JPH01280452A - Dental bacteria-proof hand piece - Google Patents
Dental bacteria-proof hand pieceInfo
- Publication number
- JPH01280452A JPH01280452A JP10881288A JP10881288A JPH01280452A JP H01280452 A JPH01280452 A JP H01280452A JP 10881288 A JP10881288 A JP 10881288A JP 10881288 A JP10881288 A JP 10881288A JP H01280452 A JPH01280452 A JP H01280452A
- Authority
- JP
- Japan
- Prior art keywords
- handpiece
- pipe
- germ
- blocking means
- check valve
- 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
- 230000000903 blocking effect Effects 0.000 claims description 24
- 230000000844 anti-bacterial effect Effects 0.000 claims description 11
- 230000001954 sterilising effect Effects 0.000 claims description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims description 7
- 239000012510 hollow fiber Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 53
- 241000894006 Bacteria Species 0.000 abstract description 20
- 238000002347 injection Methods 0.000 abstract description 7
- 239000007924 injection Substances 0.000 abstract description 7
- 208000003322 Coinfection Diseases 0.000 abstract description 6
- 208000015181 infectious disease Diseases 0.000 abstract description 5
- 229920003002 synthetic resin Polymers 0.000 abstract description 3
- 239000000057 synthetic resin Substances 0.000 abstract description 3
- 239000004809 Teflon Substances 0.000 abstract description 2
- 229920006362 Teflon® Polymers 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 244000052616 bacterial pathogen Species 0.000 description 13
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000003128 head Anatomy 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 208000006558 Dental Calculus Diseases 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 208000030507 AIDS Diseases 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 208000002672 hepatitis B Diseases 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/08—Machine parts specially adapted for dentistry
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/0061—Air and water supply systems; Valves specially adapted therefor
- A61C1/0076—Sterilising operating fluids or fluid supply elements such as supply lines, filters
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (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
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、防菌性を付与した歯科用ハンドピースに関す
るものである。尚、本発明が対象とする歯科用ハンドピ
ースは、エアタービンハンドピース、マイクロモーター
ハンドピース、スケーラ、３ウエイシリンジ及びその他
のシリンジ等を総称するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a dental handpiece provided with antibacterial properties. Note that the dental handpiece to which the present invention is directed is a general term for an air turbine handpiece, a micromotor handpiece, a scaler, a three-way syringe, and other syringes.
（従来の技術）
上記歯科用ハンドピースの本体内には、その先端部に亘
ってエアタービン駆動用・排気用或いは患部噴射用若し
くは冷却用のエア管路、患部注水用若しくは冷却用の水
管路、患部照射用導光体、駆動用伝達軸、更には薬液注
出用管路等が、船種に応じて適宜内蔵される。また、上
記エア、水及び薬液等の供給管路は、ハンドピース本体
の基部に接続される可撓性チューブに纏めて内装された
各管路に接続される。そして、これら作用媒体は上記各
管路の途中に配設された電磁弁等により供給制御がなさ
れる。また従来より、水や薬液等の供給停止後、その注
出口からの清水を防止する為、電磁弁に吸込手段を具備
したものも開発され実用化されるに至っている。(Prior Art) Inside the main body of the dental handpiece, there are an air conduit for driving an air turbine, exhaust, or injection or cooling of the affected area, and a water conduit for injecting water into the affected area or cooling the affected area. , a light guide for irradiating the affected area, a driving transmission shaft, and a conduit for dispensing liquid medicine are installed as appropriate depending on the type of ship. Further, the supply pipes for the air, water, chemical liquid, etc. are connected to respective pipes that are collectively housed in a flexible tube connected to the base of the handpiece body. The supply of these working media is controlled by a solenoid valve or the like disposed in the middle of each of the pipes. Furthermore, electromagnetic valves equipped with suction means have been developed and put into practical use in order to prevent clean water from flowing out of the spout after the supply of water, chemical liquid, etc. is stopped.
（発明が解決しようとする課題）
ところで、上記歯科用ハンドピースは患者の口腔内に挿
入され使用されるものであり、患者が保有する各種雑菌
がその使用の過程で各供給管路を逆流したり、或いは先
端ヘッド部の駆動部等に侵入し更に排気管路内に流入し
たりすることがある。(Problem to be Solved by the Invention) By the way, the above-mentioned dental handpiece is used by being inserted into the patient's oral cavity, and various bacteria carried by the patient flow back through each supply pipe during the use of the handpiece. Or, it may invade the driving part of the distal head section and further flow into the exhaust pipe.
ハンドピース本体は、通常可撓性チューブから取外し可
能とされているので滅菌消毒することはできるが、可撓
性チューブや操作ユニット等に至った雑菌は、可撓性チ
ューブや操作ユニット自体の滅菌消毒が難しい為、そこ
でとどまり且つ繁殖し、これが次に使用するときには患
者の口腔内に注入され、二次感染の原因となったりする
ことがあった。特に、上記の如く吸込による滴水防止手
段を具備するものは、雑菌の逆流を助長することにもな
っていた。近時、医療現場に於けるＢ型肝炎やエイズ等
の病原菌の二次感染が問題とされ、歯科治療分野でもそ
の抜本的且つ早急な改善が強く望まれていた。The handpiece body is usually removable from the flexible tube, so it can be sterilized and disinfected. Because it is difficult to disinfect, it remains there and multiplies, and the next time it is used, it may be injected into the patient's oral cavity, causing secondary infection. In particular, those equipped with means for preventing water dripping by suction as described above also encourage the backflow of germs. In recent years, secondary infections caused by pathogens such as hepatitis B and AIDS in medical settings have become a problem, and drastic and immediate improvements have been strongly desired in the field of dental treatment.
