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3D printing bone defect filling material

A technology for filling materials and printing bone, applied in the field of medical materials, can solve problems such as single structure and inability to apply to bone defects, and achieve the effects of enhancing friction, improving stability, and promoting bone ingrowth

Active Publication Date: 2016-02-17
TRAUSON CHINA MEDICAL INSTR COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing bone defect filling particles have a single structure and cannot be applied to different bone defects

Method used

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  • 3D printing bone defect filling material
  • 3D printing bone defect filling material
  • 3D printing bone defect filling material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 , 5 As shown, it is the 3D printing bone defect filling material of the present invention, the filling material includes a granular body 1 and a flexible mesh 2, and the flexible mesh 2 wraps the granular body 1. The granular body 1 is a stick body with four supporting vertices.

[0024] The stick body includes a center ball 11 inside and side balls 12 evenly distributed around the center ball 11, the number of side balls 12 is four, and each side ball 12 is connected to the center ball 11 through a columnar body 13 , the length of each columnar body 13 is equal. The diameter of the columnar body 13 gradually decreases from the side sphere 12 to the center sphere 11 .

[0025] Micropores are evenly distributed on the surface of the ball stick body, and the pore diameters of the micropores gradually decrease from the surface of the particle body 1 to the inside, that is, the cross-section of the micropores is in the shape of a bone trabecula.

[0026...

Embodiment 2

[0029] Such as figure 2 , 5 As shown, in this embodiment, the difference from Embodiment 1 is that the granular body 1 is a stick body with 6 supporting vertices, that is, the number of side balls 12 is 6. The columnar body 13 is cylindrical, and the ratio of the diameter of the side ball 12 to the diameter of the columnar body 13 is 1.3:1, 1.5:1, 1.7:1, 1.8:1 or 2:1, which can be 1.3-2:1 any value.

Embodiment 3

[0031] Such as image 3 , 5 As shown, in this embodiment, the difference from Embodiment 1 is that the particle body 1 is a stick body with 8 supporting vertices, that is, the number of side balls 12 is 8.

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Abstract

The invention belongs to the technical field of medical materials and particularly relates to a 3D printing bone defect filling material. The filling material comprises particles and a flexible screen for wrapping the particles, wherein mesh openings are formed in the surface of the flexible screen, the aperture of each mesh opening is smaller than that of each particle, each particle is formed through supporting of 4, 6 or 8 support vertices, and micropores are uniformly formed in the surface of each particle. The 3D printing bone defect filling material is applicable to the bone defect conditions of different parts.

Description

technical field [0001] The invention belongs to the technical field of medical materials, and in particular relates to a 3D printing bone defect filling material. Background technique [0002] Finding ideal artificial bone materials to repair clinical bone defects caused by various reasons has always been a very active research topic in the field of orthopedics. The material used to fill the bone defect cavity or the gap between the bone implant device and the bone bed, and its function is to accelerate the healing of bone defect or fix the bone implant device. The existing bone defect filling particles have a single structure and cannot be applied to different bone defects. Contents of the invention [0003] The purpose of the present invention is to provide a 3D printing bone defect filling material, which is suitable for bone defects in different parts. [0004] In order to achieve the above object, the technical solution adopted in the present invention is: the filli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/50A61L27/56
Inventor 朱忠林董乃光王爱国杨抒宋晓东
Owner TRAUSON CHINA MEDICAL INSTR COMPANY
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