JPH0337608Y2 - - Google Patents
Info
- Publication number
- JPH0337608Y2 JPH0337608Y2 JP1984194288U JP19428884U JPH0337608Y2 JP H0337608 Y2 JPH0337608 Y2 JP H0337608Y2 JP 1984194288 U JP1984194288 U JP 1984194288U JP 19428884 U JP19428884 U JP 19428884U JP H0337608 Y2 JPH0337608 Y2 JP H0337608Y2
- Authority
- JP
- Japan
- Prior art keywords
- tip
- hole
- needle
- tip needle
- mounting hole
- 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
Links
- 239000012530 fluid Substances 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 description 10
- 210000004262 dental pulp cavity Anatomy 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 210000000078 claw Anatomy 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、歯科医療で歯牙の洗浄・拡大などを
行なう歯科用治療機器に関するものである。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a dental treatment device for cleaning and enlarging teeth in dental care.
（従来の技術とその課題）
従来、歯科医療などに用いる超音波振動式機器
として、例えば、
特開昭57−14341号公報
特公昭57−6938号公報
昭和６年実用新案出願公告第40号公報
に開示されているものがある。(Prior art and its problems) Conventionally, as ultrasonic vibration devices used in dental care, etc., for example, JP-A-57-14341, JP-A-57-6938, 1932 Utility Model Application Publication No. 40, etc. There are some disclosed.
従来技術においては、チツプ針としてのやす
りドリル２２が取付けられる器具保持装置１０の
先端に１対の爪部５０と、この両爪部にその内周
が嵌合している環状のロツク装置１４とが設けて
あり、両爪部の間にやすりドリル２２を挿入した
後、ロツク装置１４を回転させることにより、２
本の爪部がやすりドリル２２を挟持するようにな
つている。洗浄液は両爪部の間の溝５８を通り、
やすりドリル２２へと導かれるようになつてい
る。 In the prior art, a pair of claws 50 are provided at the tip of an instrument holding device 10 to which a file drill 22 as a tip needle is attached, and an annular locking device 14 whose inner periphery is fitted into both claws. is provided, and after inserting the file drill 22 between both claws, by rotating the locking device 14, the two
The nail part of the book is adapted to hold the file drill 22. The cleaning liquid passes through the groove 58 between both claws,
It is adapted to be guided to a file drill 22.
また従来技術においては、リング状の付属装
置１８の回転によりチツプ針としての歯科工具２
０をコネクター６６にねじ込み係合するものであ
る。歯科工具２０には流体通路１３４が設けてあ
り、この通路１３４はこの工具２０を機器に取付
けたときコネクター側の通路７１と連通し、供給
された流体は通路７１，１３４を経て工具２０の
先端部の出口１３６から放出されるものである。 Further, in the prior art, the dental tool 2 as a tip needle is operated by rotating the ring-shaped attachment device 18.
0 is screwed into the connector 66 and engaged. The dental tool 20 is provided with a fluid passage 134, and this passage 134 communicates with the passage 71 on the connector side when the tool 20 is attached to the equipment, and the supplied fluid passes through the passages 71 and 134 to the tip of the tool 20. It is discharged from the outlet 136 of the section.
しかしながら、上記の従来技術，では、部
品点数が多く、構成が複雑であり、製造が煩雑で
ある。またチツプ針の着脱に手間がかかる。さら
にチツプ針を取付けるためのロツク装置や付属装
置があるために死角が大きくなり、チツプ針によ
つて治療する部分が見えにくく、作業が行ないづ
らいという欠点がある。 However, the above-mentioned conventional technology has a large number of parts, a complicated structure, and is complicated to manufacture. Also, it takes time to attach and detach the tip needle. Furthermore, the presence of a locking device and ancillary devices for attaching the tip creates a large blind spot, making it difficult to see the area to be treated with the tip and making it difficult to perform the procedure.
また従来技術においては、ホルダ１の先端に
透孔３を設け、この透孔３の後端側に傾斜面２が
形成されており、針４は透孔３に挿入されたと
き、その後端部が傾斜面２で曲げられて、針自身
の弾性復元力によつてホルダ１に取り付けられる
ものである。 Further, in the prior art, a through hole 3 is provided at the tip of the holder 1, and an inclined surface 2 is formed on the rear end side of the through hole 3, so that when the needle 4 is inserted into the through hole 3, the rear end The needle is bent at the inclined surface 2 and attached to the holder 1 by the elastic restoring force of the needle itself.
