JP4439465B2 - Joint-free device inspection device - Google Patents
Joint-free device inspection device Download PDFInfo
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- JP4439465B2 JP4439465B2 JP2005368568A JP2005368568A JP4439465B2 JP 4439465 B2 JP4439465 B2 JP 4439465B2 JP 2005368568 A JP2005368568 A JP 2005368568A JP 2005368568 A JP2005368568 A JP 2005368568A JP 4439465 B2 JP4439465 B2 JP 4439465B2
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Description
本発明は関節免荷具検査装置に関し、例えば大腿骨頭壊死症の患者の股関節に取り付けられる股関節免荷具に適用して好適なものである。 The present invention relates to a joint relief device inspection apparatus, which is suitable for application to, for example, a hip joint relief device attached to a hip joint of a patient with femoral head necrosis.
近年、大腿骨頭壊死症においては、Ｘ線像に骨頭の変形が表れない初期の段階のものや、骨頭の変形破壊が進み、変形性股関節症にまで進行した段階のものまであり、その治療法は疾患の進行状況によって大きく異なる。例えば壊死した範囲が広がり、骨頭がつぶれてしまった段階では、股関節を温存する治療が困難となり、患者の股関節を人工股関節に置換する手術、いわゆる人工股関節置換術が一般に行われている（例えば特許文献１参照）。 In recent years, femoral head necrosis includes those in the initial stage where the deformation of the head of the bone is not shown in the X-ray image, and those in the stage where the deformation and destruction of the head of the bone has progressed to progress to osteoarthritis. Depends greatly on the progress of the disease. For example, at the stage where the necrotic area has expanded and the head of the bone has collapsed, it is difficult to preserve the hip joint, and surgery to replace the patient's hip joint with an artificial hip joint, so-called hip replacement, is commonly performed (for example, patents). Reference 1).
これに対して、将来的に骨頭の変形が予想される場合や骨頭が僅かに変形している段階においては、骨切り術や骨移植等の関節温存手術が一般的に行なわれている。
ところで、かかる関節温存手術による治療法では、術後長期に亘って大腿骨骨頭に加わる荷重を免荷する必要があり、このため当該股関節に対する荷重を免荷する股関節免荷具の開発が行なわれている。 By the way, in the treatment method using such a joint preserving operation, it is necessary to release the load applied to the femoral head for a long period after the operation, and therefore, a hip joint unloading device that releases the load on the hip joint has been developed. ing.
このような股関節免荷具では、壊死を生じた大腿骨骨頭への負担を軽減するだけでなく、日常生活に欠かせない歩行や***動作等の各種動作を行なえるように術後股関節の可動域をある程度確保しておくことが望ましい。 These hip joint unloaders not only relieve the burden on the necrotic femoral head, but also allow the post-operative hip joints to perform various operations such as walking and excretion, which are essential for daily life. It is desirable to secure some area.
このため、股関節免荷具の開発においては、当該股関節免荷具を取り付けた股関節がどの程度可動するか否かを正確に把握し、当該股関節免荷具の可動能力を正しく評価することが重要となる。 For this reason, in developing a hip joint loader, it is important to accurately grasp how much the hip joint to which the hip joint loader is attached moves and to accurately evaluate the movable ability of the hip joint loader It becomes.
そこで、本発明は以上の問題点を考慮してなされたもので、関節免荷具の可動能力を容易に評価できる関節免荷具検査装置を提供しようとするものである。 Therefore, the present invention has been made in consideration of the above problems, and an object of the present invention is to provide a joint loader inspection apparatus that can easily evaluate the movable ability of a joint loader.
本発明の請求項１記載の関節免荷具用検査装置は、一の骨模型に関節免荷具の一端側が固定されると供に、他の骨模型に前記関節免荷具の他端側が固定され、前記一の骨模型及び前記他の骨模型の連結部分である前記関節模型を跨がせるように前記関節免荷具が取付可能な構成を有する骨格模型と、前記関節免荷具を跨がせた前記関節模型の可動域を測定する測定手段とを備え、前記測定手段は、前記一の骨模型に固定した第１の固定部と、前記他の骨模型に固定した第２の固定部と、前記第１の固定部及び前記第２の固定部間に設けられ、前記関節模型を跨ぐように配置された回動測定機構とからなり、前記回動測定機構は、互いに直交するＸ軸、Ｙ軸及びＺ軸の３軸方向の並進変位と、各前記３軸方向の各軸回りの回転変位とを測定することにより、前記関節免荷具が取り付けられた状態で前記関節模型の可動域を測定することを特徴とするものである。 In the joint loader inspection apparatus according to claim 1 of the present invention, when one end side of the joint loader is fixed to one bone model, the other end side of the joint loader is connected to the other bone model. A skeletal model that is fixed and has a configuration to which the joint loader can be attached so as to straddle the joint model that is a connecting part of the one bone model and the other bone model; and the joint loader Measuring means for measuring the range of motion of the joint model straddled, and the measuring means includes a first fixing part fixed to the one bone model and a second fixing part fixed to the other bone model. The rotation measuring mechanism is provided between a fixed portion and the first fixed portion and the second fixed portion, and is disposed so as to straddle the joint model. The rotation measurement mechanisms are orthogonal to each other. Measure the translational displacement of the X-axis, Y-axis, and Z-axis in the three-axis directions and the rotational displacement around each axis in the three-axis directions. And by, and it is characterized in that for measuring the range of motion of the joint model in a state where the joint relieving device is attached.
また、本発明の請求項２記載の関節免荷具検査装置は、前記骨格模型を支持する骨格模型支持手段が上部に設けられていると供に、前記他の骨模型を所定方向に移動させる関節移動手段が底部に設けられた装置本体を備え、前記骨格模型は、前記一の骨模型が腸骨模型であり、前記他の骨模型が大腿骨模型であり、前記関節模型が股関節模型であって、前記骨格模型支持手段は、前記装置本体に一体形成された支持部材と、該支持部材にヒンジ部を介して連結された保持部材とからなり、前記保持部材に前記骨格模型の腰椎模型が固定され、前記ヒンジ部により前記腸骨模型の角度が選定可能に構成されていることを特徴とするものである。 Further, in the joint unloader inspection apparatus according to claim 2 of the present invention, the skeleton model support means for supporting the skeleton model is provided on the upper side, and the other bone model is moved in a predetermined direction. The joint moving means includes a device main body provided at the bottom, and the skeleton model is such that the one bone model is an iliac model, the other bone model is a femoral model, and the joint model is a hip model. The skeleton model support means includes a support member integrally formed with the apparatus main body, and a holding member connected to the support member via a hinge portion, and the lumbar model of the skeleton model is connected to the holding member. Is fixed, and the angle of the iliac model can be selected by the hinge portion .
