JP2011224147A - Positioning device for surgical template - Google Patents

Positioning device for surgical template Download PDF

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JP2011224147A
JP2011224147A JP2010096765A JP2010096765A JP2011224147A JP 2011224147 A JP2011224147 A JP 2011224147A JP 2010096765 A JP2010096765 A JP 2010096765A JP 2010096765 A JP2010096765 A JP 2010096765A JP 2011224147 A JP2011224147 A JP 2011224147A
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positioning
pin
surgical template
drill guide
positioning device
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JP5493171B2 (en
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Hiroaki Ozaki
浩明 尾崎
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Mat Dental Japan Inc
Materialise Dental Japan Inc
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Mat Dental Japan Inc
Materialise Dental Japan Inc
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Abstract

PROBLEM TO BE SOLVED: To provide a positioning device for a surgical template, the positioning device with which, in fixedly positioning a surgical template into a jawbone using positioning pins, a distal end of one positioning pin is adjusted to a length suitable for the jawbone and inserted without preparing a number of positioning pins.SOLUTION: In the positioning device for a surgical template, a positioning pin 10 includes: a cylindrical body 11 for adjusting a depth of pin insertion, the cylindrical body equipped with stopper faces (11b, 14a) that are brought into abutment on an end face on the oral cavity side of drill guide tubes (8, 9), and also equipped with a female thread part 11a on the inner peripheral face; and a pin body 12 in which a male thread part 12b on the proximal side is threadedly engaged with the female thread part 11a in a manner movably adjustable forward and backward in the axial direction and in which the tip end part is inserted into positioning holes (16, 17).

Description

この発明は、歯科医療のインプラント穴をドリル等の穴開工具で形成（穿孔）する際に、穴開け工具のガイドに用いる外科用テンプレートが顎骨に対して位置ズレないように、この外科用テンプレートを顎骨に対して位置決めするための外科用テンプレート位置決装置に関するものである。   The present invention provides a surgical template for preventing the position of a surgical template used for guiding a drilling tool from a jaw bone when a dental implant hole is formed (drilled) with a drilling tool such as a drill. The present invention relates to a surgical template positioning device for positioning a bone with respect to a jawbone.

歯を失ったときに、インプラントを顎骨に埋め込んで、咀嚼や審美性の回復を図るインプラント治療がある。このインプラントは、一般に、顎骨に埋め込まれる人工歯根としてのフィクスチャー（インプラント本体又はインプラント体と言う）と、このフィクスチャーに接続されて支持台となるアバットメントと、アバットメントに装着する義歯等を備えている。   There are implant treatments that attempt to restore mastication and aesthetics by implanting an implant in the jawbone when the tooth is lost. This implant generally includes a fixture as an artificial tooth root (referred to as an implant body or an implant body) embedded in a jawbone, an abutment connected to the fixture as a support base, a denture attached to the abutment, and the like. I have.

このフィクスチャーを顎骨に埋設するために、一般にドリルやオステオトーム等の穴開工具により顎骨にインプラント穴（インプラント埋設穴）を形成（穿孔）する手術が行われる（例えば、特許文献１参照）。また、インプラントによる義歯は複数隣接して設けられることがある。この場合には、複数の義歯の審美性や咀嚼性等を高めるために、隣り合うインプラント穴の形成する位置を正確に出す必要がある。   In order to embed this fixture in the jawbone, an operation is generally performed in which an implant hole (implant burial hole) is formed (drilled) in the jawbone with a drilling tool such as a drill or an osteotome (for example, see Patent Document 1). In addition, a plurality of dentures made of implants may be provided adjacent to each other. In this case, in order to improve the aesthetics and mastication properties of a plurality of dentures, it is necessary to accurately determine the positions where adjacent implant holes are formed.

このために、従来からインプラント穴をインプラントドリルで複数開ける際に、穴開け位置がズレないようにするために、外科用テンプレート（ドリル穿孔テンプレート）でドリルをガイドすることが行われている（例えば、特許文献２参照）。   For this reason, conventionally, when a plurality of implant holes are drilled with an implant drill, the drill is guided with a surgical template (drill drilling template) in order to prevent the drilling position from shifting (for example, , See Patent Document 2).

この外科用テンプレートは、口腔内の歯牙欠損部の形状を型取りして歯牙欠損部型を作り、この歯牙欠損部型により歯牙欠損部にフィットする形状のテンプレート本体を形成すると共に、このテンプレート本体に顎骨の設定位置に向けて開口する複数の位置決孔を間隔をおいて形成して、この位置決孔にドリルガイド用のドリルガイドチューブを嵌着した構造を有している。   This surgical template is formed by shaping the shape of a tooth defect portion in the oral cavity to form a tooth defect portion mold, and the template body having a shape that fits the tooth defect portion is formed by the tooth defect portion mold. A plurality of positioning holes that open toward the set position of the jawbone are formed at intervals, and a drill guide tube for a drill guide is fitted into the positioning holes.

