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Outer-layer porous orthopedic hard implant material with integrated radial structure and function and preparation method and application thereof

An implant material and function technology, applied in prosthesis, medical science, tissue regeneration, etc., can solve the problems of increasing the difficulty of processing and implantation, increasing the cost of material preparation, and changing mechanical properties, so as to maintain the pore structure characteristics and biological activity. Ability, the preparation process is convenient and clean, and the effect of short holding time

Inactive Publication Date: 2019-04-23
YUNNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The material obtained in this application has an axially layered mesh structure, and its compressive strength is low, and its mechanical properties are prone to change after long-term use, resulting in loosening, falling off or even failure; since the bones of the human body support are mostly irregular rod-shaped, the use of layers Shaped structure materials will greatly increase the difficulty of subsequent processing and implantation, and the sintering temperature of this preparation process is high, and the sintering time is long, which increases the cost of material preparation

Method used

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  • Outer-layer porous orthopedic hard implant material with integrated radial structure and function and preparation method and application thereof
  • Outer-layer porous orthopedic hard implant material with integrated radial structure and function and preparation method and application thereof
  • Outer-layer porous orthopedic hard implant material with integrated radial structure and function and preparation method and application thereof

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Embodiment 1

[0035] This embodiment provides a method for preparing a radial structure-function integrated outer layer porous orthopedic hard implant material, which specifically includes the following steps:

[0036] (1) By Ti: 74%, Nb: 20%, Zr: 6% by mass percentage, in the vacuum glove box, take by weighing Ti, Nb, Zr metal powder (titanium, The scanning electron micrographs of niobium and zirconium metal powders and the transmission electron micrographs of HA are as follows figure 1 shown); the weighed Ti, Nb, Zr metal powders are put into the cemented carbide steel ball milling jar, the ball milling dispersant absolute ethanol is added, and stainless steel ball milling balls are added according to the ball-to-material ratio 4:1 (mass ratio), wherein the stainless steel The size ratio of ball milling balls is 2:1 (mass ratio). After the assembly is completed and the tank is sealed, this step is completed in a vacuum glove box;

[0037] (2) Put the sealed tank body of step (1) into a ...

Embodiment 2

[0046] This embodiment provides a method for preparing an outer porous orthopedic hard implant material with consistent radial composition and structural changes, which specifically includes the following steps:

[0047] (1) By Ti: 70%, Nb: 17%, Zr: 13% by mass, in a vacuum glove box, take respectively Ti, Nb, Zr metal powders with a purity of 99.9% and an average particle size of 50 μm; weigh The Ti, Nb, Zr metal powders are put into the hard alloy steel ball mill tank, add ball mill dispersant dehydrated alcohol, add stainless steel ball mill balls by ball-to-material ratio 4:1 (mass ratio), wherein the size ball ratio of stainless steel ball mill balls It is 2:1 (mass ratio). After the assembly is completed and the tank is sealed, this step is completed in a vacuum glove box;

[0048] (2) Put the sealed tank body of step (1) into a ball mill for ball milling and mixing. The mechanical ball milling parameters are: rotating speed: 300r / min, ball milling time: 10 hours. Afte...

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Abstract

The invention discloses an outer-layer porous orthopedic hard implant material with integrated radial structure and function and a preparation method and application thereof. The preparation method comprises the following steps of mechanical ball milling titanium, niobium and zirconium powder according to the proportion to obtain the Ti-Nb-Zr composite powder, mechanical ball milling titanium, niobium, zirconium and HA powder to obtain the Ti-Nb-Zr -HA powder, then mixing with the pore-forming agent ammonium bicarbonate powder to obtain the composite powder B, pre-compression molding the Ti-Nb-Zr composite powder and the composite powder B to obtain the cylinder pressed blank of the radial grading structure, and finally sintering by utilizing a pulse plasma activated sintering furnace to obtain the orthopedic hard implant material. The orthopedic hard implant material not only has a porous structure due to the outer layer, the bioactive ceramic HA is added, so that the composite material has good bone bonding, the bone integration performance and the low elastic modulus suitable for matching with bone, the orthopedic hard implant material also has excellent compression resistance due to the compact structure of the core part, can be used as a good artificial bone tissue replacement material.

Description

technical field [0001] The invention relates to the technical field of preparation of orthopedic hard implant biomedical materials, in particular to a radial structure-function integrated outer layer porous orthopedic hard implant material and its preparation method and application. Background technique [0002] The elastic modulus is one of the important properties for evaluating biomedical materials for orthopedic implants. If the elastic modulus value of biomaterials is too high compared with the value of natural bone, it will show biomechanical incompatibility. The elastic modulus of biomaterials is too high. When subjected to external stress, the stress-bearing material and natural bone tissue will produce different strains due to the difference in elastic modulus, which will appear at the contact interface between the implant material and natural bone tissue. The relative displacement will cause loosening at the joint interface, and even cause shedding when the service...

Claims

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Application Information

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IPC IPC(8): C22C14/00C22C32/00C22C1/08B22F3/11B22F7/06A61L27/56A61L27/50A61L27/12A61L27/06A61L27/54
CPCA61L27/06A61L27/12A61L27/50A61L27/54A61L27/56A61L2300/112A61L2300/412A61L2430/02A61L2430/12A61L2430/24B22F7/004B22F2999/00C22C14/00C22C32/0089B22F3/1134B22F2202/13
Inventor 张瑾何远怀孙韬陈安然
Owner YUNNAN UNIV
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