さらに、本発明の請求項３記載の関節免荷具検査装置は、前記測定手段は、通知手段を有する情報処理装置と電気的に接続する接続手段を備え、前記測定手段で得られた可動域測定データを前記接続手段を介して前記情報処理装置へ送出し、前記測定手段によって得られた可動域測定データを基に、前記股関節模型を屈曲、伸展、内転、外転、内旋及び外旋させたときの各可動域測定結果を前記表示部に表示させることを特徴とするものである。 Furthermore, in the joint loader inspection apparatus according to claim 3 of the present invention, the measuring means includes a connecting means for electrically connecting to an information processing apparatus having a notifying means, and the range of motion obtained by the measuring means. Measurement data is sent to the information processing apparatus via the connection means, and the hip joint model is bent, extended, adduction, abduction, abduction, internal rotation and external rotation based on the movable range measurement data obtained by the measurement means. Each range-of-motion measurement result when rotated is displayed on the display unit .
本発明の請求項１記載の関節免荷具検査装置によれば、測定手段によって得られた可動域測定結果に基づいて関節免荷具を関節に取り付けたときに関節をどの程度可動できるか否かについて容易に認識させることができ、かくして関節免荷具の可動能力を容易に評価できる。 According to the joint loader inspection apparatus according to claim 1 of the present invention, how much the joint can be moved when the joint loader is attached to the joint based on the range of motion measurement result obtained by the measuring means. Thus, the ability to move the joint loader can be easily evaluated.
また、本発明の請求項２記載の関節免荷具検査装置によれば、各種状態に関節を確実に可動させることができ、かくして関節免荷具を関節に取り付けたときに関節がどの程度可動できるか否かを測定手段によって容易に測定できる。 In addition, according to the joint loader inspection apparatus according to claim 2 of the present invention, the joint can be reliably moved in various states, and thus the degree of movement of the joint when the joint loader is attached to the joint. It can be easily measured by the measuring means.
さらに、本発明の請求項１記載の関節免荷具検査装置によれば、関節免荷具を取り付けた股関節がどの程度可動するか否かを認識でき、かくして壊死を生じた大腿骨骨頭への負担を軽減するための股関節免荷具の可動能力について容易に評価できる。 Furthermore, according to the first aspect of the present invention according to the joint relieving device inspection apparatus, can recognize whether or not the extent to which the movable hip fitted joint relieving device, thus to caused necrosis femoral head Easily evaluate the ability of the hip joint loader to reduce the burden.
さらに、本発明の請求項３記載の関節免荷具検査装置によれば、情報処理装置の通知手段を介して測定手段で得られた可動域測定結果をユーザに対して通知し、これにより可動域測定結果に基づいてユーザに対し関節免荷具の可動能力について容易に評価させることができる。 Furthermore, according to the joint loader inspection apparatus of claim 3 of the present invention, the range of motion measurement result obtained by the measuring means is notified to the user via the notifying means of the information processing apparatus, and thereby the movable Based on the area measurement result, the user can easily evaluate the movable ability of the joint loader.
以下、本発明の実施の形態について、図面を参照しながら説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
（１）股関節免荷具用可動評価システムの全体構成
図１において、１は全体として股関節免荷具用可動評価システムを示し、この股関節免荷具用可動評価システム１は、人体の腸骨及び大腿骨に固定されて股関節に加わる荷重を免荷する股関節免荷具２と、当該股関節免荷具２を取り付けた股関節がどの程度可動するか否かを、成人の股関節を真似て製作した原寸大でなる人体骨格模型３を用いて測定する股関節免荷具検査装置４と、当該股関節免荷具検査装置４によって測定した可動域測定結果をユーザに通知するためのパーソナルコンピュータ５とから構成されている。
(1) Overall configuration of movable evaluation system for hip joint unloader In FIG. 1, 1 indicates a movable evaluation system for hip joint unloader as a whole. The hip joint loader 2 which is fixed to the femur and exempts the load applied to the hip joint, and how much the hip joint to which the hip joint loader 2 is attached moves is an original size imitating an adult hip joint. It comprises a hip joint loader inspection device 4 that measures using a large human skeleton model 3, and a personal computer 5 that notifies the user of the range of motion measurement result measured by the hip joint loader inspection device 4. ing.
股関節免荷具検査装置４では、予め用意した複数種類の股関節免荷具のなかからユーザが任意に選択した股関節免荷具２を人体骨格模型３の股関節６に跨がせて取り付け、骨格模型支持手段７によって人体骨格模型３を腰椎８で支持し、このときの股関節６の可動域を６自由度電気角度計９にて測定し、その可動域測定結果を可動域測定データとして有線10を介してパーソナルコンピュータ５へ送出し得るようになされている。 In the hip joint unloader inspection apparatus 4, the hip joint unloader 2 arbitrarily selected by the user from among a plurality of types of hip joint unloaders prepared in advance is attached across the hip joint 6 of the human skeleton model 3, and the skeleton model The human body skeleton model 3 is supported by the lumbar vertebra 8 by the support means 7, the range of motion of the hip joint 6 at this time is measured with a 6-degree-of-freedom electric angle meter 9, and the wire 10 is used as the range of motion measurement data. Through the personal computer 5.
情報処理装置としてのパーソナルコンピュータ５では、股関節免荷具検査装置４から受け取った可動域測定データに基づいて可動域測定結果を液晶ディスプレイ等の表示部11に表示してユーザに可動域測定結果を通知し、これによりユーザに対して股関節免荷具２の可動能力を評価させ得るようになされている。 In the personal computer 5 as the information processing device, the range of motion measurement result is displayed on the display unit 11 such as a liquid crystal display based on the range of motion measurement data received from the hip joint loader inspection device 4, and the range of motion measurement result is displayed to the user. This allows the user to evaluate the movable ability of the hip joint loader 2.
このようにして股関節免荷具用可動評価システム１では、股関節免荷具２や図示しない他の股関節免荷具を人体骨格模型３の股関節６に跨がせて取り付けたときに股関節がどの程度可動できるのかを測定し、その可動域測定結果からユーザが各股関節免荷具２の可動能力を評価し得るようになされている。 In this way, in the hip joint unloader movable evaluation system 1, how much is the hip joint when the hip joint unloader 2 or another hip joint unloader (not shown) is mounted across the hip joint 6 of the human skeleton model 3. Whether or not it is movable is measured, and the user can evaluate the movable ability of each hip joint loader 2 from the result of measuring the movable range.
（２）股関節免荷具の構成
先ず初めに股関節免荷具用可動評価システム１に用いられる複数種類の股関節免荷具のうち、基本的構成からなる代表的な股関節免荷具２についてのみ以下説明する。
(2) Configuration of hip joint loader First of all, only a representative hip joint loader 2 having a basic configuration among a plurality of types of hip joint loaders used in the hip joint loader movable evaluation system 1 is described below. explain.
図２（Ａ）及び（Ｂ）に示すように、この股関節免荷具２は、実際に人体の腸骨及び腸骨下方にある大腿骨に固定可能に構成されており、腸骨固定部12が股関節開閉用ヒンジ部13を介してアーム部14の一端に連結され、当該アーム部14の他端には股関節前後用ヒンジ部15を介して大腿骨固定部16が連結されている。 As shown in FIGS. 2 (A) and 2 (B), the hip joint loader 2 is configured to be actually fixable to the iliac bone of the human body and the femur below the iliac bone. Is connected to one end of the arm portion 14 via a hip joint opening / closing hinge portion 13, and the femoral fixing portion 16 is connected to the other end of the arm portion 14 via a hip joint front / rear hinge portion 15.
図３（Ａ）及び（Ｂ）に示すように、腸骨固定部12には、腸骨に直接取り付けられる固定板17と、当該固定板17から突出した連結部18とが設けられ、固定板17には複数のボルト用孔（図示せず）を介して腸骨に固定するためのボルト20が取り付けられるようになされている。なお、この固定板17の一面には上部及び下部に位置決め用の突起部19が設けられている。 As shown in FIGS. 3A and 3B, the iliac fixation portion 12 is provided with a fixation plate 17 that is directly attached to the iliac bone and a connecting portion 18 that protrudes from the fixation plate 17. A bolt 20 for fixing to the iliac bone is attached to 17 through a plurality of bolt holes (not shown). Note that a positioning projection 19 is provided on one surface of the fixed plate 17 at the upper and lower portions.
連結部18には、図２（Ｂ）に示したように、突出した下面に保持孔21が設けられており、当該保持孔21に股関節開閉用ヒンジ部13の第１の回動部25が水平方向D1（図１（Ａ））に回動自在に取り付けられている。 As shown in FIG. 2B, the connecting portion 18 is provided with a holding hole 21 on the protruding lower surface, and the first rotating portion 25 of the hip joint opening / closing hinge portion 13 is provided in the holding hole 21. It is rotatably attached in the horizontal direction D1 (FIG. 1A).
この場合、連結部18には、対向する側面間に貫通した挿入孔22が穿設され、この挿入孔22によって円筒形状でなる保持孔21の内周面の一部に断面半円形状の凹状部23が形成されている。 In this case, the connecting portion 18 is provided with an insertion hole 22 penetrating between the opposing side surfaces, and a concave shape having a semicircular cross section is formed on a part of the inner peripheral surface of the holding hole 21 having a cylindrical shape by the insertion hole 22. A portion 23 is formed.
保持孔21には、股関節開閉用ヒンジ部13の一端に形成された第１の回動部25が軸受メタル26を介在させて挿入され、当該第１の回動部25の外周面に位置固定用として形成された断面半円形状でなる環状凹部27が、保持孔21内の凹状部23に対向するように位置決めされ、この状態のまま挿入孔22に円柱形状のビス28が嵌合固定され得る。 A first turning part 25 formed at one end of the hip joint opening / closing hinge part 13 is inserted into the holding hole 21 with a bearing metal 26 interposed therebetween, and is fixed to the outer peripheral surface of the first turning part 25. The annular concave portion 27 having a semicircular cross section formed for use is positioned so as to face the concave portion 23 in the holding hole 21, and the cylindrical screw 28 is fitted and fixed to the insertion hole 22 in this state. obtain.
かくして股関節開閉用ヒンジ部13は、保持孔21に固定されたビス28が第１の回動部25の環状凹部27に嵌め込まれることにより、当該保持孔21から脱落することなく水平方向D1に回動自在に取り付けられる。 Thus, the hip joint opening / closing hinge portion 13 is rotated in the horizontal direction D1 without dropping from the holding hole 21 by fitting the screw 28 fixed to the holding hole 21 into the annular recess 27 of the first rotating portion 25. Mounted freely.
股関節開閉用ヒンジ部13には、同一形状の段部を対向面に備えた駒部30が形成されており、この駒部30のほぼ中心位置に枢支孔31が穿設されている。この駒部30は、アーム部14の一端にある断面コ字状でなる二股部32の隙間に差し込まれ、二股部32に形成された枢支孔（図示せず）及び駒部30の枢支孔31にねじ等の締結手段35が取り付けられ、これにより水平方向D1と直交する開閉方向D2にアーム部14を回動自在に可動させ得るようになされている。 In the hip joint opening / closing hinge portion 13, a piece portion 30 having a stepped portion of the same shape on the opposing surface is formed, and a pivotal support hole 31 is formed at a substantially central position of the piece portion 30. The piece portion 30 is inserted into a gap between the bifurcated portion 32 having a U-shaped cross section at one end of the arm portion 14, and a pivot hole (not shown) formed in the forked portion 32 and the pivot portion of the piece portion 30. Fastening means 35 such as a screw is attached to the hole 31 so that the arm part 14 can be rotated in an opening / closing direction D2 orthogonal to the horizontal direction D1.
ここでアーム部14は、二股部32と、当該二股部32と一体成形され、ほぼ直線状に延びたアーム本体36と、アーム本体36の先端に一体形成され、腸骨固定部12から遠ざかる方向（以下、外方と呼ぶ）へ所定角度に傾斜した支持軸部37とを備えている。 Here, the arm portion 14 is integrally formed with the bifurcated portion 32, the bifurcated portion 32, and extends substantially linearly, and is integrally formed at the distal end of the arm main body 36 and away from the iliac fixation portion 12. (Hereinafter referred to as “outside”) and a support shaft portion 37 inclined at a predetermined angle.
ここでアーム部14の他端となる支持軸部37には、大腿骨固定部16が股関節前後用ヒンジ部15を介して水平方向D1及び開閉方向D2と直交する前後方向D3（図２（Ａ）及び（Ｂ））に回動自在に取り付けられている。 Here, on the support shaft portion 37 which is the other end of the arm portion 14, the femoral fixing portion 16 is inserted through the hip joint front-rear hinge portion 15 in the horizontal direction D1 and the front-rear direction D3 (FIG. 2A). ) And (B)).
この場合、支持軸部37は、径がアーム本体36よりも小さく形成され、股関節前後用ヒンジ部15の軸受け部38に取り付けられている。 In this case, the support shaft portion 37 is formed to have a diameter smaller than that of the arm body 36, and is attached to the bearing portion 38 of the hip joint front-rear hinge portion 15.