特開２００７−３１３２８５号公報JP 2007-313285 A 特表２００５−５１８８３４号公報JP 2005-518834 A

ところで、このドリルガイドチューブによりインプラントドリルをガイドさせる際には、穴開け位置がズレないようにするために、テンプレート本体を顎骨に固定する必要がある。この固定には位置決ピンを用いることが考えられている。例えば、外科用テンプレートを歯牙欠損部にフィットさせて、外科用テンプレートの複数のドリルガイドチューブの一つに挿通したドリルで顎骨に位置決穴を穿孔した後に、このドリルガイドチューブに位置決ピンを嵌合すると共に位置決ピンの先端部を位置決穴に挿入することで、テンプレート本体を顎骨に固定することが考えられている。   By the way, when the implant drill is guided by this drill guide tube, it is necessary to fix the template main body to the jawbone so that the drilling position is not shifted. It is considered to use a positioning pin for this fixing. For example, after fitting a surgical template to a tooth defect and drilling a positioning hole in the jawbone with a drill inserted into one of a plurality of drill guide tubes of the surgical template, a positioning pin is attached to the drill guide tube. It is considered that the template body is fixed to the jawbone by fitting and inserting the distal end portion of the positioning pin into the positioning hole.

また、位置決ピンが患者により強く噛まれた場合、位置決ピンの先端部が位置決穴の内端を強く押圧して痛み等を発生するのは好ましくないので、位置決ピンが患者により強く噛まれても、位置決ピンの先端部が位置決穴に深く埋入して位置決穴の内端を押圧することのないようにするのが望ましい。   In addition, when the positioning pin is bitten by the patient, it is not preferable that the tip of the positioning pin strongly presses the inner end of the positioning hole to cause pain or the like. Even if it is bitten, it is desirable to prevent the tip of the positioning pin from being deeply embedded in the positioning hole and pressing the inner end of the positioning hole.

しかし、この位置決穴の深さも形成する際にバラツキがあるので、この深さのバラツキを吸収して、好ましい位置決を行うには位置決穴の深さに応じて長さの調整が必要となる。しかも、ドリルで顎骨に位置決穴の深さに応じて長さの調整ができないため、多くの長さの位置決ピンを用意する必要がある。また、位置決ピンが長すぎたりして口腔内で大きく出っ張るために扱いにくかったり、あるいは短すぎて骨内に十分固定できないことも考えられる。   However, since there is a variation in forming the depth of the positioning hole, it is necessary to adjust the length according to the depth of the positioning hole in order to absorb the variation in the depth and perform a preferable positioning. It becomes. In addition, since the length cannot be adjusted in the jawbone according to the depth of the positioning hole with a drill, it is necessary to prepare positioning pins of many lengths. Further, it is conceivable that the positioning pin is too long and it is difficult to handle because it protrudes greatly in the oral cavity, or it is too short to be sufficiently fixed in the bone.

そこで、この発明は、位置決ピンを用いた外科用テンプレートの顎骨への位置決固定に際して、多くの位置決ピンを用意することなく、一つの位置決ピンの先端部を顎骨の位置決穴に適切な長さに調整して挿入できる外科用テンプレート位置決装置を提供することを目的とするものである。   Therefore, in the present invention, when positioning the surgical template to the jaw bone using the positioning pin, the distal end portion of one positioning pin is used as the positioning hole of the jaw bone without preparing many positioning pins. It is an object of the present invention to provide a surgical template positioning device that can be inserted with an appropriate length.

この目的を達成するため、この発明は、穿孔位置を設定する複数のドリルガイドチューブが設けられた外科用テンプレートを口腔内の歯牙欠損部にフィットさせて、前記複数のドリルガイドチューブの少なくとも一つにインプラントドリルをガイドさせて顎骨に位置決穴を穿孔すると共に、前記位置決穴に対応する前記ドリルガイドチューブに位置決ピンを挿入して、前記位置決ピンの先端部を前記位置決穴に挿入することにより、前記外科用テンプレートを前記歯牙欠損部に位置決固定させる外科用テンプレート位置決装置において、前記位置決ピンは、前記ドリルガイドチューブの口腔側端面に当接させるストッパ面が設けられ且つ内周面に雌ねじ部が設けられたピン挿入深さ調整筒体と、基部側の雄ねじ部が前記雌ねじ部に軸線方向に進退移動調整可能に螺着され且つ先端部が前記位置決穴に挿入させられるピン本体を備えることを特徴とする。   In order to achieve this object, the present invention is configured to fit a surgical template provided with a plurality of drill guide tubes for setting a drilling position to a tooth defect portion in the oral cavity, and to at least one of the plurality of drill guide tubes. The implant drill is guided to drill a positioning hole in the jawbone, and a positioning pin is inserted into the drill guide tube corresponding to the positioning hole, and the tip of the positioning pin is used as the positioning hole. In the surgical template positioning device for positioning and fixing the surgical template to the tooth defect portion by insertion, the positioning pin is provided with a stopper surface that abuts on the oral cavity side end surface of the drill guide tube. A pin insertion depth adjusting cylinder having an internal thread portion provided on the inner peripheral surface, and a male thread portion on the base side in the axial direction of the female thread portion. And the tip portion are moved adjustably screwed withdrawal is characterized in that it comprises a pin body which is then inserted into the positioning hole.

