Multi-Modal Fingertip Sensors for Prosthetic Hand Control and Feedback

用于假手控制和反馈的多模式指尖传感器

• 批准号: 10384800
• 负责人: Jacob Segil
• 金额: $ 27.68万
• 依托单位: POINT DESIGNS, LLC
• 依托单位国家: 美国
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-21 至 2023-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/10384800
• 关键词: Activities of Daily Living; Algorithms; Amputation; Amputees; Back; Calibration; Caring; Clinical; Clinical Trials; Cognitive; Collaborations; Development; Devices; Digit structure; Economics; Engineering; Environment; Esthesia; Feedback; Fingers; Focus Groups; Foundations; Freedom; Funding Opportunities; Future; Goals; Hand; Hand functions; Human; Individual; Industry; Interview; Legal patent; Life Cycle Stages; Limb Prosthesis; Limb structure; Maps; Measurement; Measures; Mechanics; Medical; Methods; Modality; Monitor; Motivation; Motor; Myoelectric prosthesis; Needs Assessment; Nerve; Numbness; Occupational Therapist; Patients; Performance; Peripheral Nerves; Phase; Positioning Attribute; Process; Prosthesis; Research; Research Personnel; Scheme; Sensory; Series; Signal Transduction; Source; Specific qualifier value; System; Tactile; Techniques; Technology; Test Result; Testing; Time; Touch sensation; United States; Upper Extremity; Volition; Work; algorithm development; cognitive load; commercialization; comparative efficacy; design; dexterity; experience; grasp; hand grasp; improved; innovation; limb amputation; multimodality; myoelectric control; personalized approach; prosthesis control; prosthesis wearer; prosthetic hand; psychosocial; relating to nervous system; restoration; sensor; somatosensory; sound; success; teleoperation; visual-vestibular

Multi-Modal Fingertip Sensors for Prosthetic Hand Control and Feedback PROJECT SUMMARY / ABSTRACT The goal of the proposed project is to develop a robust, multi-modal prosthetic fingertip sensor – the Point Touch – which 1) has a patented multi-modal sensing capability including measurement of proximity, contact, and force and 2) can augment myoelectric control methods using semi-autonomous control algorithms. The Point Touch is the next product in Point Designs’ product road map, which began with the Point Digit, a full finger mechanical prosthesis. Since the commercial launch of the Point Digit in 2017, over 1200 digits have been delivered to more than 470 patients. Through our extensive academic and commercial research collaborations we uncovered an opportunity to utilize our multi-modal prosthetic fingertip sensor to improve myoelectric control of prosthetic hands. To answer the frequent request for a fingertip sensor, we will complete the development of the Point Touch through this funding opportunity. Completion of this project will result in a multi-modal fingertip sensor specifically designed to augment existing myoelectric control methods and lay a foundation to restore the sense of touch. The care of people with upper limb amputations requires a highly individualized approach. Prosthetists and occupational therapists work with each patient to provide a personalized medical solution using whatever components and technologies are available on the open market. Very often, the bottleneck in this system is the availability of clinically sound prosthetic components that can be readily sourced by the prosthetists to provide an optimal prosthetic limb system. Today, prosthetic hands are numb. They provide no somatosensory feedback to the user. However, we know that the sensory information provided by the hand is critical to our dexterous capabilities. Many research groups have made great progress in the development of peripheral nerve interfaces and have begun several in-human trials around the world. However, current commercial prosthetic hands cannot measure the interactions with the unconstrained external environment; there are short- and long-term clinical needs for commercially viable prosthetic fingertips. In this Phase 1 effort we propose to 1) perform a User Needs assessment followed by verification through mechanical tests, and 2) enhance existing myoelectric control techniques using the innovative proximity and force sensing capabilities of the Point Touch. This short-term implementation of the Point Touch technology will improve myoelectric control techniques and reduce cognitive burden for users of prosthetic hands. The Phase 1 effort will build towards a larger Phase II project which will test the Point Touch and its algorithmic capabilities in a clinical trial of patients with peripheral nerve interfaces. Combined, these efforts will establish the Point Touch as the leading candidate of prosthetic finger technology to be ready for the commercialization of peripheral nerve interfaces and the restoration of the sense of touch.

用于假手的多模态指尖传感器 控制与反馈 项目概要/摘要 该项目的目标是开发一种强大的多模式假肢指尖传感器——Point Touch – 其中 1) 拥有获得专利的多模式传感功能，包括接近度、接触和力的测量 2) 可以使用半自主控制算法增强肌电控制方法。 是 Point Designs 产品路线图中的下一个产品，该路线图始于 Point Digit，一款全手指机械 自 2017 年 Point Digit 投入商业以来，已有超过 1200 个数字被交付给更多人。 通过我们广泛的学术和商业研究合作，我们发现了超过 470 名患者。 有机会利用我们的多模式假肢指尖传感器来改善肌电 为了满足对指尖传感器的频繁要求，我们将完成 通过此融资机会开发 Point Touch 将产生 多模态指尖传感器专门设计用于增强现有的肌电控制方法并奠定基础 恢复触觉的基础。 上肢截肢患者的护理需要高度个性化的方法。 职业治疗师与每位患者合作，使用任何方法提供个性化的医疗解决方案 通常，该系统的瓶颈是在公开市场上可以获得的组件和技术。 假肢专家可以轻松采购临床上可靠的假肢组件，以提供 最佳的假肢系统。 如今，假手已经麻木了，但我们知道，它们无法向用户提供体感反馈。 许多研究小组认为，手提供的感官信息对于我们的灵巧能力至关重要。 在周围神经接口的开发方面取得了巨大进展，并已开始进行多项人体研究 然而，目前的商业假肢无法测量与世界各地的相互作用。 不受约束的外部环境；商业上可行的短期和长期临床需求 假肢指尖。 在第一阶段的工作中，我们建议 1) 执行用户需求评估，然后通过以下方式进行验证 机械测试，2) 使用创新的接近和增强现有的肌电控制技术 Point Touch 的力感应功能 此为 Point Touch 技术的短期实施。 将改善肌电控制技术并减轻假手使用者的认知负担。 第一阶段的工作将转向更大的第二阶段项目，该项目将测试点触及其算法 这些努力将结合周围神经接口患者的临床试验的能力。 Point Touch 作为假肢手指技术的领先候选者，已为商业化做好准备 周围神经接口和触觉的恢复。