Splicing skull repairing system

Abstract

The utility model relates to the technical field of skull repairing, in particular to a splicable skull repairing system which comprises a first skull repairing piece, a second skull repairing piece and a plurality of connecting assemblies used for connecting the first skull repairing piece and the second skull repairing piece to the skull of the human body, and the first skull repairing piece and the second skull repairing piece are arranged in an up-down spaced mode. The first skull repairing piece comprises a plurality of first splicing strips which are arranged side by side in an abutting mode, the second skull repairing piece comprises a plurality of second splicing strips which are arranged side by side in an abutting mode, and the arrangement direction of the second splicing strips and the arrangement direction of the first splicing strips are staggered; a plurality of convex tongues are arranged on the second skull repairing sheet in an array mode, and a plurality of clamping grooves are formed in the first skull repairing sheet in an array mode; and the second skull repairing sheet is connected with the first skull repairing sheet through the clamping matching of the convex tongue and the clamping groove. The skull repair block has the advantages that the risk that the skull repair block collapses when bearing impact is reduced, the strength of the spliced skull repair block is improved, a patient is protected, the operation time is shortened, and the cost and the postoperative infection rate are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of skull repair, and in particular to a splicable skull repair system. Background Art

[0002] Cranioplasty is one of the most common neurosurgery operations. Its main purpose is to restore the airtightness of the cranial cavity, prevent further damage to brain tissue, and treat skull defect syndrome.

[0003] Small skull defects are typically repaired with a single-piece skull patch, with flaps placed around the edges to connect with the native skull. However, due to the thickness limitations of existing materials, large skull defects with large curvatures cannot be repaired with a single-piece prosthesis. Instead, the prosthesis must be processed and formed into smaller pieces to accommodate the thickness of the material, and then assembled for clinical implantation.

[0004] In the related art, the patent with application publication number CN119015019A discloses a skull repair component, which includes multiple sub-modules, and the multiple sub-modules can be spliced ​​together to form a repair block. The shape of the repair block is consistent with the shape of the skull to be repaired; the thickness of each sub-module is consistent and consistent with the thickness of the skull; the sub-module is long and narrow, and the cross-section of the sub-module is not greater than 0.5cm*2cm; on the repair block, any two adjacent sub-modules are spliced ​​together by a splicing structure, and any two adjacent sub-modules are respectively a first module and a second module, and the splicing structure includes a splicing block arranged on the first module and a splicing groove arranged on the second module, and the splicing block and the splicing groove both extend in the thickness direction of the corresponding sub-module, and the splicing block is plugged into the splicing groove.

[0005] However, in the above-mentioned related technologies, the sub-modules are spliced ​​along the thickness direction to form a skull repair block. When the repair block is subjected to an impact perpendicular to its thickness direction, it is easy for the sub-modules to become misaligned and loose, which in turn causes the repair block to collapse, seriously threatening the patient's life safety. Utility Model Content

[0006] In order to reduce the risk of collapse of the skull repair block when subjected to impact, improve the strength of the skull repair block after splicing, and protect the patient, the present application provides a splicable skull repair system.

[0007] The present application provides a splicable skull repair system that adopts the following technical solutions:

[0008] A splicable skull repair system, comprising:

[0009] The first skull patch comprises a plurality of first splicing strips arranged side by side and in abutment with each other;

[0010] A second skull patch is spaced apart from the first skull patch in an upper and lower arrangement; the second skull patch includes a plurality of second splicing strips arranged side by side and abutting each other, the second splicing strips being arranged in an arrangement direction that is staggered with the arrangement direction of the first splicing strips; a plurality of tongues are provided in an array on a side of the second skull patch adjacent to the first skull patch, and a plurality of slots are provided in an array on a side of the first skull patch adjacent to the second skull patch; the second skull patch is connected to the first skull patch by the engagement of the tongues with the slots;

[0011] A plurality of connection components are arranged around the first skull patch and the second skull patch and are used to connect the first skull patch and the second skull patch to the human skull.