本発明は上記実状に鑑みなされたもので、患者が保有す
る雑菌の逆流を阻止し、上記二次感染の未然防止を図ら
んとした新規な歯科用防菌ハンドピースを提供せんとす
るものである。The present invention was made in view of the above circumstances, and aims to provide a novel dental antibacterial handpiece that prevents the backflow of germs carried by patients and prevents the secondary infection described above. be.
（課題を解決する為の手段）
上記目的を達成する為の本発明の歯科用防菌ハンドピー
スは、ハンドピース本体に作用媒体の流通管路を内蔵し
た歯科用ハンドピースに於いて、上記流通管路の途中に
雑菌遮断手段を配設してなることを特徴とするものであ
る。(Means for Solving the Problems) To achieve the above object, the dental antibacterial handpiece of the present invention has a working medium distribution channel built into the handpiece body. It is characterized in that a means for blocking germs is disposed in the middle of the conduit.
上記作用媒体としては、エアタービンを駆動させる為の
エア、患部に噴射され或いは器材を冷却する為のエア、
水、薬液等を含み、また作用媒体の流通管路としてはこ
れらの供給管路の他にタービンでの使用済み排気管路を
も含む。The working medium includes air for driving an air turbine, air for injecting to the affected area or cooling equipment,
It contains water, chemical solutions, etc., and in addition to these supply pipes, used exhaust pipes from the turbine are also included as working medium distribution pipes.
上記雑菌遮断手段としては、媒体の逆流を防止する逆止
弁、媒体中の雑菌の流動を阻止する微細フィルター等が
採用可能であり、これらは対応する作用媒体の流通管路
の途中に交換可能に夫々単独で或いは併用され配設され
る。上記逆止弁としては、媒体流通路にボールを流通方
向に沿って遊動可能に内設し、或いは該ボールをスプリ
ングにより媒体供給側に弾力付勢した所謂ボール弁や、
むしゴムタイプのものなどが採用される。一方、上記フ
ィルターとしては、中空糸膜除菌フィルター（特開昭５
９−６２６４９号で開示されたセルロースアセテート多
孔体；極微細な透孔を多数備え細菌のような極微細粒子
を除、去できる）或いはセラミックス製や繊維製の抗菌
フィルター等が使用される。As the bacteria blocking means, a check valve that prevents the backflow of the medium, a fine filter that prevents the flow of bacteria in the medium, etc. can be adopted, and these can be replaced in the middle of the distribution pipe of the corresponding working medium. Each of them may be used alone or in combination. The above-mentioned check valve may include a so-called ball valve in which a ball is installed in the medium flow path so as to be movable along the flow direction, or the ball is elastically biased toward the medium supply side by a spring;
A rubber type one is used. On the other hand, the above-mentioned filter is a hollow fiber membrane sterilization filter (Japanese Patent Laid-Open No. 5
A cellulose acetate porous material disclosed in Japanese Patent No. 9-62649 (having many microscopic pores and capable of removing microscopic particles such as bacteria), or an antibacterial filter made of ceramics or fibers may be used.
亦、上記雑菌遮断手段は、上記ハンドピース本体内に配
設された対応流通管路を挿入し得る接続管と、ハンドピ
ース本体の管内に密嵌し得るディスク状ブツシュ部とを
一体具備して一括取り出し可能としたもの、更に該ブツ
シュ部が、ハンドピース本体内に内蔵された他の作用媒
体の流通管路或いは附帯手段（例えば、照明用導光体や
駆動軸等）を保持し或いは前後に連関させる為の貫通孔
を有するものが望ましく採用される。Further, the bacteria blocking means integrally includes a connecting pipe into which a corresponding flow pipe disposed within the handpiece body can be inserted, and a disc-shaped bushing part that can be tightly fitted into the pipe of the handpiece body. The bushing part can be taken out all at once, and the bushing part can hold other working medium distribution channels or accessory means (for example, a light guide for illumination, a drive shaft, etc.) built into the handpiece body, or It is preferable to use a device having a through hole for connection with the device.
更に、ハンドピース本体を接続部を介して先側と基部側
とに分断可能とし、雑菌遮断手段を上記ブツシュ部と共
にこの接続部より装着するようになすことも望ましい。Furthermore, it is also desirable that the handpiece main body is separable into a distal end and a proximal end via a connecting portion, and that the germ blocking means is attached together with the bushing through this connecting portion.
