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 observethe 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.