[0012] By adopting the above-mentioned technical solution, the risk of collapse of the skull patch under impact is reduced, and the strength of the assembled skull patch is improved, as well as the protection provided to the patient. Specifically, multiple first and second splicing strips are arranged in a staggered grid pattern and connected by tongues and slots to form the overall skull patch. This improves the connection strength between the first and second splicing strips, preventing misalignment and loosening between them during impact, thereby reducing the risk of collapse of the skull patch under impact. The first and second skull patch pieces are connected to the human skull using a connecting assembly, securing the system to the skull and better protecting the patient. Furthermore, this system addresses the time-consuming and expensive production of traditional monolithic skull patch panels. It offers advantages such as ease of operation, precise fit, reliable strength, low cost, and ease of autologous skull growth. Prefabricated skull patch pieces are quickly assembled using a positioning structure, eliminating the need for manual shaping during surgery, reducing surgical time by over 40%. The postoperative infection rate is 15% lower than that of traditional titanium mesh, making it particularly suitable for repairing skull defects of various complex shapes and sizes.

[0013] Optionally, the first skull patch is provided with a first through hole running through its upper and lower surfaces; the second skull patch is provided with a second through hole running through its upper and lower surfaces, and the first through hole and the second through hole are coaxially connected.

[0014] By adopting this technical solution, the first and second through-holes establish effective postoperative drainage channels, which not only prevent the accumulation of blood, serum, or tissue fluid on both sides of the first and second skull patches after surgery, but also promote tissue ingrowth and revascularization, improve the healing environment, and accelerate the patient's postoperative recovery. It also reduces the weight of the first and second skull patches, improving patient comfort.

[0015] Optionally, after the tongue is engaged with the slot, a gap is formed between the first skull patch and the second skull patch, and the gap is connected to the first through hole and the second through hole.

[0016] By adopting the above-mentioned technical solution, the pores of the first skull patch and the second skull patch can provide space and channels for the surrounding soft tissue to grow inward during the postoperative recovery process. The newly grown soft tissue or capillaries grow in an interlaced manner through the pores, the first through holes and the second through holes, thereby improving the bonding strength and integrity between the human tissue and the first skull patch and the second skull patch, further increasing the impact resistance of the repair area and the protection of the patient.

[0017] Optionally, the tongue includes a connecting portion and a clamping portion, one end of the connecting portion is connected to the second splicing strip, and the other end is coaxially connected to the clamping portion, and the clamping portion protrudes from the side wall of the connecting portion; the slot includes a coaxially connected limiting section and a connecting section, one end of the limiting section passes through a side of the first splicing strip close to the second splicing strip, and the other end is connected to the connecting section; the inner diameter of the limiting section is smaller than the diameter of the clamping portion, and the inner diameter of the connecting section is greater than or equal to the diameter of the clamping portion; a limiting boss is formed between the limiting section and the connecting section, and the tongue is slidably clamped in the slot through the abutment between the clamping portion and the limiting boss.

[0018] By adopting the above technical solution, a stable snap-fit ​​between the tongue and the slot can be achieved, thereby enhancing the connection stability between the first skull patch piece and the second skull patch piece, thereby reducing the risk of collapse of the skull patch block when subjected to impact, and improving the strength of the skull patch block after splicing and the protection of the patient.

[0019] Optionally, the length of the connecting section is greater than the length of the clamping portion, and the length of the limiting section is less than the length of the connecting portion; a buffer cavity is formed in the connecting section on the side of the clamping portion away from the connecting portion; and the buffer cavity is filled with a buffer material that can be absorbed by the human body.

[0020] By adopting the above technical solution, the first and second skull patch pieces can produce a certain degree of relative sliding in the thickness direction after being spliced ​​together. This sliding connection not only reduces the pressure on the intracranial tissue from the second skull patch piece when the first skull patch piece as a whole is subjected to external impact, but also reduces the pressure on the scalp from the first skull patch piece when intracranial pressure is excessively high. Furthermore, this sliding connection only occurs during the postoperative recovery process when the human tissue has not yet fully integrated with the repair system. When the human tissue is fully integrated with the repair system, the impact resistance of the repair area is improved. As the human tissue grows, it absorbs the cushioning material and fills the gaps between the tongue and the slot, as well as between the first and second skull patches, thereby eliminating sliding between the first and second skull patches and improving the integrity of the two after they are connected.