（作用）
上記構成の歯科用ハンドピースは、歯牙の切削、切削屑
の除去、患部若しくは器材等の冷却、歯石或いは歯垢の
除去等に供せられる。この時、ハンドピース本体に内蔵
された作用媒体の供給管路から各種作用媒体が供給され
、エアタービンが回転駆動され或いは器材の冷却がなさ
れ、また患部に向は噴射されて上記切削屑、歯石或いは
歯垢の除去や患部の冷却等がなされる。患部に噴射され
る水及びエアは、夫々単独で使用される場合の他、同時
に混合噴射されてミスト状に使用される場合もある。タ
ービンでの使用済みのエアは、ハンドピース本体に内蔵
された排気管路を経て器外に排出される。更に、照明手
段を有している場合は、ハンドピース本体に内蔵された
導光体を経てその先端より患部に照射される。(Function) The dental handpiece having the above structure is used for cutting teeth, removing cutting waste, cooling affected areas or instruments, removing tartar or plaque, and the like. At this time, various working media are supplied from the working medium supply pipe built into the handpiece body, the air turbine is driven to rotate, the instruments are cooled, and the working media are sprayed toward the affected area to remove the cutting debris and tartar. Alternatively, plaque is removed, the affected area is cooled, etc. The water and air sprayed onto the affected area may be used individually, or may be mixed and sprayed simultaneously to form a mist. The air used in the turbine is discharged outside the device through an exhaust pipe built into the handpiece body. Furthermore, if the handpiece is equipped with an illumination means, the affected area is irradiated from the tip of the light guide through a light guide built into the handpiece body.
上記使用に際して、患部に保有された各種雑菌が作用媒
体の流通管路を逆流しようとする。しかし、これら流通
管路には雑菌遮断手段が配設されているから、それ以上
の逆流が阻止される。従って、操作ユニットからハンド
ピース本体にかけての作用媒体の管路は常に清潔な状態
に維持される。During the above-mentioned use, various germs retained in the affected area attempt to flow back through the flow channel of the active medium. However, since bacteria blocking means are provided in these flow channels, further backflow is prevented. Therefore, the working medium conduit from the operating unit to the handpiece body is always kept clean.
そして、ハンドピース本体を使用後滅菌消毒して再度装
着すれば５次の患者に雑菌が感染することはないのであ
る。逆止弁と除菌若しくは抗菌フィルターが併用されて
いる場合、この雑菌の遮断がより完全になされる。If the handpiece body is sterilized and disinfected after use and then reattached, germs will not infect the next patient. When a check valve and a sterilization or antibacterial filter are used together, this bacteria can be blocked more completely.
亦、雑菌遮断手段が取外し可能とされている場合は、こ
れのみを滅菌消毒して繰り返し使用したりユーザーが簡
単に新品と取替えて使用できる。In addition, if the germ blocking means is removable, it can be sterilized and disinfected and used repeatedly, or the user can easily replace it with a new one.
更に、該雑菌遮断手段が、上記接続管及びブツシュ部を
具備している場合、雑菌遮断手段及び各種流通管路のハ
ンドピース本体内での位置決めが簡易且つ適確になされ
る。そしてハンドピース本体を接続部を介して先側と基
部側とに分断可能とし、この接続部に上記ブツシュ部と
共に雑菌遮断手段を装着するようにすれば、交換等のメ
インテナンスが極めて簡易となる。Furthermore, when the germ-blocking means includes the connecting pipe and bushing portion, the germ-blocking means and various flow channels can be easily and accurately positioned within the handpiece body. If the handpiece body can be separated into a distal end and a proximal end via a connecting portion, and a germ blocking means is attached to this connecting portion together with the bushing, maintenance such as replacement becomes extremely simple.
（実施例） 次に添付図面に基づき本発明の実施例を述べる。(Example) Next, embodiments of the present invention will be described based on the accompanying drawings.
ここに、第１図は本発明ハンドピースの一実施例を示す
部分縦断正面図、第２図は第１図の■線部拡大図、第３
図は要部の斜視図、第４図は他の実施例の第２図と同様
図、第５図は更に他の実施例の同様図である。Here, FIG. 1 is a partial longitudinal sectional front view showing one embodiment of the handpiece of the present invention, FIG. 2 is an enlarged view of the part indicated by ■ in FIG.
The figure is a perspective view of the main part, FIG. 4 is a similar view to FIG. 2 of another embodiment, and FIG. 5 is a similar view of still another embodiment.
第１図は、歯科用エアタービンハンドピースでの適用例
を示すものである。ハンドピース本体１は、接続部１３
を介して先側１１と基部側１２とに分断可能とされ、該
先側１１内には、作用媒体流通管路２として、エアター
ビン駆動用給気管路２１、患部噴射用給水管路２２、タ
ービン使用済みエアの排気管路（本体先側１１の管内自
体が排気管路とされている）２３が組み込まれている。FIG. 1 shows an example of application in a dental air turbine handpiece. The handpiece body 1 includes a connecting portion 13
The distal side 11 can be divided into a distal side 11 and a proximal side 12 through the distal side 11, and in the distal side 11, as a working medium distribution conduit 2, an air supply conduit 21 for driving an air turbine, a water supply conduit 22 for injection to the affected area, An exhaust pipe line 23 (the inside of the pipe on the front side 11 of the main body itself is used as an exhaust pipe line) for the turbine used air is incorporated.
