JP4942120B2 - Medical cutting tool guide - Google Patents

Medical cutting tool guide Download PDF

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JP4942120B2
JP4942120B2 JP2008293942A JP2008293942A JP4942120B2 JP 4942120 B2 JP4942120 B2 JP 4942120B2 JP 2008293942 A JP2008293942 A JP 2008293942A JP 2008293942 A JP2008293942 A JP 2008293942A JP 4942120 B2 JP4942120 B2 JP 4942120B2
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guide member
guide
cutting tool
cutting
holding member
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JP2010119465A (en
JP2010119465A5 (en
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▲修▼似 若吉
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WAKAYOSHI SEISAKUSHO CO., LTD.
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WAKAYOSHI SEISAKUSHO CO., LTD.
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    • 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
    • A61C1/082—Positioning or guiding, e.g. of drills
    • A61C1/084—Positioning or guiding, e.g. of drills of implanting tools

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  • 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)
  • Dental Prosthetics (AREA)
  • Surgical Instruments (AREA)

Description

本発明は、歯科、口腔外科、整形外科等の外科手術において、骨にインプラント用の挿着孔を穿孔する際に用いられる医療用切削具の案内具に関する。   The present invention relates to a guide for a medical cutting tool used in drilling an insertion hole for an implant in a bone in a surgical operation such as dentistry, oral surgery, and orthopedic surgery.

歯科、口腔外科、整形外科等の外科手術では、人工歯根、人工関節、人工骨、骨折治療具等のインプラントを正確に挿着する必要があり、そのため人体の生体骨に予め穿孔して挿着孔を形成し、挿着孔にインプラントを挿入して位置決め固定するようにしている。   In surgical operations such as dentistry, oral surgery, and orthopedic surgery, it is necessary to accurately insert implants such as artificial roots, artificial joints, artificial bones, and fracture treatment tools. A hole is formed, and the implant is inserted into the insertion hole to be positioned and fixed.

こうした穿孔に用いる医療用切削具としては、例えば、特許文献１には、管状鋸及びドリルを同軸に設け、管状鋸により骨状組織を穿孔しその際生じる骨片をドリルで内部に収集する切削具が挙げられる。   As a medical cutting tool used for such drilling, for example, in Patent Document 1, a tubular saw and a drill are provided coaxially, and a bone-shaped tissue is drilled by the tubular saw and the resulting bone fragments are collected inside by a drill. Tools.

切削具により穿孔を行う場合その切削方向を予め設定しておく必要があり、そのためのガイド部材が使用されている。例えば、特許文献２では、穿孔工具のドリルの径とほぼ等しい円筒形のガイド穴を有するガイド部材及びガイド部材を穿孔位置に支持する支持部材を備えた歯科用ドリルガイド装置が記載されている。また、特許文献３では、人体部位の欠損部に被せて装着する冠状部材を備え、冠状部材には、目標穿孔位置まで作業装置を案内するために上下方向に貫通するガイド孔を設け、ガイド孔から側方に向かって開放された上下方向のスリットを有するガイド部材が記載されている。
特開平６−３０４１８７号公報 実開平１−５９１１３号公報 特開２００６−３４１０６７号公報 When drilling with a cutting tool, it is necessary to set the cutting direction in advance, and a guide member for that purpose is used. For example, Patent Document 2 describes a dental drill guide device including a guide member having a cylindrical guide hole substantially equal to the diameter of a drill of a drilling tool and a support member that supports the guide member at a drilling position. Further, in Patent Document 3, a coronal member that is attached to a missing part of a human body part is provided, and the coronal member is provided with a guide hole penetrating in the vertical direction to guide the working device to a target drilling position. The guide member which has the slit of the up-down direction opened toward the side from is described.
JP-A-6-304187 Japanese Utility Model Publication No. 1-59113 JP 2006-341067 A

特許文献２及び３に記載されているようなガイド部材では、切削具を案内するために上下方向にスリット状に形成された溝を用いているが、こうした溝をガイド面とする場合切削具を横方向から挿入して容易に位置決めできる反面、穿孔動作中に切削具が溝内を揺動しやすくなって安定した穿孔動作が行なえないといったデメリットがある。   In the guide members as described in Patent Documents 2 and 3, a groove formed in a slit shape in the vertical direction is used to guide the cutting tool. When such a groove is used as a guide surface, the cutting tool is used. Although it can be easily positioned by inserting from the side, there is a demerit that the cutting tool easily swings in the groove during the drilling operation and a stable drilling operation cannot be performed.

そこで、本発明は、切削具を容易にセットすることができるとともに安定した穿孔動作を行うことができる医療用切削具の案内具を提供することを目的とするものである。   Accordingly, an object of the present invention is to provide a medical cutting tool guide that allows a cutting tool to be easily set and can perform a stable drilling operation.

本発明に係る医療用切削具の案内具は、先端部側に切削部を設けるとともに中心軸を中心に回転させて切削動作を行なう医療用切削具の案内具であって、前記医療用切削具の外周面の外径よりもわずかに大きい内径を有するガイド面が形成されるとともに前記医療用切削具の外周面に切削方向に移動可能で回動自在に装着されるガイド部材と、施術部位に位置決めされて取り付けられるとともに前記ガイド部材を切削方向に移動しないように保持する保持部材とを備え、前記保持部材は、前記ガイド部材の外周面の外径よりも狭い幅の開口部が切削方向に沿って形成されており、前記医療用切削具に装着された前記ガイド部材を切削方向と直交する方向から前記開口部に嵌入させ前記保持部材及び／又は前記ガイド部材が一時的に変形して前記ガイド部材が前記保持部材内に装着されることで前記医療用切削具が切削方向に沿うように保持されることを特徴とする。さらに、前記ガイド部材は、円筒状部材であることを特徴とする。さらに、前記保持部材は、薄板状の一対の把持部を備えていることを特徴とする。さらに、前記ガイド部材には、前記保持部材に当接して切削方向の移動を規制する規制部が形成されていることを特徴とする。 A guide for a medical cutting tool according to the present invention is a guide for a medical cutting tool that is provided with a cutting portion on a distal end side and that rotates around a central axis to perform a cutting operation. A guide surface having an inner diameter slightly larger than the outer diameter of the outer peripheral surface of the medical cutting tool, and a guide member that is movable and rotatable in the cutting direction on the outer peripheral surface of the medical cutting tool, and a treatment site A holding member that is positioned and attached and holds the guide member so as not to move in the cutting direction, and the holding member has an opening having a width smaller than the outer diameter of the outer peripheral surface of the guide member in the cutting direction. The guide member mounted on the medical cutting tool is inserted into the opening from a direction orthogonal to the cutting direction, and the holding member and / or the guide member is temporarily deformed before Wherein in the guide member is mounted on the holding within member medical cutting tool is characterized in that it is held along the cutting direction. Further, the guide member is a cylindrical member. Further, the holding member includes a pair of thin plate-like gripping portions. Further, the guide member is formed with a restricting portion that abuts the holding member and restricts movement in a cutting direction.

上記のような構成を有することで、医療用切削具にガイド部材を装着してガイド部材を保持部材内に取り付けるようにしたので、医療用切削具がガイド部材内で安定して回動することができるとともに保持部材により切削方向に沿うように保持されて安定して穿孔動作することが可能となる。そして、ガイド部材が切削方向に移動しないように保持部材に保持されるので、医療用切削具が穿孔動作に伴う切削方向の移動をスムーズに行うことができる。   By having the configuration as described above, the guide member is attached to the medical cutting tool and the guide member is attached to the holding member, so that the medical cutting tool can be stably rotated in the guide member. In addition, it is possible to stably hold the hole in the cutting direction by the holding member and perform a stable drilling operation. Since the guide member is held by the holding member so as not to move in the cutting direction, the medical cutting tool can smoothly move in the cutting direction accompanying the drilling operation.

また、ガイド部材の外周面の外径よりも狭い幅の開口部を保持部材に形成し、開口部にガイド部材を横方向から嵌入させて保持部材内にガイド部材を装着するようにしているので、ガイド部材の保持部材への着脱動作を確実に行うことができる。   In addition, an opening having a width smaller than the outer diameter of the outer peripheral surface of the guide member is formed in the holding member, and the guide member is fitted into the opening from the lateral direction so that the guide member is mounted in the holding member. The attaching / detaching operation of the guide member to the holding member can be performed reliably.

以下、本発明に係る実施形態について詳しく説明する。なお、以下に説明する実施形態は、本発明を実施するにあたって好ましい具体例であるから、技術的に種々の限定がなされているが、本発明は、以下の説明において特に本発明を限定する旨明記されていない限り、これらの形態に限定されるものではない。   Hereinafter, embodiments according to the present invention will be described in detail. The embodiments described below are preferable specific examples for carrying out the present invention, and thus various technical limitations are made. However, the present invention is particularly limited in the following description. Unless otherwise specified, the present invention is not limited to these forms.

図１は、本発明に係る実施形態に関する外観斜視図（図１（ａ））及びＡ−Ａ断面図（図１（ｂ））であり、図２は、本実施形態に関する分解斜視図である。医療用切削具の案内具は、ガイド部材１及び保持部材２からなり、この例では、歯科治療に使用するために、ガイド部材１は、インプラントに装着するための穿孔作業を行う切削具１００に装着されており、保持部材２は、患者の歯列に装着される樹脂製の歯列装着部材２００に取り付けられている。   FIG. 1 is an external perspective view (FIG. 1 (a)) and an AA sectional view (FIG. 1 (b)) relating to the embodiment according to the present invention, and FIG. 2 is an exploded perspective view relating to the present embodiment. . A guide for a medical cutting tool includes a guide member 1 and a holding member 2. In this example, for use in dental treatment, the guide member 1 is attached to a cutting tool 100 that performs a drilling operation for mounting on an implant. The holding member 2 is attached to a resin-made dental row mounting member 200 to be mounted on a patient's dental row.