[0021] Optionally, the buffer material is porous polylactic acid or a copolymer of polylactic acid and glycolic acid.

[0022] By adopting the above technical solution, a cushioning material made of porous polylactic acid (PLA) or polylactic acid copolymer (PLGA) can have certain cushioning characteristics and can slowly degrade and be absorbed by the human body. In addition, its cushioning performance and degradation rate can be adjusted by controlling the pore size and porosity.

[0023] Optionally, the connecting assembly includes a connecting plate, a first screw and a second screw, one end of the connecting plate is connected to the first skull patch plate and the second skull patch plate through the first screw, and the other end is connected to the human skull through the second screw.

[0024] By adopting the above technical solution, the first skull repair piece and the second skull repair piece can be stably connected to the human skull using the connecting piece, the first screw and the second screw, ensuring the reliable connection between the splicable skull repair system and the human skull and improving the firmness of the system installation.

[0025] Optionally, the first skull repair piece is provided with a connecting piece groove for completely accommodating the end of the connecting piece away from the human skull.

[0026] By adopting the above technical solution, the connecting piece groove can completely accommodate the end of the connecting piece facing away from the human skull, preventing the protrusion of the connecting piece from affecting the fit between the splicable skull repair system and the human skull, making the connection between the first skull repair piece and the human skull tighter and smoother.

[0027] Optionally, the thickness and curvature of the overall structure formed by splicing the first skull repair piece and the second skull repair piece are consistent with the thickness and curvature of the skull that needs to be repaired in the human body.

[0028] By adopting the above technical solution, the overall structure of the skull repair system is adapted to the skull that needs to be repaired in the human body, which can better fit the human skull and improve the repair effect. At the same time, it improves the comfort and safety of patients and reduces the risks caused by the mismatch between the repair structure and the skull.

[0029] Optionally, the slot is opened on the first splicing strip; the tongue is arranged on the second splicing strip, and the tongue located in the middle part of the second splicing strip is an integral structure, and the tongue located at the abutting surface of the two second splicing strips is respectively formed by connecting half of an integral tongue of two second splicing strips and then splicing together to form a complete tongue.

[0030] By adopting the above technical solution, this arrangement enables adjacent second splicing strips to be tightly connected to each other when the tongues are spliced, thereby enhancing the connection strength between the second splicing strips.

[0031] In summary, this application has the following beneficial technical effects:

[0032] 1. It reduces the risk of the skull patch block collapsing when subjected to impact, and improves the strength of the skull patch block after splicing and the protection for the patient. Specifically, a plurality of first splicing strips and a plurality of second splicing strips are arranged in a mesh-like staggered manner and connected by tongues and slots to form an integral skull patch block. This can improve the connection strength between the first splicing strips and the second splicing strips, avoid mutual dislocation and looseness when subjected to impact, and thus reduce the risk of the skull patch block collapsing when subjected to impact; the first skull patch piece and the second skull patch piece are connected to the human skull using a connecting assembly to achieve fixation of the system on the human skull and better protect the patient;

[0033] 2. The pores between the first and second skull patches provide space and channels for the ingrowth of surrounding soft tissue during postoperative recovery. Newly grown soft tissue or capillaries grow through the pores, the first through-holes, and the second through-holes, thereby improving the bonding strength and integrity between human tissue and the first and second skull patches, further enhancing the impact resistance of the repaired area and protecting the patient.

[0034] 3. After being joined, the first and second skull patches are capable of a certain degree of relative sliding in the thickness direction. This sliding connection not only reduces pressure from the second skull patch on intracranial tissue when the first skull patch as a whole is subjected to external impact, but also reduces pressure from the first skull patch on the scalp when intracranial pressure is excessive. Furthermore, this sliding connection only occurs during the postoperative recovery period, when the human tissue has not yet fully integrated with the patch system. Once fully integrated, the impact resistance of the repaired area increases, and as the tissue grows, it absorbs the cushioning material and fills the gaps between the tongue and the slot, as well as between the first and second skull patches. This eliminates sliding between the first and second skull patches and improves their integrity after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0036] Figure 2 It is a schematic diagram of the internal structure of an embodiment of the present application.

[0037] Figure 3 It is a cross-sectional view of an embodiment of the present application.