一方基部側１２は、固定接手１２１を含んで螺合スリー
ブ１２２により上記先側１１に一体接合される。On the other hand, the base side 12 includes a fixed joint 121 and is integrally joined to the distal side 11 by a threaded sleeve 122.
この時、上記各流通管路２・・・は、固定接手１２１内
に形成された各管路２２２・・・等と連関され、基部側
１２の基端部に着脱可能に接続された可撓性チューブ先
端の接手１５内の供給管を経て操作ユニット（不図示、
電磁弁等が装備されている）に通じる。At this time, each of the above-mentioned circulation pipes 2... is linked to each pipe line 222... formed in the fixed joint 121, and is connected to a flexible pipe removably connected to the base end of the base side 12. The operation unit (not shown) is connected to the operation unit (not shown) through the supply pipe in the joint 15 at the tip of the sex tube.
(equipped with solenoid valves, etc.).
該可撓性チューブ先端の接手１５とハンドピース本体基
部側１２との接続は、ワンタッチで相互回動可能且つ相
互回動可能とされ、斯かる機能を保持して各作用媒体等
がハンドピース本体１に流通し得るようになされている
。The connection between the joint 15 at the tip of the flexible tube and the base side 12 of the handpiece body can be mutually rotated with a single touch, and this function is maintained so that each working medium can be connected to the handpiece body. It is designed so that it can be distributed to 1.
また、先側１１には導光体２４が内設され、その基端部
は上記接続部１３に於いて、基部側１２に内股されたラ
ンプ２４１に対面し、該ランプ２４１により発せられた
光は導光体２４を経てハンドピースヘッド部１４の照射
口２４２より患部に照射されるようになされている。Further, a light guide 24 is disposed inside the tip side 11, and its base end faces the lamp 241 that is placed inside the base side 12 at the connection part 13, and the light guide body 24 is provided with a light guide body 24, and the base end thereof faces the lamp 241 that is placed inside the base side 12 at the connection part 13. The light is irradiated onto the affected area from the irradiation port 242 of the handpiece head 14 through the light guide 24.
亦、給水管路２２は、上記先側１１の接続部１３からヘ
ッド部１４に亘って配設され、該管路２２より供給され
た水はその先端注水口２２１より患部に向は噴射される
。In addition, the water supply pipe 22 is arranged from the connection part 13 of the distal side 11 to the head part 14, and the water supplied from the pipe 22 is sprayed toward the affected area from the water injection port 221 at its tip. .
この給水管路２２の途中には、雑菌遮断手段としてボー
ル弁式の逆止弁３が介設されている。該逆止弁３は、第
２図及び第３図に示す如く、上記給水管路２２と基部側
１２に内設された給水管路２２２とを接続する接続管３
１と、他の管路２１及び導光体２４を挿入保持するディ
スク状ブツシュ部３２とを一体具備し、該接続管３１及
びブツシュ部３２は合成樹脂（例えば、テフロン等の滅
菌消毒可能な耐熱性樹脂）により一体成型して得られる
。A ball valve type check valve 3 is interposed in the middle of the water supply pipe 22 as a means for blocking germs. The check valve 3 is a connecting pipe 3 that connects the water supply pipe 22 and a water supply pipe 222 installed inside the base side 12, as shown in FIGS. 2 and 3.
1 and a disc-shaped bushing part 32 for inserting and holding another pipe 21 and a light guide 24, and the connecting pipe 31 and bushing part 32 are made of synthetic resin (for example, heat-resistant material such as Teflon that can be sterilized and disinfected). It is obtained by integrally molding it with a synthetic resin).
上記接続管３１には、その管内を軸線方向に沿って遊動
するボール３１１と、該ボール３１１と供給側で密着し
て弁座を兼ねる０リング３１２と、上記ボール３１１を
供給側に弾力付勢するスプリング３１３と、排出側で上
記給水管路２２の基端部を挿入保持するパイプホルダー
３１４とが内設され、これらボール３１１、スプリング
３１３及びＯリング３１２により逆止弁３が構成される
。The connecting pipe 31 includes a ball 311 that moves freely within the pipe along the axial direction, an O-ring 312 that comes into close contact with the ball 311 on the supply side and also serves as a valve seat, and an O-ring 312 that elastically biases the ball 311 toward the supply side. and a pipe holder 314 for inserting and holding the proximal end of the water supply pipe 22 on the discharge side, and these balls 311, springs 313, and O-rings 312 constitute the check valve 3.
該逆止弁３に於いては、接続管３１に接続された給水管
路２２２から給送される水の圧力により、ボール３１１
がスプリング３１３の弾力に抗して排出側に移行し、こ
の時Ｏリング３１２から離れて弁開となり、供給水はこ
の逆止弁３より給水管路２２を経て上記注水口２２１か
ら噴射される。そして、給水管路２２２からの水の供給
が停止されると、スプリング３１３の復元弾力によりボ
ール３１１が供給側に移行し、Ｏリング３１２に密着し
て弁閉となり、ここで給水管路２２２への水の逆流が阻
止される。従って、患部の各種雑菌は、この逆止弁３に
よって遮断され、基部側１２の給水管路２２２に侵入す
ることがないのである。回倒の場合、上記Ｏリング３１
３は、給水口より稍々排出側よりに設けられ。In the check valve 3, the ball 311
moves to the discharge side against the elasticity of the spring 313, and at this time it separates from the O-ring 312, opening the valve, and the supply water is injected from the water inlet 221 from the check valve 3 through the water supply pipe 22. . Then, when the water supply from the water supply pipe 222 is stopped, the ball 311 moves to the supply side due to the restoring elasticity of the spring 313, comes into close contact with the O-ring 312, closes the valve, and is then transferred to the water supply pipe 222. backflow of water is prevented. Therefore, various types of germs in the affected area are blocked by the check valve 3 and are prevented from entering the water supply pipe 222 on the base side 12. In case of rotation, the above O-ring 31
3 is installed slightly closer to the discharge side than the water supply port.
