US 11,864,901 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)
Appl. No. 16/967,249
Filed by St. Jude Medical, Cardiology Division, Inc., St. Paul, MN (US)
PCT Filed Feb. 15, 2019, PCT No. PCT/US2019/018329
§ 371(c)(1), (2) Date Aug. 4, 2020,
PCT Pub. No. WO2019/161286, PCT Pub. Date Aug. 22, 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 2021/0045644 A1, Feb. 18, 2021
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)] 14 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;
a plurality of mapping electrodes positioned at the distal end of the sheath;
an electrical conductor extending from each of the plurality of mapping electrodes; and
a tube extending along a length of the elongated sheath, wherein the electrical conductors extend through the tube.