在假肢手握过程中预测感知温度的预测警告
概括
假肢手现在可以检测和警告用户有害的热物体. 一个新的系统使用快速算法和感官反来通过信号危险的温度来防止损坏.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 生物医学工程 生物医学工程
- 感官反系统 感官反系统
背景情况:
- 假肢手缺乏感知危险温度的能力,有可能对设备和用户造成伤害.
- 对感觉 (引起疼痛) 温度的预警系统对于防止假肢手受损至关重要.
研究的目的:
- 开发一种快速的算法,用于预测被抓住的物体的稳定状态温度.
- 为了验证假肢手指的双状态感官编码策略.反.
- 为了使假手能够警告用户可能有害的温度.
主要方法:
- 使用耐热传感器和快速算法来预测物体温度.
- 实施了一种双态感官编码策略:声为力,刺痛为有害的温度.
- 为了测试系统,对一个有能力的受试者进行了心理物理实验.
主要成果:
- 在0.75±0.00秒内实现了稳定状态温度识别,误差为8.3±6.0%.
- 试验对象以98.2%的准确度正确地识别了高于感知值的温度,以97.0%的准确度识别了低于感知值的温度.
- 该系统准确地确定了60°C的感知值,在这个温度附近触发释放反应.
结论:
- 开发的算法和传感编码策略可以实时识别和通知不安全的温度.
- 这项技术可以恢复截肢者的感觉反,防止用假肢手抓住热物体而造成的损伤.
- 该系统在改善日常生活中假肢设备的安全性和功能方面显示出临床相关性.
相关概念视频
Thermosensation
30.4K
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...
30.4K
Decreased Body Temperature
620
A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...
620
Assessing Body Temperature - Temporal Artery
554
Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's...
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.
Step 3: Assess the patient's...
554
Nociception
27.9K
Nociception—the ability to feel pain—is essential for an organism’s survival and overall well-being. Noxious stimuli such as piercing pain from a sharp object, heat from an open flame, or contact with corrosive chemicals are first detected by sensory receptors, called nociceptors, located on nerve endings. Nociceptors express ion channels that convert noxious stimuli into electrical signals. When these signals reach the brain via sensory neurons, they are perceived as pain.
27.9K


