Clinical orthopedic 3D printing equipment

Abstract

The utility model relates to the technical field of clinical orthopedics, in particular to clinical orthopedics 3D printing equipment which comprises a machine body, a material taking assembly is arranged at the lower end of the interior of the machine body, the material taking assembly comprises five supporting rods movably connected to the lower end of the interior of the machine body, and the number of the supporting rods is two. Swing rods are movably connected to the ends, close to each other, of the supporting rods on the periphery of the lower end in the machine body, springs are movably connected to the lower ends of the supporting rods on the periphery of the lower end in the machine body, supporting blocks are movably connected to the lower ends of the multiple swing rods, and the multiple supporting blocks are fixedly connected to the lower end in the machine body; according to the printing device, after a product is printed, the contact face of the product and the base plate can be gradually reduced by turning over the base plate, so that the purpose of easily taking the product is achieved, the situation that the product is damaged due to the fact that the product is forcefully disassembled is avoided, and the quality of the printed product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clinical orthopedics, in particular to a clinical orthopedics 3D printing device. Background Art

[0002] Clinical orthopedic 3D printing equipment is a type of advanced medical equipment used in orthopedic surgery and treatment. It uses 3D printing technology to create personalized orthopedic implants, surgical models, guides and other medical supplies. With its rapid prototyping and personalized manufacturing characteristics, it has shown great potential in the field of orthopedic medical device manufacturing.

[0003] Common 3D printing equipment uses additive manufacturing technology to construct objects by stacking materials layer by layer according to a three-dimensional digital model. The heated and molten material is extruded through a nozzle and then stacked layer by layer to form the object. The materials used in clinical orthopedic 3D printing are usually biodegradable active materials. These materials need to undergo high temperatures or other chemical processes to form the final product. This process may release some volatile organic compounds and ultrafine particles.

[0004] In the existing technical solution, the material is heated and melted, then extruded through a nozzle and gradually solidified. After solidification, the product is removed and the support and polishing work are performed. However, after printing and solidification, some materials will have strong adhesion to the printing plate, making it difficult to remove the model from the printing plate. Excessive force will cause damage to the model or printing platform, thereby affecting product quality.

[0005] Therefore, a clinical orthopedic 3D printing device is proposed. Summary of the Invention

[0006] The purpose of the present utility model is to provide a clinical orthopedic 3D printing device, which can gradually reduce the contact area between the product and the pad by flipping the pad after the product is printed, so as to achieve the purpose of easy removal of the product, thereby avoiding damage to the product caused by forceful removal, thereby improving the quality of the printed product, and solving the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a clinical orthopedic 3D printing device, comprising a body, wherein a material-picking assembly is provided at the lower end of the interior of the body, wherein the material-picking assembly comprises a support rod movably connected to the lower end of the interior of the body, and the number of the support rods is five, and the support rods around the lower end of the interior of the body are movably connected to a rocker arm at one end close to each other, and the lower ends of the support rods around the lower end of the interior of the body are movably connected to a spring, and the lower ends of the plurality of rocker arms are movably connected to a support block, and the plurality of support blocks are fixedly connected to the lower end of the interior of the body, and the ends of the plurality of rocker arms close to each other are movably connected to a push block.

[0008] Preferably, the upper ends of the plurality of support rods are fixedly connected to a heating bed, and the number of the heating beds is four, and the adjacent ends of the plurality of heating beds are all movably connected to a turning shaft.

[0009] Preferably, the front end of the body is movably connected to the cabinet door, and the rear end of the body is movably connected to the roller, the upper and lower ends of the interior of the body are fixedly connected to the first sliding rod, and the number of the first sliding rods is three, and the outside of the three first sliding rods is movably connected to the first sliding block, the front side of the lower end of the interior of the body is fixedly connected to the second stepping motor, the right end of the second stepping motor is fixedly connected to the second screw rod, the spiral transmission of the second screw rod is equipped with a second sliding block, the upper end of the second sliding block is fixedly connected to the second sliding rod, and the outside of the second sliding block is movably connected to the third sliding block, and the upper end of the first sliding block at the rear end is fixedly connected to the first stepper motor, the upper end of the output shaft of the first stepper motor is fixedly connected to the first screw rod, and the outside spiral transmission of the first screw rod is equipped with a fourth sliding block, the third sliding rod is fixedly connected between the fourth slider and the third slider, and the number of the third sliding bars is two.

[0010] Preferably, the two third sliding rods are movably connected to the outside of the printing body, the upper end of the printing body is fixedly connected to a conduit, the inside of the printing body is fixedly connected to a heat dissipation pipe and a heating module, and the heating module is located on the left side of the heat dissipation pipe, a fan is provided at the left end of the printing body, and the lower end of the printing body is fixedly connected to a nozzle.

[0011] Preferably, an adsorption component is provided at the inner left end of the body, and the adsorption component includes a cavity opened at the inner left end of the body, the upper end of the cavity is movably connected to a cover plate, the inner left end of the cavity is fixedly connected to a concave plate, and there are nine concave plates, a mesh plate is fixedly connected between the cavity and the interior of the body, and the interiors of multiple concave plates are movably connected to stirring rods.

[0012] Preferably, the elastic force of the spring is greater than the sum of the gravity acting on the support rod and the heating bed, and the flip range of the multiple flip axes is 0 to 30 degrees.

[0013] Preferably, the first screw rod is engaged with the interior of the fourth slider, and the second screw rod is engaged with the interior of the second slider.

[0014] Preferably, the interiors of the plurality of concave plates are filled with spherical activated carbon, the plurality of stirring rods are passed through the mesh plate to the interior of the machine body, and the right ends of the plurality of stirring rods are fixedly connected to fan blades.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This clinical orthopedic 3D printing device, equipped with components such as support rods, springs, rocker arms, round pins, and push blocks, can gradually reduce the contact surface between the product and the backing plate by flipping it over after printing, making it easier to remove the product. This avoids damage to the product caused by forceful removal, thereby improving the quality of the printed product.

[0017] 2. This clinical orthopedic 3D printing device, by installing components such as heat pipes, fans, covers, stirring rods, and fan blades, can stir the adsorbent during the product printing process to generate harmful gases, thereby increasing the adsorption area of ​​the adsorbent and accelerating the adsorption of harmful substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is the overall structural view of the utility model;

[0020] Figure 2 This is a partial half-section structural schematic diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of the half-section structure of the overall lower end of the utility model;

[0022] Figure 4 This is a front view of the material taking component of the present utility model;

[0023] Figure 5 This is a schematic diagram of the framework structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the half-section structure of the printing body of the present invention.

[0025] Description of reference numerals:

[0026] 1. Machine body; 11. Cabinet door; 12. First slide bar; 121. First slider; 122. Third slider; 13. Second slide bar; 131. Third slide bar; 14. Reel; 15. First stepper motor; 151. First screw rod; 152. Fourth slider; 16. Second stepper motor; 161. Second screw rod; 162. Second slider; 2. Heating bed; 21. Turning axis; 3. Material picking assembly; 31. Support rod; 311. Spring; 32. Rocker arm; 321. Support block; 322. Push block; 4. Print body; 41. Conduit; 42. Heat pipe; 43. Nozzle; 44. Heating module; 45. Fan; 5. Adsorption assembly; 51. Cavity; 511. Cover plate; 52. Concave plate; 53. Stirring rod; 531. Fan blade; 54. Screen. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0028] See also Figures 1 to 4 , the utility model provides a technical solution:

[0029] A clinical orthopedic 3D printing device includes a body 1, a material taking assembly 3 is provided at the lower end of the body 1, the material taking assembly 3 includes a support rod 31 movably connected to the lower end of the body 1, and the number of the support rods 31 is five, the support rods 31 around the lower end of the body 1 are all movably connected to the end of the swing rod 32, the lower ends of the support rods 31 around the lower end of the body 1 are all movably connected to the spring 311, the lower ends of the plurality of swing rods 32 are all movably connected to the support block 321, and the plurality of support blocks 321 are all fixedly connected to the body 1 At the lower end of the part, the ends of the multiple rocker arms 32 that are close to each other are movably connected to a push block 322, the elastic force of the spring 311 is greater than the sum of the gravity exerted on the support rod 31 and the heating bed 2, the flip range of the multiple flip shafts 21 is 0 to 30 degrees, the first screw rod 151 is engaged with the inside of the fourth slider 152, and the second screw rod 161 is engaged with the inside of the second slider 162, the upper ends of the multiple support rods 31 are fixedly connected to the heating bed 2, and the number of the heating beds 2 is four, and the ends of the multiple heating beds 2 that are close to each other are movably connected to the flip shaft 21.

[0030] By adopting the above technical solution, after the clinical orthopedic 3D printing work is completed, when the product needs to be removed, the operator first presses down slowly along the front end of the heating bed 2 on the inside of the movable body 1, and the heating bed 2 is turned downward by the turning axis 21 between the adjacent ones, thereby reducing the contact surface components between the heating bed 2 and the product. Then, the heating bed 2 is turned downward and the lower end support rod 31 moves toward the lower end of the body 1. At this time, the elastic force of the spring 311 is less than the pressure between the support rod 31 and the upper end of the heating bed 2, so that the spring 311 is continuously tightened. The support rod 31 descends, bringing the left end of the rocker arm 32 downward. At this time, the rocker arm 32 is movably connected to the support block 321 at the lower end of the body 1, so that the support block 321 serves as a support point to achieve the effect of a lever, thereby causing the right end of the rocker arm 32 to move upward. The upward movement of the rocker arm 32 brings the support rod 31 at the middle end upward, causing the support rod 31 to apply force to the product at the upper end of the heating bed 2, so that the opposite sides of the lower end of the product are evenly stressed, thereby making it easy for the product to be separated from the heating bed 2, thereby avoiding damage to the product caused by forceful removal, thereby improving the quality of the printed product.

[0031] Specifically, such as Figure 4As shown, the front end of the body 1 is movably connected to the cabinet door 11, and the rear end of the body 1 is movably connected to the roller 14, the upper and lower ends of the interior of the body 1 are fixedly connected to the first sliding rod 12, and the number of the first sliding rod 12 is three, and the outside of the three first sliding rods 12 is movably connected to the first slider 121, the front side of the lower end of the interior of the body 1 is fixedly connected to the second stepping motor 16, the right end of the second stepping motor 16 is fixedly connected to the second screw rod 161, the second screw rod 161 is spirally driven with a second slider 162, the upper end of the second slider 162 is fixedly connected to the second sliding rod 13, the outside of the second slider 13 is movably connected to the third slider 122, and the upper end of the first slider 121 at the rear end is fixedly connected to the first stepper motor 15, the upper end of the output shaft of the first stepper motor 15 is fixedly connected to the first screw rod 151, the outside of the first screw rod 151 is spirally driven with a fourth slider 152, the third slider 131 is fixedly connected between the fourth slider 152 and the third slider 122, and the third slider There are two rods 131. The two third slide rods 131 are externally movably connected to the printing body 4. The upper end of the printing body 4 is fixedly connected to the guide tube 41. The interior of the printing body 4 is fixedly connected to the heat pipe 42 and the heating module 44. The heating module 44 is located on the left side of the heat pipe 42. The left end of the printing body 4 is provided with a fan 45. The lower end of the printing body 4 is fixedly connected to the nozzle 43. The left end of the interior of the body 1 is provided with an adsorption component 5. The adsorption component 5 includes a nozzle 43 located on the left end of the interior of the body 1. The cavity 51 has a cover plate 511 movably connected to its upper end, a recessed plate 52 is fixedly connected to the left inner end of the cavity 51, and there are nine recessed plates 52. A mesh plate 54 is fixedly connected between the cavity 51 and the interior of the body 1, and stirring rods 53 are movably connected to the interiors of the plurality of recessed plates 52. The interiors of the plurality of recessed plates 52 are filled with spherical activated carbon, and the plurality of stirring rods 53 pass through the mesh plate 54 to the interior of the body 1. The right ends of the plurality of stirring rods 53 are fixedly connected to fan blades 531.

[0032] By adopting the above technical solution, before printing, it is first necessary to open the cover 511, and then fill the cavity 51 with spherical activated carbon, and then install the coil on the outside of the reel 14. In the process of printing the product, the material is rolled into the printing body 4 through the feed drive device (it should be noted that the feed drive device is a prior art and will not be described here). The material then enters the printing body 4 through the conduit 41, and is melted by the heating module 44, and then discharged through the nozzle 43 for printing. The heat dissipation pipe 42 can conduct away excess heat, and finally the heat is dissipated by the fan 45. It should be noted here that the materials for clinical orthopedic 3D printing require biocompatibility, mechanical properties, reliability and wear resistance. When such materials melt during the printing process, they will release ultrafine particles and volatile organic compounds. These substances are considered to be potentially harmful to human health. In the printing process, the first stepper motor 15 is started by the control system, and the output shaft of the first stepper motor 15 It rotates forward and reverse, and then drives the first screw rod 151 at the upper end of the output shaft to rotate. Through the cooperation between the first screw rod 151 and the third slider 122, it drives the printing body 4 and other components up and down. When left and right movement is required, by starting the second stepper motor 16, the output shaft of the second stepper motor 16 rotates forward and reverse, driving the second screw rod 161 at the front end to rotate, and drives the second slider 162 to move left and right through the spiral transmission. The second slider 162 moves and drives all components to move left and right together, and in the process of moving, it drives the fan 45 at the left end of the printing body 4 together. In the process of moving, the wind generated by the rotation of the fan 45 continuously blows toward the left end inside the machine body 1. The fan blade 531 at the right end of the screen plate 54 rotates after being subjected to the wind force. The rotation of the fan blade 531 drives the left end stirring rod 53 to rotate. The rotation of the stirring rod 53 continuously stirs the spherical activated carbon inside the concave plate 52, thereby increasing the contact area between the activated carbon and the harmful gas, thereby accelerating the speed of adsorbing harmful substances to ensure the health of the operators.

[0033] Working principle: First, the operator slowly presses down with his hand along the front end of the front heating bed 2, and the heating bed 2 flips downward through the adjacent flip shaft 21, thereby reducing the contact surface components between the heating bed 2 and the product, and then the heating bed 2 flips downward and drives the lower end support rod 31 to move toward the lower end of the body 1. At this time, the elastic force of the spring 311 is less than the pressure between the support rod 31 and the upper end of the heating bed 2, so that the spring 311 is continuously tightened, and when the support rod 31 descends, it drives the left end of the rocker arm 32 downward. At this time, the rocker arm 32 is movably connected to the support block 321 at the lower end of the body 1, so that the support block 321 acts as a support point to achieve the effect of a lever, thereby making the right end of the rocker arm 32 move upward, and the upward movement of the rocker arm 32 drives the middle end support rod 31 upward, so that the support rod 31 applies force to the product at the upper end of the heating bed 2, so that the opposite sides of the lower end of the product are evenly stressed, thereby making the product easily separated from the heating bed 2, thereby avoiding damage to the product caused by forceful removal, thereby improving the quality of the printed product.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A clinical orthopedic 3D printing device, comprising a body (1), characterized in that: A material taking assembly (3) is provided at the lower end of the interior of the body (1), and the material taking assembly (3) includes a support rod (31) movably connected to the lower end of the interior of the body (1), and the number of the support rods (31) is five, and the support rods (31) around the lower end of the interior of the body (1) are all movably connected to the ends of the support rods (31) close to each other are all movably connected to the rocker rods (32), and the lower ends of the support rods (31) around the lower end of the interior of the body (1) are all movably connected to the springs (311), and the lower ends of the plurality of rocker rods (32) are all movably connected to the support blocks (321), and the plurality of support blocks (321) are all fixedly connected to the lower end of the interior of the body (1), and the ends of the plurality of rocker rods (32) close to each other are all movably connected to the push blocks (322).

