Disposable test tube type blood plasma collection bag

The utility model relates to a blood plasma collecting bag, in particular to a disposable test tube type blood plasma collection bag. The utility model comprises a transition tube which is connected on one end of the blood plasma collecting bag. A soft tube is connected on the other end of the transition tube. The other end of the soft tube is connected on the port of the three-way valve. The other two ports of the three-way valve are respectively connected with two soft tubes. The other end of one soft tube is connected with a wide opening straight through. The wide opening straight through is connected with a wide opening straight through cap movably. A cramping apparatus is provided between the soft tube and a clog. The other end of the soft tube is connected with the clog. A test tube is installed on the clog. The utility model has simple structure and convenient operation and usage. The utility model is characterized in that when a sample is required to test and the blood plasma is required to test, the connecting soft tube between the collecting bag and the wide opening straight through is not cut off, and the testing blood plasma sample can be obtained. The product is sterile, nontoxic and the product has no heat source. The product adopts ethylene epoxide to sterilize. The product is widely used for collecting raw material blood plasma to use when the blood plasma is taken mechanically. The product has reasonable society and economic benefits.