CN204446150U - Convex nickel-titanium instruments - Google Patents
Convex nickel-titanium instruments Download PDFInfo
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- CN204446150U CN204446150U CN201420832556.2U CN201420832556U CN204446150U CN 204446150 U CN204446150 U CN 204446150U CN 201420832556 U CN201420832556 U CN 201420832556U CN 204446150 U CN204446150 U CN 204446150U
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- convex
- nickel
- titanium instruments
- root canal
- cone
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Abstract
The utility model discloses a kind of convex nickel-titanium instruments, comprise bar portion and grind cone with three helical form work edge lines, it, by changing root canal file cross sectional shape, can adapt to different patient, improves root canal file at circumference cutting intensity and axial fatigue strength.Adopt convex nickel-titanium instruments can improve the efficiency of root canal, reduce body and suffering from the rate that fractures in tooth.
Description
Technical field
This utility model relates to type medical instrument for dental use trouble tooth being carried out to root canal.
Background technology
Root canal is the downright bad material by removing in root pipe, carry out suitable sterilization, root canal filling, to remove root pipe content to the pessimal stimulation of tip of a root surrounding tissue, prevent periapical lesion or promote periapical lesion healing, root canal is the most frequently used and the most effective Therapeutic Method at present.
There is following technological deficiency in existing root canal file:
1. when pair root pipe operates, root canal file circumference spiral easily untwists, and operates by force and also can make apparatus generation axial rift.
2., in Clinical practice, root canal file easily produces fatigue fracture.
3., because nickel-titanium instruments of the prior art is in project organization and the irrational situation of shape, in the use of odontologist, easily bring the hidden danger that body fractures in trouble tooth.
Utility model content
This utility model, for the above-mentioned defect existed in prior art, provides a kind of and can improve circumferential cutting power and the axial fatigue intensity of root canal file by changing original conic section shape, thus the hidden danger that reduction body fractures in string tooth.
Technique effect of the present utility model is as follows:
Convex nickel-titanium instruments of the present utility model, its sideline grinding the cross section of cone is convex, this just changes to grind the shape between the adjacent sword line of cone, and the face that flattens connects for convex globoidal connects, thus improves the cutting power of work edge line and the bulk strength of cone significantly.
Accompanying drawing explanation
Fig. 1 is convex nickel-titanium instruments of the present utility model.
Fig. 2 is that the convex triangle of convex nickel-titanium instruments compares schematic diagram with the cross section of equilateral triangle
In figure, labelling lists as follows:
1. grind the convex triangular cross section of cone; 2. cutting edge; 3. convex sideline; 4. grind the equilateral triangle cross section of cone; 5. straight flange line; 6. bar portion; 7. grind cone.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Design concept of the present utility model is: 1. from file type, and it should have good cutting edge, can have cutting force efficiently.2. its material is Nickel-titanium alloy for medical purpose, can be applicable to the operation of crooked root tube.3. from forming materials and body processing, technology controlling and process is carried out to it, improve its fatigue strength further.
Enforcement of the present utility model as shown in Figure 1, the cross section 1 of cone is ground as can be seen from convex triangle, root canal file has three helical form work edge lines, i.e. cutting edge 2, three cutting edges 2 form three summits of convex triangular cross section 1, are convex sideline 3 between adjacent vertex, this just changes the shape grinding joint face between the adjacent sword line of cone, the face that flattens connects for convex globoidal connects, thus enhances blade cutting hardness, improves the bulk strength of cone.
This utility model tool has the following advantages:
1. this utility model is because the medical Ultimum Ti adopted, have employed unique profile design simultaneously, make it have good pliability, it can not produce larger restoring force in crooked root tube and restoring force harmony is good, thus root pipe can not be destroyed, there is not flexural deformation vertically simultaneously.
2. because the tooth shape of uniqueness designs, the intensity of its blade is increased, cutting power strengthens, and improves work efficiency, reduces body and is suffering from the risk fractureed in tooth.
3. due to material property and the handling flexibly of root canal file uniqueness, when ensureing every advantage of its favourable pipe operation, provide simultaneously body in the overload that improper operation brings or cross tired use time uncoiling deformability.
The above, be only preferred implementation of the present utility model.It should be pointed out that for a person skilled in the art, according to the principle of invention that this utility model is same, many distortion and improvement can also be made, but these all fall into protection domain of the present utility model.
Claims (4)
1. convex nickel-titanium instruments, comprises bar portion and grinds cone with three helical form work edge lines, it is characterized in that: the described cross section grinding cone is convex polygon.
2. convex nickel-titanium instruments according to claim 1, is characterized in that: described convex polygon is convex triangle.
3. convex nickel-titanium instruments according to claim 2, is characterized in that: described convex triangle sideline is convex.
4. convex nickel-titanium instruments according to claim 1, is characterized in that: described bar portion and grind cone and be integrated, and adopts the medical Ultimum Ti material through handling flexibly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420832556.2U CN204446150U (en) | 2014-12-19 | 2014-12-19 | Convex nickel-titanium instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420832556.2U CN204446150U (en) | 2014-12-19 | 2014-12-19 | Convex nickel-titanium instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204446150U true CN204446150U (en) | 2015-07-08 |
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ID=53653105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420832556.2U Active CN204446150U (en) | 2014-12-19 | 2014-12-19 | Convex nickel-titanium instruments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204446150U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936080A (en) * | 2018-04-10 | 2020-11-13 | 马尼株式会社 | Dental file |
| CN114452019A (en) * | 2022-02-08 | 2022-05-10 | 中山大学附属口腔医院 | Root canal file system |
| US11890155B2 (en) | 2018-08-29 | 2024-02-06 | Mani, Inc. | Dental file |
-
2014
- 2014-12-19 CN CN201420832556.2U patent/CN204446150U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111936080A (en) * | 2018-04-10 | 2020-11-13 | 马尼株式会社 | Dental file |
| CN111936080B (en) * | 2018-04-10 | 2022-02-18 | 马尼株式会社 | Dental file |
| US11504211B2 (en) | 2018-04-10 | 2022-11-22 | Mani, Inc. | Dental file |
| US11890155B2 (en) | 2018-08-29 | 2024-02-06 | Mani, Inc. | Dental file |
| CN114452019A (en) * | 2022-02-08 | 2022-05-10 | 中山大学附属口腔医院 | Root canal file system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |