JP6757248B2 - Fracture treatment equipment - Google Patents

Fracture treatment equipment Download PDF

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JP6757248B2
JP6757248B2 JP2016517944A JP2016517944A JP6757248B2 JP 6757248 B2 JP6757248 B2 JP 6757248B2 JP 2016517944 A JP2016517944 A JP 2016517944A JP 2016517944 A JP2016517944 A JP 2016517944A JP 6757248 B2 JP6757248 B2 JP 6757248B2
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fracture treatment
outer edge
fracture
communication portion
communication
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JPWO2015170746A1 (en
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功一 渡部
功一 渡部
陽一郎 森久
陽一郎 森久
康 井野
康 井野
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Kurume University
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    • 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

Description

本発明は、骨折治療のため骨折部位の両側の骨を固定する骨折治療器具に関するものである。 The present invention relates to a fracture treatment device that fixes bones on both sides of a fracture site for fracture treatment.

従来より、骨折治療のため骨折部位の両側の骨を固定する骨折治療器具として、特許文献1に示す金属製のプレートが知られている。また、金属製のプレート以外のものとして金属製のワイヤーが知られている。 Conventionally, a metal plate shown in Patent Document 1 has been known as a fracture treatment instrument for fixing bones on both sides of a fracture site for fracture treatment. Further, a metal wire is known as something other than a metal plate.

金属製のプレートの場合、まず骨折部位を跨ぐようにプレートを配置する。そして、プレートに形成された貫通孔に合うように両側の骨にドリルで孔を空け、この貫通孔にネジを差し込んでプレートを両側の骨に固定する。これにより、両側の骨は完全に固定される。しかし、両側の骨がずれた状態で固定してしまうと、そのずれた状態を修正するのが非常に困難である。 In the case of a metal plate, the plate is first placed so as to straddle the fracture site. Then, a hole is drilled in the bones on both sides so as to match the through hole formed in the plate, and a screw is inserted into the through hole to fix the plate to the bones on both sides. This completely fixes the bones on both sides. However, if the bones on both sides are fixed in a displaced state, it is very difficult to correct the displaced state.

また、貫通孔の位置が固定されて、位置的な融通性が無いことから、所望の位置にネジを差し込むことが困難となる場合があり、これを解決する手段として、プレート上に不必要なまでに多くの孔を具備しているといった、複雑さもある。 In addition, since the position of the through hole is fixed and there is no positional flexibility, it may be difficult to insert the screw into the desired position. As a means for solving this, it is unnecessary on the plate. There is also complexity, such as having many holes.

一方、金属製のワイヤーの場合、両側の骨の孔にワイヤーを通した後にねじって縛ることによって両側の骨を固定するので、金属製のプレートの場合に比べて、骨の固定が緩やかであり、両側の骨がずれた状態で固定してしまったとしても、その修正が比較的に容易である。 On the other hand, in the case of a metal wire, the bones on both sides are fixed by twisting and tying the wire through the holes of the bones on both sides, so that the bones are fixed more loosely than in the case of a metal plate. Even if the bones on both sides are fixed in a misaligned state, it is relatively easy to correct it.

特表2007−515191号公報Special Table 2007-515191

しかしながら、金属製のワイヤーの場合、そのワイヤーを骨の表側から裏側へ通すのは簡単であるが、裏側から表側へ通すのが非常に困難であるという問題がある。また、複雑な骨折の場合、ワイヤーを使用した処置では、非常に複雑な処置を余儀なくされ、且つ、非常な手間と時間を必要とし、患者への侵襲の程度が高く好ましいとはいえない。 However, in the case of a metal wire, it is easy to pass the wire from the front side to the back side of the bone, but there is a problem that it is very difficult to pass the wire from the back side to the front side. Further, in the case of a complicated fracture, the treatment using a wire requires a very complicated treatment, requires a great deal of labor and time, and is not preferable because the degree of invasion to the patient is high.

本発明は、かかる点に鑑みてなされたものであり、その目的は、骨折部位の両側の骨に固定しやすく且つ両側の骨がずれた場合でも修正が可能な骨折治療器具を提供することにある。例えば、ワイヤーを使っての治療の際の利点を活かし、且つその欠点を克服すると同時に、金属製プレートによる強固さも活かし、且つその欠点を克服する、骨折治療器具を提供することである。 The present invention has been made in view of this point, and an object of the present invention is to provide a fracture treatment device that can be easily fixed to the bones on both sides of a fracture site and can be corrected even if the bones on both sides are displaced. is there. For example, it is to provide a fracture treatment instrument that utilizes the advantages and disadvantages of treatment using a wire and at the same time utilizes the strength of a metal plate and overcomes the disadvantages.

