JPH10118096A - Fitting tool for fixing plate for bone prosthesis material and fixing plate for bone prosthesis material - Google Patents

Fitting tool for fixing plate for bone prosthesis material and fixing plate for bone prosthesis material

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Publication number
JPH10118096A
JPH10118096A JP8298152A JP29815296A JPH10118096A JP H10118096 A JPH10118096 A JP H10118096A JP 8298152 A JP8298152 A JP 8298152A JP 29815296 A JP29815296 A JP 29815296A JP H10118096 A JPH10118096 A JP H10118096A
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JP
Japan
Prior art keywords
bone
hole
material
prosthetic material
fixture
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
JP8298152A
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Japanese (ja)
Inventor
Kazuki Deguchi
Michiichi Nishio
一樹 出口
道一 西尾
Original Assignee
Ngk Spark Plug Co Ltd
日本特殊陶業株式会社
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 Ngk Spark Plug Co Ltd, 日本特殊陶業株式会社 filed Critical Ngk Spark Plug Co Ltd
Priority to JP8298152A priority Critical patent/JPH10118096A/en
Publication of JPH10118096A publication Critical patent/JPH10118096A/en
Application status is Pending legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/688Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin for reattaching pieces of the skull
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/80Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8061Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones

Abstract

PROBLEM TO BE SOLVED: To obtain a fitting tool which is suitable for fitting a fixing plate for a bone prosthesis material with a plurality of holes for fitting contg. holes for fitting to an autobone to a bone prosthesis material with a through-hole penetrating to the inner and outer faces among the bone prosthesis materials used for prosthesis of a bone defect part of maxillofacial bones of cranial bones.
SOLUTION: A flange 4 for hooking is provided on the back end face of a fitting tool main body 2 in such a way that it can be inserted into a through- hole K from the inner face side and it is not projected from the outer face side. A screw hole 6 whose axial line is vertical to the back end face is provided on the apex face 5. This fitting tool 1 is inserted into the through-hole K of a bone prostheeis material C from the apex face 5 and a fixing plate 21 is applied on the outer face side and a screw member 23 is screwed into a screw hole 6 from a hole 22 for fitting to adjust it so as to position the hole 22 for fitting to an autobone Z at an appropriate position and a bottom hole is opened in the bone prosthesis material C and the screw member 23 is screwed therein. The bone prosthesis material C is strongly fixed thereby into the autobone Z.
COPYRIGHT: (C)1998,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、頭蓋顎顔面骨(以下、単に頭蓋骨ともいう)の一部が骨腫瘍等に冒されている場合など、その一部(自家骨)を切断、除去した後の骨欠損部の補填(手術)に使用される骨補填材のうち、内外面に貫通する適数の貫通孔を有するものに、自家骨への取付け用孔を含め複数の取付け用孔を備えた骨補填材固定プレートを取付けるのに使用される取付け具、及び骨補填材固定プレート(以下、単に固定プレートともいう)に関する。 BACKGROUND OF THE INVENTION The present invention is, craniomaxillofacial bones (hereinafter, simply referred to as the skull) part, such as when afflicted with bone tumors, etc., the cutting part (autologous bone) to remove among the bone substitute material for use in filling of the bone defect (surgery) after, to one having the proper number of through-holes penetrating the inner and outer surfaces, a plurality of mounting holes including a mounting hole to autogenous bone fixture is used to attach the bone prosthetic material fixed plate having, and bone substitute material fixed plate (hereinafter, simply referred to as the fixed plate) it relates.

【0002】 [0002]

【従来の技術】脳神経外科手術等で頭蓋骨を開頭し、その手術後に切り取った骨片(自家骨)を被せ、周囲の自家骨(生体骨)と固定する場合には、生体骨同士の固定のため、外側からプレートを跨がせるようにあてがってタッピングスクリュー(セルフタッピング式のスクリュー)によるねじ込みやハーケンといわれる抜け止め用突起付き釘などの打ち込みなどにより、かなりしっかりと固定できる。 And craniotomy skull Background of the Invention neurosurgical like, put the bone fragments taken after surgery (autologous bone), when fixed to the periphery of autogenous bone (living bone) is the living bone between the fixed Therefore, due to implantation, such as stop protrusion with nails omission is said screwing and Harken by tapping screws with held against such that cross the plate from the outside (self-tapping screws), can be quite securely. また、骨腫瘍等により、頭蓋骨の一部を切断、除去した後の骨欠損部を骨補填材で補填する場合でも、骨補填材がプラスチック製のものである場合には、 Further, the bone tumor or the like, cutting a portion of the skull, the bone defect after removal even when supplemented with bone substitute material, when the bone filling material is made of plastic,
その加工が容易なために、上記したのと同様にして固定できる。 Therefore machining is easy, it can be fixed in a manner similar to that described above.

【0003】ところで、このような骨補填材は、セラミック製のものがその生体適合性や生体骨との結合性などにおいてとくに優れており、好ましい材質とされている。 Meanwhile, such bone filling material is of a ceramic are particularly excellent in such binding with its biocompatibility and living bone is the preferred material. しかし、セラミック製の骨補填材はその性質上、ドリルによる孔開け程度の加工はできるが、それ自体にねじを立てることが困難なため、上記のようにして固定することはできず、次のようにして固定されていた。 However, ceramic bone substitute materials by their nature, can be the processing of the order of drilling with a drill, because it is difficult to make a screw itself, it can not be secured as described above, the following It had been fixed so.

【0004】すなわち、セラミック製の骨補填材で骨欠損部を補填する手術をする場合には、その骨欠損部と同様の形状、大きさのセラミック製の骨補填材をつくり、 [0004] That is, in the case of surgery to compensate for the bone defect with ceramic bone substitute material, made the same shape as the bone defect, the size of ceramic bone substitute material,
図10に示したように、その骨補填材Cの外周縁にドリルでもって適数個(骨補填材の大きさなどにもよるが外周縁に沿って10か所ぐらい)の貫通孔Kaを開ける。 As shown in FIG. 10, a through hole Ka of the outer peripheral edge of the bone prosthetic material C with a drill suitable number (depending on the size, etc. of the bone prosthetic material about ten along the outer edge) Open.
そして、この貫通孔Kaに対応するように患者本人の頭蓋骨(自家骨)Zの骨欠損部の内周縁にも同様の貫通孔Kbを斜めに開け、骨補填材Cをその骨欠損部に置換してその互いの貫通孔Ka,Kbにナイロン糸Nを通すことで縫合して縛り付けるようにして固定されていた。 Then, substituted opened similar through hole Kb to the inner peripheral edge of the bone defect of a patient himself skull (autogenous bone) Z so as to correspond to the through hole Ka obliquely, the bone prosthetic material C to the bone defect as another of the through holes Ka, it was fixed so as to tie sutured by passing the nylon yarn N to Kb and. なお、自家骨の貫通孔Kbを傾斜孔としているのは、自家骨の孔開け時や縫合過程で硬膜等を傷付けないようにするためである。 Incidentally, what the holes Kb autologous bone and the inclined hole is in order to avoid damaging the dura and the like in the hole drilled during stitching or course of autologous bone.

