Disposable customized 3D printed bone model making device and making method

Abstract

The present invention discloses a disposable customized 3D printing bone model manufacturing device and a manufacturing method, which belongs to the field of bone model manufacturing technology. The manufacturing device is used for manufacturing a bone model, and the bone model includes a blank body and a biomaterial layer. The manufacturing device includes a data acquisition and processing device, a blank processing device, a biomaterial 3D printing device, and a post-processing device. The bone model provided by the present invention is made by arranging an internal blank body and an external biomaterial layer. The blank body enables the bone model to have good strength. At the same time, after the bone model is replaced, the biomaterial layer and the human body can be well adapted to each other, thereby avoiding rejection of the bone model and the human body and extending the service life of the bone model; by printing the biomaterial layer on the blank body, the time of 3D printing is greatly shortened. At the same time, the short manufacturing time of the blank body shortens the time of bone model manufacturing, thereby shortening the waiting time for the patient's bone model replacement surgery.

Description

Technical Field

[0001] The present invention belongs to the technical field of bone model production, and in particular relates to a disposable customized 3D printing bone model production device and a production method. Background Art

[0002] The human skeleton is one of the main components of the human body structure and is also an important component for protecting internal organs and supporting body weight. The human skeleton model is a tool to describe the human skeleton structure. By learning the skeleton model, we can better understand the structure and function of the human body and related disease diagnosis and treatment.

[0003] With the development of technology, biomaterial 3D printing equipment is a common method for making bone models. However, existing bone models are usually made of titanium alloy materials or biomaterials. Titanium alloy materials have good strength but will be rejected by some parts of the human body when used, resulting in a poor user experience for patients. Biomaterials can adapt well to the human body but have low strength when used, resulting in a short service life of the bone model. At the same time, when biomaterial 3D printing equipment is used to make bone models, the overall 3D printing method is used to make bone models, resulting in a long bone model production cycle, increasing the cost of bone model production, and prolonging the waiting time for patients' bone model replacement surgery, which is not conducive to the patient's recovery.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a disposable customized 3D printed bone model production device and production method, which can solve the problems of high material consumption and low matching degree between the bone model and the patient affecting the patient experience.

[0006] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0007] A disposable customized 3D printing bone model making device is used for making a bone model, wherein the bone model comprises a blank body and a biomaterial layer, wherein the biomaterial layer is arranged on the outside of the blank body, and the making device comprises:

[0008] The data acquisition and processing equipment includes an information acquisition device and an information processing device, wherein the information acquisition device is used to acquire the bone information required for printing, and the information processing device includes a three-dimensional modeling system and a simulation test system; wherein the three-dimensional modeling system performs three-dimensional production of the bone model based on the influence, so as to obtain a bone model that is highly matched with the patient; the simulation test system is used to perform simulation testing on the bone model obtained by modeling, so as to ensure that the bone model finally produced is highly matched with the patient; the information processing device is also used to control the production of the physical bone model, and the produced model is based on the bone model obtained by modeling.

[0009] The blank processing device is used for taking materials of blank bodies of different sizes and types and pre-processing the surface;

[0010] Biomaterial 3D printing equipment, used to print and produce a biomaterial layer on the surface of the blank body;

[0011] The post-processing equipment includes a waste cleaning component and a waste screening component, which are used for processing waste materials when making bone models.

[0012] In one or more embodiments of the present invention, the information acquisition device includes a strap body, on which a detection device is installed; since it is inconvenient to obtain partial images of joints, in order to facilitate the acquisition of images of joints, a detection device is provided on the strap body, and the joint image is acquired through the cooperation of the strap body and the detection device. A ring buckle is installed at one end of the strap body, and a Velcro is provided at the other end of the strap body, and the detection device is installed on the side close to the ring buckle. Through the cooperation of the ring buckle and the Velcro, the strap body can be fixed to the patient's joint, so that the image of the joint can be collected by the detection device. Since the strap body is easy to fix, it can be fixed to different patients and different joints, so that the detection device can easily acquire images of joints in different parts.

[0013] In one or more embodiments of the present invention, the manufacturing equipment also includes an operating table, a shielding frame is fixedly connected to the operating table, and the shielding frame is sequentially arranged from left to right as a waste screening area, a blank body manufacturing area, and a biomaterial layer manufacturing area, the waste screening assembly is installed in the waste screening area, the blank processing device is installed in the blank body manufacturing area, the biomaterial 3D printing equipment is installed in the biomaterial layer manufacturing area, and the waste cleaning assembly is installed on the operating table. Since waste will be generated after the printing is completed when the bone model is printed by 3D printing, in order to facilitate the recycling of the waste, a waste screening area is provided to screen out the recycled waste; the blank body manufacturing area is used to make the blank body, and the blank body manufacturing area is provided with a blank processing device, and the corresponding raw materials can be cut by the blank processing device to obtain a blank body matching the bone model, and the blank processing device will roughen the surface of the blank body, so that the surface of the blank body is rough; the biomaterial layer manufacturing area is used to print and manufacture the biomaterial layer on the surface of the blank body. After the blank body making area and the biomaterial layer making area have completed the making of the bone model, waste materials will be left. In order to facilitate the recycling of the waste materials, a waste cleaning component is provided to collect the waste materials for recycling.

[0014] In one or more embodiments of the present invention, the waste cleaning assembly includes a first push plate, a second push plate and a third push plate, the first push plate, the second push plate and the third push plate are arranged in sequence from left to right, the first push plate, the second push plate and the third push plate are fixedly connected with connecting blocks between the adjacent side walls, the upper side walls of the first push plate are fixedly connected with driving plates at both ends, a groove body is provided on the driving plate, and the driving plate is slidably connected to the front and rear side walls of the shielding frame through the groove body. Since the sizes of waste left after the blank body production area and the biomaterial layer production area complete the production of the bone model are different, in order to clean up the waste remaining on the surface of the operating table, the first push plate, the second push plate and the third push plate are used to process the waste on the operating table respectively, so that the waste will not affect the subsequent printing of the bone model, while improving the efficiency of bone model printing. In order to enable the first push plate, the second push plate and the third push plate to clean the waste on the operating table respectively, and they will not affect each other during cleaning, a connecting block is provided between the adjacent side walls of the first push plate, the second push plate and the third push plate, so as to keep a certain distance between each other. A pair of support plates are fixedly connected to the front and rear sides of the upper surface of the first push plate, and a pair of support plates are installed with bearings, and threaded rods are installed in the bearings, and the threaded rods are threadedly connected to the drive plate, and a drive motor is installed at one end of the bearing. Since the first push plate, the second push plate and the third push plate clean the waste by moving, in order to realize the movement of the first push plate, the second push plate and the third push plate, a pair of drive plates are fixedly connected to the first push plate, and the movement of the first push plate is driven by the movement of the pair of drive plates. In order to move the drive plate, the threaded rod is driven to rotate by the drive motor, so that the drive plate can be driven to move. A pair of driving plates are provided, which are driven to move by a pair of driving motors, so that the first push plate, the second push plate and the third push plate are stable when moving, so as to have a good cleaning effect on the waste on the operating table. After the first push plate, the second push plate and the third push plate clean the waste, they need to return to their original positions to clean the waste after the subsequent bone model printing. The driving motor drives the back and forth movement through forward and reverse rotation, and a limit switch is provided for controlling the start and stop of the driving motor.

[0015] In one or more embodiments of the present invention, there is a certain distance between the lower end of the first push plate and the upper surface of the operating table, a rubber layer is provided at the lower end of the second push plate, and the lower end of the rubber layer is in contact with the upper surface of the operating table, and a brush layer is provided at the lower end of the third push plate, and the lower end of the brush layer is interference fit with the upper surface of the operating table. When cleaning the waste on the operating table, the first push plate is used to push larger waste, so the lower end of the first push plate is set to have a certain distance from the upper surface of the operating table, so that the first push plate pushes larger impurities when pushing the waste. The second push plate is used to push small waste, and by setting the lower end of the rubber layer provided at the lower end of the second push plate to be in contact with the upper surface of the operating table, the second push plate can push the small waste on the operating table, and the elasticity of the rubber layer makes the pushing of small waste more thorough. The third push plate is used to clean the operating table again to ensure that the surface of the operating table is cleaned so that waste materials will not affect the subsequent production of bone models; a brushing layer is provided at the lower end of the third push plate, and the brushing layer and the operating table have an interference fit to clean the waste materials on the operating table. At the same time, the brushing layer should be made of a material that is convenient for cleaning waste materials.

[0016] In one or more embodiments of the present invention, the operating table is provided with a through hole in the waste screening area, the waste screening assembly is installed on the through hole, the waste screening assembly includes a first screening plate and a second screening plate, the first screening plate and the second screening plate are both installed on the right side of the through hole, the first screening plate is installed above the second screening plate, the through hole on the left side of the first screening plate is set as a feed port, a waste collection box is installed at the lower end of the operating table, the waste collection box is installed below the through hole, and a third screening plate is installed between the bottom inner wall of the waste collection box and the left side wall of the first screening plate. The first screening plate and the second screening plate are used to screen the waste so that the waste can be classified according to the size of the particle size. The waste pushed by the waste cleaning component is transported to the first screening plate, and the waste is filtered by the first screening plate. The waste filtered by the first screening plate is filtered again by the second screening plate to filter out the small-sized waste. The large-sized waste is pushed to the feed port by the waste cleaning component. The waste entering the feed port will fall on the third screening plate and flow, so that the waste is filtered again by the third screening plate, so that the waste is screened thoroughly. Since the third screening plate is installed in the waste collection box, the waste collection box can be divided into two chambers, wherein the chamber under the feed port is used to store the larger-sized waste, and the chamber under the first screening plate is used to store the smaller-sized waste.

