一个带有集成热反的感觉运动手假肢
Jonathan Muheim1, Francesco Iberite2, Outman Akouissi3
1Bertarelli Foundation Chair in Translational Neural Engineering, Neuro-X Institute, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.
Med (New York, N.Y.)
|February 10, 2024
概括
这项研究将幻影热感应集成到机器人假肢手中,使截肢者能够感受到实时温度反. 这项创新允许进行自然温度的区分,提高了假肢的功能.
科学领域:
- 神经科学是一个神经科学.
- 生物医学工程 生物医学工程
- 机器人技术 机器人技术 机器人技术
背景情况:
- 截肢者的幻体热感使残余肢体的热刺激能够唤起失踪手中的感觉.
- 这项研究利用幻体热感觉来开发一种新的假肢手系统.
研究的目的:
- 开发和测试一个集成到机器人假肢手中的独立系统,用于实时温度反.
- 为了评估截肢者使用传感器假肢区分热性能的能力.
主要方法:
- 一个单边的透射截肢者使用传感器假肢来操纵物体并区分热特性.
- 任务包括区分热,冷和环境温度,不同的材料和人工与人类手.
- 热盒和块测试 (热BBT) 引入,以评估在取置任务期间的实时温度歧视.
主要成果:
- 试验对象准确地区分了温度和材料在偶然水平以上的温度和材料,与他们完好无损的手可比.
- 这位受试者在15个会议的热BBT中表现出很高的准确性.
- 幻影热感觉在400天的13次会议中保持稳定.
结论:
- 开发的系统通过幻影热感觉成功地提供了自然温度反.
- 这项研究推动了更自然,更完整的手假肢的开发.
相关概念视频
01:33Somatosensation
The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
01:43Thermosensation
Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...