【0005】 [0005]

【発明が解決しようとする課題】ところで、このような手術においては、手術時間の短縮を図ることと、その術後における回復をできるだけ早めることが要求される。 [SUMMARY OF THE INVENTION Incidentally, in such procedures, and to shorten the operation time, it is required to accelerate as much as possible the recovery in the post-operative.
しかし、ナイロン糸による縫合による固定では、自家骨Zに多数の傾斜孔Kbを開ける必要のあることや、縫合の手間が大きいなどにより手術時間が多くかかり、その短縮を図ることは容易でないといった問題があった。 However, fixation by suturing with a nylon thread, and that there is a need to open a large number of inclined holes Kb autologous bone Z, it takes a long operation time due to time of the suture is large, such is not easy to achieve the shortening problem was there. とりわけ、自家骨に孔を開けるに際しては斜めに開ける必要があることからしても、その加工が難しくしたがって慎重に行う必要があるために、孔開けだけにもかなり多くの時間がかかっていた。 In particular, when a hole in the autologous bone is also from the fact that there is a need to open diagonally, to the processing needs be done carefully and follow difficult, it takes quite a lot of time to just drilled hole.

【0006】また、術後の回復を早めるためには、補填部位周辺の新生骨(骨組織)と骨補填材との結合を早期に図る必要があり、このためには、骨補填材Cが自家骨(生体骨)Zに堅固で安定して固定されないといけない。 [0006] In addition, in order to hasten the recovery of post-operative, it is necessary to make new bone around the filling site and the (bone tissue) the binding of the bone filling material at an early stage, for this purpose, is a bone substitute material C autogenous bone (living bone) do if they are not fixed robust and stable to Z. しかし、ナイロン糸による縫合による固定では、満足のいく十分な固定強度は得られないため、術後の回復に長期間を要する原因となっていた。 However, fixation by suturing with a nylon thread, a sufficient fixing strength satisfactory can not be obtained, causing requiring prolonged recovery after surgery. また、場合によっては、生体骨との固定が不十分なことに起因すると推察される骨組織の結合不良による偽関節の発生の原因ともなる。 In some cases, also cause the occurrence of nonunion by poor coupling of bone fixation between living bone is presumed to be due to insufficient tissue.

【0007】そこで本発明は、頭蓋顎顔面骨の骨欠損部の補填に使用される骨補填材のうちその内外面に貫通する適数の貫通孔を有するものに、自家骨への取付け用孔を含め複数の取付け用孔を備えた骨補填材固定プレートを取付けるのに好適な取付け具を提供し、もって比較的短時間でその固定プレートを介して骨補填材を自家骨に強固に固定できるようにするとともに、それに好適な固定プレートを提供することをその目的とする。 [0007] The present invention, those having an appropriate number of through-holes penetrating in its inner and outer surfaces of the bone prosthetic material used for filling the bone defect craniomaxillofacial bones, holes for attachment to autogenous bone to provide suitable fittings for attaching the bone prosthetic material fixed plate having a plurality of mounting holes, including the bone filling material can be firmly fixed to the autologous bone through a relatively short period of time the fixing plate has while so, it is an object thereof to provide a suitable fixing plate.

【0008】 [0008]

【課題を解決するための手段】上記の目的を達成するため、本発明に係る請求項1記載の骨補填材固定プレートの取付け具は、頭蓋顎顔面骨の骨欠損部の補填に使用される骨補填材のうちその内外面に貫通する適数の貫通孔を有するものに、自家骨への取付け用孔を含め複数の取付け用孔を備えた骨補填材固定プレートを取付けるのに使用される取付け具であって、前記骨補填材の貫通孔に該骨補填材の内面側から挿入可能に形成されると共にその骨補填材における外面側から突出しないように後端面の外周には前記貫通孔に係止可能の係止部が突設され、 Means for Solving the Problems] To achieve the above object, the fixture of the bone prosthetic material fixation plate of claim 1, wherein according to the present invention is used for filling the bone defect craniomaxillofacial Bone to those having appropriate number of through-holes penetrating in its inner and outer surfaces of the bone prosthetic material, is used to attach the bone prosthetic material fixed plate having a plurality of mounting holes including a mounting hole to autogenous bone a fixture, the through-hole on the outer periphery of the rear end surface so as not to protrude from the outer surface side of the bone filling material while being insertable formed from the inner surface side of the bone filling material into the through hole of the bone filler engaging portion of the locking can be protruded,
しかも先端面にはねじ孔がその軸線を前記後端面に略垂直にして形成されていることを特徴とする。 Moreover screw hole on the front end surface is characterized in that it is formed in the substantially vertical its axis on the rear end face.

【0009】請求項1記載の取付け具においては、これを骨補填材の貫通孔の数用意し、それぞれその先端面から骨補填材の貫通孔に挿入し、外面側に所定の公知の固定プレート(マイクロプレート)をあてがい、その取付け用孔を先端面のねじ孔に対応させてビス等のねじ部材をそのねじ孔にねじ込むとともに骨補填材固定プレートの自家骨への取付け用孔が適切な位置となるように調整する。 [0009] In the fixture according to claim 1, which is the number available in the through hole of the bone prosthetic material, each inserted from the front end surface to the through hole of the bone prosthetic material, a predetermined known fixed plate on the outer surface side Ategai the (microplate), mounting holes suitable location to autologous bone of a bone substitute material fixed plate with screwed the threaded member such that the mounting holes in correspondence with the screw holes of the front end surface bis the screw hole adjusted to be. 以後は要すればそのねじ部材を増締めし、そして、その状態のものを骨欠損部にセットし、各固定プレートを自家骨の表面にあてがい、取付け用孔に対応する自家骨に下孔を穿孔し、その取付け用孔から自家骨にねじ部材をねじ込むことで骨補填材の固定が行われる。 Thereafter retighten the screw member if necessary, and, those that state is set to the bone defect, a respective fixed plate Ategai on the surface of autologous bone, the lower hole in the autogenous bone corresponding to the mounting holes perforated, fixing the bone prosthetic material is performed by screwing the screw member into autogenous bone from its attachment holes.

【0010】なお、骨補填材は、予め骨欠損部に適合するように調整され、内外両面の適所に貫通する適数の貫通孔を有してなるものが使用されるが、その貫通孔は骨補填材の大きさにもよるが一般には4か所程度以上、そして好ましくは等角度(距離)間隔で設けておき、その各箇所において本発明に係る取付け具を用いて固定プレートを取付ける。 [0010] Incidentally, the bone prosthetic material is adjusted to match the pre-bone defect, but made with a suitable number of through-holes penetrating in place of inner and outer surfaces are used, the through holes depending on the size of the bone prosthetic material generally about four or more, and preferably it may be provided at equal angles (distance) intervals, mounting the fixed plate with a fixture according to the present invention at each of its locations.

