JPH0650609U - Femoral resection guide - Google Patents

Femoral resection guide

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Publication number
JPH0650609U
JPH0650609U JP8888292U JP8888292U JPH0650609U JP H0650609 U JPH0650609 U JP H0650609U JP 8888292 U JP8888292 U JP 8888292U JP 8888292 U JP8888292 U JP 8888292U JP H0650609 U JPH0650609 U JP H0650609U
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Japan
Prior art keywords
guide
support rod
directional support
axis
resection guide
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.)
Withdrawn
Application number
JP8888292U
Other languages
Japanese (ja)
Inventor
佳男 佐々木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
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Kobe Steel Ltd
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Priority to JP8888292U priority Critical patent/JPH0650609U/en
Publication of JPH0650609U publication Critical patent/JPH0650609U/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/14Surgical saws ; Accessories therefor
    • A61B17/15Guides therefor
    • A61B17/154Guides therefor for preparing bone for knee prosthesis
    • A61B17/155Cutting femur

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Dentistry (AREA)
  • Biomedical Technology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)

Abstract

(57)【要約】 【構成】 方向性支持棒4に対して垂直方向の軸6とこ
の軸に対して垂直な面に方向性支持棒に対して垂直方向
の長形のピン穴7を有するガイド支持台5を先端部に設
けた方向性支持棒4と、軸穴9と軸穴を通る基線Lに対
して軸穴を中心にして 4°〜10°の範囲内に設けた複数
のピン穴10と前記基線に平行なスリット11とを有する切
除用ガイド8と、固定ピン12とからなる大腿骨切除用ガ
イドである。 【効果】 一個の大腿骨切除用ガイドで両足の大腿骨遠
位部の患部の切除に適用可能で、切除用ガイドを患者の
外反位角度に合わせ固定することによって、患部を工学
的軸線に対して垂直な面で切除することができる。した
がって、ルースニング等による大腿骨損傷が大幅に減少
できるようになる。
(57) [Summary] [Structure] An axis 6 perpendicular to the directional support rod 4 and an elongated pin hole 7 perpendicular to the directional support rod are provided on a plane perpendicular to the axis. A directional support rod 4 provided with a guide support base 5 at its tip, and a plurality of pins provided within a range of 4 ° to 10 ° around the shaft hole 9 and a base line L passing through the shaft hole. The femoral resection guide comprises a resecting guide 8 having a hole 10 and a slit 11 parallel to the base line, and a fixing pin 12. [Effect] With one femoral resection guide, it can be applied to resection of the affected part of the distal femur of both feet. By fixing the resection guide according to the valgus angle of the patient, the affected part can be transformed into an engineering axis. On the other hand, it can be cut in a plane perpendicular to it. Therefore, the damage to the femur due to loosening or the like can be significantly reduced.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、人工膝関節の手術用具である大腿骨切除用ガイドに関するものであ る。 The present invention relates to a femoral resection guide, which is a surgical instrument for an artificial knee joint.

【0002】[0002]

【従来の技術】[Prior art]

整形外科では、変形性関節症、リュウマチあるいは骨腫瘍等の患者には、人工 膝関節置換術が行われている。この置換術において、大腿骨の遠位部(膝関節部 )の患部を切断除去するのに、大腿骨切除用ガイドが使用されている。 In orthopedics, patients with osteoarthritis, rheumatism, bone tumors, etc. are undergoing total knee arthroplasty. In this replacement operation, a femoral resection guide is used to cut and remove the affected part of the distal part (knee joint part) of the femur.

