WO2019082560A1 - 歯科用ハンドピース - Google Patents

歯科用ハンドピース

Info

Publication number
WO2019082560A1
WO2019082560A1 PCT/JP2018/034631 JP2018034631W WO2019082560A1 WO 2019082560 A1 WO2019082560 A1 WO 2019082560A1 JP 2018034631 W JP2018034631 W JP 2018034631W WO 2019082560 A1 WO2019082560 A1 WO 2019082560A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
handpiece
cutting tip
tip
vibration
Prior art date
Application number
PCT/JP2018/034631
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
岡本啓
Original Assignee
タカラベルモント株式会社
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 タカラベルモント株式会社 filed Critical タカラベルモント株式会社
Publication of WO2019082560A1 publication Critical patent/WO2019082560A1/ja

Links

Images

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
    • A61C1/02—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools
    • A61C1/07—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools with vibratory drive, e.g. ultrasonic
    • 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
    • A61C1/12—Angle hand-pieces

Definitions

  • the present invention relates to a vibrating dental handpiece.
  • a handpiece In dental care, handpieces are widely used for cutting or drilling teeth, removing tartar, polishing the tooth surface, etc., and cleaning the tooth surface (including interdental teeth).
  • a handpiece includes a rotary handpiece provided with an air turbine or an air motor, and a vibrating handpiece provided with a vibration source.
  • the rotary handpiece has high cutting power, but on rotation, the load on the patient's tooth surface and gums is also large, often causing pain to the patient.
  • a vibrating handpiece e.g., Patent Document 1 is superior to a rotary handpiece in non-invasiveness with respect to the affected area such as a gum during formation of a tooth surface.
  • the vibrating handpiece is inferior in cutting force to the rotary handpiece.
  • the cutting tip of the vibrating handpiece vibrates at the time of treatment, it is difficult to stably hold the tip of the tip at the treatment point. Therefore, during surgery with the vibratory handpiece, the operator directly fingers the periphery of the cutting tip for the purpose of eliminating the lack of cutting force and increasing the frictional force to the affected area and stably holding the treatment site. There is a case to cut by pressing.
  • the cutting tip has a hook shape or the like, and the portion which the operator presses with a finger is narrow. Therefore, the cutting tip can not be sufficiently pressed, and the cutting force of the vibrating handpiece can not be increased.
  • the entire end portion of the cutting tip vibrates, and thus the vibration of the cutting tip may be affected by the finger touching the portion. That is, when the operator directly presses the vibrating end portion, the vibration is transmitted to the operator's finger and the operator feels uncomfortable, and the operator's finger absorbs the vibration to cut the vibrating handpiece. There is also a possibility that the power may decrease.
  • the characteristic configuration of the dental handpiece according to the present invention includes a handpiece body incorporating a vibration source, a cutting tip attached to the tip of the handpiece body, to which vibration from the vibration source is transmitted.
  • a cylindrical cover body removably attached to the handpiece body and covering the cutting tip in a state in which the vibration of the vibration source is not transmitted; and the cover body is a base of the cutting tip
  • the cover body covering the cutting tip is provided.
  • the operator can operate the dental handpiece in a state in which the finger is in contact with the cover body, so that the cutting force of the cutting tip can be easily increased.
  • the cover that covers the cutting tip is attached to the handpiece body in a state in which the vibration of the vibration source is not transmitted, even if the operator's finger contacts the cover, the operator's finger Vibration is not transmitted. Therefore, the operator can operate the dental handpiece comfortably without being affected by the vibration of the cutting tip.
  • the cover body is detachably attached to the handpiece body, it is possible to easily carry out the work of replacing the cutting tip, which is performed as needed.
  • the 1st cover part which covers the base of a cutting tip in a cover body is not specified as a cylinder which covers the whole base of a cutting tip over all the circumferences.
  • the first cover portion may be formed with an opening so that a part of the entire circumference of the entire base of the cutting tip is exposed.
  • the opening portion may be formed from the second cover portion to the first cover portion.
