JPS6031744A - Dental micro-vacuum handpiece with back flow valve - Google Patents
Dental micro-vacuum handpiece with back flow valveInfo
- Publication number
- JPS6031744A JPS6031744A JP14093283A JP14093283A JPS6031744A JP S6031744 A JPS6031744 A JP S6031744A JP 14093283 A JP14093283 A JP 14093283A JP 14093283 A JP14093283 A JP 14093283A JP S6031744 A JPS6031744 A JP S6031744A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- compressed air
- handpiece
- dental
- pipette
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
- A61C17/0208—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication combined with means providing suction
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はベンチュリー管へ噴出する圧縮空気を吸引路へ
逆流させ、ピペットの先端より噴出させるバルブを設け
た逆流バルブ付歯科用マイクロバキュームハンドピース
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dental microvacuum handpiece equipped with a backflow valve that causes compressed air ejected into a Venturi tube to flow back into a suction path and ejected from the tip of a pipette.
根管内の水・薬液・汚物等を吸引し、根管内を洗浄、乾
燥することのできる歯科用マイクロバキュームハンドピ
ースについて、本出願人は先に特許願昭５８−８８９５
１号にて紹介した。同ハンドピースの基本構造は第１図
に示されているように、圧縮空気路５より圧縮空気をベ
ンチュリー管８へ向けて噴出させると負圧部９に負圧が
発生し、ピペット１０の先端より水・薬液・汚物等が吸
引され、吸引路７、ベンチュリー管８を経てホース１６
によって排出されるものである。The applicant previously filed a patent application in 8895-8895 for a dental micro-vacuum handpiece that can suction water, chemicals, dirt, etc. inside the root canal, and clean and dry the inside of the root canal.
Introduced in issue 1. As shown in FIG. 1, the basic structure of the handpiece is that when compressed air is jetted from the compressed air path 5 toward the Venturi tube 8, negative pressure is generated in the negative pressure section 9, and the tip of the pipette 10 is Water, chemicals, filth, etc. are sucked into the hose 16 through the suction path 7 and the Venturi tube 8.
It is discharged by
しかしながら、上記の本出願人発明の歯科用マイクロバ
キ長−ムハンドピースには、汚物等によってピペットの
先端が詰まることがあった。この詰まりが生じた場合に
はその都度ピペットを取りはずし、細いワイヤー等にて
詰まった汚物等を除去しなければならなかった。この作
業は術者にとって甚だ煩雑なものであり、簡単に詰まり
を解消することの可能な歯科用マイクロバキュームハン
ドピースの提供が望まれていた。However, in the above-mentioned dental microbacterial handpiece of the present applicant's invention, the tip of the pipette may become clogged with dirt or the like. Whenever this clogging occurs, the pipette must be removed and the clogged dirt must be removed using a thin wire or the like. This operation is extremely troublesome for the operator, and it has been desired to provide a dental microvacuum handpiece that can easily clear the blockage.
本発明は上記事情に鑑βてなされたもので、その特徴は
ベンチュリー管へ圧縮空気を送る圧縮空気路に、ベンチ
ュリー管へ向う圧縮空気路とベンチュリー管とを閉口す
ると共に、圧縮空気と水・薬液・汚物等を吸引する吸引
路とを連通ずるバルブを設け、ベンチュリー管へ噴出す
る圧縮空気を吸引路へ逆流させ、ピペット先端より噴出
させてピペットに詰まった汚物等を吹き飛ばし、詰まり
を解消するものである。The present invention has been developed in view of the above circumstances, and its features include closing the compressed air path leading to the Venturi tube and the Venturi tube, and connecting compressed air and water to the compressed air path that sends compressed air to the Venturi tube. A valve is installed to communicate with the suction path that sucks out chemical solutions, dirt, etc., and the compressed air that is ejected into the Venturi tube flows back into the suction path, and is ejected from the tip of the pipette to blow out the dirt, etc. that is clogging the pipette, and clear the blockage. It is something.
以下本発明の一実施例を図面を参照しながら説明する。An embodiment of the present invention will be described below with reference to the drawings.