ガイド部材１は、円筒形の本体部１０の両端部フランジ部１１が形成されている。ガイド部材１に用いる材料としては、高強度、耐摩耗性、摺動特性に優れた樹脂材料が好ましく、また、切削具がガイド部材１内で回転動作中にガイド部材１が削り取られて外部に飛散することも考慮して人体に無害なものを選択することが望ましい。例えば、樹脂材料としてはポリアセタールが好ましい。   The guide member 1 is formed with both end flange portions 11 of a cylindrical main body portion 10. The material used for the guide member 1 is preferably a resin material having high strength, wear resistance, and excellent sliding characteristics, and the guide member 1 is scraped off while the cutting tool is rotating in the guide member 1 to the outside. It is desirable to select one that is harmless to the human body in consideration of scattering. For example, polyacetal is preferable as the resin material.

ガイド部材１の本体部１０の内径は、切削具１００の外径よりもわずかに大きくなるように設定されており、そのため切削具１００に装着した状態ではガイド部材１が切削具１００の周囲を回動自在に装着される。図３は、切削具１００にガイド部材１を装着する場合の説明図である。切削具１００は、下端部に鋸状の切削部１０１が形成されており、上部にはハンドピースに固定するための係止部１０２が形成されている。そして、ガイド部材１を上方から切削具１００に挿通して装着する。この場合、切削具１００の下部を切削部１０１に向かってわずかに末広がり状に外径が大きくなるように形成しておけば、ガイド部材１が切削具１００の下方からすり抜けて外れてしまうのを防止することができる。 また、ガイド部材１の上方への移動を規制するために、ガイド部材１を装着した後に樹脂製のＯリングを切削具１００の所定位置に取り付けてもよい。   The inner diameter of the main body 10 of the guide member 1 is set to be slightly larger than the outer diameter of the cutting tool 100, so that the guide member 1 rotates around the cutting tool 100 when mounted on the cutting tool 100. Mounted freely. FIG. 3 is an explanatory diagram when the guide member 1 is mounted on the cutting tool 100. The cutting tool 100 has a saw-like cutting portion 101 formed at the lower end portion, and an engaging portion 102 for fixing to the handpiece at the upper portion. Then, the guide member 1 is inserted and attached to the cutting tool 100 from above. In this case, if the lower part of the cutting tool 100 is formed so that the outer diameter is slightly widened toward the cutting part 101, the guide member 1 slips out from below the cutting tool 100 and comes off. Can be prevented. Further, in order to restrict the upward movement of the guide member 1, a resin O-ring may be attached to a predetermined position of the cutting tool 100 after the guide member 1 is mounted.

ガイド部材１の本体部１０の厚さは薄く成形されており、保持部材２の開口部２２に嵌入する際に外径が狭まるように変形可能となっている。また、本体部１０の外径は、保持部材２の一対の把持部２０の内面の内径とほぼ同じかわずかに小さくなるように設定されており、本体部１０が把持部２０内でがたつくことなく保持されるようになっている。   The main body portion 10 of the guide member 1 is formed to be thin and can be deformed so that the outer diameter is narrowed when the guide member 1 is fitted into the opening 22 of the holding member 2. Further, the outer diameter of the main body 10 is set to be substantially the same as or slightly smaller than the inner diameter of the inner surfaces of the pair of gripping portions 20 of the holding member 2, so that the main body 10 does not rattle within the gripping portion 20. It is supposed to be retained.

フランジ部１１は、本体部１０の両端部に外方に突出するように形成されており、その外径は把持部２０の内径よりも大きく外径よりも小さくは同じ程度に設定されている。   The flange portion 11 is formed so as to protrude outward at both end portions of the main body portion 10, and the outer diameter thereof is set larger than the inner diameter of the grip portion 20 and smaller than the outer diameter.

保持部材２０は、内面が平面視円弧状に形成された一対の把持部２０、把持部２０の端部から末広がり状に延設された板状の導入部２１、把持部２０の端部の間に形成された開口部２２、及び、把持部２０の背面に突設された支持部２３を備えている。   The holding member 20 includes a pair of gripping portions 20 whose inner surfaces are formed in an arc shape in plan view, a plate-like introduction portion 21 extending from the end portion of the gripping portion 20 in a divergent shape, and an end portion of the gripping portion 20. And an opening portion 22 formed on the back surface of the grip portion 20 and a support portion 23 projecting from the back surface of the grip portion 20.

保持部材２０は、金属材料からなり、各部分がほぼ同じ厚さの板状に形成されている。保持部材２０に用いられる金属材料としては、人体に無害なものを選択することが好ましく、例えば、チタンが好ましい。   The holding member 20 is made of a metal material, and each part is formed in a plate shape having substantially the same thickness. As the metal material used for the holding member 20, it is preferable to select a material that is harmless to the human body, and for example, titanium is preferable.

図４は、保持部材２の平面図である。把持部２０は、円筒形の一部を切り欠いて形成されており、この例では、円筒形の中心軸Ｏを通る平面Ｔ及び中心軸Ｏから外れた位置で平面Ｔと直交する平面Ｓを設定した場合に、平面Ｓに沿って切り欠いて平面Ｔの両側に一対の把持部２０が形成される。把持部２０の端部の間には間隔ｄの幅で開口部２２が形成されている。ガイド部材１の本体部１０の外径Ｄは把持部２０の内面の内径とほぼ同じ形状に設定されているため、外径Ｄに対して開口部２２の間隔ｄは狭くなるように設定されるようになる。   FIG. 4 is a plan view of the holding member 2. The grip portion 20 is formed by cutting out a part of a cylindrical shape. In this example, a plane T passing through the cylindrical central axis O and a plane S orthogonal to the plane T at a position deviating from the central axis O are used. When set, a pair of gripping portions 20 are formed on both sides of the plane T by cutting out along the plane S. An opening 22 is formed between the ends of the grip 20 with a width d. Since the outer diameter D of the main body portion 10 of the guide member 1 is set to be substantially the same shape as the inner diameter of the inner surface of the grip portion 20, the distance d between the openings 22 is set to be narrower than the outer diameter D. It becomes like this.

一対の導入部２１は、平板状に形成されて把持部２０の端部から外方に向かって延設されており、導入部２１の間の間隔は外方にいくに従い拡大するように設定されている。   The pair of introduction portions 21 are formed in a flat plate shape and extend outward from the end portion of the gripping portion 20, and the interval between the introduction portions 21 is set so as to increase toward the outside. ing.

把持部２０及び導入部２１の中心軸方向の長さは、ガイド部材１の本体部１０の長さ（フランジ部１１の間の長さ）とほぼ同じかわずかに小さくなるように設定されている。   The lengths of the grip portion 20 and the introduction portion 21 in the central axis direction are set to be substantially the same as or slightly smaller than the length of the main body portion 10 of the guide member 1 (the length between the flange portions 11). .

ガイド部材１を装着した切削具２０を保持部材２に嵌入する場合、ガイド部材１の本体部１０を開口部２２に対して横方向（中心軸Ｏに対して直交する方向）から挿入する。その際に、導入部２１により開口部２２に誘導されながら本体部１０を移動するようにすれば、正確に開口部２２に本体部１０を対向させることができる。特に、本体部１０の両端部に突出するフランジ部１１を導入部２１の両側端に当接してガイド部材１を移動させるようにすれば、確実に本体部１０を開口部２２に対して位置合せすることが可能となる。   When the cutting tool 20 to which the guide member 1 is attached is fitted into the holding member 2, the main body 10 of the guide member 1 is inserted from the lateral direction (direction orthogonal to the central axis O) with respect to the opening 22. At that time, if the main body portion 10 is moved while being guided to the opening portion 22 by the introduction portion 21, the main body portion 10 can be accurately opposed to the opening portion 22. In particular, if the guide member 1 is moved by abutting the flange portions 11 projecting at both ends of the main body portion 10 against both side ends of the introduction portion 21, the main body portion 10 is reliably aligned with the opening portion 22. It becomes possible to do.

開口部２２に位置合せされた本体部１０を把持部２０内に押し込むと、本体部１０が変形して把持部２０内に嵌入されるようになる。その際に、開口部２２を通り抜けるように本体部１０の外径の幅が狭くなり、また把持部２０がわずかに外方に撓んで開口部２２の幅が拡がるようになる。ガイド部材１の本体部１０の内周面は切削具１００の外周面との間にわずかに隙間が形成されているので、その分本体部１０が内側に凹むように変形することができ、外径の幅を狭くすることが可能となる。   When the main body portion 10 aligned with the opening 22 is pushed into the grip portion 20, the main body portion 10 is deformed and inserted into the grip portion 20. At that time, the width of the outer diameter of the main body portion 10 is narrowed so as to pass through the opening portion 22, and the holding portion 20 is slightly bent outward to increase the width of the opening portion 22. Since a slight gap is formed between the inner peripheral surface of the main body 10 of the guide member 1 and the outer peripheral surface of the cutting tool 100, the main body 10 can be deformed so as to be recessed inward, It becomes possible to narrow the width of the diameter.

