Trabecular Bionics and Implants

Abstract

The present invention provides a trabecular bionic component and an implant, and relates to the technical field of medical devices. The trabecular bionic component includes a trabecular bionic body and a mesh protective shell. The mesh protective shell is a cylindrical structure. A hollow hole is formed in the cylinder of the mesh protective shell, and the outer cylinder wall of the mesh protective shell is provided with a first external thread; the mesh protective shell is hollow to form a receiving cavity, and the trabecular bionic body is received in the receiving cavity. The implant includes a connector and the above-mentioned trabecular bionic component. The connector includes a first connector and a second connector along its length direction. The second connector extends into the hollow hole of the trabecular bionic component and is connected to the trabecular bionic component. The mesh protective shell of the trabecular bionic component can cover and support the trabecular bionic body, thereby reducing the impact of the fracture of the trabecular bionic component on the implantation process and the complications caused. In addition, the mesh protective shell can be connected to the bone tissue, and can effectively increase the effective bone bonding length of the trabecular bionic component.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a trabecular bionic part and an implant. Background Art

[0002] Oral craniofacial implant technology is a technology that uses surgical procedures to implant implants with good biocompatibility into the jawbone of the human oral edentulous area or into the bone tissue of the craniofacial defect area as a retainer for artificial tooth roots or craniofacial prostheses to repair oral dental and craniofacial defects. Currently, the advanced bone fusion implant system is not only used for implant denture restoration, as a fixing device for repairing defects, but can also be implanted in the zygomatic bone, skull, mastoid, and periorbital area to complete the retention of maxillofacial prostheses such as artificial jaws, artificial ears, artificial eyes, and hearing aids, solving some problems in the repair of oral craniofacial defects caused by trauma and tumors.

[0003] In order to improve the degree of bone integration between the implant and the bone tissue after implantation, the existing implant generally includes a trabecular bionic segment that imitates the trabecular structure of the human body. However, due to the presence of many sharp breakpoints on the surface of the trabecular bionic segment, the overall strength of the trabecular bionic segment is poor and it is easy to break. Therefore, the existing implant generally has a connecting segment at the bottom of the trabecular bionic segment for connecting with the bone tissue, resulting in a short effective bone integration length between the implant and the bone tissue after implantation. In addition, the trabecular bionic segment is easily broken during the implantation process, which affects the implantation of the implant and may even cause other complications. Summary of the invention

[0004] The purpose of the present invention includes providing a trabecular bionic part and an implant to solve the technical problems that the trabecular bionic segment in the existing implant is easy to break, affecting the implantation of the implant and even causing other complications, and the effective bone bonding length of the existing implant after implantation is short.

[0005] In order to solve the above problems, the present invention provides a trabecular bionic part, including a trabecular bionic body and a mesh protective shell, the mesh protective shell is a cylindrical structure, a hollow hole is formed in the cylinder of the mesh protective shell, and the outer cylinder wall of the mesh protective shell is provided with a first external thread; the mesh protective shell is hollow to form a accommodating cavity, and the trabecular bionic body is accommodated in the accommodating cavity.

[0006] Optionally, the mesh protective shell and the outer tube wall corresponding to the first external thread include a top mesh wire and a side mesh wire, the top mesh wire extends along the top of the first external thread, the side mesh wire is connected between the top mesh wire and the bottom corresponding to the first external thread, and the side mesh wire located on the first side of the top mesh wire forms a first side mesh surface, and the side mesh wire located on the second side of the top mesh wire forms a second side mesh surface.

[0007] Optionally, the mesh protective shell and the outer cylinder wall corresponding to the first external thread further include a root mesh wire extending along the root of the first external thread, and the side mesh wire is connected between the top mesh wire and the root mesh wire corresponding to the first external thread.

[0008] Optionally, the trabecular bionic part further includes a tubular reinforcement body, which is located in the accommodating cavity and is sleeved on the inner cylinder of the mesh protective shell.

[0009] Optionally, a spiral body is arranged around the top tube section of the reinforcement body; the accommodating cavity includes a reinforcement cavity and a bionic cavity from top to bottom, the spiral body is matched and embedded in the reinforcement cavity, and the trabecular bionic body is filled in the bionic cavity.

