JP3968064B2 - 義足バウンス装置 - Google Patents
義足バウンス装置 Download PDFInfo
- Publication number
- JP3968064B2 JP3968064B2 JP2003298248A JP2003298248A JP3968064B2 JP 3968064 B2 JP3968064 B2 JP 3968064B2 JP 2003298248 A JP2003298248 A JP 2003298248A JP 2003298248 A JP2003298248 A JP 2003298248A JP 3968064 B2 JP3968064 B2 JP 3968064B2
- Authority
- JP
- Japan
- Prior art keywords
- link
- pipe
- bounce device
- lower leg
- knee
- 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.)
- Expired - Fee Related
Links
- 210000002414 leg Anatomy 0.000 claims description 57
- 210000001699 lower leg Anatomy 0.000 claims description 38
- 238000005452 bending Methods 0.000 claims description 37
- 210000003127 knee Anatomy 0.000 claims description 26
- 210000000629 knee joint Anatomy 0.000 claims description 23
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 29
- 210000000689 upper leg Anatomy 0.000 description 20
- 210000002683 foot Anatomy 0.000 description 12
- 230000009471 action Effects 0.000 description 11
- 230000006835 compression Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 230000035939 shock Effects 0.000 description 7
- 230000005484 gravity Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 210000003371 toe Anatomy 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000037396 body weight Effects 0.000 description 2
- 230000005021 gait Effects 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2/60—Artificial legs or feet or parts thereof
- A61F2/64—Knee joints
- A61F2/642—Polycentric joints, without longitudinal rotation
- A61F2/644—Polycentric joints, without longitudinal rotation of the single-bar or multi-bar linkage type
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2002/5003—Prostheses not implantable in the body having damping means, e.g. shock absorbers
- A61F2002/5006—Dampers, e.g. hydraulic damper
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2002/5007—Prostheses not implantable in the body having elastic means different from springs, e.g. including an elastomeric insert
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/50—Prostheses not implantable in the body
- A61F2002/5072—Prostheses not implantable in the body having spring elements
Description
また、前記単軸構造若しくはリンク構造において結合部材と下腿パイプが有することができる角度が20度未満である様に構成されていることを特徴とすることができる。
上記の構成において、リンク構造としては4節リンク構造を用いることができる。弾性体としてはゴムのブロックあるいはバネを用いることができる。
第1に、立脚相での体重心の上下動を抑制し小さくする。膝が完全に固定された義足では、立脚相において着床した足を中心とし義肢の長さを半径とする円弧状に体重心が動いてしまう。これに対して本発明の義足バウンス装置を装着した義足では、立脚相において単軸構造若しくはリンク構造が徐々に屈曲し徐々に進展する動作をする。この動作は膝をわずかに曲げ伸ばしすることに相当し、円弧状の動きを補償する動作となるので、立脚相での体重心の上下動を小さくする。このため、患者の歩行時の乗り越え感を小さくすることができる。また、上下動が小さくなり歩容が良くなる。
第3に、足の着床期の衝撃を緩衝する。
第4に、足底全体が着床する時期が早くなり、歩行の安定が向上する。
第5に、立脚相前半期の大腿部ソケットの屈曲角が増すため股関節伸展筋を働かせ易くなり、前方への推進力を大きく出せるようになる。
2 膝関節
3 結合パイプ
4 下腿パイプ
5 足部
10 単軸義足バウンス装置
11 単軸
12 上部ブロック
13 下部ブロック
15 ストッパ
20 ゴム弾性体
30 4節リンクバウンス装置
35 第1リンク
36 第2リンク
37 第3リンク
38 第4リンク
45 オイルダンパー
47 ピストン
50 圧縮コイルバネ
51 ストッパ
Claims (3)
- 義足の膝関節の直下に配設される義足バウンス装置であって、
膝関節に直結する結合パイプと下腿パイプとが膝折れ方向に角度を持つことができるようにすると共に下腿パイプより前方に回転中心軸を構成する軸構造と、
前記軸構造において下腿パイプが伸展した位置で阻止するストッパと、
前記軸構造において下腿パイプが伸展しストッパに阻止される方向に付勢する弾性体と、
を備えることを特徴とする義足バウンス装置。 - 義足の膝関節の直下に配設される義足バウンス装置であって、
膝関節に直結する結合パイプと下腿パイプとが膝折れ方向に角度を持つことができるようにすると共に下腿パイプより前方に仮想回転中心軸を構成し、
その仮想回転中心軸がリンクの伸展時には下腿パイプのより前方に、リンクの屈曲時には下腿パイプにより近接するように移動するように構成されたリンク構造と、
前記リンク構造において下腿パイプが伸展した位置で阻止するストッパと、
前記リンク構造において下腿パイプが伸展しストッパに阻止される方向に付勢する弾性体と、
を備えることを特徴とする義足バウンス装置。 - 結合パイプと下腿パイプが有することができる角度が20度未満である様に構成されていることを特徴とする請求項1または2に記載の義足バウンス装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003298248A JP3968064B2 (ja) | 2003-08-22 | 2003-08-22 | 義足バウンス装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003298248A JP3968064B2 (ja) | 2003-08-22 | 2003-08-22 | 義足バウンス装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005065895A JP2005065895A (ja) | 2005-03-17 |
JP3968064B2 true JP3968064B2 (ja) | 2007-08-29 |
Family
ID=34403797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003298248A Expired - Fee Related JP3968064B2 (ja) | 2003-08-22 | 2003-08-22 | 義足バウンス装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3968064B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108379038B (zh) * | 2018-01-15 | 2019-07-09 | 浙江大学 | 一种下肢康复外骨骼系统及其步行控制方法 |
JP7390639B2 (ja) | 2019-09-04 | 2023-12-04 | カヤバ株式会社 | 歩行補助装置 |
-
2003
- 2003-08-22 JP JP2003298248A patent/JP3968064B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2005065895A (ja) | 2005-03-17 |
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