しかしこの従来技術は、針に沿つて流体を供
給するための流路や、振動発生装置を一切有しな
いものである。しかも、傾斜面２はホルダ１の側
面を一定深さだけ削り落として形成したものであ
るため、傾斜面が外部に露出することになり、針
に流体を供給することは不可能である。仮に、こ
の露出部を他の部材で埋め合わせたとしても、ホ
ルダ１自身に流体の通過孔が形成されていないた
め、実際に歯科治療を行なうには、洗浄液を別の
チユーブ等を用いて供給することになる。このこ
とは、患者の口腔内にホルダ１と洗浄液供給用チ
ユーブとを同時に入れることになり、治療に手間
がかかるばかりか、患者に苦痛を与えることにな
る。 However, this prior art does not have any flow path for supplying fluid along the needle or any vibration generator. Moreover, since the inclined surface 2 is formed by cutting off the side surface of the holder 1 by a certain depth, the inclined surface is exposed to the outside, making it impossible to supply fluid to the needle. Even if this exposed part were to be filled with another member, the holder 1 itself does not have a fluid passage hole, so in order to actually perform dental treatment, the cleaning liquid would have to be supplied using a separate tube or the like. It turns out. This means that the holder 1 and the cleaning fluid supply tube must be inserted into the patient's oral cavity at the same time, which not only takes time and effort for treatment but also causes pain to the patient.
そこで本考案の第１の目的は、簡単な構成でフ
アイルの着脱を容易にするとともに、水や洗浄液
などの流体を確実にフアイルの先端に到達させる
ことにある。 Therefore, the first object of the present invention is to facilitate attachment and detachment of the file with a simple structure, and to ensure that fluid such as water or cleaning liquid reaches the tip of the file.
本考案の第２の目的は、フアイルの取付部を小
さくして死角を小さくすることにある。 The second object of the present invention is to reduce the blind spot by making the attachment portion of the file smaller.
（目的を達成するための手段）
上記目的を達成するための、本考案の特徴は、
流体の通過孔が設けてある振動発生装置の先端
に、この通過孔に連通する連通孔を有する細管状
のチツプホルダが取付けてあり、このチツプホル
ダの中途に屈成してある屈成部よりも先の先端部
にはこの連通孔よりも僅かに大径の取付孔が直線
状に形成してあり、ばね材にてこの取付孔より小
径に形成してある一方、後端部からの距離が取付
孔の長さの略２分の１に相当する位置で僅かな曲
げ部を設けて略「ヘ」の字状に形成してあるチツ
プ針がこの取付孔に挿入されたとき、チツプ針
は、取付孔の開口端、中間部、終端の３点で取付
孔の内面に弾接的に保持され、開口端と終端にお
けるチツプ針の取付孔の内面に対する接点が内面
の一側にあり、かつ中間部におけるチツプ針の曲
げ部の取付孔の内面に対する接点が内面の他側に
あり、取付孔の内面とチツプ針の外周との間に
は、流体を通すための間隙が連続して蛇行的に生
成されているところにある。(Means for achieving the purpose) The features of the present invention to achieve the above purpose are as follows:
A thin tube-shaped tip holder having a communication hole that communicates with the passage hole is attached to the tip of the vibration generator that is provided with a fluid passage hole, and the tip holder has a tip holder that is bent in the middle of the tip holder. A mounting hole with a diameter slightly larger than this communication hole is formed in a straight line at the tip of the , and the diameter is smaller than this hole with spring material, while the distance from the rear end is When the tip needle, which is formed into an approximately "F" shape with a slight bend at a position corresponding to approximately one half of the length of the hole, is inserted into this attachment hole, the tip needle will: The tip needle is elastically held on the inner surface of the mounting hole at three points: the open end, the middle part, and the terminal end, and the contact points of the tip needle with the inner surface of the mounting hole at the open end and the terminal end are on one side of the inner surface, and the middle part The contact point of the bent part of the tip needle at the inner surface of the mounting hole is on the other side of the inner surface, and there is a continuous gap for fluid passage between the inner surface of the mounting hole and the outer periphery of the tip needle in a meandering manner. It's where it's being generated.