軸受け部38は、同一形状でなる段部40を対向面に備え、この段部40に貫通孔41が穿設された構成を有し、当該貫通孔41に軸受メタル52を介在させてアーム部14の支持軸部37が挿入される。 The bearing portion 38 includes a step portion 40 having the same shape on the opposite surface, and has a configuration in which a through hole 41 is formed in the step portion 40, and a bearing metal 52 is interposed in the through hole 41 so as to form an arm portion. Fourteen support shaft portions 37 are inserted.
支持軸部37の先端側には、軸受メタル43を介して締結手段44が取り付けられ、これにより大腿骨固定部16が股関節前後用ヒンジ部15を介して水平方向D1及び開閉方向D2と直交する前後方向D3（図３（Ａ）及び（Ｂ））に回動自在に取り付けられている。 Fastening means 44 is attached to the distal end side of the support shaft portion 37 via a bearing metal 43, whereby the femur fixing portion 16 is orthogonal to the horizontal direction D1 and the opening / closing direction D2 via the hip joint front-rear hinge portion 15. It is rotatably attached in the front-rear direction D3 (FIGS. 3A and 3B).
股関節前後用ヒンジ部15には、第２の回動部46が設けられており、当該第２の回動部46に大腿骨固定部16が開閉方向D2及び前後方向D3と直交する直交方向D4に回動自在に取り付けられている。 The hip joint front / rear hinge portion 15 is provided with a second rotating portion 46, and the femoral fixing portion 16 is orthogonal to the opening / closing direction D2 and the front / rear direction D3. Is pivotally attached to the.
この場合、大腿骨固定部16の一端には、上面に保持孔50（図２（Ｂ））が設けられているとともに、側面間を貫通した挿入孔51が穿設され、この挿入孔51によって保持孔50の内周面の一部に断面半円形状でなる凹状部（図示せず）が形成されている。 In this case, a holding hole 50 (FIG. 2 (B)) is provided on the upper surface at one end of the femur fixing portion 16, and an insertion hole 51 penetrating between the side surfaces is formed. A concave portion (not shown) having a semicircular cross section is formed on a part of the inner peripheral surface of the holding hole 50.
保持孔50には、股関節前後用ヒンジ部15の第２の回動部46が軸受メタル52を介在させて挿入され、当該第２の回動部46の外周面に位置固定用として設けられた断面半円形状の環状凹部53が、凹状部（図示せず）に対向させて位置決めされ、この状態のまま挿入孔に円柱形状のビス55が嵌合固定され得る。 A second turning portion 46 of the hip joint front and rear hinge portion 15 is inserted into the holding hole 50 with a bearing metal 52 interposed therebetween, and is provided on the outer peripheral surface of the second turning portion 46 for fixing the position. An annular recess 53 having a semicircular cross section is positioned to face a recess (not shown), and a cylindrical screw 55 can be fitted and fixed to the insertion hole in this state.
これにより大腿骨固定部16は、保持孔50に固定されたビス55が第２の回動部46の環状凹部53に嵌め込まれることにより、当該保持孔50から股関節前後用ヒンジ部15を脱落させることなく、当該股関節前後用ヒンジ部15に対して開閉方向D2及び前後方向D3と直交する直交方向D4に回動自在に取り付けられる。 As a result, the femur fixing part 16 causes the hip joint front / rear hinge part 15 to fall off from the holding hole 50 by fitting the screw 55 fixed to the holding hole 50 into the annular recess 53 of the second rotating part 46. Without being attached to the hip joint front / rear hinge portion 15, the opening / closing direction D2 and the front / rear direction D3 are orthogonally attached to the orthogonal direction D4.
大腿骨固定部16は、ほぼ直線状に延び、成人の大腿骨内に挿入され得るような径でなる棒状体56を有し、この棒状体56内に芯部材57が内蔵された構成を有する。そして棒状体56及び芯部材57には、側面にそれぞれ貫通孔58，59が設けられており、当該大腿骨固定部16を大腿骨に固定するためのボルト60がこれら貫通孔58，59に螺着され得るようになされている。 The femur fixing portion 16 has a rod-like body 56 that extends substantially in a straight line and has a diameter that can be inserted into an adult femur, and a core member 57 is built in the rod-like body 56. . The rod-like body 56 and the core member 57 are provided with through holes 58 and 59 on the side surfaces, respectively, and bolts 60 for fixing the femur fixing portion 16 to the femur are screwed into the through holes 58 and 59. It is designed to be worn.
大腿骨固定部16は、人体骨格模型３において大腿骨骨頭を残して大転子を切断した大腿骨65（図１）の切断箇所から当該大腿骨65内に先端から挿入させてゆき、所定位置で位置決めするとともに、人体骨格模型３の大腿骨65の側面からボルト60を捻じ込み、当該ボルト60を介して当該大腿骨65に大腿骨固定部16を固定する。なお、大腿骨固定部16を大腿骨65に固定する際には、ボルト60を用いることなく骨セメント等を用いるようにしても良い。 The femoral fixation unit 16 is inserted from the distal end of the femur 65 (FIG. 1) obtained by cutting the greater trochanter leaving the femoral head in the human skeletal model 3 into the femur 65 from the distal end. And the bolt 60 is screwed from the side of the femur 65 of the human skeleton model 3, and the femur fixing part 16 is fixed to the femur 65 via the bolt 60. When fixing the femur fixing part 16 to the femur 65, bone cement or the like may be used without using the bolt 60.
続いて、腸骨66の側面に腸骨固定部12の突起部19に対応した凹部をドリルにて適宜形成し、当該凹部に腸骨固定部12の突起部19を挿入させることにより腸骨に腸骨固定部12を位置決めする。この状態のまま、固定板17のボルト用孔にボルト20を挿通して腸骨66の側面に捻じ込んでゆくことにより、図４に示すように、腸骨66の側面にボルト20を介して腸骨固定部12を固定して、股関節免荷具２を股関節に取り付け得るようになされている。 Subsequently, a recess corresponding to the protrusion 19 of the iliac fixation part 12 is appropriately formed on the side surface of the iliac 66 with a drill, and the protrusion 19 of the iliac fixation part 12 is inserted into the recess so that the iliac The iliac fixation part 12 is positioned. In this state, by inserting the bolt 20 into the bolt hole of the fixing plate 17 and screwing it into the side surface of the iliac 66, as shown in FIG. The iliac fixation part 12 is fixed, and the hip joint loader 2 can be attached to the hip joint.
