3D printing personalized assembly type supporting prosthesis

Abstract

The utility model discloses a 3D printing personalized assembly type supporting prosthesis, and relates to the technical field of medical prostheses. The 3D printing personalized assembly type supporting prosthesis comprises a first supporting body and a second supporting body, and the first supporting body is formed through 3D printing and provided with a first assembly face; the second support body is formed by 3D printing and is provided with a second assembly surface; the first assembling surface and the second assembling surface are matched in shape and contour, the first supporting body and the second supporting body are connected together in an abutting mode through the first assembling surface and the second assembling surface, and the outer contour of the first supporting body and the second supporting body which are assembled together is matched with the contour of a bone defect area. The 3D printing personalized assembly type supporting prosthesis can be accurately matched with the outline of a bone defect, and is more convenient and faster to install.

Description

Technical Field

[0001] The present application relates to the technical field of medical prostheses, and in particular to a 3D printed personalized modular support prosthesis. Background Art

[0002] For bone defects caused by bone destruction, support prostheses are often used to fill and support the above-mentioned bone defect areas. For example, for benign bone tumors occurring around joints, intralesional curettage combined with adjuvant therapy is usually used for treatment. However, during the curettage process, there is an inevitable possibility of damaging the subchondral bone and cartilage of the joint, causing joint damage, and the subchondral bone and cartilage of the joint are important factors that determine joint function. In particular, for some invasive benign tumors, such as giant cell tumors of bone, a grinding drill is required after curettage to further polish the tumor wall, which increases the damage to the subchondral bone and cartilage.

[0003] In the related art, the support prosthesis cannot be well matched with the bone defect area, which may cause secondary damage to the subchondral bone and cartilage, and in severe cases may cause joint surface degeneration, fracture or collapse, which may affect the patient's joint function. In addition, in the related art, there is also the problem of inconvenient installation of the support prosthesis. Utility Model Content

[0004] In view of this, an embodiment of the present application provides a 3D printed personalized modular support prosthesis.

[0005] The embodiment of the present application provides a 3D printed personalized modular support prosthesis for filling a bone defect area, and the 3D printed personalized modular support prosthesis includes a first support body and a second support body. The first support body is formed by 3D printing and is provided with a first assembly surface; the second support body is formed by 3D printing and is provided with a second assembly surface. The shape contours of the first assembly surface and the second assembly surface match, the first support body and the second support body are abutted together through the first assembly surface and the second assembly surface, and the outer contour of the first support body and the second support body after being assembled together matches the contour of the bone defect area.

[0006] In a possible implementation of the present application, the first support body includes a first bottom wall and a first side wall, the first bottom wall is a planar structure, the first side wall is a curved structure, the edge of the first side wall is connected to the edge of the first bottom wall, and the surface of the first bottom wall on the side away from the first side wall forms a first assembly surface; the second support body includes a second bottom wall and a second side wall, the second bottom wall is a planar structure, the second side wall is a curved structure, the edge of the second side wall is connected to the edge of the second bottom wall, and the surface of the second bottom wall on the side away from the second side wall forms a second assembly surface.

[0007] In a possible implementation of the present application, the first bottom wall includes a first support ring, a second support ring and a plurality of strip structures, the second support ring is arranged on the periphery of the first support ring, and the plurality of strip structures of the first bottom wall are connected between the first support ring and the second support ring; the second bottom wall includes a third support ring, a fourth support ring and a plurality of strip structures, the fourth support ring is arranged on the periphery of the third support ring, and the plurality of strip structures of the second bottom wall are connected between the third support ring and the fourth support ring.

[0008] In a possible implementation of the present application, the third support ring extends beyond the second assembly surface on a side facing the first support ring, and a portion of the third support ring that extends beyond the second assembly surface extends into the first support ring.

[0009] In a possible implementation of the present application, the first support ring and the third support ring are both circular rings.

[0010] In a possible implementation of the present application, the first side wall is formed by a plurality of strip structures, the plurality of strip structures of the first side wall are staggeredly connected to the second support ring, the plurality of strip structures of the first side wall are staggeredly connected to form a first grid gap, and the shape of the first grid gap is a triangle.

