CN2559328Y - Nickel-titanium alloy dental root file - Google Patents
Nickel-titanium alloy dental root file Download PDFInfo
- Publication number
- CN2559328Y CN2559328Y CN 02266434 CN02266434U CN2559328Y CN 2559328 Y CN2559328 Y CN 2559328Y CN 02266434 CN02266434 CN 02266434 CN 02266434 U CN02266434 U CN 02266434U CN 2559328 Y CN2559328 Y CN 2559328Y
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- CN
- China
- Prior art keywords
- file
- spiral
- tooth
- root
- file body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
A nickel-titanium alloy tooth root file comprises a tapered file and an operating grip. Wherein, the operating grip is fixed on an upper end of the tapered file. The file is characterized in that: The tapered file is circumferentially arranged with a spiral and trapezoid cutting groove from bottom to top until the cutting groove exceeds half height of the tapered file. The utility model is made from nickel-titanium alloy, thus ensuring high elasticity, flexibility and corrosion resistance. In addition, the spiral and trapezoid cutting groove on the file provides high filing strength. An arch tapered lower end of the tapered file can protect dental canal from puncture more effectively and ensure therapy effect. Therefore, the utility model provides good therapy effect and strong safety.
Description
(1) technical field
This utility model relates to a kind of tooth medical device, relates in particular to a kind of Nitinol root of the tooth file.
(2) background technology
General dentist needs when dredging the tooth pulp canal to patient with the root file, because the shape of root pipe is very complicated, the root pipe that has C shape, S shape and calcified material to stop up brings great difficulty to clinical manipulation.In clinical manipulation, the doctor must go into the rotation of root file, and straight line is pulled out then, removes the calcified material on the tube wall.Generally adopt rustless steel root file at present, because its rigidity is too big, not flexible, elasticity and flexibility are limited, often penetrate the pulp cavity of tooth, bring very big misery to patient.
(3) summary of the invention
The purpose of this utility model is to provide a kind of Nitinol root of the tooth file, and it not only has high elasticity, flexibility and suitable corrosion resistance, and result of use is good, high safety.
A kind of Nitinol root of the tooth file provided by the utility model, comprise conical file body and operating grip, operating grip is fixed on the upper end of conical file body, be characterized in: on the side face of described conical file body, dish is established the trapezoidal cutting slot of spiral from bottom to top, until this taper shape file height degree more than 1/2nd till.
Above-mentioned Nitinol root of the tooth file, wherein, the spiral spacer of the trapezoidal cutting slot of spiral of conical file body is greater than the cutting slot width.
Above-mentioned Nitinol root of the tooth file, wherein, the tip of conical file body lower end is the circular arc head.
Above-mentioned Nitinol root of the tooth file, wherein, the bottom land both sides of the trapezoidal cutting slot of spiral of conical file body are circular arc.
Above-mentioned Nitinol root of the tooth file, wherein, the groove depth of the trapezoidal cutting slot of spiral of conical file body be with the stage casing be the boundary to two ends by being deep to shallow spiral extension.
Above-mentioned Nitinol root of the tooth file wherein, also is provided with an aperture on operating grip.
Above-mentioned Nitinol root of the tooth file wherein, also is provided with a pad movable up and down on the top of taper shape file body.
Adopted above-mentioned technical solution; and make with nickel-titanium alloy material; this utility model not only has high elasticity, flexibility and suitable corrosion resistance; and dish is established the trapezoidal cutting slot of spiral on the file body; filing intensity height, in addition, the tip of conical file body lower end is the circular arc head; more can effectively protect root canal not bored a hole, guarantee therapeutic effect.Therefore, this utility model result of use is good, high safety.
(4) description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the cutaway view Amplified image of the trapezoidal cutting slot of spiral of conical file body of the present utility model;
Fig. 3 is user mode figure of the present utility model.