（実施例）
第１〜６図において、振動発生装置１は２枚の
セラミツクなどの圧電体２，２と、これらの圧電
体の中間と両側に位置する３枚の電極３……とか
ら構成される圧電振動子を、ホーン４と負荷マス
５とにより挟み、締付けボルト６とナツト７によ
り締付けたバイモルフ型のボルト締めランジユバ
ン型の振動発生装置である。圧電振動子の両側の
電極３，３の外側には、アルミナなどの絶縁リン
グ８，８が配設され、電極３…と締付ボルト６と
の間には絶縁パイプ９が配設されている。振動発
生装置１のホーン４にはローレツト（図示せず。）
を形成した係合部４ａが設けてあり、係合部４ａ
はケース１０の内周面に係合している。またホー
ン部４の中程の外周部はケース１０に螺合されて
いる前ケース１１に嵌合しており、これによつて
振動発生装置１が加工装置本体内に支持されてい
る。ホーン４とケース１０との間にはリング１２
が配設してある。締付ボルト６の中心には流体の
通過孔６ａが設けてあり、締付ボルト６の後端は
パイプ１３の取付部６ｂとなつている。ホーン４
の中央には通過孔６ａと連通する連通孔４ｂが設
けてあり、その先端（第１図右方）にはチツプホ
ルダ１４がねじ込まれる取付ねじ部４ｃが設けて
ある。チツプホルダ１４は細管状であり、その中
心には、締付ボルト６の通過孔６ａおよびホーン
４の通過孔４ｂと連通する連通孔１４ａが形成さ
れている。チツプホルダ１４は振動発生装置１の
一部をなし、中途で略「ヘ」の状に屈成してある
一方、連通孔１４ａに連通して連通孔１４ａより
僅かに大径の取付孔１５が開口して設けてある。
この取付穴１５は直線状に形成してある。連通孔
１４ａと取付孔１５との接続部分は段差となり、
位置決め部１６となつている。取付孔１５にはチ
ツプ針１７の基端部が挿入されるようになつてお
り、これによつてチツプ針１７は取付孔１５に取
り付けられる。チツプ針１７はバネ用ステンレス
鋼などのばね材より形成され、歯牙の根管の奥ま
で挿入できるように先端が尖つており、本例では
根管拡大が容易なように捩られている。チツプ針
１７の外径は、取付孔１５の内径より小さくなつ
ており、基端部が取付孔１５に挿入されたとき両
者間に水などの流体が通過可能の連続した間隙１
８が形成されるように設定され、本例では取付孔
１５の内径が0.9mm、チツプ針１７の外径が0.8mm
で、間隙１８は0.1mmとなるよう設定されている。
チツプ針１７基端部の取付孔１５の長さの略２分
の１に相当する位置には、僅かな曲げ部１７ａが
設けられて略「ヘ」の字状に形成されている。曲
げ部１７ａの位置は、本例では取付孔１５の奥行
の中間よりやや奥側となるように設定してある。
第３図実線で示されるように曲げられたチツプ針
１７の曲げ部１７ａは、取付孔１５に挿入された
ときは２点鎖線で示される状態となり、取付孔１
５の内面に弾接して圧入状態となる。すなわち、
曲げ部１７ａの外側面１７ｂが取付孔１５の内面
の一側に弾接し（第５図）、曲げ部１７ａの開口
側および奥側の内側面１７ｃ，１７ｄが取付孔１
５の内面の他側に弾接し（第４，６図）、チツプ
針１７は取付孔１５内に外側面１７ｂおよび内側
面１７ｃ，１７ｄの３点により支持される。間隙
１８は、取付孔１５の内面とチツプ針１７との弾
接部分（３点）の反対側に連続して蛇行的に生成
される。連通孔１４ａを通過した流体は間隙１８
を通つてチツプ針１７の先端まで導かれる。(Example) In Figs. 1 to 6, the vibration generator 1 is composed of two piezoelectric bodies 2, 2 such as ceramics, and three electrodes 3 located in the middle and on both sides of these piezoelectric bodies. This is a bimorph-type bolt-tightening lunge-type vibration generator in which a piezoelectric vibrator is sandwiched between a horn 4 and a load mass 5, and tightened with a tightening bolt 6 and a nut 7. Insulating rings 8, 8 made of alumina or the like are arranged on the outside of the electrodes 3, 3 on both sides of the piezoelectric vibrator, and an insulating pipe 9 is arranged between the electrodes 3... and the tightening bolts 6. . The horn 4 of the vibration generator 1 has a knurling (not shown).
