CN104055585A - Dental nerve broach - Google Patents
Dental nerve broach Download PDFInfo
- Publication number
- CN104055585A CN104055585A CN201310091953.9A CN201310091953A CN104055585A CN 104055585 A CN104055585 A CN 104055585A CN 201310091953 A CN201310091953 A CN 201310091953A CN 104055585 A CN104055585 A CN 104055585A
- Authority
- CN
- China
- Prior art keywords
- needle
- burr
- needle guard
- pin silk
- broach
- 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.)
- Pending
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Abstract
The invention discloses a dental nerve broach, belongs to a medical instrument, and solves the problems that the rotary angle of the nerve broach is small, the adjusting amplitude is large, the nerve broach easily damages an oral cavity and/or burrs at a needle tip easily stab the oral cavity and the inner wall of a dental pulp cavity. The dental nerve broach comprises a needle wire, a needle sleeve and a screw cap; an arc-shaped needle tip is arranged at one end of the needle wire; a burr region is arranged at the front end of the needle tip; a thread is arranged at the other end of the needle wire; after the needle sleeve is sleeved in a burr region of the needle wire, the front part of the needle sleeve is clamped with the needle wire; the screw cap and the thread on the needle wire are matched to lock the needle wire and the needle sleeve. Burr tips of the burrs of the burr region are concave toward the inner side. According to the nerve broach disclosed by the utility model, the needle tip can rotate for 360 degrees; the dental nerve broach is simple and accurate to operate, has small damages to the oral cavity and is safer to use.
Description
Technical field
The invention belongs to medical instruments, what be specifically related to is a kind of dentistry barbed broach.
Background technology
At present, in treatment pulpitis and apicitis process, pulp tissue or the taking-up that need to use barbed broach to remove degeneration necrosis in root pipe are retained in the cotton sth. made by twisting in root pipe.Straight type barbed broach needs constantly to adjust angle in use to comply with the direction of root pipe, and the angle adjustment of barbed broach is not in place, can cause pulp tissue residual, affects the effect of root canal.To this Chinese patent ZL201120336202.5 Novel dental nerve broach, straight type barbed broach is improved, this barbed broach mainly comprises needle body, needle point, needle body one end is provided with needle point, the other end and the handle of needle body are threaded connection, on needle body and near needle point place, be provided with burr, needle point bends to arc.Although this Novel dental nerve broach overcomes some defects of straight type barbed broach, but while using because of it, handle and needle body are one, by adjusting handle position, adjust needle body position, the angle of rotatable handle is because being subject to oral cavity space restriction very little, therefore need to significantly regulate while adjusting tip position, increase the risk that other position of boil on the nape opposite the mouth intracavity portion damages.In addition, the burr at barbed broach needle point place is tiny and sharp, when going deep into and take out oral cavity, easily causes barbed broach to stab oral cavity and pulp cavity inwall.
Summary of the invention
The problem to be solved in the present invention is that in prior art, the barbed broach anglec of rotation is little, and the amplitude of accommodation is large, and the burr at easy damaged oral cavity and/or needle point place is easily stabbed the problem of oral cavity and pulp cavity inwall.
The present invention is for realizing above object, take following scheme: dentistry barbed broach, comprise pin silk, needle guard and nut, one end of pin silk arranges arc needle point, needle point front end is provided with burr district, and the pin silk other end is provided with screw thread, after needle guard is enclosed within Zhen Si burr district, needle guard is anterior to be engaged with pin silk, and the threaded engagement on nut and pin silk is with locking pin silk and needle guard.
The thorn point of burr district burr is recessed to the inside, to reduce injury other positions, oral cavity.
Needle guard front end 10mm arranges bent angle and is 135 °, and rear end is provided with floating-point.
The invention has the beneficial effects as follows: the structure that (1) adopts pin silk and needle guard to coordinate, make the barbed broach needle point can 360 ° of rotations, simple to operate, accurate, little to oral cavity injury, be applicable to the accurate treatment of oral cavity odontopathy; (2) umbilicate type stings the injury of sharp structure decrease to other positions, oral cavity, uses safer.
Accompanying drawing explanation
The pin silk structural representation of Fig. 1 barbed broach of the present invention;
The pin silk structure A partial enlarged view of Fig. 2 barbed broach of the present invention;
The assembling schematic diagram of Fig. 3 barbed broach of the present invention;
The B partial enlarged view of the installation diagram of Fig. 4 barbed broach of the present invention;
The structural representation of the needle guard of Fig. 5 barbed broach of the present invention;
The C of the needle guard of Fig. 6 barbed broach of the present invention is to view;
In figure: 1 pin silk, 11 burr districts, 12 burrs, 13 boss, 14 rib projections, 15 screw threads, 16 thorn points, 2 needle guards, 21 needle guard chamber front ends, 22 grooves, 3 nuts.