[0011] In a possible implementation of the present application, the second side wall is formed by a plurality of strip structures, the plurality of strip structures of the second side wall are staggeredly connected to the fourth support ring, the plurality of strip structures of the second side wall are staggeredly connected to form a second grid gap, and the shape of the second grid gap is a triangle.

[0012] In a possible implementation of the present application, a first reinforcing rib is provided on the first side wall, the first reinforcing rib is a strip structure, the first reinforcing rib is located in the curved surface where the first side wall is located, and the first reinforcing rib is connected to the strip structure of the first side wall on the extension path of the first reinforcing rib; a second reinforcing rib is provided on the second side wall, the second reinforcing rib is a strip structure, the second reinforcing rib is located in the curved surface where the second side wall is located, and the second reinforcing rib is connected to the strip structure of the second side wall on the extension path of the second reinforcing rib.

[0013] In a possible implementation of the present application, the extension direction of the plane where the first reinforcing rib is located is perpendicular to the extension direction of the plane where the first assembly surface is located; the extension direction of the plane where the second reinforcing rib is located is perpendicular to the extension direction of the plane where the second assembly surface is located.

[0014] In a possible implementation of the present application, the plane where the first reinforcing rib is located coincides with the plane where the second reinforcing rib is located.

[0015] In the 3D printed personalized modular support prosthesis provided in the embodiment of the present application, the first support body and the second support body can be made by utilizing the advantage of 3D printing that it is easy to print complex structures, and a relatively accurate match can be made according to the contour of the bone defect, thereby ensuring that the 3D printed personalized modular support prosthesis provided in the embodiment of the present application forms a good support and a good bone contact surface. In addition, by setting the 3D printed personalized modular support prosthesis provided in the embodiment of the present application in the form of an assembly of the first support body and the second support body, the installation process can be made more convenient, and the area of ​​the bone cortex window when scraping and grafting the bone can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present application and are used together with the specification to illustrate the technical solution of the present application.

[0018] Figure 1 A schematic diagram of the overall structure of a 3D printed personalized modular support prosthesis provided in an embodiment of the present application;

[0019] Figure 2 An exploded schematic diagram of a 3D printed personalized modular support prosthesis provided in an embodiment of the present application;

[0020] Figure 3 A schematic diagram of a 3D printed personalized modular support prosthesis provided in an embodiment of the present application for filling a bone defect area;

[0021] Figure 4 A schematic diagram of the overall structure of a 3D printed personalized modular support prosthesis provided in an embodiment of the present application;

[0022] Figure 5 An exploded schematic diagram of a 3D printed personalized modular support prosthesis provided in an embodiment of the present application;

[0023] Figure 6 A schematic diagram of a 3D printed personalized modular support prosthesis provided in an embodiment of the present application for filling a bone defect area;

[0024] Figure 7 An exploded schematic diagram of a 3D printed personalized modular support prosthesis provided in an embodiment of the present application;

[0025] Figure 8A schematic diagram of an exploded view of a 3D printed personalized modular support prosthesis provided in an embodiment of the present application.

[0026] Figure ID:

[0027] 1. First support body; 11. First bottom wall; 111. First assembly surface; 112. First support ring; 113. Second support ring; 12. First side wall; 121. First grid gap; 122. First reinforcing rib; 2. Second support body; 21. Second bottom wall; 211. Second assembly surface; 212. Third support ring; 213. Fourth support ring; 22. Second side wall; 221. Second grid gap; 222. Second reinforcing rib; 01. Strip structure. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the application embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of this application; it is obvious that the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0029] The present application embodiment provides a 3D printed personalized modular support prosthesis, referring to Figure 1 , Figure 2 , Figure 4 and Figure 5 The 3D printed personalized modular support prosthesis provided in the embodiment of the present application includes a first support body 1 and a second support body 2, wherein the first support body 1 is formed by 3D printing, and the first support body 1 is provided with a first assembly surface 111; the second support body 2 is formed by 3D printing, and the second support body 2 is provided with a second assembly surface 211. The shape contours of the first assembly surface 111 and the second assembly surface 211 match, the first support body 1 and the second support body 2 are abutted together through the first assembly surface 111 and the second assembly surface 211, and the outer contour of the first support body 1 and the second support body 2 after being assembled together matches the contour of the bone injury area.

