US 11,998,264 B2
Medical catheters, systems including medical catheters, and methods of positioning medical catheters
Israel Byrd, Richfield, MN (US); and Greg Olson, Elk River, MN (US)
Assigned to St. Jude Medical, Cardiology Division, Inc., St. Paul, MN (US)
Appl. No. 16/635,298
Filed by St. Jude Medical, Cardiology Division, Inc., St. Paul, MN (US)
PCT Filed Aug. 17, 2018, PCT No. PCT/IB2018/056219
§ 371(c)(1), (2) Date Jan. 30, 2020,
PCT Pub. No. WO2019/035071, PCT Pub. Date Feb. 21, 2019.
Claims priority of provisional application 62/547,502, filed on Aug. 18, 2017.
Prior Publication US 2020/0367964 A1, Nov. 26, 2020
Int. Cl. A61B 18/14 (2006.01); A61B 34/20 (2016.01); A61B 18/00 (2006.01)
CPC A61B 18/1492 (2013.01) [A61B 34/20 (2016.02); A61B 2018/00357 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00613 (2013.01); A61B 2018/1407 (2013.01); A61B 2018/1467 (2013.01)] 15 Claims
OG exemplary drawing
 
7. A catheter comprising:
an elongate shaft having a proximal end and a distal end and defining an axis that extends along a y-direction, wherein the y-direction is perpendicular to an x-direction, and wherein a z-direction is perpendicular to both the x-direction and the y-direction; and
a loop subassembly coupled to the distal end of the elongate shaft, the loop subassembly comprising:
a loop coupled at a distal portion of the loop to the distal end of the elongate shaft, wherein, in a neutral position, the loop defines a loop plane which is parallel to the axis of the elongate shaft, wherein the loop plane is an x-y plane extending in both the x-direction and the y-direction, wherein the loop plane is positioned in a different plane than the elongate shaft and is spaced from the elongate shaft along the z-direction, and wherein the loop is selectively deflectable, while maintaining a fixed radius of the loop, within the x-y plane that is the loop plane using at least one pull wire extending through the elongate shaft; and
a plurality of electrodes disposed on the loop.