  • cover body is formed such that the second cover portion covers at least a side portion of the cutting tip farthest from the handpiece main body.
  • the second cover portion covers at least the side portion farthest from the handpiece body in the cutting tip.
  • part is a position which opposes a handpiece main body on both sides of the chip
  • the cover body includes a finger placement unit on which the operator's finger can be placed on the second cover unit.
  • the second cover that covers the end of the cutting tip includes the finger placement unit on which the operator's finger can be placed, the operator holds the second cover more stably. be able to. As a result, the operator can easily hold down the second cover with a finger, and the cutting force of the cutting tip can be easily improved.
  • cover body is provided with a cutaway portion to which an end portion of the cutting tip can be inserted at an open end of the second cover portion.
  • the cutting tip abuts on the cover body when removing only the cover body from the handpiece body while the cutting tip is attached to the handpiece body It may be difficult to carry out the removal work.
  • the second cover portion covers the end portion of the cutting tip, the second cover portion may abut on the cutting tip when removing the cover body from the handpiece main body. So, in this composition, a cover body equips an open end of the 2nd cover part with a notch which an end of a chip for cuttings can enter.
  • Another characteristic configuration is that, in the cover body, the second cover portion is formed so as to be raised relative to the first cover portion on the side opposite to the tip end side of the cutting tip.
  • the second cover portion of the cover body is formed so as to protrude relative to the first cover portion on the side opposite to the tip end side of the cutting tip, so the second cover portion and the cutting tip It is easy to form a clearance between the This facilitates the accommodation of the end portion of the cutting tip in the second cover portion.
  • FIG. 1 It is a perspective view which shows the cover body of another form. It is a sectional side view which shows another form of dental handpiece. It is a sectional side view which shows another form of dental handpiece. It is principal part sectional drawing of the dental handpiece of another form. It is a perspective view which shows the cover body of another form. It is a perspective view which shows the modification of a handpiece main body. It is principal part sectional drawing of the handpiece main body shown in FIG. It is a perspective view which shows the modification of a handpiece main body. It is principal part sectional drawing of the handpiece main body shown in FIG.
  • the dental handpiece 100 includes a handpiece body 1, a cutting tip 2, and a cover 3 that covers the cutting tip 2.
  • the handpiece body 1 includes a grip for the operator to grip.
  • the handpiece main body 1 incorporates a vibration source 10 for generating air or ultrasonic waves for vibrating the cutting tip 2.
  • a conduit or an electric cable for supplying air to the vibration source 10, and further, a flexible hose etc. bundling and containing a water injection conduit (all not shown) as necessary Is connected.
  • the vibration transmission unit 11 is connected to the vibration generation source 10.
  • an external thread portion 12 for connection to the cutting tip 2 is provided.
  • the cutting tip 2 includes a tip base 21 (an example of a base) and a tip body 22 (an example of an end).
  • a tip base 21 is attached to the tip of the handpiece main body 1.
  • the tip base 21 includes a proximal end female screw portion 23 and a distal end fixing portion 24, and the female screw portion 23 is screwed and fixed to the male screw portion 12 at the tip of the handpiece body 1.
  • the chip body 22 is detachably attached to the fixing portion 24.
  • the chip base 21 can be separated from the handpiece main body 1 by loosening the female screw portion 23 when cleaning the chip base 21 itself, replacing it due to damage, or requiring any other maintenance.
  • the vibration source 10 when the vibration source 10 is activated with the cutting tip 2 attached to the handpiece body 1, the vibration generated by the vibration source 10 is transmitted to the tip body 22 through the tip base 21. Be done. Thereafter, by bringing the working surface of the tip body 22 into contact with the tooth surface to be cut, cutting of the tooth surface is performed by the contact of the working surface and the vibration action.
  • the cover body 3 is detachably attached to the handpiece body 1 and covers the cutting tip 2 in a state where the vibration of the vibration source 10 is not transmitted.
  • the end of the handpiece body 1 is provided with an engagement claw 1 a, and the inner surface of the first cover 31 of the cover 3 can be engaged with the engagement claw 1 a