この構成によれば、位置決ピンを用いた外科用テンプレートの顎骨への位置決固定に際して、多くの位置決ピンを用意することなく、一つの位置決ピンの先端部を顎骨の位置決穴に適切な長さに調整して挿入できる。この結果、位置決ピンが患者により強く噛まれても、位置決ピンの先端部が位置決穴に深く埋入して位置決穴の内端を押圧することがない。   According to this configuration, when positioning the surgical template to the jaw bone using the positioning pin, the distal end portion of one positioning pin is used as the positioning hole of the jaw bone without preparing many positioning pins. Can be inserted with the proper length. As a result, even if the positioning pin is bitten by the patient, the distal end of the positioning pin is not deeply embedded in the positioning hole and does not press the inner end of the positioning hole.

この発明にかかる外科用テンプレート及びその位置決装置を用いる歯牙欠損部の一例を示す斜視図である。It is a perspective view which shows an example of the tooth defect part using the surgical template concerning this invention, and its positioning apparatus. 図１の要部拡大説明図である。FIG. 2 is an enlarged explanatory view of a main part of FIG. 1. 図２の外科用テンプレートを用いて位置決穴を開ける場合の一例を示す説明図である。It is explanatory drawing which shows an example in the case of opening a positioning hole using the surgical template of FIG. 図２の外科用テンプレートを用いて位置決穴を開ける場合の他の例を示す説明図である。It is explanatory drawing which shows the other example at the time of making a positioning hole using the surgical template of FIG. 図２の外科用テンプレートの位置決装置である位置決ピンの分解斜視図である。It is a disassembled perspective view of the positioning pin which is the positioning device of the surgical template of FIG. 図５の部品を組み付けた位置決ピンの断面図である。It is sectional drawing of the positioning pin which assembled | attached the components of FIG. 図２の歯牙欠損部に配置した外科用テンプレートに位置決ピンを組み付ける際の説明図である。It is explanatory drawing at the time of assembling the positioning pin to the surgical template arrange | positioned in the tooth defect part of FIG. 図７の歯牙欠損部に配置した外科用テンプレートを位置決ピンで位置決めした説明図である。It is explanatory drawing which positioned the surgical template arrange | positioned in the tooth | gear defect | deletion part of FIG. 7 with the positioning pin. 図８の上下に延びる位置決ピンの部分の断面図である。It is sectional drawing of the part of the positioning pin extended in the up-down direction of FIG. 図８の横方向に延びる位置決ピンの部分の断面図である。It is sectional drawing of the part of the positioning pin extended in the horizontal direction of FIG. この発明にかかる位置決装置である位置決ピンの他の例を示す分赤い斜視図である。It is a minute red perspective view which shows the other example of the positioning pin which is the positioning apparatus concerning this invention. 図１１の部品を組み付けた位置決ピンの断面図である。It is sectional drawing of the positioning pin which assembled | attached the components of FIG.