An engaging portion 4a is provided, and the engaging portion 4a is formed with a
is engaged with the inner peripheral surface of the case 10. Further, the middle outer circumferential portion of the horn portion 4 is fitted into a front case 11 which is screwed onto the case 10, thereby supporting the vibration generator 1 within the main body of the processing apparatus. A ring 12 is installed between the horn 4 and the case 10.
is arranged. A fluid passage hole 6a is provided at the center of the tightening bolt 6, and the rear end of the tightening bolt 6 serves as a mounting portion 6b for the pipe 13. horn 4
A communication hole 4b communicating with the passage hole 6a is provided in the center thereof, and a mounting screw portion 4c into which the tip holder 14 is screwed is provided at the tip (right side in FIG. 1) of the communication hole 4b. The tip holder 14 is in the shape of a thin tube, and a communication hole 14a is formed in the center of the tip holder 14, which communicates with the passage hole 6a of the tightening bolt 6 and the passage hole 4b of the horn 4. The chip holder 14 forms a part of the vibration generator 1, and is bent in a substantially "H" shape in the middle, while a mounting hole 15 that communicates with the communication hole 14a and has a slightly larger diameter than the communication hole 14a is opened. It is provided as follows.
This mounting hole 15 is formed in a straight line. The connecting part between the communication hole 14a and the mounting hole 15 is stepped,
It serves as a positioning section 16. The base end of the tip needle 17 is inserted into the attachment hole 15, and the tip needle 17 is thereby attached to the attachment hole 15. The tip needle 17 is made of a spring material such as spring stainless steel, has a sharp tip so that it can be inserted deep into the root canal of a tooth, and is twisted in this example to facilitate root canal enlargement. The outer diameter of the tip needle 17 is smaller than the inner diameter of the attachment hole 15, and when the proximal end is inserted into the attachment hole 15, a continuous gap 1 is created between the two through which fluid such as water can pass.
In this example, the inner diameter of the mounting hole 15 is 0.9 mm, and the outer diameter of the tip needle 17 is 0.8 mm.
The gap 18 is set to 0.1 mm.
A slight bent portion 17a is provided at a position corresponding to approximately one half of the length of the attachment hole 15 at the proximal end of the tip needle 17, and is formed into an approximately "F" shape. In this example, the position of the bent portion 17a is set to be slightly further back than the middle of the depth of the mounting hole 15.
The bent portion 17a of the tip needle 17, which is bent as shown by the solid line in FIG.
It comes into elastic contact with the inner surface of 5 and is press-fitted. That is,
The outer surface 17b of the bent portion 17a is in elastic contact with one side of the inner surface of the mounting hole 15 (FIG. 5), and the inner surfaces 17c and 17d on the opening side and the back side of the bent portion 17a are in contact with one side of the inner surface of the mounting hole 15 (FIG. 5).
5 (FIGS. 4 and 6), and the tip needle 17 is supported within the mounting hole 15 at three points: the outer surface 17b and the inner surfaces 17c and 17d. The gap 18 is continuously generated in a meandering manner on the opposite side of the elastic contact portion (three points) between the inner surface of the attachment hole 15 and the tip needle 17. The fluid passing through the communication hole 14a flows through the gap 18.
The tip is guided through the tip to the tip of the tip needle 17.
本考案は上記構成であり、水や洗浄液などの流
体は、振動発生装置１の通過孔６ｂ，４ｂおよび
チツプホルダ１４の連通孔１４ａを通り、取付孔
１５とチツプ１７との間隙１８を通つてチツプ針
１７の根元に到達する。そして流体はチツプ針１
７に沿つて流れ、チツプ針１７の先端まで確実に
到達する。歯牙の根管を洗浄・拡大するときは、
根管内にチツプ針１７を挿入し、振動発生装置１
を作動させ、パイプ１３より水や洗浄液などを供
給し、チツプ針１７を根管内に挿入し、洗浄・拡
大などの加工を行なう。 The present invention has the above configuration, and fluid such as water and cleaning liquid passes through the passage holes 6b and 4b of the vibration generator 1 and the communication hole 14a of the tip holder 14, and passes through the gap 18 between the mounting hole 15 and the tip 17 to the tip. The base of the needle 17 is reached. And the fluid is tip needle 1
7 and reaches the tip of the tip needle 17 without fail. When cleaning and enlarging the root canal of a tooth,
The tip needle 17 is inserted into the root canal, and the vibration generator 1
The root canal is operated, water, cleaning liquid, etc. are supplied from the pipe 13, the tip needle 17 is inserted into the root canal, and processing such as cleaning and enlarging is performed.