【0011】このように、本発明にかかる取付け具を用いて固定プレートを介して骨補填材を固定する場合には、自家骨に対する機械加工は、ねじ部材のねじ込みのための下孔を骨面に略垂直に開けておくだけでよく、また、取付け(固定)はねじ部材のねじ込みによるものである。 [0011] Thus, in the case of fixing the bone filling material through a fixed plate with a fixture according to the present invention, machining for autologous bone, the bone surface under the hole for screwing the screw member it is only kept open substantially perpendicular to, and mounted (fixed) is due to the screwing of the screw member. したがって、ナイロン糸による縫合による場合に比べて手術時間の短縮が図られるし、骨補填材の自家骨への取付けもねじの締付けによるから、その取付け強度の向上も図られることになる。 Therefore, to shorten the operation time can be achieved as compared with the case of the suture with a nylon thread, because also attached to the autologous bone of a bone substitute material according to the tightening of the screw, will be achieved also improve the attachment strength.

【0012】上記の目的を達成するため、本発明に係る請求項2記載の骨補填材固定プレートの取付け具は、頭蓋顎顔面骨の骨欠損部の補填に使用される骨補填材のうちその内外面に貫通する適数の貫通孔を有するものに、 [0012] To achieve the above object, the fixture of the bone prosthetic material fixation plate of claim 2, wherein according to the present invention, of which the bone filling material to be used in the filling of bone defects craniomaxillofacial Bone to those having appropriate number of through-holes penetrating the inner and outer surfaces,
自家骨への取付け用孔を含め複数の取付け用孔を備えた骨補填材固定プレートを取付けるのに使用される取付け具であって、基板とその一主面に立設された少なくとも2つの凸部を備えるとともに、該凸部は前記骨補填材の貫通孔に該骨補填材の内面側から挿入可能に形成されると共にその骨補填材における外面側から突出しない高さに形成され、しかも該凸部の先端面にはねじ孔がその軸線を前記基板の一主面に略垂直にして形成されていることを特徴とする。 A fixture used to attach the bone prosthetic material fixed plate having a plurality of mounting holes including a mounting hole to autologous bone, at least two projections that are erected on the substrate and one main surface thereof provided with a section, convex portion is formed at a height that does not protrude from the outer surface side of the bone filling material while being insertable formed from the inner surface side of the bone substitute material in the through hole of the bone substitute material, moreover the characterized in that the tip surface of the projection is formed in the substantially vertical screw holes its axis on one main surface of the substrate.

【0013】請求項2記載の取付け具においては、その凸部を骨補填材の貫通孔にその内面側から挿入し、外面側に、自家骨への取付け用孔を含め複数の取付け用孔を備えた前同様の公知の骨補填材固定プレートをあてがいその取付け用孔を凸部の先端面のねじ孔に対応させてビス等のねじ部材をねじ込む。 [0013] In fitting the second aspect, the convex portion is inserted from the inner surface side in the through hole of the bone prosthetic material, the outer surface side, a plurality of mounting holes including a mounting hole to autogenous bone the mounting holes Ategai similar known bone prosthetic material fixed plate before having to correspond to the screw holes of the front end surface of the projection screwing screw members such as bis. そして、請求項1記載の取付け具と同様、骨補填材固定プレートの自家骨への取付け用孔が適切な位置となるように調整することで、骨補填材に固定プレートを同様に固定でき、その後も同様にして自家骨に固定すればよい。 Then, similarly to the fixture of claim 1, wherein, by adjusting so that the mounting holes in the autologous bone of a bone substitute material fixed plate becomes the proper position, can be fixed similarly fixed plate to the bone prosthetic material, then also in the same manner as it may be fixed to autologous bone. なお、この手段では凸部が2以上あることから、そのねじ孔へのねじ込み時には互いに他方が回り止め作用をすることから、締付けの信頼性が高い。 Incidentally, since this means that the convex portion is 2 or more, since the mutually other detent action when screwed into the screw hole, reliable tightening. なお、請求項1又は2記載の両取付け具とも、チタン又はチタン合金等の生体適合性を有する金属製とするとよい。 Note that both fitting according to claim 1 or 2, may be a metal having biocompatibility such as titanium or titanium alloy.

【0014】そして、請求項2又は3記載の取付け具においては前記公知の固定プレートに代えて、次のような固定プレートを用いるとよい。 [0014] In the claims 2 or 3, wherein the fitting in place of the known fastening plate may be performed using fixed plates as follows. すなわち、これらの骨補填材固定プレートの取付け具の凸部のねじ孔に対応する配置で、自家骨への取付け用孔を含め複数の取付け用孔を備えた骨補填材固定プレートであって、前記骨補填材固定プレートの取付け具の凸部が骨補填材の各貫通孔に挿入されてその基板が骨補填材の一方の面にあてがわれた際に骨補填材のその面の曲面状態によって発生する前記凸部の先端面におけるねじ孔相互間の間隔の変動を許容してねじ部材を該各ねじ孔にねじ込み可能に、各取付け用孔のうちの適数のものを長孔に形成したことを特徴とするものである。 That is, in the arrangement corresponding to the screw hole of the convex portion of the fixture of these bone prosthetic material fixed plate, a bone prosthetic material fixed plate having a plurality of mounting holes including a mounting hole to autogenous bone, curved state of the surface of the bone filling material when the projections of the fitting of the bone substitute material fixed plate the substrate is an assigned on one surface of the bone prosthetic material is inserted into each through-hole of the bone prosthetic material forming a screw member to permit variation of the distance between the threaded holes mutually threadably into respective screw holes, the elongated holes as the appropriate number of the mounting holes in the front end surface of the convex portion caused by it is characterized in that the.

【0015】上記取付け具の凸部の先端面におけるねじ孔相互間の間隔は、取付け具の凸部が骨補填材の各貫通孔に挿入され、その基板が骨補填材の一方の面にあてがわれた際に骨補填材のその面の曲面状態によって微妙に変動する。 [0015] spacing between the screw holes each other in the tip surface of the projection of the fitting convex portion of the fixture is inserted into the through holes of the bone prosthetic material, the substrate is addressed to one surface of the bone prosthetic material It varies slightly depending curved state of the surface of the bone filling material when is cracking. すなわち、骨補填材の面に基板があてがわれると、その曲面状態の曲率半径が小さくなるほど、その間隔は凸部の先端面側が基端面側(基板側)より大きくなる。 That is, when the substrate to the surface of the bone prosthetic material is Ategawa, as the radius of curvature of the curved surface state decreases, the interval is front-end surface side of the convex portion is larger than the proximal end face side (the substrate side). したがって、このような場合、単に円形等の取付け用孔が設けられている固定プレートでは、ねじ部材を挿入できなくなってしまうといった不具合を招くことがある。 Accordingly, in this case, just the fixed plate is provided with mounting holes such as a circle, may lead to problems such as making it impossible insert the screw member. しかし、請求項4記載に係る固定プレートは、この際に発生するねじ孔相互間の間隔の変動を許容してねじ部材を該凸部の各ねじ孔にねじ込み可能に、各取付け用孔のうちの適数のものを長孔に形成したものであるから、その様な不具合の回避に有効である。 However, the fixed plate according to claim 4 wherein the possible screwing the screw member into the screw holes of the convex portion to permit variation of the distance between the threaded holes mutually occurring during this, among the mounting holes since those of a suitable number is obtained by forming the long hole, it is effective to avoid such inconvenience. なお、この骨補填材固定プレートも、チタン又はチタン合金等の生体適合性を有する金属製とするのが好ましい。 Incidentally, the bone prosthetic material fixation plate also preferably a metal having biocompatibility such as titanium or titanium alloy.