[0017] In one or more embodiments of the present invention, the first sieve plate and the second sieve plate are both provided with filter holes, the aperture of the filter holes on the first sieve plate is larger than the aperture of the filter holes on the second sieve plate, the filter holes on the first sieve plate overlap with the filter holes on the second sieve plate, the second sieve plate is fixedly mounted on the through hole, the first sieve plate is mounted on the through hole in a manner that can slide left and right, and the third sieve plate is arranged in an inclined manner. Small particles in the waste are filtered by double filtration of the first sieve plate and the second sieve plate, so the filter holes on the first sieve plate and the second sieve plate are arranged to overlap, so that the waste filtered by the first sieve plate will be filtered again by the second sieve plate, and at the same time, when the filter holes are blocked by waste during filtration, in order to facilitate the cleaning of the waste in the filter holes, the first sieve plate is arranged to be slidable, and the waste in the filter holes is driven to move by sliding left and right of the first sieve plate, so as to achieve the dredging of the filter holes. The third screen plate is tilted so that the waste pushed into the feed port by the waste cleaning assembly will fall on the third screen plate and flow, so that the third screen plate can filter the waste again.

[0018] In one or more embodiments of the present invention, the information acquisition device is signal-connected to both the three-dimensional modeling system and the simulation test system, and the information processing device is signal-connected to the blank processing device, the biomaterial 3D printing device, and the waste cleaning component. The information acquisition device collects the image of the joint and transmits it to the three-dimensional modeling system, so that the three-dimensional modeling system can model the bone model based on the image. At the same time, the information acquisition device transmits the image to the simulation test system, and the simulation test system models the human joint based on the image to obtain the overall image of the bone model replacement joint, so as to facilitate the simulation test. The blank processing device, the biomaterial 3D printing device, and the waste cleaning component are controlled by the information processing device to facilitate the operation of the equipment when the bone model is made.

[0019] A method for making a disposable customized 3D printed bone model making device comprises the following steps:

[0020] Step 1: Bind the information acquisition device to the part of the patient that needs joint replacement, collect the joint image information through the information acquisition device, transmit the collected images to the three-dimensional modeling system, and obtain the bone model required by the patient through the three-dimensional modeling system; the strap body can be fixed to the patient's joint through the combination of Velcro and ring buckle, so that the image of the joint can be collected through the detection device, so as to accurately obtain the image of the patient's joint. The detection device transmits the image to the three-dimensional modeling system, and the three-dimensional modeling system obtains the bone model that the patient needs to replace through modeling. Since the bone model is composed of an internal blank body and an external biomaterial layer, a bone model composed of an internal blank body and an external biomaterial layer is set when the bone model is established, so as to match the strength of the bone model during the simulation test.

[0021] Step 2: The simulation test system models the overall morphology of the patient's joints based on the information collected by the information collection device, replaces the modeled bone model to the patient's joints, and performs a simulation test on the joints of the replaced bone model; before making the bone model, it is first necessary to perform a simulation test on the modeled bone model to ensure that the made bone model matches the patient and that the patient can use it stably for a long time.

[0022] Step three, after the simulation test is passed, according to the bone model of the simulation test, the blank processing device is controlled by the information processing equipment in the blank body production area to cut the raw material to obtain a blank body proportionally reduced from the bone model; the information processing equipment controls the blank processing device to cut the raw material according to the shape of the bone model, so as to obtain a blank body proportionally reduced from the bone model, and at the same time, the surface of the blank body is roughened to make the surface rough.

[0023] Step 4: The blank body is transported to the biomaterial layer production area, and the information processing device controls the biomaterial 3D printing device to perform 3D printing on the blank body. The biomaterial 3D printing device is used to print the biomaterial on the outer surface of the blank body, so that the blank body and the biomaterial layer form a bone model. At the same time, the biomaterial can be clad on the outer surface of the blank body by cladding during 3D printing.

[0024] In one or more embodiments of the present invention, the simulation test in step 2 includes the following steps:

[0025] S1. Modeling of replacement joints: During simulation testing, images of the patient's replaced joints should be obtained first, and the patient's joints should be simulated and established. At the same time, the original bones should be replaced according to the bone model in step one, so that the bone model obtained by modeling is installed in the patient's joints.

[0026] S2. Establish patient data; obtain relevant data of the patient, mainly including the patient's age, weight, occupation and joint activity, understand the load borne by the patient's joint activity, as well as parameters such as the joint activity angle.

