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在拳击中看到的直接下巴冲击期间仪器口罩的准确性
Jay Venkatraman1, Mitchell Z Abrams2, Donald Sherman3
1Department of Biomedical Engineering, Wayne State University, Detroit, MI, USA. jay.venkatraman@wayne.edu.
Annals of biomedical engineering
|July 19, 2024
概括
这项研究发现,仪器口罩 (iMGs) 在测量尸体的头部动力学方面表现出不同的精度. 尸体后人类受试者 (PMHS) 为IMG提供了比ATD更现实的验证.
科学领域:
- 生物力学 生物力学
- 运动医学 运动医学
- 伤害预防 预防伤害
背景情况:
- 测量头部动力学对于开发接触运动中头部损伤减轻策略至关重要.
- 仪器口罩 (iMG) 为捕获头部撞击数据提供了改进的解决方案.
- 使用死后人类受试者 (PMHS) 进行IMG的验证是有限的,尽管它们的软组织反应表现优于与人形测试设备 (ATD) 相比.
研究的目的:
- 为了评估两个IMG的准确性,防止生物识别 (PRE) 和多元化技术系统 (DTS),在测量头部动力学.
- 为了比较iMG性能与参考传感器,使用直接对尸体头部的下巴冲击.
- 评估PMHS对于验证iMG技术的适用性.
主要方法:
- 三个未经包装的男性尸体头部配备了PRE和DTS iMG.
- 冲击是使用子 (4米/秒) 和上刀 (3米/秒) 的冲击来进行的.
- 来自IMG的动态数据与连接到头骨底部的参考传感器 (REF) 进行了比较,分析了峰值线性加速,峰值角加速和头部损伤标准 (HIC) 等指标.
主要成果:
- 与REF传感器相比,PRE iMG通常预测的动力学数据不足 (回归斜率:0.721.04).
- DTS iMG 持续地预测过多的动力学数据 (回归斜率:1.48.7).
- 无论iMG完全复制以前的ATD验证研究的结果.
结论:
- 而PRE iMG与DTS iMG相比,与参考传感器更接近.
- 这项研究强调了PMHS对iMG准确验证的重要性,因为它们具有现实的生物力学特性.
- 目前的iMG需要进一步改进,以便在真实的人类头部冲击中可靠地测量头部动力学.
相关概念视频
Personal Protective Equipment
Personal protective equipment (PPE) is unique clothing or equipment worn by an employee to minimize or prevent exposure to infectious agents. PPE creates a barrier between the employee and the infectious materials. PPE must be readily available in the patient care area. PPE includes gloves, gowns and aprons, masks and respirators, goggles, face shields, shoes, and headcovers:
PPE Use in Healthcare Settings I: Donning
Donning PPE must be completed before contact with the patient. This process protects from infectious agents. The sequence and action included in each donning are critical, and the steps must be systematic to avoid exposure to pathogens. The institutional policy also needs to be followed while donning PPE. The pre-donning preparations are gathering equipment, inspecting the PPE equipment for tears, holes, or damage, removing jewelry, removing any garments below the elbows, and tying the hair...
PPE Use in Healthcare Settings II: Doffing
The sequence of removing or doffing PPE starts with the gloves, as they are the most contaminated. Next is removal of the face shield or goggles, as they would interfere with removing other PPE. Then remove the gown, followed by the mask or respirator. Perform hand hygiene between steps if hands become contaminated and immediately after removing all PPE. Generally, the outside front and sleeves of the isolation gown, the goggles or the mask, the respirator, and the face shield are contaminated.
Cardiopulmonary Resuscitation II: ACLS Airway Management
Airway management is a key skill in emergency and critical care settings, as maintaining a clear airway is essential for adequate oxygenation and ventilation.Head Tilt-Chin Lift TechniqueThe head tilt-chin lift maneuver is an essential technique primarily used in patients without suspected cervical spine injuries. To perform this maneuver, one hand is placed on the patient’s forehead, and gentle pressure is applied backward to tilt the head. The fingertips of the other hand are positioned under...