(5) specific embodiment
As Figure 1-3, this utility model, promptly a kind of Nitinol root of the tooth file by special processing technique, is made the root of the tooth file of different size diameter with nickel-titanium alloy material.Comprise conical file body 1 and operating grip 2, operating grip 2 is fixed on the upper end of conical file body 1, is convenient to the operation rotation and lifts filing.On the side face of this taper shape file body 1, dish is established the trapezoidal cutting slot 11 of spiral from bottom to top, until this taper shape file body 1 height more than 1/2nd till.
The spiral spacer h of the trapezoidal cutting slot 11 of spiral of conical file body 1 is greater than cutting slot width a, to increase filing intensity.
The tip 12 of conical file body 1 lower end is the circular arc head, so more can effectively protect root canal not bored a hole, and guarantees therapeutic effect.
The bottom land both sides 111 of the trapezoidal cutting slot 11 of spiral of conical file body 1 are circular arc, and to disperse trapezoidal cutting slot internal stress, it is easy and convenient to operate.
The groove depth of the trapezoidal cutting slot 11 of spiral of conical file body 1 is to be that the boundary is shallow to the two ends spiral extension by being deep to stage casing L, to disperse the elastic stress at file body 1 two ends, guarantees the favorable elasticity and the flexible uniformity of root of the tooth file.
Also be provided with an aperture 21 on the operating grip 2, be used for threading and be exposed at outside the oral cavity, in case accidentally, the root of the tooth file slips into the insurance safety vent of throat.
Top at taper shape file body 1 also is provided with a pad 3 movable up and down, is used for measuring the tooth pipe degree of depth, to reach therapeutic purposes.
Claims (7)
1. a Nitinol root of the tooth is filed, comprise conical file body and operating grip, operating grip is fixed on the upper end of conical file body, it is characterized in that: on the side face of described conical file body, dish is established the trapezoidal cutting slot of spiral from bottom to top, until this taper shape file height degree more than 1/2nd till.
2. a kind of Nitinol root of the tooth file according to claim 1, it is characterized in that: the spiral spacer of the trapezoidal cutting slot of spiral of described conical file body is greater than the cutting slot width.
3. a kind of Nitinol root of the tooth file according to claim 1 is characterized in that: the tip of described conical file body lower end is the circular arc head.
4. a kind of Nitinol root of the tooth file according to claim 1, it is characterized in that: the bottom land both sides of the trapezoidal cutting slot of spiral of described conical file body are circular arc.
5. a kind of Nitinol root of the tooth file according to claim 1, it is characterized in that: the groove depth of the trapezoidal cutting slot of spiral of described conical file body is to be that the boundary is shallow to the two ends spiral extension by being deep to the stage casing.
6. a kind of Nitinol root of the tooth file according to claim 1 is characterized in that: also be provided with an aperture on described operating grip.
7. a kind of Nitinol root of the tooth file according to claim 1, it is characterized in that: the top at described conical file body also is provided with a pad movable up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02266434 CN2559328Y (en) | 2002-08-21 | 2002-08-21 | Nickel-titanium alloy dental root file |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02266434 CN2559328Y (en) | 2002-08-21 | 2002-08-21 | Nickel-titanium alloy dental root file |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2559328Y true CN2559328Y (en) | 2003-07-09 |
Family
ID=33732250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02266434 Expired - Fee Related CN2559328Y (en) | 2002-08-21 | 2002-08-21 | Nickel-titanium alloy dental root file |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2559328Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917826B (en) * | 2004-01-26 | 2012-07-18 | 雷登特-诺娃有限公司 | Self adjusting instrument |
| CN109498187A (en) * | 2018-12-28 | 2019-03-22 | 常州迈帝浦医疗科技有限公司 | Dental root file |
-
2002
- 2002-08-21 CN CN 02266434 patent/CN2559328Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1917826B (en) * | 2004-01-26 | 2012-07-18 | 雷登特-诺娃有限公司 | Self adjusting instrument |
| CN109498187A (en) * | 2018-12-28 | 2019-03-22 | 常州迈帝浦医疗科技有限公司 | Dental root file |
| CN109498187B (en) * | 2018-12-28 | 2024-02-09 | 常州迈帝浦医疗科技有限公司 | Tooth root file |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |