JP2001321391A - Dental handpiece - Google Patents
Dental handpieceInfo
- Publication number
- JP2001321391A JP2001321391A JP2000141592A JP2000141592A JP2001321391A JP 2001321391 A JP2001321391 A JP 2001321391A JP 2000141592 A JP2000141592 A JP 2000141592A JP 2000141592 A JP2000141592 A JP 2000141592A JP 2001321391 A JP2001321391 A JP 2001321391A
- Authority
- JP
- Japan
- Prior art keywords
- water
- cutting tool
- air
- injection hole
- jet
- 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
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は回転切削工具の切削
作用面に対して注水冷却する機能を有する歯科用ハンド
ピースに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental handpiece having a function of pouring and cooling a cutting working surface of a rotary cutting tool.
【０００２】[0002]
【従来の技術】従来から歯科の治療において、回転切削
工具を挿着したハンドピースを用いて患部を削除するこ
とが行われているが、この治療では患部を削除する際に
切削による熱が発生するので、この熱が生体に悪影響を
及ぼさないようにすると同時に、切削により発生する切
り屑を排除するために、回転切削工具の切削作用面に水
と空気を混合して噴射していた。2. Description of the Related Art Conventionally, in a dental treatment, an affected part has been removed by using a handpiece having a rotary cutting tool inserted therein. In this treatment, heat is generated by cutting when the affected part is removed. Therefore, in order to prevent the heat from adversely affecting the living body and to remove chips generated by the cutting, water and air are mixed and jetted onto the cutting surface of the rotary cutting tool.
【０００３】前記従来のハンドピースとしては、例えば
実公平４−５００１５号公報に開示された歯科用ハンド
ピース、又は特開平２−２２８９５７号公報に開示され
た歯科用ハンドピースが公知である。As the conventional handpiece, for example, a dental handpiece disclosed in Japanese Utility Model Publication No. 4-50015 or a dental handpiece disclosed in JP-A-2-228957 is known.
【０００４】実公平４−５００１５号公報に開示された
歯科用ハンドピースは、図４に示されるように、ヘッド
５１にローター５２が内蔵され、その回転軸５３の軸心
に回転切削工具５４が装着され、ヘッド５１の切削工具
５４装着部近傍に切削工具５４の切削作用面に向かって
水と空気を同時に噴射する末広がりの筒状注水孔５５が
設けられている。[0004] In the dental handpiece disclosed in Japanese Utility Model Publication No. 4-50015, a rotor 52 is built in a head 51 and a rotary cutting tool 54 is mounted on the axis of a rotary shaft 53 as shown in FIG. A divergent cylindrical water injection hole 55 is provided near the mounting portion of the cutting tool 54 of the head 51 for injecting water and air toward the cutting action surface of the cutting tool 54 at the same time.
【０００５】一方、ハンドピース本体５６の内部には水
流路５７及び空気流路５８が設けられ、円内の図に示さ
れるように水流路５７は周溝５９に、空気流路５８は周
溝６０に接続され、周溝６０と周溝５９との間は小隙６
１を介して連通されていて、周溝５９内で水と空気が混
合し注水孔５５から霧状に噴射する構成となっている。
なお回転切削工具５４の切削作用面に対する噴射方向は
注水孔５５の傾斜角度Θ１及び開口角度Θ２を適宜に設
定することにより回転切削工具５４の全長にわたって噴
射することが可能となっている。On the other hand, a water flow path 57 and an air flow path 58 are provided inside the handpiece body 56, and as shown in the figure in the circle, the water flow path 57 is in the circumferential groove 59, and the air flow path 58 is in the circumferential groove. 60 and a small gap 6 between the circumferential groove 60 and the circumferential groove 59.
1 and water and air are mixed in the circumferential groove 59 and sprayed from the water injection hole 55 in the form of a mist.
The injection direction of the rotary cutting tool 54 to the cutting action surface can be injected over the entire length of the rotary cutting tool 54 by appropriately setting the inclination angle 傾斜 1 and the opening angle Θ2 of the water injection hole 55.