なお、股関節免荷具２は、腸骨66に固定する腸骨固定部12と、腸骨66の下方にある大腿骨65に固定する大腿骨固定部16と、腸骨固定部12に対して大腿骨固定部16を所定方向に回動自在に連結し、腸骨固定部12からの荷重を支持するアーム部14とを備えるものであれば、上述した構成のものだけでなく、可動機構が少なく免荷機能を重視した股関節免荷具や、自在継手を設けて可動性の制限を少なくした股関節免荷具、人体骨格模型３の姿勢によらずに免荷能力を発揮するように可動機構を配置した股関節免荷具等この他種々の股関節免荷具であっても良い。 It should be noted that the hip joint unloading device 2 is connected to the iliac fixation part 12 to be fixed to the iliac 66, the femoral fixation part 16 to be fixed to the femur 65 below the iliac 66, and the iliac fixation part 12. As long as the femoral fixation part 16 is rotatably connected in a predetermined direction and includes the arm part 14 that supports the load from the iliac fixation part 12, not only the structure described above but also the movable mechanism A hip joint loader that places little emphasis on the load-carrying function, a hip joint loader that has a universal joint to reduce mobility restrictions, and a movable mechanism that demonstrates the load-carrying ability regardless of the posture of the human body skeleton model 3 Various other hip joint loaders such as a hip joint loader in which is disposed.
（３）股関節免荷具検査装置の構成
次に上述した股関節免荷具２を取り付けた股関節の可動域を測定する股関節免荷具検査装置４について説明する。
(3) Configuration of hip joint unloader inspection apparatus Next, the hip joint unloader inspection apparatus 4 that measures the movable range of the hip joint to which the above-described hip joint unloader 2 is attached will be described.
図１に示したように、この股関節免荷具検査装置４は、腸骨、坐骨及び恥骨からなる寛骨の中央に位置する寛骨臼と大腿骨骨頭67とから構成された股関節６を有する人体骨格模型３と、この人体骨格模型３の腰椎８に装着され、人体骨格模型３を支持する骨格模型支持手段７と、人体骨格模型３に設けられ、股関節６の可動域を測定する６自由度電気角度計９とから構成されている。 As shown in FIG. 1, this hip joint unloading device inspection apparatus 4 has a hip joint 6 composed of an acetabulum and a femoral head 67 located in the center of the acetabulum consisting of the iliac bone, sciatic bone and pubic bone. A human skeleton model 3, a skeleton model support means 7 that is attached to the lumbar vertebra 8 of the human skeleton model 3 and supports the human skeleton model 3, and is provided on the human skeleton model 3 and has 6 freedoms for measuring the range of motion of the hip joint 6. It is composed of a degree electrical angle meter 9.
この場合、股関節免荷具検査装置４は、装置本体70内の底部に関節移動手段としての基台71が設けられ、この基台71上に人体骨格模型３の大腿骨65の大腿骨顆部が載置された構成を有する。 In this case, the hip joint unloader inspection apparatus 4 is provided with a base 71 as a joint moving means at the bottom of the apparatus main body 70, and the femoral condyles of the femur 65 of the human skeleton model 3 on the base 71. Is mounted.
ここで人体骨格模型３は、ほぼ球状でなる大腿骨骨頭67が寛骨臼に嵌め込まれ、実際に人体にある股関節と同じように大腿骨骨頭67が摺動面を介して寛骨臼で可動し得るように構成されており、この股関節６を跨ぐようにして股関節免荷具２が取り付けられる。 Here, in the human skeleton model 3, the femoral head 67 having a substantially spherical shape is fitted into the acetabulum, and the femoral head 67 is movable in the acetabulum through the sliding surface in the same manner as the hip joint in the human body. The hip joint unloader 2 is attached so as to straddle the hip joint 6.
かかる構成に加えて人体骨格模型３には、股関節６及び股関節免荷具２を跨ぐように６自由度電気角度計９が設けられている。 In addition to this configuration, the human skeleton model 3 is provided with a 6-degree-of-freedom electric angle meter 9 so as to straddle the hip joint 6 and the hip joint loader 2.
６自由度電気角度計９は、図４に示すように、第１の固定部72に設けられた支持棒73を人体骨格模型３の腸骨66に突き刺すことにより当該第１の固定部72を上前腸骨棘74付近に配置し得る。 As shown in FIG. 4, the six-degree-of-freedom electric goniometer 9 pierces the iliac 66 of the human skeleton model 3 by piercing the support rod 73 provided on the first fixing portion 72 so that the first fixing portion 72 is inserted. It may be placed near the superior anterior iliac spine 74.
なお、第１の固定部72は、支持棒73を腸骨66に突き刺す程度を適宜調節することにより、上前腸骨棘付近に第１の固定部72を容易に、かつ確実に配置し得るようになされている。 In addition, the 1st fixing | fixed part 72 can arrange | position the 1st fixing | fixed part 72 easily and reliably in the vicinity of the upper anterior iliac spine by adjusting suitably the extent which pierces the support rod 73 to the iliac 66. It is made like that.
また６自由度電気角度計９は、第１の固定部72と回動測定機構75を介して第２の固定部76が設けられており、この第２の固定部76が図示しないねじによって大腿骨65に固定され得る。 The 6-degree-of-freedom electric goniometer 9 is provided with a second fixing portion 76 via a first fixing portion 72 and a rotation measuring mechanism 75, and the second fixing portion 76 is thighed by a screw (not shown). Can be secured to the bone 65.
回動測定機構75は、互いに直交するＸ軸、Ｙ軸及びＺ軸の３軸方向の並進変位（３自由度）を電気的に測定するとともに、各３軸方向の各軸回りの回転変位（３自由度）を電気的に測定し、これら合計６自由度の変位の測定結果を同時に得られるように構成されている。 The rotation measuring mechanism 75 electrically measures the translational displacement (three degrees of freedom) of the X axis, the Y axis, and the Z axis that are orthogonal to each other, and rotational displacement about each axis in each of the three axis directions ( 3 degrees of freedom) are electrically measured, and the displacement measurement results of these 6 degrees of freedom are obtained simultaneously.
実際上、回動測定機構75には、連結部材80a，80bに回動軸をＺ方向に有する第１の回動部81（第１の固定部72側の連結部材80aに有する第１の回動部は図示せず）と、連結部材80a，80bにそれぞれ設けられ、回動軸をＸ軸方向に有する第２の回動部82a，82bと、連結アーム部材83a，83bにそれぞれ設けられ、回動軸をＹ軸方向に有する第３の回動部84a，84b，84cとを有し、これにより６自由度の変位を電気的に測定し得る。 In practice, the rotation measuring mechanism 75 includes a first rotation portion 81 (a first rotation included in the connection member 80a on the first fixed portion 72 side) having a rotation axis in the Z direction on the connection members 80a and 80b. A moving portion is provided on each of the connecting members 80a and 80b, the second rotating portions 82a and 82b having the rotating shaft in the X-axis direction, and the connecting arm members 83a and 83b, respectively. It has the 3rd rotation part 84a, 84b, 84c which has a rotation axis in a Y-axis direction, and can thereby measure a 6-degree-of-freedom displacement electrically.
