目前,各医疗部门还大都延用手提式、液压式的胃肠减压器。它的最大弊端是靠人工手提、换位。给护理人员带来极大不便。笔者利用丝杠传动提升,接点定位控制,设计了一台电动自控胃肠减压。现介绍如下:电控线路原理:此电路图中(附图)JC_1为提升继电器,JC_2为托盘还原继电器。J_1J_2J_3J_4为定位控制接点。当抽气桶降到最底端时将JC_1接点压合,JC_1继电器得 At present, most of the medical departments also extend the use of hand-held, hydraulic pressure reducer. Its biggest drawback is by hand, transposition. Great inconvenience to nurses. I use screw drive to enhance contact control positioning, the design of an electrically controlled gastrointestinal decompression. Now introduced as follows: Electronic control circuit principle: This circuit diagram (with photos) JC_1 to enhance the relay, JC_2 for the tray to restore the relay. J_1J_2J_3J_4 for positioning control contacts. When the suction bucket down to the bottom of the JC_1 contacts pressed together, JC_1 relay