Patent ID: 11944762
Assignee: EDWARDS LIFESCIENCES CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A steerable catheter assembly comprising:
a catheter with a first wire and a second wire that flex the catheter;
a control handle coupled to the catheter, the control handle comprising:
a direction control coupled to the first wire and the second wire such that adjustment of the direction control adjusts a direction of catheter flex by increasing tension in one of the first and second wires and decreasing tension in the other of the first and second wires; and
a magnitude control coupled to the first wire and the second wire such that adjustment of the magnitude control increases a magnitude of catheter flex by simultaneously increasing tension in the first and second wires and decreases the magnitude of catheter flex by simultaneously decreasing tension in the first and second wires;
wherein the control handle comprises a pair of followers, wherein each follower is coupled to the direction control such that each follower moves in an opposite axial direction in response to the same adjustment of the direction control, and wherein each follower is coupled to at least one pull wire; and
wherein the pair of followers are coupled to a dual threaded nut that is rotated by the direction control.