CN116350400A - A skull mesh - Google Patents

Abstract

The present application relates to a skull mesh plate, which includes a mesh plate main body, the mesh plate body includes a main body and a connecting portion abutting against the incomplete surface of the skull, and an inductive channel extending toward the main body is opened on the outer side wall of the connecting portion. In this application, during cranioplasty, the main body of the mesh plate is covered on the skull defect, so that the connecting part abuts against the inner wall of the skull defect, and the induction channel induces the skull tissue on the defect surface to grow toward the direction close to the main body and extend It fuses with the human skull in the induction channel, improves the efficiency of skull repair, and effectively improves the problem of long time-consuming and low repair efficiency in the process of skull mesh repairing the skull.

Description

A skull mesh

technical field

The present application relates to the field of skull repair technology, in particular to a skull mesh plate.

Background technique

The skull is the protective barrier of the brain, and only when the skull is intact can the intracranial tissues function and work normally. Skull damage occurs when the head is impacted or damaged by an external force, such as a penetrating brain injury in a car accident or a head impact caused by a fall from a height.

Skull mesh refers to a product used to repair skull defects. During skull defect surgery, the skull mesh plate is placed on the skull defect, and then holes are drilled around the skull mesh plate, and then the skull mesh plate and the human skull are fixed together with screws.

When the skull mesh is used to repair the skull, the fusion of the skull mesh and the human skull tissue is slow, which makes the growth of the defective skull take a long time and the repair efficiency is low.

Contents of the invention

In order to improve the problem of long time-consuming and low repair efficiency in the process of repairing the skull with the existing skull mesh, the present application provides a skull mesh.

A skull net plate provided by the application adopts the following technical scheme:

A skull mesh plate, comprising a mesh plate body, the mesh plate body includes a main body and a connecting portion abutting against the incomplete surface of the skull, and an inductive channel extending toward the main body is opened on the outer side wall of the connecting portion.

By adopting the above technical scheme, during cranioplasty, the main body of the mesh plate is covered on the skull defect, so that the connecting part abuts against the inner wall of the skull defect, and the induction channel induces the skull tissue on the defect surface to grow toward the direction close to the main body. And extend to the induction channel to fuse with the human skull, improve the efficiency of skull repair, and effectively improve the problem of long time-consuming and low repair efficiency in the process of skull mesh repairing the skull.

Optionally, there are multiple inductive channels, and a first supporting framework is spaced between two adjacent inductive channels.

By adopting the above-mentioned technical solution, multiple induction channels can induce the growth of skull tissue at the same time, which can improve the induction efficiency, further shorten the skull repair time, and improve the repair efficiency of the skull mesh plate.

Optionally, the first supporting frame is further provided with a plurality of barbs placed in the inducing channel.

By adopting the above-mentioned technical solution, the barbs can further guide the skull cells to extend into the induction channel toward the direction close to the barbs, promote the differentiation of the skull cells, and further improve the ability of the main body of the mesh plate to repair skull defects.

Optionally, there is an osteoinductive material layer inside the inductive channel.

By adopting the above technical scheme, the bone-inductive material layer is used to induce the skull tissue to extend into the induction channel, thereby improving the growth efficiency of the skull tissue and further shortening the repair time of the incomplete skull.

Optionally, the width of each induction channel is 0.2mm-1.6mm.

By adopting the above technical solution, when the width of the induction channel is maintained between 0.2 mm and 1.6 mm, sufficient mechanical strength of the main body of the stencil can be ensured while ensuring excellent induction performance.

Optionally, the connection part further includes a first solid layer that touches the scalp and a second solid layer that touches the dura mater, and the first solid layer is fixed to the skull through a degradable and non-biotoxic connection structure.

By adopting the above technical scheme, by setting a degradable and non-biotoxic connection structure, it can realize self-degradation after the skull repair is completed, without the need for secondary operation to remove, and at the same time, the skull tissue can be directly connected with the first solid layer, which is beneficial to the mesh plate. Fusion of subject and skull.

Optionally, the main body part has a first side wall against the inner layer of human scalp and a second side wall against the dura mater, and a plurality of growth channels for scalp tissue growth are opened inwardly on the first side wall.

