US 12,246,181 B2
Dual chamber pacing
Matthew D. Bonner, Plymouth, MN (US); Kathryn Hilpisch, Cottage Grove, MN (US); Kaileigh E. Rock, Saint Paul, MN (US); and Jean M. Carver, Blaine, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Mar. 8, 2022, as Appl. No. 17/653,959.
Claims priority of provisional application 63/170,051, filed on Apr. 2, 2021.
Prior Publication US 2022/0314001 A1, Oct. 6, 2022
Int. Cl. A61N 1/368 (2006.01); A61N 1/05 (2006.01)
CPC A61N 1/3684 (2013.01) [A61N 1/0573 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A medical system comprising:
an implantable medical device that carries a first electrode on a distal end of the implantable medical device and a return electrode, wherein the implantable medical device is configured to be positioned within a heart;
a leadlet including a proximal end and a distal end, wherein the proximal end is attached to the implantable medical device, wherein the distal end is configured to penetrate tissue of the heart, wherein the leadlet carries a second electrode, and wherein a body of the leadlet between the proximal end and the distal end is configured to flex when the distal end is implanted in the tissue of the heart,
wherein the leadlet includes a bearing structure configured to receive an elongate member, and wherein the distal end of the leadlet is configured to move in a distal direction when the bearing structure receives the elongate member and a distal force is exerted on the elongate member; and
a fixation device attached to the implantable medical device, wherein the fixation device is configured to affix the implantable medical device to the heart.