【0016】 [0016]

【発明の実施の形態】次に本発明に係る請求項1記載の取付け具を具体化した実施の形態について、図1及び図2を参照して詳細に説明する。 For PREFERRED EMBODIMENTS Next embodying embodiments of the fixture of claim 1, wherein according to the present invention will be described in detail with reference to FIGS. ただし、図中Cは、患者の頭蓋骨(以下、自家骨ともいう)Zの骨欠損部(患部)に補填されるアパタイト焼結体等のセラミック製骨補填材であって、骨欠損部に略隙間なくセットされるように、元の自家骨と同様にやや球面状に形成されており、詳しくは図示しないがその適所(例えば、4か所) However, figure C is the patient's skull (hereinafter also referred to as autologous bone) bone defects of Z a ceramic bone substitute material of apatite sintered body or the like is compensated in the (affected area), substantially in the bone defect as no gap set is formed somewhat similarly to the original autologous bone spherical, although details are not shown the place (e.g., four)
に内外面に貫通する所定の直径の円形の貫通孔Kが形成されている。 Circular through-hole K of predetermined diameter extending through the inner and outer surfaces are formed on.

【0017】図1及び図2中1は本例の取付け具であり、純チタン製の円柱体からなる取付け具本体2と、その下端面3の外周に、貫通孔Kに係止可能の係止部として一体的、同芯状で突設された円形薄板からなる係止フランジ4とからなっている。 [0017] FIGS. 1 and 2 in 1 is a fixture of the present embodiment, the fixture main body 2 made of pure titanium cylindrical body, the outer periphery of the lower end surface 3, lockable engagement in the through-hole K consists integrally, a circular thin plate projecting in the coaxially engaging flange 4 which as a stop. ただし、本体2の外径は本例では約3mmとされ、係止フランジ4の外径は本例では約6mmとされている。 However, the outer diameter of the body 2 in this embodiment is approximately 3 mm, the outer diameter of the stop flange 4 in this embodiment is approximately 6 mm. そして、本体2の上端面5の中央にはその円柱体の軸線方向に所定深さをもつねじ孔(本例では、M1.4)6が形成されている。 Then, the center of the upper end face 5 of the body 2 (in this example, M1.4) screw hole having a predetermined depth in the axial direction of the cylindrical body 6 is formed. なお、本体2の外径は、骨補填材Cに設けられた貫通孔Kよりやや小さめとされ、また、その高さは、骨補填材Cの貫通孔Kの深さすなわち骨補填材Cの厚さよりも小さく設定されている。 The outer diameter of the body 2 is slightly smaller than the through-hole K provided in the bone prosthetic material C, also the height of the penetrating opening K of the bone prosthetic material C depth or the bone prosthetic material C It is set smaller than the thickness. また、本体2はその下端面3が円形ボス7 Moreover, the body 2 has its lower end surface 3 circular bosses 7
状に形成され、これに環状板が嵌合されその嵌合の境界Mをカシメることにより係止フランジ4が形成されている。 Jo the formed locking flange 4 is formed by caulking the boundary M of the fitting is fitted an annular plate thereto. もっとも、本体2と係止フランジ4を一体で製作してもよい。 However, the main body 2 and the locking flange 4 may be made in one piece.

【0018】本例の取付け具1は各貫通孔Kにおいて同様に使用されるが、次のようである。 The fixture 1 of the present embodiment is used as well in the through holes K, is as follows. まず、図1,2に示したように、本体2を先端面5側から骨補填材Cの貫通孔Kに内側から嵌入する。 First, as shown in FIGS. 1 and 2, fitted from inside the main body 2 from the distal end surface 5 side into the through-hole K of the bone prosthetic material C. そして、公知の固定プレート21の取付け用孔22を取付け具1のねじ孔6に自家骨Zへの取付けを考慮して合わせ、かつ純チタン製などのねじ部材23を螺着(仮締め)して係止フランジ4と固定プレート21とで骨補填材Cを挟む。 The combined taking into account the attachment of the autologous bone Z into the screw hole 6 of the fixture 1 a mounting hole 22 of the known fixing plate 21, and a screw member 23 such as made of pure titanium screwed (temporarily tightened) sandwiching the bone prosthetic material C between the stop flange 4 and the fixed plate 21 Te. これにより、 As a result,
固定プレート21は骨補填材Cに強固に固定される。 The fixed plate 21 is firmly secured to the bone graft substitute C. なお、図示の公知の固定プレート21は、略一定幅の薄板からなり、真っ直ぐな状態をなすとともにその一端部(図1右上)寄り部位に自家骨Zの表面に取付けるため、所定のピッチでねじ部材を挿入し得る取付け用孔(本例では内径約1.3mm)22bを本例では2か所備えている。 Note that known fixing plate 21 shown is made of a thin plate having a substantially constant width, for attachment to the surface of the autologous bone Z one end with forming a straight state (Figure 1 top right) side portion, the screw at a predetermined pitch (in this example an inner diameter of about 1.3 mm) mounting holes capable of inserting the member includes two places and 22b in this example.

【0019】かくては、この状態のものを骨欠損部にセットし固定プレート21における自家骨Zへの取付け用孔22bの位置にねじ部材23の下孔を骨面に略垂直に穿孔する。 [0019] Te is thus, to drill substantially perpendicular to the bone surface under the hole of the screw member 23 to those in this state the position of the mounting hole 22b to autologous bone Z in the fixed plate 21 is set in a bone defect. そして、その取付け用孔22bからねじ部材23を自家骨Zの表面にねじ込み固定すれば、骨補填材Cは固定プレート21を介して自家骨Zにしっかりと固定される。 Then, if the screwing the mounting hole 22b of the screw member 23 on the surface of autologous bone fixed Z, the bone substitute material C is firmly fixed to the autologous bone Z through the fixed plate 21. なお、本体2の係止フランジ4上の高さは、 The height of the stop flange 4 of the body 2,
骨欠損部に補填される骨補填材(人の頭蓋顎顔面骨)C Bone substitute material is compensated in the bone defect (craniomaxillofacial bones human) C
の厚さ(3〜8mm)に応じて、それより小さめで適宜の高さにすればよい。 Depending on the thickness of the (3 to 8 mm), may be set to an appropriate height is smaller than that.