By adopting the above technical solution, the growth channel can induce the growth of scalp tissue, further improve the induction performance of the main body of the mesh plate, and increase the tightness of the connection between the main body of the mesh plate and the scalp tissue by increasing the tightness of the connection between the main body and the scalp tissue.

Optionally, the main body of the screen is manufactured by 3D printing.

By adopting the above-mentioned technical solution, the 3D model of the designed composite structure can be directly input into the 3D printer, and it can be produced by simply setting the process parameters, which is superior to the traditional bone plate production process in terms of accuracy, processing efficiency, and material utilization.

Optionally, the preparation material of the mesh body includes osteoinductive materials.

By adopting the above-mentioned technical scheme, the bone-inductive material is used to prepare the main body of the mesh plate to increase the inductive function of the main body of the mesh plate, accelerate the differentiation and growth of skull tissue, and further improve the efficiency of skull repair.

Optionally, the osteoinductive material includes basic calcium phosphate, hydroxyapatite and tricalcium phosphate.

By adopting the above technical scheme, basic calcium phosphate and tricalcium phosphate are the main inorganic components of bone tissue, which have excellent osteoconductivity and osteoinductivity; hydroxyapatite is a bone substitute material, which also has osteoinductivity. The compounding of materials can induce the growth of skull tissue at the skull defect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. By setting the induction channel to induce the skull tissue on the incomplete surface to grow towards the main body, the efficiency of skull repair can be improved, and the problem of long time-consuming and low repair efficiency in the process of skull mesh repairing the skull can be effectively improved;

2. By setting an osteoinductive material layer in the induction channel, the induction efficiency of the main body of the mesh plate can be improved to further shorten the repair time of the incomplete skull;

3. By setting up a degradable and non-biotoxic connection structure, it can realize self-degradation after the skull repair is completed, without the need for secondary surgery to remove, so that the skull tissue and the connection part can be directly connected, which is conducive to the fusion of the main body of the mesh plate and the skull.

Description of drawings

Fig. 1 is the overall structure schematic diagram of embodiment 1 of the present application;

Fig. 2 is a partial enlarged view of part A in Fig. 1;

Fig. 3 is a schematic diagram of the partial structure of the supporting block highlighted in Embodiment 1 of the present application;

Figure 4 is a schematic diagram of the overall structure of Embodiment 2 of the present application;

Figure 5 is a schematic diagram of the overall structure of Embodiment 4 of the present application;

FIG. 6 is a partially enlarged view of part B in FIG. 5 .

Explanation of reference numerals: 1. Main body of the screen plate; 11. Main body; 111. Air vent; 12. Connecting part; 121. First entity layer; 1211. Installation groove; 122. Second entity layer; 123. First support Skeleton; 2. Induction channel; 3. Connecting piece; 4. Fastening screw; 5. Support block; 6. Connecting piece; 7. Locking screw; 8. Barb; 9. Growth channel; skeleton.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-6.

The embodiment of the present application discloses a cranial net plate.

Example 1

Referring to Fig. 1 and Fig. 2, a cranial mesh plate is used for repairing an incomplete skull, which includes a mesh plate main body 1, and the mesh plate main body 1 is covered on the incomplete skull. The screen main body 1 includes a main body portion 11 and a connecting portion 12, the connecting portion 12 is arranged on the outer edge of the main body portion 11, the connecting portion 12 is integrally formed with the main body portion 11, and the outer side wall of the connecting portion 12 is provided with a guide extending toward the main body portion 11. channel 2.

When repairing the incomplete skull, the main body 1 of the mesh plate is covered on the incomplete skull, so that the connecting part 12 is in contact with the incomplete skull surface, and the induction channel 2 can induce the skull tissue on the incomplete skull surface to grow towards the direction close to the main body 11 Extending into the induction channel 2, the skull repair efficiency is improved, the skull repair time is shortened, and the problem of long time-consuming and low repair efficiency in the skull repair process of the mesh plate main body 1 is effectively improved.