【0003】 人間の大腿骨および脛骨の解剖学的位置関係を図4に示す。図において、1は 工学的軸線(あるいは、荷重負荷される機能軸線)と呼び、荷重が伝達される方 向を示す。骨盤20から伝達された体重等の荷重は、大腿骨骨頭21で受け膝関節そ して足関節に伝達される。2は大腿骨髄腔の軸と脛骨髄腔の軸を結ぶ解剖学的軸 線で、この解剖学的軸線2と工学的軸線1とのなす角度θを外反位角度と呼び、 大腿骨22の軸線が脛骨23の軸線から外方へ反った角度を表している。この外反位 角度θは人によって異なり 4°〜10°の範囲内にある。FIG. 4 shows the anatomical relationship between the human femur and tibia. In the figure, 1 is called an engineering axis (or functional axis to which a load is applied) and indicates the direction in which the load is transmitted. The load such as weight transmitted from the pelvis 20 is received by the femoral head 21 and transmitted to the knee joint and the ankle joint. 2 is an anatomical axis connecting the axis of the femoral bone marrow cavity and the axis of the tibial bone marrow cavity. The angle θ between this anatomical axis 2 and the engineering axis 1 is called the valgus angle, and the femur 22 The axis represents the angle at which the axis bends outward from the axis of the tibia 23. This valgus angle θ varies from person to person and is within the range of 4 ° to 10 °.

【0004】 図において、3は大腿骨の遠位部の切除ラインを示す。人工膝関節の大腿部コ ンポーネントを大腿骨遠位部に埋め込むまえに、大腿骨遠位部の患部を切除ライ ン3で切除しなければならない。切除ライン3は工学的軸線1に対して垂直であ ることが肝要で、工学的軸線1に対して、常に垂直なる面(切除ライン3)で切 除すると、体重等の荷重を常に垂直なる面で受けることになるので、人工膝関節 の機能は安定する。なお、24は切除部分である。In the figure, 3 indicates a cutting line at the distal part of the femur. Before implanting the femoral component of the artificial knee joint into the distal femur, the affected part of the distal femur must be excised with the excision line 3. It is essential that the resection line 3 is perpendicular to the engineering axis 1, and if cutting is performed with a plane that is always perpendicular to the engineering axis 1 (resection line 3), loads such as weight will always be perpendicular. The function of the artificial knee joint is stable because it is received on the surface. Incidentally, 24 is the excised part.

【0005】 手術中に工学的軸線1を直接基準にすることは難しいので、解剖学的軸線2を 基準にして、患者個々に測定した外反位角度θに合わせて、切除ライン3を決め 、患部を切除する。具体的には、方向性支持棒の先端部に方向性支持棒の軸に対 して外反位角度θだけ傾けたガイドを取り付け、この方向性支持棒を大腿骨髄腔 内に挿入して、ガイドに沿って患部を切除する。このことによって、大腿骨遠位 部の患部を工学的軸線1に対して垂直な面で切除することができる。Since it is difficult to directly refer to the engineering axis 1 during surgery, the resection line 3 is determined according to the valgus angle θ measured for each patient with the anatomical axis 2 as a reference. Remove the affected area. Specifically, a guide tilted by the valgus angle θ with respect to the axis of the directional support rod is attached to the tip of the directional support rod, and the directional support rod is inserted into the femoral marrow cavity, Excise the affected area along the guide. As a result, the affected part of the distal femur can be excised in a plane perpendicular to the engineering axis 1.

【0006】 図5に従来の大腿骨切除用ガイドを示す。図において、14は方向性支持棒を示 し、方向性支持棒14の先端部には切除用ガイド15を取り付ける断面が4角形のガ イド棒16があり、このガイド棒16は外反位角度θだけ方向性支持棒14に対して屈 曲している。切除用ガイド15には切除用鋸歯が入るスリット17が設けてある。FIG. 5 shows a conventional guide for femoral resection. In the figure, 14 indicates a directional support rod, and at the tip of the directional support rod 14, there is a guide rod 16 having a quadrangular cross section to which a cutting guide 15 is attached. It bends with respect to the directional support rod 14 by θ. The cutting guide 15 is provided with a slit 17 into which a cutting saw tooth is inserted.