[0027] S3. Conduct simulation tests in stages. In order to make the results of the simulation tests accurate, the simulation tests are divided into three stages: low-load test, normal-load test and overload test. The conditions of the replaced bone model when used in the human body are obtained through the three-stage test, so as to test whether the bone model matches the human body and can be used safely for a long time.

[0028] Compared with the prior art, the present invention has the following advantages:

[0029] 1. The bone model is made of a blank body and an outer biomaterial layer. The blank body gives the bone model good strength. At the same time, after the bone model is replaced, the biomaterial layer and the human body can adapt to each other well, thereby avoiding rejection of the bone model and the human body and extending the life of the bone model.

[0030] 2. By printing the biomaterial layer on the blank body, the 3D printing time is greatly shortened. At the same time, the production time of the blank body is short, so the bone model production time is greatly shortened, thereby shortening the patient's waiting time for bone model replacement surgery, facilitating patient recovery, and reducing the production cost of the bone model;

[0031] 3. The waste is recycled through the waste cleaning and screening components so that the waste can be reasonably recycled, which reduces the production cost of the bone model and is beneficial to the environment.

[0032] 4. The reduction in the cost of bone model production not only alleviates the financial pressure on patients, but also has great promotion value and significant significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a front view of a disposable customized 3D printing bone model making device in one embodiment of the present invention;

[0035] Figure 2 A three-dimensional diagram of a disposable customized 3D printed bone model making device according to an embodiment of the present invention Figure 1 ;

[0036] Figure 3 A three-dimensional diagram of a disposable customized 3D printed bone model making device according to an embodiment of the present invention Figure 2 ;

[0037] Figure 4 A cross-sectional view of a disposable customized 3D printed bone model making device according to an embodiment of the present invention;

[0038] Figure 5 A cross-sectional view of a disposable customized 3D printed bone model making device according to an embodiment of the present invention;

[0039] Figure 6 In one embodiment of the present invention Figure 5 The enlarged view of point A in the middle;

[0040] Figure 7 A three-dimensional information collection device according to an embodiment of the present invention Figure 1 ;

[0041] Figure 8 A three-dimensional information collection device according to an embodiment of the present invention Figure 2 .

[0042] Description of main reference numerals:

[0043] 1-information collection device, 11-belt body, 12-detection device, 13-ring buckle, 14-Velcro, 2-production equipment, 21-operating table, 22-shielding frame, 23-blank processing device, 24-biomaterial 3D printing equipment, 25-waste cleaning assembly, 2501-first push plate, 2502-second push plate, 2503-third push plate, 2504-connecting block, 2505-drive plate, 2506-support plate, 2507-bearing, 2508-threaded rod, 2509-drive motor, 26-waste screening assembly, 2601-first screening plate, 2602-second screening plate, 2603-third screening plate, 2604-feed port, 2605-waste collection box. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0045] Example 1

[0046] like Figure 1 to Figure 8 As shown, a disposable customized 3D printing bone model production device in one embodiment of the present invention is used to produce a bone model. The bone model includes a blank body and a biomaterial layer, wherein the biomaterial layer is arranged on the outside of the blank body. The production device 2 includes a data acquisition and processing device, a blank processing device 23, a biomaterial 3D printing device 24 and a post-processing device.

[0047] Among them, the data acquisition and processing equipment includes an information acquisition device 1 and an information processing device. The information acquisition device 1 is used to collect the bone information required for printing, and the information processing device includes a three-dimensional modeling system and a simulation test system; wherein the three-dimensional modeling system performs three-dimensional production of the bone model based on the influence, so as to obtain a bone model that is highly matched with the patient; the simulation test system is used to perform simulation testing on the bone model obtained by modeling, to ensure that the final bone model is highly matched with the patient; the information processing device is also used to control the production of the physical bone model, and the produced model is based on the bone model obtained by modeling.

[0048] like Figure 7 and Figure 8 As shown, the information acquisition device 1 includes a belt body 11, and a detection device 12 is installed on the belt body 11; since it is inconvenient to obtain partial images of the joint part, in order to facilitate the acquisition of images of the joint part, a detection device 12 is arranged on the belt body 11, and the joint image is acquired through the cooperation of the belt body 11 and the detection device 12.

[0049] Furthermore, if Figure 7 and Figure 8 As shown, a ring buckle 13 is installed at one end of the band body 11, a Velcro 14 is provided at the other end of the band body 11, and the detection device 12 is installed on the side close to the ring buckle 13. Through the cooperation of the ring buckle 13 and the Velcro 14, the band body 11 is conveniently fixed to the joint of the patient, so that the image of the joint is collected by the detection device 12. Since the band body 11 is easy to fix, it can be fixed for different patients and different joint parts, so that the detection device 12 is convenient to obtain images of joints at different parts.