【0020】また本例では、本体2に設けたねじ孔6 [0020] In this embodiment, screw holes 6 provided in the main body 2
は、その奥所(先端)が閉塞されたブラインドナットの形を成しているため、誤ってねじ長さの長いねじ部材2 , Therefore the Okusho (tip) is the form of a blind nut which is closed, incorrectly long screw lengths screw member 2
3を用いてもその先端で硬膜等を傷つけないように形成されている。 3 with is formed so as not to damage the dura and the like in its tip. なお、上記においては取付け具1の本体2 In the above body 2 of the fixture 1
を円柱形状とし係止フランジ4を円板状としたが、これに限定されるものではなく、図3に示した取付け具1のように、本体2を四角柱等の角柱とし、係止フランジ4 The Although the locking flanges 4 and cylindrical shape and a disk-shaped, it is not limited thereto, as the fixture 1 shown in FIG. 3, the main body 2 as a prismatic such as a quadrangular prism, stop flange 4
を円板形状(又は角板形状)としておいてもよい。 It may have been a disc shape (or square plate shape) a. 本体2を角柱状にしておき、骨補填材にも同様の横断面形状の貫通孔を穿孔しておくことで、固定プレートの取付け時にねじ部材を本体2のねじ孔6にねじ込む際、空回りする危険がなくなる。 Leave the body 2 to the prismatic, by leaving perforating a through hole having the same cross-sectional shape in the bone substitute material, when screwing the screw member into the screw hole 6 of the body 2 when the mounting of the fixed plate, idles danger is eliminated. また、円柱形状でもねじ孔がその円の中心から偏在して設けられている場合には、空回りする危険を低減できる。 Further, if the screw hole in a cylindrical shape is provided eccentrically from the center of the circle can reduce the risk of idling. この他、本体はその上端面形状及び横断面形状が楕円の楕円柱状としてもよいし、図4 In addition, the body to the upper end surface shape and cross-sectional shape may be an elliptical cylindrical ellipse, FIG. 4
に示した取付け具1のように、本体2をその上端面5の形状及び横断面形状が円の一部を切欠いた割円形をなすような柱形状に形成してもよい。 As in the fixture 1 shown, may be formed body 2 a pillar shape as a shape and a split circular cross-sectional shape is cut away a part of a circle of its upper end face 5. このようなものでも骨補填材に同様の横断面形状の貫通孔を穿孔しておくことで、固定プレートの取付け時にねじ部材を本体のねじ孔にねじ込む際、空回りする危険がなくなる。 Such intended also to keep drilling the through-hole of the same cross-sectional shape in the bone substitute material, when screwing the screw member during the mounting of the fixing plate to the screw hole of the body, the risk is eliminated that idles.

【0021】さらに、図5に示した取付け具1のように、本体2の上端面5を冠歯車状に凹凸に形成しておき、固定プレートの取付け用孔の周囲の下面をその固定の際に前記凹凸に嵌合するように凹凸に形成しておいても空回りは防止できる。 Furthermore, as the fixture 1 shown in FIG. 5, previously formed on the uneven upper end face 5 of the body 2 to the crown wheel shape, during its fixing to the lower surface of the periphery of the mounting hole of the fixing plate the idle be previously formed on the concavo-convex to fit into unevenness can be prevented. また、前記では1取付け具に1 Further, one fitting in said one
固定プレートを用いる場合で説明したが、図6に示したようなT字形の固定プレート31を用い、その先端部の両端の取付け用孔22,22から、各取付け具1,1のねじ孔6,6にそれぞれにねじ部材23をねじ込み、他の取付け用孔22bを介して自家骨に固定してもよい。 It has been described in the case of using the fixing plates, using a fixed plate 31 of T-shaped as shown in FIG. 6, the mounting holes 22, 22 at both ends of the tip portion, the screw hole of the fixture 1,1 6 , screwing the screw member 23 in each of 6, it may be fixed to autologous bone through the other mounting holes 22b.

【0022】次に請求項3に記載の本発明を具体化した実施の形態について、図7及び図8を参照して詳細に説明する。 [0022] The invention will now for embodying an embodiment as claimed in claim 3, will be described in detail with reference to FIGS. ただし、前例と共通する部位については、適宜その説明を省略する。 However, the portions common to the previous and description thereof will not be repeated. 図7,図8中、41は本例の取付け具であって、帯板状のチタン製薄板からなる基板42 7, in FIG. 8, 41 is a fitting of the present embodiment, a substrate 42 made of strip-shaped titanium sheet
とその両端部に立設された円柱状の凸部43,43とからなっている。 And it consists erected a columnar protrusion 43 Metropolitan at both ends thereof. 基板42は、指先や手術用のプライヤなどで簡易に折り曲げ加工(塑性変形)ができるよう略帯板状に形成され(本例では、長さ約23mm、幅約8m Substrate 42 is a is formed in a substantially strip-shaped (in this example to allow bending easily by fingertip or surgery pliers (plastic deformation), about 23mm in length, a width of about 8m
m、厚さ約0.5mm)、その両端部44,44は図7、図8に示したように平面視、円弧状に膨出形成されている。 m, about 0.5 mm) thick, both ends 44 and 44 FIG. 7, a plan view as shown in FIG. 8, are bulges formed in an arc shape. なお、基板42の端部44の円弧の半径は、骨補填材Cの貫通孔Kの開口の周縁面Ksに係止する大きさに設定されている。 Incidentally, the radius of the arc end 44 of the substrate 42 is set to a size to engage the peripheral surface Ks of the opening of the penetrating opening K of the bone prosthetic material C.

【0023】一方、凸部43の上端面45の中央には所定深さをもつねじ孔(本例では、M1.4)46が形成されている。 On the other hand, (in this example, M1.4) screw holes with the center of the upper end surface 45 of the convex portion 43 a predetermined depth 46 is formed. ただし、ねじ孔46の軸線は基板42の主面と垂直方向とされ、その凸部43の外径は、骨補填材Cに設けられた貫通孔Kの内径よりも小さめとされ、また、その高さは、骨補填材Cの貫通孔Kの深さすなわち骨補填材の厚さ(3〜10mm)よりも小さく設定されている。 However, the axis of the threaded hole 46 is a main surface perpendicular direction of the substrate 42, the outer diameter of the convex portion 43 is a smaller than the inner diameter of the through hole K provided in the bone prosthetic material C, also the the height is set to be smaller than the thickness of the depth or bone substitute material of the penetrating opening K of the bone prosthetic material C (3 to 10 mm). なお、本例ではこの凸部43もチタン製とされ、その下端面に下向きに突出形成された円形ボス47 Incidentally, the convex portion 43 in this example is also made of titanium, a circular boss 47 formed to project downward on its lower end face
を基板42の両端44,44の円弧の半径の中心に設けられた円形孔48に嵌合され、その境界Mをカシメることにより固着されている。 The fitted in a circular hole 48 provided in the arc of a radius of the center of both ends 44, 44 of the substrate 42 is fixed by caulking the boundary M.