なお、上述の実施例では、取付孔１５は断面を
円形とし、チツプ針１７も断面を円形としたが、
これに限らず他の形状でもよく、両者の間に流体
が通過可能の間隙１８が形成されればよい。 In addition, in the above-mentioned embodiment, the attachment hole 15 had a circular cross section, and the tip needle 17 also had a circular cross section.
The shape is not limited to this, and other shapes may be used as long as a gap 18 through which fluid can pass is formed between the two.
また間隙１８には、水や洗浄液の他、空気など
を通過させるようにしてもよい。 Further, air may be allowed to pass through the gap 18 in addition to water and cleaning liquid.
（効果）
以上のように本考案の歯科用治療機器によれ
ば、チツプ針は、その屈曲された基部を取付孔に
挿入するだけで取付けることができ、従来のよう
にロツク部材などの特別な別部材を設ける必要が
ないため、チツプ針の取付部を極めて小さくする
ことができる。そのため、死角が小さくなつて作
業がし易くなり、治療や加工を的確に行なうこと
ができる。またチツプ針を取外すときも、チツプ
針を引抜くだけでよいため、チツプ針の着脱作業
が極めて容易になる。またチツプ針の取付強さ
は、基端部の屈成角度を調節することによつて調
整することができ、取付け強さの調整も容易であ
る。チツプ針は取付孔に挿入されたとき、その後
端が位置決め部に当接するため、定められた位置
に確実に取付けでき、チツプ針の先端までの寸法
を正確にできるめ、チツプ針が最適に共振振動し
て根管の洗浄・拡大などを効率よく行なえる。さ
らにチツプホルダにチツプ針の外径より僅かに大
きい内径の取付孔を設け、チツプ針の基端部を屈
曲するだけなので、製造が極めて容易である。水
などの流体は、連通孔から取付孔とチツプ針との
間隙を通り、しかもこの間隙はチツプ針基端部外
周面にからみつくように蛇行的に生成されている
ため、チツプ針に伝わつて確実に治療部に到達す
る。(Effects) As described above, according to the dental treatment device of the present invention, the tip needle can be installed by simply inserting its bent base into the installation hole, and unlike the conventional device, the tip needle can be installed by simply inserting the bent base into the installation hole. Since there is no need to provide a separate member, the attachment portion of the tip needle can be made extremely small. Therefore, the blind spot becomes smaller, making it easier to work, and making it possible to perform treatment and processing accurately. Further, when removing the tip needle, it is only necessary to pull out the tip needle, so the work of attaching and removing the tip needle is extremely easy. Furthermore, the attachment strength of the tip needle can be adjusted by adjusting the bending angle of the proximal end, making it easy to adjust the attachment strength. When the tip needle is inserted into the mounting hole, the rear end comes into contact with the positioning part, so it can be securely installed in the specified position, and the dimension to the tip of the tip needle can be accurately measured, so the tip needle resonates optimally. It vibrates to efficiently clean and expand root canals. Further, manufacturing is extremely easy because the tip holder is provided with a mounting hole having an inner diameter slightly larger than the outer diameter of the tip needle, and the proximal end of the tip needle is simply bent. Fluids such as water pass from the communication hole through the gap between the attachment hole and the tip needle, and this gap is generated in a meandering manner so as to wrap around the outer circumferential surface of the proximal end of the tip needle, so that it is transmitted to the tip needle reliably. to reach the treatment department.
