The ornamental design for a cage for catheterpump, as shown and described.
1. Cage for catheter pump
1.1 : Perspective
1.2 : Front
1.3 : Back
1.4 : Top
1.5 : Bottom
1.6 : Right
1.7 : Left
Figure 1.1 shows the perspective view of the cage for catheter pump; figure 1.2 shows the front view of the cage for catheter pump; figure 1.3 shows the back view of the cage for catheter pump; figure 1.4 shows the top view of the cage for catheter pump; figure 1.5 shows the bottom view of the cage for catheter pump; figure 1.6 shows the right side view of the cage for catheter pump; figure 1.7 shows the left side view of the cage for catheter pump.