【０００６】特開平２−２２８９５７号公報に開示され
た歯科用ハンドピースは、図５に示されるように、ヘッ
ド７１内に形成された周溝７２に水流路７３が接続さ
れ、周溝７４に空気流路７５が接続され、周溝７４は周
溝７６を介して筒状の水噴射孔７７の出口に形成したリ
ング状の噴射孔７８に連通されていて、水と空気を同時
に霧状に噴射する構成となっている。この場合、空気は
リング状の噴射孔７８から円錐気流となって噴射される
ことによりこの円錐気流によるコアンダ効果にて水を切
削部に配向させ乱流を減少させるようになっている。[0006] In the dental handpiece disclosed in Japanese Patent Application Laid-Open No. 228957/1990, a water flow path 73 is connected to a circumferential groove 72 formed in a head 71 as shown in FIG. An air flow path 75 is connected, and the circumferential groove 74 is communicated with a ring-shaped injection hole 78 formed at the outlet of the cylindrical water injection hole 77 through the circumferential groove 76 so that water and air are simultaneously atomized. It is configured to inject. In this case, the air is jetted from the ring-shaped jet hole 78 as a conical airflow, so that water is directed to the cutting portion by the Coanda effect of the conical airflow, thereby reducing turbulent flow.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、前記実
公平４−５００１５号公報に開示された歯科用ハンドピ
ースの場合は、周溝５９内にて水と空気を混合した後に
末広がりの筒状注水孔５５から霧状に噴射する構成であ
ることにより、周溝５９内における水と空気の混合状態
によっては水の噴射量にむらが生じやすいという問題が
ある。However, in the case of the dental handpiece disclosed in the above-mentioned Japanese Utility Model Publication No. 4-50015, a cylindrical water injection hole which expands after water and air are mixed in the circumferential groove 59. With the configuration in which the water is injected in the form of a mist from the nozzle 55, there is a problem that the water injection amount is likely to be uneven depending on the mixing state of water and air in the circumferential groove 59.
【０００８】また特開平２−２２８９５７号公報に開示
された歯科用ハンドピースの場合は、円錐気流のコアン
ダ効果により水を切削部に集中配向させるものであり、
噴射方向を変化させて広い範囲に水を噴射することが不
可能であり、例えば長い切削作用面を有する回転切削工
具の全長に対して平均的に水を噴射することが困難であ
るという問題がある。In the case of the dental handpiece disclosed in Japanese Patent Application Laid-Open No. 2-228957, water is concentrated and oriented to the cutting portion by the Coanda effect of a conical air flow.
It is impossible to spray water over a wide range by changing the spraying direction. For example, it is difficult to spray water on the entire length of a rotary cutting tool having a long cutting surface. is there.
【０００９】よって本発明は前記問題点に鑑みてなされ
たものであり、様々な形状の回転切削工具における切削
作用面の全面に平均に水噴射することができる歯科用ハ
ンドピースの提供を目的とする。Accordingly, the present invention has been made in view of the above problems, and has as its object to provide a dental handpiece capable of evenly spraying water over the entire surface of a cutting operation surface of a rotary cutting tool having various shapes. I do.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するた
め、本発明の請求項１に係る歯科用ハンドピースは、ヘ
ッド部に装着した回転切削工具の切削作用面に水を噴射
しつつ歯科治療を行うハンドピースにおいて、回転切削
工具を挿着したヘッド部に複数の水噴射孔を形成すると
ともに、該水噴射孔の噴射方向を切削工具の切削作用面
に対して一定角度に設定し、かつ該水噴射孔の噴射方向
に対して噴射方向が斜めに交差する空気噴射孔を該水噴
射孔に隣接して形成することにより、水の噴射方向を空
気の噴射圧力にて変化させ前記切削工具の所望の切削作
用面に水噴射することを特徴とするものである。To achieve the above object, a dental handpiece according to a first aspect of the present invention provides a dental treatment while spraying water onto a cutting action surface of a rotary cutting tool mounted on a head. In the handpiece performing the above, while forming a plurality of water injection holes in the head portion with the rotary cutting tool inserted, the injection direction of the water injection holes is set at a constant angle with respect to the cutting action surface of the cutting tool, and By forming an air injection hole whose injection direction obliquely intersects with the injection direction of the water injection hole adjacent to the water injection hole, the water injection direction is changed by the air injection pressure, and the cutting tool is used. And water is sprayed onto a desired cutting action surface.
【００１１】請求項１に係る歯科用ハンドピースによれ
ば、一定角度にて噴射する水の噴射方向に対して斜めに
交わる方向に空気を噴射することにより空気の噴射圧力
にて水の噴射方向を変化させ、長い切削作用面を有する
回転切削工具の広い範囲に水噴射することが可能とな
る。According to the dental handpiece according to the first aspect of the present invention, the air is sprayed in a direction obliquely intersecting with the water spraying direction at a fixed angle, so that the water spraying direction is achieved by the air spraying pressure. And water can be sprayed over a wide range of a rotary cutting tool having a long cutting action surface.
【００１２】請求項２に係る歯科用ハンドピースは、一
定角度に設定した前記水噴射孔の噴射方向に対して各種
角度にて交わる方向に噴射する空気噴射孔を水噴射孔に
隣接して形成するとともに、該水噴射孔と該水噴射孔に
隣接して形成した空気噴射孔の対を回転切削工具を中心
にして複数箇所に形成したことを特徴とするものであ
る。According to a second aspect of the present invention, there is provided a dental handpiece, wherein an air injection hole is formed adjacent to the water injection hole for injection in a direction intersecting the injection direction of the water injection hole set at a fixed angle at various angles. In addition, a pair of the water injection hole and the air injection hole formed adjacent to the water injection hole is formed at a plurality of locations around the rotary cutting tool.
【００１３】請求項２に係る歯科用ハンドピースによれ
ば、互いに噴射方向が交わる方向にかつ隣接して形成し
た水噴射孔と空気噴射孔との対を回転切削工具を中心に
複数箇所に設けることにより、複数箇所から切削作用面
の周囲に水噴射することが可能となり、患部の冷却及び
切削屑の排除効果を高めることが可能となる。According to the dental handpiece of the second aspect, a pair of water injection holes and air injection holes formed adjacent to each other in the direction in which the injection directions intersect with each other is provided at a plurality of positions around the rotary cutting tool. This makes it possible to spray water from a plurality of locations to the periphery of the cutting action surface, and it is possible to enhance the effects of cooling the affected part and removing cutting chips.
【００１４】請求項３に係る歯科用ハンドピースは、前
記水噴射孔から噴射する水圧と前記空気噴射孔から噴射
する空圧との相対的圧力を変化させることにより回転切
削工具の長手方向に対する水の噴射方向を自在に変化さ
せることを特徴とするものである。According to a third aspect of the present invention, there is provided a dental handpiece, wherein water relative to a longitudinal direction of the rotary cutting tool is changed by changing a relative pressure between a water pressure injected from the water injection hole and an air pressure injected from the air injection hole. Is characterized by freely changing the injection direction.
【００１５】請求項３に係る歯科用ハンドピースによれ
ば、噴射する水と空気の相対的圧力を変化させて水の噴
射方向を自在に変化させることにより、各種形状の回転
切削工具の形状に対応して切削作用面に効率的に噴射す
ることが可能となる。According to the dental handpiece according to the third aspect, the relative pressure between the water and the air to be sprayed is changed to freely change the spraying direction of the water, so that the rotary cutting tool can have various shapes. Correspondingly, it is possible to efficiently spray the cutting action surface.
【００１６】[0016]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１から図３は本発明の実施の形
態に係り、図１は歯科用ハンドピースの頭部断面図、図
２は歯科用ハンドピースの頭部斜視図、図３は歯科用ハ
ンドピースの全体を示す側面図である。Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 relate to an embodiment of the present invention, FIG. 1 is a cross-sectional view of the head of a dental handpiece, FIG. 2 is a perspective view of the head of a dental handpiece, and FIG. FIG.