Specific embodiment
As shown in accompanying drawing 1-Fig. 6, the dentistry barbed broach of the preferred embodiment of the present invention, comprises pin silk 1, needle guard 2 and nut 3.One end of pin silk arranges arc needle point, and needle point front end is provided with burr district 11, and the other end is provided with screw thread 15.Needle point front end 10 ~ 15mm is provided with burr, at rear portion, burr district, is provided with a circle fixing lug boss 13, and with four road rib projection 14 separation surroundings, rib projection 14 coordinates with the groove 22 of needle guard front end intracavity, with locking pin silk, does not rotate.
Pin silk 1 is installed in needle guard 2, the boss of pin silk 13 and needle guard front end 21 is matched, and guarantee that rib projection 14 matches with the groove 22 in needle guard chamber, and then lock nut 3.When treatment, hand-held barbed broach of working good gos deep into oral cavity, pin silk 1 enters after root pipe, nut 3 is outwarded winding, and outside oral cavity, slightly extract needle guard 2 out, then hand-held pin silk 1 rear end rotates gently, so that the pulp tissue of the degeneration necrosis in root pipe or cotton sth. made by twisting are wound on pin silk burr 12, as shown in Figure 2, recessed minimizing is to the inside to the loss of organizing for the structure of burr thorn point 16.Finally needle guard is pushed a little, guarantee that pin silk rib projection 14 matches with the groove 23 in needle guard chamber, after lock nut, take out barbed broach, the pulp tissue of the degeneration necrosis in root pipe or cotton sth. made by twisting can be removed, reach therapeutic effect.
Claims (6)
1. dentistry barbed broach, it is characterized in that, comprise pin silk, needle guard and nut, one end of pin silk arranges arc needle point, needle point front end is provided with burr district, and the pin silk other end is provided with screw thread, after needle guard is enclosed within Zhen Si burr district, needle guard is anterior to be engaged with pin silk, and the threaded engagement on nut and pin silk is with locking pin silk and needle guard.
2. dentistry barbed broach according to claim 1, is characterized in that, the thorn point of burr district burr is recessed to the inside.
3. dentistry barbed broach according to claim 1 and 2, is characterized in that, needle guard front end 10mm arranges bent angle and is 135 °.
4. dentistry barbed broach according to claim 1 and 2, is characterized in that, needle guard rear end is provided with floating-point.
5. dentistry barbed broach according to claim 1 and 2, is characterized in that, needle point front end 10 ~ 15mm is provided with burr.
6. dentistry barbed broach according to claim 1 and 2, is characterized in that, rear portion, Zhen Si burr district is provided with a circle fixing lug boss, and with four road rib projection separation surroundings, the groove fit of rib projection and needle guard front end intracavity, does not rotate with locking pin silk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310091953.9A CN104055585A (en) | 2013-03-21 | 2013-03-21 | Dental nerve broach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310091953.9A CN104055585A (en) | 2013-03-21 | 2013-03-21 | Dental nerve broach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104055585A true CN104055585A (en) | 2014-09-24 |
Family
ID=51543713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310091953.9A Pending CN104055585A (en) | 2013-03-21 | 2013-03-21 | Dental nerve broach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104055585A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105963030A (en) * | 2016-04-27 | 2016-09-28 | 成都绿迪科技有限公司 | Improved nerve broach for dental department |
| CN111166508A (en) * | 2020-02-13 | 2020-05-19 | 中南大学 | Manual microscopic root canal brush |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209958Y (en) * | 1994-10-12 | 1995-10-18 | 邵礼芳 | Dental straight hand-piece |
| US6343929B1 (en) * | 2001-01-22 | 2002-02-05 | Ultradent Products, Inc. | Endodontic irrigator tips having fiber covered cannulas and related methods |
| CN2585635Y (en) * | 2002-11-21 | 2003-11-12 | 上海阳洲机电科技服务有限公司 | Special syringe needle for dentistry |
| CN202223366U (en) * | 2011-09-08 | 2012-05-23 | 孙悦 | Novel dental nerve broach |
| CN203226908U (en) * | 2013-03-21 | 2013-10-09 | 山东威高集团医用高分子制品股份有限公司 | Dental nerve broach |
-
2013
- 2013-03-21 CN CN201310091953.9A patent/CN104055585A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2209958Y (en) * | 1994-10-12 | 1995-10-18 | 邵礼芳 | Dental straight hand-piece |
| US6343929B1 (en) * | 2001-01-22 | 2002-02-05 | Ultradent Products, Inc. | Endodontic irrigator tips having fiber covered cannulas and related methods |
| CN2585635Y (en) * | 2002-11-21 | 2003-11-12 | 上海阳洲机电科技服务有限公司 | Special syringe needle for dentistry |
| CN202223366U (en) * | 2011-09-08 | 2012-05-23 | 孙悦 | Novel dental nerve broach |
| CN203226908U (en) * | 2013-03-21 | 2013-10-09 | 山东威高集团医用高分子制品股份有限公司 | Dental nerve broach |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105963030A (en) * | 2016-04-27 | 2016-09-28 | 成都绿迪科技有限公司 | Improved nerve broach for dental department |
| CN111166508A (en) * | 2020-02-13 | 2020-05-19 | 中南大学 | Manual microscopic root canal brush |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140924 |