Burioka N, Takano K, Suyama H, Chikumi H, Hoshino E, Sasaki T
Third Department of Internal Medicine, Faculty of Medicine, Tottori University, Yonago.
Intern Med. 1997 Dec;36(12):861-4. doi: 10.2169/internalmedicine.36.861.
To examine the clinical efficacy of a newly developed pressure swing adsorption (PSA) type oxygen concentrator with a membrane humidifier without added water for humidification, the new machine was compared with the conventional PSA type oxygen concentrator with bubble water humidifier in 10 patients with chronic pulmonary disease. Relative humidity, partial pressure of oxygen (PaO2) and partial pressure of carbon dioxide (PaCO2) in arterial blood were measured when the patient breathed air and oxygen from the oxygen concentrators. No significant difference between PaO2 while breathing oxygen flow from the new machine and that while breathing oxygen from the conventional oxygen concentrator was observed. All patients answered that there was no difference on subjective impression between breathing oxygen from the new machine and from the conventional oxygen concentrator. Sufficient relative humidity (above 50%) of oxygen flow was obtained by using membrane humidifier. Since this machine saves the troublesome procedures of cleaning the container and changing the water, it will be beneficial to the patients who use a PSA-type oxygen concentrator in their home.
为了检验一种新开发的带有无加水膜加湿器的变压吸附（PSA）型制氧机的临床疗效，将该新机器与10例慢性肺病患者使用的带气泡水加湿器的传统PSA型制氧机进行了比较。当患者呼吸空气以及从制氧机中吸氧时，测量其动脉血中的相对湿度、氧分压（PaO2）和二氧化碳分压（PaCO2）。未观察到患者从新机器吸氧时的PaO2与从传统制氧机吸氧时的PaO2之间存在显著差异。所有患者均表示，从新机器吸氧和从传统制氧机吸氧在主观感受上没有差异。使用膜加湿器可使氧气流获得足够的相对湿度（高于50%）。由于该机器省去了清洁容器和换水的麻烦程序，因此对在家中使用PSA型制氧机的患者将是有益的。