第２図は本発明の吸引時を示すハンドピースの縦断面図
、第３図は本発明の逆流時を示すハンドピースの縦断面
図。１′は本発明の逆流バルブ付歯科用マイクロバキュ
ームハンドピースで、２はＩ（ｕ径管１１にピペット１
０が取付けられたアダプター１２が螺合部１３により互
換可能に固定された頭部、４は後部３に歯牙を切削する
歯科用高速タービンハンドピースのワンクツチカプラ方
式の接続部と同一に形成された接続部、６は流量調節ビ
ス（図示せず）によって流量を調節された水を送る水路
、１１は水を噴出する注水口である。FIG. 2 is a longitudinal cross-sectional view of the handpiece according to the present invention during suction, and FIG. 3 is a longitudinal cross-sectional view of the handpiece during backflow according to the present invention. 1' is a dental microvacuum handpiece with a backflow valve according to the present invention, and 2 is an I (pipette 1 in the U-diameter tube 11).
0 is attached to the head part 12 which is interchangeably fixed by the threaded part 13, and 4 is formed on the rear part 3 to be the same as the connection part of the one-knot coupler type of a dental high-speed turbine handpiece for cutting teeth. 6 is a water channel through which water whose flow rate is adjusted by a flow rate regulating screw (not shown) is provided, and 11 is a water inlet from which water is spouted.
以上は先の発明の歯科用マイクロバキュームハンドピー
スと同じである。The above is the same as the dental microvacuum handpiece of the previous invention.
スプリング２９を介し摺動自在なバルブロッド２１がバ
ルブキャップ２２とバルブ軸２３とから成るバルブ体２
４に内挿され、このバルブ体２４はバルブケース２５に
スプリング３０を介し摺動自在に内挿されて逆流バルブ
２０を形成する。この逆流バルブ２０をハンドピースの
後部３の外部に後部と連結して設けられた負圧発生器２
８に挿入し抜は止めどス３３で固定する。２６はバルブ
軸２３の内外を連通する連通孔、２７はバルブケース２
５の内外を連通ずる連通孔、３１はノくルプロツド２１
の抜は止め段、３ゼはバルブ軸２３の抜は止めリング、
３４，３５，３６，３７，３８は０リングである。A valve body 2 includes a valve rod 21 that is slidable via a spring 29, a valve cap 22, and a valve shaft 23.
4, and this valve body 24 is slidably inserted into the valve case 25 via a spring 30 to form the backflow valve 20. This backflow valve 20 is connected to a negative pressure generator 2 provided outside the rear part 3 of the handpiece.
8, and fix it with the screw 33 to prevent it from being removed. 26 is a communication hole that communicates the inside and outside of the valve shaft 23, and 27 is the valve case 2.
A communication hole that communicates the inside and outside of 5, 31 is a nokuru prod 21
The stop ring is used to remove the valve shaft 23, and the stop ring is used to remove the valve shaft 23.
34, 35, 36, 37, and 38 are 0 rings.
上記の如く構成された本発明によれば、逆流バルブ２０
が開ならば圧縮空気は圧縮空気路を５、連通孔２６．２
７を経てバルブ軸２３の圧縮空気路５よりベンチェ１１
−管８へ噴出する。よって負圧部９に負圧が発生器ピペ
ット１０より水・薬液・汚物等が吸引される。次に逆流
バルブ２０が閉、すなわちバルブロッド２１、バルブ体
２４を共に押圧するならば、バルブロッド２１が連通孔
２６を閉じ、バルブ軸２３がベンチュリー管８を閉じる
。また同時にＯリング３６がバルブケース２５の内周面
より離れ圧縮空気路５と吸引路７を連通ずる。従って圧
縮空気は吸引路７へ逆流しピペット１０より噴出する。According to the present invention configured as described above, the backflow valve 20
If it is open, the compressed air will pass through the compressed air path 5 and the communication hole 26.2.
7 and then from the compressed air path 5 of the valve shaft 23 to the bench 11
- Spout into pipe 8. Therefore, a negative pressure is generated in the negative pressure section 9, and water, chemical solution, dirt, etc. are sucked from the generator pipette 10. Next, when the backflow valve 20 is closed, that is, the valve rod 21 and the valve body 24 are pressed together, the valve rod 21 closes the communication hole 26 and the valve shaft 23 closes the Venturi tube 8. At the same time, the O-ring 36 is separated from the inner peripheral surface of the valve case 25 and communicates the compressed air path 5 with the suction path 7. Therefore, the compressed air flows back into the suction path 7 and is ejected from the pipette 10.
よってピペット１０の先端に詰まった汚物等は吹き飛ば
される。Therefore, dirt and the like that are clogged at the tip of the pipette 10 are blown away.
以上説明したように本発明によれば、ピペットに汚物等
が詰まった時に逆流バルブを押圧するだけで汚物等を吹
き飛ばすことが可能となって、先の発明の歯科用マイク
ロバキュームハンドピースのように細いワイヤー等によ
る煩雑な汚物等の除去作業が解消される。As explained above, according to the present invention, when the pipette is clogged with dirt, etc., it is possible to blow out the dirt by simply pressing the backflow valve. This eliminates the complicated work of removing dirt, etc. using thin wires, etc.
第１図は先の発明の歯科用マイクロバキュームハンドピ
ースの縦断面図、第２図は本発明の吸引時を示すハンド
ピースの縦断面図、第３図は本発明の逆流時を示すハン
ドピースの縦断面図。
５・・・圧縮空気路、７・・・吸引路、８・・・ベンチ
ュリー管、１０１ＩＩＩ・ピペット、２０・・逆流バル
ブ、２１・・・バルブロッド、２４・・バルブ体、２５
・・・バルブケース。
特許出願人 株式会社ミクロン
代表取締役 入 野 光 俊FIG. 1 is a longitudinal sectional view of the dental microvacuum handpiece of the previous invention, FIG. 2 is a longitudinal sectional view of the handpiece of the invention during suction, and FIG. 3 is a longitudinal sectional view of the handpiece of the invention during backflow. Longitudinal cross-sectional view. 5... Compressed air path, 7... Suction path, 8... Venturi tube, 101III pipette, 20... Backflow valve, 21... Valve rod, 24... Valve body, 25
...Valve case. Patent applicant Mitsutoshi Irino, Representative Director of Micron Co., Ltd.
Claims (1)
気路とベンチュリー管とを閉口すると共に、水・薬液・
汚物等を吸引する吸引路と前記圧縮空気とを連通ずるバ
ルブを設けたことを特徴とする逆流バルブ付歯科用マイ
クロバキュームハンドピ］−ス。In the compressed air path that sends compressed air to the Venturi tube, the compressed air path and the Venturi tube are closed, and water, chemical liquid,
1. A dental microvacuum handpiece with a backflow valve, characterized in that a valve is provided to communicate the compressed air with a suction path for sucking dirt and the like.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14093283A JPS6031744A (en) | 1983-08-01 | 1983-08-01 | Dental micro-vacuum handpiece with back flow valve |
| DE8484303319T DE3474506D1 (en) | 1983-05-20 | 1984-05-16 | An endodontic irrigating instrument |
| US06/610,687 US4608017A (en) | 1983-05-20 | 1984-05-16 | Endodontic irrigating instrument |
| EP84303319A EP0127380B1 (en) | 1983-05-20 | 1984-05-16 | An endodontic irrigating instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14093283A JPS6031744A (en) | 1983-08-01 | 1983-08-01 | Dental micro-vacuum handpiece with back flow valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6031744A true JPS6031744A (en) | 1985-02-18 |
| JPH0330369B2 JPH0330369B2 (en) | 1991-04-30 |
Family
ID=15280165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14093283A Granted JPS6031744A (en) | 1983-05-20 | 1983-08-01 | Dental micro-vacuum handpiece with back flow valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6031744A (en) |
-
1983
- 1983-08-01 JP JP14093283A patent/JPS6031744A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0330369B2 (en) | 1991-04-30 |
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