[0010] Optionally, the mesh protective shell includes a connecting section and a guiding section from top to bottom, the first external thread is located on the outer cylinder wall of the connecting section, and the outer cylinder wall of the guiding section is in a constricted shape from top to bottom.

[0011] Optionally, the bottom pipe section of the reinforcement body extends into the corresponding cavity of the guide section, and the inner wall of the bottom pipe section is provided with an internal thread, which protrudes out of the hollow hole and is used to be connected to a connector of the implant.

[0012] The present invention also provides an implant, comprising a connector and the above-mentioned trabecular bionic part, wherein the connector comprises a first connector and a second connector along its length direction, and the second connector extends into the hollow hole of the trabecular bionic part and is connected to the trabecular bionic part.

[0013] Optionally, the outer contour of the side wall of the second connector is consistent with the outer contour of the side wall of the mesh protective shell of the trabecular bionic component where the first external thread section is arranged.

[0014] Optionally, the outer wall of the first connector is provided with a second external thread, the lead of the first external thread is equal to that of the second external thread, and the pitch of the first external thread is N times the pitch of the second external thread, wherein N is an integer greater than 1.

[0015] The trabecular bionic part and implant provided by the present invention, on the one hand, a mesh protective shell serves as a protection and support structure and covers the outside of the trabecular bionic body, and the extended end on the outside of the trabecular bionic body is connected to the inner wall of the mesh protective shell accommodating cavity, or is located in the accommodating cavity of the mesh protective shell. The outer wall of the mesh protective shell has high smoothness and uniformity, correspondingly high strength, and a low probability of fracture under stress, thereby reducing the impact of the trabecular bionic body fracture on the implantation during the implantation of the trabecular bionic part and the occurrence of complications, thereby correspondingly improving the implantation success rate and implantation safety of the implant. On the other hand, the mesh protective shell is mesh-covered on the outside of the trabecular bionic body. The setting of the mesh protective shell has a small effect on the increase in the length of the entire trabecular bionic part. A first external thread is set on the outer wall of the mesh protective shell, and the trabecular bionic part is connected to the bone tissue through the first external thread. When the depth of the threaded hole opened on the bone tissue is certain, the trabecular bionic part of the present application can be integrated with the bone tissue as a whole, that is, the effective bone integration length with the bone tissue is longer, which correspondingly improves the bone integration firmness of the implant and the bone tissue, and reduces the occurrence of implant loosening or even falling off in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1 A schematic diagram of an implant provided by the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the connector in the implant;

[0019] Figure 3 A schematic diagram of a trabecular bionic component provided by the present invention;

[0020] Figure 4 for Figure 3 Exploded view of the trabecular bone biomimetic component.

[0021] Description of reference numerals:

[0022] 100-trabecular bionic part; 110-mesh protective shell; 111-connecting section; 112-first external thread; 112a-tooth top mesh wire; 112b-tooth bottom mesh wire; 112c-tooth side mesh wire; 112d-first side mesh surface; 112e-second side mesh surface; 113-guide section; 114-hollow hole; 120-trabecular bionic body; 130-reinforcement body; 131-spiral body; 200-connecting part; 210-first connecting body; 211-second external thread; 220-second connecting body; 221-third external thread. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] This embodiment provides a trabecular bionic component 100, such as Figure 3 and Figure 4 As shown, it includes a trabecular bionic body 120 and a mesh protective shell 110. The mesh protective shell 110 is a cylindrical structure. A hollow hole 114 is formed in the cylinder of the mesh protective shell 110, and the outer cylinder wall of the mesh protective shell 110 is provided with a first external thread 112; the mesh protective shell 110 is hollow to form a receiving cavity, and the trabecular bionic body 120 is received in the receiving cavity.

[0025] This embodiment also provides an implant, such as Figure 1-Figure 3 As shown, it includes a connecting member 200 and the above-mentioned trabecular bionic member 100. The connecting member 200 includes a first connecting body 210 and a second connecting body 220 along its length direction. The second connecting body 220 extends into the hollow hole 114 of the trabecular bionic member 100 and is connected to the trabecular bionic member 100.

[0026] The present embodiment provides a trabecular bionic part 100 and an implant, wherein the trabecular bionic part 100 includes a trabecular bionic body 120 for biomimetic human trabecular structure to ensure the firmness of bone tissue growth and fusion therewith, and a mesh protective shell 110 covering the outside of the trabecular bionic body 120 for protecting it to improve the strength of the entire trabecular bionic part 100 and used for connecting to the implantation site of the human body; wherein the implant includes the above-mentioned trabecular bionic part 100 for implantation into the implantation site of the human body and a connector 200 for connecting to a prosthesis.

[0027] When in use, the second connector 220 of the connector 200 is inserted into the hollow hole 114 of the trabecular bionic component 100 and connected thereto to form an implant, a threaded hole matching the first external thread 112 is opened at the bone tissue of the implantation site of the human body, and then the trabecular bionic component 100 is screwed into the threaded hole, that is, the mesh protective shell 110 is threadedly connected to the bone tissue through the first external thread 112, thereby completing the initial connection between the implant and the bone tissue; after a period of time, the bone tissue can grow into the bone tissue through the gap of the mesh protective shell 110. The pores in the trabecular bionic body 120 are integrated with the mesh protective shell 110 and the trabecular bionic body 120 to achieve good and stable bone integration between the bone tissue and the trabecular bionic part 100, and accordingly improve the long-term stability of the implant after implantation, and reduce the occurrence of the situation that the patient needs multiple repairs or even secondary implants due to the loosening of the implant in the later period; the connector 200 itself includes a base or a base is subsequently installed on the top of the connector 200, and after the soft tissue is healed, a crown or other prosthesis is installed on the base to complete the implant repair. Specifically, the implant can be implanted in the oral cavity, zygomatic bone, mastoid process, and periorbital area to complete the retention of maxillofacial prostheses (false face) such as teeth, artificial jaws, artificial ears, artificial eyes, and hearing aids to solve the defect repair of the oral craniofacial region.

[0028] The trabecular bionic body 120 in the trabecular bionic part 100 imitates the irregular three-dimensional network structure of the trabecular tissue of the human body in the shape of a loofah. Figure 4 The center line is for illustration only and does not limit the mesh distribution of the trabecular bionic body 120). On the one hand, the mesh protective shell 110 is used as a protection and support structure to cover the outside of the trabecular bionic body 120. The extended end on the outside of the trabecular bionic body 120 is connected to the inner wall of the accommodating cavity of the mesh protective shell 110, or is located in the accommodating cavity of the mesh protective shell 110. The outer wall of the mesh protective shell 110 has high smoothness and uniformity, correspondingly high strength, and a lower probability of fracture under stress, thereby reducing the impact of the fracture of the trabecular bionic body 120 on the implantation during the implantation of the trabecular bionic part 100 and the occurrence of complications, thereby correspondingly improving the implantation success rate and implantation safety of the implant. On the other hand, the mesh protective shell 110 is mesh-covered on the outside of the trabecular bionic body 120. The setting of the mesh protective shell 110 has a small effect on the increase in the length of the entire trabecular bionic part 100. A first external thread 112 is set on the outer wall of the mesh protective shell 110. The trabecular bionic part 100 is connected to the bone tissue through the first external thread 112. When the depth of the threaded hole opened on the bone tissue is certain, the trabecular bionic part 100 of the present application can be integrated with the bone tissue as a whole, that is, the effective bone integration length with the bone tissue is longer, which correspondingly improves the bone integration firmness of the implant and the bone tissue, and reduces the occurrence of implant loosening or even falling off in the later stage.

[0029] Specifically, the connecting part 200 and the trabecular bionic part 100 can both be made of Ti6Al4V material, and the mesh protective shell 110 and the trabecular bionic body 120 of the trabecular bionic part 100 can be integrally printed by additive manufacturing technology, thereby improving the bonding strength and processing convenience of the mesh protective shell 110 and the trabecular bionic body 120, and the processing process does not need to introduce processing aids to construct a porous structure, and the generated trabecular bionic part 100 has no additive residue.

