JP2004159740A - Attachment/detachment mechanism between head part and grip part, and dental handpiece using the same - Google Patents

Attachment/detachment mechanism between head part and grip part, and dental handpiece using the same Download PDF

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Publication number
JP2004159740A
JP2004159740A JP2002326551A JP2002326551A JP2004159740A JP 2004159740 A JP2004159740 A JP 2004159740A JP 2002326551 A JP2002326551 A JP 2002326551A JP 2002326551 A JP2002326551 A JP 2002326551A JP 2004159740 A JP2004159740 A JP 2004159740A
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JP
Japan
Prior art keywords
connection end
head
receptacle
attachment
groove
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.)
Pending
Application number
JP2002326551A
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Japanese (ja)
Inventor
Shosaku Kawada
庄作 川田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NAKANISHI KK
Original Assignee
NAKANISHI KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NAKANISHI KK filed Critical NAKANISHI KK
Priority to JP2002326551A priority Critical patent/JP2004159740A/en
Publication of JP2004159740A publication Critical patent/JP2004159740A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide an attachment/detachment mechanism between a head part and a grip part and a dental handpiece using the same reducing the number of components and relatively facilitating the manufacture and the assembling of the respective components. <P>SOLUTION: The attachment/detachment mechanism between the head part 30 and the grip part 20 is provided with a lock member 35 in a connecting end part 33 of the head part, a socket part 21 is formed with an engagement part 23 to be engaged with the lock member 35 and the grip part is formed with a hole 22 for operating the lock part engaged with the engagement part from the outside for releasing the engagement. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明はヘッド部と把持部の着脱機構及びこれを用いた歯科用ハンドピースに関する。
【0002】
【従来の技術】
歯科用ハンドピースには、圧縮空気により歯科処置工具を回転駆動させるエアタービン式のものと、モータ等の回転力をギアやシャフトにより伝達して歯科処置工具を回転駆動させるギア駆動式のものがある。歯科用ハンドピースは、両タイプともに切削刃などの歯科処置工具を受理して着脱自在に保持するスリーブを内蔵するヘッド部と、ヘッド部の後方に接続されて手指により把持される把持部とを備え、これらのヘッド部と把持部とは接続されて着脱装置により一体化されている。
【0003】
例えば、実公昭61−22582号公報(特許文献1)には、歯科用ハンドピースにおけるコントラヘッド着脱装置が記載されており、コントラヘッドと本体とがワンタッチ操作により着脱できるようになっている。すなわち、コントラヘッド側の後端部の周面にはボール受穴が設けられ、本体側にはボール覗き孔にボールが配置され、このボールがボール押えリング、押圧リング及びスプリングによりボール覗き孔から突き出たり、引き込まれるように構成されている。そして、コントラヘッドと本体のロック時には、ボールがボール覗き孔から突き出てボール受穴に係合している。
【0004】
【特許文献1】実公昭61−22582号公報
【0005】
【発明が解決しようとする課題】
