US 11,812,993 B2
Flexible torque cable for delivery of medical devices
Brian Perszyk, Shoreview, MN (US); and Caytlin Gale, Minneapolis, MN (US)
Assigned to St. Jude Medical, Cardiology Division, Inc., St. Paul, MN (US)
Filed by St. Jude Medical, Cardiology Division, Inc., St. Paul, MN (US)
Filed on Jan. 28, 2021, as Appl. No. 17/161,416.
Application 17/161,416 is a division of application No. 15/903,432, filed on Feb. 23, 2018, granted, now 10,925,640.
Claims priority of provisional application 62/503,061, filed on May 8, 2017.
Claims priority of provisional application 62/478,883, filed on Mar. 30, 2017.
Claims priority of provisional application 62/462,661, filed on Feb. 23, 2017.
Prior Publication US 2021/0153894 A1, May 27, 2021
Int. Cl. A61B 17/34 (2006.01); A61M 25/09 (2006.01); A61B 17/00 (2006.01); A61B 17/12 (2006.01); A61M 25/00 (2006.01); A61F 2/01 (2006.01)
CPC A61B 17/3468 (2013.01) [A61B 17/0057 (2013.01); A61M 25/09 (2013.01); A61B 17/12113 (2013.01); A61B 17/3415 (2013.01); A61B 17/3439 (2013.01); A61B 2017/00243 (2013.01); A61B 2017/00292 (2013.01); A61B 2017/00575 (2013.01); A61B 2017/00606 (2013.01); A61B 2017/00623 (2013.01); A61B 2017/12095 (2013.01); A61F 2/011 (2020.05); A61M 25/0054 (2013.01); A61M 2025/09133 (2013.01); A61M 2025/09183 (2013.01); A61M 2025/09191 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A delivery device for delivering a medical device to a target site, the delivery device comprising:
an outer sheath; and
a delivery cable positioned within the outer sheath and movable along a longitudinal axis with respect to the outer sheath, the delivery cable comprising:
a flexible inner core;
a proximal outer coil having a first rigidity; and
a distal outer coil surrounding at least a portion of a distal section of the flexible inner core and having a second rigidity less than the first rigidity, thereby reducing bias placed on the medical device by the delivery cable,
wherein the distal outer coil comprises at least one first wound wire having a first wire diameter, and wherein the proximal outer coil comprises at least one second wound wire having a second wire diameter greater than the first wire diameter.