【0024】しかして、骨欠損部に補填すべき骨補填材Cに、所定のピッチで貫通孔K,Kをあけ、本例における取付け具41の凸部43を骨補填材Cの一方の面(図8下面)の側からそれぞれの貫通孔Kに挿入する。 [0024] Thus, the bone prosthetic material C to be compensated to the bone defect, drilled holes K, K at a predetermined pitch, the projecting portion 43 of the fixture 41 in this embodiment one surface of the bone prosthetic material C inserted into respective through-hole K from the side (Figure 8 bottom surface). そして、要すればその基板42を骨補填材Cの下面(当接面)に押し付けることで曲げてあてがう。 Then, the substrate 42 optionally Ategau bent by pressing the lower surface of the bone prosthetic material C (abutment surface). そして、骨補填材Cの他方の面(図8上面)側から、各凸部43,4 Then, from the other surface (Figure 8 upper surface) side of the bone prosthetic material C, the convex portions 43,4
3に、自家骨Zへの取付け用孔22bを含め複数の取付け用孔を備えた従来公知の例えば平面視T字形をなす骨補填材固定プレート(図6参照)31をあてがい、ねじ部材23,23をその取付け用孔22を通してねじ孔4 3, Ategai bone filling material fixation plate (see FIG. 6) 31 forming the conventional example viewed from T-shape having a plurality of mounting holes, including the mounting hole 22b to autologous bone Z, screw member 23, screw holes 4 23 through the mounting hole 22
6にねじ込む。 Screwed to 6. かくして、固定プレート31は骨補填材Cに強固に固定されるが、以後は前記と同様にして手術に用いればよい。 Thus, although the fixing plate 31 is firmly fixed to the bone prosthetic material C, thereafter it may be used to surgery in the same manner as above. なお、本例取付け具41は、凸部43 The present embodiment fixture 41, the convex portion 43
が2か所あることから、ねじ部材23のねじ込み時に空転することがないので確実に締め付けられる。 Since There are two places, it is securely tightened since no idling during screwing of the screw member 23.

【0025】図7及び図8に用いた固定プレート31については、図9に示したように、その取付け用孔のうち凸部43に固定されるものの一方を円孔52とし、他方を両取付け用孔を結ぶ方向に長径をなす長孔53に形成したものを用いれば次の効果がある。 [0025] For FIGS. 7 and the fixed plate 31 used in FIG. 8, as shown in FIG. 9, and one of those is fixed to the projection 43 of the mounting hole and the circular hole 52, both attached to the other by using the direction connecting the use holes those formed in the elongated hole 53 forming the major axis has the following advantages. すなわち、骨補填材Cの曲面状態(半径R)によって取付け具41の凸部43,43のねじ孔46,46相互間の間隔は、その先端面45側において基端側(基板面側)における間隔より大きくなるが、このように長孔としておけば、その差を許容ないし吸収してねじ部材をねじ込むことができる。 That is, the spacing between the screw holes 46, 46 each other of the projections 43, 43 of the fixture 41 by the curved state of the bone substitute material C (radius R) is at the base end side (the substrate side) at its distal end face 45 side greater than the distance, but if in this way the elongated hole, can be screwed a threaded member and permitted to absorb the difference. このように、固定プレートについては、骨補填材の曲面状態によつて発生する凸部の先端面におけるねじ孔の間隔の変動(増大)を許容してそのねじ孔にねじ部材の挿入を可能とするように、取付け用孔のうちの適数のものを長孔に形成しておくとよい。 Thus, for a fixed plate, and allow insertion of tolerance to the screw member in the screw hole varying (increasing) the interval of the screw holes in the front end surface of the convex portion by connexion occur curved state of the bone prosthetic material as to, those suitable number of mounting holes may want to form a long hole. なお、長孔の長手方向は、ねじ孔の間隔の変動を許容してそのねじ孔にねじ部材の挿入を可能とするように、取付け用孔の配置や数に応じて設定すればよい。 Incidentally, the longitudinal direction of the elongated hole so as to allow insertion of the screw member in the screw hole to allow the variation of the spacing of the screw holes may be set according to the arrangement and number of the mounting holes.

【0026】当然のことながら、取付け具41の凸部4 [0026] It will be appreciated that, the convex portion 4 of the fixture 41
3のねじ孔46,46相互間の間隔がその先端面45側において基端側(基板面側)における間隔と略同じであり、差を吸収する必要がないような場合には、取付け用孔が円形等の従来公知の平面視T字形或いは、直線状等の各種形状の固定プレートをそれぞれの凸部の数分用いればよい。 The spacing between the third screw hole 46, 46 mutually are substantially the same as the spacing in the base end side (substrate side) is at its distal end surface 45 side, in case that there is no need to absorb the difference, the mounting hole There known a plan view T-shaped, or the like round, the fixed plate of various shapes of the linear or the like may be used a few minutes of each protrusion.

【0027】なお、凸部43の高さは、骨補填材Cの厚さに応じてその厚さを超えない範囲で、その厚さより小さめで適宜に設計すればよい。 [0027] The height of the convex portion 43, under the condition not exceeding the thickness according to the thickness of the bone prosthetic material C, may be suitably designed in smaller than its thickness. また、凸部43は円柱形状に限定されるものではない。 Further, the convex portion 43 is not limited to the cylindrical shape. 当然のことながら凸部4 Convex part a matter of course 4
3,43相互間の間隔は各貫通孔Kに挿入可能に適宜に設計すればよい。 3, 43 spacing therebetween may be insertably properly designed the respective through-hole K.

【0028】さらに、取付け具の基板の平面形状や大きさ或いは凸部の数や位置などは、頭蓋顎顔面骨の骨欠損部さらには骨補填材及びその貫通孔に応じて適宜に設定すればよい。 Furthermore, the, number and position of the planar shape and size of the substrate of the fixture or protrusion, more bone defect craniomaxillofacial bones be set appropriately in accordance with a bone substitute material and the through hole good. すなわち請求項2に記載の取付け具の平面形状は、図示はしないがL字形、T字形、H字形など様々な形態のものとして具体化できるし、四角や三角などの適宜の平板(平面)形状とすることもできる。 That planar shape of the fixture according to claim 2, although not shown L-shaped, T-shaped, to be embodied as a variety of forms such as H-shape, a suitable flat (planar) shape such as a square or triangular It can also be a. もちろん、そのいずれにおいても、ねじ孔を備えた凸部は各部位の端部(又は角部)もしくは端部(又は角部)寄り部位とするだけでなく、中間などの適所に形成してもよい。 Of course, in any of them also, the convex portion having a screw hole is not only an end portion (or corner) or end (or corner) side portion of each part, it is formed in place such as an intermediate good.