支持部２３は、平面Ｔに沿って把持部２０の背面側に突出した連結部２３ａに直交するように上下に並列配置された一対の矩形状の板状体を備えている。図５は、歯列装着部材２００に保持部材２を埋め込むように取り付けた状態を示す斜視図である。   The support portion 23 includes a pair of rectangular plate-like bodies that are arranged in parallel vertically so as to be orthogonal to the connecting portion 23 a that protrudes along the plane T toward the back side of the grip portion 20. FIG. 5 is a perspective view showing a state in which the holding member 2 is attached to the dentition mounting member 200 so as to be embedded.

歯列装着部材２００は、公知の樹脂材料を用いて形成される。樹脂材料としては、例えば、塩化ビニル樹脂、酢酸ビニル樹脂、ポリエステル樹脂、ＡＢＳ樹脂、アクリル樹脂、フッ素樹脂、ポリアミド樹脂、アセタール樹脂、ポリカーボネイト等が用いられる。インプラントの施術を行う際の利便性を考慮して、樹脂材料は透明又は半透明のものが好ましい。   The dentition mounting member 200 is formed using a known resin material. Examples of the resin material include vinyl chloride resin, vinyl acetate resin, polyester resin, ABS resin, acrylic resin, fluororesin, polyamide resin, acetal resin, and polycarbonate. In view of convenience when performing an implant operation, the resin material is preferably transparent or translucent.

図６から図９は、歯列装着部材２００を製造する工程に関する説明図である。Ｕ字状の基台２０１の上部に歯列２０２が形成されている。そして、インプラントを埋め込む部位には、埋め込み孔２０３が予め穿設されている。埋め込み孔２０３は、患者の施術部位を撮影したＸ線画像等に基づいて決められた埋め込み方向に沿って穿設される。   6-9 is explanatory drawing regarding the process of manufacturing the dentition mounting member 200. FIG. A tooth row 202 is formed on the upper portion of the U-shaped base 201. And the embedding hole 203 is previously drilled in the site | part which embeds an implant. The embedding hole 203 is formed along an embedding direction determined based on an X-ray image obtained by imaging a treatment site of a patient.

図７では、患者の歯型に穿設された埋め込み孔２０３にガイド部材１の本体部１０と同一径の金属棒２０４を挿着する。金属棒２０４には、予め保持部材２が嵌合して取り付けられている。保持部材２の取付位置は、ガイド部材１が装着された切削具１００が保持部材２に装着された場合に切削部１０１が歯肉に接触しないように所定の高さに設定する。   In FIG. 7, a metal rod 204 having the same diameter as that of the main body 10 of the guide member 1 is inserted into the embedded hole 203 formed in the patient's tooth mold. The holding member 2 is fitted and attached to the metal rod 204 in advance. The mounting position of the holding member 2 is set to a predetermined height so that the cutting unit 101 does not contact the gingiva when the cutting tool 100 to which the guide member 1 is mounted is mounted on the holding member 2.

図８では、金属棒２０４が挿着された状態で歯列全体を溶融した樹脂材料で被覆するように密着させる。その際に、金属棒２０４に取り付けた保持部材２の係合部２３を樹脂材料で埋めるように密着させ、把持部２０及び導入部２１の内部には樹脂材料が入り込まないように成形する。こうして樹脂材料を固化させて歯列装着部材２００を成形する。   In FIG. 8, the entire tooth row is closely attached with a molten resin material in a state where the metal rod 204 is inserted. At that time, the engaging portion 23 of the holding member 2 attached to the metal rod 204 is brought into close contact with the resin material, and is molded so that the resin material does not enter the grip portion 20 and the introduction portion 21. In this way, the resin material is solidified to mold the dentition mounting member 200.

図９では、固化した歯列装着部材２００を歯型２０２から取り外し、保持部材２から金属棒２０４を引き抜くことで、保持部材２を一体化して固定した歯列装着部材２００を得ることができる。そして、保持部材２は金属棒２０４に嵌合したままの状態で固定されるため、保持部材２の把持部２０の内面はインプラントの埋め込み方向である切削方向にガイドするように設定される。   In FIG. 9, by removing the solidified dentition mounting member 200 from the tooth mold 202 and pulling out the metal rod 204 from the holding member 2, the dentition mounting member 200 in which the holding member 2 is integrated and fixed can be obtained. Since the holding member 2 is fixed while being fitted to the metal rod 204, the inner surface of the holding portion 20 of the holding member 2 is set to guide in the cutting direction which is the implant embedding direction.