  • An engagement recess 31a is provided.
  • the cover body 3 can be attached to and detached from the handpiece main body 1 by engaging and disengaging the engagement claw portion 1a with the engagement concave portion 31a.
  • the engagement / disengagement / disengagement of the engagement claw portion 1 a with the engagement concave portion 31 a is performed by operating the engagement claw portion 1 a with a finger or the like.
  • the structure which makes the cover body 3 detachable with respect to the handpiece main body 1 is not limited to the engagement claw part 1a and the engagement recessed part 31a, Another structure may be sufficient.
  • the cover body 3 is attached to the handpiece body 1 in a state of being separated from the vibration source 10, the vibration transmission unit 11, and the cutting tip 2.
  • the cover 3 has a first cover 31 and a second cover 32.
  • the first cover portion 31 covers the portion of the chip base 21 excluding the fixing portion 24 and the chip body 22, and the second cover portion 32 is continuously formed on the first cover portion 31 so that the fixing portion 24 of the chip base 21 is fixed.
  • the chip body 22 that is, the first cover 31 covers the base of the cutting tip 2 and the second cover 32 covers the end of the cutting tip 2.
  • the second cover portion 32 is formed with a front cover portion 37 so as to cover at least a side portion of the cutting tip 2 farthest from the handpiece main body 1.
  • the operator can operate the dental handpiece 100 in a state in which the finger is in contact with the second cover portion 32 of the cover body 3, so the cutting force of the cutting tip 2 can be easily increased.
  • the tip of the cutting tip can be stably held at the treatment site.
  • the cover body 3 covering the cutting tip 2 is attached to the handpiece main body 1 in a state in which the vibration of the vibration source 10 is not transmitted, the operator can see if the operator's finger contacts the cover body 3 The vibration of the vibration source 10 is not transmitted to the finger, and the cutting force does not decrease. Therefore, the operator can operate the dental handpiece 100 comfortably without being affected by the vibration of the cutting tip 2.
  • the second cover portion 32 has an upper surface portion 33 and a side surface portion 34 including the front side cover portion 37, and the side surface portion 34 is formed in a cylindrical shape.
  • an inclined portion 35 which is tapered toward the upper surface portion 33 is formed between the upper surface portion 33 and the side surface portion 34.
  • a first notch 34a in the longitudinal direction is formed in the front cover portion 37 of the side surface portion 34, an opening 36a is formed in the opening end 36, and a hand is formed in the lower portion 38 of the second cover portion 32.
  • a second notch 38a directed to the piece body 1 is formed (see FIG. 2). As shown in FIGS.
  • the first notch 34 a and the second notch 38 a are connected via an opening 36 a through which the chip body 22 is inserted.
  • the first notch 34a, the opening 36a, and the second notch 38a are formed by one elongated hole which is continuous with the same width and has a width which allows the maximum diameter portion of the chip main body 22 to enter. It is done.
  • the elongated holes are formed in such a shape that the tip body 22 which is the end of the cutting tip 2 can enter. .
  • the upper surface portion 33, the side surface portion 34, and the inclined portion 35 are formed so that the operator's finger can be placed thereon. That is, the upper surface part 33, the side surface part 34, and the inclined part 35 can be used as the finger placement part 40 (refer FIG. 5).
  • the operator can hold the second cover unit 32 more stably. As a result, the operator can easily hold down the second cover portion 32 with a finger, so that the cutting force of the cutting tip 2 can be easily improved and the tip of the cutting tip can be accurately positioned at the treatment site.
  • the second cover portion 32 is raised relative to the first cover portion 31 on the side opposite to the tip end side of the cutting tip 2 by the upper surface portion 33, the side surface portion 34 and the inclined portion 35. It is formed. Therefore, it is easy to form a clearance between the second cover portion 32 and the cutting tip 2. As a result, the second cover portion 32 facilitates the accommodation of the tip body 22 and the fixing portion 24 which are the end portions of the cutting tip 2, and the vibration of the cutting tip 2 is not transmitted to the second cover portion 32.
  • FIG. 6 and 7 show an example of a state in which the operator's finger is placed on the second cover portion 32.
