JP2519986Y2 - Drilling tool for artificial root implantation - Google Patents
Drilling tool for artificial root implantationInfo
- Publication number
- JP2519986Y2 JP2519986Y2 JP4385990U JP4385990U JP2519986Y2 JP 2519986 Y2 JP2519986 Y2 JP 2519986Y2 JP 4385990 U JP4385990 U JP 4385990U JP 4385990 U JP4385990 U JP 4385990U JP 2519986 Y2 JP2519986 Y2 JP 2519986Y2
- Authority
- JP
- Japan
- Prior art keywords
- blade portion
- hole
- guide
- drilling tool
- guide bit
- 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
Links
Description
【考案の詳細な説明】 「技術分野」 本考案は、人工歯根等を埋込むために、顎骨などに孔
をあけるツールに関する。[Detailed Description of the Invention] [Technical Field] The present invention relates to a tool for making a hole in a jawbone or the like for implanting an artificial tooth root or the like.
「従来技術およびその問題点」 人工歯根等を埋込むために顎骨に孔を穿つときには、
従来、棒状のドリルビットが使用されていた。ところ
が、この種ドリルビットで顎骨に孔を穿つときに、最初
から所望の径の大径ドリルビットを使うと、抵抗が大き
い。"Prior art and its problems" When making a hole in the jawbone to implant an artificial tooth root, etc.,
Conventionally, a rod-shaped drill bit has been used. However, when drilling a hole in the jawbone with this kind of drill bit, if a large-diameter drill bit having a desired diameter is used from the beginning, the resistance is large.
そこで、先ず細径のドリルビットにより小径の孔を穿
ち、段階的に大径のドリルビットに代えて孔を拡大し、
最後に所望の大径のドリルビットを使用して所望の内径
の孔を穿つのが普通であった。Therefore, first drill a small diameter hole with a small diameter drill bit and gradually expand the hole instead of the large diameter drill bit,
Finally, it was common to drill holes of the desired inner diameter using the desired large diameter drill bit.
しかし、このようにドリルビットを取り替えながらの
複数回の施術は時間がかかりすぎる、などの問題があっ
た。However, there has been a problem that a plurality of treatments while exchanging the drill bit takes too much time.
そこで、筒状（中空）のドリルビット（トレパンまた
はトレフィンバー）が開発された。この筒状ドリルビッ
トは、筒状部の先端部に環状に中空の切削刃が形成され
ている。この筒状ドリルビットは、切削時の抵抗が小さ
いので、一回で大きな孔を穿つことが可能となる。Therefore, a cylindrical (hollow) drill bit (trepan or trephine bar) was developed. In this cylindrical drill bit, a hollow cutting blade is formed in an annular shape at the tip of the cylindrical portion. Since this cylindrical drill bit has a low resistance during cutting, it is possible to make a large hole at one time.
しかしながら、筒状ドリルビットの軸心は空間なの
で、正確な位置決めが困難であった。しかも、穿孔の初
期に筒状ドリルビットの先端がブレやすく、移動するの
で大径にすることができなかった。However, since the axial center of the cylindrical drill bit is a space, accurate positioning is difficult. Moreover, since the tip of the cylindrical drill bit easily moves at the initial stage of drilling and moves, the diameter cannot be increased.
「考案の目的」 本考案は、上記従来の問題に鑑みてなされたもので、
正確な位置決めが可能で、一回で所望の径の穴をあける
ことが可能な孔あけツールを提供することを目的とす
る。[Purpose of Invention] The present invention has been made in view of the above-mentioned conventional problems.
An object of the present invention is to provide a drilling tool capable of accurate positioning and capable of drilling a hole having a desired diameter at one time.
「考案の概要」 上記目的を達成するために本考案は、先端部に環状の
切削刃部を備えた中空筒状刃部と、この中空筒状刃部の
軸心に位置し、上記切削刃部から外方に突出するガイド
ビット部と、歯科用ハンドピース着脱部とを備えたこと
に特徴を有する。[Summary of the Invention] In order to achieve the above object, the present invention is directed to a hollow cylindrical blade portion having an annular cutting blade portion at its tip, and a hollow blade portion positioned at the axis of the hollow cylindrical blade portion. It is characterized in that it is provided with a guide bit portion protruding outward from the portion and a dental handpiece attaching / detaching portion.