本発明は、骨折部位(30)の両側の骨(31)にネジ部材(14)を介して固定される骨折治療用具を前提とするものである。そして、この骨折治療用具は、前記ネジ部材(14)が貫通する複数の貫通孔(11)と、前記複数の貫通孔(11)の外縁部(12)同士を連通した連通部(13)とを備え、前記連通部(13)は、外力を加えると形状が変形して前記外力を加えるのを止めると前記変形終了時の形状を保持する。 The present invention is premised on a fracture treatment tool fixed to bones (31) on both sides of a fracture site (30) via a screw member (14). The fracture treatment tool includes a plurality of through holes (11) through which the screw member (14) penetrates, and a communication portion (13) in which the outer edge portions (12) of the plurality of through holes (11) communicate with each other. The shape of the communication portion (13) is deformed when an external force is applied, and the shape at the end of the deformation is maintained when the external force is stopped.

ここで、上述の外力とは、手術行為により連通部(13)を変形させるのに十分な力のことをいう。 Here, the above-mentioned external force means a force sufficient to deform the communication portion (13) by a surgical operation.

また、本発明の骨折治療器具において、前記連通部(13)は、棒状体又は板状体であるのが好ましい。 Further, in the fracture treatment device of the present invention, the communication portion (13) is preferably a rod-shaped body or a plate-shaped body.

また、本発明の骨折治療器具において、前記連通部(13)は、前記貫通孔(11)の外縁部(12)の連通方向へ向かって凹凸を繰り返す波状に形成されているのが好ましい。 Further, in the fracture treatment instrument of the present invention, it is preferable that the communication portion (13) is formed in a wavy shape in which irregularities are repeated in the communication direction of the outer edge portion (12) of the through hole (11).

また、本発明の骨折治療器具において、前記連通部(13)は、幅方向側面(21)が前記外縁部(12)の厚さ方向端面(20)と同一面となるように形成されているのが好ましい。 Further, in the fracture treatment instrument of the present invention, the communication portion (13) is formed so that the width direction side surface (21) is flush with the thickness direction end surface (20) of the outer edge portion (12). Is preferable.

また、本発明の骨折治療器具において、前記貫通孔(11)の外縁部(12)は、前記連通部(13)の連通方向周りに回転可能であるのが好ましい。 Further, in the fracture treatment instrument of the present invention, it is preferable that the outer edge portion (12) of the through hole (11) can rotate around the communication direction of the communication portion (13).

本発明によれば、従来のプレート式のものと同様に、ネジ部材で骨折部位の両側の骨に固定することができるので、従来のワイヤー式のものに比べて、両側の骨に固定しやすい。
また、貫通孔を利用して骨折治療器具を骨にネジ部材で固定できるうえ、貫通孔の外縁部同士を、外力による変形が可能な連通部で連通するようにしたので、ワイヤーを使っての治療の際の利点を活かし、且つその欠点を克服すると同時に、金属製プレートによる強固さも活かし、且つその欠点を克服することができる。
また、連通部を変形自在に構成したので、例えば両側の骨がずれた状態で骨折治療器具を固定した後でも、連通部を外力によって変形させることにより、その骨のずれを修正することができる。
According to the present invention, since it can be fixed to the bones on both sides of the fracture site with a screw member as in the conventional plate type, it is easier to fix to the bones on both sides as compared with the conventional wire type. ..
In addition, the fracture treatment device can be fixed to the bone with a screw member using the through hole, and the outer edges of the through hole are communicated with each other by a communication part that can be deformed by an external force, so a wire is used. It is possible to take advantage of the advantages of treatment and overcome its drawbacks, and at the same time, take advantage of the strength of the metal plate and overcome its drawbacks.
Further, since the communication portion is deformably configured, even after fixing the fracture treatment instrument in a state where the bones on both sides are displaced, the displacement of the bone can be corrected by deforming the communication portion by an external force. ..

