Specialist devices for patients after surgery. It is a kit set, including two radial connectors (one blue and one white, also them as pagoda connector), one cornical connector (transparent), and three threaded luer locks. Six of them are universally used to slove all the turing connection problems after surgery. Using them, no need worrying about leakage, disconnection, size dismatching and others. For blue pagoda connector, it suits with the tubing diameter more than 16Fr, and the white one are applied with the tubings from 3Fr to 16Fr.
Disposable use of drainage tubes for medical purposes (silica gel) purpose: used for suction sealing wound, suitable for the drainage of blood and fluid during and after surgery. We have patent of drainage tubes for medical purposes for anti flow and anti leakage.
By discharging the air in the drainage bottle to form a negative pressure with the outside, the waste liquid at the other end of the drainage tube flows into the drainage bottle through the drainage tube to achieve the purpose of drainage.
Negative Pressure Drainage Ball
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Spring Chinese cabbage should be planted in neutral soil that is easy to shelter, sunny, fertile, loose, and convenient for irrigation and drainage, and should not be replanted with cabbage crops. Before the harvest as soon as possible to deepen the sun, and apply enough base fertilizer. Spring cabbage has a short growth period. In principle, it uses a method of promoting the end of the fertilization. The amount of basal fertilizer accounted for 60% of the total amount of fertilization, 3,000 kg of compost per acre and 20 kg of NPK fertilizer.
7 to 10 days before planting, do the earthworms and apply enough base fertilizer. The spring rain in the south is more suitable for the cultivation of deep ditch sorghum. The sorghum is easy to dry after the rain or watering, which can reduce the occurrence of downy mildew and soft rot. The thick soil layer is conducive to the downward extension of the Chinese cabbage roots. If the weather is dry, it should be properly watered to ensure that the soil is in a moist state when it is done. Covering the mulch and covering the greenhouse film after ramming to improve the temperature of the shed. A standard greenhouse can do 3 or 4 inches.
The roots of Chinese cabbage are shallow, and the use of nutrients and water in deep soils is weak, and the requirements for soil, moisture, and nutrients are relatively high. In addition to selecting soils with deep soil and good physical and chemical properties, it is necessary to combine soil preparation with fertilization and hoeing for cultivation and management.