この構成の孔あけツールによれば、ガイドビット部が
先ず顎骨等に当たるので、位置決め（心出し）が容易に
かつ確実にできる。しかも、ガイドビット部によってあ
けられたガイド孔がガイドビット部の軸受として作用す
るので、筒状刃部のぶれが無くなり、したがって筒状刃
部の径を大きくできる。According to the drilling tool having this configuration, the guide bit portion first contacts the jawbone or the like, so that positioning (centering) can be performed easily and reliably. Moreover, since the guide hole formed by the guide bit portion acts as a bearing for the guide bit portion, the tubular blade portion is prevented from moving, and therefore the diameter of the tubular blade portion can be increased.
「考案の実施例」 以下図示実施例に基づいて本考案を説明する。第１図
は、本考案の人工歯根埋入用孔あけツールの一実施例を
拡大して示す正面図、第２図は、第１図に示した実施例
の中央縦断面図である。[Embodiment of the Invention] The present invention will be described below with reference to illustrated embodiments. FIG. 1 is an enlarged front view of an embodiment of the artificial root implant drilling tool of the present invention, and FIG. 2 is a central longitudinal sectional view of the embodiment shown in FIG.
この人工歯根埋入用孔あけツール（以下「トレパン」
という。）10は、歯科用ハンドピースのチャック（図示
せず）に着脱するための、棒状の歯科用ハンドピース着
脱部11と、この着脱部11の先端に形成された細径のガイ
ドビット部13と、このガイドビット13に被せられて着脱
部11に嵌合固定され、着脱部11およびガイドビット部13
と同一軸心となる中空の筒状刃部15とを備えている。This artificial root implant tool (hereinafter referred to as "trepan")
Say. ) 10 is a rod-shaped dental handpiece attaching / detaching portion 11 for attaching / detaching to / from a chuck (not shown) of the dental handpiece, and a thin guide bit portion 13 formed at the tip of the attaching / detaching portion 11. The guide bit 13 is covered and fitted and fixed to the attaching / detaching portion 11, and the attaching / detaching portion 11 and the guide bit portion 13
And a hollow cylindrical blade portion 15 having the same axis.
ガイドビット部13の先端部には、錐部17またはねじが
形成され、筒状刃部15の先端部には、環状に切削刃19が
形成されている。ガイドビット部13の外径は、筒状刃部
15の内径よりもかなり小さく、ガイドビット部13と筒状
刃部15との間には、広い空間が形成されている。そして
ガイドビット部13の錐部17は、筒状刃部15の切削刃部19
から外方に突出している。A conical portion 17 or a screw is formed at the tip of the guide bit portion 13, and a cutting blade 19 is formed in an annular shape at the tip of the tubular blade portion 15. The outer diameter of the guide bit part 13 is the cylindrical blade
It is much smaller than the inner diameter of 15, and a wide space is formed between the guide bit portion 13 and the tubular blade portion 15. The conical portion 17 of the guide bit portion 13 is the cutting blade portion 19 of the tubular blade portion 15.
Protruding outward from.
筒状刃部15の先端部付近には、穿孔時に生理食塩水等
を注入するための孔21が複数個形成されている。A plurality of holes 21 for injecting physiological saline or the like at the time of punching are formed near the tip of the cylindrical blade portion 15.
また、筒状刃部15と着脱部11との嵌合固定部には、こ
れらが一体に回転するようにキー溝およびキーを設ける
か、あるいは横断面形状を多角形にしてある。なお、図
中23は、歯科用ハンドピースのチャックに装着するため
のラチェット部である。In addition, a key groove and a key are provided in the fitting and fixing portion of the tubular blade portion 15 and the attachment / detachment portion 11 so that they rotate integrally, or the cross-sectional shape is polygonal. In addition, reference numeral 23 in the drawing denotes a ratchet portion to be attached to the chuck of the dental handpiece.
次に、本トレパン10による穿孔の様子を、第3A図ない
し第3C図を参照して説明する。Next, the manner of perforation by the trepan pan 10 will be described with reference to FIGS. 3A to 3C.