以下、この発明の実施の形態を図面に基づいて説明する。
[構成]
図１は、下顎の口腔内の部分を示したものである。この図１において、１は口腔内下顎部、２は口腔内下顎部１の歯牙配列部、３は口腔内下顎部１の歯牙欠損部を示したものである。この口腔内下顎部１は、図２に示したように顎骨４と、この顎骨４の上部を覆う歯肉部５を備えている。この歯肉部５は、外歯肉部５ａと、内歯肉部５ｂおよび上歯肉部５ｃを有する。
＜外科用テンプレート６＞
図１の歯牙欠損部３にインプラントを施すには、図２に示したような外科用テンプレート６をインプラント穴穿孔用テンプレートとして用いる。この外科用テンプレート６は、テンプレート本体７と、複数のメインのドリルガイドチューブ８と、複数のサブのドリルガイドチューブ９を有する。このテンプレート本体７は、図３，図４に示したように、外歯肉部５ａにフィットさせる外側部７ａと、内歯肉部５ｂにフィットさせる内側部７ｂと、上歯肉部５ｃにフィットするように外側部７ａと内側部７ｂを連設している連設部７ｃを有する。このようなテンプレート本体７は、口腔内下顎部１の歯牙欠損部３の歯肉部型を作って、歯肉部型を用いて形成したものである。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Constitution]
FIG. 1 shows a portion of the lower jaw in the oral cavity. In FIG. 1, reference numeral 1 denotes an intraoral mandibular part, 2 denotes a tooth arrangement part of the intraoral mandibular part 1, and 3 denotes a tooth defect part of the intraoral mandibular part 1. As shown in FIG. 2, the intraoral mandibular portion 1 includes a jawbone 4 and a gingival portion 5 that covers the upper portion of the jawbone 4. The gingival part 5 has an outer gingival part 5a, an inner gingival part 5b, and an upper gingival part 5c.
<Surgery template 6>
In order to implant the tooth defect portion 3 of FIG. 1, a surgical template 6 as shown in FIG. 2 is used as a template for implant hole drilling. The surgical template 6 includes a template body 7, a plurality of main drill guide tubes 8, and a plurality of sub drill guide tubes 9. As shown in FIGS. 3 and 4, the template main body 7 is fitted to the outer gingiva portion 5a, the outer portion 7a to be fitted, the inner gingival portion 5b to be fitted, and the upper gingival portion 5c. It has the connection part 7c which has continuously provided the outer side part 7a and the inner side part 7b. Such a template main body 7 is formed using a gingival part mold by forming a gingival part mold of the tooth defect part 3 of the intraoral mandibular part 1.

そして、外側部７ａには歯牙配列方向に間隔をおいて複数の取付穴７ｄが形成され、連設部７ｃには歯牙配列方向に間隔をおいて複数の取付穴７ｅが形成されている。また、この複数の取付穴７ｄには例えばチタン合金等の金属製のドリルガイドチューブ９が嵌着固定され、複数の取付穴７ｅには例えばチタン合金等の金属製のドリルガイドチューブ８が嵌着固定されている。   A plurality of attachment holes 7d are formed at intervals in the tooth arrangement direction on the outer side 7a, and a plurality of attachment holes 7e are formed at intervals in the tooth arrangement direction on the continuous portion 7c. Further, a drill guide tube 9 made of metal such as titanium alloy is fitted and fixed in the plurality of mounting holes 7d, and a drill guide tube 8 made of metal such as titanium alloy is fitted in the plurality of mounting holes 7e. It is fixed.

このような外科用テンプレート６を用いて顎骨４にインプラント穴を形成するには、図２〜図４に示したように外科用テンプレート６を歯牙欠損部３にフィットさせて、外科用テンプレート６を歯牙欠損部３に位置決固定する。
＜テンプレート位置決装置＞
この位置決固定には、図５，図６に示したような位置決ピン１０をテンプレート位置決装置として用いる。この位置決ピン１０は、内面に雌ねじ部１１ａが形成されたピン挿入深さ調整筒体（環状ストッパ部材）１１と、このピン挿入深さ調整筒体１１を貫通するピン本体１２を有する。このピン挿入深さ調整筒体１１は、ドリルガイドチューブ８，９内に嵌合可能に外面が小径に形成された嵌合筒部１３と、ドリルガイドチューブ８，９の口腔側端部に当接させるストッパ面１４ａが設けられ且つ外面が大径に形成されたストッパ筒部１４を備えている。 In order to form an implant hole in the jawbone 4 using such a surgical template 6, the surgical template 6 is fitted to the tooth defect portion 3 as shown in FIGS. The position is fixed to the tooth defect portion 3.
<Template positioning device>
For this positioning, a positioning pin 10 as shown in FIGS. 5 and 6 is used as a template positioning device. The positioning pin 10 includes a pin insertion depth adjusting cylinder (annular stopper member) 11 having an internal thread portion 11 a formed on the inner surface, and a pin main body 12 penetrating the pin insertion depth adjusting cylinder 11. The pin insertion depth adjusting cylinder 11 is abutted against the fitting cylinder part 13 whose outer surface is formed with a small diameter so that it can be fitted into the drill guide tubes 8 and 9, and the oral cavity side end part of the drill guide tubes 8 and 9. A stopper cylinder portion 14 is provided which is provided with a stopper surface 14a to be brought into contact with and has an outer surface formed with a large diameter.

