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Diamond ene bone nail and its manufacturing method

A production method and diamondene technology, applied in the field of fracture fixation materials, can solve the problems of loosening of internal fixators, weak torsional strength, deformation or fracture, etc., and achieve the effects of reduced impact, strong crystallinity, and high particle size concentration.

Active Publication Date: 2018-08-21
ZHENGZHOU ARTIFICIAL DIAMOND & PROD ENG TECH RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the use of absorbable fracture internal fixation materials has the advantage of avoiding secondary surgery, its own strength is not good enough, and internal fixation may become loose, deformed or broken when used on fracture ends with high stress; at the same time, its torsion resistance The strength is weak, and improper force will twist the nut or cause the screw to deform when it is implanted into the human body during the operation.

Method used

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  • Diamond ene bone nail and its manufacturing method
  • Diamond ene bone nail and its manufacturing method
  • Diamond ene bone nail and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The diamondene bone screw is made of nanodiamondene with lamellar single crystal structure and absorbable materials. The absorbable material is polyester material such as polylactide; the carbon atoms in the same sheet of nanodiamondene are sp3 Orbital hybrid carbon bonds are connected, and the carbon atoms between layers are connected by sp2 hybrid carbon bonds; the lattice spacing of nanodiamondene is 0.21nm; the average particle size R of nanodiamondene is 20nm; nanodiamondene The C content of the carbon dioxide is 99-100%. The volume ratio of nanodiamondene to absorbable material is 3:7.

Embodiment 2

[0022] The diamondene bone screw is made of nanodiamondene with lamellar single crystal structure and absorbable materials. The absorbable material is polyester material such as polylactide; the carbon atoms in the same sheet of nanodiamondene are sp3 Orbital hybrid carbon bonds are connected, and the carbon atoms between layers are connected by sp2 hybrid carbon bonds; the lattice spacing of nanodiamondene is 0.21nm; the average particle size R of nanodiamondene is 500nm; nanodiamondene The C content of the carbon dioxide is 99-100%. The volume ratio of nanodiamondene to absorbable material is 0.6.

Embodiment 3

[0024] The diamondene bone screw is made of nanodiamondene with lamellar single crystal structure and absorbable materials. The absorbable material is polyester material such as polylactide; the carbon atoms in the same sheet of nanodiamondene are sp3 Orbital hybrid carbon bond connection, the carbon atoms between layers are connected by sp2 hybrid carbon bond; the lattice spacing of nanodiamondene is 0.21nm; the average particle size R of nanodiamondene is 300nm; nanodiamondene The C content of the carbon dioxide is 99-100%. The volume ratio of nanodiamondene to absorbable material is 0.8.

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Abstract

The invention belongs to the technical field of fracture fixation materials, and specifically discloses a diamondene bone screw, which is prepared from nanodiamondene with a lamellar single crystal structure and absorbable materials; It is connected by sp3 orbital hybrid carbon bonds, and the carbon atoms between layers are connected by sp2 hybrid carbon bonds; the lattice spacing of nanodiamondene is 0.21nm; the average particle size of nanodiamondene is R, 20≤ R≤500nm; the C content of nanodiamondene is 99-100%. The invention has simple structure, high strength and high safety.

Description

technical field [0001] The invention belongs to the technical field of fracture fixation materials, and in particular relates to a diamond ene bone screw and a manufacturing method thereof. Background technique [0002] After internal fractures in human joints, anatomical positioning and internal fixation are required. Traditional internal fixation materials for fractures are generally made of stainless steel, titanium or alloy materials, which will cause corrosion, allergies, and stress shielding effects after long-term implantation. And lead to osteoporosis, easily lead to postoperative fracture again; at the same time, after the fracture heals, it is necessary to perform another operation to remove the internal fixation, which increases the burden and pain of the patient. The emergence of absorbable fracture internal fixation materials can reduce the number of operations, and it is not necessary to perform another operation to remove the internal fixation, which effective...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L31/12A61L31/14A61B17/68A61B17/84C01B32/26B82Y30/00
CPCA61B17/686A61B17/846A61L31/126A61L31/148A61L2400/12B82Y30/00C01P2004/64C08L67/04
Inventor 郭留希赵清国杨晋中薛胜辉刘永奇薛光辉
Owner ZHENGZHOU ARTIFICIAL DIAMOND & PROD ENG TECH RES CENT
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