Guidewire positioning devices and systems

A method for delivering a guidewire through a heart valve, the method comprising:

• delivering a delivery catheter via a blood flow pathway to a heart valve, the delivery catheter having a first inner lumen configured to receive an inner catheter, a positioning device, and a guidewire;
• passing the inner catheter through the first inner lumen of the delivery catheter, the inner catheter having a second inner lumen and configured to carry the positioning device at an exterior surface of the inner catheter;
• extending the inner catheter out of a distal end of the delivery catheter to allow the positioning device to expand in multiple directions around the inner catheter;
• and
• passing the guidewire through the second inner lumen of the inner catheter and out of a distal end of the inner catheter.

A device for positioning a guidewire at an opening of a heart valve, the device comprising:

• a crimped portion configured to crimp to an inner catheter;
• an expandable base portion configured to compress to fit within a delivery catheter and expand within a blood flow pathway upon removal from the delivery catheter;
• and
• one or more side portions configured to extend along tissue walls of the blood flow pathway to prevent tilting of the inner catheter.