以上の特許文献1に記載された着脱装置は、本体の外鞘の先端小径部に、これとは別の部品、すなわち、ボール、ボール押えリング、押圧リング及びスプリングを取り付けて構成されるため、部品の点数が多く、各部品の製作や組立てに手間が掛かり煩雑であるという課題がある。
【0006】
本発明は上記従来技術の欠点に着目し、これを解決せんとしたものであり、その課題は、部品の点数が少なく、各部品の製作や組立てが比較的容易に行なうことができるヘッド部と把持部との着脱機構及びこれを用いた歯科用ハンドピースを提供することにある。
【0007】
【課題を解決するための手段】
本発明では、歯科処理工具を着脱可能に受理するスリーブが回転可能に支承されたヘッド部と、該ヘッド部から延びる接続端部が挿着される受け口を備えた把持部との着脱機構であって、前記接続端部には係止部材が設けられ、前記受け口には前記係止部材が係合する係合部が形成され、前記係合部に係合された前記係止部を外部から操作して係合解除するための孔が把持部に形成され、前記係止部材は、前記受け口で押圧されると弾性変形して前記接続端部を前記受け口へ挿入する操作を可能にし、前記接続端部が所定位置まで挿入されると前記受け口による押圧が解除されて、前記係合部に前記係止部材が係合し、前記接続端部が前記受け口から抜けることを防止するように形成された着脱機構が提供される。
本発明では、係止部材だけが別部品として形成されて、これがヘッド部の接続端部に取り付けられ、係合部は受け口に形成され、操作孔は把持部に穿設されるので、特許文献1に記載された着脱装置に比べると、部品の点数は格段に少なく、製作や組立ての手間が容易になった。
【0008】
本発明では、前記係合部として前記受け口の内周面に溝を形成し、前記溝に係合するように突出する弾性部材を前記係止部材として前記接続端部に設け、前記接続端部には前記弾性部材が押圧力を受けて弾性変形したときに収容される溝を設けた構成にすることができる。
【0009】
また本発明では、前記弾性部材は、前記接続端部が着脱可能に嵌められる円弧状の嵌装部と、前記受け口の溝に係合する弾性突出片とを備えるように構成にすることができる。
【0010】
本発明のヘッド部と把持部との着脱機構は、エアタービン式及びギア駆動式のいずれの歯科用ハンドピースにも適用可能である。
【0011】
【発明の実施の態様】
以下、本発明の実施例を添付図面に基づいて説明するが、本発明はこれに限定されるものではない。
【0012】
図1は本発明の歯科用ハンドピース10の一実施態様であり、図2は図1を部分的に拡大し、部分的に破断して示した側面図であり、図5はヘッド部30の斜視図である。
歯科用ハンドピース10は、把持部20とヘッド部30とが接続されたエアタービン式のハンドピースである。
ヘッド部30には、歯科処理工具32を着脱可能に受理するスリーブ(図示せず)がケーシング31内に支承され、接続端部33が後方に延びるように設けられている。この接続端部33には突出片収容溝36aと円周溝36bとが刻設されており、ここに係止部材35が嵌められ、その前方にパッキングとしてのOリング34が環装されている。
【0013】
この係止部材35は、図4に示したように、円弧状に形成された嵌装部35bと、この嵌装部35bのほぼ中央から突出するように一体に形成された弾性突出片35aとを備え、弾性変形可能な薄板、例えば、厚さが数百ミクロン程度のステンレス鋼板などから形成される。嵌装部35bは、図5に示したように、接続端部33の円周溝36bに嵌められ、また弾性突出片35aは突出片収容溝36aに配置される。弾性突出片35aは、上から押圧力が作用していない状態では、突出片収容溝36aから外側に出ており、図2及び図5に示したように、その先端部分が最も外側に突出するように形成されており、逆に、上から押圧力が作用すると、弾性突出片35aは弾性変形して突出片収容溝36aに押し込まれ、接続端部33の外周面と同じ位置まで変位する。
なお、接続端部33には、図5に示したように、圧縮空気の排気管37a、スプレー用給気管37b、スプレー用給水管37c、圧縮空気の給気管37dが設けられ、一方、把持部20側にもこれら配管に対向する配管が設けられ、各配管どうしの配置により、ヘッド部30と把持部20の接続時における位置決めがなされる。
【0014】
把持部20には、その後端に連結部28が設けられ、前端にヘッド部30の接続端部33を挿着するための受け口21が設けられ、ここから若干内方へ進んだ内周面には係止部材35の弾性突出片35aが係合する係合部としての溝23が刻設され、さらに、内方へ進んだ位置にパッキング25が配置され、このパッキング25から突出するように給気管24、スプレー用給水管27、スプレー用給気管26、排気管(図示せず)が設けられている。また把持部20の先端には、図3に示したように孔22が穿設されており、この孔22は、弾性突出片35aが溝23に係合したときに、この弾性突出片35aの先端部分の上に位置するように設けられる。
【0015】
次に、本発明の着脱機構の作用について説明する。
図2ではヘッド部30が把持部20から外された状態が図示されており、このとき、図2及び図5に示したように、弾性突出片35aは接続端部33の外周面よりも外側に突出している。
以上のヘッド部30の接続端部33を把持部20の受け口21に挿入すると、受け口21の内周面により弾性突出片35aが押圧されて弾性変形し、接続端部33の突出片収容溝36aに弾性突出片35aが押し込まれ、接続端部33の外周面と同じ位置まで変位する。この変位により、接続端部33の受け口21への挿入操作が可能になる。ヘッド部30の接続端部33が、図1の状態まで挿入されると、受け口21による弾性突出片35aの押圧状態が解除されて、図3に示したように、弾性突出片35aの先端が溝23に係合し、この係合によりヘッド部30の接続端部33が受け口21から抜けることは防止される。
【0016】