また、ピン本体１２は、ピン挿入深さ調整筒体１１より小径の挿入軸部１２ａと、挿入軸部１２ａの基部に設けられ且つたピン挿入深さ調整筒体１１の雌ねじ部１１ａに螺着された大径の雄ねじ部１２ｂと、雄ねじ部１２ｂの端部に設けられた半球状の頭部１２ｃを有する。この頭部１２ｃには、飲み込み防止用の紐を通す紐挿通孔１２ｄが形成されている。そして、ピン本体１２をピン挿入深さ調整筒体１１に対して軸線回りに時計回り方向又は反時計回り方向に相対回転させて、ピン本体１２をピン挿入深さ調整筒体１１に対して進退動させることで、ピン本体１２の先端からピン挿入深さ調整筒体１１のストッパ面１４ａまでの寸法を調整することができるようになっている。尚、ピン本体１２の長さは例えば１５〜４０ｍｍ、骨内に差し込む挿入軸部１２ａの長さは例えば１０〜１５ｍｍ、挿入軸部１２ａの直径は例えば1.5mm〜５mmである。
[作用]
次に、このような構成の位置決ピン１０を用いて外科用テンプレート６を歯牙欠損部３に位置決めする手順を説明する。 The pin body 12 is screwed into an insertion shaft portion 12a having a smaller diameter than the pin insertion depth adjustment cylinder 11 and a female screw portion 11a of the pin insertion depth adjustment cylinder 11 provided at the base of the insertion shaft portion 12a. And a hemispherical head portion 12c provided at the end of the male screw portion 12b. The head 12c is formed with a string insertion hole 12d through which a swallowing prevention string is passed. Then, the pin body 12 is rotated relative to the pin insertion depth adjustment cylinder 11 in the clockwise direction or the counterclockwise direction around the axis, and the pin body 12 is moved forward and backward with respect to the pin insertion depth adjustment cylinder 11. By moving, the dimension from the tip of the pin main body 12 to the stopper surface 14a of the pin insertion depth adjusting cylinder 11 can be adjusted. The length of the pin body 12 is, for example, 15 to 40 mm, the length of the insertion shaft portion 12a to be inserted into the bone is, for example, 10 to 15 mm, and the diameter of the insertion shaft portion 12a is, for example, 1.5 mm to 5 mm.
[Action]
Next, a procedure for positioning the surgical template 6 on the tooth defect portion 3 using the positioning pin 10 having such a configuration will be described.

先ず、図２〜図４に示したように外科用テンプレート６を歯牙欠損部３にフィットさせて、小径のインプラントドリル１５の基部をドリルガイドチューブ８にガイドさせて、インプラントドリル１５の先端部で顎骨４に上側に開口する位置決穴１６を形成する。そして、図７に示したように、位置決ピン１０のピン本体１２の先端側を下に向けて、ピン本体１２の挿入軸部１２ａの先端部を図８，図９のように位置決穴１６に挿入する。この際、位置決ピン１０のピン挿入深さ調整筒体１１の嵌合筒部１３をドリルガイドチューブ８に嵌合すると共に、ピン本体１２に対してピン挿入深さ調整筒体１１を回転操作して、ピン挿入深さ調整筒体１１のストッパ面１４ａをドリルガイドチューブ８の外端に当接させる。   First, as shown in FIGS. 2 to 4, the surgical template 6 is fitted to the tooth defect portion 3, and the base portion of the small-diameter implant drill 15 is guided to the drill guide tube 8. A positioning hole 16 opening upward is formed in the jawbone 4. Then, as shown in FIG. 7, the distal end side of the pin body 12 of the positioning pin 10 faces downward, and the distal end portion of the insertion shaft portion 12a of the pin body 12 is positioned as shown in FIGS. 16 is inserted. At this time, the fitting cylinder portion 13 of the pin insertion depth adjustment cylinder 11 of the positioning pin 10 is fitted to the drill guide tube 8 and the pin insertion depth adjustment cylinder 11 is rotated with respect to the pin body 12. Then, the stopper surface 14 a of the pin insertion depth adjusting cylinder 11 is brought into contact with the outer end of the drill guide tube 8.

次に、図４に示したように、小径のインプラントドリル１５の基部をドリルガイドチューブ９にガイドさせて、インプラントドリル１５の先端部で顎骨４に前側に開口する位置決穴１７を形成する。そして、図７に示したように、位置決ピン１０のピン本体１２の先端側を前側から外歯肉部５ａに向けて、ピン本体１２の挿入軸部１２ａの先端部を図８，図１０のように位置決穴１７に挿入する。この際、位置決ピン１０のピン挿入深さ調整筒体１１の嵌合筒部１３をドリルガイドチューブ９に嵌合すると共に、ピン本体１２に対してピン挿入深さ調整筒体１１を回転操作して、ピン挿入深さ調整筒体１１のストッパ面１４ａをドリルガイドチューブ９の外端に当接させる。   Next, as shown in FIG. 4, the base portion of the small-diameter implant drill 15 is guided by the drill guide tube 9, and the positioning hole 17 that opens forward in the jawbone 4 at the distal end portion of the implant drill 15 is formed. Then, as shown in FIG. 7, the distal end side of the pin body 12 of the positioning pin 10 is directed from the front side toward the outer gingival portion 5a, and the distal end portion of the insertion shaft portion 12a of the pin body 12 is moved as shown in FIGS. Insert into the positioning hole 17 as follows. At this time, the fitting cylinder portion 13 of the pin insertion depth adjustment cylinder 11 of the positioning pin 10 is fitted to the drill guide tube 9 and the pin insertion depth adjustment cylinder 11 is rotated with respect to the pin body 12. Then, the stopper surface 14 a of the pin insertion depth adjusting cylinder 11 is brought into contact with the outer end of the drill guide tube 9.

このように外科用テンプレート６を歯牙欠損部３に複数の位置決ピン１０により位置決固定する。この状態では、ピン本体１２に対してピン挿入深さ調整筒体１１を回転操作して、位置決ピン１０の挿入軸部１２ａの先端と位置決穴１６，１７の内端との距離を少し開けておくことで、位置決ピン１０の頭部１２ｃが強く噛まれたり強く押されたりしても、挿入軸部１２ａの先端部が位置決穴１６，１７の内端を押圧することはない。   Thus, the surgical template 6 is positioned and fixed to the tooth defect portion 3 by the plurality of positioning pins 10. In this state, the pin insertion depth adjusting cylinder 11 is rotated with respect to the pin body 12, and the distance between the distal end of the insertion shaft portion 12a of the positioning pin 10 and the inner ends of the positioning holes 16 and 17 is slightly increased. By opening, even if the head portion 12c of the positioning pin 10 is strongly bitten or strongly pressed, the distal end portion of the insertion shaft portion 12a does not press the inner ends of the positioning holes 16 and 17. .

以上説明した実施例では、ピン挿入深さ調整筒体１１が嵌合筒部１３とストッパ筒部１４を備える構成としたが、必ずしもこれに限定されるものではない。例えば、図１１に示したように、ピン挿入深さ調整筒体１１はストレートに形成しても良い。この場合、ピン挿入深さ調整筒体１１の一端端がドリルガイドチューブ８，９の外端面へのストッパ面１１ｂとなる。また、この場合には、ピン本体１２の挿入軸部１２ａと雄ねじ部１２ｂとの間に、ピン挿入深さ調整筒体１１の雌ねじ部１１ａの内径と同じ外径の嵌合軸部１２ｅを設けて、この嵌合軸部１２ｅをドリルガイドチューブ８，９に嵌合させるようにすると良い。   In the embodiment described above, the pin insertion depth adjusting cylinder 11 includes the fitting cylinder part 13 and the stopper cylinder part 14, but the present invention is not necessarily limited thereto. For example, as shown in FIG. 11, the pin insertion depth adjusting cylinder 11 may be formed straight. In this case, one end of the pin insertion depth adjusting cylinder 11 serves as a stopper surface 11 b to the outer end surface of the drill guide tubes 8 and 9. In this case, a fitting shaft portion 12e having the same outer diameter as the inner diameter of the female screw portion 11a of the pin insertion depth adjusting cylinder 11 is provided between the insertion shaft portion 12a of the pin body 12 and the male screw portion 12b. The fitting shaft portion 12e may be fitted to the drill guide tubes 8 and 9.

以上説明したように、この発明の実施の形態の外科用テンプレート位置決装置は、穿孔位置を設定する複数のドリルガイドチューブ８，９が設けられた外科用テンプレート６を口腔内の歯牙欠損部３にフィットさせて、前記複数のドリルガイドチューブ（８，９）の少なくとも一つにインプラントドリル１５をガイドさせて顎骨に位置決穴（１６，１７）を穿孔すると共に、前記位置決穴１６に対応する前記ドリルガイドチューブ（８，９）に位置決ピン１０を嵌合挿入して、前記位置決ピン１０の先端部を前記位置決穴（１６，１７）に挿入することにより、前記外科用テンプレート６を前記歯牙欠損部３に位置決固定させるようになっている。しかも、前記位置決ピン１０は、前記ドリルガイドチューブ（８，９）の口腔側端面に当接させるストッパ面（１１ｂ，１４ａ）が設けられ且つ内周面に雌ねじ部１１ａが設けられたピン挿入深さ調整筒体１１と、基部側の雄ねじ部１２ｂが前記雌ねじ部１１ａに軸線方向に進退移動調整可能に螺着され且つ先端部が前記位置決穴（１６，１７）に挿入させられるピン本体１２を備えている。   As described above, the surgical template positioning apparatus according to the embodiment of the present invention uses the surgical template 6 provided with the plurality of drill guide tubes 8 and 9 for setting the drilling position as the tooth defect portion 3 in the oral cavity. The implant drill 15 is guided in at least one of the plurality of drill guide tubes (8, 9) to drill the positioning holes (16, 17) in the jawbone and correspond to the positioning holes 16 The surgical template is inserted by fitting and inserting the positioning pin 10 into the drill guide tube (8, 9), and inserting the distal end portion of the positioning pin 10 into the positioning hole (16, 17). 6 is positioned and fixed to the tooth defect portion 3. Moreover, the positioning pin 10 is provided with a pin insertion provided with stopper surfaces (11b, 14a) to be brought into contact with the oral cavity side end surfaces of the drill guide tubes (8, 9) and with an internal thread portion 11a on the inner peripheral surface. A depth adjusting cylinder 11 and a male threaded portion 12b on the base side are screwed to the female threaded portion 11a so as to be able to move back and forth in the axial direction, and a tip body is inserted into the positioning hole (16, 17). 12 is provided.

この構成によれば、位置決ピン１０を用いた外科用テンプレート６の顎骨４への位置決固定に際して、多くの位置決ピンを用意することなく、一つの位置決ピンの先端部を顎骨４の位置決穴（１６，１７）に適切な長さに調整して挿入できる。この結果、位置決ピン１０が患者により強く噛まれても、位置決ピン１０の先端部が位置決穴（１６，１７）に深く埋入して位置決穴の内端を押圧することがない。   According to this configuration, when positioning the surgical template 6 to the jawbone 4 using the positioning pin 10, the distal end portion of one positioning pin is attached to the jawbone 4 without preparing many positioning pins. It can be inserted into the positioning hole (16, 17) with an appropriate length. As a result, even if the positioning pin 10 is bitten by the patient, the distal end portion of the positioning pin 10 is not deeply embedded in the positioning holes (16, 17) and does not press the inner end of the positioning hole. .

また、この発明の実施の形態の外科用テンプレート位置決装置において、前記ピン挿入深さ調整筒体１１は、前記ドリルガイドチューブ（８，９）に嵌合させる嵌合筒部１３と、前記嵌合筒部１３に連設され且つ外径が前記嵌合筒部１３の外径より大径の外径を有するストッパ筒部１４を備え、前記ストッパ筒部１４の前記嵌合筒部１３側の段面が前記ストッパ面１４ａとなっている。   In the surgical template positioning apparatus according to the embodiment of the present invention, the pin insertion depth adjusting cylinder 11 includes a fitting cylinder portion 13 to be fitted to the drill guide tube (8, 9), and the fitting. A stopper cylinder portion 14 is provided which is connected to the combined cylinder portion 13 and has an outer diameter larger than the outer diameter of the fitting cylinder portion 13, and is provided on the fitting cylinder portion 13 side of the stopper cylinder portion 14. The step surface is the stopper surface 14a.

この構成によれば、嵌合筒部１３をドリルガイドチューブ（８，９）に嵌合させることで、ドリルガイドチューブ（８，９）と位置決ピン１０との位置決ができる。   According to this configuration, the positioning of the drill guide tube (8, 9) and the positioning pin 10 can be performed by fitting the fitting tube portion 13 to the drill guide tube (8, 9).

更に、この発明の実施の形態の外科用テンプレート位置決装置において、前記ピン挿入深さ調整筒体１１は前記ピン本体１２の先端側の端面を前記ストッパ面１１ｂとして有し、前記ピン本体１２の前記雄ねじ部１２ｂ側の部分に前記ドリルガイドチューブ（８，９）に嵌合させる嵌合軸部１２ｅを有する。   Furthermore, in the surgical template positioning apparatus according to the embodiment of the present invention, the pin insertion depth adjusting cylinder 11 has an end face on the distal end side of the pin main body 12 as the stopper surface 11b. A fitting shaft portion 12e to be fitted to the drill guide tube (8, 9) is provided at a portion on the male screw portion 12b side.

この構成によれば、嵌合軸部１２ｅをドリルガイドチューブ（８，９）に嵌合されることで、ドリルガイドチューブ（８，９）と位置決ピン１０との位置決ができる。   According to this configuration, the positioning of the drill guide tube (8, 9) and the positioning pin 10 can be performed by fitting the fitting shaft portion 12e to the drill guide tube (8, 9).

また、この発明の実施の形態の外科用テンプレート位置決装置において、前記ピン本体１２の基端部には端面を球面状に形成した頭部１２ｃが設けられている。   In the surgical template positioning apparatus according to the embodiment of the present invention, the proximal end of the pin body 12 is provided with a head 12c having a spherical end surface.

この構成によれば、頭部１２ｃが球面状であるので、位置決ピン１０が口腔内を傷つけるのを防止できる。   According to this configuration, since the head portion 12c is spherical, the positioning pin 10 can be prevented from being damaged in the oral cavity.

