CN204484355U - A kind of Dental corona breaking needle - Google Patents
A kind of Dental corona breaking needle Download PDFInfo
- Publication number
- CN204484355U CN204484355U CN201520061804.2U CN201520061804U CN204484355U CN 204484355 U CN204484355 U CN 204484355U CN 201520061804 U CN201520061804 U CN 201520061804U CN 204484355 U CN204484355 U CN 204484355U
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- China
- Prior art keywords
- needle
- needle handle
- fixed cover
- handle
- breaking
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model discloses a kind of Dental corona breaking needle, comprise syringe needle and needle handle, described needle handle comprises the first needle handle and the second needle handle, one end of first needle handle is provided with screw thread, the other end is connected with the second needle handle by fixed cover, and relative first needle handle of the second needle handle stretches, described fixed cover is equipped with lock sleeve, described lock sleeve to rotate and for locking the second needle handle relative to described fixed cover, described fixed cover is provided with external screw thread, and described lock sleeve is provided with the female thread matched with external screw thread on described fixed cover; Or one end of described needle handle is provided with screw thread, and the other end is provided with draw-in groove, the syringe needle of described different length and draw-in groove coordinate grafting.The beneficial effects of the utility model are, the locking mode coordinated by fixed cover and lock sleeve, is locked to the needle handle of two sections, realizes length adjustment on the one hand, also can avoid in use occurring because of the phenomenon loosely causing needle handle to retract that locks; Also can by the syringe needle of different length being realized the adjustment of length.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments of the department of stomatology, especially a kind of Dental corona breaking needle.
Background technology
Block teeth refers to tooth in jawbone because position is improper, can not be erupted into normal occlusion position.Modal impacted tooth is mandibular third molar, is secondly maxillary third molar and eye tooth.According to statistics, in adult, the incidence rate of impacted tooth is 20%.Between this impacted tooth and the gingiva covering above it, be easy to shelter evil people and countenance evil practices, multiply antibacterial, cause halitosis, dental caries bad, when passive protective physical fitness declines, usually can be inflamed.Due to impacted tooth malposition, stopped by adjacent teeth, some also may be embedded by osseous tissue completely.Therefore the resistance of periphery tooth and osseous tissue, make pulling out of impacted tooth more difficult than other teeth, existing method is, use the instrument such as chisel, hammer, what covered by gingiva will cut gingiva, and what embedded by bone will remove bone, and that is blocked by adjacent teeth will rive corona, burst is pulled out, then pulls out remaining root of the tooth.Existing methodical defect is in the process chiseling corona on the one hand, the strength needed is larger, the normal situation occurring damage mandibular joint, on the other hand, pull out impacted tooth time-consuming longer, in art, postoperative contingent complication is also more, as hemorrhage, be completely cured, adjacent teeth damage, postoperative numbness of lower lip, dry socket etc.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, provides a kind of Dental corona breaking needle, does not damage mandibular joint when disconnecting corona, and adjustable in length.
For achieving the above object, this utility model adopts following technical proposals:
A kind of Dental corona breaking needle, comprise syringe needle and needle handle, described syringe needle is located at one end of needle handle, described needle handle comprises the first needle handle and the second needle handle, one end of first needle handle is provided with screw thread, the other end is connected with the second needle handle by fixed cover, and relative first needle handle of the second needle handle stretches, described fixed cover is equipped with lock sleeve, described lock sleeve to rotate and for locking the second needle handle relative to described fixed cover, described fixed cover is provided with external screw thread, and described lock sleeve is provided with the female thread matched with external screw thread on described fixed cover.
The length of described first needle handle is equal with the length of the second needle handle.
A kind of Dental corona breaking needle, comprise syringe needle and needle handle, one end of described needle handle is provided with screw thread, and the other end is provided with draw-in groove, and the syringe needle of described different length and draw-in groove coordinate grafting.
The shape of described draw-in groove is regular polygon.
The length of described syringe needle is 1 ~ 40mm.
The length of described Dental corona breaking needle is 210 ~ 440mm.
Described syringe needle is linear type or arc, can select according to the shape of corona.
Described syringe needle is provided with screw thread or burr.
During use, Dental corona breaking needle is arranged in dental handpiece, again Dental corona breaking needle is placed in just to the corona position of block teeth, can easier by fracture of the dental crown, in use procedure, can, by regulating the syringe needle of lock sleeve or replacing different length, regulate the length of Dental corona breaking needle to suitable length, simultaneously less on the impact of mandibular joint, can not mandibular joint be damaged.
