The Point Powered: A Robust Actuated Prosthetic Finger for Partial Hand Amputation

Point Powered：用于部分手截肢的坚固驱动假肢手指

• 批准号: 10822123
• 负责人: Levin Sliker
• 金额: $ 114.29万
• 依托单位: POINT DESIGNS, LLC
• 依托单位国家: 美国
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-21 至 2025-08-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10822123
• 关键词: Address; Algorithms; Amputation; Anatomy; Biological Sciences; Biomedical Technology; Budgets; Cells; Characteristics; Charge; Clinical; Complex; Development; Devices; Digit structure; Economics; Employment; Engineering; Ensure; Family; Fingers; Focus Groups; Funding; Goals; Hand; Hand functions; Health; Individual; Lead; Life; Light; Lithium; Measures; Medical Technology; Mission; Motor; Myoelectric prosthesis; National Institute of Biomedical Imaging and Bioengineering; Patients; Persons; Phase; Polymers; Prosthesis; Reporting; Resources; Series; Speed; Strategic Planning; System; Technology; Testing; Torque; United States; Upper Extremity; Vision; Work; battery life; commercialization; cost; design; experience; grasp; health care settings; improved; innovation; limb loss; manufacture; miniaturized device; novel; patient population; physical science; powered prosthesis; prosthetic hand; prototype; psychosocial; research and development; technological innovation; transmission process; voltage

ABSTRACT Approximately 600,000 people live with partial hand limb loss (PHLL) in the United States, with an estimated 14,500 new cases occurring each year. Despite the advances in miniaturized electronics and motors, there has been very little advancement in mechatronic prosthetic digits for this underserved patient population. In fact, to date, there is only one myoelectric prosthetic option for individuals with PHLL in the US. This option is fragile, often limited to light-duty tasks, and is too large to use on most partial hand loss cases. Considering this, it is no surprise that less than half of the individuals with partial hand absence are able to return to their previous employment, and those who do must often make considerable changes to their work-related tasks. Thus, there is a substantial need to deliver a robust, low-profile myoelectric prosthetic digit system. To address this need, we have formed a collaborative development team that has successfully launched eleven devices, which have been fit on over 5,500 patients with upper limb loss and has significant regulatory experience, having received two 510(k) approvals and nine CE marks for upper limb prosthetic devices. Our funded Phase I project was focused on engineering development of a frame, transmission, and motor driver. All eight Phase I milestones were successfully met, and we went further to complete a User Needs Analysis. Based on these results, we now propose a Phase II effort focused on two highly focused engineering aims: 1) To develop, implement and optimize a novel clutch design; and 2) To develop, implement, and optimize a modular power system for partial hand myoelectric prostheses. Aim #1 is important since it will enable the finger to tolerate a 10-fold increase in passive load transmission versus during active use. Aim #2 is important because no currently existing power system meets the requirements determined by the User Needs Analysis, including: 1) low profile design; 2) allows users to replace the battery units themselves; and 3) compatible with single- handed use. The mission of Point Designs is to help individuals with PHLL regain the abilities that they had previously lost. We develop products that provide prosthetists and patients with solutions to meet the unique needs of each patient in this dynamic and challenging healthcare setting. To date, Point Designs has served over 1,100 individuals with partial hand limb loss (and our collaborative group has served an even greater number as noted previously). The work proposed in this proposal is critical to our efforts to develop a myoelectric partial hand prosthesis called Point Powered. We believe that this technology will provide an effective and durable solution for many people with finger loss and ensure their ability to enjoy their work, family, and life to the fullest.

抽象的 在美国，大约有60万人居住着部分手肢体损失（PHLL），估计有 每年有14,500例新案件。尽管微型电子和电动机取得了进步，但 对于这个服务不足的患者人群来说，机器人假肢数字的进步很少。实际上，要 日期，在美国患有PHLL的人只有一个肌电假体选择。此选项很脆弱， 通常仅限于轻度任务，并且太大，无法在大多数部分手部损失案例中使用。考虑到这一点，没有 令人惊讶的是，只有一半的人缺席的人能够返回以前的 就业，那些这样做的人通常必须对其与工作相关的任务进行大量更改。 因此，非常需要提供强大的低调的肌电假肢系统。解决 这种需求，我们组成了一个协作开发团队，该团队已成功启动了11个设备， 适合5500多名上肢损失的患者，并且具有大量的调节经验， 获得上肢假期设备的两个510（k）批准和9个CE标记。 我们资助的I期项目专注于框架，变速箱和运动驱动器的工程开发。 所有八个阶段的里程碑均已成功达到，我们进一步完成了用户需求分析。 基于这些结果，我们现在提出了针对两个高度重点的工程目的的II期努力：1） 开发，实施和优化一种新颖的离合器设计； 2）开发，实施和优化 部分手部肌电假体的模块化电源系统。 AIM＃1很重要，因为它将使手指启用 可以忍受被动载荷传播的10倍，而在主动使用过程中。目标＃2很重要，因为 当前现有的电源系统尚不满足用户需求分析确定的要求，包括： 1）低调设计； 2）允许用户本身更换电池单位； 3）与单人兼容 用手用途。 点设计的使命是帮助患有PHLL的人恢复以前失去的能力。 我们开发了为假肢和患者提供解决方案的产品，以满足每种的独特需求 患者在这种动态和挑战的医疗环境中。迄今为止，点设计已超过1,100 部分手肢体损失的人（我们的协作小组已经提供了更大的数量，如前所述 之前）。该提议中提出的工作对于我们开发肌电部分手的努力至关重要 假体称为点驱动。我们认为，这项技术将提供有效耐用的解决方案 对于许多有手指损失的人，并确保他们充分享受自己的工作，家庭和生活的能力。