JP2017217039A - 歩行動作補助装置 - Google Patents
歩行動作補助装置 Download PDFInfo
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- JP2017217039A JP2017217039A JP2016111378A JP2016111378A JP2017217039A JP 2017217039 A JP2017217039 A JP 2017217039A JP 2016111378 A JP2016111378 A JP 2016111378A JP 2016111378 A JP2016111378 A JP 2016111378A JP 2017217039 A JP2017217039 A JP 2017217039A
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- 230000033001 locomotion Effects 0.000 title claims abstract description 108
- 210000003108 foot joint Anatomy 0.000 claims abstract description 7
- 210000000544 articulatio talocruralis Anatomy 0.000 claims description 48
- 210000002683 foot Anatomy 0.000 claims description 35
- 238000000926 separation method Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 210000003371 toe Anatomy 0.000 description 33
- 210000002414 leg Anatomy 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 206010033799 Paralysis Diseases 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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Abstract
Description
装着者の足関節の回動動作を補助する歩行動作補助装置であって、
駆動モータと、
前記駆動モータにより前記足関節に対して同軸的に回動動作可能な駆動機構と、
前記駆動モータの駆動制御を行う制御装置と、
歩行周期における時系列的な足関節角度の変化を表す基本動作パターン及び修正動作パターンが記憶される記憶部と、
操作者の入力に基づいて前記基本動作パターンを修正して前記修正動作パターンを得る演算部と、を備え、
前記基本動作パターンは所定の複数点を屈曲点とする折れ線、ベジエ曲線またはこれらの組み合わせで表され、
前記演算部は前記基本動作パターン上の所定の前記複数点の位置調整によって修正された前記修正動作パターンを生成し、
前記制御装置は前記修正動作パターンに基づいて前記駆動モータの駆動を制御する、
ことを特徴とする。
装着者の立位状態時の踵及び爪先の荷重を前記踵側感圧センサ及び前記爪先側感圧センサがそれぞれ検出し、
立位状態時に検出された荷重を基準にして、歩行中の装着者の踵及び爪先の接地及び離地の状態を検出することが好ましい。
一歩の歩行周期の始点、終点をそれぞれ踵接地時、次の踵接地時とし、前記制御装置は、前記回転センサで検出されたn歩目の終点の足関節角度をn+1歩目の始点の足関節角度として、n+1歩目の前記基本動作パターン或いは前記修正動作パターンを調整して前記駆動モータを制御することが好ましい。
(nは正の整数を表す。)
10 足用装具
11A、11B 足部フレーム
12A、12B 頸部フレーム
13 頸部用装具
20 頸部収容ボックス
30 駆動モータ
31 駆動機構
40 制御装置
41 演算部
42 記憶部
43 入力部
50 回転センサ
51 爪先側感圧センサ
52 踵側感圧センサ
60 表示操作装置
70 腰用装具
71 腰部収容ボックス
P1 踵接地及び爪先接地
P2 踵離地
P3 爪先離地
P4 遊脚中期
Claims (7)
- 装着者の足関節の回動動作を補助する歩行動作補助装置であって、
駆動モータと、
前記駆動モータにより前記足関節に対して同軸的に回動動作可能な駆動機構と、
前記駆動モータの駆動制御を行う制御装置と、
歩行周期における時系列的な足関節角度の変化を表す基本動作パターン及び修正動作パターンが記憶される記憶部と、
操作者の入力に基づいて前記基本動作パターンを修正して前記修正動作パターンを得る演算部と、を備え、
前記基本動作パターンは所定の複数点を屈曲点とする折れ線、ベジエ曲線またはこれらの組み合わせで表され、
前記演算部は前記基本動作パターン上の所定の前記複数点の位置調整によって修正された前記修正動作パターンを生成し、
前記制御装置は前記修正動作パターンに基づいて前記駆動モータの駆動を制御する、
ことを特徴とする歩行動作補助装置。 - 前記所定の複数点が歩行周期における踵及び爪先接地時、踵離地時、爪先離地時、及び、遊脚中期に相当する4点である、
ことを特徴とする請求項1に記載の歩行動作補助装置。 - 前記基本動作パターン及び前記修正動作パターンが前記4点を屈曲点とする折れ線で表される、
ことを特徴とする請求項2に記載の歩行動作補助装置。 - 前記制御装置は、前記基本動作パターン或いは前記修正動作パターンに沿って、前記足関節の角速度を制御する、
ことを特徴とする請求項1乃至3のいずれか一項に記載の歩行動作補助装置。 - 装着者の踵の接地及び離地を検出する踵側感圧センサと、爪先の接地及び離地を検出する爪先側感圧センサと、を備え、
装着者の立位状態時の踵及び爪先の荷重を前記踵側感圧センサ及び前記爪先側感圧センサがそれぞれ検出し、
立位状態時に検出された荷重を基準にして、歩行中の装着者の踵及び爪先の接地及び離地の状態を検出する、
ことを特徴とする請求項1乃至4のいずれか一項に記載の歩行動作補助装置。 - 前記踵側感圧センサが装着者の踵の接地を検出した時点から、前記制御装置は歩行周期の始点として前記基本動作パターン或いは前記修正動作パターンに基づいて前記駆動モータの駆動を制御する、
ことを特徴とする請求項5に記載の歩行動作補助装置。 - 装着者の足関節角度を検出する回転センサを備え、
一歩の歩行周期の始点、終点をそれぞれ踵接地時、次の踵接地時とし、前記制御装置は、前記回転センサで検出されたn歩目の終点の足関節角度をn+1歩目の始点の足関節角度として、n+1歩目の前記基本動作パターン或いは前記修正動作パターンを調整して前記駆動モータを制御する、
ことを特徴とする請求項5又は6に記載の歩行動作補助装置。
(nは正の整数を表す。)
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