US 11,890,100 B2
Deflectable mapping guide sheath for his bundle pacing
Scott A. Kramer, Minneapolis, MN (US); Erich W. Stoermer, Plymouth, MN (US); Joshua C. Conway, Wayzata, MN (US); Gene A. Bornzin, Simi Valley, CA (US); Zoltan Somogyi, Simi Valley, CA (US); Amy L. Hanenburg, Minneapolis, MN (US); Emily Weiss, Minneapolis, MN (US); Paul A. Belk, Maple Grove, MN (US); and Patrick P. Senarith, Maple Grove, 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 Jul. 29, 2022, as Appl. No. 17/877,408.
Application 17/877,408 is a continuation of application No. 16/967,249, previously published as PCT/US2019/018329, filed on Feb. 15, 2019.
Claims priority of provisional application 62/743,460, filed on Oct. 9, 2018.
Claims priority of provisional application 62/710,431, filed on Feb. 16, 2018.
Prior Publication US 2022/0361796 A1, Nov. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/318 (2021.01); A61B 5/287 (2021.01); A61M 25/01 (2006.01); A61N 1/05 (2006.01)
CPC A61B 5/318 (2021.01) [A61B 5/287 (2021.01); A61M 25/0136 (2013.01); A61M 25/0147 (2013.01); A61N 1/056 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A delivery device for delivering a pacing lead to the His bundle of a patient's heart, the delivery device comprising:
a handle;
an elongated sheath having a proximal end connected to the handle and a distal end remote from the handle, a distal portion of the sheath having in series from the distal end a first relatively rigid section, a first relatively flexible section, a second relatively rigid section, a second relatively flexible section and a third relatively rigid section, the first relatively flexible section being spaced apart from the second relatively flexible section such that the distal portion is deflectable to a dual hinged configuration, the first, second, and third relatively rigid sections being formed from a first polymer having a first Shore D hardness, and the first and second relatively flexible sections being formed from a second polymer having a second Shore D hardness less than the first Shore D hardness;
a pull wire having a distal end connected to the sheath distally of the first relatively flexible section and extending to a proximal end of the pull wire; and
a plurality of mapping electrodes positioned at the distal end of the sheath,
wherein the distal end of the sheath has a distal tip, and the mapping electrodes include two electrodes that diametrically oppose one another at a position spaced from the distal tip of the sheath.