Blood-sample collection communicating vessel

The utility model discloses a communicating vessel for collecting blood-samples, comprising a case body and a needle. The case body is in a cylindrical shape and is divided into two cavities by a cross section in the middle. The needle passes through the cross section and is fixed at the center of the cavities parallel to the height of the cylindrical case body. An end of the needle is provided with a tip, and the other end is provided without a tip. Both ends of the needle are not extended the height of the case body. The cross section area of the cavity of the case body is bigger than the cross section area of the ordinary blood sampling vessel. The end of the needle without the tip can be even with the height of the case body. The utility model has the advantages that staffs can not be polluted, and components of the blood sample also can not be damaged. The operation is convenience and simple. The vessel is disposable, safe and sanitary.