MEASUREMENT OF TIDAL FLOW USING A TRANSIT-TIME ULTRASONIC BREATH ANALYZER
MEASUREMENT OF TIDAL FLOW USING A TRANSIT-TIME ULTRASONIC BREATH ANALYZER
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DOI：
10.1111/j.1365-2044.1995.tb05999.x
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发表时间：
1995-05-01
期刊：
影响因子：
10.7
通讯作者：
MCPEAK, H
中科院分区：
文献类型：
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作者：
WILLIAMS, EM;BURROUGH, SLM;MCPEAK, H
transtime超声波呼吸分析仪（TUBA, GHG Medical Electronics GMBH, Zurich, Switzerland）在实验室中测量峰值流量和潮汐量的能力在各种流量和压力条件下进行了测试，选择用于模拟接受机械通气支持的患者的呼吸模式。通过对TUBA流量传感器头部进行声学阻尼，实现了稳定的零基线。采用柱塞泵产生正弦流型，峰值流量范围为0.1 ~ 1.51 s（-1）。计算的峰值流量与TUBA测量的峰值流量相匹配。TUBA精确测量了三种不同流量模式在0.25到11之间的潮汐量（+/- 10%）。我们得出的结论是，一旦修改，TUBA可以提供一个准确的测量峰值流量和潮气量在一个范围内的数值可能会遇到的机械通气的肺。
The ability of the Transit-time Ultrasonic Breath Analyser (TUBA, GHG Medical Electronics GMBH, Zurich, Switzerland) to measure peak flow and tidal volume in the laboratory was tested using a variety of flow and pressure conditions, chosen to simulate the respiratory patterns of patients receiving mechanical ventilatory support. A stable zero baseline was achieved by acoustic damping of the TUBA flow sensor head. A piston pump was used to generate sinusoidal flow pattern, with a peak flow range from 0.1 to 1.51.s(-1). The calculated peak flow matched the peak flow measured by the TUBA. The TUBA accurately measured tidal volumes (+/- 10%) delivered using three different flow patterns over a range of volumes from 0.25 to 11. We conclude, that once modified, the TUBA can provide an accurate measurement of peak flow and tidal volume over a range of values likely to be encountered during mechanical ventilation of the lungs.