Deflectable Catheter Bodies with Corrugated Tubular Structures

摘要

A guidable, or steerable, or deflectable catheter is provided that includes a proximal portion and a distal portion for insertion into a body cavity. A selectively deflectable segment having an anisotropic bending stiffness for deflection in individual planes is incorporated into the distal portion of the catheter shaft. The deflectable segment comprises a corrugate structure that provides smooth curvatures of desirable configurations, deflection planarity, and easiness.

主权项

1. A catheter, comprising:
a catheter body having a proximal portion and a distal portion; and a deflectable segment in the distal portion, wherein the deflectable segment includes a central lumen, and wherein the deflectable segment comprises:
a first layer comprising a first corrugated surface; anda second layer comprising a second corrugated surface, and wherein the first and second corrugated surfaces are adjacent.