[0030] Optionally, in this embodiment, if Figure 4 As shown, the mesh protective shell 110 and the outer cylinder wall corresponding to the first external thread 112 may include a crest mesh wire 112a and a side mesh wire 112c, the crest mesh wire 112a extends along the crest of the first external thread 112, the side mesh wire 112c is connected between the crest mesh wire 112a and the bottom of the first external thread 112, and the side mesh wire 112c located on the first side of the crest mesh wire 112a forms a first side mesh surface 112d, and the side mesh wire 112c located on the second side of the crest mesh wire 112a forms a second side mesh surface 112e. Here is a specific form of a section of the outer cylinder wall of the mesh protective shell 110 provided with the first external thread 112, the section of the outer cylinder wall includes a crest mesh wire 112a as the crest spiral line of the first external thread 112, and the two sides of the crest mesh wire 112a are respectively connected between the root and the crest mesh wire 112a, and the first side mesh surface 112d and the second side mesh surface 112e formed by the side mesh wire 112c on both sides of the crest mesh wire 112a as the first external thread 1 The two side walls of the 12 screw teeth, the outer surfaces of the top mesh wire 112a, the first side mesh surface 112d and the second side mesh surface 112e are all smoothly transitioned spiral lines or smoothly transitioned curved surfaces without sharp breakpoints, thereby ensuring the overall strength and overall smoothness of the first external thread 112 and the mesh protective shell 110, and correspondingly ensuring the protection and support of the mesh protective shell 110 on the trabecular bionic body 120, and ensuring the connection strength and firmness of the mesh protective shell 110 and the bone tissue.

[0031] Specifically, in this embodiment, Figure 4As shown, the mesh protective shell 110 and the outer cylinder wall corresponding to the first external thread 112 may also include a tooth bottom mesh wire 112b extending along the tooth bottom of the first external thread 112, and the tooth side mesh wire 112c is connected between the tooth top mesh wire 112a and the tooth bottom mesh wire 112b corresponding to the first external thread 112. The tooth bottom mesh wire 112b serves as a spiral line of the tooth bottom of the first external thread 112, and the tooth side mesh wire 112c is connected between the tooth top mesh wire 112a and the tooth bottom mesh wire 112b to form a first side mesh surface 112d and a second side mesh surface 112e. The tooth bottom mesh wire 112b and the tooth top mesh wire 112a together play a shaping support role in the formation of the first external thread 112, thereby further improving the overall strength and overall smoothness of the first external thread 112 and the mesh protective shell 110, and correspondingly further ensuring the connection strength and firmness of the mesh protective shell 110 with the bone tissue, thereby improving the implantation firmness and safety of the implant.

[0032] Optionally, in this embodiment, if Figure 3 and Figure 4 As shown, the trabecular bionic part 100 may also include a tubular reinforcement body 130, which is located in the accommodating cavity and is sleeved on the inner cylinder of the mesh protective shell 110. The mesh protective shell 110 includes a sleeved inner cylinder and an outer cylinder, wherein a hollow hole 114 for connecting to the connector 200 is formed inside the inner cylinder, and the tubular reinforcement body 130 is sleeved on the inner cylinder, thereby supporting the center position of the entire mesh protective shell 110, and correspondingly improving the overall strength of the trabecular bionic part 100, reducing the occurrence of stress deformation of the mesh protective shell 110 during the implantation process, and thus improving the usability of the implant. Specifically, the reinforcement body 130 may be a solid body, providing higher support and strength for the mesh protective shell 110 and the trabecular bionic body 120 at the same volume. Specifically, the radial thickness of the mesh protective shell 110 and the trabecular bionic body 120 may be 0.5-1.5 mm.

[0033] Specifically, in this embodiment, Figure 4 As shown, the top pipe section of the reinforcement body 130 is surrounded by a spiral body 131; the accommodating cavity includes a reinforcement cavity and a bionic cavity from top to bottom, the spiral body 131 is matched and embedded in the reinforcement cavity, and the trabecular bionic body 120 is filled in the bionic cavity. On the basis that the pipe section of the reinforcement body 130 supports the central position of the mesh protective shell 110, the spiral body 131 at the top of the reinforcement body 130 is matched and embedded in the reinforcement cavity at the upper part of the accommodating cavity, which can effectively improve the strength of the upper position of the trabecular bionic part 100, and correspondingly improve the supporting and limiting effect of this position on the connecting piece 200, reduce the force of the prosthesis in the later use, and transmit the force to the trabecular bionic part 100 through the connecting piece 200, resulting in deformation of the upper position of the trabecular bionic part 100, and then cause the loosening of the connecting piece 200, and correspondingly improve the strength and stability of the implant.