2. A clinical orthopedic 3D printing device according to claim 1, characterized in that: The upper ends of the plurality of support rods (31) are fixedly connected to a heating bed (2), and the number of the heating beds (2) is four. The ends of the plurality of heating beds (2) that are close to each other are all movably connected to a turning shaft (21).

3. A clinical orthopedic 3D printing device according to claim 1, characterized in that: The front end of the machine body (1) is movably connected to a cabinet door (11), the rear end of the machine body (1) is movably connected to a roller (14), the upper and lower ends of the interior of the machine body (1) are fixedly connected to first slide bars (12), and the number of the first slide bars (12) is three, and the outsides of the three first slide bars (12) are movably connected to first sliders (121), the front side of the lower end of the interior of the machine body (1) is fixedly connected to a second stepping motor (16), the right end of the second stepping motor (16) is fixedly connected to a second screw rod (161), and the spiral transmission of the second screw rod (161) is provided with a second slider (162). The upper end of the second slider (162) is fixedly connected to the second slider (13), the outer part of the second slider (13) is movably connected to the third slider (122), the upper end of the first slider (121) at the rear end is fixedly connected to the first stepper motor (15), the upper end of the output shaft of the first stepper motor (15) is fixedly connected to the first screw rod (151), the outer spiral transmission of the first screw rod (151) is provided with a fourth slider (152), the third slider (131) is fixedly connected between the fourth slider (152) and the third slider (122), and the number of the third sliders (131) is two.

4. A clinical orthopedic 3D printing device according to claim 3, characterized in that: The two third sliding rods (131) are externally movably connected to a printing body (4), the upper end of the printing body (4) is fixedly connected to a guide tube (41), the interior of the printing body (4) is fixedly connected to a heat dissipation pipe (42) and a heating module (44), and the heating module (44) is located on the left side of the heat dissipation pipe (42), a fan (45) is provided at the left end of the printing body (4), and the lower end of the printing body (4) is fixedly connected to a nozzle (43).

5. A clinical orthopedic 3D printing device according to claim 4, characterized in that: An adsorption assembly (5) is provided at the left end of the interior of the body (1), and the adsorption assembly (5) comprises a cavity (51) opened at the left end of the interior of the body (1); the upper end of the cavity (51) is movably connected to a cover plate (511); the left end of the interior of the cavity (51) is fixedly connected to a concave plate (52), and there are nine concave plates (52); a mesh plate (54) is fixedly connected between the cavity (51) and the interior of the body (1); and a plurality of concave plates (52) are movably connected to the interiors of the plurality of concave plates (52).

6. A clinical orthopedic 3D printing device according to claim 2, characterized in that: The elastic force of the spring (311) is greater than the sum of the gravity exerted on the support rod (31) and the heating bed (2), and the flipping range of the plurality of flip axes (21) is 0 to 30 degrees.

7. A clinical orthopedic 3D printing device according to claim 3, characterized in that: The first screw rod (151) is engaged with the interior of the fourth slider (152), and the second screw rod (161) is engaged with the interior of the second slider (162).

8. The clinical orthopedic 3D printing device according to claim 5, characterized in that: The interiors of the plurality of concave plates (52) are filled with spherical activated carbon, the plurality of stirring rods (53) are passed through the mesh plate (54) to the interior of the machine body (1), and the right ends of the plurality of stirring rods (53) are fixedly connected with fan blades (531).

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