【００１７】本発明の歯科用ハンドピースは、図３に示
されるようにハンドピース本体１の一端に図示しない回
転機構を内蔵するヘッド部２を備え、内蔵する回転機構
の回転中心に回転切削工具３が着脱自在に装着される構
成となっている。As shown in FIG. 3, the dental handpiece of the present invention includes a head portion 2 having a built-in rotating mechanism (not shown) at one end of a main body 1 of the handpiece, and a rotary cutting tool provided at the center of rotation of the built-in rotating mechanism. 3 is detachably mounted.
【００１８】この詳細な構造として、前記ヘッド部２
は、図１に示されるように上下のベアリング４により回
転自在に軸支された回転軸５を中心に空気圧にて回転す
るローター６が内蔵され、回転軸５の下端に前記回転切
削工具３が着脱自在に装着されている。As the detailed structure, the head 2
As shown in FIG. 1, a rotor 6 that rotates by air pressure around a rotating shaft 5 rotatably supported by upper and lower bearings 4 is built in, and the rotary cutting tool 3 is provided at a lower end of the rotating shaft 5. It is attached detachably.
【００１９】また、ヘッド部２の下面にはリング７がナ
ット８を介して固定されており、リング７の下面におけ
る外側に水噴射孔９が形成され、水噴射孔９に隣接した
内側に空気噴射孔１０が形成されている。一方、ハンド
ピース本体１側には水流路１１及び空気流路１２が設け
られ、水噴射孔９はヘッド部２側に形成された周溝１３
を介して水流路１１に接続され、空気噴射孔１０は周溝
１４を介して空気流路１２に接続されている。なお、図
中の符号１５はパッキンを示す。A ring 7 is fixed to the lower surface of the head portion 2 via a nut 8, and a water injection hole 9 is formed on the outer surface of the lower surface of the ring 7. An injection hole 10 is formed. On the other hand, a water flow path 11 and an air flow path 12 are provided on the handpiece body 1 side, and the water injection hole 9 is formed in a circumferential groove 13 formed on the head section 2 side.
The air injection hole 10 is connected to the air flow path 12 via the circumferential groove 14. In addition, the code | symbol 15 in a figure shows packing.
【００２０】前記水噴射孔９及び隣接した空気噴射孔１
０は対をなし工具３を中心とした同芯円上の複数箇所に
設けられている。そして複数箇所に設けられた総ての水
噴射孔９の回転軸に対する角度はａ＝ａ′の一定角度に
設定され、空気噴射孔１０のそれぞれは回転軸に対して
ｂ又はｃ等の異なる角度に設定されていて、水の噴射方
向１６と空気の噴射方向１７とが交点Ｐ，Ｑ等にて交差
するようになっている。The water injection hole 9 and the adjacent air injection hole 1
Numerals 0 are provided at a plurality of locations on a concentric circle centered on the tool 3 as a pair. The angles of all the water injection holes 9 provided at a plurality of positions with respect to the rotation axis are set to a constant angle of a = a ', and each of the air injection holes 10 has a different angle with respect to the rotation axis such as b or c. And the water jetting direction 16 and the air jetting direction 17 intersect at intersections P, Q, and the like.
【００２１】なお、対をなした水噴射孔９と空気噴射孔
１０は、回転切削工具３を中心とした同芯円上の複数箇
所にて対向配置することが望ましいが対向配置に限るも
のではない。The water injection hole 9 and the air injection hole 10 which make a pair are preferably arranged to face each other at a plurality of locations on a concentric circle centered on the rotary cutting tool 3, but are not limited to the opposed arrangement. Absent.