図1は、本発明の一実施形態に係る骨折治療器具を示し、(a)が平面図、(b)が正面図、(c)が側面図である。FIG. 1 shows a fracture treatment instrument according to an embodiment of the present invention, (a) is a plan view, (b) is a front view, and (c) is a side view. 図2は、骨折治療器具が伸長した状態を示す図である。FIG. 2 is a diagram showing a state in which the fracture treatment instrument is extended. 図3は、骨折治療器具が湾曲した状態を示す図である。FIG. 3 is a diagram showing a curved state of the fracture treatment instrument. 図4は、3つ以上の外縁部を有する骨折治療器具の平面図であり、(a)は外縁部(12)が直線状に並んだ骨折治療器具、(b)は略L字状の骨折治療器具、(c)はT字状の骨折治療器具である。FIG. 4 is a plan view of a fracture treatment instrument having three or more outer edges, (a) is a fracture treatment instrument in which outer edges (12) are arranged in a straight line, and (b) is a substantially L-shaped fracture. The treatment instrument, (c), is a T-shaped fracture treatment instrument. 図5は、骨折治療器具を骨に固定させた状態を示す図である。FIG. 5 is a diagram showing a state in which the fracture treatment instrument is fixed to the bone. 図6は、骨折治療器具の凸部を鉗子で掴んだ状態を示す図である。FIG. 6 is a diagram showing a state in which the convex portion of the fracture treatment instrument is grasped by forceps. 図7は、一実施形態の変形例1を示す平面図である。FIG. 7 is a plan view showing a modification 1 of the embodiment.

以下、本発明の一実施形態に係る骨折治療器具(10)を図面に基づいて詳細に説明する。なお、以下に説明する一実施形態は例示であり、本発明が一実施形態に限定されるものではない。 Hereinafter, the fracture treatment instrument (10) according to the embodiment of the present invention will be described in detail with reference to the drawings. It should be noted that one embodiment described below is an example, and the present invention is not limited to one embodiment.

一実施形態の骨折治療器具(10)は、骨折治療のため骨折部位の両側の骨を固定するものである。この骨折治療器具(10)は、ボルト締めによる骨への固定を可能にするとともに、その中間部分が外力により変形自在に構成されている。 The fracture treatment device (10) of one embodiment fixes the bones on both sides of the fracture site for fracture treatment. This fracture treatment device (10) enables fixation to the bone by bolting, and its intermediate portion is configured to be deformable by an external force.

一実施形態の骨折治療器具(10)は、チタンプレートにより形成されている。生体適合性の観点からプレートの材質としてチタンを用いている。このチタンプレートの厚みは、0.4mmである。 The fracture treatment instrument (10) of one embodiment is formed of a titanium plate. Titanium is used as the material of the plate from the viewpoint of biocompatibility. The thickness of this titanium plate is 0.4 mm.

ここで、骨折治療器具(10)の材質は、金属材質が好ましく、更に好ましいのは、上述したように生体適合性を有するものである。また、骨折治療器具(10)の材質は、変形に対して粘りがあり、脆性が低いこと等が要求される。具体的には、チタンの他、チタン合金、ステンレス等が挙げられる。尚、銅系では銅合金等も挙げられるが、銅合金等を用いる場合には、腐食対策を施す必要がある。 Here, the material of the fracture treatment instrument (10) is preferably a metal material, and more preferably one having biocompatibility as described above. Further, the material of the fracture treatment instrument (10) is required to be sticky to deformation and have low brittleness. Specific examples thereof include titanium, titanium alloy, stainless steel and the like. In the case of copper, copper alloys and the like can be mentioned, but when copper alloys and the like are used, it is necessary to take measures against corrosion.

骨折治療器具(10)は、図1に示すように、その両端部分に貫通孔(11)が形成されている。この貫通孔(11)の内径は2mmである。また、この貫通孔(11)の外縁部(12)は、円形状に形成されている。外縁部(12)の外径は3〜4mmである。 As shown in FIG. 1, the fracture treatment instrument (10) has through holes (11) formed at both ends thereof. The inner diameter of the through hole (11) is 2 mm. Further, the outer edge portion (12) of the through hole (11) is formed in a circular shape. The outer diameter of the outer edge portion (12) is 3 to 4 mm.

