CN206910405U

CN206910405U - A kind of new root canal file file body

Info

Publication number: CN206910405U
Application number: CN201620842832.2U
Authority: CN
Inventors: 钟声; 易安; 万军
Original assignee: DENJOY DENTAL Co Ltd
Current assignee: DENJOY DENTAL Co Ltd
Priority date: 2016-08-05
Filing date: 2016-08-05
Publication date: 2018-01-23
Anticipated expiration: 2026-08-05

Abstract

The utility model discloses a kind of new root canal file file body, it uses overall processing to be molded, file body front end helically centrum shape, the shape of cross section center of spiral centrum is designed with file body pivot using eccentric, and the variforms such as triangle, quadrangle, circle can be designed to by filing the shape of cross section of body.When the shape for filing body cross section is designed as rectangle, there was only two adjacent angles on arbitrary cross section on cutting circle, the stress point of root canal file greatly reduces the stress of root canal file, makes root canal file be not easy to produce fracture because stress is excessive only in two lines in working angles.Meanwhile cross section rectangle is designed with root canal file rotation center using eccentric, two other angle for not producing cutting is reached bigger chip removal, so as to which chip removal ability is stronger during root canal file use, root control significantly improves for rate.

Description

A kind of new root canal file file body

Technical field

The utility model belongs to type medical instrument for dental use field, and in particular to for carrying out a kind of new pipe of root canal File file body.

Background technology

Root canal is the most frequently used and maximally effective treatment method in dental pulp disease and periapical disease diagnosis and treatment.It has main steps that Thorough cleaning is carried out to lesion root pipe inside and root canal wall using root canal file, removes pathological tissues, and mould complete, smooth Root tube cavity, then carry out root canal disinfection and the other materials such as gutta-percha point are filled in molded root pipe, repaiied with reaching root pipe Multiple and treatment purpose.

Need to expand root pipe in endodontic procedure, remove dental nerve and other residues, root canal file is must not The instrument that can lack, various patterns root canal file is also more and more, and root canal file is typically made up of file handle and file body, such as Application No. 201220023702.8 utility model patent discloses a kind of machine root canal file, and its front end is blade, and blade passes through connecting portion It is fixed on handle, blade is formed by the distortion of odd-shaped cross section cone, has the groove of an annular in the connecting portion of root canal file, connecting portion exists The diameter of section of groove attenuates；The peak torque that groove can bear is less than the peak torque that blade can bear；Groove Close to the position of handle on connecting portion.

The utility model of Application No. 201420014772.6 discloses reciprocating left revolving blade root canal file, and it includes a handle Portion and bar portion, and the file body formed with spiral blade workspace and sophisticated seeker, it is characterized in that：Band helical edges workspace is in vertebra Body shape and its blade rotation direction are left revolving blade, and the tail end of bar portion is carved with root canal file length mark line, can according to its shank pattern difference It is divided into hand to use with machine with two kinds, the cross sectional shape for filing body is circular, triangle or quadrangle, and file body uses Nitinol or medical Strong elastic stainless steel wire material makes, and the file body of the centrum, its taper is 0.01-0.10.

The utility model of Application No. 201520088898.2 discloses the D type roots of a kind of high intensity and high antiflex cracking Pipe is filed, including handle, and the handle is connected with work department, and the work department includes blade and the connecting rod being connected with handle, institute State blade to be connected with handle through connecting rod, the blade is formed by centrum distortion, and the cross section of the centrum is D types.

So far, plus thread (dextrorotation) or reciprocating left-hand cut, cross section are either used as triangle, four The root canal file of the arbitrary shape such as side shape or D types, the center of its helical edges cross section are filed the pivot of body with it and overlapped, and horizontal Cutting angle (point) on section is on a concentric circles using pivot as the center of circle, each equal stress in cutting angle, and stress point is more (existing cross section is the root canal file of quadrangle as Figure 1-3, and its 4 cutting angles are revolved on a concentric circles, and with root canal file Turn center superposition, the stress point of root canal file forms 4 lines during chip), along with existing root canal file in use The problem of generally existing chip removal is difficult or insufficient, therefore easily cause root canal file to be broken.

Utility model content

The purpose of this utility model is to overcome above-mentioned root canal file problem present in practical operation, while improves it and cut Cut efficiency and propose a kind of new root canal file file body.