これにより閉弁時に給水口とボール３１１ との間に実
質的に小間隙３１５が確保される。この間隙３１５は、
給水圧をボール３１１に均等に負荷し、開弁を円滑なら
しめるべく機能するものであり、望ましく採用される。As a result, a small gap 315 is substantially secured between the water supply port and the ball 311 when the valve is closed. This gap 315 is
It functions to apply water supply pressure evenly to the balls 311 and smooth the opening of the valve, and is preferably adopted.
亦、基部側１２の給水管路２２２末端に、供給停止時に
作動する電磁弁の吸込手段（不図示）が付備されている
場合は、その吸込圧及び水の表面張力によってボール３
１１が前後移動して開閉の機能を奏することになるので
、この場合は上記スプリング３１３を特に必要としない
場合もある。In addition, if the end of the water supply pipe 222 on the base side 12 is equipped with a suction means (not shown) of a solenoid valve that operates when the supply is stopped, the suction pressure and the surface tension of the water will cause the ball 3 to
11 performs the opening/closing function by moving back and forth, the spring 313 may not be particularly necessary in this case.
上記ブツシュ部３２は、ハンドピース本体１の先側１１
管内に密嵌的に装着されるもので、上述の如く給気管路
２１及び導光体２４を挿入保持する貫通孔３２１，３２
２、タービン使用済みエアの排気孔３２３を貫設具備す
る。斯かるブツシュ部３２は、ハンドピース本体１の先
側１１後部より装着するだけで、管路２１．２２及び導
光体２４の位置決めがなされるので極めて便利である。The bushing portion 32 is connected to the front side 11 of the handpiece body 1.
The through holes 321 and 32 are fitted tightly into the pipe and insert and hold the air supply pipe 21 and the light guide 24 as described above.
2. An exhaust hole 323 for exhausting used turbine air is provided. Such a bushing part 32 is extremely convenient because it can position the conduits 21, 22 and the light guide 24 simply by attaching it from the rear of the distal end 11 of the handpiece body 1.
そして、該ブツシュ部３２の後端面には、同様に貫通孔
が開設されたゴム製シートパツキン３３が当てがわれ、
基部側１２内に配設された給水管路２２２、他の管路及
びランプ２４１と先側１１内の管路２１．２２．２３及
び導光体２４とが対応するよう、接続部１３を介して先
側１１及び基部側１２が螺合接続される。この螺合接続
の際に、ブツシュ部３２が先側１１管内の小径段部１１
１に当接し、螺合締め付けによる該ブツシュ部３２及び
パツキン３３の弾性変形により接続部１３のシールがな
される。尚、該接続部１３に於いて、上記排気孔３２３
に適当な工具を挿入して引き出すようにすれば、ブツシ
ュ部３２、接続管３１と共に逆止弁３を取り出すことが
でき、その交換が簡易になされる。亦、本実施例ではハ
ンドピース本体１の先側１１に雑菌遮断手段を設けた例
を示したが、基部側１２に設けてその接続部１３又はハ
ンドピース本体１と可撓性チューブ先端に設けた接手１
５との接続部１６より取り出し可能とすることも除外す
るものではない。Then, a rubber sheet packing 33 having a through hole in the same manner is applied to the rear end surface of the bushing part 32,
The water supply pipe 222, other pipes, and lamps 241 disposed in the base side 12 correspond to the pipes 21, 22, 23, and the light guide 24 in the tip side 11 through the connection part 13. The tip side 11 and the base side 12 are screwed together. At the time of this threaded connection, the bushing part 32
1, and the connecting portion 13 is sealed by elastic deformation of the bushing portion 32 and the packing 33 due to screw tightening. In addition, in the connection part 13, the exhaust hole 323
By inserting and pulling out a suitable tool, the check valve 3 can be taken out together with the bushing portion 32 and the connecting pipe 31, and replacement thereof can be easily performed. In addition, although this embodiment shows an example in which the germ blocking means is provided on the distal side 11 of the handpiece body 1, it may also be provided on the base side 12 and provided at the connecting portion 13 or between the handpiece body 1 and the flexible tube tip. joint 1
It is not excluded that it can be taken out from the connection part 16 with 5.