また、骨折治療器具(10)は、貫通孔(11)の外縁部(12)同士を連通する連通部(13)が波状に形成されている。この波状の凹凸は、貫通孔(11)の外縁部(12)の連通方向へ向かって繰り返されている。連通部(13)が波状なので、図2に示すように連通部(13)の連通方向に伸ばしたり、縮めたり、また、図3に示すように連通部(13)を湾曲させることができる。このように、連通部(13)を波状にして、外縁部(12)よりも剛性を低下させることで変形しやすくしている。尚、一実施形態では、外縁部(12)と連通部(13)とが一体に形成されている。 Further, in the fracture treatment instrument (10), the communication portion (13) that communicates with the outer edge portions (12) of the through hole (11) is formed in a wavy shape. This wavy unevenness is repeated in the communication direction of the outer edge portion (12) of the through hole (11). Since the communicating portion (13) is wavy, it can be extended or contracted in the communicating direction of the communicating portion (13) as shown in FIG. 2, and the communicating portion (13) can be curved as shown in FIG. In this way, the communication portion (13) is made wavy to reduce the rigidity as compared with the outer edge portion (12), thereby making it easier to deform. In one embodiment, the outer edge portion (12) and the communication portion (13) are integrally formed.

ここで、一実施形態では、2つの外縁部(12)同士を1つの連通部(13)で連通しているが、これに限定されず、例えば、図4(a)に示すように、3つ以上の外縁部(12)を複数の連通部(13)で連通させた骨折治療器具(10a)であってもよい。こうすると、一方の連通部(13)を縮ませて、他方の連通部(13)を伸ばすことにより、外縁部(12)と外縁部(12)との間の間隔を異ならせることができる。また、連通部(13)を湾曲させれば、複数の外縁部(12)の並びを直線状から湾曲状にすることができる。また、3つ以上の外縁部(12)を一列に並べたものに限定されず、例えば図4(b)に示す略L字状の骨折治療器具(10b)であってもよいし、図4(c)に示すT字状の骨折治療器具(10c)であってもよいし、Y字状、H字状、又はX字状に配置されたものでもよい。また、ランダムに配置された複数の外縁部(12)を複数の連通部(13)で連通させるようにしてもよい。 Here, in one embodiment, the two outer edge portions (12) are communicated with each other by one communication portion (13), but the present invention is not limited to this, and for example, as shown in FIG. 4A, 3 It may be a fracture treatment device (10a) in which one or more outer edges (12) are communicated by a plurality of communication portions (13). In this way, the distance between the outer edge portion (12) and the outer edge portion (12) can be made different by shrinking one communication portion (13) and extending the other communication portion (13). Further, if the communication portion (13) is curved, the arrangement of the plurality of outer edge portions (12) can be changed from a straight line to a curved line. Further, the present invention is not limited to one in which three or more outer edge portions (12) are arranged in a row, and may be, for example, a substantially L-shaped fracture treatment instrument (10b) shown in FIG. 4 (b), or FIG. It may be the T-shaped fracture treatment instrument (10c) shown in (c), or it may be arranged in a Y-shape, an H-shape, or an X-shape. Further, a plurality of randomly arranged outer edge portions (12) may be communicated with each other by a plurality of communicating portions (13).

このような種々の形状の骨折治療器具(10)を予め製作しておけば、それらを骨折部位の状況に応じて使い分けることができる。骨折部位の状況によって、一実施形態の骨折治療器具(10)が複数必要な場合でも、例えば上述のH字状のものであれば1つで済む場合もあり、骨折治療の効率化を図ることができる。 If such various shapes of fracture treatment instruments (10) are manufactured in advance, they can be used properly according to the condition of the fracture site. Depending on the situation of the fracture site, even if a plurality of fracture treatment instruments (10) of one embodiment are required, for example, one of the above-mentioned H-shaped ones may be sufficient to improve the efficiency of fracture treatment. Can be done.

この骨折治療器具(10)は、図5に示すように、貫通孔(11)にネジ部材としてのボルト(14)を通し、ボルト締めによって顎顔面の骨折部位(30)の両側の骨(31)に固定される。骨折治療器具(10)は、骨折部位(30)を跨いで両側の骨(31)に固定される。このように、ボルト締めによって骨折治療器具(10)を骨(31)にしっかりと固定することができるので、従来のワイヤー式のものに比べて、骨折治療器具(10)の固定作業を容易に行うことができる。 In this fracture treatment instrument (10), as shown in FIG. 5, a bolt (14) as a screw member is passed through a through hole (11), and the bones (31) on both sides of the maxillofacial fracture site (30) are tightened by bolting. ) Is fixed. The fracture treatment device (10) is fixed to the bones (31) on both sides across the fracture site (30). In this way, the fracture treatment instrument (10) can be firmly fixed to the bone (31) by tightening the bolts, so that the fracture treatment instrument (10) can be easily fixed as compared with the conventional wire type. It can be carried out.

