CN113384380A

CN113384380A - Skull prosthesis and manufacturing method thereof

Info

Publication number: CN113384380A
Application number: CN202110689702.5A
Authority: CN
Inventors: 何创彬
Original assignee: Shenzhen Excellent Technology LLC
Current assignee: Shenzhen Excellent Technology LLC
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-09-14
Anticipated expiration: 2041-06-22
Also published as: CN113384380B

Abstract

The invention relates to the technical field of biomedical engineering, in particular to a skull prosthesis and a manufacturing method thereof, wherein the skull prosthesis comprises a first repairing sheet, a second repairing sheet and a covered edge, and the first repairing sheet is laid on the surface of a skull and is blocked at a to-be-repaired mouth; the second repairing sheet is arranged in the to-be-repaired mouth of the skull, and the first repairing sheet is connected with the second repairing sheet through a plurality of supporting pieces; the edge wrapping ring is arranged on the circumferential surfaces of the first repairing sheet and the second repairing sheet; the skull prosthesis provided by the invention adopts a double-layer structure, is beneficial to the growth and healing of the repaired soft tissue at the wound, and the first repairing sheet and the second repairing sheet are annularly provided with the wrapping edges, so that the edge of the prosthesis is soft and is beneficial to the healing of the wound.

Description

Skull prosthesis and manufacturing method thereof

Technical Field

The invention relates to the technical field of biomedical engineering, in particular to a skull prosthesis and a manufacturing method thereof.

Background

Although the repair method is more, the traditional titanium mesh is still the most common method after being implanted by manual molding, the method has the biggest defects that the edge of the titanium mesh is not easy to trim and follow the shape of a wound, cannot be consistent with the curvature of the edge of a bone window, has poor inosculation with the wound to be repaired, and can cause the looseness of a postoperative prosthesis due to the infirm fixation.

Disclosure of Invention

The invention aims to provide a skull prosthesis and a manufacturing method of the skull prosthesis, which aim to solve the problems that the edge of a manually molded implanted prosthesis in the prior art cannot be consistent with the edge curvature of a bone window, and the existing titanium mesh prosthesis is of a single-layer porous structure and is not beneficial to the growth and healing of soft tissues.

In order to achieve the purpose, the invention adopts the following technical scheme:

a cranial prosthesis, comprising:

the first repairing sheet is configured to be paved on the surface of a skull and to be plugged in a to-be-repaired opening;

the second repairing sheet is connected to one side, far away from the opening to be repaired, of the first repairing sheet through a plurality of supporting pieces;

and the edge covering is annularly arranged on the circumferential surfaces of the first repairing sheet and the second repairing sheet.

Preferably, the cross section of the edge cover is circular.

Preferably, the first repairing sheet comprises a mounting part and a blocking part which are mutually connected, the mounting part is paved on the surface of a skull, the blocking part is embedded in the opening to be repaired, the edge covering ring is arranged on the peripheral surface of the mounting part, and the thickness of the blocking part is larger than that of the mounting part.

Preferably, the mounting portion has a plurality of mounting holes.

Preferably, the blocking portion is provided with a plurality of first suspension holes, the second repair piece is provided with a plurality of second suspension holes coaxial with the first suspension holes and arranged in one-to-one correspondence with the first suspension holes, and the first suspension holes and the second suspension holes are used for suspending suspension wires.

Preferably, the first repair sheet and the second repair sheet are both of a mesh structure.

Preferably, the first repair sheet and the second repair sheet are made of titanium alloy.

A method for manufacturing a skull prosthesis is characterized by comprising the following steps:

establishing a skull model through the data of skull scanning;

modeling the skull prosthesis according to the to-be-repaired mouth of the skull model, carrying out mesh structure treatment on the first repair sheet and the second repair sheet, optimizing the edges of the first repair sheet and the second repair sheet, and arranging the covered edges on the peripheral surfaces of the first repair sheet and the second repair sheet;

and manufacturing the skull restoration by 3D printing according to the model.

Preferably, in the step of subjecting the first repair sheet and the second repair sheet to the net structure treatment, the net pore sizes of the first repair sheet and the second repair sheet are further adjusted.

Preferably, the cranial prosthesis modeling step further comprises adjusting the height of the support member to adjust the spacing of the first repair patch and the second repair patch.

The invention has the beneficial effects that: the skull prosthesis provided by the invention adopts a double-layer structure, is beneficial to the growth and healing of the repaired soft tissue at the wound, and the peripheral surfaces of the first repair sheet and the second repair sheet are provided with the wrapping edges, so that the skull prosthesis can be better attached to the to-be-repaired wound of the skull, and has good inosculation with the repaired wound.