[0030] It is understandable that in the embodiment of the present application, the first support 1 and the second support 2 can be printed by 3D printing materials through a 3D printing process. In the embodiment of the present application, the material of the first support 1 and the second support 2 is not limited, nor is the type of 3D printing process limited. For example, the first support 1 and the second support 2 can be manufactured by a 3D process such as photocuring, laser sintering or melt deposition.

[0031] For example, in the embodiment of the present application, the material of the first support 1 and the second support 2 can be set to titanium or titanium alloy, or other metals or alloys; in addition, the material of the first support 1 and the second support 2 can also be set to a polymer material or a composite material.

[0032] In addition, in the embodiment of the present application, the first support body 1 and the second support body 2 are independent structures, and the first support body 1 and the second support body 2 are assembled to form a 3D printed personalized modular support prosthesis. Correspondingly, a first assembly surface 111 is set on the first support body 1, and a second assembly surface 211 is set on the second support body 2. It can be understood that the first assembly surface 111 can be the surface of a partial structure of the first support body 1, and the second assembly surface 211 can be the surface of a partial structure of the second support body 2.

[0033] It should be noted that in the embodiment of the present application, the specific structural form of the first assembly surface 111 and the second assembly surface 211 is not limited. The first assembly surface 111 and the second assembly surface 211 can be a plane or a curved surface, as long as the shape contours of the first assembly surface 111 and the second assembly surface 211 match.

[0034] Illustratively, in an embodiment of the present application, the first assembly surface 111 is a plane, the second assembly surface 211 is also a plane, and the size and shape of the first assembly surface 111 are the same as the size and shape of the second assembly surface 211, so that the first assembly surface 111 and the second assembly surface 211 can be adaptively assembled together.

[0035] In addition, in the embodiment of the present application, the shape contours of the first support body 1 and the second support body 2 can be set according to the shape contour of the bone defect area, so that the outer contour of the first support body 1 and the second support body 2 after being assembled together can match the contour of the bone defect area.

[0036] For example, refer to Figure 3 In some embodiments of the present application, the contour of the bone defect area is an egg-like structure that is wide at the top and narrow at the bottom. Correspondingly, in the embodiments of the present application, the outer contour of the first support body 1 and the second support body 2 after being assembled together also forms a structure similar to an egg that is wide at the top and narrow at the bottom corresponding to the bone defect area.

[0037] In addition, refer to Figure 6 In some other embodiments of the present application, the contour of the bone defect area is an elliptical structure that is approximately the same from top to bottom. Correspondingly, in the embodiments of the present application, the outer contour after the first support body 1 and the second support body 2 are assembled together also forms an elliptical structure that is approximately the same from top to bottom corresponding to the bone defect area.

[0038] It should be noted that, in the embodiment of the present application, the assembly direction of the first support body 1 and the second support body 2 is not limited. Figure 1 , Figure 2 , Figure 4 and Figure 5 In the embodiment of the present application, the first support body 1 and the second support body 2 can be assembled along the up-down direction. In other embodiments of the present application, the first support body 1 and the second support body 2 can also be assembled along the left-right direction or other directions.

[0039] Through the above-mentioned settings, in the 3D printed personalized modular support prosthesis provided in the embodiment of the present application, the first support body 1 and the second support body 2 can be made by utilizing the advantage of 3D printing that it is easy to print complex structures, and a relatively accurate match can be made according to the contour of the bone defect, thereby ensuring that the 3D printed personalized modular support prosthesis provided in the embodiment of the present application forms a good support and a good bone contact surface. In addition, by setting the 3D printed personalized modular support prosthesis provided in the embodiment of the present application to the form of assembling the first support body 1 and the second support body 2, it can be made more convenient during the installation process, and at the same time, the area of ​​the bone cortex window when scraping and grafting can be reduced.

[0040] On this basis, in some embodiments of the present application, the first support body 1 includes a first bottom wall 11 and a first side wall 12, the first bottom wall 11 is a planar structure, the first side wall 12 is a curved structure, the edge of the first side wall 12 is connected to the edge of the first bottom wall 11, and the surface of the first bottom wall 11 away from the first side wall 12 forms a first assembly surface 111.