このトレパン10は、従来のトレパン同様に歯科用ハン
ドピースに装着されて使用される。先行に際しては、先
ず、錐部17が顎骨31の穿孔部位の中心に押し当てられ、
回転駆動される。これにより、錐部17によりガイド孔33
があけられて、トレパン10による穿孔位置が決まる（第
3A図参照）。The trepan 10 is used by being attached to a dental handpiece like the conventional trepan. At the time of preceding, first, the conical portion 17 is pressed against the center of the perforation site of the jawbone 31,
It is driven to rotate. Thereby, the guide hole 33 is formed by the conical portion 17.
Is opened and the drilling position by the trepan 10 is determined (
(See Figure 3A).
さらに穿孔が進むと、切削刃部19が顎骨31に達し、切
削刃部19による筒状の切削が始まる。つまり、錐部17に
より中心に小径のガイド孔33があけられ、かつ切削刃部
19により所定径の孔35があけられる（第3B図参照）。When the drilling further proceeds, the cutting blade portion 19 reaches the jawbone 31, and the cylindrical cutting by the cutting blade portion 19 starts. In other words, the small diameter guide hole 33 is formed in the center by the conical portion 17 and the cutting blade portion
A hole 35 having a predetermined diameter is made by 19 (see FIG. 3B).
所定の深さの孔35があいたら、トレパン10が孔35から
引き抜かれ、穿孔が終了する（第3C図参照）。この状態
では、ガイド孔33と孔35との間に、筒状の顎骨37が残
る。残った筒状の顎骨37は折られて、必要により、例え
ば補填材として利用される。When the hole 35 having a predetermined depth is formed, the trepan 10 is pulled out from the hole 35 and the perforation is completed (see FIG. 3C). In this state, the cylindrical jaw bone 37 remains between the guide hole 33 and the hole 35. The remaining cylindrical jaw bone 37 is broken and used as a filling material, if necessary.
このように本実施例によれば、ガイドビット部13によ
り位置決めが確実になされるので、正確な穿孔が可能に
なる。しかも、ガイドビット部13によりガイド孔33が先
行してあけられ、このガイド孔33がガイドビット部13の
軸受となるので、トレパン10の振れがなくなり、したが
って筒状の切削刃部19により正確な穿孔が可能になり、
さらに切削刃部19の径をより大きくできる。As described above, according to the present embodiment, since the guide bit portion 13 ensures the positioning, accurate drilling is possible. Moreover, the guide hole 33 is opened in advance by the guide bit portion 13, and since the guide hole 33 serves as the bearing of the guide bit portion 13, the trepan 10 is prevented from swinging, and therefore the cylindrical cutting blade portion 19 makes it more accurate. Drilling is possible,
Further, the diameter of the cutting blade portion 19 can be increased.
また、本実施例では、筒状刃部15を着脱部11およびガ
イドビット部13とは別個に形成しているので、筒状刃部
15および着脱部11は共通にして、筒状刃部15の切削刃部
19の径を代えることにより異なる径のトレパンの製造が
可能になり、製造コストが下がる。Further, in this embodiment, the tubular blade portion 15 is formed separately from the attaching / detaching portion 11 and the guide bit portion 13, so that the tubular blade portion
15 and the attaching / detaching part 11 are common, and the cutting blade part of the cylindrical blade part 15
By changing the diameter of 19, trepanes with different diameters can be manufactured, and the manufacturing cost is reduced.
なお、本考案は、着脱部11、ガイドビット部13および
筒状刃部15を一体として形成してもよく、また、着脱部
11および筒状刃部15を一体として形成し、ガイドビット
部13を別体として形成してもよい。In the present invention, the attaching / detaching portion 11, the guide bit portion 13 and the tubular blade portion 15 may be integrally formed.
The 11 and the cylindrical blade portion 15 may be integrally formed, and the guide bit portion 13 may be separately formed.