以上のように製造することで、予め成形された保持部材２をインプラントの埋め込み方向である切削具の切削方向に正確に位置決めすることができる。また歯列装着部材２００の下面は患者の歯型に合致した形状に成形されるので、施術の際に患者の歯列に密着して歯列装着部材２００を装着することができ、切削具の回転動作中にぶれることがなく安定した状態で穿孔作業を行うことが可能となる。   By manufacturing as described above, the preformed holding member 2 can be accurately positioned in the cutting direction of the cutting tool, which is the implanting direction of the implant. In addition, since the lower surface of the dentition mounting member 200 is formed into a shape that matches the patient's dental mold, the dentition mounting member 200 can be mounted in close contact with the patient's dentition during the treatment. The drilling operation can be performed in a stable state without shaking during the rotation operation.

以上の製造工程では、溶融した樹脂材料を保持部材とともに固化して固定するようにしているが、溶融した樹脂材料を歯型に合せて一旦固化させて歯列装着部材を形成した後保持部材が固定される部分を削除し、削除した部分に保持部材を嵌合した金属棒を位置決めして歯列装着部材との間を溶融した樹脂材料により接着するようにしてもよい。板状の樹脂材料を歯型に押し付けることで型取りして歯列装着部材を成形する場合にも保持部材を固定する部分を削除して保持部材を接着固定すればよい。   In the above manufacturing process, the molten resin material is solidified and fixed together with the holding member, but after the molten resin material is solidified according to the tooth mold to form the dentition mounting member, the holding member is The portion to be fixed may be deleted, and the metal rod fitted with the holding member may be positioned in the deleted portion and bonded to the dentition mounting member with a molten resin material. Even when a dental resin is molded by pressing a plate-shaped resin material against a tooth mold, a portion for fixing the holding member may be deleted and the holding member may be bonded and fixed.

図１０から図１２は、ガイド部材１を装着した切削具１００を保持部材２に取り付ける場合の過程を示す説明図である。歯列装着部材２００は、図１０に示すように、患者の歯列に装着して保持部材２をインプラントの施術部位に正確に位置決めする。保持部材２を施術部位に位置決めした後、図１２に示すように、切削具１００を取り付けたハンドピースＨを移動させて、切削具１００に装着されたガイド部材１を保持部材２の開口部２２の横方向から導入部２１に沿って導入する。その際に、ガイド部材１のフランジ部１１が導入部２１の上端に沿うようにして導入させれば、確実にガイド部材１を開口部２２の対向位置に位置合せすることができる。そして、ガイド部材１の本体部１０を開口部２２に押し込むようにすると、本体部１０及び開口部２２が変形して本体部１０が把持部２０内に嵌入される。一旦本体部１０が把持部２０内に収容されると、変形した本体部１０及び開口部２２が元の状態に戻るため本体部１０の外径が開口部２２の幅よりも大きくなって簡単に外れることはなく、安定した状態で保持される。   FIGS. 10 to 12 are explanatory views showing a process in the case of attaching the cutting tool 100 with the guide member 1 attached to the holding member 2. As shown in FIG. 10, the dentition mounting member 200 is mounted on the patient's dentition and accurately positions the holding member 2 at the implant site. After the holding member 2 is positioned at the treatment site, as shown in FIG. 12, the handpiece H to which the cutting tool 100 is attached is moved, and the guide member 1 mounted on the cutting tool 100 is moved to the opening 22 of the holding member 2. It introduces along the introduction part 21 from the horizontal direction. At this time, if the flange portion 11 of the guide member 1 is introduced so as to be along the upper end of the introduction portion 21, the guide member 1 can be reliably aligned with the position facing the opening portion 22. Then, when the main body 10 of the guide member 1 is pushed into the opening 22, the main body 10 and the opening 22 are deformed and the main body 10 is fitted into the grip 20. Once the main body 10 is accommodated in the gripper 20, the deformed main body 10 and the opening 22 return to the original state, so that the outer diameter of the main body 10 is larger than the width of the opening 22 and is easily It does not come off and is held in a stable state.

このように、ガイド部材１を開口部２２に対向させて着脱するので、開口部２２に本体部を平行に位置合せしないと着脱することができず、切削具１００の回転動作中に不用意に外れることが防止される。   As described above, the guide member 1 is attached to and detached from the opening 22 so that it cannot be attached or detached unless the main body is aligned with the opening 22 in parallel. It is prevented from coming off.

また、ガイド部材１のフランジ部１１が把持部２０の上端及び下端に当接した状態（図１（ｂ）参照）になるため、ガイド部材１が切削方向である上下方向に移動することが規制される。   Further, since the flange portion 11 of the guide member 1 comes into contact with the upper end and the lower end of the grip portion 20 (see FIG. 1B), the guide member 1 is restricted from moving up and down, which is the cutting direction. Is done.

切削具１００は、保持部材２内に保持されると切削方向にガイドされるようになる。そして、図１２に示すように、切削具１００をガイド部材１内で回転駆動させて下方に移動させることで切削部１０１が歯肉Ｍに食い込んでいき、円形状の孔を穿孔するように動作するようになる。この場合、ガイド部材１は切削方向に移動することがないので、切削具１００のみをスムーズに移動させて穿孔動作を行なうことができる。穿孔動作による深さは、外周面に表示されたスケールをチェックすることで所定の深さまで正確に穿孔することができる。   When the cutting tool 100 is held in the holding member 2, it is guided in the cutting direction. Then, as shown in FIG. 12, when the cutting tool 100 is rotationally driven in the guide member 1 and moved downward, the cutting unit 101 bites into the gingiva M and operates to drill a circular hole. It becomes like this. In this case, since the guide member 1 does not move in the cutting direction, only the cutting tool 100 can be moved smoothly to perform the drilling operation. The depth of the drilling operation can be accurately drilled to a predetermined depth by checking the scale displayed on the outer peripheral surface.

以上説明した例では、ガイド部材１のフランジ部１１を保持部材２の把持部２０に当接させて切削方向の移動を規制しているが、図１３（ａ）に示すように、保持部材２’の把持部の上下の端部に内方に突設したフランジ部２４を形成して、フランジ部２４の間にガイド部材１’を収容するようにしてもよい。また、図１３（ｂ）に示すように、保持部材２”の把持部の内面に凸条部２５を形成し、ガイド部材１の外周面に凹条部１２を形成しておき、ガイド部材１”が保持部材２”内に収容された際に凸条部２５及び凹条部１２が嵌合して切削方向の移動を規制するようにしてもよい。   In the example described above, the flange portion 11 of the guide member 1 is brought into contact with the grip portion 20 of the holding member 2 to restrict the movement in the cutting direction. However, as shown in FIG. A flange portion 24 projecting inwardly may be formed at the upper and lower ends of the gripping portion of 'and the guide member 1' may be accommodated between the flange portions 24. Further, as shown in FIG. 13 (b), the ridges 25 are formed on the inner surface of the holding part of the holding member 2 ″, and the ridges 12 are formed on the outer peripheral surface of the guide member 1. When "" is accommodated in the holding member 2 ", the ridges 25 and the ridges 12 may be fitted to restrict movement in the cutting direction.

また、ガイド部材１は、切削具１００に装着された場合に切削具１００の外周面に対して接触する面積が小さい方が切削具１００の回動動作の摩擦抵抗が少なくなって回動動作をスムーズに行うことができる。そのため、例えば、図１４に示すガイド部材１の断面図に示すように、フランジ部１１の内周面の内径を本体部１０の内径よりも小さくしてフランジ部１１の内周面で切削具１００の外周面に接触するようにすれば、ガイド部材１をがたつくことなく切削具１００に装着できるとともに接触面積を小さくすることが可能となる。   Further, when the guide member 1 is mounted on the cutting tool 100, the smaller the area in contact with the outer peripheral surface of the cutting tool 100, the smaller the frictional resistance of the rotating operation of the cutting tool 100 is, and the rotating operation is reduced. It can be done smoothly. Therefore, for example, as shown in the cross-sectional view of the guide member 1 shown in FIG. 14, the cutting tool 100 is formed on the inner peripheral surface of the flange portion 11 by making the inner diameter of the inner peripheral surface of the flange portion 11 smaller than the inner diameter of the main body portion 10. By making contact with the outer peripheral surface of the guide member 1, the guide member 1 can be mounted on the cutting tool 100 without rattling, and the contact area can be reduced.

また、外径の異なった複数の切削具を使用する場合には、切削具の最大径に合せて保持部材を作成しておき、ガイド部材１の内径を切削具の外径に合せて複数種類作成しておけば、１種類の保持部材で外径の異なる切削具を保持することができる。そのため、小さい径の切削具で穿孔動作を行った後大きい径の切削具で再度穿孔動作を行なう場合にも簡単に対応することが可能となる。   When using a plurality of cutting tools having different outer diameters, a holding member is prepared according to the maximum diameter of the cutting tool, and a plurality of types of guide members 1 are adjusted according to the outer diameter of the cutting tool. If prepared, cutting tools having different outer diameters can be held by one type of holding member. Therefore, it is possible to easily cope with the case where the drilling operation is performed again with a cutting tool having a large diameter after the drilling operation is performed with a cutting tool having a small diameter.

本発明に係る医療用切削具のガイド部材は、歯科、口腔外科、整形外科等の外科手術において、骨にインプラント用の埋め込み孔を穿孔する際に好適に用いることができる。   The guide member of the medical cutting tool according to the present invention can be suitably used for drilling an implantation hole for an implant in a bone in a surgical operation such as dentistry, oral surgery, and orthopedic surgery.