[0041] It should be noted that the common bone defect area can generally be considered as an irregular sphere. For this, the 3D printed personalized modular support prosthesis can be divided into two approximately hemispherical parts in the up and down directions, wherein one part is the first support body 1 and the other part is the second support body 2. On this basis, the first bottom wall 11 can be set to a planar structure approximately in a circle, and the first side wall 12 can be set to a curved surface structure approximately in a bowl shape.

[0042] Reference Figure 1 and Figure 4 In the embodiment of the present application, the first bottom wall 11 and the first side wall 12 may form a structure similar to a hemispherical shape. Here, the edge of the first side wall 12 is connected to the edge of the first bottom wall 11, which means that any position of the edge of the first side wall 12 is connected to the edge of the first bottom wall 11, and it can also be considered that the edge of the first bottom wall 11 also forms the edge of the first side wall 12.

[0043] On this basis, a surface of the first bottom wall 11 away from the first side wall 12 forms a first assembly surface 111 .

[0044] Furthermore, in the embodiment of the present application, the second support body 2 includes a second bottom wall 21 and a second side wall 22, the second bottom wall 21 is a planar structure, the second side wall 22 is a curved structure, the edge of the second side wall 22 is connected to the edge of the second bottom wall 21, and the surface of the second bottom wall 21 away from the second side wall 22 forms a second assembly surface 211.

[0045] It is understood that in the embodiment of the present application, the second bottom wall 21 and the second side wall 22 can be arranged with reference to the arrangement of the first bottom wall 11 and the first side wall 12 described above. Figure 2 and Figure 5 In some embodiments of the present application, the second bottom wall 21 can be set to a planar structure that is approximately circular, and the second side wall 22 can be set to a curved structure that is approximately bowl-shaped.

[0046] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 In the embodiment of the present application, the second bottom wall 21 and the second side wall 22 may form a structure similar to a hemispherical shape. Here, the edge of the second side wall 22 is connected to the edge of the second bottom wall 21, which means that any position of the edge of the second side wall 22 is connected to the edge of the second bottom wall 21, and it can also be considered that the edge of the second bottom wall 21 also forms the edge of the second side wall 22.

[0047] On this basis, a surface of the second bottom wall 21 away from the second side wall 22 forms a second assembly surface 211 .

[0048] In this way, the first support body 1 and the second support body 2 can be assembled together through the first assembly surface 111 and the second assembly surface 211 to form a spherical structure.

[0049] Further, see Figure 2 and Figure 5 In the embodiment of the present application, the first bottom wall 11 includes a first support ring 112, a second support ring 113 and a plurality of strip structures 01, the second support ring 113 is arranged at the periphery of the first support ring 112, and a plurality of strip structures 01 of the first bottom wall 11 are connected between the first support ring 112 and the second support ring 113. The second bottom wall 21 includes a third support ring 212, a fourth support ring 213 and a plurality of strip structures 01, the fourth support ring 213 is arranged at the periphery of the third support ring 212, and a plurality of strip structures 01 of the second bottom wall 21 are connected between the third support ring 212 and the fourth support ring 213.

[0050] It should be noted that in the embodiment of the present application, the shape of the first support ring 112, the second support ring 113, the third support ring 212 or the fourth support ring 213 is not limited. For example, the first support ring 112 and the third support ring 212 can be set to a rectangular, circular or other shape; the third support ring 212 and the fourth support ring 213 can be set to an irregular circle that matches the bone defect area.

[0051] Reference Figure 2 and Figure 5 In the embodiment of the present application, the first support ring 112 and the second support ring 113 are also arranged in the same plane, and the size of the second support ring 113 can be set larger than the size of the first support ring 112, so that the second support ring 113 can be arranged on the periphery of the first support ring 112.