[0050] like Figure 2~Figure 5 As shown, the production equipment 2 also includes an operating table 21, to which a shielding frame 22 is fixedly connected. The shielding frame 22 is arranged from left to right as a waste screening area, a blank body production area and a biomaterial layer production area. The waste screening component 26 is installed in the waste screening area, the blank processing device 23 is installed in the blank body production area, the biomaterial 3D printing device 24 is installed in the biomaterial layer production area, and the waste cleaning component 25 is installed on the operating table.

[0051] Specifically, since waste will be generated after the printing is completed when the bone model is printed by 3D printing, in order to facilitate the recycling of the waste, a waste screening area is provided to screen out the recycled waste; the blank body production area is used to make the blank body, and the blank body production area is provided with a blank processing device 23, through which the corresponding raw materials can be cut to obtain a blank body matching the bone model, and the blank processing device 23 will roughen the surface of the blank body, so that the surface of the blank body is rough; the biomaterial layer production area prints the biomaterial layer on the surface of the blank body through the biomaterial 3D printing device 24. After the blank body production area and the biomaterial layer production area complete the production of the bone model, waste will be left. In order to facilitate the recycling of the waste, the waste is collected and recycled by setting a waste cleaning component 25.

[0052] Preferably, since the bone model is made by 3D printing equipment throughout the whole process, the cycle of bone model making is long, thereby extending the waiting time for the patient's operation, and also increasing the cost of bone model making. The bone model made by the blank body and the biomaterial layer makes the bone model made by the making of the blank body and the printing of the biomaterial layer, thus greatly shortening the time of 3D printing, and then shortening the time of bone model making, effectively shortening the waiting time for the patient's operation, facilitating the patient's rehabilitation, and having outstanding social value. Shortening the time of making will reduce the cost of bone model making. At the same time, the blank processing device 25 can take materials and pre-treat the surface of the blank body of different sizes, so as to realize the making of different bone models.

[0053] Optionally, for bone models that are prone to fractures and need to be replaced, the blank body can be prefabricated in advance based on bone model images of different age groups, and the blank body can be made in a proportional manner according to the corresponding bone model. When the patient needs to replace the bone model, the biomaterial layer can be 3D printed on the corresponding blank body according to the bone model obtained by the patient through 3D modeling, thereby further shortening the time for bone model production.

[0054] Preferably, the material of the blank body is titanium alloy or ceramic material, and the material of the biomaterial layer includes hydroxyapatite, calcium phosphate, calcium sulfate and bioglass. The blank body is arranged inside the bone model, which determines the strength of the bone model, so that the strength of the bone model meets the use requirements. The biomaterial layer is arranged on the blank body. Since the biomaterial can be better integrated with the human body to avoid rejection, it is convenient for the patient to recover after the bone model is replaced, and at the same time, the bone model experience in the patient's body is better and will not cause discomfort to the patient.

[0055] At the same time, the bone model is composed of an inner blank body and an outer biomaterial layer. The internal blank body ensures that the bone model has sufficient strength, and the external biomaterial layer contacts the human joints and tissues. The biomaterial layer reduces the possibility of rejection by the human body, so that the bone model can be well matched with the human body after replacement, which improves the patient experience and ensures that the bone model can be used for a long time, extending its service life.

[0056] like Figure 1 to Figure 6 As shown, the waste cleaning assembly 25 includes a first push plate 2501, a second push plate 2502 and a third push plate 2503, which are arranged in sequence from left to right, and connecting blocks 2504 are fixedly connected between adjacent side walls of the first push plate 2501, the second push plate 2502 and the third push plate 2503, and driving plates 2505 are fixedly connected at both ends of the upper side wall of the first push plate 2501, and a groove body is opened on the driving plate 2505, and the driving plate 2505 is slidably connected to the front and rear side walls of the shielding frame 22 through the groove body.

[0057] Specifically, since the sizes of waste materials left after the blank body production area and the biomaterial layer production area are completed for the production of the bone model are different, in order to clean up the waste materials remaining on the surface of the operating table 21, the first pusher plate 2501, the second pusher plate 2502 and the third pusher plate 2503 are used to process the waste materials on the operating table 21 respectively, so that the waste materials will not affect the subsequent printing of the bone model, and the efficiency of the printing of the bone model is improved. In order to make the first pusher plate 2501, the second pusher plate 2502 and the third pusher plate 2503 clean up the waste materials on the operating table 21 respectively, and they will not affect each other during the cleaning, a connecting block 2504 is provided between the adjacent side walls of the first pusher plate 2501, the second pusher plate 2502 and the third pusher plate 2503 so that a certain distance is maintained between them.