更に、第３図に於いては、上記排気孔３２３にカートリ
ッジ式に形成された雑菌遮断手段としての除菌若しくは
抗菌フィルター４が螺合装着可能とされている。前記の
如くハンドピース本体先側１１の管内は、タービン使用
済みエアの排気管路２３とされており、咳管路２３中の
排気エアは排気孔３２３を通り基部側１２及び可撓性チ
ューブ等を経て器外に排出されるが、該排気孔３２３に
斯かるフィルター４を装着しておけば排気経路が雑菌で
汚染されることが未然に防止される。Furthermore, in FIG. 3, a sterilization or antibacterial filter 4, which is formed in the form of a cartridge and serves as a germ-blocking means, can be screwed into the exhaust hole 323. As mentioned above, the inside of the pipe on the distal side 11 of the handpiece body is the exhaust pipe 23 for the turbine used air, and the exhaust air in the cough pipe 23 passes through the exhaust hole 323 and is discharged from the base side 12 and the flexible tube. However, if the filter 4 is attached to the exhaust hole 323, the exhaust route can be prevented from being contaminated with germs.
第４図は、上記ボール弁式逆止弁３の他に雑菌遮断手段
としての除菌若しくは抗菌フィルター４を給水管路２２
に併用した例を示すものである。FIG. 4 shows that in addition to the ball valve type check valve 3, a sterilization or antibacterial filter 4 is installed in the water supply pipe 22 as a means for blocking out various germs.
This shows an example in which it is used in combination with
このフィルター４は、前記フィルター材をカートリッジ
式に装填したもので、逆止弁３の前方給水管路２２の途
中に着脱可能に配設され、ヘッド部１４の注水口２２１
から逆流せんとする水中に含まれる雑菌をここで捕捉遮
断すると共に、供給側から給送される水中に含まれる雑
菌をも遮断して患部への噴射感染を未然に防止するべく
機能する。The filter 4 is loaded with the filter material in a cartridge type, and is removably disposed in the middle of the water supply pipe 22 in front of the check valve 3, and is attached to the water inlet 222 of the head portion 14.
It functions to capture and block bacteria contained in the water that is about to flow back from the water, and also to block bacteria contained in the water fed from the supply side to prevent injection infection to the affected area.
尚、該フィルター４の配設位置を逆止弁３と前後進にし
てもその機能は何等変るものではない、このように、フ
ィルター４と逆止弁３とを併用すれば雑菌遮断効果がよ
り完全となるが、該フィルター４を単独使用することも
除外するものではない。Note that even if the filter 4 is installed in a forward or backward position relative to the check valve 3, its function will not change in any way.In this way, if the filter 4 and the check valve 3 are used together, the effect of blocking out bacteria will be even greater. Although this is complete, it is not excluded that the filter 4 may be used alone.
この場合、フィルター４を上記同様ブツシュ部３２等と
一体的に形成し、ハンドピース本体１の先側１１に取外
し可能に装着し得るようになすことはもとより可能であ
る。In this case, it is of course possible to form the filter 4 integrally with the bushing portion 32 and the like as described above so that it can be removably attached to the distal end 11 of the handpiece body 1.
第５図は、雑菌遮断手段としてむしゴムタイプの逆止弁
５を用いた例を示すものである。即ち、上記同様の接続
管３１内に、前端が閉塞し且つ周体に透孔５１１が穿設
された注水管５１が形設され、該注水管５１にゴムチュ
ーブ５２が套嵌されて成る。そして注水管５１には給水
管路２２２が接続され、該給水管路２２２からの水圧に
より、上記ゴムチューブ５２が透孔５１１部において弾
性変形して水の通路が形成され、給水管路２２を経て通
水される。水の供給を停止すると、ゴムチューブ５２の
復元弾力により透孔５１１が閉塞されてその逆流が阻止
され、上記同様雑菌の給水管路２２２への侵入が有効に
防止される０本実施例でも、逆止弁５がブツシュ部３２
及び接続管３１と共に形成されており、従ってその機能
は上記と同様であるのでその詳細な説明を割愛する。FIG. 5 shows an example in which a bug-type check valve 5 is used as the germ-blocking means. That is, a water injection pipe 51 whose front end is closed and a through hole 511 is bored in the circumferential body is formed in the same connecting pipe 31 as described above, and a rubber tube 52 is fitted over the water injection pipe 51. A water supply pipe 222 is connected to the water supply pipe 51, and water pressure from the water supply pipe 222 causes the rubber tube 52 to elastically deform at the through hole 511, forming a water passage. After that, water is passed through. When the water supply is stopped, the restoring elasticity of the rubber tube 52 closes the through hole 511 and prevents its backflow, effectively preventing bacteria from entering the water supply pipe 222 as described above. The check valve 5 is connected to the bushing part 32
and the connecting pipe 31, and therefore its function is the same as described above, so a detailed explanation thereof will be omitted.
尚、上記実施例では、雑菌遮断手段を給水管路２２に設
けた例を示したが、他の管路に設けても同様の効果が得
られることは云うまでもない、亦、エアタービンハンド
ピースでの適用例について述べたが、水や空気等の作用
媒体を用いるマイクロモーターハンドピース、各種シリ
ンジ或いはスケーラ−等にも適用可能であることは当然
である。In the above embodiment, an example was shown in which the germ blocking means was provided in the water supply pipe 22, but it goes without saying that the same effect can be obtained even if it is provided in other pipes. Although an example of application to a piece has been described, it is of course applicable to micro motor hand pieces, various syringes, scalers, etc. that use working media such as water or air.