The invention also provides a manufacturing method of the skull restoration, and the manufactured skull restoration has good integrity and reasonable structural strength, so that the matching degree of the skull restoration is higher.

Drawings

FIG. 1 is a schematic view of a mounting structure of a cranial prosthesis according to the present invention;

FIG. 2 is a structural view of a cranial prosthesis of the present invention;

FIG. 3 is a structural view of a covering edge in the cranial prosthesis of the present invention.

In the figure:

1. a first repair patch; 11. an installation part; 12. a plugging section;

2. a second repair patch;

3. a support member;

4. and (6) edge covering.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-3, the present embodiment provides a skull prosthesis, which comprises a first repair sheet 1, a second repair sheet 2, and a covered edge 4, wherein the first repair sheet 1 is configured to be capable of being laid on the surface of a skull and to be sealed at a to-be-repaired mouth; the second repairing sheet 2 is connected to one side, far away from the opening to be repaired, of the first repairing sheet through a plurality of supporting pieces 3; the edge-covering 4 is arranged around the circumferential surfaces of the first repairing sheet 1 and the second repairing sheet.

The skull prosthesis provided by the embodiment adopts a double-layer structure, is beneficial to the growth and healing of the soft tissue repaired at the wound, the first repairing sheet 1 and the second repairing sheet 2 are respectively provided with the wrapping edges 4, can be better attached to the position of the skull to be repaired, and have good inosculation, and the first repairing sheet 1, the second repairing sheet 2, the supporting piece 3 and the wrapping edges 4 in the embodiment are integrally formed, so that the skull prosthesis has better integrity and more stable structure.

As a preferred embodiment of the embodiment, the skull prosthesis can also be provided with a multi-layer skull prosthesis structure with three layers, four layers or five layers and the like according to the wounds to be repaired and the physical condition of the patient.

Specifically, the section of the wrapping edge 4 is circular, the surface is smooth, the edges of the first repairing sheet 1 and the second repairing sheet 2 are smooth and have no edges and corners, the matching performance with the repaired wound is good, and the soft tissue growth recovery is facilitated.

Specifically, first restoration piece 1 includes interconnect's installation department 11 and shutoff portion 12, installation department 11 is laid on the skull surface, shutoff portion 12 inlays and locates the skull and treats the restoration mouth, a plurality of support piece 3 are connected in shutoff portion 12 in order to restore piece 1 and second and restore piece 2 to be connected, 4 rings of borduring are established on the global of installation department 11, the thickness of shutoff portion 12 is greater than the thickness of installation department 11, installation department 11 is unanimous with the edge curvature of bone window that treats to restore, do benefit to the growth of soft tissue, shutoff portion 12 structural strength is higher.

Furthermore, in the present embodiment, a plurality of mounting holes are formed in the mounting portion 11, and a plurality of fixing members are correspondingly inserted into the mounting holes and connected to the skull bone to fix the first repairing sheet 1, in other embodiments, the first repairing sheet 1 may also be fixed to the to-be-repaired opening of the skull bone by means of suturing.

Furthermore, the plugging part 12 is provided with a plurality of first hanging holes, the second repairing piece 2 is provided with a plurality of second hanging holes which are coaxial with the first hanging holes and are arranged in one-to-one correspondence, the first hanging holes and the second hanging holes are used for hanging suspension wires, needles and wires penetrate through dura mater and then are knotted in holes on the repairing body, the brain is hung well, and the healing of the brain and muscles is facilitated.

Specifically, the first repairing piece 1 and the second repairing piece 2 are both of a mesh structure, the first repairing piece 1 and the second repairing piece 2 are both made of titanium alloy, and the multilayer three-dimensional mesh-shaped repairing body can meet the requirement on mechanical property and also ensure the stability of the whole mesh structure. The double-layer three-dimensional net-shaped design can make the quality of the restoration lighter, is beneficial to the growth and the climbing of tissues and ensures the stable combination between the restoration and the soft tissues, meanwhile, the multi-layer three-dimensional net-shaped structure is beneficial to the uniform growth of the soft tissues and the uniform release of heat, overcomes the temperature difference discomfort caused by the traditional titanium net, the sizes of the pores of the net-shaped structures on the first restoration piece 1 and the second restoration piece 2 can be set, and the suspension wires can be arranged through the arrangement of the installation pores, so that the first suspension hole and the second suspension hole do not need to be additionally arranged, and the integral strength of the first restoration piece 1 and the second restoration piece 2 is improved.