また、この骨折治療器具(10)の連通部(13)は、施術時の器具、例えばペンチ類又はプライヤ類によって強制的に外力を加えると変形し、外力を加えるのを止めるとその変形終了時の状態を保持するように構成されている。通常の生活環境における患者の内的な力(例えば、骨折部分の外れようとする力、患者自身の運動等により受ける力)や、物との接触等による外的な力を受けても、その内的又は外的な力が、上述した施術時の器具の強制的な外力よりも小さければ、連通部(13)は変形せずに、その状態を保持する。 In addition, the communication part (13) of this fracture treatment instrument (10) is deformed when an external force is forcibly applied by an instrument at the time of treatment, for example, pliers or pliers, and when the external force is stopped, the deformation ends. It is configured to hold the state of. Even if the patient receives an internal force in a normal living environment (for example, a force to remove the fractured part, a force received by the patient's own exercise, etc.) or an external force due to contact with an object, etc. If the internal or external force is less than the forced external force of the instrument at the time of the procedure described above, the communicating portion (13) will remain in that state without deformation.

また、連通部(13)は、施術時の器具による外力が繰り返して加えられることによって生じる金属疲労を起こしやすいので、一実施形態のプレート状のものに代えて、断面が多角形、円、楕円等の柱状のものにすることにより、連通部(13)の金属疲労を起こりにくくすることができる。 Further, since the communication portion (13) is liable to cause metal fatigue caused by the repeated application of an external force by the instrument at the time of treatment, the cross section is polygonal, circular, or elliptical instead of the plate-shaped one of one embodiment. By making it a columnar shape such as, it is possible to prevent metal fatigue of the communicating portion (13) from occurring.

また、例えば、骨折部位(30)の両側の骨(31)と骨(31)との間にずれや隙間がある状態で骨折治療器具(10)を固定してしまった場合でも、従来のプレート式のものとは違い、連通部(13)を伸ばしたり、縮めたり、曲げたりすることによって、両側の骨(31)と骨(31)との間のずれや隙間を修正することができる。 Further, for example, even if the fracture treatment instrument (10) is fixed with a gap or a gap between the bones (31) on both sides of the fracture site (30), the conventional plate Unlike the formula, the gap or gap between the bones (31) on both sides can be corrected by stretching, contracting, or bending the communication portion (13).

また、従来の骨折手術では、複雑な骨折の場合、まずワイヤーで仮固定を行い、両側の骨(31)と骨(31)のずれの修正を行った後に、プレートで固定することが行われていたが、この骨折治療器具(10)では、ワイヤーをプレートに置き換える必要がなく、骨折治療器具(10)を一旦骨(31)に固定すれば、骨折治療器具(10)を外すことなく、両側の骨(31)と骨(31)との間のずれや隙間を修正することができる。これにより、骨折手術の簡易化及び手術時間の大幅な短縮を行うことができる。 In addition, in conventional fracture surgery, in the case of a complicated fracture, temporary fixation is performed with a wire, correction of the deviation between the bones (31) and bones (31) on both sides, and then fixation with a plate. However, with this fracture treatment device (10), there is no need to replace the wire with a plate, and once the fracture treatment device (10) is fixed to the bone (31), the fracture treatment device (10) does not need to be removed. It is possible to correct the gap or gap between the bones (31) on both sides. As a result, the fracture surgery can be simplified and the operation time can be significantly shortened.