  • FIG. 6 the tip end portion of the operator's finger is placed on the inclined portion 35 corresponding to the finger placement portion.
  • FIG. 7 the abdomen of the finger of the operator is placed on the side portion 34 corresponding to the finger placement portion.
  • FIG. 8 shows a state in which a hook shaped tip body 26 is directly attached to the handpiece body 1 as the cutting tip 2.
  • the tip body 26 has an internal thread 27 at its proximal end.
  • the cover body 3 has the same shape as that of the above-described embodiment (for the cutting tip 2 having the tip body 22).
  • the number of parts of the dental handpiece 100 can be reduced by using the cover body 3 of the same shape for cutting chips 2 (tip bodies 22 and 26) of different shapes.
  • the second cover unit 32 may be formed into a prismatic shape, and may be configured by the side surface unit 34 thereof. In this case, it becomes easy to hold and hold the finger placement unit 40 with two fingers.
  • the finger placement unit 40 may be configured by providing a recess 39 at a location where the upper surface 33 and the side surface 34 of the second cover 32 intersect. It is preferable that the recess 39 be formed in a curved surface-shaped depression that conforms to the shape of the finger surface so as to ensure a wide contact area with the finger. By placing the operator's finger in such a recess 39, the action site of the tip body 22 can be more stably held in position.
  • the second cover portion 32 is formed to bulge on the side opposite to the tip side of the cutting tip 2, as shown in FIG. 11.
  • the upper portion of the first cover portion 31 and the upper portion of the second cover portion 32 may be flush with each other.
  • the second cover portion 32 has the first cutaway portion 34a in the front cover portion 37 with the opening portion 36a at the opening end 36 and the second cutaway portion 38a in the lower portion 38
  • the example which has it was shown it may be the composition which provides only any one among the 1st notch 34a and the 2nd notch 38a. If the opening 36a of the second cover 32 does not come in contact with the end of the cutting chip 2, the second cover 32 is configured only with the opening 36a without the notches 34a and 38a. You may
  • the handpiece body 1 has a gentle angle at the middle in the longitudinal direction.
  • the cutting tip 2 and the cover 3 are attached obliquely upward in the axial direction of the handpiece body 1.
  • the first cover portion 31 of the cover body 3 covers the entire tip base 21 of the cutting tip 2 substantially over the entire circumference.
  • the shape is not particularly limited. As shown in FIG. 13, in the first cover portion 31, for example, a part of the lower portion 38 may be cut away to form an opening 38 b. In the present embodiment, the opening 38b is cut out to be larger than the width in the short direction of the first notch 34a, the opening 36a, and the second notch 38a. As a result, most of the lower side of the chip base 21 of the cutting chip 2 is exposed by the opening 38 b.
  • an opening 38 b is formed from the front side of the second cover 32 to the first cover 31.
  • the opening portion 38b may be formed in the shape of a long hole having the same width in the width direction as the opening 36a and the second notch 38a shown in FIGS. 4 and 7.
  • an elastic body 50 may be provided between the second cover portion 32 and the fixing portion 24 of the cutting tip 2.
  • the elastic body 50 is made of rubber, a spring or the like.
  • the cover body 3 may be constituted by two cover bodies 3a and 3b which can be divided into left and right sides in the longitudinal direction. By forming the cover body 3 so as to be divisible, the cover body 3 does not need a notch to which the end of the cutting tip 2 can enter.
  • FIGS. 16 to 19 show another embodiment of the handpiece main body 1.
  • the handpiece main body 1 shown in FIGS. 16 and 17 is formed in an inverted triangle in cross section, and has a protrusion 13 which can be held by the thumb and forefinger on the upper surface of the handpiece main body 1.
  • the handpiece main body 1 shown in FIG. 18 and FIG. 19 has a recess 14 on the upper surface of which the forefinger of the operator can be placed.
  • the present invention can be widely used in dental handpieces having cutting tips of various shapes.
  • Handpiece main body 2 Cutting tip 3: Cover 10: Vibration source 11: Vibration transmitting portion 21: Tip base 22, 26: Tip main body 31: First cover portion 32: Second cover portion 33: Upper surface portion (Finger placement unit) 34: Side part (finger placement part) 34a, 38a: Notched portion 35: Inclined portion (finger placement portion) 36: Opening end 37: Front cover portion 39: Recess (finger placement portion) 40: finger placement portion 50: elastic body 100: dental handpiece