かくして、回動測定機構75は、大腿骨65に固定した第２の固定部76について６自由度での変位を測定することにより、股関節６を屈曲、伸展、内転、外転、内旋及び外旋させたときの角度を測定し得るようになされている。 Thus, the rotation measuring mechanism 75 measures the displacement with six degrees of freedom with respect to the second fixing portion 76 fixed to the femur 65, thereby bending, extending, abduction, abduction, abduction, and rotation of the hip joint 6. The angle when rotating externally can be measured.
回動測定機構75は、第１の回動部81、第２の回動部82a，82b及び第３の回動部84a，84b，84cからそれぞれ得られた可動測定結果を可動測定データとしてパーソナルコンピュータ５に有線10を介して送出し、当該パーソナルコンピュータ５の通知手段としての表示部11に表示させ得るようになされている。 The rotation measurement mechanism 75 uses the movable measurement results obtained from the first rotation unit 81, the second rotation units 82a and 82b, and the third rotation units 84a, 84b, and 84c as personal measurement data. The data can be sent to the computer 5 via the wire 10 and displayed on the display unit 11 as a notification means of the personal computer 5.
ここで６自由度電気角度計９が取り付けられる人体骨格模型３は、図１に示すように、骨格模型支持手段７によって支持されている。 Here, the human skeleton model 3 to which the 6-degree-of-freedom electric angle meter 9 is attached is supported by a skeleton model support means 7 as shown in FIG.
この骨格模型支持手段７は、装置本体70内の上部に設けられ、人体骨格模型３の腰椎８に装着された構成を有する。 This skeletal model support means 7 is provided in the upper part of the apparatus main body 70 and has a configuration in which it is mounted on the lumbar vertebra 8 of the human skeleton model 3.
ここで骨格模型支持手段７は、装置本体86に一体形成された支持部材87と、この支持部材87にヒンジ部88を介して連結された保持部材89とから構成されており、保持部材89の先端に人体骨格模型３の腰椎８が固定され、これによりヒンジ部88を介して保持部材89の角度を調節することにより、人体骨格模型３の腸骨66の角度を任意に選定でき、これにより股関節を屈曲及び伸展させ得るように構成されている。 Here, the skeletal model support means 7 includes a support member 87 formed integrally with the apparatus main body 86, and a holding member 89 connected to the support member 87 via a hinge portion 88. The lumbar vertebra 8 of the human skeleton model 3 is fixed at the tip, and by adjusting the angle of the holding member 89 via the hinge portion 88, the angle of the iliac 66 of the human skeleton model 3 can be arbitrarily selected. The hip joint is configured to bend and extend.
（４）動作及び効果
以上の構成において、股関節免荷具用可動評価システム１では、先ず初めにユーザが任意に選択した股関節免荷具２の大腿骨固定部16を人体骨格模型３の大腿骨65に固定するとともに、腸骨66にボルト20を介して腸骨固定部12を固定し、これにより股関節免荷具２が股関節６を跨ぐように取り付けられ、股関節免荷具２の腸骨固定部12、アーム部14及び大腿骨固定部16によって人体骨格模型３の腸骨55から大腿骨65までを直接連結する。
(4) Operation and effect In the above-described movable evaluation system 1 for hip joint loader, the femoral fixing part 16 of the hip joint loader 2 arbitrarily selected by the user is used as the femur of the human skeleton model 3. In addition to fixing to the iliac 66, the iliac fixation part 12 is fixed to the iliac 66 via the bolt 20, whereby the hip joint loader 2 is attached so as to straddle the hip joint 6, and the hip joint loader 2 is fixed to the iliac bone. The iliac bone 55 to the femur 65 of the human skeleton model 3 are directly connected by the portion 12, the arm portion 14, and the femur fixing portion 16.
このとき、股関節免荷具検査装置４では、骨格模型支持手段７によって人体骨格模型３を支持し、これにより一般的な成人が直立位のときの状態を実現する。 At this time, the hip joint unloader inspection device 4 supports the human skeleton model 3 by the skeleton model support means 7, thereby realizing a state in which a general adult is in an upright position.
そして、股関節免荷具検査装置４では、基台71を移動させることにより人体骨格模型３の大腿骨65を移動させ、股関節６を屈曲、伸展、内転、外転、内旋及び外旋させる。 In the hip joint unloader inspection apparatus 4, the femur 65 of the human skeleton model 3 is moved by moving the base 71, and the hip joint 6 is bent, extended, adduction, abduction, internal rotation, and external rotation. .
そして、股関節免荷具検査装置４では、股関節６を屈曲、伸展、内転、外転、内旋及び外旋させたときの６自由度での各角度を６自由度電気角度計９によって電気的に測定し、その可動域測定結果を可動域測定データとしてパーソナルコンピュータ５に順次送出する。 In the hip joint unloader inspection device 4, each angle in six degrees of freedom when the hip joint 6 is bent, extended, adduction, abduction, internal rotation and external rotation is electrically converted by a 6-degree-of-freedom electric angle meter 9. The range of motion measurement results are sequentially transmitted to the personal computer 5 as range of motion measurement data.
これによりパーソナルコンピュータ５では、図５に示すように、股関節免荷具２（図中の例えばＴｙｐｅＡ）を取り付けた股関節６について６自由度電気角度計９によって得られた可動域測定結果が、屈曲、伸展、内転、外転、内旋及び外旋毎にそれぞれ棒グラフにて表示部11に表示され、これよりユーザは股関節免荷具２を取り付けたときの股関節６の可動域をユーザに対して瞬時に認識できる。 Thereby, in the personal computer 5, as shown in FIG. 5, the range of motion measurement result obtained by the 6-degree-of-freedom electric angle meter 9 for the hip joint 6 to which the hip joint loader 2 (for example, Type A in the figure) is attached is bent. , Extension, adduction, abduction, internal rotation and external rotation are each displayed on the display unit 11 as a bar graph, and the user can determine the range of motion of the hip joint 6 when the hip joint loader 2 is attached to the user. Can be recognized instantly.
かくして股関節免荷具用可動評価システム１では、股関節免荷具２が日常生活で各種動作を行なえるような股関節の最適な可動域を確保できる股関節免荷具か否かを容易に判断できる。 Thus, in the hip joint loader mobility evaluation system 1, it is possible to easily determine whether or not the hip joint loader 2 is a hip joint loader that can secure an optimal range of motion of the hip joint that can perform various operations in daily life.
