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A 3D printed medical porous metal bone tissue scaffold with gradient pore size

A 3D printing and porous metal technology, applied in the field of 3D printing medical metal implants, can solve the problems of bone healing, difficult bone tissue implants, unfavorable bone tissue ingrowth, etc., to achieve simple and convenient adjustment, and the method is simple and effective Effect

Active Publication Date: 2018-05-25
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem that the single repeating microporous structure in the prior art is not conducive to the growth of bone tissue, and it is difficult for the bone tissue implant to achieve bone healing with its own bone, and to provide a 3D printing gradient aperture medical porous metal bone tissue Scaffold, strengthen the structure design, make the tissue engineering bone scaffold with gradually changing pores, regulate the ingrowth of bone tissue and fibroblasts through the gradually changing pores, and finally achieve the best bone healing

Method used

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  • A 3D printed medical porous metal bone tissue scaffold with gradient pore size
  • A 3D printed medical porous metal bone tissue scaffold with gradient pore size
  • A 3D printed medical porous metal bone tissue scaffold with gradient pore size

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Embodiment Construction

[0022] The present invention is described in further detail now in conjunction with accompanying drawing. The drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0023] figure 1 Shown is a schematic diagram of the structure of the 3D printed gradient aperture medical porous metal bone tissue scaffold. The complete structure of the scaffold is a hexahedral structure. figure 1 In order to partially omit the view, only three exterior facades that are orthogonal to each other are kept, Figure 2 to Figure 4 are the three components that make up the bracket. The 3D printing gradient aperture medical porous metal bone tissue scaffold is composed of component A, component B and component C, component A, component B and component C are respectively located on the outer, middle and inner layers of the three-dimensional structur...

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Abstract

The invention discloses a 3D printing gradient aperture medical porous metal bone tissue scaffold, which aims to overcome the disadvantages of the prior art that the single and repeated microporous structure is not conducive to the growth of bone tissue, and the bone tissue implant is difficult to achieve bone healing with its own bone. The problem is that it is a hexahedral structure as a whole, which is composed of components A, B and C closely arranged, component A is arrayed on the outermost layer of the hexahedral structure, component B is arrayed on the second outer layer, and component C is arrayed on the innermost layer; components A, Both component B and component C have a hexahedral frame structure, and the aperture of component A is larger than that of component B, and the aperture of component B is larger than that of component C. The present invention manufactures tissue engineering bone scaffolds with gradually changing pores by strengthening the structural design, regulates the ingrowth of bone tissue and fibroblasts through the gradually changing pores, and finally achieves the best bone healing.

Description

technical field [0001] The invention relates to a 3D printing medical metal implant, in particular to a 3D printing gradient aperture medical porous metal bone tissue support, which is beneficial to the growth of bone tissue and promotes bone healing. Background technique [0002] The preparation of porous metal by 3D printing is of great significance for the development of tissue engineered bone, which reduces the damage to the patient's body caused by autologous bone transplantation, and also avoids the high cost of allogeneic bone transplantation. Swedish Arcam has successfully prepared orthopedic implants such as metal alloy acetabular cups, femoral stems, spine and skull through 3D printing technology, and some porous metal alloy bone repair implants have been used clinically. [0003] Porous metal printing mainly adopts the porous metal manufactured by electron beam melting (EBM) 3D printing technology, such as the Swedish Arcam company. The micropore size, porosity, c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L27/56
Inventor 秦彦国李瑞延
Owner JILIN UNIV
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