[0038] Figure 4 yes Figure 3 A partial enlarged view of part A.

[0039] Explanation of the accompanying drawings: 1. First skull patch; 11. First splicing strip; 111. Slot; 1111. Limiting section; 1112. Connecting section; 112. First through hole; 113. Connecting piece groove; 2. Second skull patch; 21. Second splicing strip; 211. Tongue; 2111. Connecting portion; 2112. Connecting portion; 212. Second through hole; 3. Connecting assembly; 31. Connecting piece; 32. First screw; 33. Second screw; 4. Aperture; 5. Limiting boss; 6. Buffer cavity; 7. Buffer material. DETAILED DESCRIPTION

[0040] The following combination Figures 1-4 This application is described in further detail.

[0041] The embodiments of the present application disclose a splicable skull repair system.

[0042] Reference Figure 1 and Figure 2 In this embodiment, the skull repair system includes a first skull repair piece 1, a second skull repair piece 2, and a plurality of connecting components 3. The first skull repair piece 1 and the second skull repair piece 2 are spaced apart from each other, and the two are connected to form a whole by a snap-fitting engagement of a slot 111 provided on the first skull repair piece 1 and a tongue 211 provided on the second skull repair piece 2, and are used to fill the defective part of the patient's skull. The side of the first skull repair piece 1 facing away from the second skull repair piece 2 is close to the scalp, and the side of the second skull repair piece 2 facing away from the first skull repair piece 1 is close to the brain tissue. A plurality of connecting components 3 are arranged around the first skull repair piece 1 and the second skull repair piece 2, and are used to connect the first skull repair piece 1 and the second skull repair piece 2 to the patient's skull.

[0043] Specifically, the first skull patch 1 includes a plurality of first splicing strips 11 arranged side by side and abutted against each other; the second skull patch 2 includes a plurality of second splicing strips 21 arranged side by side and abutted against each other, with the arrangement direction of the second splicing strips 21 being staggered at 90 degrees with the arrangement direction of the first splicing strips 11. An array of multiple tongues 211 is fixed to a side of the second skull patch 2 close to the first skull patch 1, with each second splicing strip 21 having a tongue 211 fixed thereon. An array of multiple slots 111 is provided on a side of the first skull patch 1 close to the second skull patch 2, with each first splicing strip 11 having a slot 111 provided thereon; one tongue 211 is correspondingly engaged with one slot 111.

[0044] In this way, multiple first splicing strips 11 and multiple second splicing strips 21 are arranged in a grid-like staggered manner and connected by the tongue 211 and the slot 111 to form an overall skull repair block, which can improve the connection strength between the first splicing strips 11 and the second splicing strips 21, avoid dislocation and looseness between each other when subjected to impact, and thus reduce the risk of collapse of the skull repair block when subjected to impact; the first skull repair piece 1 and the second skull repair piece 2 are connected to the human skull using the connecting component 3 to achieve fixation of the system on the human skull and better protect the patient.

[0045] Preferably, the thickness and curvature of the overall structure formed by splicing the first skull patch 1 and the second skull patch 2 are consistent with the thickness and curvature of the skull that needs to be repaired in the human body, so that the overall structure of the skull repair system is adapted to the skull that needs to be repaired in the human body, can better fit the human skull, improve the repair effect, and at the same time improve the comfort and safety of patients and reduce stimulation to soft tissue.

[0046] Reference Figure 2 and Figure 3 In this embodiment, the first skull patch 1 is provided with a plurality of first through-holes 112 extending through its upper and lower surfaces; the second skull patch 2 is provided with a plurality of second through-holes 212 extending through its upper and lower surfaces. The first through-holes 112 and the second through-holes 212 are coaxially connected in a one-to-one correspondence. When the tongue 211 engages the slot 111, a gap 4 is formed between the first and second skull patches 1 and 2, which is connected to the first and second through-holes 112 and 212.

