Modernising trans-radial prosthetic socket creation with digital methods

利用数字方法实现经桡动脉假肢接受腔创建的现代化

• 批准号: 2281137
• 金额: --
• 依托单位: Newcastle University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2281137
• 关键词: Modernising; trans; radial; prosthetic; socket

It is estimated that globally 20-25% of all amputations are upper-limb, and approximately 1 in every 2500 children are born with upper-limb deficiency. Despite this, advances in upper-limb prosthetics, in particular the socket, have been slow and currently patients are often left with unsatisfactory and unreliable devices. The socket is a crucial part of the prostheses - it must be unique, comfortable and appropriate for the amputee's lifestyle. Socket-fitting is time-consuming and requires several visits to specialised clinics, often far from home. Currently, manufacturing sockets is extremely laborious and takes up lots of clinician time.Myoelectric (electronically operated) devices are a sub-type of upper limb prostheses that are not currently funded on the NHS. To use a myoelectric hand, the prosthetic socket must have electrodes which detect nerve impulses under the skin. The signals from the nerves are the 'instructions' to the prosthetic hand. Short term illnesses and water retention can cause significant changes in limb volume and therefore poor-fitting sockets; this contributes to low-quality signals and unpredictable reactions from the prosthetic hand, which can cause amputees to abandon their devices entirely. Multiple systematic reviews of the prosthetics field have highlighted a need for more clinically validated studies into novel socket designs. Several novel upper-limb socket designs exist, but often have only been tested for their effect on the factor they were designed to improve, or not tested clinically at all.Research Aim: The aim of this research is to take a holistic approach to creating and testing a novel design of upper limb socket. The research goals of the project can be categorised to:I. Use modern manufacturing methods to create a novel upper-limb socket that includes adjustability, myoelectric control and anatomical contouring. II. Test the socket with volunteers to see its effect on the electrode-body and socket-body interfaces. III. Incorporate a feedback mechanism into the socket using sensor technology, to assess and quantify the effects on the remaining limb of having an adjustable and optimised socket design.Objectives: A digital method of creating sockets will be devised utilising 3D scanning, 3D printing and modern materials to reduce the time and cost it takes to create a socket using traditional processes such as casting and lamination. The effects of different socket modifications will be assessed for their impact on control, comfort and patient satisfaction through a series of prototype designs and test rigs. A prototype adjustable socket will be created based on various existing socket designs and tested with volunteers experiencing trans-radial limb loss/deficiency. Using the feedback from the volunteers, the design will be refined and adapted to include electrodes for myoelectric control. Volunteers will be recruited for a study to compare the novel socket against a traditional socket to show whether myoelectric control reliability, comfort and other factors are improved with the novel design. After refining the myoelectric socket, various sensors will be included in the design as a feedback mechanism to help quantify the effect the novel socket has on the limb.

据估计，全球20%-25%的截肢是上肢，大约每2500名儿童中就有一名出生时有上肢缺陷。尽管如此，上肢假体，特别是插座的进展一直很缓慢，目前患者经常使用不令人满意和不可靠的设备。插座是假肢的关键部分--它必须独特、舒适，并适合截肢者的生活方式。安装插座很耗时，需要去几次专门的诊所，通常离家很远。目前，制造插座非常费力，占用了大量临床医生的时间。肌电(电子操作)装置是上肢假体的一个子类型，目前没有得到NHS的资助。要使用肌电手，假肢插座必须有能检测皮肤下神经冲动的电极。神经发出的信号是给假手的“指令”。短期的疾病和水分滞留可能会导致肢体体积的显著变化，从而导致不适合的插座；这会导致假手的低质量信号和不可预测的反应，这可能导致截肢者完全放弃他们的设备。对假体领域的多项系统评价强调了对新的插座设计进行更多临床验证研究的必要性。有几种新的上肢插座设计，但通常只测试它们对设计改进的因素的影响，或者根本没有在临床上进行测试。研究目的：本研究的目的是采取整体方法来创建和测试一种新的上肢插座设计。该项目的研究目标可以归类为：一、使用现代制造方法创造一种新型的上肢插座，包括可调整性、肌电控制和解剖轮廓。与志愿者一起测试插座，看看它对电极-本体和插座-本体界面的影响。使用传感器技术将反馈机制引入插座中，以评估和量化具有可调整和优化的插座设计对剩余肢体的影响。目标：将利用3D扫描、3D打印和现代材料设计一种数字方法来创建插座，以减少使用传统工艺(如铸造和层压)制造插座所需的时间和成本。将通过一系列原型设计和测试台来评估不同插座修改的效果，以了解它们对控制、舒适性和患者满意度的影响。基于各种现有的插座设计，将创建一个可调节插座的原型，并在经历了跨桡骨肢体丧失/缺陷的志愿者中进行测试。利用志愿者的反馈，设计将进行改进和调整，以包括用于肌电控制的电极。志愿者将被招募进行一项研究，将新型插座与传统插座进行比较，以显示新设计是否提高了肌电控制的可靠性、舒适性和其他因素。在对肌电插座进行改进后，设计中将包括各种传感器作为反馈机制，以帮助量化新型插座对肢体的影响。

项目成果

A Network-Enabled Myoelectric Platform for Prototyping Research Outside of the Lab

• DOI: 10.1109/embc46164.2021.9630318
• 发表时间: 2021-11
• 期刊: 2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)
• 作者: M. Dyson;Jennifer Olsen;S. Dupan

Remote creation of clinical-standard myoelectric trans-radial bypass sockets during COVID-19.

在 COVID-19 期间远程创建临床标准肌电经桡动脉旁路插座。

• DOI: 10.1109/embc46164.2021.9630925
• 发表时间: 2021
• 期刊: Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
• 作者: Olsen J

Does Trans-radial Longitudinal Compression Influence Myoelectric Control?

• DOI: 10.33137/cpoj.v5i2.37963
• 发表时间: 2022
• 期刊: Canadian prosthetics & orthotics journal
• 作者: Olsen, J;Day, S;Dupan, S;Nazarpour, K;Dyson, M
• 通讯作者: Dyson, M

Influence of design and material characteristics on 3D printed flow-cells for heat transfer-based analytical devices.

• DOI: 10.1007/s00604-022-05163-2
• 发表时间: 2022-01-24
• 期刊: Mikrochimica acta
• 作者: Figueiredo LF;Vieira FS;Jamieson OD;Reeder J;Mc Lean T;Olsen J;Crapnell RD;Whittingham MJ;Banks CE;Law R;Gruber J;Peeters M
• 通讯作者: Peeters M

The Impact of Limited Prosthetic Socket Documentation: A Researcher Perspective.

• DOI: 10.3389/fresc.2022.853414
• 发表时间: 2022
• 期刊: FRONTIERS IN REHABILITATION SCIENCES
• 作者: Olsen, Jennifer;Turner, Shruti;Chadwell, Alix;Dickinson, Alex;Ostler, Chantel;Armitage, Lucy;McGregor, Alison H.;Dupan, Sigrid;Day, Sarah
• 通讯作者: Day, Sarah