Biomedical NiTiFe-Ta composite board and preparation method thereof

A biomedical and composite plate technology, applied in the field of biomedical composite materials, can solve the problems that cannot be fully satisfied, and achieve the effect of excellent biocompatibility, high bonding strength, and uniform surface

Active Publication Date: 2021-11-30
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing NiTi-based shape memory alloys cannot fully meet the biocompatibility of some biomedical devices (such as surgical drivers and self-expanding stents, etc.) No cytotoxicity) and comprehensive performance requirements of large class linear elasticity (i.e. class linear elasticity and large recoverable strain), the invention provides a novel biomedical NiTiFe-Ta composite material and its preparation method, making full use of the outer layer The good biocompatibility (no cytotoxicity) of high-purity Ta and the large linear elastic deformation characteristics of the inner layer NiTiFe alloy can realize good biocompatibility (no cytotoxicity), similar linear elastic deformation and large The preparation of new composite materials that restore the amount of strain has important application prospects in the field of biomedicine

Method used

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  • Biomedical NiTiFe-Ta composite board and preparation method thereof
  • Biomedical NiTiFe-Ta composite board and preparation method thereof
  • Biomedical NiTiFe-Ta composite board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation operation of the present embodiment comprises the following steps:

[0036] (1) Selection of raw materials, including:

[0037] Outer layer material: select high-purity Ta (Ta content is 99.96wt.%);

[0038] Inner layer material: choose Ni 50.4 Ti 49.5 Fe 0.1 alloy.

[0039] (2) Biomedical Ni 50.4 Ti 49.5 Fe 0.1 -Preparation of a large class of linear elastic composite materials, including:

[0040] ① Using wire cutting and / or machining methods, from high-purity Ta and Ni 50.4 Ti 49.5 Fe 0.1 Two high-purity Ta plates with a length of 70 mm, a width of 70 mm, and a thickness of 0.2 mm and a NiTiFe plate with a length of 70 mm, a width of 70 mm, and a thickness of 4.5 mm were cut from the blank;

[0041] ② Mechanically polish the cut high-purity Ta plate and NiTiFe plate on 200-mesh, 500-mesh, 1000-mesh and 1500-mesh sandpaper respectively, and then clean the surface with an ultrasonic cleaner;

[0042] ③Two high-purity Ta plates and a Ni plate...

Embodiment 2

[0054]The preparation operation of the present embodiment comprises the following steps:

[0055] (1) Selection of raw materials, including:

[0056] Outer layer material: select high-purity Ta (Ta content is 99.97wt.%);

[0057] Inner layer material: choose Ni 50.0 Ti 49.7 Fe 0.3 alloy.

[0058] (2) Biomedical Ni 50.0 Ti 49.7 Fe 0.3 -Preparation of a large class of linear elastic composite materials, including:

[0059] ① Using wire cutting and / or machining methods, from high-purity Ta and Ni 50.0 Ti 49.7 Fe 0.3 Two high-purity Ta plates with a length of 75 mm, a width of 75 mm, and a thickness of 0.25 mm and a NiTiFe plate with a length of 75 mm, a width of 75 mm, and a thickness of 5 mm were cut from the blank;

[0060] ② Mechanically polish the cut high-purity Ta plate and NiTiFe plate on 200-mesh, 500-mesh, 1000-mesh and 1500-mesh sandpaper respectively, and then clean the surface with an ultrasonic cleaner;

[0061] ③Two high-purity Ta plates and a Ni plate a...

Embodiment 3

[0073] The preparation operation of the present embodiment comprises the following steps:

[0074] (1) Selection of raw materials, including:

[0075] Outer layer material: select high-purity Ta (Ta content is 99.98wt.%);

[0076] Inner layer material: choose Ni 49.5 Ti 50.0 Fe 0.5 alloy.

[0077] (2) Biomedical Ni 49.5 Ti 50.0 Fe 0.5 -Preparation of a large class of linear elastic composite materials, including:

[0078] ① Using wire cutting and / or machining methods, from high-purity Ta and Ni 49.5 Ti 50.0 Fe 0.5 Two high-purity Ta plates with a length of 80 mm, a width of 80 mm, and a thickness of 0.3 mm and a NiTiFe plate with a length of 80 mm, a width of 80 mm, and a thickness of 5.5 mm were cut from the blank;

[0079]② Mechanically polish the cut high-purity Ta plate and NiTiFe plate on 200-mesh, 500-mesh, 1000-mesh and 1500-mesh sandpaper respectively, and then clean the surface with an ultrasonic cleaner;

[0080] ③Two high-purity Ta plates and a Ni plate ...

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Abstract

The invention relates to the technical field of biomedical composite materials, in particular to a NiTiFe-Ta biomedical composite material with no cytotoxicity, linear elastic deformation and large recoverable strain capacity and a preparation method of the NiTiFe-Ta biomedical composite material. The NiTiFe-Ta composite material prepared by the method can simultaneously have no cytotoxicity (namely excellent biocompatibility) and large linear-like elastic deformation capability (namely, stress can be approximately linearly increased along with increase of strain, and large recoverable strain is accompanied); the performance bottleneck that an existing NiTi-based shape memory alloy cannot have both excellent biocompatibility and large-class linear elastic deformation capacity can be solved, the application range of a novel composite material in the biomedical field is widened, and the urgent requirement of some biomedical fields for a high-performance composite material is met.

Description

Technical field: [0001] The invention relates to the technical field of biomedical composite materials, in particular to a NiTiFe-Ta biomedical composite material with no cytotoxicity, similar linear elastic deformation and large recoverable strain and a preparation method thereof. Background technique: [0002] With the progress of society and the improvement of people's living standards, people's demand for biomedical materials is increasing, and at the same time, more stringent requirements are put forward for the performance of biomedical materials. For some medical fields (such as surgical actuators and self-expanding stents, etc.), there is an urgent need to have both non-cytotoxicity (that is, excellent biocompatibility) and large-scale linear elastic deformation capabilities (that is, the stress can change with strain). The increase exhibits approximately linear growth and is accompanied by a large recoverable strain) of new biomedical materials. Therefore, the desi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/01B32B15/18B32B37/00B32B37/10B32B38/00B32B38/16C21D9/00C22C19/03C22F1/10C22F1/18B21B3/00B21B37/00
CPCB32B15/013B32B15/015B32B37/00B32B38/0004B32B38/0012B32B38/0036B32B38/162B32B37/1018C21D9/0081C22F1/18C22F1/10C22C19/03B21B3/00B21B37/00B32B2038/0016B32B2535/00
Inventor 郭顺张慧慧黄豪丁旺凌瀚宇
Owner JIANGSU UNIV
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