Specification：

● Drainage ball:High transparency, easy to observe the color and measurement of drainage.
● Guide needle:The five-sided design of the needle tip has a small puncture trauma area; 
● the narrow neck structure prevents slippage during puncture, and is convenient to 
● adjust the bending angle of the guide needle according to clinical needs.
● Drainage tube:Good biocompatibility; high transparency of the tube body, easy to observe
● the drainage situation. Different types of drainage tubes such as perforated drainage 
● tubes and cross drainage tubes are available.
● Drainage bag:The bag body is transparent and has a scale, which is convenient for observing 
● the drainage fluid and metering; with a cross valve switch, it can be operated by one hand,
● which is convenient for sampling and testing.