１・・・口腔内下顎部
３・・・歯牙欠損部
４・・・顎骨
６・・・外科用テンプレート
８・・・ドリルガイドチューブ
９・・・ドリルガイドチューブ
１０・・・位置決ピン
１１・・・ピン挿入深さ調整筒体
１１ａ・・・雌ねじ部
１１ｂ・・・ストッパ面
１２・・・ピン本体
１２ａ・・・挿入軸部
１２ｂ・・・雄ねじ部
１２ｃ・・・頭部
１２ｅ・・・嵌合軸部
１３・・・嵌合筒部
１４・・・ストッパ筒部
１４ａ・・・ストッパ面
１５・・・インプラントドリル
１６・・・位置決穴
１７・・・位置決穴 DESCRIPTION OF SYMBOLS 1 ... Intraoral lower jaw part 3 ... Tooth defect part 4 ... Jaw bone 6 ... Surgical template 8 ... Drill guide tube 9 ... Drill guide tube 10 ... Positioning pin 11 ······························ Pin insertion depth adjustment cylinder 11a.. Fitting shaft part 13 ... fitting cylinder part 14 ... stopper cylinder part 14a ... stopper surface 15 ... implant drill 16 ... positioning hole 17 ... positioning hole

Claims (4)

穿孔位置を設定する複数のドリルガイドチューブが設けられた外科用テンプレートを口腔内の歯牙欠損部にフィットさせて、前記複数のドリルガイドチューブの少なくとも一つにインプラントドリルをガイドさせて顎骨に位置決穴を穿孔すると共に、前記位置決穴に対応する前記ドリルガイドチューブに位置決ピンを嵌合挿入して、前記位置決ピンの先端部を前記位置決穴に挿入することにより、前記外科用テンプレートを前記歯牙欠損部に位置決固定させる外科用テンプレート位置決装置において、
前記位置決ピンは、前記ドリルガイドチューブの口腔側端面に当接させるストッパ面が設けられ且つ内周面に雌ねじ部が設けられたピン挿入深さ調整筒体と、基部側の雄ねじ部が前記雌ねじ部に軸線方向に進退移動調整可能に螺着され且つ先端部が前記位置決穴に挿入させられるピン本体を備えることを特徴とする外科用テンプレート位置決装置。 A surgical template provided with a plurality of drill guide tubes for setting a drilling position is fitted to a tooth defect portion in the oral cavity, and an implant drill is guided in at least one of the plurality of drill guide tubes to be positioned on the jawbone. The surgical template is formed by drilling a hole, fitting and inserting a positioning pin into the drill guide tube corresponding to the positioning hole, and inserting a tip of the positioning pin into the positioning hole. In the surgical template positioning device for fixing the positioning to the tooth defect part,
The positioning pin includes a pin insertion depth adjusting cylinder having a stopper surface to be brought into contact with the oral cavity side end surface of the drill guide tube and having an internal thread portion on an inner peripheral surface, and a male screw portion on a base side is A surgical template positioning device comprising: a pin main body screwed to an internal thread portion so as to be capable of moving forward and backward in the axial direction and having a tip portion inserted into the positioning hole. 請求項１に記載の外科用テンプレート位置決装置において、前記ピン挿入深さ調整筒体は、前記ドリルガイドチューブに嵌合させる嵌合筒部と、前記嵌合筒部に連設され且つ外径が前記嵌合筒部の外径より大径の外径を有するストッパ筒部を備え、前記ストッパ筒部の前記嵌合筒部側の段面が前記ストッパ面となっていることを特徴とする外科用テンプレート位置決装置。   2. The surgical template positioning device according to claim 1, wherein the pin insertion depth adjustment cylindrical body is fitted to the drill guide tube, and is connected to the fitting cylinder portion and has an outer diameter. Comprises a stopper cylinder part having an outer diameter larger than the outer diameter of the fitting cylinder part, and the step surface of the stopper cylinder part on the fitting cylinder part side serves as the stopper surface. Surgical template positioning device. 請求項１に記載の外科用テンプレート位置決装置において、前記ピン挿入深さ調整筒体は前記ピン本体の先端側の端面を前記ストッパ面として有し、前記ピン本体の前記雄ねじ部側の部分に前記ドリルガイドチューブに嵌合させる嵌合軸部を有することを特徴とする外科用テンプレート位置決装置。   The surgical template positioning apparatus according to claim 1, wherein the pin insertion depth adjusting cylinder has an end surface on a distal end side of the pin main body as the stopper surface, and a portion on the male screw portion side of the pin main body. A surgical template positioning device having a fitting shaft for fitting with the drill guide tube. 請求項１〜３のいずれか一つに記載の外科用テンプレート位置決装置において、前記ピン本体の基端部には端面を球面状に形成した頭部が設けられていることを特徴とする外科用テンプレート位置決装置。   The surgical template positioning device according to any one of claims 1 to 3, wherein a head portion having a spherical end surface is provided at a proximal end portion of the pin body. Template positioning device.
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CN102525674A (en) * 2012-02-27 2012-07-04 秦雍 Positioning device for tooth planting
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