Patent ID: 9586025
Date: 2017-03-07
CPC Classifications: A61B,A61M

Claim:
1. A steerable medical device, comprising: a first flexible polymeric tubular member; a second flexible polymeric tubular member, disposed within the first tubular member; a steerable portion comprising the first and second flexible polymeric tubular members, the first and second flexible polymeric tubular members configured to preferentially bend in the steerable portion, and wherein the first and second flexible polymeric tubular members are permanently axially fixed relative to one another at a fixation location distal to the steerable portion, wherein the second flexible polymeric tubular member, in a cross section in the steerable portion, has a first section of a first material with a first durometer and a second section of a second material with a second durometer different than the first durometer; and an external controller that is configured to, upon actuation, axially move at least one of the first and second flexible polymeric tubular members relative to the other at a location proximal to the steerable portion to cause relative axial movement between the first and second tubular members in the steerable portion, wherein the relative axial movement between the first and second flexible polymeric tubular members causes the steerable portion to bend.