逆に、把持部20からヘッド部30を引き抜く場合には、針のように先端が尖った工具を孔22から挿入し、弾性突出片35aを図3において二点鎖線で示した状態まで下方に押し込めば、弾性突出片35aの先端と溝23の係合状態は解除され、ヘッド部30を把持部20から引き抜くことが可能になる。
【0017】
次に、図6は図1とは異なる歯科用ハンドピース40を示す側面図である。
歯科用ハンドピース40は、モータ等の回転力をギアやシャフトにより伝達して歯科処置工具52を回転駆動させるギア駆動式のハンドピースであって、把持部60とヘッド部50とから構成される。この歯科用ハンドピース40においても、図1の歯科用ハンドピース10と同様に、ヘッド部50の接続端部53に形成された溝56a,56bに係止部材35が嵌められ、把持部60の受け口61の後方内周面に弾性突出片35aが係合する係合部としての溝(図示せず)が刻設され、この溝に係合された係止部材35の弾性突出片35aを外部から操作して係合解除するための孔(図示せず)が把持部60に形成されている。
したがって、歯科用ハンドピース40では、歯科処置工具52を回転駆動させるための機構が図1の歯科用ハンドピース10と異なるだけであり、把持部60とヘッド部50との着脱機構は、図1の歯科用ハンドピース10のものと同様の作用が得られるように同様に構成される。
【0018】
【発明の効果】
本発明によれば、着脱機構を構成する係止部材、係合部、係合解除するための孔のうち、係止部材だけがヘッド部や把持部とは別の部品として形成されるものであり、係合部は受け口に形成され、係合解除するための孔は把持部に穿設され、したがって、特許文献1に記載された着脱装置に比べると、部品の点数は格段に少なく、製作や組立ての手間が容易になる。
【図面の簡単な説明】
【図1】本発明の一実施態様である歯科用ハンドピースの側面図である。
【図2】図1を部分的に拡大し、部分的に破断して示した側面図である。
【図3】ヘッド部と把持部との接続部を部分的に示した断面図である。
【図4】弾性部材の一実施態様の斜視図である。
【図5】ヘッド部の斜視図である。
【図6】図1とは異なる一実施態様を示す側面図である。
従来例を示す断面図である。
【符号の説明】
10 歯科用ハンドピース
20 把持部
21 受け口
22 孔
23 係合部
30 ヘッド部
32 歯科処理工具
33 接続端部
35 係止部材
40 歯科用ハンドピース
50 ヘッド部
52 歯科処理工具
60 把持部
61 受け口
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an attachment / detachment mechanism for a head unit and a holding unit, and a dental handpiece using the same.
[0002]
[Prior art]
Dental handpieces include an air turbine type that rotationally drives a dental treatment tool with compressed air, and a gear driven type that rotationally drives a dental treatment tool by transmitting the rotational force of a motor or the like by a gear or shaft. is there. Both types of dental handpieces include a head portion having a built-in sleeve for receiving and removably holding a dental treatment tool such as a cutting blade, and a grip portion connected to the back of the head portion and gripped by a finger. The head unit and the grip unit are connected to each other and integrated by a detachable device.
[0003]
For example, Japanese Utility Model Publication No. Sho 61-22582 (Patent Document 1) describes a contra-head attaching / detaching device for a dental handpiece, and the contra-head and the main body can be attached / detached by one-touch operation. That is, a ball receiving hole is provided on the peripheral surface of the rear end portion of the contra head side, and a ball is disposed in a ball viewing hole on the main body side, and this ball is moved from the ball viewing hole by a ball holding ring, a pressing ring, and a spring. It is configured to protrude or retract. When the contra head and the main body are locked, the ball protrudes from the ball viewing hole and engages with the ball receiving hole.