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)
PCT/JP2018/034631 2017-10-26 2018-09-19 歯科用ハンドピース WO2019082560A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017207236A JP6708910B2 (ja) 2017-10-26 2017-10-26 歯科用ハンドピース
JP2017-207236 2017-10-26

Publications (1)

Publication Number Publication Date
WO2019082560A1 true WO2019082560A1 (ja) 2019-05-02

Family

ID=66247274

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/034631 WO2019082560A1 (ja) 2017-10-26 2018-09-19 歯科用ハンドピース

Country Status (2)

Country Link
JP (1) JP6708910B2 (enrdf_load_stackoverflow)
WO (1) WO2019082560A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114224525A (zh) * 2022-01-06 2022-03-25 天津大学 一种牙科弯手机外部超声复合振动附件式手柄

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000308650A (ja) * 1999-04-11 2000-11-07 Duerr Dental Gmbh & Co Kg 好適には高周波数の機械的振動を有していて組織を治療するための歯科用装置
JP2002113019A (ja) * 2000-08-10 2002-04-16 Kaltenbach & Voigt Gmbh & Co 特に空気式の振動駆動機構を有する医療用または歯科医療用の治療機器
WO2002087459A2 (de) * 2001-04-30 2002-11-07 Dürr Dental GmbH & Co. KG Handstück zum linearen antreiben eines vorzugsweise dentalen werkzeuges
US20040185412A1 (en) * 2003-03-19 2004-09-23 James Feine Lighted Ultrasonic Handpiece and Color Code Grip System
JP2004351104A (ja) * 2003-05-30 2004-12-16 Morita Mfg Co Ltd 歯科用スケーラー
JP2015029693A (ja) * 2013-08-02 2015-02-16 株式会社吉田製作所 カメラ内蔵歯科用インスツルメント用の無線送信用ユニット及びカメラ内蔵歯科用インスツルメント

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000308650A (ja) * 1999-04-11 2000-11-07 Duerr Dental Gmbh & Co Kg 好適には高周波数の機械的振動を有していて組織を治療するための歯科用装置
JP2002113019A (ja) * 2000-08-10 2002-04-16 Kaltenbach & Voigt Gmbh & Co 特に空気式の振動駆動機構を有する医療用または歯科医療用の治療機器
WO2002087459A2 (de) * 2001-04-30 2002-11-07 Dürr Dental GmbH & Co. KG Handstück zum linearen antreiben eines vorzugsweise dentalen werkzeuges
US20040185412A1 (en) * 2003-03-19 2004-09-23 James Feine Lighted Ultrasonic Handpiece and Color Code Grip System
JP2004351104A (ja) * 2003-05-30 2004-12-16 Morita Mfg Co Ltd 歯科用スケーラー
JP2015029693A (ja) * 2013-08-02 2015-02-16 株式会社吉田製作所 カメラ内蔵歯科用インスツルメント用の無線送信用ユニット及びカメラ内蔵歯科用インスツルメント

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114224525A (zh) * 2022-01-06 2022-03-25 天津大学 一种牙科弯手机外部超声复合振动附件式手柄
CN114224525B (zh) * 2022-01-06 2024-08-06 天津大学 一种牙科弯手机外部超声复合振动附件式手柄

Also Published As

Publication number Publication date
JP2019076593A (ja) 2019-05-23
JP6708910B2 (ja) 2020-06-10

Similar Documents

Publication Publication Date Title
CN104053415B (zh) 牙齿卫生器具
US10117725B2 (en) Interproximal dental tool
WO2019022255A1 (ja) リーマの電動式往復動発生具およびリーマ付きの電動式往復動発生具
CN112353510A (zh) 根管治疗设备
JP7369366B2 (ja) キャップおよびこのキャップを備えた根管治療用の往復動発生具
JP2001514923A (ja) 医療用または歯科用器具およびこのような器具用のツール
WO2019082560A1 (ja) 歯科用ハンドピース
JP2019076593A5 (enrdf_load_stackoverflow)
CN214049137U (zh) 根管治疗设备
JP2018057670A (ja) 歯周スケーラ
JP2005319254A (ja) 口腔清掃用マウスピース上下に同時に効果的な振動を与える装置
JP5857277B2 (ja) 内視鏡プローブ付き歯科用振動式ハンドピース装置
JP4079745B2 (ja) 舌苔除去用チップ及びこれを用いた舌苔除去用ハンドピース
JP3652294B2 (ja) 歯科用スケーラハンドピース
JP3137675U (ja) 振動理容美容器具
KR101838678B1 (ko) 초음파를 이용한 치주인대 박리기구
JP2021090718A (ja) ファイルの往復動発生具およびファイル付きの往復動発生具
JP2002065689A (ja) 超音波処置具
JP2006239368A (ja) 口腔及び歯の清掃装置
US20180303590A1 (en) Freehand Ring and Method of Use Thereof
WO2006117883A1 (ja) 歯科用チップ
KR20240004594A (ko) 치과용 폴리싱 컵
WO2020170999A1 (ja) 針状根管治療具と歯科治療器具
JP2954918B2 (ja) マイクロエンジンハンドピース
JP4168420B2 (ja) 交換容易なバイブレータを備えた空気動式歯科用振動ハンドピース

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18871685

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18871685

Country of ref document: EP

Kind code of ref document: A1