【0029】取付け具及び固定プレートの材質は、チタン又はチタン合金が、生体親和性、高強度、耐腐食性、 The material of the fixture and the fixed plate, titanium or titanium alloy, biocompatible, high strength, corrosion resistance,
非毒性、容易な曲げ加工性などより好ましい材料といえるが、本発明においては、これに限定されるものではない。 Non-toxic, although it can be said that the preferred material from such easy bending workability, the invention is not limited thereto. ただし、取付け具の基板や固定プレートは、形状や材質にもよるが強度が確保されるかぎりなるべく薄く、 However, the substrate and the fixed plate of the fixture, as thin as possible as long as it depends on the shape and material strength is secured,
そして塑性変形により曲げやすいものとするのが好ましい。 And preferably it shall bendy by plastic deformation. また、本例では、骨補填材Cが新生骨との結合性に優れるアパタイトの場合で説明したが、生体適合性や十分な強度を有し、補填材として適する材質であれば適宜の材料のものを用いることができる。 Further, in the present example, the bone prosthetic material C is has been described in the case of apatite having excellent binding properties with new bone, biocompatible and sufficient strength, the suitable material as long as the material suitable as filling material it is possible to use things. すなわち、プラスチックや金属の骨補填材でもまったく同様に適用できる。 That is, it just as applicable in bone filling material of plastic or metal.

【0030】 [0030]

【発明の効果】本発明に係る請求項1記載の骨補填材固定プレートの取付け具によれば、骨補填材のうち、その内外面に貫通する適数の貫通孔を有するものに、自家骨への取付け用孔を含め複数の取付け用孔を備えた骨補填材固定プレートを強固に取付けることができる。 According to the fixture of the bone prosthetic material fixation plate according to the present invention according to claim 1, wherein, according to the present invention, among the bone prosthetic material, the one having the appropriate number of through-holes penetrating in its inner and outer surfaces, autogenous bone a plurality of bone filling material fixedly plate with mounting holes including a mounting hole to thereby be attached firmly. したがって、以後、その固定プレートの自家骨への取付け用孔を通してねじ部材を自家骨にねじ込むことで骨補填材を自家骨に比較的短時間で強固に固定できる。 Therefore, hereinafter, the bone prosthetic material can be firmly fixed in a relatively short time autologous bone by screwing the screw member through the mounting hole in the to autologous bone fixation plate to the autologous bone.

【0031】本発明に係る請求項2記載の骨補填材固定プレートの取付け具によれば、請求項1記載の取付け具の効果に加え、その取付け時においては凸部が2以上あることから、そのねじ孔へのねじ込み時には互いに他方が回り止め作用をなし、締付けの信頼性が高い。 According to the fixture of the bone prosthetic material fixation plate of claim 2, wherein according to the present invention, since in addition to the effects of the fixture of claim 1, wherein in the attachment the time have a convex portion is 2 or more, None mutually the other detent action when screwed into the screw hole, reliable tightening.

【0032】本発明に係る請求項4記載の骨補填材固定プレートによれば、骨補填材の曲面状態によって取付け具の凸部の先端面におけるねじ孔の間隔に変動があっても、取付け用孔を長孔とした分、その変動を許容して固定できる。 According to the bone filling material fixation plate according to claim 4, wherein according to the present invention, even if there is variation in the spacing of the screw holes in the end surface of the convex portion of the fixture by the curved state of the bone prosthetic material, for mounting amount that the hole has a long hole, it can be fixed to permit the change.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】請求項1記載に係る取付け具の実施形態例の斜視図、及びこれを用いて骨補填材固定プレートを骨補填材に固定する状態の分解斜視図。 1 is a perspective view of an example embodiment of the fixture according to claim 1, wherein, and exploded perspective view showing a state of fixing the bone filling material of the bone prosthetic material fixation plate using the same.

【図2】図1の取付け具を用いて骨補填材固定プレートを骨補填材に固定している状態の部分破断面図。 Figure 2 is a partial broken side view of a state that secure the bone filling material of the bone filling material fixedly plate with fixture of FIG.

【図3】図1の取付け具の別例の斜視図。 [3] Another example perspective view of the fixture of FIG.

【図4】図1の取付け具の別例の斜視図。 [4] Another example perspective view of the fixture of FIG.

【図5】図1の取付け具の別例の斜視図。 [5] Another example perspective view of the fixture of FIG.

【図6】図1の取付け具2個を用いて1つの骨補填材固定プレートを骨補填材に固定する状態の分解斜視図。 Figure 6 is an exploded perspective view showing a state in which one of the bone substitute material fixed plate with two tool mounting secured to the bone prosthetic material of Fig.

【図7】請求項2記載に係る取付け具の実施形態例の斜視図、及びこれを用いて骨補填材固定プレートを骨補填材に固定する状態の説明用斜視図。 Figure 7 is a perspective view of an example embodiment of the fixture according to claim 2, wherein, and explanatory perspective view of a state of fixing the bone filling material of the bone prosthetic material fixation plate using the same.

【図8】図7の取付け具を用いて骨補填材固定プレートを骨補填材に固定している状態の部分破断面図。 8 partially cutaway sectional view of a state that secure the bone filling material of the bone filling material fixedly plate with fixture Fig.

【図9】請求項4記載に係る骨補填材固定プレートの実施形態例の斜視図。 Figure 9 is a perspective view of an embodiment of the bone substitute material fixation plate according to claim 4, wherein.

【図10】従来のセラミック骨補填材の固定を説明する部分断面図。 Figure 10 is a partial cross-sectional view illustrating the fixing of a conventional ceramic bone filler.

【符号の説明】 DESCRIPTION OF SYMBOLS

1,41 骨補填材固定プレートの取付け具 2 取付け具本体 3 後端面 4 係止フランジ(係止部) 5 先端面 6,46 ねじ孔 21,31 骨補填材固定プレート 22,22b,52 取付け用孔 23 ねじ部材 42 基板 43 凸部 45 凸部の先端面 53 長孔 C 骨補填材 K 貫通孔 Z 自家骨 1,41 fixture 2 fixture body 3 the rear end face 4 stop flange (engaging portion) of the bone prosthetic material fixed plate 5 the distal end surface 6 and 46 screw holes 21, 31 bone prosthetic material fixed plate 22, 22b, for 52 mounted hole 23 threaded member 42 substrate 43 distal end face 53 length of protrusion 45 protrusion hole C bone filler K through hole Z autogenous bone

Claims (5)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 頭蓋顎顔面骨の骨欠損部の補填に使用される骨補填材のうちその内外面に貫通する適数の貫通孔を有するものに、自家骨への取付け用孔を含め複数の取付け用孔を備えた骨補填材固定プレートを取付けるのに使用される取付け具であって、前記骨補填材の貫通孔に該骨補填材の内面側から挿入可能に形成されると共にその骨補填材における外面側から突出しないように後端面の外周には前記貫通孔に係止可能の係止部が突設され、 To 1. A having a suitable number of through holes penetrating in its inner and outer surfaces of the bone prosthetic material used for filling the bone defect craniomaxillofacial bones, a plurality including a mounting hole to autogenous bone their bones with a fixture that is used to attach the bone prosthetic material fixed plate having a mounting hole, is insertable formed from the inner surface side of the bone filling material into the through hole of the bone filling material engaging portion of the possible locking in the through-hole on the outer periphery of the rear end surface so as not to protrude from the outer surface side is projected in the filling material,
    しかも先端面にはねじ孔がその軸線を前記後端面に略垂直にして形成されていることを特徴とする、骨補填材固定プレートの取付け具。 Moreover, characterized in that the tip face formed by a threaded hole whose axis substantially perpendicular to said rear face, fitting of the bone substitute material fixed plate.
  2. 【請求項2】 頭蓋顎顔面骨の骨欠損部の補填に使用される骨補填材のうちその内外面に貫通する適数の貫通孔を有するものに、自家骨への取付け用孔を含め複数の取付け用孔を備えた骨補填材固定プレートを取付けるのに使用される取付け具であって、基板とその一主面に立設された少なくとも2つの凸部を備えるとともに、該凸部は前記骨補填材の貫通孔に該骨補填材の内面側から挿入可能に形成されると共にその骨補填材における外面側から突出しない高さに形成され、しかも該凸部の先端面にはねじ孔がその軸線を前記基板の一主面に略垂直にして形成されていることを特徴とする、骨補填材固定プレートの取付け具。 To 2. A having a suitable number of through holes penetrating in its inner and outer surfaces of the bone prosthetic material used for filling the bone defect craniomaxillofacial bones, a plurality including a mounting hole to autogenous bone a fixture used to attach the bone prosthetic material fixed plate having a hole mounting, provided with a least two protrusions standing on the substrate and one main surface thereof, the convex portion and the It is formed to a height that does not protrude from the outer surface side of the bone filling material while being insertable formed from the inner surface side of the bone substitute material in the through hole of the bone prosthetic material, moreover the screw hole on the tip face of the convex portion characterized in that it is formed in the substantially vertical its axis on one main surface of the substrate, the fixture of the bone prosthetic material fixed plate.
  3. 【請求項3】 チタン又はチタン合金等の生体適合性を有する金属からなることを特徴とする請求項1又は2記載の骨補填材固定プレートの取付け具。 3. A fixture of the bone prosthetic material fixation plate of claim 1, wherein in that it consists of a biocompatible metal such as titanium or titanium alloy.
  4. 【請求項4】 請求項2又は3記載の骨補填材固定プレートの取付け具の凸部のねじ孔に対応する配置で、自家骨への取付け用孔を含め複数の取付け用孔を備えた骨補填材固定プレートであって、前記骨補填材固定プレートの取付け具の凸部が骨補填材の各貫通孔に挿入されてその基板が骨補填材の一方の面にあてがわれた際に骨補填材のその面の曲面状態によって発生する前記凸部の先端面におけるねじ孔相互間の間隔の変動を許容してねじ部材を該各ねじ孔にねじ込み可能に、各取付け用孔のうちの適数のものを長孔に形成したことを特徴とする骨補填材固定プレート。 In 4. configuration corresponding to the screw hole of the protrusion of the fixture according to claim 2 or 3 bone prosthetic material fixation plate according, comprising a plurality of mounting holes including a mounting hole to autologous bone bone a filling material fixed plate, the bone when the convex portion of the fixture of the bone substitute material fixed plate the substrate is an assigned on one surface of the bone prosthetic material is inserted into each through-hole of the bone prosthetic material by allowing the variation of the spacing between the screw holes each other in the tip face of the convex portion caused by the curved state of the surface of the prosthetic material to be screwed a threaded member into respective screw holes, suitable for among the mounting holes bone prosthetic material fixed plate, characterized in that the formation of the one having the long hole.
  5. 【請求項5】 チタン又はチタン合金等の生体適合性を有する金属からなることを特徴とする請求項4記載の骨補填材固定プレート。 5. A titanium or bone substitute material fixation plate according to claim 4, characterized in that it consists of a biocompatible metal such as titanium alloy.
JP8298152A 1996-10-21 1996-10-21 Fitting tool for fixing plate for bone prosthesis material and fixing plate for bone prosthesis material Pending JPH10118096A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8298152A JPH10118096A (en) 1996-10-21 1996-10-21 Fitting tool for fixing plate for bone prosthesis material and fixing plate for bone prosthesis material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8298152A JPH10118096A (en) 1996-10-21 1996-10-21 Fitting tool for fixing plate for bone prosthesis material and fixing plate for bone prosthesis material

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Publication Number Publication Date
JPH10118096A true JPH10118096A (en) 1998-05-12

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010035921A (en) * 2008-08-07 2010-02-18 Piolax Medical Device:Kk Filling device for biological bone
JP2010194076A (en) * 2009-02-25 2010-09-09 Gunze Ltd Processing tool for osteosynthesis plate
JP2010213841A (en) * 2009-03-16 2010-09-30 Gunze Ltd Processing tool for bone plate
JP2011217768A (en) * 2010-04-02 2011-11-04 Hoya Corp Fixing member, and fixing member set
US9168075B2 (en) 2004-01-26 2015-10-27 DePuy Synthes Products, Inc. Variable angle locked bone fixation system
JP6082501B1 (en) * 2016-02-08 2017-02-15 株式会社コバヤシ精密工業 Bone plate and bone plate system
US10231768B2 (en) 2003-05-30 2019-03-19 DePuy Synthes Products, Inc. Methods for implanting bone plates
US10335211B2 (en) 2004-01-26 2019-07-02 DePuy Synthes Products, Inc. Highly-versatile variable-angle bone plate system
US10342586B2 (en) 2003-08-26 2019-07-09 DePuy Synthes Products, Inc. Bone plate

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10231768B2 (en) 2003-05-30 2019-03-19 DePuy Synthes Products, Inc. Methods for implanting bone plates
US10342586B2 (en) 2003-08-26 2019-07-09 DePuy Synthes Products, Inc. Bone plate
US10335211B2 (en) 2004-01-26 2019-07-02 DePuy Synthes Products, Inc. Highly-versatile variable-angle bone plate system
US9168075B2 (en) 2004-01-26 2015-10-27 DePuy Synthes Products, Inc. Variable angle locked bone fixation system
JP2010035921A (en) * 2008-08-07 2010-02-18 Piolax Medical Device:Kk Filling device for biological bone
JP2010194076A (en) * 2009-02-25 2010-09-09 Gunze Ltd Processing tool for osteosynthesis plate
JP2010213841A (en) * 2009-03-16 2010-09-30 Gunze Ltd Processing tool for bone plate
JP2011217768A (en) * 2010-04-02 2011-11-04 Hoya Corp Fixing member, and fixing member set
JP6082501B1 (en) * 2016-02-08 2017-02-15 株式会社コバヤシ精密工業 Bone plate and bone plate system
WO2017138073A1 (en) * 2016-02-08 2017-08-17 株式会社コバヤシ精密工業 Bone plate and bone plate system

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