[0058] Furthermore, if Figure 2 and Figure 3 As shown, a pair of support plates 2506 are fixedly connected to the front and rear sides of the upper surface of the first push plate 2501, and bearings 2507 are installed on the pair of support plates 2506. Threaded rods 2508 are installed in the bearings 2507. The threaded rods 2508 are threadedly connected to the drive plate 2505, and a drive motor 2509 is installed at one end of the bearing 2507.

[0059] Specifically, since the first push plate 2501, the second push plate 2502 and the third push plate 2503 clean up the waste by moving, in order to realize the movement of the first push plate 2501, the second push plate 2502 and the third push plate 2503, a pair of driving plates 2505 are fixedly connected to the first push plate 2501, and the movement of the pair of driving plates 2505 drives the movement of the first push plate 2501. In order to move the driving plate 2505, the threaded rod 2508 is driven to rotate by the driving motor 2509, so that the driving plate 2505 can be driven to move.

[0060] Preferably, a pair of driving plates 2505 are provided, and driven to move by a pair of driving motors 2509, so that the first push plate 2501, the second push plate 2502 and the third push plate 2503 are stable when moving, so as to have a good cleaning effect on the waste on the operating table 21. After the first push plate 2501, the second push plate 2502 and the third push plate 2503 clean the waste, they need to return to their original positions, so as to clean the waste after the subsequent bone model printing. The driving motor 2509 drives the moving back and forth by the forward and reverse rotation, and a limit switch is provided for controlling the start and stop of the driving motor 2509.

[0061] like Figure 5 Combination Figure 6 As shown, there is a certain distance between the lower end of the first push plate 2501 and the upper surface of the operating table 21, a rubber layer is provided at the lower end of the second push plate 2502, and the lower end of the rubber layer is in contact with the upper surface of the operating table 21, and a brush layer is provided at the lower end of the third push plate 2503, and the lower end of the brush layer is interference fit with the upper surface of the operating table 21. When cleaning the waste on the operating table 21, the first push plate 2501 is used to push the larger waste, so the lower end of the first push plate 2501 is set to have a certain distance from the upper surface of the operating table 21, so that the first push plate 2501 pushes the larger impurities when pushing the waste. The second push plate 2502 is used to push small waste materials. By setting the lower end of the rubber layer provided at the lower end of the second push plate 2502 to fit the upper surface of the operating table 21, the second push plate 2502 can push the small waste materials on the operating table 21, and the elasticity of the rubber layer makes the pushing of small waste materials more thorough. The third push plate 2503 is used to clean the operating table 21 again to ensure that the surface of the operating table 21 is cleaned so that the waste materials will not affect the subsequent production of the bone model; a brushing layer is provided at the lower end of the third push plate 2503, and the brushing layer and the operating table 21 are interference fit, so that the waste materials on the operating table 21 are cleaned, and the brushing layer should be made of a material that is easy to clean the waste materials.

[0062] like Figure 4 and Figure 5As shown, the operating table 21 is provided with a through hole in the waste screening area, and the waste screening assembly 26 is installed on the through hole. The waste screening assembly 26 includes a first screening plate 2601 and a second screening plate 2602. The first screening plate 2601 and the second screening plate 2602 are both installed on the right side of the through hole, the first screening plate 2601 is installed above the second screening plate 2602, and the through hole on the left side of the first screening plate 2601 is set as a feed port 2604. A waste collection box 2605 is installed at the lower end of the operating table 21, and the waste collection box 2605 is installed below the through hole. A third screening plate 2603 is installed between the bottom inner wall of the waste collection box 2605 and the left side wall of the first screening plate 2601.

[0063] Specifically, the first screening plate 2601 and the second screening plate 2602 are used to screen the waste so that the waste can be classified according to the size of the particle size. The waste pushed by the waste cleaning component 25 is transported to the first screening plate 2601, and the waste is filtered by the first screening plate 2601. The waste filtered by the first screening plate 2601 is filtered again by the second screening plate 2602 to screen out the waste with small particle size. The waste with large particle size is pushed to the feed port 2604 by the waste cleaning component 25. The waste entering the feed port 2604 will fall on the third screening plate 2603 and flow, so that the waste can be filtered again by the third screening plate 2603, so that the waste can be screened thoroughly. Since the third screening plate 2603 is installed in the waste collection box 2605, the waste collection box 2605 can be divided into two chambers, wherein the chamber under the feed port 2604 is used to store larger waste particles, and the chamber under the first screening plate 2601 is used to store smaller waste particles.

[0064] like Figure 4 and Figure 5 As shown, filter holes are provided on the first sieve plate 2601 and the second sieve plate 2602, the aperture of the filter holes on the first sieve plate 2601 is larger than the aperture of the filter holes on the second sieve plate 2602, the filter holes on the first sieve plate 2601 overlap with the filter holes on the second sieve plate 2602, the second sieve plate 2602 is fixedly mounted on the through hole, the first sieve plate 2601 is mounted on the through hole in a manner that allows it to slide left and right, and the third sieve plate 2603 is arranged in an inclined manner.

