seat panel and the inner wall of the seat panel positioning groove away from the base tray. A positioning slot that matches the shape of the positioning block is provided on the outer wall of the sliding seat panel close to the side panel.

6. The combined reconstruction device for acetabular bone defects according to claim 1, characterized in that: The number of the spring pieces and the number of the arc-shaped support plates are both four, and the outer wall of the arc-shaped support plate and the inner wall of the waist and back support plate are in conflict with each other.

7. The combined reconstruction device for acetabular bone defects according to claim 1, characterized in that: The upper surface of the trip plate is fixedly connected with a first guide plate and a second guide plate, and the first guide plate and the second guide plate are located at the bottom of the second arc-shaped plate.

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