Clinical contrast injection device for cardiovascular examination

The invention discloses a clinical radiography injection device for cardiovascular examination. The clinical radiography injection device comprises a storage bottle; the storage bottle is hollow, an injection mechanism is arranged at the upper end, two liquid injection holes and a backflow hole are formed in the lower end, the lower ends of the liquid injection holes are movably connected with infusion catheters, and a heating mechanism is arranged on the outer wall of the storage bottle; the transfusion catheter is divided into a transfusion catheter I and a transfusion catheter II, an ultrasonic bubble detection element is arranged close to the tail end of the transfusion catheter, and the tail end of the transfusion catheter is movably connected with a control valve; the control valve comprises a shell and a valve element. The interior of the shell is hollow, a first liquid inlet, a second liquid inlet, a liquid outlet and a backflow opening are formed in the shell, the first liquid inlet is movably connec