「考案の効果」 以上の説明から明らかなように、本考案は、先端に環
状の切削刃部を備えた中空の筒状刃部の軸心に細径のガ
イドビット部が設けられ、かつこの細径のガイドビット
部の先端がこの筒状刃部から外方に突出しているので、
穿孔に際して、先ずガイドビット部により正確な位置決
めが可能となり、さらに、筒状刃部による穿孔に先行し
てガイドビット部による細径のガイド孔があけられ、こ
のガイド孔にガイドビット部が軸支されので、筒状刃部
の振れが無くなり、一度に大径の孔を穿つことができ
る。[Advantages of the Invention] As is clear from the above description, the present invention has a hollow cylindrical blade portion having an annular cutting blade portion at its tip and a small-diameter guide bit portion provided at the axial center thereof. Since the tip of the thin guide bit part projects outward from this cylindrical blade part,
At the time of drilling, the guide bit part enables accurate positioning. Furthermore, prior to the drilling by the tubular blade part, a guide hole with a small diameter is drilled by the guide bit part, and the guide bit part is pivotally supported in this guide hole. Therefore, the deflection of the cylindrical blade portion is eliminated, and a large-diameter hole can be drilled at one time.
第１図は、本考案の人工歯根埋入用孔あけツールの一実
施例の正面図、 第２図は、同実施例の中央縦断面図、 第3A図、第3B図および第3C図は、本実施例の孔あけツー
ルによる穿孔の様子を説明する断面図である。 10……トレパン、11……着脱部、13……ガイドビット
部、15……筒状刃部、７……錐部、19……切削刃部。FIG. 1 is a front view of an embodiment of the artificial root implant drilling tool of the present invention, FIG. 2 is a central longitudinal sectional view of the same embodiment, and FIGS. 3A, 3B and 3C are FIG. 6 is a cross-sectional view illustrating how a hole is punched by the drilling tool of the present embodiment. 10 …… Trepan, 11 …… Detachable part, 13 …… Guide bit part, 15 …… Cylindric blade part, 7 …… Conical part, 19 …… Cutting blade part.
Claims (2)
刃部と、 この中空筒状刃部の軸心に位置し、上記切削刃部から外
方に突出するガイドビット部と、 歯科用ハンドピース着脱部と、を備えたことを特徴とす
る人工歯根埋入用孔あけツール。1. A hollow cylindrical blade portion having an annular cutting blade portion at its tip, and a guide bit portion located at the axis of the hollow cylindrical blade portion and protruding outward from the cutting blade portion. , A dental handpiece attachment / detachment part, and a hole-drilling tool for artificial tooth root implantation.
よび歯科用ハンドピース着脱部とは一体に形成され、上
記中空筒状刃部は上記ガイドビット部および歯科用ハン
ドピース着脱部とは別体として形成され、上記中空筒状
刃部に嵌合固定されていることを特徴とする人工歯根埋
入用孔あけツール。2. The guide bit portion and the dental handpiece attachment / detachment portion are integrally formed with each other, and the hollow cylindrical blade portion is separate from the guide bit portion and the dental handpiece attachment / detachment portion. A hole-drilling tool for implanting an artificial tooth root, wherein the hole-drilling tool is inserted into the hollow cylindrical blade portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4385990U JP2519986Y2 (en) | 1990-04-24 | 1990-04-24 | Drilling tool for artificial root implantation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4385990U JP2519986Y2 (en) | 1990-04-24 | 1990-04-24 | Drilling tool for artificial root implantation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH043713U JPH043713U (en) | 1992-01-14 |
| JP2519986Y2 true JP2519986Y2 (en) | 1996-12-11 |
Family
ID=31556641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4385990U Expired - Fee Related JP2519986Y2 (en) | 1990-04-24 | 1990-04-24 | Drilling tool for artificial root implantation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2519986Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4597260B1 (en) * | 2010-03-30 | 2010-12-15 | 宏 黒澤 | Jig for forming implant cavity and surgical tool |
| JP2012010758A (en) * | 2010-06-29 | 2012-01-19 | Japan Medical Materials Corp | Boring drill and drill system |
| JP5649897B2 (en) * | 2010-10-01 | 2015-01-07 | 晃 竹林 | Dental drill |
| JP2015139641A (en) * | 2014-01-30 | 2015-08-03 | 株式会社ジーシー | dental bone cutting tool |
-
1990
- 1990-04-24 JP JP4385990U patent/JP2519986Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH043713U (en) | 1992-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |