US 12,465,721 B2
Controllable expandable catheter
Gregory K. Olson, Elk River, MN (US); Rishi Manda, Stillwater, MN (US); Travis Dahlen, Forest Lake, MN (US); Troy T. Tegg, Elk River, MN (US); Brian M. Monahan, Elk River, MN (US); and Russell D. Terwey, St. Michael, 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 Sep. 28, 2023, as Appl. No. 18/477,342.
Application 18/477,342 is a continuation of application No. 16/767,081, granted, now 11,813,410, previously published as PCT/US2018/062865, filed on Nov. 28, 2018.
Claims priority of provisional application 62/743,389, filed on Oct. 9, 2018.
Claims priority of provisional application 62/591,278, filed on Nov. 28, 2017.
Prior Publication US 2024/0033470 A1, Feb. 1, 2024
Int. Cl. A61B 18/00 (2006.01); A61B 18/12 (2006.01); A61B 18/14 (2006.01); A61M 25/00 (2006.01); A61M 25/01 (2006.01); A61M 25/10 (2013.01); A61N 1/05 (2006.01); A61N 1/32 (2006.01); A61N 1/37 (2006.01); A61B 17/00 (2006.01); A61B 18/02 (2006.01); A61B 34/00 (2016.01)
CPC A61M 25/0026 (2013.01) [A61M 25/0009 (2013.01); A61M 25/0032 (2013.01); A61M 25/0144 (2013.01); A61M 25/10 (2013.01); A61B 2017/00327 (2013.01); A61B 2017/00867 (2013.01); A61B 2018/00357 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00791 (2013.01); A61B 2018/00821 (2013.01); A61B 2018/0212 (2013.01); A61B 2018/1405 (2013.01); A61B 18/1492 (2013.01); A61B 34/25 (2016.02); A61B 2218/002 (2013.01); A61M 2025/0035 (2013.01); A61M 2025/0036 (2013.01); A61M 2025/0037 (2013.01); A61M 25/0045 (2013.01); A61M 2025/0046 (2013.01); A61M 25/0054 (2013.01); A61M 2025/0063 (2013.01); A61M 25/0136 (2013.01); A61M 25/0141 (2013.01); A61M 25/0147 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An electrophysiological catheter comprising:
a handle comprising a control mechanism;
a catheter shaft comprising a catheter shaft proximal end and a catheter shaft distal end, wherein the catheter shaft proximal end is connected to the handle;
an expandable structure comprising elongated splines and a distal hub, wherein each of the elongated splines comprises a shape memory material and an interactive element disposed on a distal portion of the respective spline, wherein each of the elongated splines comprises a respective spline proximal end and a spline distal end, wherein each of the spline proximal ends is connected to the catheter shaft distal end, and wherein each of the spline distal ends is connected to the distal hub; and
a deflection control member connected to the distal hub, wherein the control mechanism is drivingly coupled to the distal hub via the deflection control member and operable to selectively vary a position of the distal hub relative to the catheter shaft distal end to selectively vary an amount of expansion of the expandable structure, wherein a shape of the expandable structure is produced via a combination of the shape memory material and the position of the distal hub relative to the catheter distal end,
wherein the expandable structure transitions from a first configuration to a second configuration, wherein the first configuration is a collapsed arrangement, and the second configuration is an expanded arrangement, wherein, in the expanded arrangement, distal portions of each of the elongated splines are parallel to contact tissue such that each interactive element disposed on the distal portion of the respective spline is disposed in a plane perpendicular to a longitudinal axis of the catheter shaft.