[0004]
[Patent Document 1] Japanese Utility Model Publication No. Sho 61-22581
[Problems to be solved by the invention]
The attaching and detaching device described in Patent Literature 1 is configured by attaching another component, that is, a ball, a ball pressing ring, a pressing ring, and a spring to a small-diameter portion at the distal end of the outer sheath of the main body. There is a problem that the number of parts is large, and the production and assembly of each part is troublesome and complicated.
[0006]
The present invention focuses on the drawbacks of the prior art described above, and aims to solve the problem. The problem is that the number of parts is small, and the head and the head can be manufactured and assembled relatively easily. An object of the present invention is to provide a mechanism for attaching and detaching to and from a grip portion and a dental handpiece using the same.
[0007]
[Means for Solving the Problems]
According to the present invention, there is provided an attachment / detachment mechanism for a head portion on which a sleeve for detachably receiving a dental treatment tool is rotatably supported, and a grip portion provided with a socket into which a connection end extending from the head portion is inserted. A locking member is provided at the connection end, and an engaging portion with which the locking member is engaged is formed at the socket, and the locking portion engaged with the engaging portion is externally connected to the engaging portion. A hole for operating and disengaging is formed in the grip portion, and the locking member is elastically deformed when pressed by the receptacle to enable an operation of inserting the connection end into the receptacle, When the connection end is inserted to a predetermined position, the pressing by the socket is released, the locking member is engaged with the engagement portion, and the connection end is formed to prevent the connection end from falling out of the socket. Provided detachment mechanism is provided.
In the present invention, only the locking member is formed as a separate component, which is attached to the connection end of the head portion, the engaging portion is formed in the receptacle, and the operation hole is formed in the grip portion. Compared with the attachment / detachment device described in No. 1, the number of parts is remarkably small, and the production and assembling work is facilitated.
[0008]
In the present invention, a groove is formed in the inner peripheral surface of the receptacle as the engaging portion, and an elastic member projecting so as to be engaged with the groove is provided at the connection end as the locking member, May be provided with a groove for accommodating when the elastic member is elastically deformed by receiving a pressing force.
[0009]
In the present invention, the elastic member may be configured to include an arc-shaped fitting portion into which the connection end is detachably fitted, and an elastic protruding piece that engages with the groove of the socket. .
[0010]
The attachment / detachment mechanism for the head unit and the grip unit according to the present invention can be applied to both an air turbine type and a gear drive type dental handpiece.
[0011]
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited thereto.
[0012]
FIG. 1 shows an embodiment of the dental handpiece 10 of the present invention, FIG. 2 is a partially enlarged side view of FIG. 1, and FIG. It is a perspective view.
The dental handpiece 10 is an air turbine type handpiece in which the grip 20 and the head 30 are connected.
A sleeve (not shown) for detachably receiving the dental treatment tool 32 is supported on the head portion 30 within the casing 31, and a connection end portion 33 is provided so as to extend rearward. A protruding piece housing groove 36a and a circumferential groove 36b are formed in the connection end 33, and a locking member 35 is fitted in the groove 36a, and an O-ring 34 as a packing is annularly mounted in front of the locking member 35. .
[0013]
As shown in FIG. 4, the locking member 35 includes a fitting portion 35b formed in an arc shape and an elastic protruding piece 35a integrally formed so as to project from substantially the center of the fitting portion 35b. , And is formed from an elastically deformable thin plate, for example, a stainless steel plate having a thickness of about several hundred microns. As shown in FIG. 5, the fitting portion 35b is fitted in the circumferential groove 36b of the connection end 33, and the elastic projecting piece 35a is arranged in the projecting piece receiving groove 36a. When the pressing force is not applied from above, the elastic protruding piece 35a protrudes outward from the protruding piece accommodating groove 36a, and as shown in FIG. 2 and FIG. Conversely, when a pressing force acts from above, the elastic protruding piece 35a is elastically deformed and pushed into the protruding piece accommodating groove 36a, and is displaced to the same position as the outer peripheral surface of the connection end 33.