また、骨折治療器具(10)は、図6に示すように、貫通孔(11)の開口面(15)の向きと連通部(13)の凹凸面(16)の向きとが直交するように、貫通孔(11)の外縁部(12)と連通部(13)との境目(17)が90°捻られている。ここで、貫通孔(11)の開口面(15)と連通部(13)の凹凸面(16)との向きを直交させる場合には、連通部(13)と外縁部(12)とを別部材とし、連通部(13)に対し外縁部(12)を90°回転させた状態で溶接することも考えられるが、一実施形態では、溶接は行わず捻るだけで、貫通孔(11)の開口面(15)と連通部(13)の凹凸面(16)との向きを直交させることができる。 Further, in the fracture treatment instrument (10), as shown in FIG. 6, the orientation of the opening surface (15) of the through hole (11) and the orientation of the uneven surface (16) of the communicating portion (13) are orthogonal to each other. , The boundary (17) between the outer edge portion (12) of the through hole (11) and the communication portion (13) is twisted by 90 °. Here, when the directions of the opening surface (15) of the through hole (11) and the uneven surface (16) of the communicating portion (13) are orthogonal to each other, the communicating portion (13) and the outer edge portion (12) are separated. It is conceivable to use it as a member and weld it in a state where the outer edge portion (12) is rotated by 90 ° with respect to the communicating portion (13), but in one embodiment, the through hole (11) is simply twisted without welding. The directions of the opening surface (15) and the uneven surface (16) of the communicating portion (13) can be orthogonal to each other.

また、貫通孔(11)の開口面(15)の向きと連通部(13)の凹凸面(16)の向きとを直交させるようにしたので、骨折治療器具(10)を骨(31)に固定したときに、連通部(13)の凹凸面(16)が骨(31)から立設した姿勢にすることができる。施術者(40)が骨折部位(30)と対向したとき、その対向方向に沿って連通部(13)の凹凸部の溝(18)が延びるので、その溝(18)に施術者(40)が鉗子(41)を対向方向へ真っ直ぐに入れることができ、鉗子(41)によって連通部(13)の凸部(19)全体を掴んで変形させることができる。 In addition, since the orientation of the opening surface (15) of the through hole (11) and the orientation of the uneven surface (16) of the communicating portion (13) are made orthogonal to each other, the fracture treatment instrument (10) is used as the bone (31). When fixed, the uneven surface (16) of the communication portion (13) can be in an upright position from the bone (31). When the practitioner (40) faces the fracture site (30), the groove (18) of the uneven portion of the communication portion (13) extends along the facing direction, so that the practitioner (40) extends into the groove (18). The forceps (41) can be inserted straight in the opposite direction, and the forceps (41) can grab and deform the entire convex portion (19) of the communicating portion (13).

また、骨折治療器具(10)において、貫通孔(11)の外縁部(12)の端面(20)と連通部(13)の側面(21)とが、同一平面(図1(b)を参照)となるように、外縁部(12)と連通部(13)とが90°捻られている。これにより、骨折治療器具(10)をボルト締めしたとき、外縁部(12)の端面(20)と連通部(13)の側面(21)とを骨(31)の表面にぴったりと固定することができる。 Further, in the fracture treatment instrument (10), the end surface (20) of the outer edge portion (12) of the through hole (11) and the side surface (21) of the communication portion (13) are flush with each other (see FIG. 1 (b)). ), The outer edge portion (12) and the communication portion (13) are twisted by 90 °. As a result, when the fracture treatment device (10) is bolted, the end face (20) of the outer edge (12) and the side surface (21) of the communication part (13) are firmly fixed to the surface of the bone (31). Can be done.

(一実施形態の変形例)
一実施形態の変形例の骨折治療器具(10d)は、一実施形態の骨折治療器具(10)とは違い、貫通孔(11)の外縁部(12)と連通部(13)とが別体で構成されている。図7に示すように、ネジ(25)を介して外縁部(12)と連通部(13)とが相対的に回転可能に接続されている。連通部(13)が外縁部(12)に対して回転可能であるので、骨折治療器具(10d)の変形の自由度を高め、骨(31)にフィットさせ易くすることができる。
(Modified example of one embodiment)
The fracture treatment device (10d) of the modified example of one embodiment is different from the fracture treatment device (10) of one embodiment in that the outer edge portion (12) and the communication portion (13) of the through hole (11) are separate. It is composed of. As shown in FIG. 7, the outer edge portion (12) and the communicating portion (13) are relatively rotatably connected via a screw (25). Since the communication portion (13) is rotatable with respect to the outer edge portion (12), the degree of freedom of deformation of the fracture treatment instrument (10d) can be increased, and it can be easily fitted to the bone (31).