【0007】 使用時は図5(b) に示すようにガイド棒16に切除用ガイド15を嵌合した形で取 り付け、この後、(c) に示すように方向性支持棒14を大腿骨髄腔内に挿入して、 ガイド棒16に沿って切除用ガイド15を移動して、患部切除ライン3にスリット17 を合わせ、スリット17に鋸歯を通し、スリット17に沿わして鋸歯を移動して患部 を切除する。At the time of use, the cutting guide 15 is attached to the guide rod 16 as shown in FIG. 5B, and then the directional support rod 14 is attached to the thigh as shown in FIG. 5C. Insert into the bone marrow cavity, move the guide 15 for resection along the guide rod 16, align the slit 17 with the affected part resection line 3, pass the sawtooth through the slit 17, and move the sawtooth along the slit 17. The affected area by excision.

【0008】 上記したような方向性支持棒14と切除用ガイド15を使用する切除では、患者の 外反位角度θに合った方向性支持棒が必要となる。このことは手術用具の品数が 非常に増えることから好ましいことではなく、通常は、平均的な外反位角度θ( 例えば、 5°)を有する方向性支持棒を一個のみ準備し、これでもって全てに対 処しているのが実状である。In the resection using the directional support rod 14 and the resection guide 15 as described above, a directional support rod matching the valgus position θ of the patient is required. This is not desirable because it greatly increases the number of surgical tools, and normally only one directional support rod with an average valgus angle θ (eg 5 °) is prepared and The reality is that we are dealing with everything.

【0009】[0009]

【考案が解決しようとする課題】[Problems to be solved by the device]

患者個々の外反位角度で、大腿骨遠位部の患部を切除することが理想的ではあ るが、上記したように、通常は、平均的な外反位角度を有する方向性支持棒を一 個のみ準備し、これでもって全ての外反位角度に対処しているのが実状である。 Although it is ideal to excise the affected part of the distal femur at each patient's valgus angle, as described above, a directional support rod having an average valgus angle is usually used. The reality is that only one is prepared and this is used to deal with all valgus angles.

【0010】 このため、患者に合った外反位角度で患部を切除することができないという問 題があった。すなわち、多くの患者に対しては、工学的軸線に対して垂直な面で 患部が切除されなくなり、その結果、体重等の荷重が膝関節面に不均一に負荷さ れるため、ルースニング等が生じて再手術につながる原因ともなっている。Therefore, there has been a problem that the affected area cannot be resected at the valgus angle that matches the patient. In other words, for many patients, the affected area will not be excised in a plane perpendicular to the engineering axis, and as a result, weight and other loads will be unevenly applied to the knee joint surface, resulting in loosening, etc. It is also a cause of re-operation.

【0011】 本考案は、上記の問題点を解決するためになされたもので、方向性支持棒の先 端部に、外反位角度に応じて、位置決め可能な切除用ガイドを取り付けることに よって、患者の外反位角度に合わせて患部を切除することが可能な大腿骨切除用 ガイドを提供することを目的とする。The present invention has been made to solve the above-mentioned problems, and by attaching a cutting guide which can be positioned according to the valgus angle to the front end portion of the directional support rod. An object of the present invention is to provide a femoral resection guide capable of resecting an affected part according to the valgus angle of the patient.

【0012】[0012]

【課題を解決するための手段】[Means for Solving the Problems]

本考案の要旨は、大腿骨髄腔内に挿入した方向性支持棒の先端部に取り付けた 切除用ガイドを使用して患部を切除する大腿骨切除用ガイドにおいて、方向性支 持棒に対して垂直方向の軸とこの軸に対して垂直な面に方向性支持棒に対して垂 直方向の長形のピン穴を有するガイド支持台を先端部に設けた方向性支持棒と、 軸穴と軸穴を通る基線に対して軸穴を中心にして 4°〜10°の範囲内に設けた複 数のピン穴と前記基線に平行なスリットとを有する切除用ガイドと、固定ピンと からなる大腿骨切除用ガイドである。 The gist of the present invention is a femoral resection guide for resecting an affected area by using a resection guide attached to the tip of a directional support rod inserted into a femoral bone marrow cavity. Directional support rod provided with a guide support base that has an elongated pin hole in the direction perpendicular to the axis of the direction and a vertical direction to the direction support rod at the tip, and the shaft hole and the shaft. A femur consisting of an ablation guide having a plurality of pin holes provided within a range of 4 ° to 10 ° around the axial hole with respect to the base line passing through the hole and a slit parallel to the base line, and a fixing pin. It is a cutting guide.