（発明の効果）
叙上の如く、本発明の歯科用防菌ハンドピースは、ハン
ドピース本体に内蔵された作用媒体の流通管路に雑菌遮
断手段が配設されているから、患部が保有する雑菌がこ
の雑菌遮断手段によって遮断され、該本体に接続される
可撓性チューブ内に侵入したり、操作ユニット等で繁殖
したりすることがなく、ハンドピース本体を滅菌消毒す
れば、その後これを別の患者に使用しても病原菌が二次
感染することがない。(Effects of the Invention) As described above, the dental antibacterial handpiece of the present invention has a means for blocking germs in the working medium distribution channel built into the handpiece body, so that no germs are retained in the affected area. This bacteria blocking means prevents bacteria from entering the flexible tube connected to the main body or breeding on the operating unit, etc., and once the handpiece main body is sterilized, it can be used afterwards. Even if used on another patient, there will be no secondary infection with pathogenic bacteria.
亦、上記雑菌遮断手段に、対応流通管路の接続管及び先
側管内に接続部側から密嵌され且つ他の管路等を保持す
るブツシュ部を一体具備させれば、管路等の位置決めが
簡易になされ、且つその交換等のメインテナンスに極め
て便利である。そして、ハンドピース本体を接続部を介
して先側及び基部側に分断可能として、この接続部にブ
ツシュ部と共に雑菌遮断手段を装着するようにすれば、
上記メンテナンスがより便利となる。In addition, if the bacteria blocking means is integrally provided with a bushing part that is tightly fitted into the connecting pipe and the distal pipe of the corresponding distribution pipe from the connecting part side and holds other pipes, etc., the positioning of the pipe, etc. This can be done easily and is extremely convenient for maintenance such as replacement. If the handpiece main body can be separated into a distal side and a proximal side via a connecting part, and a germ blocking means is attached to this connecting part together with a bushing part,
The above maintenance becomes more convenient.
更に、雑菌遮断手段として逆止弁及び除菌若しくは抗菌
フィルターを併用するようにすれば、上記雑菌の遮断が
完全になされる。Furthermore, if a check valve and a sterilization or antibacterial filter are used together as means for blocking out bacteria, the bacteria can be completely blocked.
このように、本発明は近時大きな社会問題とされている
歯科治療に於ける病原菌の二次感染を有効に防止せんと
するものであり、その価値は極めて大である。As described above, the present invention aims to effectively prevent secondary infections caused by pathogenic bacteria in dental treatment, which has recently become a major social problem, and is extremely valuable.
第１図は本発明ハンドピースの一実施例を示す部分縦断
正面図、第２図は第１図の■線部拡大図。
第３図は要部の斜視図、第４図は他の実施例の第２図と
同様図、第５図は更に他の実施例の同様図である。
（符号の説明）
１・・・ハンドピース本体、 １１・・・先側、 １２
・・・基部側、 １３・・・接続部、 １５・・・可
撓性チューブ先端の接手、 ２・・・作用媒体流通管路
、 ３．４．５・・・雑菌遮断手段、 ３１・・・接続
管、 ３２・・・ブツシュ部。
一以上一FIG. 1 is a partial longitudinal sectional front view showing an embodiment of the handpiece of the present invention, and FIG. 2 is an enlarged view of the portion indicated by ■ in FIG. 1. FIG. 3 is a perspective view of a main part, FIG. 4 is a view similar to FIG. 2 of another embodiment, and FIG. 5 is a similar view of still another embodiment. (Explanation of symbols) 1... Handpiece body, 11... Tip side, 12
...Base side, 13...Connection part, 15...Joint at the tip of flexible tube, 2...Working medium distribution conduit, 3.4.5...Bacteria blocking means, 31...・Connection pipe, 32...button part. one or more one
Claims (1)
歯科用ハンドピースに於いて、上記流通管路の途中に雑
菌遮断手段を配設してなることを特徴とする歯科用防菌
ハンドピース。 ２、上記ハンドピース本体が、接続部を介して先側と基
部側に分断可能とされ、且つ上記雑菌遮断手段が該接続
部より取り出し可能に配設されている請求項１記載のハ
ンドピース。 ３、上記雑菌遮断手段が、ハンドピース本体と、該本体
の後端に接続される可撓性チューブ先端に設けた接手と
の接続部より取り出し可能に配設されている請求項１記
載のハンドピース。 ４、上記雑菌遮断手段が、上記ハンドピース本体に配設
された対応流通管路を挿入し得る接続管と、ハンドピー
ス本体の管内に密嵌し得るディスク状ブッシュ部とを一
体具備して成るものである請求項１又は２記載のハンド
ピース。 ５、上記ブッシュ部が、ハンドピース本体に内蔵された
他の流通管路或いは附帯手段を保持し或いは前後に連関
させる為の貫通孔を有する請求項４記載のハンドピース
。 ６、上記雑菌遮断手段が、逆止弁である請求項１、２、
３、４又は５記載のハンドピース。 ７、上記雑菌遮断手段が、除菌若しくは抗菌フィルター
である請求項１、２、３、４、５又は６記載のハンドピ
ース。 ８、除菌フィルターが中空糸膜より成る請求項７記載の
ハンドピース。 ９、上記フィルターが、カートリッジタイプで且つ流通
管路に交換可能に配設されている請求項７又は８記載の
ハンドピース。 １０、上記フィルターと逆止弁とが同一流通管路に併用
されている請求項６又は７記載のハンドピース。[Scope of Claims] 1. A dental handpiece having a working medium flow channel built into the handpiece body, characterized in that a germ blocking means is disposed in the middle of the flow channel. Dental antibacterial handpiece. 2. The handpiece according to claim 1, wherein the handpiece main body is separable into a distal end and a proximal end via a connecting portion, and the germ blocking means is arranged to be removable from the connecting portion. 3. The hand according to claim 1, wherein the germ blocking means is arranged to be removable from a connecting portion between the handpiece body and a joint provided at the tip of a flexible tube connected to the rear end of the body. piece. 4. The germ blocking means is integrally equipped with a connecting pipe into which a corresponding flow pipe provided in the handpiece body can be inserted, and a disc-shaped bushing part that can be tightly fitted into the pipe of the handpiece body. The handpiece according to claim 1 or 2, which is a handpiece. 5. The handpiece according to claim 4, wherein the bushing portion has a through hole for holding another flow conduit or ancillary means built into the handpiece body or for linking the front and back. 6. Claims 1 and 2, wherein the germ blocking means is a check valve.
