US 12,403,301 B2
Lead for applying electrical stimulation to body organ, and electrode system using same
Eun Kyoung Park, Seoul (KR); Tae Kyung Kim, Seoul (KR); Min Hee Kang, Seoul (KR); and Kyu Sung Lee, Seoul (KR)
Assigned to SAMSUNG LIFE PUBLIC WELFARE FOUNDATION, (KR)
Appl. No. 17/921,960
Filed by SAMSUNG LIFE PUBLIC WELFARE FOUNDATION, Seoul (KR)
PCT Filed Apr. 1, 2021, PCT No. PCT/KR2021/004084
§ 371(c)(1), (2) Date Oct. 27, 2022,
PCT Pub. No. WO2021/221326, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 10-2020-0051334 (KR), filed on Apr. 28, 2020.
Prior Publication US 2023/0173259 A1, Jun. 8, 2023
Int. Cl. A61N 1/05 (2006.01); A61N 1/36 (2006.01); A61N 1/375 (2006.01)
CPC A61N 1/0534 (2013.01) [A61N 1/36125 (2013.01); A61N 1/36128 (2013.01); A61N 1/37514 (2017.08)] 11 Claims
OG exemplary drawing
 
1. A lead implanted in a body to apply electrical stimulation to body organs, the lead comprising:
an electrode wire having one end provided as an insertion portion to be inserted into a body and another end provided as an interface portion for connection with an external device;
a first electrode in the insertion portion to transmit electrical stimulation to body organs;
a second electrode on the interface portion to receive electrical stimulation applied from outside;
a signal line that interconnects the first electrode and the second electrode to transmit electrical stimulation received by the second electrode to the first electrode; and
a ring member disposed on the electrode wire that covers the first electrode and has an opening that exposes the first electrode in a portion of a circumferential direction, and is mounted on the electrode wire to be movable in a longitudinal or circumferential direction with respect to the electrode wire by an external force to adjust an exposure position of the first electrode through the opening,
wherein the ring member is comprised of a plurality of ring members each comprised of an insulating material that prevents exposure of electrical stimulation therethrough and arranged adjacent to each other in a longitudinal direction at the insertion portion of the electrode wire,
wherein each of the plurality of ring members is independently rotatable by at least one of a manual operation member or a controller to selectively adjust its position in the circumferential direction and the position of the opening to expose the first electrode through the opening of each of the plurality of ring members and to provide selective areas of the applied electrical stimulation from the first electrode through the openings.