[0047] In this way, the first through hole 112 and the second through hole 212 establish a postoperative drainage channel, which can prevent the accumulation of blood, serum, or tissue fluid generated on both sides of the first skull patch 1 and the second skull patch 2 after surgery, promote tissue ingrowth and blood supply reconstruction, improve the healing environment, and accelerate the patient's postoperative recovery. At the same time, the pores 4 can provide space and channels for the surrounding soft tissue to grow inward during the postoperative recovery process. Newly grown soft tissue or capillaries grow in an interlaced manner through the pores 4, the first through hole 112, and the second through hole 212, thereby improving the bonding strength and integrity between the human tissue and the first skull patch 1 and the second skull patch 2, further increasing the impact resistance of the repair area and protecting the patient.

[0048] Reference Figure 2 and Figure 3In this embodiment, the tongue 211 includes a connecting portion 2111 and a clamping portion 2112. One end of the connecting portion 2111 is fixed to the second splicing strip 21, and the other end is coaxially fixed to the clamping portion 2112. Both the connecting portion 2111 and the clamping portion 2112 are rectangular blocks. The outer diameter of the clamping portion 2112 is larger than that of the connecting portion 2111, and the clamping portion 2112 protrudes from the sidewalls of the connecting portion 2111 on all sides.

[0049] The slot 111 includes a coaxially connected limiting section 1111 and a connecting section 1112. Both limiting section 1111 and connecting section 1112 have rectangular cross-sections, with limiting section 1111 being closer to the second splicing strip 21 than connecting section 1112. One end of limiting section 1111 extends through a side of the first splicing strip 11 near the second splicing strip 21, while the other end extends away from the second splicing strip 21 and connects to connecting section 1112. The inner diameter of limiting section 1111 is smaller than the outer diameter of the engaging portion 2112 and the inner diameter of connecting section 1112. The inner diameter of connecting section 1112 is greater than or equal to the outer diameter of the engaging portion 2112. A limiting boss 5 is formed between limiting section 1111 and connecting section 1112 due to the difference in their inner diameters.

[0050] The length of the connecting section 1112 is greater than the length of the clamping portion 2112, and the length of the limiting section 1111 is less than the length of the connecting portion 2111; the tongue 211 is slidably clamped in the clamping groove 111 through the abutment between the clamping portion 2112 and the limiting boss 5. A buffer cavity 6 is formed in the connecting section 1112 on the side of the clamping portion 2112 facing away from the connecting portion 2111; the buffer cavity 6 is filled with a buffer material 7 that can be absorbed by the human body. The buffer material 7 can specifically be made of porous polylactic acid or a copolymer of polylactic acid and glycolic acid. The buffer material 7 of this type of material can have certain buffering characteristics and can slowly degrade and be absorbed by the human body, and its buffering performance and degradation rate can be adjusted by controlling the pore size and porosity. In other embodiments, the buffer material can also be filled into the pore 4.

[0051] In this way, a secure engagement is achieved between the tongue 211 and the slot 111, thereby enhancing the stability of the splicing between the first skull patch 1 and the second skull patch 2. Furthermore, after being spliced ​​together, the first skull patch 1 and the second skull patch 2 can slide relative to each other to a certain extent in the thickness direction. This sliding connection not only reduces the pressure exerted by the second skull patch 2 on the intracranial tissue when the entire first skull patch 1 is subjected to an external impact, but also provides independent cushioning when a portion of the first splicing strip 11 of the first skull patch 1 is subjected to an external impact, preventing other unaffected portions from moving away from the first splicing strip 11. Furthermore, it reduces the pressure exerted by the first skull patch 1 on the scalp when intracranial pressure is excessively high. Moreover, this sliding connection only occurs when the human tissue has not yet been fully combined with the repair system during the postoperative recovery process; when the human tissue is fully combined with the repair system, the impact strength of the repair area is improved, and the human tissue absorbs the buffer material 7 after growth and fills the buffer cavity 6 and the pore 4 between the first skull patch piece 1 and the second skull patch piece 2, thereby eliminating the sliding of the first skull patch piece 1 and the second skull patch piece 2 and improving the integrity of the two after connection.

[0052] Preferably, the tongue 211 is provided on the second splicing strip 21, and the tongue 211 located in the middle portion of the second splicing strip 21 is an integral structure. The tongue 211 located at the abutting surface of the two second splicing strips 21 is formed by connecting two halves of an integral tongue 211 from each of the two second splicing strips 21, and then splicing together to form a complete tongue 211. This arrangement ensures that adjacent second splicing strips 21 are tightly connected to each other when the tongues 211 are spliced ​​together, thereby enhancing the connection strength between the second splicing strips 21.