The beneficial effects of the utility model are,
1, the locking mode that coordinated by fixed cover and lock sleeve of this utility model, is locked to the needle handle of two sections, realizes length adjustment on the one hand, also can avoid in use occurring because of the phenomenon loosely causing needle handle to retract that locks; Also can by the syringe needle of different length being realized the adjustment of length;
2, this utility model according to the growth position of block teeth, can remove and install the syringe needle of different size model and takes at any time, and can effectively reduce and avoid the frequent problem such as inefficiency, length consuming time changed Dental corona breaking needle and bring in use procedure, practicality is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment 1;
Fig. 2 is the structural representation of this utility model embodiment 2;
Fig. 3 is the structural representation of draw-in groove in this utility model embodiment 2;
Fig. 4 is the structural representation of arc syringe needle in this utility model;
Wherein, 1. the first needle handle, 2. the second needle handle, 3. syringe needle, 4. lock sleeve, 5. fixed cover, 6. screw thread, 7. needle handle, 8. draw-in groove.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Embodiment 1
A kind of Dental corona breaking needle, as shown in Figure 1, comprise syringe needle 3 and needle handle, described syringe needle 1 is located at one end of needle handle, described needle handle comprises the first needle handle 1 and the second needle handle 2, one end of first needle handle 1 is provided with screw thread 6, the other end is connected with the second needle handle 2 by fixed cover 5, and relative first needle handle 1 of the second needle handle 2 stretches, described fixed cover 5 is equipped with lock sleeve 4, described lock sleeve 4 to rotate and for locking the second needle handle 2, described fixed cover 5 is provided with external screw thread relative to described fixed cover 5, and described lock sleeve 4 is provided with the female thread matched with external screw thread on described fixed cover 5.
The length of described first needle handle 1 is equal with the length of the second needle handle 2.
The length of described Dental corona breaking needle is 210 ~ 440mm.
Described syringe needle 3 is linear type or arc, as shown in Figure 4, can select according to the shape of corona.
Described syringe needle 3 is provided with screw thread or burr.
During use, Dental corona breaking needle is arranged in dental handpiece, again Dental corona breaking needle is placed in just to the corona position of block teeth, start mobile phone, easier by fracture of the dental crown, in use procedure, the length of Dental corona breaking needle can be regulated to suitable length by regulating lock sleeve 4, simultaneously less on the impact of mandibular joint, can not mandibular joint be damaged.
Embodiment 2
A kind of Dental corona breaking needle, as shown in Figures 2 and 3, comprise syringe needle and needle handle 7, one end of described needle handle 7 is provided with screw thread, and the other end is provided with draw-in groove 8, and syringe needle and the draw-in groove 8 of described different length coordinate grafting.
The shape of described draw-in groove 8 is regular hexagon.
The length of described syringe needle is 1 ~ 40mm.
The length of described Dental corona breaking needle is 210 ~ 440mm.
Described syringe needle is linear type or arc, can select according to the shape of corona.
Described syringe needle is provided with screw thread or burr.
During use, Dental corona breaking needle is arranged in dental handpiece, again Dental corona breaking needle is placed in just to the corona position of block teeth, start mobile phone, easier by fracture of the dental crown, in use procedure, can by changing the syringe needle of different length, regulate the length of Dental corona breaking needle to suitable length, simultaneously less on the impact of mandibular joint, can not mandibular joint be damaged.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to this utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (8)
1. a Dental corona breaking needle, comprise syringe needle and needle handle, it is characterized in that, described syringe needle is located at one end of needle handle, described needle handle comprises the first needle handle and the second needle handle, one end of first needle handle is provided with screw thread, the other end is connected with the second needle handle by fixed cover, and relative first needle handle of the second needle handle stretches, described fixed cover is equipped with lock sleeve, described lock sleeve to rotate and for locking the second needle handle, described fixed cover is provided with external screw thread relative to described fixed cover, and described lock sleeve is provided with the female thread matched with external screw thread on described fixed cover.
2. a kind of Dental corona breaking needle as claimed in claim 1, is characterized in that, the length of described first needle handle is equal with the length of the second needle handle.
3. a Dental corona breaking needle, comprises syringe needle and needle handle, it is characterized in that, one end of described needle handle is provided with screw thread, and the other end is provided with draw-in groove, and the syringe needle of different length and draw-in groove coordinate grafting.
4. a kind of Dental corona breaking needle as claimed in claim 3, is characterized in that, the shape of described draw-in groove is regular polygon.
5. a kind of Dental corona breaking needle as claimed in claim 3, is characterized in that, the length of described syringe needle is 1 ~ 40mm.
6. a kind of Dental corona breaking needle as described in claim 1 or 3, is characterized in that, the length of described Dental corona breaking needle is 210 ~ 440mm.
7. a kind of Dental corona breaking needle as described in claim 1 or 3, is characterized in that, described syringe needle is linear type or arc.
8. a kind of Dental corona breaking needle as described in claim 1 or 3, is characterized in that, described syringe needle is provided with screw thread or burr.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520061804.2U CN204484355U (en) | 2015-01-27 | 2015-01-27 | A kind of Dental corona breaking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520061804.2U CN204484355U (en) | 2015-01-27 | 2015-01-27 | A kind of Dental corona breaking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204484355U true CN204484355U (en) | 2015-07-22 |
Family
ID=53563654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520061804.2U Expired - Fee Related CN204484355U (en) | 2015-01-27 | 2015-01-27 | A kind of Dental corona breaking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204484355U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107303201A (en) * | 2016-04-22 | 2017-10-31 | 合镒技研股份有限公司 | Dental tool extending structure |
-
2015
- 2015-01-27 CN CN201520061804.2U patent/CN204484355U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107303201A (en) * | 2016-04-22 | 2017-10-31 | 合镒技研股份有限公司 | Dental tool extending structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20160127 |
|
| EXPY | Termination of patent right or utility model |