PORTABLE RESPIRATORY GAS COLLECTION EQUIPMENT
PORTABLE RESPIRATORY GAS COLLECTION EQUIPMENT
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DOI：
10.1152/jappl.1971.31.1.164
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发表时间：
1971-01-01
影响因子：
3.3
通讯作者：
DANIELS, J
中科院分区：
文献类型：
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作者：
DANIELS, J
丹尼，杰克。便携式呼吸气体收集设备。J. Appl.Physiol.31（l）：164-167. 1971.-设计了一个简单的轻型呼吸阀和收集阀，用于收集净化气体交换数据。该设备在实验室和现场同样有用，可适应低阻力的高净化体积。呼吸阀在300 L/min流量下的死腔约为70 ml，阻力为0.5 cm Hz 0。收集阀允许从一个收集袋到另一个收集袋的快速无障碍变化，并且对于进行连续测量特别有用。轻便的ZOO-L气球使该系统非常便携，通过在加油的100毫升注射器中采集气体样品，在气体收集后不久，就消除了通过气球扩散的担忧。呼吸阀或收集阀可以改变以适应单次呼吸采样。系统收集的呼吸机-y体积与类似系统收集的呼吸机-y体积的比较表明，必要时可以移动更高的空气体积;在轨道上运行期间记录了超过220 L/min（BTPS）的VE值。呼吸阀;集气阀;肺气体交换运动中氧消耗的测量（002）是评估工作能力和能量消耗的广泛使用和接受的方法。为了确定他的VOP，受试者通过单向阀从气量计呼吸，或者进入气量计或收集袋。还必须从系统的呼气侧采集少量气体样品，用于分析CO、Or和Ns的分数。管道或柔性软管将呼吸阀与气量计和/或收集袋连接。剧烈运动，涉及大的呼吸量，需要一个呼吸阀和软管系统，这些软管是灵活的，阻力低，并具有测量或收集大量空气的能力。如果要进行连续的体积测量，还必须有一种方法来进行连续的气体收集，当在实验室外进行测试时，会出现进一步的复杂性，并且流动性变得更加重要。设计了一个呼吸阀和收集阀（图1），提供了一个高度移动的低阻力系统，并允许任何数量的连续收集。该设备已成功地用于测试奥运会跑步者在实验室和在跑道上运行。在正常情况下，两个人操作系统，但在某些现场情况下，可能需要三个或更多人（图2）。在实验室中，如果为收集阀提供支架，则一个人可以处理收集。
DANIEJS, JACK. Portable respiratory gas collection equipment. J. Appl. Physiol. 31 (l): 164-167. 1971.-A simple lightweight breathing valve and collection valve have been designed for the collection of ventilatory gas-exchange data. The equipment is equally useful in the laboratory and in the field and accommodates high ventilatory volumes with low resistance. The breathing valve has a dead space of about 70 ml and resistance of 0.5 cm Hz0 at 300 L/min flow. The collection valve allows rapid unobstructed change from one collection bag to another and is particularly useful for making consecutive measurements. Lightweight ZOO-L balloons make the system extremely portable, and by taking gas samples in oiled loo-ml syringes, soon after gas collection, the worry of diffusion through the balloons is eliminated. Either the breathing valve or collection valve can be altered to accommodate single-breath sampling. A comparison of ventilator-y volumes collected by the system, with those of similar systems, indicates that higher air volumes may be moved when necessary; VE values over 220 L/min (BTPS) have been recorded during running on a track. breathing valve; gas collection valve; pulmonary gas exchangeTHE MEASUREMENT of oxygen consumption (002) during exercise is a widely used and accepted means of assessing work capacity and energy expenditure. To determine his VOP the subject breathes through a one-way valve either from a gasometer, or into a gasometer or collection bag. A small gas sample must also be taken from the expired side of the system for analysis of the fractions of COs, Or, and Ns. Tubing or flexible hoses connect the breathing valve with the gasometers and/or collection bags. Heavy exercise, involving large ventilatory volumes, requires a breathing valve and system of hoses which are flexible and low in resistance, and have a capacity for measuring or collecting large quantities of air. If continuous volumetric measurements are to be made, there must also be a means for making consecutive gas collections, Further complications arise when testing takes place outside the laboratory and mobility becomes of greater importance. A breathing valve and collection valve have been designed (Fig. 1) which provide a highly mobile low-resistance system and which allow for any number of consecutive collections. This equipment has been used successfully for testing Olympic runners both in the laboratory and while running on the track. Two persons operate the system under normal conditions, but three or more may be necessary in some field situations (Fig. 2). In the laboratory one person can handle the collections if a support is provided for the collection valve.