Catheter device

An intravascular blood pump device for percutaneous insertion into a patient's vasculature to provide cardiac support, the intravascular blood pump device comprising:

• a drive shaft having a proximal end and a distal end;
• a rotor, connected to the distal end of the drive shaft;
• a pump head comprising a distal inlet, a proximal outlet, and an expandable and collapsible pump housing having a proximal end and a distal end, wherein the rotor is located in the expandable and collapsible pump housing between the proximal end and the distal end of the expandable and collapsible pump housing, and, upon actuation, the pump head is configured to pump blood through the intravascular blood pump device;
• a body cap at a distal end of the intravascular blood pump device, the body cap having a proximal end and a distal end, the proximal end of the body cap being coupled to a distal end of the pump head by a body element, and wherein the body cap comprises an atraumatic ball;
• and
• the body element is an elongate tubular flexible projection, having proximal and distal ends, that projects distally away from the distal end of the expandable and collapsible pump housing and forms a flexible connection between the distal end of the expandable and collapsible pump housing and the body cap, wherein the proximal end of the atraumatic ball is positioned distally relative to the distal end of the body element.