Catheter blood pump delivery, guiding systems and methods of use

A blood pump, comprising:

• a pump portion including an impeller housing and an impeller, the pump portion comprising a distal end;
• a rotatable drive mechanism in operable rotational communication with the impeller to cause the impeller to rotate;
• an axially extendable member with a distal end that is disposed further distally than the distal end of the pump portion,
• a guide member extending through the pump portion and axially moveable relative to the pump portion, the guide member in operable axial communication with the extendable member such that axial movement of the guide member causes axial movement of the extendable member relative to the pump portion;
• wherein the guide member is axially secured to an inner member of the extendable member, the extendable member further comprising outer member, wherein the inner member is adapted to be axially moved relative to the outer member with a limited range of motion, wherein the outer member and the inner member each have one or more surfaces that are configured such that when the one or more surfaces interface, the inner member and the outer member move together distally, but when the one or more surfaces are not interfaced, the inner member can move distally without causing distal movement of the outer member.