【0013】[0013]

【作用】[Action]

方向性支持棒の先端部に設けたガイド支持台の、方向性支持棒に対して垂直に 設けた軸に、切除用ガイドの軸穴を嵌合して、回転可能に切除用ガイドを方向性 支持棒の先端部に取り付ける。 The guide support base provided at the tip of the directional support rod is inserted into the shaft hole of the cutting guide, which is perpendicular to the directional support rod. Attach to the tip of the support rod.

【0014】 切除用ガイドの軸穴を通る基線に対して軸穴を中心にして 4°〜10°の範囲内 に設けた複数のピン穴は、切除用ガイドの回転角(外反位角度)を標示するとと もに、切除用ガイドを方向性支持棒に固定するためのもので、このピン穴とガイ ド支持台に設けた長形のピン穴を合わせ、これらのピン穴に固定ピンを挿入して 、切除用ガイドを方向性支持棒に固定する。A plurality of pin holes provided within a range of 4 ° to 10 ° around the shaft hole with respect to the base line passing through the shaft hole of the cutting guide have a rotation angle (valgus angle) of the cutting guide. In addition to marking, the cutting guide is fixed to the directional support rod.Align this pin hole with the long pin hole provided on the guide support and attach the fixing pin to these pin holes. Insert and secure the cutting guide to the directional support rod.

【0015】 切除用ガイドのスリットは患部を切除する鋸歯のガイドに当たり、このスリッ トに鋸歯を通し、スリットに沿わせて鋸歯を移動させて患部を切除する。スリッ トは切除用ガイドの回転角に応じて、常に、方向性支持棒に対して同じ角度だけ 回転したことになる。すなわち、切除用ガイドの回転角を患者の外反位角度に合 わせることによって、スリットは工学的軸線に対して常に垂直となる。The slit of the excision guide corresponds to a saw-teeth guide for excising the affected part, and the saw-teeth are passed through this slit, and the saw-tooth is moved along the slit to excise the affected part. The slit will always rotate the same angle with respect to the directional support rod, depending on the angle of rotation of the cutting guide. That is, by matching the rotation angle of the cutting guide to the patient's valgus angle, the slit is always perpendicular to the engineering axis.

【0016】 使用時は、この大腿骨切除用ガイドを大腿骨髄腔内に挿入し、患者の外反位角 度に合わせて切除用ガイドを回転させ、固定ピンをピン穴に挿入して、切除用ガ イドを方向性支持棒に固定する。その後、スリットに鋸歯を通して大腿骨遠位部 の患部を切除する。このようにして、工学的軸線に対して垂直な面で患部を切除 することができる。At the time of use, the guide for femoral resection is inserted into the femoral bone marrow cavity, the resection guide is rotated according to the valgus angle of the patient, and the fixing pin is inserted into the pin hole to perform resection. Secure the guide to the directional support rod. Then, the sawtooth is passed through the slit to excise the affected part of the distal femur. In this way, the affected area can be excised in a plane perpendicular to the engineering axis.

【0017】[0017]

【実施例】【Example】

以下に、図に基づいて本考案の実施例を説明する。 本考案に係わる大腿骨切除用ガイドの方向性支持棒、切除用ガイドおよび固定 ピンを図1に示す。図1(a) は方向性支持棒で、方向性支持棒4は棒状で、大腿 骨髄腔内への挿入部分は丸棒状で、その前方は断面が4角形の棒状である。方向 性支持棒4の先端部にはガイド支持台5があり、ガイド支持台5には軸6と長形 のピン穴7がある。 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a directional support rod, a resection guide and a fixing pin of a femoral resection guide according to the present invention. FIG. 1 (a) is a directional support rod, the directional support rod 4 is rod-shaped, the insertion portion into the femoral bone marrow cavity is round rod-shaped, and the front is a rod-shaped cross section. A guide support base 5 is provided at the tip of the directional support rod 4, and the guide support base 5 has a shaft 6 and an elongated pin hole 7.