As shown in FIG. 5, the connection end 33 is provided with a compressed air exhaust pipe 37a, a spray air supply pipe 37b, a spray water supply pipe 37c, and a compressed air supply pipe 37d. Pipes facing these pipes are also provided on the side 20, and positioning of the head section 30 and the grip section 20 at the time of connection is performed by the arrangement of the respective pipes.
[0014]
The grip portion 20 is provided with a connecting portion 28 at a rear end thereof, and a receiving hole 21 for inserting a connection end portion 33 of the head portion 30 at a front end thereof. The groove 23 is formed as an engaging portion with which the elastic protruding piece 35a of the locking member 35 engages. Further, a packing 25 is disposed at a position inwardly extending, and the packing 25 is supplied so as to protrude from the packing 25. A trachea 24, a spray water supply pipe 27, a spray air supply pipe 26, and an exhaust pipe (not shown) are provided. 3, a hole 22 is formed at the tip of the grip portion 20, and the hole 22 is formed when the elastic projecting piece 35a is engaged with the groove 23. It is provided so as to be located on the tip portion.
[0015]
Next, the operation of the attachment / detachment mechanism of the present invention will be described.
FIG. 2 shows a state in which the head portion 30 is detached from the grip portion 20. At this time, as shown in FIGS. 2 and 5, the elastic protruding piece 35a is located outside the outer peripheral surface of the connection end portion 33. It protrudes.
When the connection end portion 33 of the head portion 30 is inserted into the receptacle 21 of the grip portion 20, the elastic protrusion 35 a is pressed by the inner peripheral surface of the receptacle 21 and is elastically deformed. The elastic protruding piece 35a is pushed into the connection end 33 and is displaced to the same position as the outer peripheral surface of the connection end 33. With this displacement, the insertion operation of the connection end 33 into the receptacle 21 becomes possible. When the connection end portion 33 of the head portion 30 is inserted to the state shown in FIG. 1, the pressing state of the elastic protruding piece 35a by the receiving port 21 is released, and as shown in FIG. The engagement with the groove 23 prevents the connection end 33 of the head portion 30 from falling out of the receptacle 21 by this engagement.
[0016]
Conversely, when pulling out the head portion 30 from the grip portion 20, a tool having a sharp tip such as a needle is inserted from the hole 22, and the elastic projecting piece 35a is lowered downward to the state shown by the two-dot chain line in FIG. When pushed, the engagement state between the tip of the elastic protruding piece 35a and the groove 23 is released, and the head portion 30 can be pulled out from the grip portion 20.
[0017]
Next, FIG. 6 is a side view showing a dental handpiece 40 different from FIG.
The dental handpiece 40 is a gear-driven handpiece that transmits a rotational force of a motor or the like by a gear or a shaft to rotationally drive the dental treatment tool 52, and includes a grip portion 60 and a head portion 50. . Also in this dental handpiece 40, similarly to the dental handpiece 10 of FIG. 1, the locking member 35 is fitted into the grooves 56 a and 56 b formed in the connection end 53 of the head 50, and A groove (not shown) as an engaging portion with which the elastic projecting piece 35a is engaged is formed in the rear inner peripheral surface of the receiving port 61, and the elastic projecting piece 35a of the locking member 35 engaged with this groove is externally mounted. A hole (not shown) is formed in the grip portion 60 to be disengaged by being operated from above.
Therefore, in the dental handpiece 40, only the mechanism for rotating and driving the dental treatment tool 52 is different from that of the dental handpiece 10 in FIG. 1, and the mechanism for attaching and detaching the grip part 60 and the head part 50 is similar to that in FIG. The configuration is the same so that the same operation as that of the dental handpiece 10 can be obtained.
[0018]
【The invention's effect】
According to the present invention, of the locking member, the engaging portion, and the hole for releasing the engagement constituting the attaching / detaching mechanism, only the locking member is formed as a separate component from the head portion and the grip portion. The engaging portion is formed in the receiving port, and the hole for releasing the engagement is formed in the holding portion. Therefore, the number of parts is significantly smaller than that of the attaching / detaching device described in Patent Literature 1, and And assembling work becomes easier.
[Brief description of the drawings]
FIG. 1 is a side view of a dental handpiece according to an embodiment of the present invention.
