GUIDEWIRE FOR CANNULA PLACEMENT

摘要

A guidewire for backloading and inserting a percutaneous pump affixed to a cannula includes a proximal section made of a first material, with a first diameter, a rounded proximal end, and a distal end. The guidewire also includes a distal section made of a second material, with a second diameter which is greater than the first diameter, a distal end, and a proximal end abutting the distal end of the proximal section. The first material of the proximal section is selected to be softer than a material of the percutaneous pump to reduce damage to the pump during backloading. The distal section of the guidewire is configured to be stiffer than the proximal section to insert the percutaneous pump in a desired location without damaging the guidewire.

主权项

1. A system for the insertion of a percutaneous pump, the system comprising:
a percutaneous pump; a cannula with a cannula diameter, a proximal inlet, and a distal outlet with the percutaneous pump; a guidewire with a proximal section with a first stiffness and having a first diameter, and a distal section connected to the proximal section, the distal section with a second stiffness and having a second diameter greater than the first diameter, wherein the distal section is stiffer than the proximal section to insert the cannula in a desired location without displacing the guidewire.