【００２２】以上の構成の歯科用ハンドピースは、使用
に際して図示しない圧力源にて加圧された水と空気がハ
ンドピース本体１の水流路１１び空気流路１２のそれぞ
れを経てヘッド部２側に供給され、供給された圧力水は
周溝１３に導入され、周溝１３に連通した複数の水噴射
孔９から噴射される。一方、圧力空気は周溝１４に導入
され、周溝１４に連通した複数の空気噴射孔１０から噴
射される。この場合、回転工具３を中心にして外側の設
けられた水噴射孔９から噴射する水噴射１６と内側に隣
接した設けられた空気噴射孔１０から噴射する空気噴射
１７とが点Ｐ及びＱにて交差し、内側から噴射する空気
噴射１７の圧力にて水噴射１６の方向が外側に押し出さ
れることにより、水の噴射範囲がＲ又はＳで示される範
囲に拡散される。In the dental handpiece having the above-described structure, water and air pressurized by a pressure source (not shown) at the time of use are supplied to the head part 2 through the water flow path 11 and the air flow path 12 of the handpiece body 1 respectively. , And the supplied pressure water is introduced into the circumferential groove 13 and is sprayed from the plurality of water injection holes 9 communicating with the circumferential groove 13. On the other hand, the pressurized air is introduced into the circumferential groove 14 and is injected from the plurality of air injection holes 10 communicating with the circumferential groove 14. In this case, the water jet 16 jetted from the water jet hole 9 provided on the outer side with respect to the rotary tool 3 and the air jet 17 jetted from the air jet hole 10 provided on the inner side at the points P and Q. When the direction of the water jet 16 is pushed outward by the pressure of the air jet 17 jetted from the inside, the water jet range is diffused to the range indicated by R or S.
【００２３】さらに、本発明の歯科用ハンドピースに供
給する水及び空気の相対的噴射圧力を変化させることに
より前記水噴射のＲまたはＳにて示される拡散範囲を自
在に変化させることができ、各種形状の回転切削工具の
切削作用面に対応して効率的に水噴射することが可能と
なる。Further, by changing the relative injection pressure of water and air supplied to the dental handpiece of the present invention, the diffusion range of the water injection indicated by R or S can be freely changed, Water can be efficiently sprayed corresponding to the cutting action surface of the rotary cutting tool having various shapes.
【００２４】[0024]
【発明の効果】本発明によれば、水噴射孔と空気噴射孔
の双方から噴射するそれぞれの噴射方向が斜めに交差す
る構成にしたことにより、空気の噴射圧力にて水の噴射
方向を変化させ、水の噴射方向を拡散することが可能と
なり、長い切削作用面を有する回転切削工具の全長に対
して平均的に水噴射することが可能となる。According to the present invention, since the respective injection directions of the water injection holes and the air injection holes obliquely intersect, the water injection direction can be changed by the air injection pressure. As a result, the direction of water jetting can be diffused, and water can be jetted on average over the entire length of the rotary cutting tool having a long cutting surface.
【００２５】また、ハンドピースに供給する空気圧又は
水圧を相対的に変化させることにより水の噴射方向を自
在に変化させることができるので、長さの異なる各種形
状の回転切削工具の切削作用面に対して効率的な水噴射
を行うことが可能となる。Further, since the direction of jetting water can be freely changed by relatively changing the air pressure or the water pressure supplied to the handpiece, the cutting action surface of the rotary cutting tools of various shapes having different lengths can be formed. In contrast, efficient water injection can be performed.
【００２６】以上により治療時に患部に発生する熱及び
削り屑を効率的にかつ確実に除去することでき、発生熱
による生体への悪影響を防止し、治療効率を向上させる
ことが可能となる。As described above, the heat and shavings generated in the affected area during the treatment can be efficiently and reliably removed, the adverse effect on the living body due to the generated heat can be prevented, and the treatment efficiency can be improved.
【図１】本発明の実施の形態に係る歯科用ハンドピース
の頭部断面図である。FIG. 1 is a head sectional view of a dental handpiece according to an embodiment of the present invention.
【図２】歯科用ハンドピースの頭部斜視図である。FIG. 2 is a perspective view of the head of a dental handpiece.
【図３】歯科用ハンドピースの全体を示す側面図であ
る。FIG. 3 is a side view showing the entire dental handpiece.
【図４】従来のハンドピースの説明図である。FIG. 4 is an explanatory view of a conventional handpiece.
【図５】従来のハンドピースの説明図である。FIG. 5 is an explanatory view of a conventional handpiece.