[0065] Specifically, the small particles in the waste are filtered by double filtering of the first sieve plate 2601 and the second sieve plate 2602, so the filter holes on the first sieve plate 2601 and the second sieve plate 2602 are set to overlap, so that the waste filtered by the first sieve plate 2601 will be filtered again by the second sieve plate 2602. At the same time, when filtering, there is waste clogged in the filter hole. In order to facilitate the cleaning of the waste in the filter hole, the first sieve plate 2601 is set to be slidable, and the waste in the filter hole is driven to move by sliding the first sieve plate 2601 left and right, so as to achieve the dredging of the filter hole. The third sieve plate 2603 is set to be tilted, so that the waste pushed to the feed port 2604 by the waste cleaning assembly 25 will fall on the third sieve plate 2603 and flow, so that the third sieve plate 2603 can filter the waste again.

[0066] Preferably, the first sieve plate 2601 and the second sieve plate 2602 are both configured to be detachable, so that sieve plates with different filter hole sizes can be replaced according to usage.

[0067] Furthermore, by recycling the waste generated during the production of the bone model through the waste cleaning component 25 and the waste screening component 26, the waste of materials during the production of the bone model can be reduced, thereby reducing the cost of bone model production and achieving environmental protection, making the bone model cost lower, reducing the economic pressure on patients, and having good promotion value.

[0068] The information acquisition device 1 is connected to the three-dimensional modeling system and the simulation test system by signals, and the information processing device is connected to the blank processing device 23, the biomaterial 3D printing device 24 and the waste cleaning component 25 by signals. The information acquisition device 1 collects the image of the joint and transmits it to the three-dimensional modeling system, so that the three-dimensional modeling system can model the bone model based on the image. At the same time, the information acquisition device 1 transmits the image to the simulation test system, and the simulation test system models the human joint based on the image to obtain the overall image of the bone model replacement joint, so as to facilitate the simulation test. The blank processing device 23, the biomaterial 3D printing device 24 and the waste cleaning component 25 are controlled by the information processing device to facilitate the operation of the equipment when the bone model is made.

[0069] A method for making a disposable customized 3D printing bone model making device comprises the following steps:

[0070] Step 1, bind the information acquisition device 1 to the part of the patient that needs joint replacement, collect the joint image information through the information acquisition device 1, transmit the collected image to the three-dimensional modeling system, and model the bone model required by the patient through the three-dimensional modeling system; through the cooperation of the Velcro 14 and the ring buckle 13, the strap body 11 can be fixed to the patient's joint, so that the image of the joint can be collected by the detection device 12, so that the image of the patient's joint can be accurately obtained. The detection device 12 transmits the image to the three-dimensional modeling system, and the three-dimensional modeling system obtains the bone model that the patient needs to replace through modeling. Since the bone model is composed of an internal blank body and an external biomaterial layer, a bone model composed of an internal blank body and an external biomaterial layer is set when the bone model is established, so as to match the strength of the bone model during the simulation test.

[0071] Step 2: The simulation test system simulates the overall morphology of the patient's joints based on the information transmitted by the information acquisition device 1, and replaces the modeled bone model to the patient's joints, and performs a simulation test on the joints of the replaced bone model; before making the bone model, it is first necessary to perform a simulation test on the modeled bone model to ensure that the manufactured bone model matches the patient and that the patient can use it stably for a long time.

[0072] Step three, after the simulation test is passed, according to the bone model of the simulation test, the information processing equipment is used to control the blank processing device 23 in the blank body production area to cut the raw materials to obtain a blank body that is proportionally reduced in size with the bone model; the information processing equipment controls the blank processing device 23 to cut the strength material according to the shape of the bone model, so as to obtain a blank that is proportionally reduced in size than the bone model, and at the same time, the surface of the blank is roughened to make the surface rough.

[0073] Step 4: The blank body is transported to the biomaterial layer production area, and the information processing device controls the biomaterial 3D printing device 24 to perform 3D printing on the blank body. The biomaterial is produced on the outer surface of the blank body by the biomaterial 3D printing device 24, so that the bone model is formed by the blank body and the biomaterial layer. At the same time, the biomaterial can be clad on the outer surface of the blank body by cladding during 3D printing. Since the outer surface of the blank is rough, the adhesion between the printed biomaterial and the blank is high, ensuring that the blank and the biomaterial will not separate when the bone model is used.