【0018】 図1(b) は切除用ガイドで、切除用ガイド8には軸穴9があり、この軸穴9に ガイド支持台5の軸6を嵌合して、方向性支持棒4に切除用ガイド8を取り付け る。軸穴9の両側には軸穴9を通る基線Lに対して軸穴9を中心にして 4°〜10 °の範囲内で 1°刻みでピン穴10が設けてある。ピン穴10は 4°〜10°の狭い範 囲内で 1°刻みに設けるため千鳥足状に設けた。したがって、ガイド支持台5の ピン穴も長形のピン穴7とした。また、切除用ガイド8には基線Lに平行に鋸歯 を通すスリット11がある。FIG. 1B shows a cutting guide, and the cutting guide 8 has a shaft hole 9, and the shaft 6 of the guide support base 5 is fitted into the shaft hole 9 so that the directional support rod 4 is attached to the shaft 6. Attach the cutting guide 8. Pin holes 10 are provided on both sides of the shaft hole 9 at intervals of 1 ° within a range of 4 ° to 10 ° with respect to the base line L passing through the shaft hole 9 at the center. The pin holes 10 are staggered in order to make them in 1 ° increments within a narrow range of 4 ° to 10 °. Therefore, the pin holes of the guide support base 5 are also elongated pin holes 7. Further, the cutting guide 8 has slits 11 which are parallel to the base line L and which allow saw teeth to pass therethrough.

【0019】 図1(c) は固定ピンで、固定ピン12の頭部にはつまみ13が設けてある。この固 定ピン12を、ピン穴10と長形のピン穴7を合わせた後、ピン穴10に挿入して方向 性支持棒4に切除用ガイド8を固定する。FIG. 1C shows a fixing pin, and a knob 13 is provided on the head of the fixing pin 12. The fixing pin 12 is inserted into the pin hole 10 after aligning the pin hole 10 and the elongated pin hole 7, and the cutting guide 8 is fixed to the directional support rod 4.

【0020】 図2は本考案に係わる大腿骨切除用ガイドの方向性支持棒の変形例で、ガイド 支持台5を方向性支持棒4の先端部で、方向性支持棒4に沿って移動可能にした ものである。これによって、ガイド支持台5を移動するのみで、切除用ガイドの スリットを切除ラインに合わせることができる。FIG. 2 is a modification of the directional support rod of the guide for femoral resection according to the present invention, in which the guide support base 5 can be moved along the directional support rod 4 at the tip of the directional support rod 4. This is what I did. As a result, the slit of the cutting guide can be aligned with the cutting line simply by moving the guide support 5.

【0021】 図3は本考案に係わる大腿骨切除用ガイドの使用例で、(a) は患者の右足の例 を、(b) は患者の左足の例を示す図である。図に示す例は患者の外反位角度θが 5°の場合で、まず、方向性支持棒4を大腿骨髄腔内へ挿入した後、方向性支持 棒4に切除用ガイド8を取り付け、患者の外反位角度 5°だけ切除用ガイド8を 回転させ、 5°のピン穴に固定ピン12を挿入して切除用ガイド8を方向性支持棒 4に固定する。その後、方向性支持棒4の挿入深さを調整して、切除用ガイド8 のスリット11を切除ライン3に合わせる。ここでスリット11に鋸歯を通し患部を 切除する。このようにして、工学的軸線1に対して垂直な面で患部を切除するこ とができる。なお、患者の外反位角度θは予めX線写真で測定しておく。3A and 3B show examples of use of the femoral resection guide according to the present invention. FIG. 3A shows an example of the right foot of a patient, and FIG. 3B shows an example of the left foot of the patient. The example shown in the figure is when the patient's valgus angle θ is 5 °. First, after inserting the directional support rod 4 into the femoral marrow cavity, attach the resection guide 8 to the directional support rod 4 and The cutting guide 8 is rotated by a valgus angle of 5 °, and the fixing pin 12 is inserted into the 5 ° pin hole to fix the cutting guide 8 to the directional support rod 4. Then, the insertion depth of the directional support rod 4 is adjusted so that the slit 11 of the cutting guide 8 is aligned with the cutting line 3. Here, the affected part is excised by passing a saw tooth through the slit 11. In this way, the affected area can be excised in a plane perpendicular to the engineering axis 1. The valgus angle θ of the patient is measured by an X-ray photograph in advance.

