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Novel processing technology for root canal file and root canal file

A processing technology and root canal file technology, which is applied in the fields of adding protective layer, medical science, dentistry, etc., can solve the problems of reducing the utilization rate of expensive materials, reducing the production cost of root canal files, and poor welding performance of nickel-titanium alloys. The effect of improving welding reliability, continuous processing and improving processing efficiency

Pending Publication Date: 2020-05-05
江苏盛玛特新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the prior art using a single material, the composite body of the present invention can be superimposed on other materials with good weldability, which improves the problem of poor weldability of nickel-titanium alloys, greatly reduces the utilization rate of expensive materials, and improves the processing efficiency. The efficiency of the process, thereby greatly reducing the production cost of the root canal file

Method used

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  • Novel processing technology for root canal file and root canal file
  • Novel processing technology for root canal file and root canal file
  • Novel processing technology for root canal file and root canal file

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] The novel root canal file processing technology of the present invention mainly includes two parts: making a composite embryo body and material reduction processing. The composite body includes a metal tube 1 and one or more metal rods 2, the metal rod 2 is drawn in the metal tube 1 and drawn synchronously with the metal tube 1, and the metal tube 1 forms a dense package outside the metal rod 2.

[0066] The steps for making a composite embryo body include:

[0067] S1 as figure 1 As shown, the central part of a metal rod is processed into a metal tube 1 with a hollow structure through tools such as an electric spark punching machine, a wire electric discharge machine, and an electric spark forming machine tool; the material of the metal tube 1 can be nickel-titanium alloy, Stainless steel, cobalt-chromium alloy, copper, etc.; the material of the metal rod 2 can be nickel-titanium alloy, stainless steel, cobalt-chromium alloy, copper, etc.;

[0068] S2 as figure 2 A...

Embodiment 2

[0081] The difference between this embodiment and Embodiment 1 is that when the file body 4 is processed by mechanical twisting, the material reduction process is as follows:

[0082] T1' as Figure 17 As shown, the composite embryo body twice the length of the root canal file is intercepted, and then centered on the midpoint of the composite embryo body, the two sides are symmetrically divided into three parts: the handle 3, the file body 4 and the connecting rod 5, and the two sides The 4 parts of the compound embryo body file body are connected at the midpoint; the outer metal tube 1 of the file body 4 is removed by grinding or chemical methods to expose the inner metal rod 2; the outer metal tube of the connecting rod 5 is partially removed 1. Make the thickness of the metal tube 1 attached to the outside of the connecting rod 5 be 0.05-0.4mm;

[0083] T2' as Figure 18 As shown, the first twisting end 8 and the second twisting end 9 are respectively located in the middl...

Embodiment 3

[0089]The main difference between this embodiment and Embodiment 1 is that the root canal file is not integrally formed. That is, in the process of subtractive machining:

[0090] T1" as Figure 22 As shown, the composite embryo body that is slightly larger than the length of the file body 4+connecting rod 5 is intercepted, and then the composite vertebral body is divided into two parts: the file body 4 and the connecting rod 5; the metal tube 1 of the outer layer of the connecting rod 5 is partially removed to make the connection The metal tube 1 attached to the outside of the rod 5 has a thickness of 0.05-0.4 mm; the outer metal tube 1 of the file body 4 is removed by grinding or chemical methods, and the inner metal rod 2 is exposed;

[0091] T2" as Figure 23 As shown, by grinding or mechanical screwing, the metal rod 2 after removing the outer metal tube 1 is made into a file body 4 with threads on the surface;

[0092] T3" as Figure 24 As shown, the handle 3 is proc...

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Abstract

The invention discloses a novel processing technology for a root canal file and the root canal file and puts forward the root canal file processed with the composite blank body technology so as to overcome the defects of expensive materials, high processing costs and low processing efficiency of root canal files in the prior art. According to a blank of the root canal file, a composite blank bodyis formed through drawing and compositing of two or same materials, and then a handle, a connecting rod and a file body are processed at different parts of the composite blank body. The technology hasthe advantages that inner and outer materials can be matched flexibly, a metal tube and a metal bar of the composite blank body can be made of different materials, the use effect is not affected while materials of a file body meet operation requirements, and the cost is convenient to control. During screwing manufacturing of threads of file bodies, screwing manufacturing is performed on two connected composite blank bodies simultaneously, the two connected composite blank bodies are cut off in the middle finally, two root canal files are processed simultaneously, and thus the processing efficiency is improved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a novel root canal file processing technology and a root canal file processed by the technology. Background technique [0002] Machine-use titanium-nickel alloy root canal files appeared in the 1990s, and began to be widely used in my country around 2010, which greatly improved the level and efficiency of root canal treatment in oral medicine. Especially in the preparation of complex and small root canals, it has obvious advantages over traditional stainless steel root canal files. Compared with the stainless steel file, the nickel-titanium alloy file body has the characteristics of good elasticity, low hardness, and good flexibility, which can complete the root canal preparation in a shorter time and avoid excessive cutting of the dentin in the root canal. Doctor's favor. [0003] Because nickel-titanium alloys are expensive, and root canal files are disposable consumables, in o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00A61C5/42
CPCB23P15/00A61C5/42
Inventor 黄兵民刘晶向义
Owner 江苏盛玛特新材料科技有限公司
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