(その他の実施例)
一実施形態の骨折治療器具は、I字状のプレートで形成されていたが、これに限定されず、例えば平面視がL字状、T字状、Y字状、H字状又はX字状等の様々なプレートであってもよい。また、平面視が曲線状のものであってもよい。また、それらのプレートに形成される貫通孔も2つに限定されず、3つ以上であってもよい。このような様々な形状のものであっても、貫通孔と貫通孔の外縁部を連通する連通部を波状に形成することにより、本発明と同じ効果を奏する。また、貫通孔が3つ以上形成される場合には、全ての連通部を波状に形成する必要はなく、変形させたい箇所の連通部のみを波状に形成してもよい。このような形状とすることで、より複雑な骨折部位又は骨折形状に対して、より一層柔軟に対応することができる。
(Other Examples)
The fracture treatment device of one embodiment is formed of an I-shaped plate, but is not limited to this, and for example, the plan view is L-shaped, T-shaped, Y-shaped, H-shaped, or X-shaped. It may be various plates such as. Further, the plan view may be curved. Further, the through holes formed in those plates are not limited to two, and may be three or more. Even with such various shapes, the same effect as that of the present invention can be obtained by forming the communication portion that communicates the through hole and the outer edge portion of the through hole in a wavy shape. Further, when three or more through holes are formed, it is not necessary to form all the communicating portions in a wavy shape, and only the communicating portions in the portion to be deformed may be formed in a wavy shape. With such a shape, it is possible to respond more flexibly to a more complicated fracture site or fracture shape.

一実施形態の骨折治療器具は、材質がチタンであったが、これに限定されず、例えばチタン合金であってもよいし、ステンレスであってもよい。この場合であっても、本発明と同様の効果を得ることができる。 The material of the fracture treatment instrument of one embodiment is titanium, but the material is not limited to this, and for example, it may be a titanium alloy or stainless steel. Even in this case, the same effect as that of the present invention can be obtained.

一実施形態の骨折治療器具は、連通部を波状にすることによって剛性を低下させて変形し易くしていたが、これに限定されず、例えば、連通部の幅を狭くしたり、連通部の厚みを薄くして剛性を低下させてもよいし、貫通部の外縁部と連通部とが別体の場合には、材質を異ならせることによって剛性を低下させるようにしてもよい。材質を異ならせる場合には、連通部の材質が貫通部の外縁部の材質よりも粘り強いものがよい。このような場合であっても、本発明と同様の効果を得ることができる。 In the fracture treatment device of one embodiment, the rigidity is lowered by making the communication portion wavy to facilitate deformation, but the present invention is not limited to this, and for example, the width of the communication portion may be narrowed or the communication portion may be deformed. The thickness may be reduced to reduce the rigidity, or when the outer edge portion of the penetrating portion and the communicating portion are separate bodies, the rigidity may be reduced by using different materials. When the materials are different, it is preferable that the material of the communicating portion is more tenacious than the material of the outer edge portion of the penetrating portion. Even in such a case, the same effect as that of the present invention can be obtained.

一実施形態の骨折治療器具は、貫通孔の外縁部と連通部とが90°捻られていたが、これに限定されず、貫通孔の開口面の向きと連通部の凹凸面の向きとが互いに異なるように90°よりも小さな角度で捻られていてもよい。 In the fracture treatment instrument of one embodiment, the outer edge portion of the through hole and the communicating portion are twisted by 90 °, but the orientation of the opening surface of the through hole and the uneven surface of the communicating portion are not limited to this. It may be twisted at an angle smaller than 90 ° so as to be different from each other.

一実施形態の骨折治療器具は、連通部が波状のプレートで形成されていたが、これに限定されず、波状の棒体(円柱又は角柱など)であってもよい。また、棒体を螺旋状に巻いたバネであってもよい。これらの場合であっても、連通部を連通方向に伸ばしたり、縮めたり、また、湾曲させたりすることができ、本発明と同様の効果を奏する。 The fracture treatment device of one embodiment has a communication portion formed of a wavy plate, but is not limited to this, and may be a wavy rod (cylinder, prism, etc.). Further, it may be a spring in which a rod body is spirally wound. Even in these cases, the communication portion can be extended, contracted, or curved in the communication direction, and the same effect as that of the present invention can be obtained.

