面际注射压力取决于区域麻醉针的类型
Wilk Mateusz1,2, Jedrasiak Karol3, Suwalska Aleksandra4
1Collegium Medicum, WSB University, 41-300 Dabrowa Gornicza, Poland.
Journal of clinical medicine
|February 27, 2026
概括
针尖设计在超声波导向区域麻醉期间显著影响注射压力. 不同的针的几何形状会影响组织透和面际水解剖过程中的压力,这对于神经阻塞的成功至关重要.
科学领域:
- 麻醉学 麻醉学
- 超声波导向区域麻醉.
- 医疗器械工程 医疗器械工程
背景情况:
- 准确识别面际间空间对于成功的神经阻断止痛至关重要.
- 超声导向的方法存在挑战,特别是在肥胖或儿科患者.
- 之前的研究探讨了测量相对于面部平面的注入压力的方法.
研究的目的:
- 为了研究针头设计对超声波导向外围神经阻塞期间注射压力的影响.
- 在ex vivo猪组织中比较不同针头几何形状 (Facet,Facet S,Sprotte) 的压力动态.
主要方法:
- 使用定制设备在提供盐水时持续测量内注射压力.
- 采用了超声波引导的外围神经阻塞针 (22G,Pajunk) 与三个不同的尖端设计.
- 在猪大腿样本中分析了组织透和面际水解剖过程中的压力数据.
主要成果:
- 注射压力在肌内,肌穿刺和肌间阶段有显著的变化,具有明显的穿刺峰值.
- 针的几何学证明了在所有阶段对压力的显著影响 (p ≤ 9.2 × 10−5).
- 经典的尖端显示了最高的肌内/面际压力,尖端显示了最低的穿孔压力,横端显示了最低的肌内/面际压力.
结论:
- 针尖的几何结构在区域麻醉中极大地影响了注射压力动态.
- 经典的尖端与更高的面膜透压力有关;尖端与较低的穿孔压力有关.
- 侧面尖端与最低的肌内和肌间压力有关,可能改善针引导.
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