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Preparation method of high-strength degradable nanometer medical porous titanium-based composite material

A titanium-based composite material and nanoporous technology, which is applied in the field of medical implants, can solve the problems of poor affinity and degradability, inability of bone tissue to grow in, and cannot heal, and achieves improved medical functions and good degradability. , the effect of good comprehensive performance

Active Publication Date: 2018-08-14
SHANDONG JIANZHU UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Traditional medical materials have poor compatibility and degradability with the human body, bone tissue cannot grow inward, and cannot heal with human bones

Method used

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  • Preparation method of high-strength degradable nanometer medical porous titanium-based composite material
  • Preparation method of high-strength degradable nanometer medical porous titanium-based composite material
  • Preparation method of high-strength degradable nanometer medical porous titanium-based composite material

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example 1

[0034] Example 1: Preparation method of a high-strength nano-medicine porous titanium-based composite material

[0035] Ti powder, Mg particles (purity 99.6%), Si particles (purity 99.9%), V particles, Ag particles and TiC-SiC-ZrC whisker particles in a molar ratio of 40:10:45:3:1.5: 0.5 Evenly mixed and prepared, bonded with isopropanol, then extruded on a press through a press die, and dried at room temperature for 5 minutes, so that the isopropanol evaporated and the adhesion between the particles disappeared, and finally formed D10mm×68mm rod-shaped sample; the rod-shaped sample is put into the sheath, rotated repeatedly through the cross-shaped channel, and extruded 4 times, resulting in severe plastic deformation to obtain a titanium-based composite material with nano-grain structure. The cross-shaped mold channel is produced The rod-shaped nanomaterials were soaked in 5 L of sodium hydroxide (NaOH) aqueous solution at 60 °C for 12 h to remove Si, and then, the porous Ti...

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Abstract

The invention relates to a preparation method of a degradable nanometer titanium-based composite material with human body affinity and with the mechanical property being similar to that of a human skeleton, in particular to a novel porous titanium-based composite material which is applied to the field of medical implantation. The porous titanium-based composite material with a nanometer grain structure takes titanium, magnesium, silicon, vanadium and silver as initial components, and the composition of the initial components can be expressed by aTi-bMg-cSi-dV-eAg-f(TiC-SiC-ZrC), wherein a is equal to 40, b is equal to 10, c is equal to 45, d is equal to 3, e is equal to 1.5, f is equal to 0.5, and the sum of a, b, c, d, e and f is 100. The high-strength nanometer Ti-3V-1.5Ag-0.5(TiC-SiC-ZrC) titanium-based porous composite material is obtained through a chemical removal method, the obtained porous nanometer material has the mechanical property being similar to that of the human skeleton, reliable mechanical hardness and strength, good toughness and good degradability are achieved, and therefore, the material has potential application value and can be used for the field of medical implantation.

Description

technical field [0001] The invention relates to a preparation method of a degradable nano-titanium-based composite material with human affinity and mechanical properties close to human bone, specifically a novel porous titanium-based composite material, which is applied in the field of medical implants. Background technique [0002] At present, metals and alloys used in medicine mainly include medical stainless steel, medical cobalt-based alloys, medical titanium and its alloys, medical magnesium alloys and other metals and alloys. Traditional medical metals and alloys are easy to corrode, and the dissolved ions may induce diseases and cause cell And tissue necrosis, poor mechanical properties, no biological activity, poor wear resistance, fatigue and fracture toughness are not ideal. Moreover, traditional implants have too high stiffness. Due to this stress shielding, large and rigid femoral prostheses are not recommended for patients with low bone density, which involves b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/11B22F3/20C22C49/11C22C49/14C22C47/14A61L27/06A61L27/02A61L27/56A61L27/50A61L27/58C22C101/12
CPCA61L27/025A61L27/06A61L27/50A61L27/56A61L27/58C22C47/14C22C49/11C22C49/14B22F3/1134B22F3/20A61L2430/02
Inventor 徐淑波
Owner SHANDONG JIANZHU UNIV
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