| 摘要 |
The present invention relates to an instant pressure-reducing process and device for a blood-gathering tube which comprises a blood-gathering tube in a state of normal pressure and a pressure reducing device, wherein the blood-gathering tube in a state of normal pressure comprises a tube body made of plastic or other cheap material and an elastic cork. One end of the tube body is an opening and another end is closed. The central part of elastic cork is thinner in favor of being pierced through by the injection needle head, the elastic cork is tightly nested into the opening of tube body under normal pressure so as to separate inside of the tube body from outside. The pressure-reducing device comprises an injection needle head and a pressure-reducing transformer at least. The needle head is nested into the pressure-reducing transformer.
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