The handpiece according to 3, 4 or 5. 7. The handpiece according to claim 1, 2, 3, 4, 5 or 6, wherein the germ blocking means is a sterilization or antibacterial filter. 8. The handpiece according to claim 7, wherein the sterilization filter is made of a hollow fiber membrane. 9. The handpiece according to claim 7 or 8, wherein the filter is of a cartridge type and is replaceably disposed in the flow conduit. 10. The handpiece according to claim 6 or 7, wherein the filter and the check valve are used together in the same flow pipe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63108812A JPH078284B2 (en) | 1988-04-30 | 1988-04-30 | Dental antibacterial handpiece |
| DE19893906063 DE3906063A1 (en) | 1988-04-30 | 1989-02-27 | Dental handpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63108812A JPH078284B2 (en) | 1988-04-30 | 1988-04-30 | Dental antibacterial handpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01280452A true JPH01280452A (en) | 1989-11-10 |
| JPH078284B2 JPH078284B2 (en) | 1995-02-01 |
Family
ID=14494124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63108812A Expired - Fee Related JPH078284B2 (en) | 1988-04-30 | 1988-04-30 | Dental antibacterial handpiece |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH078284B2 (en) |
| DE (1) | DE3906063A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014180581A (en) * | 2013-03-20 | 2014-09-29 | W & H Dentalwerk Buermoos Gmbh | Filter cartridge for medical, in particular dental coupling means |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0631708U (en) * | 1992-10-09 | 1994-04-26 | 株式会社中西歯科器械製作所 | Dental handpiece device |
| NL1006137C2 (en) * | 1997-05-27 | 1998-12-01 | Prime Water Systems N V | Ultrafiltration device. |
| DE10108565A1 (en) | 2001-02-22 | 2002-09-05 | Kaltenbach & Voigt | Medical or dental treatment instrument with a filter element |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6260550A (en) * | 1985-09-11 | 1987-03-17 | 塚田 洋四郎 | Apparatus for preventing internal contamination of handpiece |
| JPS6270507U (en) * | 1985-10-24 | 1987-05-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH632405A5 (en) * | 1979-11-16 | 1982-10-15 | David Mosimann | Anti-back for turbines and dental handpieces. |
| DE2951411A1 (en) * | 1979-12-20 | 1981-07-02 | Richard 8757 Karlstein Himmelsbach | FILTRATION DEVICE FOR THE BACTERIAL DISinfection of COOLING LIQUID IN ORGANIC SURGICAL DEVICES |
| DE3123390C2 (en) * | 1981-06-12 | 1986-01-23 | Siemens AG, 1000 Berlin und 8000 München | Dental instrument head |
| DE3545496A1 (en) * | 1985-12-20 | 1987-07-02 | Siemens Ag | DENTAL EQUIPMENT |
-
1988
- 1988-04-30 JP JP63108812A patent/JPH078284B2/en not_active Expired - Fee Related
-
1989
- 1989-02-27 DE DE19893906063 patent/DE3906063A1/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6260550A (en) * | 1985-09-11 | 1987-03-17 | 塚田 洋四郎 | Apparatus for preventing internal contamination of handpiece |
| JPS6270507U (en) * | 1985-10-24 | 1987-05-06 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014180581A (en) * | 2013-03-20 | 2014-09-29 | W & H Dentalwerk Buermoos Gmbh | Filter cartridge for medical, in particular dental coupling means |
| JP2016185370A (en) * | 2013-03-20 | 2016-10-27 | ヴェー ウント ハー デンタルヴェルク ビュールモース ゲーエムベーハー | Filter cartridge for medical, in particular dental coupling means |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH078284B2 (en) | 1995-02-01 |
| DE3906063A1 (en) | 1989-11-09 |
| DE3906063C2 (en) | 1992-07-02 |
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