図面は本考案の一実施例を示すものであつて、
第１図は針取付部における拡大断面図、第２図は
本考案に係る歯科用治療機器の断面図、第３図は
チツプ針の基端部の拡大正面図、第４〜６図はそ
れぞれ第１図−線、−線、−線に沿
う断面図である。
１……振動発生装置、１４……チツプホルダ、
４ｂ，６ａ……通過孔、１４ａ……連通孔、１５
……取付孔、１７……チツプ針、１７ａ……曲げ
部、１７ｂ……曲げ部の外側面、１７ｃ，１７ｄ
……曲げ部の内側面、１８……間隙。
The drawings show one embodiment of the present invention,
Fig. 1 is an enlarged sectional view of the needle attachment part, Fig. 2 is a sectional view of the dental treatment device according to the present invention, Fig. 3 is an enlarged front view of the proximal end of the tip needle, and Figs. 4 to 6 are respectively FIG. 1 is a cross-sectional view taken along lines -, -, -. 1... Vibration generator, 14... Chip holder,
4b, 6a... Passing hole, 14a... Communication hole, 15
...Mounting hole, 17...Tip needle, 17a...Bent part, 17b...Outer surface of bent part, 17c, 17d
...inner surface of the bent part, 18...gap.
Claims (1)
には、上記通過孔に連通する連通孔を有する細管
状のチツプホルダが取付けてあり、 上記チツプホルダはその中途で略「ヘ」の字状
に屈成してある一方、この屈成部よりも先の先端
部には上記連通孔よりも僅かに大径の取付孔が直
線状に形成してあり、 上記取付孔に挿入されるチツプ針は、ばね材に
て上記取付孔より小径に形成してある一方、後端
部からの距離が上記取付孔の長さの略２分の１に
相当する位置で僅かな曲げ部を設けて略「ヘ」の
字状に形成してあり、上記チツプ針を上記取付孔
に挿入したとき、上記チツプ針は、上記取付孔の
開口端と中間部と終端との３点で上記取付孔の内
面に弾接的に保持され、 上記開口端と上記終端における上記チツプ針の
上記取付孔の内面に対する接点は上記内面の一側
にあり、かつ上記中間部における上記チツプ針の
上記曲げ部の上記取付孔の内面に対する接点は上
記内面の他側にあり、 上記取付孔の内面と上記チツプ針の外周との間
には、上記流体を通すための間隙が連続して蛇行
的に生成されている ことを特徴とする歯科用治療機器。[Claims for Utility Model Registration] A tip holder in the form of a thin tube having a communication hole communicating with the passage hole is attached to the tip of the vibration generator provided with a passage hole for fluid, and the tip holder is located in the middle of the tip holder. While it is bent in a "F" shape, a mounting hole with a slightly larger diameter than the above communication hole is formed in a straight line at the tip beyond this bend. The tip needle inserted into the hole is made of spring material and has a diameter smaller than that of the above-mentioned mounting hole. The tip needle is formed into a substantially "F" shape with a bent portion, and when the tip needle is inserted into the attachment hole, the tip needle is formed at three points: the open end, the middle part, and the terminal end of the attachment hole. contact points of the tip needle with the inner surface of the attachment hole at the open end and the terminal end are on one side of the inner surface, and The contact point of the bent portion with the inner surface of the mounting hole is on the other side of the inner surface, and a gap for passing the fluid is continuous in a meandering manner between the inner surface of the mounting hole and the outer periphery of the tip needle. Dental treatment equipment characterized by being produced in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984194288U JPH0337608Y2 (en) | 1984-12-21 | 1984-12-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984194288U JPH0337608Y2 (en) | 1984-12-21 | 1984-12-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61109508U JPS61109508U (en) | 1986-07-11 |
| JPH0337608Y2 true JPH0337608Y2 (en) | 1991-08-08 |
Family
ID=30751737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984194288U Expired JPH0337608Y2 (en) | 1984-12-21 | 1984-12-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0337608Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS576938A (en) * | 1980-06-16 | 1982-01-13 | Canon Inc | Voice output device |
| JPS5714341A (en) * | 1980-06-30 | 1982-01-25 | Maachin Hawaado | Holder for unmyelinated dental instrument |
| JPH0640U (en) * | 1992-06-15 | 1994-01-11 | 守男 堀 | Tea leaves storage |
-
1984
- 1984-12-21 JP JP1984194288U patent/JPH0337608Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS576938A (en) * | 1980-06-16 | 1982-01-13 | Canon Inc | Voice output device |
| JPS5714341A (en) * | 1980-06-30 | 1982-01-25 | Maachin Hawaado | Holder for unmyelinated dental instrument |
| JPH0640U (en) * | 1992-06-15 | 1994-01-11 | 守男 堀 | Tea leaves storage |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61109508U (en) | 1986-07-11 |
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