[0052] Reference Figure 2 , Figure 5 , Figure 7 and Figure 8 , a plurality of connecting strip structures 01 may be provided between the first support ring 112 and the second support ring 113 to connect the first support ring 112 and the second support ring 113 together. Figure 2 , Figure 5 and Figure 8 In the embodiment of the present application, the plurality of strip structures 01 between the first support ring 112 and the second support ring 113 can be staggered and connected together; in addition, referring to Figure 7 In the embodiment of the present application, the multiple strip structures 01 between the first support ring 112 and the second support ring 113 can also be arranged to be connected in a divergent manner between the first support ring 112 and the second support ring 113, so that the multiple strip structures 01 do not intersect.

[0053] Similarly, refer to Figure 2 , Figure 5 and Figure 8 In the embodiment of the present application, the plurality of strip structures 01 between the third support ring 212 and the fourth support ring 213 may be staggered and connected together; in addition, referring to Figure 7 In the embodiment of the present application, the multiple strip structures 01 between the third support ring 212 and the fourth support ring 213 can also be arranged to be connected in a divergent manner between the third support ring 212 and the fourth support ring 213, so that the above-mentioned multiple strip structures 01 do not intersect.

[0054] Reference Figure 2 and Figure 5 , it can be considered that the strip structure 01 of the first bottom wall 11 forms a grid structure.

[0055] It should be noted that, in the embodiment of the present application, the extending direction of the strip structure 01 of the first bottom wall 11 is not limited. Figure 2 and Figure 5 In the embodiment of the present application, the strip structures 01 of the first bottom wall 11 can be arranged to be crisscrossed and connected; in addition, the strip structures 01 of the first bottom wall 11 can also be arranged to be crisscrossed and connected at other angles.

[0056] Reference Figure 2 and Figure 5 In the embodiment of the present application, the third support ring 212 and the fourth support ring 213 are also arranged in the same plane, and the size of the fourth support ring 213 can be set larger than the size of the third support ring 212, and then the fourth support ring 213 can be set on the periphery of the third support ring 212.

[0057] Reference Figure 2 and Figure 5 , a plurality of staggered strip structures 01 may be provided between the third support ring 212 and the fourth support ring 213 to connect the third support ring 212 and the fourth support ring 213 together. Figure 2 and Figure 5 , it can be considered that the strip structure 01 of the second bottom wall 21 forms a grid structure.

[0058] It should be noted that, in the embodiment of the present application, the extension direction of the strip structure 01 of the second bottom wall 21 is not limited. Figure 2 and Figure 5 In the embodiment of the present application, the strip structures 01 of the second bottom wall 21 can be arranged to be crisscrossed and connected; in addition, the strip structures 01 of the second bottom wall 21 can also be arranged to be crisscrossed and connected at other angles.

[0059] On this basis, refer to Figure 2 and Figure 5 In some embodiments of the present application, the third support ring 212 extends beyond the second assembly surface 211 toward one side of the first support ring 112 , and a portion of the third support ring 212 that extends beyond the second assembly surface 211 extends into the first support ring 112 .

[0060] For example, refer to Figure 2 and Figure 5 In the embodiment of the present application, the dimension of the third support ring 212 in the direction perpendicular to the second assembly surface 211 can be set larger, so that the third support ring 212 can extend beyond the second assembly surface 211 toward the side of the first support ring 112 .

[0061] Further, by adaptively setting the size of the third support ring 212 and the size of the first support ring 112, the portion of the third support ring 212 that exceeds the second assembly surface 211 can be extended into the first support ring 112. At the same time, by adaptively setting the size of the portion of the third support ring 212 that exceeds the second assembly surface 211 and the inner diameter of the first support ring 112, the portion of the third support ring 212 that exceeds the second assembly surface 211 can be slidably connected to the first support ring 112, so that the first support body 1 and the second support body 2 can be relatively fixed along the radial direction of the third support ring 212, which can play a role in limiting the first support body 1 and the second support body 2.

[0062] In addition, refer to Figure 2 and Figure 5 In some embodiments of the present application, the first support ring 112 and the third support ring 212 are both circular rings.

[0063] It can be understood that by configuring the first support ring 112 and the third support ring 212 to be circular rings, the first support ring 112 and the third support ring 212 can be easily manufactured.

[0064] In addition, refer to Figure 2 and Figure 5 In some embodiments of the present application, the first side wall 12 is formed by a plurality of strip structures 01, and the plurality of strip structures 01 of the first side wall 12 are staggeredly connected to the second support ring 113, and the plurality of strip structures 01 of the first side wall 12 are staggeredly connected to form a first grid gap 121, and the shape of the first grid gap 121 is a triangle.

[0065] Reference Figure 1 It can be considered that the first side wall 12 is a grid structure similar to a bird's nest formed by multiple strip structures 01, and the above-mentioned grid structure forms gaps. For the convenience of description, the gaps formed by the strip structures 01 of the above-mentioned first side wall 12 can be called first grid gaps 121.

[0066] It can be understood that, in the embodiment of the present application, by controlling the extension direction of the strip structure 01 of the first side wall 12 , the shape of the first grid gap 121 can be made triangular.

[0067] In this way, through the above-mentioned arrangement, in the 3D printed personalized modular support prosthesis provided in the embodiment of the present application, the stability of the triangle can be utilized to increase the force strength of the first side wall 12, thereby enabling the 3D printed personalized modular support prosthesis provided in the embodiment of the present application to provide better support.

[0068] On this basis, refer to Figure 1In the embodiment of the present application, the second side wall 22 is formed by a plurality of strip structures 01, and the plurality of strip structures 01 of the second side wall 22 are staggeredly connected to the fourth support ring 213, and the plurality of strip structures 01 of the second side wall 22 are staggeredly connected to form a second grid gap 221, and the shape of the second grid gap 221 is a triangle.

[0069] Reference Figure 1 It can be considered that the multiple strip structures 01 of the second side wall 22 form a grid structure similar to a bird's nest, and the above-mentioned grid structure forms gaps. For the convenience of description, the gaps formed by the strip structures 01 of the second side wall 22 can be called second grid gaps 221.

[0070] It can be understood that, in the embodiment of the present application, by controlling the extension direction of the strip structure 01 of the second side wall 22 , the shape of the second grid gap 221 can be made triangular.

[0071] In this way, through the above-mentioned arrangement, in the 3D printed personalized modular support prosthesis provided in the embodiment of the application, the stability of the triangle can be utilized to increase the force strength of the second side wall 22, thereby further enabling the 3D printed personalized modular support prosthesis provided in the embodiment of the application to provide better support.

[0072] On this basis, refer to Figure 1 In some embodiments of the present application, a first reinforcing rib 122 is provided on the first side wall 12, the first reinforcing rib 122 is a strip structure 01, the first reinforcing rib 122 is located in the curved surface where the first side wall 12 is located, and the first reinforcing rib 122 is connected to the strip structure 01 of the first side wall 12 on the extension path of the first reinforcing rib 122. A second reinforcing rib 222 is provided on the second side wall 22, the second reinforcing rib 222 is a strip structure 01, the second reinforcing rib 222 is located in the curved surface where the second side wall 22 is located, and the second reinforcing rib 222 is connected to the strip structure 01 of the second side wall 22 on the extension path of the second reinforcing rib 222.

[0073] It can be understood that, in the embodiment of the present application, the first reinforcing rib 122 can strengthen the first side wall 12, and the second reinforcing rib 222 can strengthen the second side wall 22. In the embodiment of the present application, the position of the first reinforcing rib 122 on the first side wall 12 is not limited. For example, refer to Figure 1 The first reinforcing rib 122 may extend from the edge of one end of the first side wall 12 to the edge of the other end of the first side wall 12. Similarly, in the embodiment of the present application, the position of the second reinforcing rib 222 on the second side wall 22 is not limited. For example, refer to Figure 1 The second reinforcing rib may extend from an edge of one end of the second side wall 22 to an edge of the other end of the second side wall 22 .

[0074] Further, see Figure 1 , the first reinforcing rib 122 and the strip structure 01 of the first side wall 12 on the extension path of the first reinforcing rib 122 can be made into an integral structure, so that the first reinforcing rib 122 and the strip structure 01 of the first side wall 12 on the extension path of the first reinforcing rib 122 can be connected together. Figure 1 The second reinforcing rib 222 and the strip structure 01 of the second side wall 22 on the extension path of the second reinforcing rib 222 can be made into an integral structure, so that the second reinforcing rib 222 and the strip structure 01 of the second side wall 22 on the extension path of the second reinforcing rib 222 can be connected together.

[0075] Through the above-mentioned arrangement, in the 3D printed personalized modular support prosthesis provided in the embodiment of the present application, the first reinforcing rib 122 can be used to reinforce the first side wall 12, thereby increasing the force-bearing strength of the first side wall 12, and further enabling the first support body 1 to provide better support; at the same time, the second reinforcing rib 222 can be used to reinforce the second side wall 22, thereby increasing the force-bearing strength of the second side wall 22, and further enabling the second support body 2 to provide better support.

[0076] On this basis, refer to Figure 1 In some embodiments of the present application, the extension direction of the plane where the first reinforcing rib 122 is located is perpendicular to the extension direction of the plane where the first assembly surface 111 is located; the extension direction of the plane where the second reinforcing rib 222 is located is perpendicular to the extension direction of the plane where the second assembly surface 211 is located.

[0077] It can be understood that in the embodiment of the present application, by adaptively setting the shape and position of the first reinforcing rib 122, the first reinforcing rib 122 can be located in a plane. On this basis, by adaptively setting the extension direction of the plane where the first reinforcing rib 122 is located, the extension direction of the plane where the first reinforcing rib 122 is located can be perpendicular to the extension direction of the plane where the first assembly surface 111 is located. For example, refer to Figure 1 and Figure 2 ,by Figure 1 The relative position in is used as an example to illustrate. Figure 1 In the figure, the plane where the first assembly surface 111 is located is the horizontal direction, and the plane where the first reinforcing rib 122 is located is the vertical direction.

[0078] Similarly, in the embodiment of the present application, by adaptively setting the shape and position of the second reinforcing rib 222, the second reinforcing rib 222 can be located in a plane. On this basis, by adaptively setting the extension direction of the plane where the second reinforcing rib 222 is located, the extension direction of the plane where the second reinforcing rib 222 is located can be perpendicular to the extension direction of the plane where the second assembly surface 211 is located. For example, refer to Figure 1 and Figure 2 ,by Figure 1 The relative position in is used as an example to illustrate. Figure 1 In the figure, the plane where the second assembly surface 211 is located is the horizontal direction, and the plane where the second reinforcing rib 222 is located is the vertical direction.

[0079] Through the above arrangement, the reinforcing effect of the first reinforcing rib 122 on the first supporting body 1 can be further improved; and the reinforcing effect of the second reinforcing rib 222 on the second supporting body 2 can be further improved.

[0080] On this basis, refer to Figure 1 In some embodiments of the present application, the plane where the first reinforcing rib 122 is located coincides with the plane where the second reinforcing rib 222 is located.

[0081] Specifically, refer to Figure 1 By adaptively setting the position of the plane where the first reinforcing rib 122 is located and the position of the plane where the second reinforcing rib 222 is located, the plane where the first reinforcing rib 122 is located and the plane where the second reinforcing rib 222 is located can be made to coincide with each other.

[0082] Through the above-mentioned arrangement, in the 3D printed personalized modular support prosthesis provided in the embodiment of the present application, the first reinforcing ribs 122 and the second reinforcing ribs 222 can be utilized to reinforce the first support body 1 and the second support body 2 as a whole, thereby further improving the supportability of the 3D printed personalized modular support prosthesis provided in the embodiment of the present application.

[0083] In summary, in the 3D printed personalized modular support prosthesis provided in the embodiment of the present application, the advantage of 3D printing in facilitating the printing of complex structures can be utilized to manufacture the first support body 1 and the second support body 2, and a more precise matching can be performed according to the contour of the bone defect, thereby ensuring that the 3D printed personalized modular support prosthesis provided in the embodiment of the present application forms a good support and a good bone contact surface.

[0084] On this basis, by setting the first support body 1 and the second support body 2 into a grid structure, the pores of the grid structure of the first support body 1 and the second support body 2 can be used to make the 3D printed personalized modular support prosthesis provided by the embodiment of the present application better interact with the surrounding bone, which is conducive to bone growth. In addition, by setting the 3D printed personalized modular support prosthesis provided by the embodiment of the present application in the form of assembling the first support body 1 and the second support body 2, it can be more convenient during the installation process, and at the same time, the area of ​​the bone cortex window when scraping and grafting can be reduced.