The embodiment also provides a manufacturing method of the skull prosthesis, which comprises the following steps:

establishing a skull model through the data of skull scanning;

modeling the skull prosthesis according to the repair port of the skull model, carrying out mesh structure treatment on the first repair sheet 1 and the second repair sheet 2, optimizing the first repair sheet 1 and the second repair edge, trimming the mounting groove of the edge, arranging the edge 4 in the mounting groove, compared with the prior art that the skull prosthesis model is installed at a to-be-repaired position of a skull scanning model, the skull prosthesis model is manufactured through 3D printing after installation is matched without errors, and the 3D printing medical digital manufacturing process enables each examination link to generate corresponding data records, so that wound data of a patient becomes accurate, diagnosis and treatment judgment of a doctor can be more in place, the skull prosthesis model is personalized and customized through 3D printing, the reduction degree is higher, and individual differences can be taken care of as much as possible according to different conditions of each patient.

Specifically, the mesh pore sizes of the first repair sheet 1 and the second repair sheet 2 can be adjusted, and the mesh pore sizes are adjusted and matched according to the skull density of a patient and the trauma degree of a specific wound.

Specifically, the spacing between the first and

second repair plates

1 and 2 can be adjusted by modifying the height of the support 3, as well as according to the thickness of the skull at the wound site.

The skull prosthesis manufacturing method provided by the embodiment has the advantages that the manufactured skull prosthesis has good integrity and reasonable structural strength, the sizes of the mesh pores of the first repairing sheet 1 and the second repairing sheet 2 and the distance between the first repairing sheet 1 and the second repairing sheet 2 can be adjusted, the degree of freedom of adjustment is good, and the matching degree of the skull prosthesis is higher.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A cranial prosthesis, comprising:

the first restoration sheet (1), the first restoration sheet (1) is configured to be capable of being laid on the surface of the skull and blocking the opening to be restored;

the second repairing sheet (2) is connected to one side, far away from the opening to be repaired, of the first repairing sheet through a plurality of supporting pieces (3);

and the edge (4) is annularly arranged on the circumferential surfaces of the first repairing sheet (1) and the second repairing sheet.

2. Cranial prosthesis according to claim 1, characterized in that the tipping (4) is circular in cross-section.

3. The cranial prosthesis according to claim 1, wherein the first repair patch (1) comprises a mounting part (11) and a blocking part (12) which are connected with each other, the mounting part (11) is laid on the surface of the skull, the blocking part (12) is embedded in the opening to be repaired, the wrapping edge (4) is annularly arranged on the peripheral surface of the mounting part (11), and the thickness of the blocking part (12) is larger than that of the mounting part (11).

4. Cranial prosthesis according to claim 3, characterized in that the mounting part (11) is provided with a plurality of mounting holes.

5. The cranial prosthesis according to claim 3, wherein the blocking part (12) is provided with a plurality of first hanging holes, the second repair sheet (2) is provided with a plurality of second hanging holes coaxial with the first hanging holes and arranged in one-to-one correspondence, and the first hanging holes and the second hanging holes are used for hanging wires.

6. Cranial prosthesis according to claim 1, characterized in that the first repair patch (1) and the second repair patch (2) are both mesh structures.

7. Cranial prosthesis according to claim 6, characterized in that the material of both the first patch (1) and the second patch (2) is a titanium alloy.

8. A method of producing a cranial prosthesis according to any of claims 1 to 7, comprising:

establishing a skull model through the data of skull scanning;

modeling the skull prosthesis according to the to-be-repaired mouth of the skull model, performing mesh structure treatment on the first repair sheet (1) and the second repair sheet (2) and optimizing the edges of the first repair sheet (1) and the second repair sheet (2), and arranging the covered edges (4) on the peripheral surfaces of the first repair sheet (1) and the second repair sheet;

and manufacturing the skull restoration by 3D printing according to the model.

9. The method of producing a cranial prosthesis according to claim 8, wherein the mesh size of said first repair patch (1) and said second repair patch (2) is further adjusted in the step of subjecting said first repair patch (1) and said second repair patch (2) to a mesh-like structure treatment.

10. The method of producing a cranial prosthesis according to claim 8, wherein said cranial prosthesis modeling step further comprises adjusting the height of said support member (3) to adjust the spacing of said first patch (1) and said second patch (2).