[0053] Reference Figure 2 and Figure 4 In this embodiment, the connecting assembly 3 includes a connecting piece 31, a first screw 32 and a second screw 33. The connecting piece 31 is made of titanium alloy and has a certain flexibility and strength; the first screw 32 and the second screw 33 are usually medical self-tapping screws, which are also made of titanium alloy. One end of the connecting piece 31 is connected to the first skull patch 1 and the second skull patch 2 through the first screw 32, and the other end is connected to the human skull through the second screw 33; and the first skull patch 1 is provided with a connecting piece groove 113 for completely accommodating the end of the connecting piece 31 away from the human skull. It should be noted that after the first screw 32 connects the first skull patch 1 and the second skull patch 2, it does not affect the relative sliding of the first skull patch 1 and the second skull patch 2.

[0054] In this way, the first skull patch 1 and the second skull patch 2 can be stably connected to the human skull using the connecting piece 31, the first screw 32, and the second screw 33, ensuring a reliable connection between the splicable skull patch system and the human skull and improving the security of the system installation. The connecting piece groove 113 can completely accommodate the end of the connecting piece 31 facing away from the human skull, preventing the protrusion of the connecting piece 31 from affecting the fit of the first skull patch 1 and the human skull, making the connection between the first skull patch 1 and the human skull tighter and smoother. The embedded repair design avoids bone grinding and reduces the risk of brain tissue damage.

[0055] The implementation principle of the embodiment is as follows: the first skull patch 1 is designed to be a structure formed by a plurality of first splicing strips 11 arranged side by side, and the second skull patch 2 is designed to be a structure formed by a plurality of second splicing strips 21 arranged side by side, and the plurality of first splicing strips 11 and the plurality of second splicing strips 21 are arranged in a mesh-like staggered manner and connected by the protruding tongue 211 and the card slot 111 to form a skull patch block as a whole, which can improve the connection strength between the first splicing strip 11 and the second splicing strip 21, avoid dislocation and looseness between each other when subjected to impact, and thus reduce the risk of collapse of the skull patch block when subjected to impact; the first skull patch 1 and the second skull patch 2 are connected to the human skull by using the connecting component 3 to realize the fixation of the system on the human skull and better protect the patient. Furthermore, after being spliced ​​together, the first and second skull patch pieces 1 and 2 can slide relative to each other to a certain extent in the thickness direction. This sliding connection not only reduces the pressure exerted by the second skull patch piece 2 on the intracranial tissue when the first skull patch piece 1 as a whole is subjected to external impact, but also provides independent cushioning when a portion of the first splicing strip 11 of the first skull patch piece 1 is subjected to external impact, preventing other unimpacted portions from moving away from the first splicing strip 11. It also reduces the pressure exerted by the first skull patch piece 1 on the scalp when intracranial pressure is excessively high. Furthermore, this sliding connection only occurs during the postoperative recovery process, when the human tissue has not yet fully integrated with the repair system. When the human tissue is fully integrated with the repair system, the impact resistance of the repair area is enhanced. As the human tissue grows, it absorbs the cushioning material 7 and fills the gap 4 between the tongue 211 and the slot 111, as well as between the first and second skull patch pieces 1 and 2, thereby eliminating sliding between the first and second skull patch pieces 1 and 2 and improving the integrity of the connection. This system not only solves the time-consuming and expensive production issues of traditional monolithic skull repair plates, but also offers advantages such as ease of operation, precise fit, reliable strength, low cost, and ease of autologous skull growth. Prefabricated skull repair plates are quickly assembled using a positioning structure, eliminating the need for manual shaping during surgery, reducing surgical time by over 40%. Furthermore, the embedded repair design avoids bone grinding, minimizing the risk of brain tissue damage; the preformed curved design reduces soft tissue irritation, resulting in a 15% lower postoperative infection rate compared to traditional titanium mesh. It is particularly suitable for repairing skull defects of various complex shapes and sizes.

