Catheter pump

The catheter pump comprises a catheter and a pump head located at the far end of the catheter and used for pumping blood. The pump head comprises a pump shell with a blood inlet and a blood outlet; the pump shell comprises a support connected to the far end of the catheter and a covering film. The bracket is operably switched between a radial folding state and a radial unfolding state; in the radial unfolding state, the stent comprises a main body part covered by a covering film, an inlet part located at the axial far end of the main body part and an outlet part located at the axial near end of the main body part, and the inlet part and the outlet part are connected with and support the main body part; the far end of the inlet part is connected with a far-end connecting part; the covering film comprises a first connecting part and a second connecting part which are located at the far end, the second connecting part is connected to the far end of the first connecting part, at least part of the first connecting