A kind of manufacturing method of personalized customized tantalum implant

A manufacturing method and implant technology, applied in the direction of bone implants, etc., can solve the problems of difficult and difficult processing of personalized customized tantalum implants, avoid stress shielding effect, increase the success rate, and benefit Osteogenic effect
CN104783929BInactive Publication Date: 2017-06-27XI AN JIAOTONG UNIV +1
10 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2017-06-27
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a personally-customized tantalum implantation material manufacturing method. The method comprises the following steps of adopting CT, MRI and other scanning images for rebuilding the appearance of a prosthesis of an implantation material, designing a three-dimensional negative type model of the implantation material according to the appearance of the prosthesis of the implantation material, and then utilizing additive manufacturing for obtaining a negative type mold of a support, wherein the amount of residual carbon of the negative type model is quite low; filling the mold with spherical beads capable of being burnt off and a high residual-carbon resin and curing agent mixture or a graphite powder, resin and curing agent mixture. Pyrolysis is performed in the vacuum environment or a special atmosphere oven; due to the fact that the amount of residual carbon is quite low, the carbon support of the implantation material with spherical holes can be obtained, finally, a tantalum layer is deposited on the surface of the carbon support by means of the chemical vapor deposition method, and personally-customized tantalum implantation material manufacturing is completed. The final tantalum implantation material is the mixture, wherein metal tantalum is deposited on the surface of the mixture, the carbon support is arranged inside the mixture, and the carbon support accounts for 1%-10% of the mixture by mass.
Need to check novelty before this filing date? Find Prior Art

Description

[0001] Technical field:

[0002] The invention belongs to the technical field of implant manufacture, and in particular relates to a manufacturing method of a personalized customized tantalum implant.

[0003] Background technique:

[0004] Compared with the most common titanium alloy currently used in medicine, porous tantalum has two advantages. On the one hand, the biocompatibility of porous tantalum is better than that of titanium alloy. Tantalum is a biologically inert material that does not react with acid and alkali at room temperature and will not be corroded in the human body. On the other hand, the elastic modulus of porous tantalum is 2.5-20GPa, which is close to the elastic modulus of human bone, which can effectively avoid the occurrence of stress shielding phenomenon, thereby reducing the risk of implant failure. However, tantalum is a refractory metal, which is difficult to process by traditional machining methods. The processing of individually tailored tantal...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More