骨折治療器具(10)は、鍛造により形成されてもよいし、貫通孔の外縁部と連通部とが溶接により接合されるようにしてもよい。 The fracture treatment instrument (10) may be formed by forging, or the outer edge portion of the through hole and the communicating portion may be joined by welding.

以上、説明したように、本発明は、骨折治療のため骨折部位の両側の骨を固定する骨折治療器具について有用である。 As described above, the present invention is useful for a fracture treatment device that fixes bones on both sides of a fracture site for fracture treatment.

10 骨折治療器具
11 貫通孔
12 外縁部
13 連通部
14 ボルト(ネジ部材)
15 貫通孔の開口面
16 連通部の凹凸面
17 境目
30 骨折部位
31 骨
40 施術者
41 鉗子
10 Fracture management instrument 11 Through hole 12 Outer edge 13 Communication part 14 Bolt (screw member)
15 Opening surface of through hole 16 Concavo-convex surface of communication part 17 Boundary 30 Fracture site 31 Bone 40 Practitioner 41 Forceps

Claims (6)

骨折部位(30)の両側の骨(31)にネジ部材(14)を介して固定される骨折治療器具であって、
前記ネジ部材(14)が貫通する複数の貫通孔(11)と、
前記複数の貫通孔(11)の外縁部(12)同士を連通した連通部(13)とを備え、
前記連通部(13)は、前記貫通孔(11)の外縁部(12)の連通方向へ向かって凹凸を繰り返す波状に形成されており、前記連通部(13)は、連通方向に伸ばしたり、縮めたり、又は湾曲させることが可能であって、前記連通部(13)は、外力を加えると形状が変形して前記外力を加えるのを止めると前記変形終了時の形状を保持する骨折治療器具において、3つ以上の外縁部(12)を備え、各外縁部(12)同士を前記連通部(13)で連通することを特徴とする骨折治療器具。
A fracture treatment device that is fixed to the bones (31) on both sides of the fracture site (30) via a screw member (14).
A plurality of through holes (11) through which the screw member (14) penetrates,
A communication portion (13) that communicates the outer edge portions (12) of the plurality of through holes (11) with each other is provided.
The communication portion (13) is formed in a wavy shape in which irregularities are repeated in the communication direction of the outer edge portion (12) of the through hole (11), and the communication portion (13) is extended in the communication direction or is formed. A fracture treatment device that can be contracted or curved, and the shape of the communication portion (13) is deformed when an external force is applied and retains the shape at the end of the deformation when the external force is stopped. A fracture treatment device comprising three or more outer edge portions (12), wherein the outer edge portions (12) are communicated with each other by the communication portion (13) .
前記連通部(13)は、棒状体又は板状体であることを特徴とする、請求項1に記載の骨折治療器具。 The fracture treatment device according to claim 1, wherein the communication portion (13) is a rod-shaped body or a plate-shaped body. 前記連通部(13)は、幅方向側面(21)が前記外縁部(12)の厚さ方向端面(20)と同一面となるように形成されていることを特徴とする、請求項1又は2に記載の骨折治療器具。 The communication portion (13) is formed so that the side surface (21) in the width direction is flush with the end surface (20) in the thickness direction of the outer edge portion (12). 2. The fracture treatment device according to 2. 前記貫通孔(11)の外縁部(12)は、前記連通部(13)の連通方向周りに回転可能であることを特徴とする、請求項1から3の何れか1つに記載の骨折治療器具。 The fracture treatment according to any one of claims 1 to 3, wherein the outer edge portion (12) of the through hole (11) is rotatable around the communication direction of the communication portion (13). Instrument. 3つ以上の外縁部(12)を一列に並べるか、略L字状に並べるか、T字状に並べるか、Y字状に並べるか、H字状に並べるか又はX字状に並べることを特徴とする、請求項1から4の何れか1つに記載の骨折治療器具 Arrange three or more outer edges (12) in a row, roughly L-shape, T-shape, Y-shape, H-shape, or X-shape. The fracture treatment device according to any one of claims 1 to 4, characterized in that . ネジ(25)を介して外縁部(12)と連通部(13)とが相対的に回転可能に接続されていることを特徴とする、請求項1から5の何れか1つに記載の骨折治療器具 The fracture according to any one of claims 1 to 5, wherein the outer edge portion (12) and the communication portion (13) are relatively rotatably connected via a screw (25). Treatment equipment .
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