そして、股関節免荷具検査装置４では、股関節免荷具２の他に、例えば自在継手を設けて可動性の制限を少なくした図示しない股関節免荷具（以下、これを単に股関節免荷具ＴｙｐｅＢと呼ぶ）や、人体骨格模型３の姿勢によらずに免荷能力を発揮するように可動機構を配置した図示しない股関節免荷具（以下、これを単に股関節免荷具ＴｙｐｅＣと呼ぶ）を順次人体骨格模型３に取り付け、これら股関節免荷具ＴｙｐｅＢ及びＴｙｐｅＣを取り付けたときの股関節６についてそれぞれ可動域を６自由度電気角度計９によって測定し、これを可動域測定データとしてパーソナルコンピュータ５へ送出する。 In the hip joint unloader inspection apparatus 4, in addition to the hip joint unloader 2, for example, a hip joint unloader (not shown) in which a universal joint is provided to reduce the restriction on mobility (hereinafter simply referred to as a hip joint unloader Type B). Or a hip joint unloading device (not shown) in which a movable mechanism is arranged so as to exert the load unloading ability irrespective of the posture of the human skeleton model 3 (hereinafter simply referred to as a hip joint unloading device Type C). The range of motion of the hip joint 6 attached to the human skeleton model 3 and the hip joint loaders Type B and Type C is measured by a 6-degree-of-freedom electric goniometer 9 and sent to the personal computer 5 as the range of motion measurement data. To do.
これによりパーソナルコンピュータ５では、股関節免荷具２や他の股関節免荷具ＴｙｐｅＢ及びＴｙｐｅＣについての全ての可動域測定結果が、棒グラフにて同時に表示部11に表示され、これよりユーザは股関節免荷具２や他の股関節免荷具ＴｙｐｅＢ及びＴｙｐｅＣの各可動能力を容易に比較して評価できる。 As a result, the personal computer 5 displays all the range-of-motion measurement results for the hip joint loader 2 and other hip joint loaders Type B and Type C simultaneously on the display unit 11 as a bar graph. It is possible to easily compare and evaluate the respective movable capacities of the tool 2 and other hip joint load-free tools Type B and Type C.
これに加えて股関節免荷具検査装置４では、骨格模型支持手段７にヒンジ部88を設け、当該ヒンジ部88を介して人体骨格模型３の股関節の角度を適宜調節することができるようにしたことにより、直立位だけでなく、股関節６を屈曲させた状態や伸展させた状態等の各種状態を再現でき、この各種状態において股関節免荷具２を取り付けた股関節６がどの程度可動できるか否かについても６自由度電気角度計９によって容易に測定できる。 In addition to this, in the hip joint unloader inspection device 4, the skeleton model support means 7 is provided with a hinge portion 88, and the angle of the hip joint of the human skeleton model 3 can be adjusted as appropriate via the hinge portion 88. Thus, not only the upright position, but also various states such as the bent state and the extended state of the hip joint 6 can be reproduced, and to what extent the hip joint 6 to which the hip joint loader 2 is attached can be moved in these various states. This can be easily measured by the 6 degree-of-freedom electric angle meter 9.
以上の構成によれば、人体骨格模型３の股関節６に股関節免荷具２を跨がせて取り付け、股関節６の可動域を６自由度電気角度計９によって測定するようにしたことにより、当該６自由度電気角度計９によって得られた可動域測定結果に基づいて股関節免荷具２を股関節６に取り付けたときに股関節６をどの程度可動できるか否かについて容易に認識させることができ、かくして股関節免荷具２の可動能力を容易に評価できる。 According to the above configuration, the hip joint loader 2 is attached to the hip joint 6 of the human skeleton model 3 and the range of motion of the hip joint 6 is measured by the 6-degree-of-freedom electric angle meter 9. Based on the range of motion measurement result obtained by the 6-degree-of-freedom electric angle meter 9, it is possible to easily recognize how much the hip joint 6 can be moved when the hip joint loader 2 is attached to the hip joint 6, Thus, the ability to move the hip joint loader 2 can be easily evaluated.
また、股関節６を所定方向に移動可能な基台71を設けるようにしたことにより、各種状態に股関節６を確実に可動させることができ、かくして股関節免荷具２を股関節６に取り付けたときに股関節６がどの程度可動できるか否かを６自由度電気角度計９によって容易に測定できる。 Further, by providing the base 71 capable of moving the hip joint 6 in a predetermined direction, the hip joint 6 can be reliably moved in various states, and thus when the hip joint loader 2 is attached to the hip joint 6. The degree of movement of the hip joint 6 can be easily measured by the 6-degree-of-freedom electric angle meter 9.
さらに、６自由度の角度を測定可能に構成されている６自由度電気角度計９を股関節６に設けるようにしたことにより、股関節免荷具２を取り付けた股関節６がどの程度可動するか否かを認識でき、かくして壊死を生じた大腿骨骨頭への負担を軽減するための股関節免荷具２の可動能力について容易に評価できる。 Further, by providing the hip joint 6 with the six-degree-of-freedom electric goniometer 9 configured to measure an angle of six degrees of freedom, how much the hip joint 6 to which the hip joint loader 2 is attached moves. Therefore, it is possible to easily evaluate the movable ability of the hip joint loader 2 for reducing the burden on the femoral head in which necrosis has occurred.
さらに、６自由度電気角度計９をパーソナルコンピュータ５に電気的に接続する接続手段を備え、前記測定手段で得られた可動域測定データを接続手段としての有線10を介して電気的に接続するようにしたことにより、パーソナルコンピュータ５の表示部11に６自由度電気角度計９によって得られた可動域測定結果を表示させ、これにより可動域測定結果に基づいてユーザに対し股関節免荷具２の可動能力について容易に評価させることができる。 Furthermore, a connection means for electrically connecting the six-degree-of-freedom electric angle meter 9 to the personal computer 5 is provided, and the movable range measurement data obtained by the measurement means is electrically connected via the wire 10 as the connection means. By doing so, the range-of-motion measurement result obtained by the six-degree-of-freedom electric angle meter 9 is displayed on the display unit 11 of the personal computer 5, whereby the hip joint unloader 2 is displayed to the user based on the range-of-motion measurement result. It is possible to easily evaluate the movable ability.
なお、本発明は上記した実施例に限定されるものではなく、本発明の特許請求の範囲に記載した事項の範囲内で種々の変形実施をすることができ、骨格模型として各種動物の骨格模型を用いても良く、また関節として膝関節や肩関節等の各種関節を適用するようにしても良い。 The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the matters described in the claims of the present invention. In addition, various joints such as knee joints and shoulder joints may be applied as joints.