１ ハンドピース本体 ２ ヘッド部 ３ 回転切削工具 ４ ベアリング ５ 回転軸 ６ ローター ７ リング ８ ナット ９ 水噴射孔 １０ 空気噴射孔 １１ 水流路 １２ 空気流路 １３，１４ 周溝 １５ パッキン １６ 水噴射方向 １７ 空気噴射方向 DESCRIPTION OF SYMBOLS 1 Handpiece main body 2 Head part 3 Rotating cutting tool 4 Bearing 5 Rotating shaft 6 Rotor 7 Ring 8 Nut 9 Water injection hole 10 Air injection hole 11 Water flow path 12 Air flow paths 13, 14 Peripheral groove 15 Packing 16 Water injection direction 17 Air Injection direction
Claims (3)
作用面に水を噴射しつつ歯科治療を行うハンドピースに
おいて、 回転切削工具を挿着したヘッド部に複数の水噴射孔を形
成するとともに、該水噴射孔の噴射方向を切削工具の切
削作用面に対して一定角度に設定し、かつ該水噴射孔の
噴射方向に対して噴射方向が斜めに交差する空気噴射孔
を該水噴射孔に隣接して形成することにより、水の噴射
方向を空気の噴射圧力にて変化させ前記切削工具の所望
の切削作用面に水噴射することを特徴とする歯科用ハン
ドピース。1. A handpiece for performing dental treatment while spraying water on a cutting action surface of a rotary cutting tool mounted on a head portion, wherein a plurality of water injection holes are formed in a head portion on which the rotary cutting tool is inserted. The jet direction of the water injection hole is set to a fixed angle with respect to the cutting action surface of the cutting tool, and the air injection hole whose injection direction obliquely intersects the injection direction of the water injection hole is the water injection hole. A dental handpiece formed by being formed adjacent to the cutting tool so as to change a water jetting direction by an air jetting pressure and jet water onto a desired cutting action surface of the cutting tool.
方向に対して各種角度にて交わる方向に噴射する空気噴
射孔を水噴射孔に隣接して形成するとともに、該水噴射
孔と該水噴射孔に隣接して形成した空気噴射孔の対を回
転切削工具を中心にして複数箇所に形成したことを特徴
とする請求項１記載の歯科用ハンドピース。2. An air injection hole for jetting in a direction intersecting at various angles with respect to an injection direction of the water injection hole set at a constant angle is formed adjacent to the water injection hole, and the water injection hole and the air injection hole are formed. 2. The dental handpiece according to claim 1, wherein a pair of air injection holes formed adjacent to the water injection holes are formed at a plurality of positions around the rotary cutting tool.
気噴射孔から噴射する空圧との相対的圧力を変化させる
ことにより回転切削工具の長手方向に対する水の噴射方
向を自在に変化させることを特徴とする請求項１，２又
は３記載の歯科用ハンドピース。3. A water jet direction with respect to a longitudinal direction of a rotary cutting tool can be freely changed by changing a relative pressure between a water pressure jetted from the water jet hole and an air pressure jetted from the air jet hole. The dental handpiece according to claim 1, 2, or 3, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000141592A JP4381563B2 (en) | 2000-05-15 | 2000-05-15 | Dental handpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000141592A JP4381563B2 (en) | 2000-05-15 | 2000-05-15 | Dental handpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001321391A true JP2001321391A (en) | 2001-11-20 |
| JP4381563B2 JP4381563B2 (en) | 2009-12-09 |
Family
ID=18648682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000141592A Expired - Lifetime JP4381563B2 (en) | 2000-05-15 | 2000-05-15 | Dental handpiece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4381563B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011020730A1 (en) * | 2009-08-19 | 2011-02-24 | Unilever Nv | A process for cleaning teeth |
| JP2011097984A (en) * | 2009-11-04 | 2011-05-19 | Morita Mfg Co Ltd | Medical handpiece |
| US8685174B2 (en) | 2009-08-19 | 2014-04-01 | Conopco, Inc. | Process for cleaning hard surfaces |
| JP2014090892A (en) * | 2012-11-05 | 2014-05-19 | Yoshida Dental Mfg Co Ltd | Cartridge type dental handpiece |
| US8910889B2 (en) | 2009-08-19 | 2014-12-16 | Conopco, Inc. | Process and a device to clean substrates |