[0034] Alternatively, if Figure 4 As shown, the mesh protective shell 110 may include a connecting section 111 and a guiding section 113 from top to bottom, the first external thread 112 is located on the outer cylinder wall of the connecting section 111, and the outer cylinder wall of the guiding section 113 is in a constricted shape from top to bottom. The space between the outer wall and the inner cylinder wall of the guiding section 113 is also filled with a trabecular bionic body 120 as part of the bionic cavity, and the outer wall of the guiding section 113 is in a constricted shape from top to bottom. When implanting the implant, the outer wall of the guiding section 113 may be used as a guide surface to guide and limit the center of the trabecular bionic part 100 inserted into the threaded hole, thereby ensuring the correspondence between the first external thread 112 and the threaded hole on the bone tissue, thereby improving the convenience and accuracy of implant implantation, and reducing the occurrence of the first external thread 112 and the threaded hole being locked due to the tilt of the implant insertion.

[0035] Specifically, in this embodiment, Figure 1 As shown, the outer contour of the side wall of the second connector 220 is consistent with the outer contour of the side wall of the first external thread 112 of the mesh protective shell 110 of the trabecular bionic part 100. After the connector 200 is connected to the trabecular bionic part 100 to form an implant, the second connector 220 protrudes upward from the trabecular bionic part 100, and the outer contour of the side wall of the second connector 220 is consistent with the outer contour of the side wall of the first external thread 112 of the mesh protective shell 110. Then the outer contour of the implant formed by the two is a cylindrical shape with equal diameters, and the integrity of the implant is higher. After the implant is implanted into the threaded hole, the second connector 220 has a higher fit with the wall of the threaded hole, and accordingly, the position accuracy and stability of the implant are also higher. Specifically, the outer diameter range of the second connector 220 can be 3-5mm, and the length of the entire implant can be 4-8mm.

[0036] Optionally, in this embodiment, if Figure 1 and Figure 2As shown, a second external thread 211 can be provided on the outer wall of the first connector 210 , the lead of the first external thread 112 is equal to that of the second external thread 211 , and the pitch of the first external thread 112 is N times the pitch of the second external thread 211 , where N is an integer greater than 1. The internal thread of the threaded hole opened on the bone tissue matches the first external thread 112 of the mesh protective shell 110, and the lead and pitch of the two are equal. The lead of the second external thread 211 is equal to the second external thread 211, and the pitch of the first external thread 112 is an integer multiple of the pitch of the second external thread 211 greater than 1. Then, during the implantation process, the trabecular bionic part 100 is first screwed to the internal thread of the threaded hole through the first external thread 112. As the screwing in continues, the second external thread 211 on the outer wall of the first connector 210 is also screwed to the internal thread of the threaded hole, and every N thread teeth in the second external thread 211 form a group and cooperate with a thread groove of the internal thread. Then, the second external thread 211 and the internal thread of the threaded hole have higher screwing firmness and sealing, thereby improving the sealing of the implant implanted in the bone tissue, and correspondingly improving the sealing and firmness of the combination of the implant and the bone tissue, and can reduce the occurrence of the situation where the poor sealing of the implant to the bone tissue affects the later healing speed and effect. Specifically, N can be 2, 3 or 4.

[0037] Specifically, when the top of the connecting member does not include a base, a hexagonal tapered hole may be provided on the top of the first connecting body for mating connection with the base.

[0038] Specifically, in this embodiment, the bottom tube section of the reinforcement body 130 extends into the corresponding cavity of the guide section 113, and the inner wall of the bottom tube section is provided with an internal thread, which protrudes from the hollow hole 114 and is used to connect with the connector 200 of the implant. This is a specific connection method between the trabecular bionic component 100 and the connector 200. The bottom outer wall of the second connector 220 is provided with a third external thread 221 that matches the internal thread. When connecting, the second connector 220 is first inserted into the hollow hole 114 and inserted into its bottom coaxially with the hollow hole 114 under the guidance of the hollow hole 114 until the third external thread 221 reaches the position of the internal thread, and then the connector 200 is rotated, and the third external thread 221 is screwed with the internal thread, thereby completing the connection between the connector 200 and the trabecular bionic component. 100; wherein, the internal thread is arranged at the bottom pipe section of the reinforcement body 130, and the reinforcement body 130 itself has high strength and firmness, and the internal thread is arranged on it to connect with the connector 200, on the basis of realizing the connection between the connector 200 and the trabecular bionic part 100, it can effectively reduce the damage to its strength caused by the internal thread arranged on the inner cylinder wall of the mesh protective shell 110, and the occurrence of the internal thread being easy to deform, and accordingly ensure the stability of the internal thread, and ensure the connection between the connector 200 and the trabecular bionic part 100. Of course, in other embodiments, the second connector can also be connected to the inner wall of the hollow hole by thread connection, snap connection, etc., and the second connector can also be connected to the reinforcement body by snap connection, etc.

