吸收尿管接入罩的安全压力:试验室压力转换为流量
Jordan Santucci1, Matthew Alberto1,2, Niranjan Sathianathen1,2
1Department of Urology, Austin Health, Heidelberg, Victoria, Australia.
BJU international
|September 25, 2025
概括
50-80mmHg的吸气压力通常足以用于吸气尿道接入罩 (sUAS). 对于较小的外可能需要更高的压力,仪器可以减少流平衡.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 医疗器械 医疗器械
- 流体动力学 流体动力学
背景情况:
- 吸收尿道接入 (sUAS) 对于在尿道透视期间保持可见性和灌至关重要.
- 最佳的吸气压力对于有效的无人机系统功能至关重要,但需要特定的,取决于尺寸的设置.
- 之前的研究还没有为各种配置的无人机吸气压力建立明确的操作限制.
研究的目的:
- 建立吸管尿道接入罩 (sUAS) 中吸管压力设置的实际,尺寸特定的操作限制.
- 为了确定外尺寸和外内仪器对流动动学的影响.
- 为优化sUAS在临床实践中的性能提供基于证据的指导方针.
主要方法:
- 使用8.7F柔性尿道镜,用仪器和没有仪器 (激光纤维,篮子) 测量灌流量.
- 在不同吸气压力 (50-300 mmHg) 下,通过10/12-F,11/13-F和12/14-F sUAS测量出的流量.
- 采用线性插值来推导流平衡的尺寸和仪器特定的吸气压力极限.
主要成果:
- 尿道镜输入量在30-130毫升/分钟之间;仪器减少了42-57%的输入量.
- sUAS的外流量从5-700毫升/分钟不等,显示与负压的线性关系 (R2 0.94-0.99).
- 较低的吸气压力 (50-80 mmHg) 对于较大的SUAS来说是足够的,而较小的需要更高的压力 (150-300 mmHg).
结论:
- 50-80mmHg的吸气压力足以适用于大多数sUAS应用.
- 增加灌流量可以抵消过度的sUAS外流,但仪器使用可能会否定这一好处.
- 尺寸特定的压力极限对于有效的无人驾驶系统运行至关重要.
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