Exploration of Socket Cooling Using Novel Passive Heat Spreader Technology

使用新型被动散热器技术进行插座冷却的探索

• 批准号: 9356339
• 负责人: RICHARD Fergus ffrench WEIR
• 金额: --
• 依托单位: VA EASTERN COLORADO HEALTH CARE SYSTEM
• 依托单位国家: 美国
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-11-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/9356339
• 关键词: Affect; Air; Amputation; Amputees; Area; Bypass; Consumption; Data; Data Set; Devices; Electrodes; Goals; Individual; Industry; Lower Extremity; Measures; Methods; Microprocessor; Monitor; Persons; Pilot Projects; Prosthesis; Pump; Quality of life; Recruitment Activity; Shoulder; Signal Transduction; Skin; Solid; Speed; Surface; Surgical Disarticulation; Sweat; Sweating; Technology; Temperature; Testing; Translating; Upper Extremity; Walking; Work; cost; improved; light weight; limb amputation; novel; prosthetic socket; public health relevance; treadmill; vapor; wasting

DESCRIPTION (provided by applicant): This Pilot project is to explore the issue of using assisted cooling of the socket to improve socket comfort. Celsia NanoSpreader Vapor Cooler technology is a novel passive planar cooling technology developed for cooling microprocessors that we believe can be applied to the problem of socket cooling. A leading cause of prosthesis abandonment are comfort issues one of which is they are frequently too hot - particularly at Shoulder disarticulation or forequarter level where the socket covers a large portion of the remaining torso. Additionally, the variable intensity sweating inside of the prosthesis socket produces changes in the signals that surface EMG electrodes detect. Active cooling may offer a solution to this problem. The goal of this project is to provide a lightweight, low cost, passive energy method to move the excess heat from the surface of the skin to the outside of the prosthesis. Celsia is a novel planar cooling technology developed for cooling microprocessors that we think can be applied to the problem of socket cooling. This Pilot project is to explore the issue of using assisted cooling of the sockt to improve socket comfort. The Celsia technology is attractive because it is a completely passive device - no external electrical power is necessary to drive the thermal pumping action which is used to disperse waste heat. In the first year we are proposing to fabricate bypass sockets so that intact individuals may wear a socket similar to that worn by person with shoulder disarticulation amputations. These sockets will be are either solid (no NanoSpreader), have simple hole cutouts for air cooling, or have the NanoSpreader built in. Using these large surface area sockets we will work out the kinks associated with the use of the Nanospreader and any issues involved with integrating them into a prosthetic socket. In the second year we will recruit persons with lower-limb amputations and have them test similar sockets fabricated for the lower-limb. We will have the subjects walk on a level treadmill while wearing these sockets and walking at three different speeds while monitoring the temperature inside the socket and measuring O2 consumption. At the end of each subjects session there should be 4 temperature data sets for No socket, solid socket, socket with cutouts, socket with NanoSpreader. PUBLIC HEALTH RELEVANCE: This Pilot project is to explore the issue of using assisted cooling of the socket to improve socket comfort. Celsia is a novel passive planar cooling technology developed for cooling microprocessors that we believe can be applied to the problem of socket cooling. A leading cause of prosthesis abandonment is comfort issues one of which is they are frequently too hot - particularly at Shoulder disarticulation or forequarter level where the socket covers a large portion of the remaining torso. Additionally, the variable intensity sweating inside of the prosthesis socket produces changes in the signals that surface EMG electrodes detect. Active cooling may offer a solution to this problem. The goal of this project is to provide a lightweight, low cost, passive energy method to move the excess heat from the surface of the skin to the outside of the prosthesis.

描述（由申请人提供）： 该试点项目旨在探索使用插座辅助冷却来提高插座舒适度的问题。 Celsia NanoSpreader 蒸气冷却器技术是一种新型被动平面冷却技术，专为冷却微处理器而开发，我们相信该技术可以应用于插座冷却问题。 假肢废弃的主要原因是舒适度问题，其中之一是假肢经常太热，特别是在肩关节离断或前躯水平处，接受腔覆盖了剩余躯干的大部分。此外，假肢接受腔内不同强度的出汗会导致表面肌电图电极检测到的信号发生变化。主动冷却可能会解决这个问题。该项目的目标是提供一种轻质、低成本的被动能源方法，将多余的热量从皮肤表面转移到假肢的外部。 Celsia 是一种为冷却微处理器而开发的新型平面冷却技术，我们认为它可以应用于插座冷却问题。该试点项目旨在探索使用插座辅助冷却来提高插座舒适度的问题。 Celsia 技术之所以有吸引力，是因为它是一种完全无源的设备——无需外部电源来驱动用于驱散废热的热泵作用。 在第一年，我们建议制造旁路插座，以便完好无损的人可以佩戴类似于肩关节离断截肢者所佩戴的插座。这些插座要么是实心的（没有 NanoSpreader），要么有简单的孔切口用于空气冷却，要么内置 NanoSpreader。使用这些大表面积插座，我们将解决与使用 Nanospreader 相关的问题以及涉及的任何问题将它们集成到假肢接受腔中。第二年，我们将招募下肢截肢者，让他们测试为下肢制造的类似插座。 我们将让受试者在水平跑步机上行走，同时佩戴这些插座并以三种不同的速度行走，同时监测插座内的温度并测量氧气消耗量。在每个受试者会话结束时，应该有 4 个温度数据集：无插座、实心插座、带切口的插座、带 NanoSpreader 的插座。 公共卫生相关性： 该试点项目旨在探索使用插座辅助冷却来提高插座舒适度的问题。 Celsia 是一种新型被动平面冷却技术，专为冷却微处理器而开发，我们相信它可以应用于插座冷却问题。 假肢废弃的主要原因是舒适度问题，其中之一是假肢经常太热，特别是在肩关节离断或前躯水平处，接受腔覆盖了剩余躯干的大部分。此外，假肢接受腔内不同强度的出汗会导致表面肌电图电极检测到的信号发生变化。主动冷却可能会解决这个问题。该项目的目标是提供一种轻量级、 低成本的被动能源方法将多余的热量从皮肤表面转移到假体的外部。