Patent ID: 6685696
Filing Date: 2004-02-03
Classification: A61B,A61M

Abstract:
A hollow lumen cable for medical procedures comprising:a. a first helically wound flexible coil having a coil central axis and wound in a first direction; b. a second helically wound flexible coil wound in an opposite direction of said first helically wound coil with adjacent convolutions in contact and in an interfering fit relationship with said first helically wound coil; and c. a third helically wound flexible coil wound in an opposite direction of said second coil with adjacent convolutions of said third helically wound coil in contact and in an interference fit with said second helically wound coil wherein the cable is sufficiently flexible and having high torque resolution as to form a drive connection rotatable at relatively high speeds even when bent around relatively tight radii of curvature in cardiac and vascular systems.