Apto-Ankle: Passive, Compliant Ankle with Enhanced Energy Storage and Return in Gait

Apto-Ankle：被动、顺应性踝关节，具有增强的能量存储和步态恢复功能

基本信息

批准号：
10821193
负责人：
Adam Karekin Arabian
金额：
$ 29.35万
依托单位：
ORTHOCARE INNOVATIONS, LLC
依托单位国家：
美国
项目类别：
财政年份：
2023
资助国家：
美国
起止时间：
2023-09-19 至 2024-08-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/10821193
关键词：
Achievement Address Amputees Ankle Anterior Articulation Behavior Clinical Clinical Research Communities Custom Development Electronics Environment Esthesia Feedback Feeling Gait Individual Laboratories Liquid substance Manufacturer Marketing Measurable Measures Mechanics Metabolic Microprocessor Motion Motor Movement Outcome Assessment Patients Performance Phase Phase Transition Prosthesis Prosthesis Design Quality of life Reporting Risk Safety Silicon Dioxide Small Business Innovation Research Grant Specific qualifier value Stress Surveys System Testing Toes Walking Work ankle prosthesis clinical practice cognitive load commercial application cost design design and construction foot improved light weight limb loss mechanical properties novel physical therapist prosthesis fitting prosthesis wearer prosthetic alignment prosthetic foot prototype research clinical testing residual limb safety and feasibility walking speed

Achievement Address Amputees Ankle Anterior Articulation Behavior Clinical Clinical Research Communities Custom Development Electronics Environment Esthesia Feedback Feeling Gait Individual Laboratories Liquid substance Manufacturer Marketing Measurable Measures Mechanics Metabolic Microprocessor Motion Motor Movement Outcome Assessment Patients Performance Phase Phase Transition Prosthesis Prosthesis Design Quality of life Reporting Risk Safety Silicon Dioxide Small Business Innovation Research Grant Specific qualifier value Stress Surveys System Testing Toes Walking Work ankle prosthesis clinical practice cognitive load commercial application cost design design and construction foot improved light weight limb loss mechanical properties novel physical therapist prosthesis fitting prosthesis wearer prosthetic alignment prosthetic foot prototype research clinical testing residual limb safety and feasibility walking speed

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项目摘要

PROJECT SUMMARY The Apto-Ankle project will create a novel low-cost, lightweight, unpowered passive compliant ankle that addresses the weaknesses of currently marketed hydraulic passive ankles by combining +/-10° of plantar and dorsiflexion with a gait dependent toe lock to provide energy storage and return, all without use of microprocessors or powered components. Appropriate for DMERC K-2 and K-3 individuals with transtibial limb loss, it will help them more efficiently and comfortably ambulate in their community environment, providing the documented benefits of passive compliant ankles with a forefoot loading phase transition from energy dissipation in the ankle to energy storage in the dynamic energy storage and return foot. This approach addresses the weaknesses of existing passive compliant ankles without adding the power or complexity of microprocessor-controlled ankles. By mechanically controlling dynamics based on parameters derived from normal ambulation and without additional cognitive burden on users, this design provides a gait and environmentally appropriate transition during stance from compliant, energy dissipation to dynamic energy storage and return. The Apto-Ankle project has three primary aims: 1) design and construction of 3 prototype Apto-Ankles to test adjustable components that determine gait dependent behaviors, both on the bench and on users, 2) bench testing to assess ankle performance against design specifications and confirm safety and robustness prior to clinical evaluation and 3) evaluate the proof-of-concept ankle by appropriately fitting it to users and evaluating it in a gait lab. Primary assessment outcomes will include objective measurable gait parameters and subjective clinical survey feedback from users. Successful design and implementation of the Apto-Ankle will enable individuals with transtibial limb loss to more easily ambulate in their normal community environment, increase stability, and increase amount of and comfort with ambulation in their typical activities and surroundings. The commercial application of Apto-Ankle is a low-cost, K-2 and K-3, lightweight prosthetic ankle that encourages ambulation, independence, and quality of life for transtibial prosthesis users.

项目摘要 Apto-Kankle项目将创建一个新颖的低成本，轻巧，无动力的被动脚踝通过结合+/- 10°足底和背屈，依赖脚趾锁可以提供存储和返回，而无需使用微处理器或动力组件。适合DMERC K-2和K-3肢体损失的人，它将帮助他们更有效，在他们的社区环境中舒适地行动，提供了被动符合性的有记录的好处脚踝具有从脚踝的能量耗散到储能中的脚踝载荷相变动态的能量存储和返回脚。这种方法解决了现有被动的弱点符合脚踝，而无需添加微处理器控制的脚踝的功率或复杂性。通过机械基于源自正常卧床的参数控制动力学，没有其他认知 Burnen对用户，这种设计在立场期间提供了步态和环境适当的过渡合规，能量耗散到动态储能和返回。 Apto-Kankle项目具有三个主要目的：1）设计和构建3个原型apto-kankles测试可调节的组件，这些组件决定步态依赖行为，无论是在板凳上还是在用户上，2）测试以评估针对设计规格的踝关节性能，并在此之前确认安全性和鲁棒性临床评估和3）通过将其适当地拟合给用户评估概念验证踝关节它在步态实验室中。主要评估结果将包括客观可测量的步态参数和用户的主观临床调查反馈。 Apto-kank的成功设计和实施将使肢体损失损失的人能够在其正常社区环境中更轻松地行动，提高稳定性，并在其典型活动中增加救护车的数量和舒适性环境。 Apto-kank的商业应用是低成本的K-2和K-3，轻巧的假肢脚踝这鼓励了三位一体的假体使用者的救护车，独立性和生活质量。