本発明に係る実施形態に関する外観斜視図である。It is an external appearance perspective view regarding embodiment which concerns on this invention. 図１の分解斜視図である。FIG. 2 is an exploded perspective view of FIG. 1. 切削具にガイド部材を装着する場合の説明図である。It is explanatory drawing in the case of mounting | wearing a cutting member with a guide member. 保持部材の平面図である。It is a top view of a holding member. 歯列装着部材に保持部材に取り付けた状態を示す斜視図である。It is a perspective view which shows the state attached to the holding member to the dentition mounting member. 歯列装着部材の製造工程に関する説明図である。It is explanatory drawing regarding the manufacturing process of a dentition mounting member. 歯列装着部材の製造工程に関する説明図である。It is explanatory drawing regarding the manufacturing process of a dentition mounting member. 歯列装着部材の製造工程に関する説明図である。It is explanatory drawing regarding the manufacturing process of a dentition mounting member. 歯列装着部材の製造工程に関する説明図である。It is explanatory drawing regarding the manufacturing process of a dentition mounting member. 保持部材にガイド部材を挿着する過程に関する説明図である。It is explanatory drawing regarding the process of inserting and attaching a guide member to a holding member. 保持部材にガイド部材を挿着する過程に関する説明図である。It is explanatory drawing regarding the process of inserting and attaching a guide member to a holding member. 保持部材にガイド部材を挿着する過程に関する説明図である。It is explanatory drawing regarding the process of inserting and attaching a guide member to a holding member. 案内具の変形例に関する斜視図である。It is a perspective view regarding the modification of a guide tool. ガイド部材の変形例に関する斜視図である。It is a perspective view regarding the modification of a guide member.

符号の説明Explanation of symbols

１ ガイド部材
10 本体部
11 フランジ部
12 凹条部
２ 保持部材
20 把持部
21 導入部
22 開口部
23 支持部
24 フランジ部
25 凸条部
100 切削具
200 歯列装着部材 1 Guide member
10 Main unit
11 Flange
12 Concave section 2 Holding member
20 Grip part
21 Introduction
22 opening
23 Support section
24 Flange
25 Projection
100 cutting tools
200 Dental seating member

Claims (4)

先端部側に切削部を設けるとともに中心軸を中心に回転させて切削動作を行なう医療用切削具の案内具であって、前記医療用切削具の外周面の外径よりもわずかに大きい内径を有するガイド面が形成されるとともに前記医療用切削具の外周面に切削方向に移動可能で回動自在に装着されるガイド部材と、施術部位に位置決めされて取り付けられるとともに前記ガイド部材を切削方向に移動しないように保持する保持部材とを備え、前記保持部材は、前記ガイド部材の外周面の外径よりも狭い幅の開口部が切削方向に沿って形成されており、前記医療用切削具に装着された前記ガイド部材を切削方向と直交する方向から前記開口部に嵌入させ前記保持部材及び／又は前記ガイド部材が一時的に変形して前記ガイド部材が前記保持部材内に装着されることで前記医療用切削具が切削方向に沿うように保持されることを特徴とする医療用切削具の案内具。 A guide for a medical cutting tool that is provided with a cutting portion on the tip side and performs a cutting operation by rotating around a central axis, and has an inner diameter slightly larger than the outer diameter of the outer peripheral surface of the medical cutting tool. a guide member mounted movably possible rotation in the cutting direction on the outer peripheral surface of the medical cutting tool with the guide surface is formed to have, in the cutting direction of the guide member with attached is positioned practitioner site An opening having a width narrower than the outer diameter of the outer peripheral surface of the guide member is formed along the cutting direction. The mounted guide member is fitted into the opening from a direction orthogonal to the cutting direction, and the holding member and / or the guide member is temporarily deformed, and the guide member is mounted in the holding member. Guide member of the medical cutting tool, wherein the at Rukoto medical cutting tool is held along the cutting direction. 前記ガイド部材は、円筒状部材であることを特徴とする請求項１に記載の案内具。The guide device according to claim 1, wherein the guide member is a cylindrical member. 前記保持部材は、薄板状の一対の把持部を備えていることを特徴とする請求項１又は２に記載の案内具。The guide device according to claim 1, wherein the holding member includes a pair of thin plate-like gripping portions. 前記ガイド部材には、前記保持部材に当接して切削方向の移動を規制する規制部が形成されていることを特徴とする請求項１から３のいずれかに記載の案内具。The guide tool according to any one of claims 1 to 3, wherein the guide member is formed with a restricting portion that contacts the holding member and restricts movement in a cutting direction.
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KR101963696B1 (en) * 2017-07-24 2019-03-29 (주) 예스바이오테크 Guide ring for dental surgery
CN109157295A (en) * 2018-11-02 2019-01-08 青岛大学附属医院 A kind of implant sound of baby talk root positioning auxiliaring tool
TWI705800B (en) * 2019-07-23 2020-10-01 巧藝國際有限公司 Dental implant guide tool set and implant guide sleeve
US11612453B2 (en) 2019-07-23 2023-03-28 Joy International Co. Dental implant guiding tool set and dental implant guiding sleeve thereof

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