Referring to Fig. 2, in order to ensure the inducing effect of the main body 1 of the screen, preferably, there are multiple inducing channels 2, and the plurality of inducing channels 2 are distributed along the circumferential direction of the main body 11 at intervals, between two adjacent inducing channels 2 The first supporting frames 123 are evenly spaced. While ensuring the inductive effect, the main body 1 of the screen is supported to ensure the excellent mechanical properties of the main body 1 of the screen. Specifically, the width of each induction channel 2 is 0.2mm-1.6mm.

In order to further improve the inductive effect of the mesh plate main body 1, there is an osteoinductive material layer (not shown in the figure) in the inductive channel 2, and the inductive ability to the skull tissue is improved through the osteoinductive material layer in the inductive channel 2, thereby improving Cranial repair efficiency. Further, the preparation material of the mesh main body 1 can be selected to be polyether ether ketone and osteoinductive materials, polyetheretherketone is the material closest to human bones, and the induction effect of the mesh main body 1 can be improved through osteoinductive materials .

Osteoinductive materials include bioactive ceramics, specifically, alkaline calcium phosphate, hydroxyapatite, and tricalcium phosphate in this embodiment. Basic calcium phosphate and tricalcium phosphate are the main inorganic components of bone tissue, which have excellent osteoconductivity and osteoinductivity; hydroxyapatite is a bone substitute material, which also has osteoinductivity, and the composite of various materials can induce skull Growth of skull tissue at the defect.

Referring to FIG. 1 , air holes 111 distributed at intervals are opened on the main body portion 11 . The connection part 12 includes a first solid layer 121 against the scalp and a second solid layer 122 against the dura mater, and the first solid layer 121 is fixed with the skull through the connection structure.

The connection structure is made of degradable and non-biotoxic materials, such as magnesium alloy or polymer materials. Magnesium alloy has the advantages of in vivo degradability, excellent mechanical properties, good biological safety, and good impurity control level. When the bone tissue in the skull heals, the magnesium alloy can eventually be replaced by natural tissue, reducing the surgical cost and patient pain caused by the secondary surgery to remove the connecting structure.

Polymer materials have good biocompatibility and mechanical compatibility with the human body, and are close to human bone in terms of structure, elastic modulus, porosity and density.

After the cranium is repaired, the connection structure can be self-degraded and does not need to be taken out by a second operation. At the same time, after the degradation of the connection structure is completed, the skull is connected to the first solid layer 121, which is beneficial to the fusion of the first solid layer 121 and the skull.

Referring to Fig. 1, the connecting structure includes connecting piece 3 and fastening screw 4, and connecting piece 3 is provided with multiple, and fastening screw 4 is provided with multiple groups, and each group is multiple, and each group of fastening screw 4 corresponds to one connecting piece 3 setting , and each set of multiple fastening screws 4 is distributed on the connecting piece 3 at intervals. Specifically, at least one fastening screw 4 is screwed to the skull after passing through the connecting portion 12 , and at least one fastening screw 4 is screwed to the skull after passing through the connecting sheet 3 and the first solid layer 121 in turn.

Referring to Fig. 1 and Fig. 3, in order to further reduce the foreign body sensation of the mesh panel main body 1 in the human skull, preferably, the upper surface of the first solid layer 121 is provided with an installation groove 1211 inward for the corresponding connecting piece 3 to be placed.

2 and 3, a plurality of support blocks 5 are fixed between the first solid layer 121 and the second solid layer 122, and the plurality of support blocks 5 correspond to the plurality of installation grooves 1211 one by one, and each support block 5 are all placed under the corresponding installation groove 1211 to support the connecting piece 3 and ensure the fastening effect of the fastening screw 4.

The screen main body 1 in this application is prepared by 3D printing, specifically, the screen main body 1 is printed by a fused deposition (FDM) 3D printer.

The implementation principle of Embodiment 1 is: when performing skull surgery, cover the main body 1 of the mesh plate on the incomplete part of the skull, and then take a plurality of connecting pieces 3, so that each connecting piece 3 is inserted into the corresponding installation groove 1211, tighten multiple fastening screws 4 on each connecting piece 3 with a fastening tool, so that multiple fastening screws 4 can be nailed into the skull, and fix the main body 1 of the mesh plate.

