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本装置经过一个收集瓶连接于鼻胃管,通过一个大容器的负压发挥作用,该容器并附有一个小容积的水压量器及安全阀。所需设备1.一个大的塑料或金属瓶(50—60升)。2.可容纳金属管或塑料管的合适胶皮瓶塞。3.120cm长的塑料细管。4.1m长木制或金属刻度尺。5.10ml小瓶和8ml加有任何可用颜料的水。6.适当的管子和收集瓶。连接于口A的塑料细管下端插进盛有8ml有色水的10ml小瓶内,并将该管垂直固定于1m长的刻度尺上。通过口B抽出大瓶内空气,当大瓶内压力降低时,有色水即被吸入塑料细管内,当水柱升至70cm刻度时则停止抽气并钳闭连接口B的管(工作时再放开——译者),这代表可施于胃粘膜的最大吸力。测压装置也作为安全阀,如压力再降低,则水被吸进大
The device is connected to the nasogastric tube via a collection bottle and acts through a negative pressure in a large container, which is accompanied by a small volume of water pressure gauge and a safety valve. Equipment Required 1. A large plastic or metal bottle (50-60 liters). 2. Suitable plastic bottle stoppers for metal tubes or plastic tubes. 3.120cm long plastic tube. 4.1m long wooden or metal scale. 5.10 ml vials and 8 ml of water plus any available pigment. 6. Appropriate tubes and bottles. The lower end of the plastic tube connected to port A was inserted into a 10 ml vial containing 8 ml of colored water and the tube was fixed vertically to a 1 m long scale. Through the mouth B out of the big bottle of air, when the big bottle pressure is reduced, the colored water is sucked into the plastic tube, when the water column rises to 70cm scale, then stop pumping and clamp the connection port B tube (open - - translator), which represents the maximum suction can be applied to the gastric mucosa. Pressure measuring device is also used as a safety valve, such as pressure and then reduce, the water is sucked into a large