CN105287054A - Honeycomb-like skeleton prosthesis stereo structure and application thereof - Google Patents

Abstract

The invention discloses a honeycomb-like skeleton prosthesis stereo structure and application thereof. According to the structure, repetitive stereo structure bodies are formed by connecting the ends of a plurality of rod-like bodies, and each repetitive stereo structure body is in the spatial shape composed of two pentagonal dodecahedrons and six tetrakaidecahedrons. The stereo structure is generated through the 3D printed rod-like bodies and is high in mechanical property, sufficient space is reserved between the rod-like bodies for growth of bone tissue, blood vessels can penetrate smoothly, and the stereo structure can be used for producing any skeleton prosthesis for limb salvage treatment.

Description

The cellular bone prosthesis stereochemical structure of one kind and application thereof

Technical field

The present invention relates to material engineering and 3D printing field, relate in particular to the cellular bone prosthesis stereochemical structure of a kind and application thereof.

Background technology

Existing bone-imitation tissue supporting structure many employings XYZ orthogonal formula, radial, the structures such as bionic type.Wherein, XYZ cribbing version is the simplest, and mechanical property is also many to be accepted by medical personnel, and therefore, XYZ structure is the most conventional.But this version is more single, differs comparatively far away with true skeletal structure, be unfavorable for osseous tissue growth in the bracket, and mechanical property is poor compared with other several structures.Similarly, spoke structure is also relevant to true skeleton microstructure comparatively far away, is unfavorable for the growth of osseous tissue.In addition, although bionic type designs structure and true skeleton is close, its porosity uncontrollable.The porosity of supporting structure evaluates a kind of important indicator of supporting structure.

Summary of the invention

Goal of the invention: the object of this invention is to provide and a kind ofly possess outstanding mechanical property and provide sufficient clearance for the cellular bone prosthesis stereochemical structure of class of bone growth, a further object of the invention is to provide this stereochemical structure and is preparing the application on bone prosthesis.

Technical scheme: in order to realize foregoing invention object, the cellular bone prosthesis stereochemical structure of a kind of the present invention, be connected to form the stereochemical structure of repetition by some clava ends, its spatial form of the stereochemical structure of each repetition is made up of 2 pyritohedrons and 6 tetrakaidecahedrons.

Any one summit is connected by three or four clavas.

Described pyritohedron is made up of 12 identical non-equilateral pentagons.

The described tetrakaidecahedron contains 2 hexagons and 10 pentagons, and 2 hexagons are positioned at opposite face and are parallel to each other.

Described non-equilateral pentagon contains the long limit a minor face b identical with four, and the length relation of long limit a and minor face b is the hexagon of the described tetrakaidecahedron comprises two parallel isometric long limit c, and the minor face d that four are isometric, and the pentagon of the tetrakaidecahedron comprises two classes: a class contain long limit c and, another kind of containing minor face d.

Hexagonal long limit c is mutually vertical for the described tetrakaidecahedron 2.

The described tetrakaidecahedron has 32 limits, and wherein 4 long limit c length are identical with long limit a, and 16 side length are article 12, the length of side is article 4, side length is

Stereochemical structure of the present invention prints clava by 3D and generates, and its mechanical property is strong, remains sufficient space for bone growth, blood vessel being passed through, utilizing this structure to can be used for producing any bone prosthesis for carrying out limb salvage treatment between clava.

Accompanying drawing explanation

Fig. 1 is the structural representation of stereochemical structure of the present invention;

Fig. 2 is the structural representation of pyritohedron in stereoscopic mechanism;

Fig. 3 is the structural representation of the tetrakaidecahedron in stereoscopic mechanism;

Fig. 4 is the upward view of Fig. 3;

Fig. 5 is the front view of the present invention's repetitive;

Fig. 6 is the rearview of Fig. 5;

Fig. 7 is the left view of Fig. 5;

Fig. 8 is the right view of Fig. 5;

Fig. 9 is the upward view of Fig. 5;

Figure 10 is the top view of Fig. 5;

Figure 11 is the schematic perspective view of repetitive shown in Fig. 5 to Figure 10;

Figure 12 is the product structure schematic diagram that stereochemical structure of the present invention is applied in humerus replacement.

Detailed description of the invention

Below in conjunction with detailed description of the invention, the present invention is further described.

As shown in Figure 1 to 11, the cellular bone prosthesis stereochemical structure of a kind, is connected to form the stereochemical structure of repetition by some clava ends, its spatial form of the stereochemical structure of each repetition is made up of 2 pyritohedrons and 6 tetrakaidecahedrons.

Any one summit is connected by three or four clavas.Described pyritohedron is made up of 12 identical non-equilateral pentagons.

The described tetrakaidecahedron contains 2 hexagons and 10 pentagons, and 2 hexagons are positioned at opposite face and are parallel to each other.Described non-equilateral pentagon contains the long limit a minor face b identical with four, and the length relation of long limit a and minor face b is the hexagon of the described tetrakaidecahedron comprises two parallel isometric long limit c, and the minor face d that four are isometric, and the pentagon of the tetrakaidecahedron comprises two classes: a class contain long limit c and, another kind of containing minor face d.

Hexagonal long limit c is mutually vertical for the described tetrakaidecahedron 2.The described tetrakaidecahedron has 32 limits, and wherein 4 long limit c length are identical with long limit a, and 16 side length are article 12, the length of side is article 4, side length is

As shown in figure 12, above-mentioned stereochemical structure is for the production of when preparing bone prosthesis, utilize 3D printing technique to carry out regeneration according to patient's bone situation of blocking to print, this product is used for humerus amputation, and the shaft that the two ends of honeycomb texture are provided with for inserting medullary cavity is fixed.Blade plate also can be set up in the basis of this structure.

The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (8)

1. the cellular bone prosthesis stereochemical structure of a kind, is characterized in that: this structure is connected to form the stereochemical structure of repetition by some clava ends, and its spatial form of the stereochemical structure of each repetition is made up of 2 pyritohedrons and 6 tetrakaidecahedrons.

2. the cellular bone prosthesis stereochemical structure of a kind according to claim 1, is characterized in that: any one summit is connected by three or four clavas.

3. the cellular bone prosthesis stereochemical structure of a kind according to claim 1, is characterized in that: described pyritohedron is made up of 12 identical non-equilateral pentagons.

4. the cellular bone prosthesis stereochemical structure of a kind according to claim 3, is characterized in that: the described tetrakaidecahedron contains 2 hexagons and 10 pentagons, and 2 hexagons are positioned at opposite face and are parallel to each other.

5. the cellular bone prosthesis stereochemical structure of a kind according to claim 4, is characterized in that: described non-equilateral pentagon contains the long limit a minor face b identical with four, and the length relation of long limit a and minor face b is $b=\sqrt{21}\×a/6;$

The hexagon of the described tetrakaidecahedron comprises two parallel isometric long limit c, and the minor face d that four are isometric, and the pentagon of the tetrakaidecahedron comprises two classes: a class contain long limit c and, another kind of containing minor face d.

6. the cellular bone prosthesis stereochemical structure of a kind according to claim 5, is characterized in that: hexagonal long limit c is mutually vertical for the described tetrakaidecahedron 2.

7. the cellular bone prosthesis stereochemical structure of a kind according to claim 6, is characterized in that: the described tetrakaidecahedron has 32 limits, and wherein 4 long limit c length are identical with long limit a, and 16 side length are article 12, the length of side is article 4, side length is

8. as described in claim 1 to 7 any one, the application on bone prosthesis prepared by the cellular bone prosthesis space structure of one kind.