Method of measuring the performance of a prosthetic foot
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01D-007/00
출원번호
UP-0184011
(2004-09-20)
등록번호
US-7581454
(2009-09-16)
발명자
/ 주소
Clausen, Arinbjörn V.
De Roy, Kim
출원인 / 주소
Össur hf
대리인 / 주소
Knobbe, Martens, Olson & Bear LLP
인용정보
피인용 횟수 :
41인용 특허 :
59
초록▼
A method of measuring the performance of a prosthetic foot includes obtaining a pressure distribution of the prosthetic foot during a motion of the prosthetic foot and determining whether the pressure distribution falls within a preselected range of performance values for the prosthetic foot. The p
A method of measuring the performance of a prosthetic foot includes obtaining a pressure distribution of the prosthetic foot during a motion of the prosthetic foot and determining whether the pressure distribution falls within a preselected range of performance values for the prosthetic foot. The pressure distribution comprises a trajectory illustrating the progression of a center of pressure of the prosthetic foot during motion. A prosthetic foot can also be designed to approximate a pressure distribution corresponding to a preselected range of performance values.
대표청구항▼
What is claimed is: 1. A method of comparing the performance of prosthetic feet, comprising: obtaining a pressure distribution of a first prosthetic foot, said pressure distribution defining a first trajectory; obtaining a pressure distribution of a second prosthetic foot, said pressure distributio
What is claimed is: 1. A method of comparing the performance of prosthetic feet, comprising: obtaining a pressure distribution of a first prosthetic foot, said pressure distribution defining a first trajectory; obtaining a pressure distribution of a second prosthetic foot, said pressure distribution defining a second trajectory; comparing said first trajectory with said second trajectory; and determining which of said first and second prosthetic feet has a superior performance based on said comparison. 2. The method of claim 1, wherein said comparison of said first and second trajectories includes comparing the smoothness of said trajectories. 3. The method of claim 1, wherein said first and second trajectories comprise a plurality of pressure points, and wherein said comparison of said first and second trajectories includes comparing the frequency of said pressure points. 4. The method of claim 1, wherein said first and second trajectories comprise a plurality of pressure points, and wherein said comparison of said first and second trajectories includes comparing the spacing of said pressure points. 5. The method of claim 1, wherein determining which of said first and second prosthetic feet has a superior performance includes determining which of the first and second prosthetic feet has a rollover performance that approximates the rollover performance of a human foot. 6. The method of claim 1, wherein the pressure distributions are measured via a surface incorporating a plurality of sensors, wherein the first and second prosthetic foot moves over the surface, said sensors sensing a force exerted by at least a portion of the first and second prosthetic foot on the surface, the sensors communicating said sensed force to a computer. 7. The method of claim 1, further comprising displaying the pressure distribution of at least one of the first and second prosthetic feet. 8. The method of claim 7, wherein said display includes an image of a sole portion of the at least one of the first and second prosthetic feet. 9. The method of claim 7, wherein the display comprises a trajectory of a center of pressure of the at least one of the first and second prosthetic feet during motion of the at least one of the first and second prosthetic feet. 10. The method of claim 9, wherein said trajectory corresponds to a rollover profile of the at least one of the first and second prosthetic feet between a heel-strike position and a toe-off position of said motion. 11. A method of comparing the performance of a prosthetic foot and a human foot, comprising: obtaining a pressure distribution of a human foot, said pressure distribution defining a first trajectory; obtaining a pressure distribution of a prosthetic foot, said pressure distribution defining a second trajectory; comparing said first trajectory with said second trajectory; and determining a performance rating for the prosthetic foot based on said comparison. 12. The method of claim 11, wherein said comparison of said first and second trajectories includes comparing the smoothness of said trajectories. 13. The method of claim 11, wherein said first and second trajectories comprise a plurality of pressure points, and wherein said comparison of said first and second trajectories includes comparing the frequency of said pressure points. 14. The method of claim 11, wherein said first and second trajectories comprise a plurality of pressure points, and wherein said comparison of said first and second trajectories includes comparing the spacing of said pressure points. 15. The method of claim 11, wherein determining said performance rating includes determining whether the prosthetic foot has a rollover performance that approximates the rollover performance of the human foot. 16. The method of claim 11, further comprising displaying an image of the prosthetic foot, wherein the image of the prosthetic foot includes an image of a sole of the prosthetic foot. 17. The method of claim 16, further comprising displaying the pressure distribution of the prosthetic foot during motion of the prosthetic foot. 18. The method of claim 17, wherein the pressure distribution of the prosthetic foot is displayed on the image of the prosthetic foot. 19. The method of claim 17, wherein the motion of the prosthetic foot includes a posterior-anterior motion. 20. The method of claim 11, further comprising displaying the pressure distribution of the human foot during motion of the human foot. 21. The method of claim 20, wherein the pressure distribution of the human foot is displayed on an image of the human foot.
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이 특허에 인용된 특허 (59)
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Herr, Hugh M.; Au, Kwok Wai Samuel; Paluska, Daniel Joseph; Dilworth, Peter, Artificial ankle-foot system with spring, variable-damping, and series-elastic actuator components.
Herr, Hugh M.; Au, Kwok Wai Samuel; Paluska, Daniel Joseph; Dilworth, Peter, Artificial ankle-foot system with spring, variable-damping, and series-elastic actuator components.
Herr, Hugh Miller; Casler, Jr., Richard J.; Han, Zhixiu; Barnhart, Christopher Eric; Girzon, Gary, Controlling power in a prosthesis or orthosis based on predicted walking speed or surrogate for same.
Herr, Hugh M.; Casler, Rick; Nook, Christopher M.; Margolin, Alexander S.; Size, Kristin J.; Kowalczyk, Matthew T.; Spaller, Robert W.; Thompson, Gregory K.; Dalrymple, Timothy M.; Kessler, Seth S.; Murray, David W.; Barnhart, Christopher E., Hybrid terrain-adaptive lower-extremity systems.
Herr, Hugh M.; Casler, Rick; Nook, Christopher M.; Margolin, Alexander S.; Size, Kristin J.; Kowalczyk, Matthew T.; Spaller, Robert W.; Thompson, Gregory K.; Dalrymple, Timothy M.; Kessler, Seth S.; Murray, David W.; Barnhart, Christopher E., Hybrid terrain-adaptive lower-extremity systems.
Herr, Hugh M.; Endo, Ken; Krishnaswamy, Pavitra; Markowitz, Jared; Eilenberg, Michael Frederick; Wang, Jing, Neuromuscular model-based sensing and control paradigm for a robotic leg.
Herr, Hugh M.; Endo, Ken; Krishnaswamy, Pavitra; Markowitz, Jared; Eilenberg, Michael Frederick; Wang, Jing, Neuromuscular model-based sensing and control paradigm for a robotic leg.
Herr, Hugh M.; Weber, Jeff A.; Au, Kwok Wai Samuel; Deffenbaugh, Bruce Wayne; Magnusson, Lee Harris; Hofmann, Andreas G.; Aisen, Benjamin B., Powered ankle-foot prosthesis.
Herr, Hugh M.; Weber, Jeff A.; Au, Samuel K.; Deffenbaugh, Bruce Wayne; Magnusson, Lee Harris; Hofmann, Andreas G.; Aisen, Benjamin B., Powered ankle-foot prothesis.
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