Specifically use following technical proposal：A kind of new root canal file file body, is molded, file body front end is in spiral shell using overall processing Centrum shape is revolved, the shape of cross section center of spiral centrum is designed with file body pivot using eccentric, i.e. cross-section center and file The pivot of body does not coincide, and the shape of cross section for filing body can be the variforms such as triangle, quadrangle, circle.

Further, when the shape of cross section is designed as the rectangle in quadrangle, due to using eccentric design, any horizontal stroke There was only two adjacent angles on section on cutting circle, so the stress point of root canal file is in two lines in working angles, drop The low stress of root canal file, makes root canal file be not easy to produce crack conditions because stress is excessive.Meanwhile cross section rectangle and root pipe File rotation center to design using eccentric, two other angle for not producing cutting is reached bigger chip removal, so as in root canal file Chip removal ability is stronger during use, and root control significantly improves for rate.

Brief description of the drawings

Fig. 1 is existing root canal file file body structural representation；

Fig. 2 is that the existing root canal file that section is quadrangle files schematic diagram of the body along A-A；

Fig. 3 is that the existing root canal file that section is quadrangle files cross-sectional view of the body along A-A；

Fig. 4 is a kind of new root canal file file body structural representation；

Fig. 5 is schematic diagram of the new root canal file file body of rectangular cross-section along A-A,

Fig. 6 is schematic diagram of the new root canal file file body of rectangular cross-section along B-B；

Fig. 7 is the new root canal file working effect schematic diagram that cross section is rectangle.

A1 is the pivot of existing file body in figure, and A2 is the cutting point in existing file body quadrangular section, and A3 is four sides Tee section, B1 are the pivots of new root canal file file body, and B2 is the cutting point on new root canal file file body square-section, and B3 is Square-section, C1 are the cutting points of new root canal file file body, and C2 is chip space, and C3 is cutting effect.

Embodiment

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with the accompanying drawings 4-7 and The utility model is described in further detail for embodiment.It should be appreciated that specific embodiment described herein is only solving The utility model is released, is not used to limit the utility model.

Embodiment one

Body is filed in cross section for a kind of new root canal file of rectangle as Figure 4-Figure 6, is molded using overall processing, file body front end Helically centrum shape, the shape of cross section of spiral centrum is rectangle, and center and the file body pivot of file body cross section rectangle are adopted Designed with bias, i.e., cross-section center does not coincide with filing the pivot B1 of body.

As shown in figure 5, on any rectangular cross section B3, only two adjacent angles are on cutting circle, i.e. only two phases Adjacent cutting point B2 is on cutting circle, so the stress point of root canal file reduces root canal file in two lines in working angles Stress, make root canal file be not easy to produce crack conditions because stress is excessive.

As shown in fig. 7, cross section is the new root canal file working effect of rectangle, C1 is cutting point, and C2 is set using bias The chip space formed by two other angle not on cutting circle is counted, C3 is cutting effect caused by root canal file work.It is transversal Face rectangle is designed with root canal file rotation center using eccentric, two other angle for not producing cutting is reached bigger chip removal, So as to which chip removal ability is stronger during root canal file use, is cut in the course of work and chip removal is carried out simultaneously, root control is bright for rate It is aobvious to improve.

Preferred embodiment of the present utility model is the foregoing is only, is not departing from the premise of the spirit and scope of the utility model Under, equivalent changes and modifications that the technical staff of the industry is done, all belong to the covering scope of the utility model patent protection.

Claims

1. a kind of new root canal file file body, files body front end helically centrum shape, it is characterised in that the shape of cross section of spiral centrum Designed with file body pivot using eccentric at center.

2. a kind of new root canal file file body according to claim 1, it is characterised in that file body is molded using overall processing.

A kind of 3. new root canal file file body according to claim 1 or 2, it is characterised in that the cross section shape of spiral centrum Shape is triangle.

A kind of 4. new root canal file file body according to claim 1 or 2, it is characterised in that the cross section shape of spiral centrum Shape is quadrangle.

5. a kind of new root canal file file body according to claim 1 or 2, it is characterised in that the cross section of blade workspace is Rectangle, for only two adjacent cutting points on cutting circle, the angle not on cutting circle forms chip space on the rectangle of cross section, Body is filed during Clinical practice, cutting and chip removal are carried out simultaneously.