【0022】 図3に示すように、本考案の大腿骨切除用ガイドは一個で右足、左足にも適用 可能である。なお、切除用ガイド8のピン穴10は、スリット11とピン穴10の位置 関係からガイド支持台5の長形のピン穴7の位置を配慮すれば、軸穴9を通る基 線Lの両側に軸穴9を中心にして 4°〜10°の範囲内で 1°刻みで随意の位置に 設けてもよい。As shown in FIG. 3, the femoral resection guide of the present invention can be applied to the right foot and the left foot with one piece. The pin hole 10 of the excision guide 8 has both sides of the base line L passing through the shaft hole 9 if the position of the elongated pin hole 7 of the guide support base 5 is considered from the positional relationship between the slit 11 and the pin hole 10. In addition, it may be provided at arbitrary positions within the range of 4 ° to 10 ° with the shaft hole 9 as the center, in steps of 1 °.

【0023】[0023]

【考案の効果】[Effect of device]

本考案は、大腿骨髄腔内に挿入した方向性支持棒の先端部に取り付けた切除用 ガイドを使用して患部を切除する大腿骨切除用ガイドにおいて、方向性支持棒に 対して垂直方向の軸とこの軸に対して垂直な面に方向性支持棒に対して垂直方向 の長形のピン穴を有するガイド支持台を先端部に設けた方向性支持棒と、軸穴と 軸穴を通る基線に対して軸穴を中心にして 4°〜10°の範囲内に設けた複数のピ ン穴と前記基線に平行なスリットとを有する切除用ガイドと、固定ピンとからな る大腿骨切除用ガイドであって、この大腿骨切除用ガイドによれば一個の大腿骨 切除用ガイドで両足の大腿骨遠位部の患部の切除に適用可能で、切除用ガイドを 患者の外反位角度に合わせ固定することによって、患部を工学的軸線に対して垂 直な面で切除することができる。したがって、ルースニング等による大腿骨損傷 が大幅に減少できるようになった。 The present invention is a femoral resection guide for resecting an affected area by using a resection guide attached to the tip of a directional support rod inserted into a femoral bone marrow cavity. And a directional support rod with a guide support base that has an elongated pin hole perpendicular to the directional support rod on the surface perpendicular to this axis, and the base line that passes through the shaft hole and the shaft hole. A femoral resection guide including a resection guide having a plurality of pin holes formed within a range of 4 ° to 10 ° around the shaft hole and slits parallel to the base line, and a fixing pin. However, according to this femoral resection guide, one femoral resection guide can be applied to resection of the affected part of the distal femur of both feet, and the resection guide is fixed according to the patient's valgus angle. To ablate the affected area in a plane perpendicular to the engineering axis Door can be. Therefore, it has become possible to significantly reduce femoral damage due to loosening and the like.

【図面の簡単な説明】[Brief description of drawings]

【図1】本考案に係わる大腿骨切除用ガイドの説明図
で、(a) は方向性支持棒を、(b)は切除用ガイドを、(c)
は固定ピンを示す図である。
FIG. 1 is an explanatory view of a femoral resection guide according to the present invention, where (a) is a directional support rod, (b) is a resection guide, and (c).
FIG. 6 is a diagram showing a fixing pin.

【図2】本考案に係わる大腿骨切除用ガイドの方向性支
持棒の変形例を示す図である。
FIG. 2 is a view showing a modified example of the directional support rod of the femoral resection guide according to the present invention.