[0039] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants 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, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0040] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A trabecular bionic component, characterized in that: The invention comprises a trabecular bionic body (120) and a mesh protective shell (110), wherein the mesh protective shell (110) is a cylindrical structure, a hollow hole (114) is formed in the cylinder of the mesh protective shell (110), and the outer cylinder wall of the mesh protective shell (110) is provided with a first external thread (112); the mesh protective shell (110) is hollow inside to form a receiving cavity, the trabecular bionic body (120) is received in the receiving cavity, and the mesh protective shell (110) and the trabecular bionic body (120) are integrally printed and formed by using additive manufacturing technology; The mesh protective shell (110) and the outer cylinder wall corresponding to the first external thread (112) include a crest mesh wire (112a) and a side mesh wire (112c), wherein the crest mesh wire (112a) extends along the crest of the first external thread (112), and the side mesh wire (112c) is connected between the crest mesh wire (112a) and the root of the first external thread (112), and the side mesh wire (112c) located on the first side of the crest mesh wire (112a) forms a first side mesh surface (112d), and the side mesh wire (112c) located on the second side of the crest mesh wire (112a) forms a second side mesh surface (112e).

2. The trabecular bionic component according to claim 1, characterized in that: The mesh protective shell (110) and the outer cylinder wall corresponding to the first external thread (112) further include a root mesh wire (112b) extending along the root of the first external thread (112), and the side mesh wire (112c) is connected between the top mesh wire (112a) and the root mesh wire (112b) corresponding to the first external thread (112).

3. The trabecular bionic component according to claim 1 or 2, characterized in that: The trabecular bionic part (100) further comprises a tubular reinforcement body (130), wherein the reinforcement body (130) is located in the accommodating cavity and is sleeved on the inner cylinder of the mesh protective shell (110).

4. The trabecular bionic component according to claim 3, characterized in that: The top tube section of the reinforcement body (130) is surrounded by a spiral body (131); the accommodating cavity comprises a reinforcement cavity and a bionic cavity from top to bottom; the spiral body (131) is matched and embedded in the reinforcement cavity; and the trabecular bionic body (120) is filled in the bionic cavity.

5. The trabecular bionic component according to claim 3, characterized in that: The mesh protective shell (110) comprises a connecting section (111) and a guiding section (113) from top to bottom, the first external thread (112) is located on the outer cylinder wall of the connecting section (111), and the outer cylinder wall of the guiding section (113) is in a constricted shape from top to bottom.

6. The trabecular bionic component according to claim 5, characterized in that: The bottom pipe section of the reinforcement body (130) extends into the corresponding cavity of the guide section (113), and the inner wall of the bottom pipe section is provided with an internal thread, which protrudes from the hollow hole (114) and is used to connect with the connector (200) of the implant.

7. An implant, characterized in that: The invention comprises a connecting piece (200) and the trabecular bionic piece (100) according to any one of claims 1 to 6, wherein the connecting piece (200) comprises a first connecting body (210) and a second connecting body (220) along its length direction, and the second connecting body (220) extends into a hollow hole (114) of the trabecular bionic piece (100) and is connected to the trabecular bionic piece (100).

8. The implant according to claim 7, characterized in that: The outer contour of the side wall of the second connector (220) is consistent with the outer contour of the side wall of a section of the mesh protective shell (110) of the trabecular bionic component (100) where the first external thread (112) is arranged.

9. The implant according to claim 8, characterized in that: The outer wall of the first connecting body (210) is provided with a second external thread (211), the lead of the first external thread (112) is equal to that of the second external thread (211), and the pitch of the first external thread (112) is N times the pitch of the second external thread (211), wherein N is an integer greater than 1.

Images