Gradient unit for bone repair, porous scaffold and preparation method
A porous scaffold and bone repair technology, applied in the fields of application, bone implants, medical science, etc., can solve the problems of less implant design, only considering uniaxial load, etc., to improve shear resistance and bending resistance. Optimum load capacity and shear resistance, well-designed effects
Active Publication Date: 2021-02-19
SOUTH CHINA INST OF COLLABORATIVE INNOVATION
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Problems solved by technology
It can be seen from the published literature that most of the structural designs of existing implants only consider uniaxial loads, and there are few implants that need to bear bending loads
Method used
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[0033] Such as Figure 1-Figure 4 A gradient unit for bone repair is shown, including several structural units 1 and several reinforcing beams 2; the structural unit 1 includes a first porous structure 3 and a second porous structure 4 that are oppositely arranged and connected, and the The first porous structure 3 has a first receiving surface, the second porous structure 4 has a second receiving surface, the first receiving surface is set opposite to the second receiving surface, and the first receiving surface is provided with at least two Root reinforced beam 2, the second bearing surface of the second porous structure 4 and the first bearing surface of the adjacent structural unit 1 are sequentially merged to form a porous unit 5, the radius of the reinforced beam 2 is along the radius of the porous unit 5 The head ends gradually decrease towards the tail ends, and the second receiving surfaces at the tail ends of the two porous units 5 merge to form a gradient unit. Und...
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The invention relates to the technical field of medical implant materials, and discloses a gradient unit for bone repair, including several structural units and several reinforcing beams; the structural unit includes a first porous structure and a second porous structure that are oppositely arranged and connected, The first porous structure has a first receiving surface, the second porous structure has a second receiving surface, the first receiving surface is set opposite to the second receiving surface, the first receiving surface is provided with at least two reinforcing beams, and the second porous structure The second receiving surface of the structure merges with the first receiving surface of the adjacent structural unit to form a porous unit. The radius of the reinforced beam decreases gradually from the head end to the tail end of the porous unit, and the second receiving surfaces at the ends of the two porous units meet. Merge to form a gradient unit. The invention also discloses a porous support for bone repair and a preparation method of the porous support for bone repair. The beneficial effect is that: the modulus of elasticity is low, and it is suitable for bearing bending load.
Description
technical field [0001] The invention relates to the technical field of medical implant materials, in particular to a gradient unit for bone repair, a porous support and a preparation method. Background technique [0002] In the field of bone tissue engineering, metal porous implants are the focus of research. By designing the porous structure, the metal material can be matched with the natural bone tissue of the human body in terms of mechanical properties and biological properties. Although the research in this direction has been carried out for many years, the practical application of bone tissue engineering is still subject to multiple limitations. Among them, the individual differences in the service environment of implants lead to the difficulty of standardization, which is an important restrictive factor. Most of the existing research simplifies the practical application and uses more intuitive standards for evaluation. From the perspective of mechanical compatibili...
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IPC IPC(8): A61F2/28A61L27/04A61L27/06A61L27/50A61L27/56
CPCA61F2/2846A61F2002/30948A61F2002/30968A61F2002/3097A61L27/047A61L27/06A61L27/50A61L27/56A61L2430/02
Inventor 郑华德刘丽丽张明
Owner SOUTH CHINA INST OF COLLABORATIVE INNOVATION