US 11,052,226 B2
Steerable medical devices, systems, and methods of use
Amr Salahieh, Saratoga, CA (US); Jonah Lepak, Santa Cruz, CA (US); Emma Lepak, Santa Cruz, CA (US); Tom Saul, Moss Beach, CA (US); Jean-Pierre Dueri, Los Gatos, CA (US); Joseph Creagan Trautman, Sunnyvale, CA (US); Christopher T. Cheng, Los Altos, CA (US); Richard Joseph Renati, Los Gatos, CA (US); Colin Mixter, Santa Clara, CA (US); and Marc Bitoun, Santa Cruz, CA (US)
Assigned to Kalila Medical, Inc., Campbell, CA (US)
Filed by Kalila Medical, Inc., Campbell, CA (US)
Filed on Apr. 25, 2016, as Appl. No. 15/138,050.
Claims priority of provisional application 62/152,741, filed on Apr. 24, 2015.
Prior Publication US 2017/0080186 A1, Mar. 23, 2017
Int. Cl. A61M 25/01 (2006.01); A61B 1/00 (2006.01); A61B 1/005 (2006.01); A61M 25/00 (2006.01)
CPC A61M 25/0147 (2013.01) [A61B 1/0052 (2013.01); A61B 1/0055 (2013.01); A61B 1/00147 (2013.01); A61M 25/0053 (2013.01); A61M 25/0136 (2013.01); A61M 25/0138 (2013.01); A61M 25/005 (2013.01); A61M 25/0012 (2013.01); A61M 25/0141 (2013.01); A61M 2025/0004 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A steerable medical device, comprising:
an inner flexible tubular member with a polymeric inner spine of a first material extending along a length of a steerable portion and having a durometer greater than a second segment material extending along the length of the steerable portion;
an outer flexible tubular member axially fixed to the inner flexible tubular member at a fixation location distal to the steerable portion, the outer tubular member having a polymeric outer spine that is offset from the inner spine having a linear segment of a first material extending less than 180 degrees around the outer tubular member and having a durometer greater than a second segment material extending more than 180 degrees around the outer tubular member,
a linear reinforcing member extending within at least one of the first material of a greater durometer of said polymeric inner spine or the first material of a greater durometer of said polymeric outer spine; and
an external controller operatively interfacing with the inner and outer flexible tubular members to put one of the inner and outer tubular members in tension and the other in compression, to steer the steerable portion.