新型防护型呼吸回路管的设计与应用  

Design and application of novel protective ventilator circuit component

作　　者：武卫周 路康 曹晶杰 赵志华 兰海涛 陈赞超 薛庆峰 WU Wei-zhou;LU Kang;CAO Jing-jie;ZHAO Zhi-hua;LAN Hai-tao;CHEN Zan-chao;XUE Qing-feng(The 985th Hospital of Joint Logistics Support Force,Taiyuan 030001,China)

机构地区：[1]联勤保障部队第985医院,太原030001

出　　处：《医疗卫生装备》2025年第4期113-117,共5页Chinese Medical Equipment Journal

摘　　要：目的:设计一种新型防护型呼吸回路管,并通过水封实验及防喷溅实验验证其性能。方法:新型防护型呼吸回路管采用多功能接头设计,由三通连接管、隔绝套筒和止位套筒组成,其中,三通连接管由聚乙烯高分子材料制成,隔绝套筒、止位套筒均由硅胶材料制成。三通连接管为带有2个标准连接口的T形三通管,主要结构包括转换接头、密封盖、塞体、密封环;隔绝套筒呈底部凸起的圆柱形,插套在转换接头内;止位套筒位于隔绝套筒内,其底部呈倒圆台结构,倒圆台结构中部设有圆形穿置孔。采用开放式呼吸回路管和新型防护型呼吸回路管进行水封实验,模拟吸痰,比较吸痰后L形模型管中液面下降高度;采用开放式呼吸回路管和新型防护型呼吸回路管进行防喷溅实验,计算吸痰时无菌洞巾和无菌手套表面的染菌率。结果:水封实验结果显示,采用开放式呼吸回路管吸痰后L形模型管中液面下降高度明显高于采用新型防护型呼吸回路管;防喷溅实验结果显示,采用开放式呼吸回路管吸痰时可见分泌物喷溅出来,染菌率为77.5%,而采用新型防护型呼吸回路管吸痰时未见分泌物喷溅出来,染菌率为0%。结论:新型防护型呼吸回路管的封闭性好、防喷溅功能强,适用于吸痰护理操作。Objective To develop a novel protective ventilator circuit component and to verify its performance by water seal and anti-splash experiments.Methods A novel protective ventilator circuit component had a design scheme with the multifunctional joint,and consisted of a tee connection tube,an isolation sleeve and a stop sleeve,of which,the tee connection tube was made of polyethylene polymer material and the others were made of silicone material.The tee connection tube had a T-shaped structure with two standard connection ports,which was composed of an adapter,a sealing cap,a plug and a sealing ring;the isolation sleeve was in the shape of a cylinder with a raised bottom,which was inserted into the adapter;the stop sleeve was located in the isolation sleeve,with an inverted frustum of a cone at the bottom and a rounded hole in the middle of the inverted frustum.An open ventilator circuit tube was involved in the performance verification of the circuit component developed.In the water seal experiment,sputum aspiration was simulated and the heights of the liquid level drop in the L-shaped tubes were compared after sputum aspiration.In the anti-splash experiment,the infection rates on the surfaces of the sterile hole towels and gloves were calculated.Results Water seal experiment showed after sputum aspiration the open ventilator circuit tube had the liquid level at the L-shaped tube higher significantly than that of the circuit component;the anti-splash experiment indicated sputum aspiration resulted in the occurance of the splashing out of the secretion and 77.5%infection rate by the open ventilator circuit tube,while no splashing out and 0%infection rate by the circuit component developed.Conclusion The novel protective ventilator circuit component behaves well in sealing and anti-splashing,and thus is worthy of clinical application for sputum aspiration.

关 键 词：呼吸回路管 机械通气 吸痰护理 呼吸机相关性肺炎 

分 类 号：R318.6[医药卫生—生物医学工程] TH789[医药卫生—基础医学]