Guide catheter

Abstract

A catheter system may include a guide catheter comprising a proximal end, a distal end, an inner liner, a braid surrounding the inner liner, and a jacket surrounding the braid. The catheter system may include a guide extension catheter comprising a guide extension wire and a tubular body, the tubular body of the guide extension catheter comprising a proximal end, a distal end, an inner liner, a coil surrounding the inner liner, and a jacket surrounding the coil. The guide catheter can be configured to receive the tubular body of the guide extension catheter. An inner diameter of the guide catheter decreases in the proximal direction, and an outer diameter of the tubular body increases in a distal direction. A proximal-most inner diameter of the guide catheter is smaller than a distal-most outer diameter of the tubular body.

Dependencies are inferred from the claim text.