1. The special puncture needle followed by a drainage tube can go through skin and tissue to reach the areas of hematoma or ichors, avoiding big incision made by bistouries.
2. With small holes in the drainage tube, the secretion can be easily drained off by a suction machine.
3. The drainage tube with metal line inside can be detected by x ray.
Indications: This product is intended to drain away the emphysemas or secretion after operation.
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