Multi-Keel Passive Prosthetic Foot Design Optimization Using the Lower Leg Trajectory Error Framework
People with lower-limb amputation in low- and middle-income countries (LMICs) lack access to adequate prosthetic devices that would restore their mobility and increase their quality of life. This is largely due to the cost and durability of existing devices. Single-keel energy storage and return (ES...
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| 格式: | Article |
| 語言: | English |
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ASME International
2024
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| 在線閱讀: | https://hdl.handle.net/1721.1/154898 |
| _version_ | 1826191339831689216 |
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| author | Prost, Victor Peterson, Heidi V Winter V, Amos G |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Prost, Victor Peterson, Heidi V Winter V, Amos G |
| author_sort | Prost, Victor |
| collection | MIT |
| description | People with lower-limb amputation in low- and middle-income countries (LMICs) lack access to adequate prosthetic devices that would restore their mobility and increase their quality of life. This is largely due to the cost and durability of existing devices. Single-keel energy storage and return (ESR) prosthetic feet have recently been developed using the lower leg trajectory error (LLTE) design framework to provide improved walking benefits at an affordable cost in LMICs. The LLTE framework optimizes the stiffness and geometry of a user’s prosthesis to match a target walking pattern by minimizing the LLTE value, a measure of how closely a prosthetic foot replicates a target walking pattern. However, these low-cost single-keel prostheses do not provide the required durability to fulfill International Standards Organization (ISO) testing, preventing their widespread use and adoption. Here, we developed a multi-keel foot parametric model and extended the LLTE framework to include the multi-keel architecture and durability requirements. Multi-keel designs were shown to provide 76% lower LLTE values, compared with single-keel designs while withstanding ISO fatigue and static tests, validating their durability. Given their single-part 2D extruded geometries, multi-keel feet designed with the extended LLTE framework could be cost-effectively manufactured, providing affordable and durable high-performance prostheses that improve the mobility of LMIC users. |
| first_indexed | 2024-09-23T08:54:24Z |
| format | Article |
| id | mit-1721.1/154898 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2025-02-19T04:17:36Z |
| publishDate | 2024 |
| publisher | ASME International |
| record_format | dspace |
| spelling | mit-1721.1/1548982024-12-23T06:00:12Z Multi-Keel Passive Prosthetic Foot Design Optimization Using the Lower Leg Trajectory Error Framework Prost, Victor Peterson, Heidi V Winter V, Amos G Massachusetts Institute of Technology. Department of Mechanical Engineering People with lower-limb amputation in low- and middle-income countries (LMICs) lack access to adequate prosthetic devices that would restore their mobility and increase their quality of life. This is largely due to the cost and durability of existing devices. Single-keel energy storage and return (ESR) prosthetic feet have recently been developed using the lower leg trajectory error (LLTE) design framework to provide improved walking benefits at an affordable cost in LMICs. The LLTE framework optimizes the stiffness and geometry of a user’s prosthesis to match a target walking pattern by minimizing the LLTE value, a measure of how closely a prosthetic foot replicates a target walking pattern. However, these low-cost single-keel prostheses do not provide the required durability to fulfill International Standards Organization (ISO) testing, preventing their widespread use and adoption. Here, we developed a multi-keel foot parametric model and extended the LLTE framework to include the multi-keel architecture and durability requirements. Multi-keel designs were shown to provide 76% lower LLTE values, compared with single-keel designs while withstanding ISO fatigue and static tests, validating their durability. Given their single-part 2D extruded geometries, multi-keel feet designed with the extended LLTE framework could be cost-effectively manufactured, providing affordable and durable high-performance prostheses that improve the mobility of LMIC users. 2024-05-10T13:58:53Z 2024-05-10T13:58:53Z 2023-08-01 2024-05-10T13:56:36Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/154898 Prost, Victor, Peterson, Heidi V and Winter V, Amos G. 2023. "Multi-Keel Passive Prosthetic Foot Design Optimization Using the Lower Leg Trajectory Error Framework." Journal of Mechanisms and Robotics, 15 (4). en 10.1115/1.4055107 Journal of Mechanisms and Robotics Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf ASME International ASME |
| spellingShingle | Prost, Victor Peterson, Heidi V Winter V, Amos G Multi-Keel Passive Prosthetic Foot Design Optimization Using the Lower Leg Trajectory Error Framework |
| title | Multi-Keel Passive Prosthetic Foot Design Optimization Using the Lower Leg Trajectory Error Framework |
| title_full | Multi-Keel Passive Prosthetic Foot Design Optimization Using the Lower Leg Trajectory Error Framework |
| title_fullStr | Multi-Keel Passive Prosthetic Foot Design Optimization Using the Lower Leg Trajectory Error Framework |
| title_full_unstemmed | Multi-Keel Passive Prosthetic Foot Design Optimization Using the Lower Leg Trajectory Error Framework |
| title_short | Multi-Keel Passive Prosthetic Foot Design Optimization Using the Lower Leg Trajectory Error Framework |
| title_sort | multi keel passive prosthetic foot design optimization using the lower leg trajectory error framework |
| url | https://hdl.handle.net/1721.1/154898 |
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