[0074] The simulation test in step 2 includes the following steps:

[0075] S1. Modeling of replacement joints: During simulation testing, images of the patient's replaced joints should be obtained first, and the patient's joints should be simulated and established. At the same time, the original bones should be replaced according to the bone model in step one, so that the bone model obtained by modeling is installed in the patient's joints.

[0076] S2. Establish patient data; obtain relevant data of the patient, mainly including the patient's age, weight, occupation and joint activity, understand the load borne by the patient's joint activity, as well as parameters such as the joint activity angle.

[0077] S3. Conduct simulation tests in stages; in order to make the results of the simulation tests accurate, the simulation tests are divided into three stages: low-load test, normal load test and overload test. The three-stage test is used to obtain the condition of the replaced bone model when used in the human body, so as to test whether the bone model matches the human body and can be used safely for a long time. During the test, the joints in S1 are moved according to the data in S2 to test the pathological changes between the bone model and the joints after the activity to ensure that there is no rejection and no impact on the surrounding tissues. Secondly, the influence of the external environment should also be considered during the test, such as temperature and humidity, which are factors that affect the joints.

[0078] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0079] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A disposable customized 3D printing bone model making device for making bone models, characterized in that: The bone model comprises a blank body and a biomaterial layer, and the manufacturing equipment comprises: The data acquisition and processing device comprises an information acquisition device and an information processing device, wherein the information acquisition device is used to acquire the bone information required to be printed, and the information processing device comprises a three-dimensional modeling system and a simulation test system; the information acquisition device comprises a strap body, a detection device is installed on the strap body, a ring buckle is installed at one end of the strap body, a Velcro is provided at the other end of the strap body, and the detection device is installed on a side close to the ring buckle; The blank processing device is used for taking materials of blank bodies of different sizes and types and pre-processing the surface; Biomaterial 3D printing equipment, used to print and produce a biomaterial layer on the surface of the blank body; Post-processing equipment; The production equipment also includes an operating table, a shielding frame is fixedly connected to the operating table, and the shielding frame is sequentially arranged from left to right as a waste screening area, a blank body production area, and a biomaterial layer production area, the waste screening component is installed in the waste screening area, the blank processing device is installed in the blank body production area, the biomaterial 3D printing device is installed in the biomaterial layer production area, and the waste cleaning component is installed on the operating table; The cam is an assembly made of a plurality of movable parts, each of which is connected with a plurality of movable parts in a plurality of opposite ends of the movable parts. The movable parts are connected with a plurality of movable parts in a plurality of opposite ends of the movable parts. The upper surface of the operating table has an interference fit; the operating table is provided with a through hole in the waste screening area, and the waste screening assembly is installed on the through hole, and the waste screening assembly includes a first screening plate and a second screening plate, the first screening plate and the second screening plate are both installed on the right side of the through hole, the first screening plate is installed above the second screening plate, and the through hole on the left side of the first screening plate is set as a feed inlet, a waste collection box is installed at the lower end of the operating table, and the waste collection box is installed below the through hole, and a third screening plate is installed between the bottom inner wall of the waste collection box and the left side wall of the first screening plate; the first screening plate and the second screening plate are both provided with filtering holes, the aperture of the filtering holes on the first screening plate is larger than the aperture of the filtering holes on the second screening plate, the filtering holes on the first screening plate overlap with the filtering holes on the second screening plate, the second screening plate is fixedly installed on the through hole, the first screening plate is installed on the through hole in a manner that can slide left and right, and the third screening plate is arranged in an inclined manner.

2. The disposable customized 3D printing bone model making device according to claim 1, characterized in that: The information acquisition device is signal-connected to both the three-dimensional modeling system and the simulation test system, and the information processing device is signal-connected to the blank processing device, the biomaterial 3D printing device and the waste cleaning component.

3. A method for making a disposable customized 3D printing bone model making device, characterized in that: The steps include: Step 1: Bind the information acquisition device to the part of the patient that needs joint replacement, collect joint image information through the information acquisition device, transmit the collected images to the three-dimensional modeling system, and model the bone model required by the patient through the three-dimensional modeling system; Step 2: The simulation test system models the overall morphology of the patient's joint based on the information collected by the information collection device, replaces the modeled bone model with the patient's joint, and performs a simulation test on the joint of the replaced bone model; Step 3: After the simulation test is qualified, according to the bone model of the simulation test, the blank processing device is controlled by the information processing device in the blank body production area to cut the raw material to obtain a blank body that is proportionally reduced to the bone model; Step 4: transport the blank body to the biomaterial layer production area, and the information processing device controls the biomaterial 3D printing device to perform 3D printing on the blank body.

4. The method for making a disposable customized 3D printing bone model making device according to claim 3, characterized in that: The simulation test in step 2 includes the following steps: S1, modeling of replacement joints; S2. Establishment of patient data; S3. Carry out simulation tests in stages.

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