| WO2017001879A1 (en) * | 2015-07-02 | 2017-01-05 | Hamad Abuhaimed | Dental hanpiece comprising a peltier element or thermo-electric cooler to cool the dental burr |
-
2000
- 2000-05-15 JP JP2000141592A patent/JP4381563B2/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011020730A1 (en) * | 2009-08-19 | 2011-02-24 | Unilever Nv | A process for cleaning teeth |
| JP2013502251A (en) * | 2009-08-19 | 2013-01-24 | ユニリーバー・ナームローゼ・ベンノートシヤープ | How to clean teeth |
| AU2010285110B2 (en) * | 2009-08-19 | 2013-09-12 | Unilever Plc | A process for cleaning teeth |
| US8685174B2 (en) | 2009-08-19 | 2014-04-01 | Conopco, Inc. | Process for cleaning hard surfaces |
| US8800089B2 (en) | 2009-08-19 | 2014-08-12 | Conopco, Inc. | Process for cleaning teeth |
| US8910889B2 (en) | 2009-08-19 | 2014-12-16 | Conopco, Inc. | Process and a device to clean substrates |
| EA022112B1 (en) * | 2009-08-19 | 2015-11-30 | Юнилевер Н.В. | A device for cleaning teeth |
| JP2011097984A (en) * | 2009-11-04 | 2011-05-19 | Morita Mfg Co Ltd | Medical handpiece |
| JP2014090892A (en) * | 2012-11-05 | 2014-05-19 | Yoshida Dental Mfg Co Ltd | Cartridge type dental handpiece |
| WO2017001879A1 (en) * | 2015-07-02 | 2017-01-05 | Hamad Abuhaimed | Dental hanpiece comprising a peltier element or thermo-electric cooler to cool the dental burr |
| US10368959B2 (en) | 2015-07-02 | 2019-08-06 | Abuhaimed HAMAD | Dental handpiece comprising a peltier element or thermo-electric cooler to cool the dental burr |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4381563B2 (en) | 2009-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4958237B2 (en) | Sanitary ware shower head | |
| JP4653055B2 (en) | Nozzle for powder injection device for dental treatment | |
| JPH0811203B2 (en) | Ultra high pressure liquid ejector | |
| JP5186464B2 (en) | Medical handpiece | |
| JPH10234746A (en) | Air turbine hand piece | |
| JP4381563B2 (en) | Dental handpiece | |
| JP2011161023A (en) | Shower head | |
| JPH01153104A (en) | Hand spray | |
| JP4532534B2 (en) | Rotary spray nozzle | |
| US3255527A (en) | Air driven dental handpieces | |
| JPH02228957A (en) | Atomization of handpiece or angle piece for dental treatment device and apparatus with head of handpiece or angle piece for dental treatment device | |
| CN101213027B (en) | Shower head | |
| JPH0450015Y2 (en) | ||
| JP6195265B2 (en) | Cartridge type dental handpiece | |
| JP4540031B2 (en) | Rotating nozzle device for crushing concrete with water jet | |
| JPH0346743Y2 (en) | ||
| JP3541162B2 (en) | Nozzle for injecting dental treatment | |
| JP2011000498A (en) | Injection nozzle of washing machine | |
| JP2001314782A (en) | Spray nozzle | |
| JPH0137818Y2 (en) | ||
| JP2007007507A (en) | Coater and its rotary atomization head | |
| CN216464012U (en) | Plate type substrate surface oxide treatment device | |
| JP3854842B2 (en) | Rotating nozzle device for jet bath | |
| JP4567225B2 (en) | Air motor for air tools | |
| JP2000084026A (en) | Bubbling device for bathtub |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070511 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20090115 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090127 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090326 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20090824 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20090916 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121002 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 4381563 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131002 Year of fee payment: 4 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |