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人工呼吸机是抢救和治疗呼吸衰竭患者的重要医疗设备.国产KTH-Ⅲ可控同步呼吸机在临床上可用于机控呼吸,也可用于同步辅助呼吸,具有操作方便、性能安全、潮气量较为恒定等优点。一、基本结构原理 KTH-Ⅲ可控同步呼吸机属电控气动、时间切换型呼吸机,主机由电路、气路两大部份组成。图1为该机原理框图。由图1可知,整机由电路部份产生脉冲信号控制气路,使气路有间歇正压的潮气输出。该机电路部份由稳压电源、多谐振荡器、单稳
The artificial respirator is an important medical device for rescuing and treating patients with respiratory failure.Chinese-made KTH-Ⅲ controlled synchronous respirator can be used in machine-controlled respiration in clinical practice, and can also be used for synchronous respiration. It has the advantages of convenient operation, safe performance and relatively low tidal volume Constant and so on. First, the basic structure and principle KTH-Ⅲ controlled synchronous breathing machine is electrically controlled pneumatic, time switch-type ventilator, the host from the circuit, gas two major components. Figure 1 for the machine block diagram. As can be seen from Fig. 1, the whole machine generates the pulse signal to control the gas circuit from the circuit part, so that the gas circuit has intermittent positive pressure moisture output. The circuit part of the power supply from the regulator, multivibrator, monostable