Example 2

Referring to Fig. 4, the difference between this embodiment and Embodiment 1 is that the connecting structure of this embodiment includes a plurality of connecting straps 6 and a plurality of locking screws 7, and the plurality of connecting straps 6 are all along the first entity The layer 121 extends outward, and the plurality of locking screws 7 correspond to the plurality of connecting straps 6 one by one, and the plurality of locking screws 7 can fix the first solid layer 121 to the human skull through the corresponding plurality of connecting straps 6 . In this embodiment, there are 6 connection straps 6 , and the 6 connection straps 6 are distributed along the outer wall of the screen main body 1 at intervals.

When fixing the main body 1 of the mesh plate, a plurality of fastening screws 4 are threaded through the connecting strap 6 and connected to the skull with a fastening tool, so as to fix the main body 1 of the mesh plate.

Example 3

The difference between this embodiment and the above-mentioned embodiments is that: the first supporting frame 123 in this embodiment is also provided with a plurality of barbs 8, and the plurality of barbs 8 are all placed in the induction channel 2 (in the figure not shown), multiple barbs 8 are conducive to the accumulation of skull tissue, further improving the efficiency of skull repair.

Example 4

Referring to Fig. 5 and Fig. 6, the difference between this embodiment and the above-mentioned embodiments is that: the main body part 11 in this embodiment has a first side wall and a second side wall away from the first side wall, the first side The wall is in contact with the inner layer of human hair, the second side wall is in contact with the dura mater of the human body, and the first side wall of the main body 11 is opened inwardly with a plurality of growth channels 9 for the growth of scalp tissue. A second support frame 91 is provided between two adjacent growth channels 9, and the second support frame 91 is used to separate the growth channels 9, while increasing the inductive performance of the main body of the mesh panel 1, and effectively ensuring the mechanical properties of the main body of the mesh panel. Preferably, the width of each growth channel 9 is between 0.2mm-1.6mm.

During the process of repairing the skull with the mesh plate body 1 , the growth channel 9 can induce the growth of scalp tissue, further increasing the inducing effect of the mesh plate body 1 , and at the same time increasing the tightness of the connection between the main body 11 and the scalp tissue.

In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims (10)

1. The utility model provides a skull otter board, includes otter board main part (1), its characterized in that, otter board main part (1) include main part (11) and butt skull incomplete surface's connecting portion (12), connecting portion (12) lateral wall is seted up to main part (11) extension's induction channel (2).

2. A skull mesh plate according to claim 1, characterized in that: the number of the induction channels (2) is multiple, and a first supporting framework (123) is arranged between every two adjacent induction channels (2) at intervals.

3. A skull mesh plate according to claim 2, characterized in that: the first supporting framework (123) is also provided with a plurality of barbs (8) arranged in the induction channel (2).

4. A skull mesh plate according to claim 1, characterized in that: the induction channel (2) is internally provided with an osteoinductive material layer.

5. A skull mesh plate according to claim 1, characterized in that: the width of each induction channel (2) is 0.2mm-1.6mm.

6. A skull mesh plate according to claim 1, characterized in that: the connecting part (12) further comprises a first entity layer (121) which is abutted against the scalp and a second entity layer (122) which is abutted against the dura mater, and the first entity layer (121) is fixed with the skull through a degradable and non-biotoxic connecting structure.

7. A skull mesh plate according to claim 1, characterized in that: the main body part (11) is provided with a first side wall which is abutted against the inner layer of the scalp of the human body and a second side wall which is abutted against the dura mater, and a plurality of growth channels (9) for growing scalp tissues are formed in the first side wall.

8. A skull mesh plate according to claim 1, characterized in that: the screen body (1) is manufactured by adopting a 3D printing mode.

9. A skull mesh plate according to any of claims 4 to 8, wherein: the preparation material of the mesh plate main body (1) comprises an osteoinductive material.

10. A skull mesh plate according to claim 9, characterized in that: the osteoinductive material includes alkaline calcium phosphate, hydroxyapatite, and tricalcium phosphate.

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