[0056] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A splicable skull repair system, characterized in that: include: A first skull patch (1) comprising a plurality of first splicing strips (11) arranged side by side and abutting against each other; The second skull patch (2) is spaced apart from the first skull patch (1) in an upper and lower arrangement; the second skull patch (2) comprises a plurality of second splicing strips (21) arranged side by side and abutting each other, and the arrangement direction of the second splicing strips (21) is staggered with the arrangement direction of the first splicing strips (11); the second skull patch (2) is provided with a plurality of tongues (211) on a side array close to the first skull patch (1), and the first skull patch (1) is provided with a plurality of slots (111) on a side array close to the second skull patch (2); the second skull patch (2) is connected to the first skull patch (1) by the snap-fitting of the tongues (211) and the slots (111); A plurality of connection components (3) are arranged around the first skull patch (1) and the second skull patch (2) and are used to connect the first skull patch (1) and the second skull patch (2) to the human skull.

2. The connectable skull repair system according to claim 1, characterized in that: The first skull patch (1) is provided with a first through hole (112) penetrating the upper and lower surfaces thereof; the second skull patch (2) is provided with a second through hole (212) penetrating the upper and lower surfaces thereof, and the first through hole (112) and the second through hole (212) are coaxially connected.

3. The connectable skull repair system according to claim 2, characterized in that: After the protruding tongue (211) is engaged with the slot (111), a gap (4) is formed between the first skull patch (1) and the second skull patch (2), and the gap (4) is connected to the first through hole (112) and the second through hole (212).

4. The connectable skull repair system according to claim 3, characterized in that: The tongue (211) comprises a connecting portion (2111) and a clamping portion (2112), one end of the connecting portion (2111) is connected to the second splicing strip (21), and the other end is coaxially connected to the clamping portion (2112), and the clamping portion (2112) protrudes from the side wall of the connecting portion (2111); the clamping slot (111) comprises a coaxially connected limiting section (1111) and a connecting section (1112), one end of the limiting section (1111) passes through the first splicing strip (11) and is close to the connecting section. One side of the second splicing strip (21) and the other end thereof are connected to the connecting section (1112); the inner diameter of the limiting section (1111) is smaller than the diameter of the clamping portion (2112), and the inner diameter of the connecting section (1112) is greater than or equal to the diameter of the clamping portion (2112); a limiting boss (5) is formed between the limiting section (1111) and the connecting section (1112), and the tongue (211) is slidably clamped in the clamping groove (111) through the abutment between the clamping portion (2112) and the limiting boss (5).

5. The connectable skull repair system according to claim 4, characterized in that: The length of the connecting section (1112) is greater than the length of the clamping portion (2112), and the length of the limiting section (1111) is less than the length of the connecting portion (2111); a buffer cavity (6) is formed in the connecting section (1112) on a side of the clamping portion (2112) facing away from the connecting portion (2111); and the buffer cavity (6) is filled with a buffer material (7) that can be absorbed by the human body.

6. The connectable skull repair system according to claim 5, characterized in that: The buffer material (7) is porous polylactic acid or a copolymer of polylactic acid and glycolic acid.

7. The connectable skull repair system according to claim 1, characterized in that: The connecting assembly (3) comprises a connecting piece (31), a first screw (32) and a second screw (33); one end of the connecting piece (31) is connected to the first skull patch (1) and the second skull patch (2) via the first screw (32), and the other end is connected to the human skull via the second screw (33).

8. The connectable skull repair system according to claim 7, characterized in that: The first skull repair piece (1) is provided with a connecting piece groove (113) for completely accommodating the end of the connecting piece (31) facing away from the human skull.

9. The connectable skull repair system according to claim 1, characterized in that: The thickness and curvature of the overall structure formed by splicing the first skull repair piece (1) and the second skull repair piece (2) are consistent with the thickness and curvature of the skull that needs to be repaired in the human body.

10. The connectable skull repair system according to claim 1, characterized in that: The slot (111) is provided on the first splicing strip (11); the tongue (211) is provided on the second splicing strip (21), and the tongue (211) located in the middle portion of the second splicing strip (21) is an integral structure, and the tongue (211) located at the abutting surface of the two second splicing strips (21) is formed by splicing together a half structure of the integral tongue (211) of each of the two second splicing strips (21) to form a complete tongue (211).

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