FIG. 2 is a partially enlarged side view of FIG. 1;
FIG. 3 is a sectional view partially showing a connection portion between a head portion and a grip portion.
FIG. 4 is a perspective view of one embodiment of an elastic member.
FIG. 5 is a perspective view of a head unit.
FIG. 6 is a side view showing an embodiment different from FIG. 1;
It is sectional drawing which shows a prior art example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Dental handpiece 20 Gripping part 21 Reception opening 22 Hole 23 Engagement part 30 Head part 32 Dental processing tool 33 Connection end part 35 Locking member 40 Dental handpiece 50 Head part 52 Dental processing tool 60 Gripping part 61 Reception opening

Claims (4)

歯科処理工具を着脱可能に受理するスリーブが回転可能に支承されたヘッド部と、該ヘッド部から延びる接続端部が挿着される受け口を備えた把持部との着脱機構であって、前記接続端部には係止部材が設けられ、前記受け口には前記係止部材が係合する係合部が形成され、前記係合部に係合された前記係止部を外部から操作して係合解除するための孔が把持部に形成され、
前記係止部材は、前記受け口で押圧されると弾性変形して前記接続端部を前記受け口へ挿入する操作を可能にし、前記接続端部が所定位置まで挿入されると前記受け口による押圧が解除されて、前記係合部に前記係止部材が係合し、前記接続端部が前記受け口から抜けることを防止するように形成された着脱機構。
An attachment / detachment mechanism for a head portion rotatably supported by a sleeve for detachably receiving a dental treatment tool, and a grip portion having a socket into which a connection end extending from the head portion is inserted. A locking member is provided at an end portion, and an engaging portion with which the locking member is engaged is formed at the socket, and the locking portion engaged with the engaging portion is operated from the outside to engage the locking portion. A hole for releasing the engagement is formed in the grip part,
The locking member is elastically deformed when pressed by the receptacle to enable the operation of inserting the connection end into the receptacle, and the pressing by the receptacle is released when the connection end is inserted to a predetermined position. And a detachable mechanism formed so that the engaging member is engaged with the engaging portion and the connecting end is prevented from falling out of the receptacle.
前記係合部として前記受け口の内周面に溝が形成され、前記溝に係合するように突出する弾性部材が前記係止部材として前記接続端部に設けられ、前記接続端部には前記弾性部材が押圧力を受けて弾性変形したときに収容される溝が設けられたことを特徴とする請求項1記載の着脱機構。A groove is formed in the inner peripheral surface of the receptacle as the engaging portion, and an elastic member projecting so as to be engaged with the groove is provided at the connection end as the locking member, and the connection end has 2. The attachment / detachment mechanism according to claim 1, wherein a groove is provided for accommodating when the elastic member is elastically deformed by receiving a pressing force. 前記弾性部材は、前記接続端部に着脱可能に嵌められる円弧状の嵌装部と、前記受け口の溝に係合する弾性突出片とを備えることを特徴とする請求項2記載の着脱機構。The attachment / detachment mechanism according to claim 2, wherein the elastic member includes an arc-shaped fitting portion detachably fitted to the connection end portion, and an elastic protruding piece that engages with a groove of the socket. 前記請求項1記載のヘッド部と把持部の着脱機構を備える歯科用ハンドピース。A dental handpiece comprising the mechanism for attaching and detaching the head part and the grip part according to claim 1.
JP2002326551A 2002-11-11 2002-11-11 Attachment/detachment mechanism between head part and grip part, and dental handpiece using the same Pending JP2004159740A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002326551A JP2004159740A (en) 2002-11-11 2002-11-11 Attachment/detachment mechanism between head part and grip part, and dental handpiece using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002326551A JP2004159740A (en) 2002-11-11 2002-11-11 Attachment/detachment mechanism between head part and grip part, and dental handpiece using the same

Publications (1)

Publication Number Publication Date
JP2004159740A true JP2004159740A (en) 2004-06-10

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Family Applications (1)

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JP2002326551A Pending JP2004159740A (en) 2002-11-11 2002-11-11 Attachment/detachment mechanism between head part and grip part, and dental handpiece using the same

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Country Link
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