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Artificial-titanium auditory ossicle

An artificial, single technology, applied in medical science, ear implants, prostheses, etc., can solve problems such as prolonged operation time, high storage conditions, and failure to be widely used, achieving huge economic and social values, and good sound effect

Inactive Publication Date: 2012-02-08
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, autogenous ossicles often have tiny lesions, which can easily cause postoperative infection. Autologous cartilage is soft and easy to deform, and adhesions are prone to occur after surgery. Considering long-term stability, autologous materials should not be selected; It is difficult to process and shape, so the operation time is prolonged, and it has not been widely used
2) Allogeneic materials have good biocompatibility and can be carved into different shapes before surgery, but the storage conditions are relatively high, and there is a possibility of spreading diseases
3) The remarkable advantage of porous polymer polyethylene is that it is light and porous, suitable for tissue growth, but it has the disadvantages of instability and easy dislocation. Now this method has been completely abandoned
5) Titanium artificial ossicle has good biocompatibility and tissue affinity, good durability, light weight, strong plasticity, can be clamped, and is not easy to dislocate. It is the best material for ossicle repair. No artificial titanium has been found so far. A case of ossicular fusion with bone in the middle ear

Method used

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  • Artificial-titanium auditory ossicle
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The material is medical pure titanium wire, which is rolled through the deformation of more than 70% in the two-phase region, and annealed in the lower two-phase region to obtain an equiaxed structure. The piston-shaped artificial titanium ossicles are obtained through integral processing by special machinery.

[0032] Piston-type titanium ossicles, the outer diameter of the top hook is 1.5mm, the inner diameter is 1.1mm, the diameter of the pillar is 0.5mm, the total length is 7mm, and the total weight is 2.4mg.

Embodiment 2

[0034] The material is medical low-gap Ti-6Al-4V titanium alloy wire, which is rolled through the deformation of more than 70% in the two-phase region, and annealed in the lower two-phase region to obtain an equiaxed structure. The piston-shaped artificial titanium ossicles are obtained through integral processing by special machinery.

[0035] Piston-type titanium ossicles, the overall length is 6mm, and the total weight is 2.2mg.

Embodiment 3

[0037] The material is medical Ti-6A1-7Nb titanium alloy wire, rolled through the two-phase region with a deformation of more than 70%, and annealed in the lower two-phase region to obtain an equiaxed structure. The piston-shaped artificial titanium ossicles are obtained through integral processing by special machinery.

[0038] Piston-type titanium ossicles, the overall length is 5mm, and the total weight is 1.9mg.

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Abstract

The invention relates to an artificial-titanium auditory ossicle, which is characterized in that a microscopic structure of the artificial-titanium auditory ossicle is an equiaxial structure or a duplex structure. Compared with the prior art, the artificial-titanium auditory ossicle provided by the invention is good in sound transmission effects and is easy for the formation of standard and feasible technical specifications in the processes of designing, processing and manufacturing, using and the like. The artificial-titanium auditory ossicle has expectant huge economic and social values.

Description

Technical field: [0001] The invention relates to the materials, internal microstructure selection, design, regulation, and requirements for processing technology of artificial implants for ossicular chain reconstruction in micro-otology surgery, and particularly provides an implant made of titanium and titanium alloy materials. artificial titanium ossicles. Background technique: [0002] In the prior art, otitis media is a common ear disease throughout the year. Perennial pus and water discharge make many patients unbearable, and severe patients may even lose their hearing. Using artificial ossicles or their derivatives to repair and reconstruct the ossicular chain can completely cure otitis media and make patients feel real sounds. [0003] Since Wullstein et al first placed a support made of ethylene acrylic acid between the tympanic membrane and the oval window when performing middle ear surgery in 1952, people have carried out a lot of practice and exploration on the ma...

Claims

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Application Information

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IPC IPC(8): A61F2/18A61L27/06
CPCA61F2/18A61F2002/183
Inventor 李阁平
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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