[0085] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the serial numbers of the above-mentioned steps / processes does not mean the order of execution, and the execution order of each step / process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are for description only and do not represent the advantages and disadvantages of the embodiments.

[0086] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0087] The above is only an implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A 3D printed personalized modular support prosthesis, characterized in that: Used to fill in the bone defect area, the 3D printed personalized modular support prosthesis includes: A first support body, formed by 3D printing, and provided with a first assembly surface; A second support body, formed by 3D printing, and provided with a second assembly surface; The shape contours of the first assembly surface and the second assembly surface match, the first support body and the second support body are abutted together through the first assembly surface and the second assembly surface, and the outer contour of the first support body and the second support body after being assembled together matches the contour of the bone defect area.

2. The 3D printed personalized modular support prosthesis according to claim 1, characterized in that: The first supporting body includes a first bottom wall and a first side wall, the first bottom wall is a planar structure, the first side wall is a curved structure, the edge of the first side wall is connected to the edge of the first bottom wall, and the surface of the first bottom wall away from the first side wall forms the first assembly surface; the second supporting body includes a second bottom wall and a second side wall, the second bottom wall is a planar structure, the second side wall is a curved structure, the edge of the second side wall is connected to the edge of the second bottom wall, and the surface of the second bottom wall away from the second side wall forms the second assembly surface.

3. The 3D printed personalized modular support prosthesis according to claim 2, characterized in that: The first bottom wall includes a first support ring, a second support ring and a plurality of strip structures, the second support ring is arranged on the periphery of the first support ring, and the plurality of strip structures of the first bottom wall are connected between the first support ring and the second support ring; the second bottom wall includes a third support ring, a fourth support ring and a plurality of strip structures, the fourth support ring is arranged on the periphery of the third support ring, and the plurality of strip structures of the second bottom wall are connected between the third support ring and the fourth support ring.

4. The 3D printed personalized modular support prosthesis according to claim 3, characterized in that: The third support ring extends beyond the second assembly surface on a side facing the first support ring, and a portion of the third support ring extending beyond the second assembly surface extends into the first support ring.

5. The 3D printed personalized modular support prosthesis according to claim 3, characterized in that: The first supporting ring and the third supporting ring are both circular rings.

6. The 3D printed personalized modular support prosthesis according to claim 3, characterized in that: The first side wall is formed by a plurality of strip structures, the strip structures of the plurality of first side walls are staggeredly connected to the second support ring, the strip structures of the plurality of first side walls are staggeredly connected to form a first grid gap, and the shape of the first grid gap is a triangle.

7. The 3D printed personalized modular support prosthesis according to claim 6, characterized in that: The second side wall is formed by a plurality of strip structures, the plurality of strip structures of the second side walls are staggeredly connected to the fourth support ring, the plurality of strip structures of the second side walls are staggeredly connected to form a second grid gap, and the shape of the second grid gap is a triangle.

8. The 3D printed personalized modular support prosthesis according to claim 7, characterized in that: A first reinforcing rib is disposed on the first side wall, the first reinforcing rib is a strip structure, the first reinforcing rib is located in the curved surface where the first side wall is located, and the first reinforcing rib is connected to the strip structure of the first side wall on the extension path of the first reinforcing rib; A second reinforcing rib is provided on the second side wall. The second reinforcing rib is a strip structure. The second reinforcing rib is located in the curved surface where the second side wall is located, and the second reinforcing rib is connected to the strip structure of the second side wall on the extension path of the second reinforcing rib.

9. The 3D printed personalized modular support prosthesis according to claim 8, characterized in that: The extension direction of the plane where the first reinforcing rib is located is perpendicular to the extension direction of the plane where the first assembly surface is located; the extension direction of the plane where the second reinforcing rib is located is perpendicular to the extension direction of the plane where the second assembly surface is located.

10. The 3D printed personalized modular support prosthesis according to claim 9, characterized in that: The plane where the first reinforcing rib is located coincides with the plane where the second reinforcing rib is located.

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