Variable Stiffness Balloon Catheter and Related Systems and Methods

摘要

The various embodiments herein relate to balloon catheters, and more specifically to balloon catheters having variable stiffnesses.

主权项

1. A balloon catheter comprising:
(a) a catheter shaft comprising:
(i) a proximal segment of the catheter shaft having a first predetermined stiffness;(ii) a distal segment of the catheter shaft having a second predetermined stiffness; and(iii) a transition zone disposed between the proximal segment and the distal segment, wherein the transition zone comprises a stiffness that varies gradually along a length of the zone; and (b) an expandable balloon operably coupled to the catheter shaft;