【図3】本考案に係わる大腿骨切除用ガイドの使用例を
示す図で、(a) は患者の右足の例を、(b) は患者の左足
の例を示す図である。
FIG. 3 is a view showing an example of use of the femoral resection guide according to the present invention, (a) showing an example of a patient's right foot, and (b) showing an example of a patient's left foot.

【図4】人間の大腿骨および脛骨の解剖学的位置関係を
示す図である。
FIG. 4 is a diagram showing an anatomical positional relationship between a human femur and a tibia.

【図5】従来の大腿骨切除用ガイドの説明図で、(a) は
個々の部品を、(b) は組立状態を、(c) は使用状態を示
す図である。
FIG. 5 is an explanatory view of a conventional femoral resection guide, (a) showing individual parts, (b) showing an assembled state, and (c) showing a used state.

【符号の説明】[Explanation of symbols]

1…工学的軸線、2…解剖学的軸線、3…切除ライン、
4…方向性支持棒、5…ガイド支持台、6…軸、7…長
形のピン穴、8…切除用ガイド、9…軸穴、10…ピン
穴、11…スリット、12…固定ピン、14…方向性支持棒、
15…切除用ガイド、16…ガイド棒、17…スリット、20…
骨盤、21…骨頭、22…大腿骨、23…脛骨、24…切除部
分、L…基線、θ…外反位角度。
1 ... Engineering axis, 2 ... Anatomical axis, 3 ... Ablation line,
4 ... Directional support rod, 5 ... Guide support base, 6 ... Shaft, 7 ... Long pin hole, 8 ... Cutting guide, 9 ... Shaft hole, 10 ... Pin hole, 11 ... Slit, 12 ... Fixing pin, 14 ... Directional support rod,
15 ... Cutting guide, 16 ... Guide rod, 17 ... Slit, 20 ...
Pelvis, 21 ... Bony head, 22 ... Femur, 23 ... Tibia, 24 ... Excised part, L ... Baseline, θ ... Eversion angle.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 大腿骨髄腔内に挿入した方向性支持棒の
先端部に取り付けた切除用ガイドを使用して患部を切除
する大腿骨切除用ガイドにおいて、方向性支持棒に対し
て垂直方向の軸とこの軸に対して垂直な面に方向性支持
棒に対して垂直方向の長形のピン穴を有するガイド支持
台を先端部に設けた方向性支持棒と、軸穴と軸穴を通る
基線に対して軸穴を中心にして 4°〜10°の範囲内に設
けた複数のピン穴と前記基線に平行なスリットとを有す
る切除用ガイドと、固定ピンとからなることを特徴とす
る大腿骨切除用ガイド。
1. A femoral resection guide for resecting an affected area by using a resection guide attached to the tip of a directional support rod inserted into a femoral bone marrow cavity. The shaft and the directional support rod provided with a guide support base having an elongated pin hole in a direction perpendicular to the shaft in the direction perpendicular to the directional support rod at the tip, and the shaft hole and the shaft hole. A thigh characterized by comprising a cutting pin having a plurality of pin holes provided within a range of 4 ° to 10 ° around a shaft hole with respect to a base line, a slit parallel to the base line, and a fixing pin. Bone resection guide.
JP8888292U 1992-12-25 1992-12-25 Femoral resection guide Withdrawn JPH0650609U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8888292U JPH0650609U (en) 1992-12-25 1992-12-25 Femoral resection guide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8888292U JPH0650609U (en) 1992-12-25 1992-12-25 Femoral resection guide

Publications (1)

Publication Number Publication Date
JPH0650609U true JPH0650609U (en) 1994-07-12

Family

ID=13955369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8888292U Withdrawn JPH0650609U (en) 1992-12-25 1992-12-25 Femoral resection guide

Country Status (1)

Country Link
JP (1) JPH0650609U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003103545A1 (en) * 2002-06-11 2003-12-18 Tatsumi Ichiroh Jig and jig set for supporting artificial knee joint replacement operation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003103545A1 (en) * 2002-06-11 2003-12-18 Tatsumi Ichiroh Jig and jig set for supporting artificial knee joint replacement operation

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