さらに、上述した実施の形態においては、装置本体70内の底部に基台71を単に設けるようにした場合について述べたが、本発明はこれに限らず、装置本体70内の底部に股関節６を屈曲、伸展、内転、外転、内旋及び外旋させるように延びるレールを設け、このレール上に基台71を移動可能に設けるようにして良い。この場合、基台71をレールに沿って移動させるだけで股関節６を確実に屈曲、伸展、内転、外転、内旋及び外旋させることができ、かくして基台71の移動方向を調整する作業を省くことができるので、その分ユーザの作業負担を軽減できる。 Furthermore, in the above-described embodiment, the case where the base 71 is simply provided at the bottom in the apparatus main body 70 has been described. However, the present invention is not limited thereto, and the hip joint 6 is provided at the bottom in the apparatus main body 70. A rail extending so as to bend, extend, add and rotate, add and rotate, and the base 71 may be movably provided on the rail. In this case, the hip joint 6 can be reliably bent, extended, inward, external, internal and external by simply moving the base 71 along the rail, and thus the movement direction of the base 71 is adjusted. Since the work can be omitted, the work burden on the user can be reduced accordingly.
さらに、上述した実施の形態においては、測定手段として６自由度電気角度計９を適用するようにした場合について述べたが、本発明はこれに限らず、要は股関節免荷具２を跨がせて取り付けた股関節６の可動域を測定できれば良く、この他種々の測定手段を適用するようにしても良い。 Furthermore, in the above-described embodiment, the case where the 6-degree-of-freedom electric angle meter 9 is applied as the measuring means has been described. However, the present invention is not limited to this, and the point is that the hip joint unloader 2 is straddled. It is only necessary to be able to measure the range of motion of the hip joint 6 that is attached, and various other measuring means may be applied.
さらに、上述した実施の形態においては、パーソナルコンピュータ５の通知手段として表示部11を適用するようにした場合について述べたが、本発明はこれに限らず、スピーカ等この他種々の通知手段を適用するようにしても良く、この場合、ユーザはスピーカから出力される音声等によって股関節免荷具検査装置４の測定結果を認識することができる。 Further, in the above-described embodiment, the case where the display unit 11 is applied as the notification unit of the personal computer 5 has been described. However, the present invention is not limited to this, and various other notification units such as a speaker are applied. In this case, the user can recognize the measurement result of the hip joint unloader inspection device 4 based on the sound output from the speaker.
２ 股関節免荷具
３ 人体骨格模型（骨格模型）
４ 股関節免荷具検査装置（関節免荷具検査装置）
５ パーソナルコンピュータ（情報処理装置）
９ ６自由度電気角度計（測定手段）
10 有線（接続手段）
71 基台（関節移動手段）
2 Hip joint loader 3 Human skeleton model (skeleton model)
4. Hip joint loader inspection device (joint loader inspection device)
5 Personal computer (information processing equipment)
9 6 degrees of freedom electrical angle meter (measuring means)
10 Wired (connection method)
71 Base (joint movement means)
Claims (3)
前記関節免荷具を跨がせた前記関節模型の可動域を測定する測定手段とを備え、
前記測定手段は、
前記一の骨模型に固定した第１の固定部と、前記他の骨模型に固定した第２の固定部と、前記第１の固定部及び前記第２の固定部間に設けられ、前記関節模型を跨ぐように配置された回動測定機構とからなり、
前記回動測定機構は、
互いに直交するＸ軸、Ｙ軸及びＺ軸の３軸方向の並進変位と、各前記３軸方向の各軸回りの回転変位とを測定することにより、前記関節免荷具が取り付けられた状態で前記関節模型の可動域を測定する
ことを特徴とする関節免荷具検査装置。 When one end side of the joint loader is fixed to one bone model, the other end side of the joint loader is fixed to the other bone model, and the connecting portion of the one bone model and the other bone model A skeletal model having a configuration to which the joint loader can be attached so as to straddle the joint model ,
Measuring means for measuring the range of motion of the joint model straddling the joint loader ,
The measuring means includes
A first fixing portion fixed to the one bone model; a second fixing portion fixed to the other bone model; and the joint between the first fixing portion and the second fixing portion. It consists of a rotation measurement mechanism arranged so as to straddle the model,
The rotation measuring mechanism is
By measuring the translational displacement in the three axial directions of the X axis, the Y axis, and the Z axis orthogonal to each other, and the rotational displacement around each axis in each of the three axial directions, the joint loader is attached. Measure the range of motion of the joint model
A joint-free device inspection device characterized by that.
前記他の骨模型を所定方向に移動させる関節移動手段が底部に設けられた装置本体を備え、
前記骨格模型は、前記一の骨模型が腸骨模型であり、前記他の骨模型が大腿骨模型であり、前記関節模型が股関節模型であって、
前記骨格模型支持手段は、
前記装置本体に一体形成された支持部材と、該支持部材にヒンジ部を介して連結された保持部材とからなり、前記保持部材に前記骨格模型の腰椎模型が固定され、前記ヒンジ部により前記腸骨模型の角度が選定可能に構成されている
ことを特徴とする請求項１記載の関節免荷具検査装置。 With the skeleton model support means for supporting the skeleton model provided at the top,
A joint moving means for moving the other bone model in a predetermined direction comprises an apparatus main body provided at the bottom;
In the skeleton model, the one bone model is an iliac model, the other bone model is a femoral model, and the joint model is a hip joint model,
The skeletal model support means is
A support member integrally formed with the apparatus main body, and a holding member connected to the support member via a hinge portion, and the lumbar model of the skeletal model is fixed to the holding member; The joint loader inspection apparatus according to claim 1 , wherein the angle of the bone model is selectable .
前記測定手段によって得られた可動域測定データを基に、前記股関節模型を屈曲、伸展、内転、外転、内旋及び外旋させたときの各可動域測定結果を前記表示部に表示させる
ことを特徴とする請求項２記載の関節免荷具検査装置。
The measurement unit includes a connection unit that is electrically connected to an information processing device having a display unit, and sends the range of motion measurement data obtained by the measurement unit to the information processing device via the connection unit ,
Based on the range of motion measurement data obtained by the measurement means, the range of motion measurement results when the hip joint model is bent, extended, adduction, abduction, internal rotation and external rotation are displayed on the display unit. The joint unloader inspection apparatus according to claim 2 .
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| US9278004B2 (en) | 2009-08-27 | 2016-03-08 | Cotera, Inc. | Method and apparatus for altering biomechanics of the articular joints |
| US10349980B2 (en) | 2009-08-27 | 2019-07-16 | The Foundry, Llc | Method and apparatus for altering biomechanics of the shoulder |
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| JP5936111B2 (en) * | 2011-12-30 | 2016-06-15 | 国立大学法人 岡山大学 | Range of motion prediction device for joint pairs |
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| LAPS | Cancellation because of no payment of annual fees |