US 12,256,985 B2
Medical device
Tuo Zhou, Yokohama (JP); and Itaru Okubo, Kanagawa (JP)
Assigned to TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed by TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 24, 2021, as Appl. No. 17/484,247.
Application 17/484,247 is a continuation of application No. PCT/JP2020/011907, filed on Mar. 18, 2020.
Claims priority of application No. 2019-058929 (JP), filed on Mar. 26, 2019.
Prior Publication US 2022/0008128 A1, Jan. 13, 2022
Int. Cl. A61B 18/14 (2006.01); A61B 18/00 (2006.01); A61M 25/00 (2006.01); A61B 18/08 (2006.01); A61B 18/10 (2006.01); A61B 18/12 (2006.01); A61B 18/24 (2006.01); A61M 25/09 (2006.01); A61M 25/10 (2013.01)
CPC A61B 18/1492 (2013.01) [A61B 2018/00071 (2013.01); A61B 2018/00077 (2013.01); A61B 2018/00083 (2013.01); A61B 2018/0016 (2013.01); A61B 2018/00172 (2013.01); A61B 2018/00178 (2013.01); A61B 2018/00214 (2013.01); A61B 2018/0022 (2013.01); A61B 2018/00267 (2013.01); A61B 2018/00279 (2013.01); A61B 2018/00285 (2013.01); A61B 2018/00345 (2013.01); A61B 2018/00351 (2013.01); A61B 2018/00369 (2013.01); A61B 2018/00375 (2013.01); A61B 2018/00577 (2013.01); A61B 18/082 (2013.01); A61B 18/10 (2013.01); A61B 18/12 (2013.01); A61B 18/1206 (2013.01); A61B 18/14 (2013.01); A61B 18/1402 (2013.01); A61B 2018/1475 (2013.01); A61B 18/24 (2013.01); A61M 2025/0004 (2013.01); A61M 25/0009 (2013.01); A61M 25/0012 (2013.01); A61M 2025/0031 (2013.01); A61M 25/005 (2013.01); A61M 25/09 (2013.01); A61M 2025/09008 (2013.01); A61M 25/0905 (2013.01); A61M 25/10 (2013.01); A61M 25/1018 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A medical device comprising:
an elongated shaft portion, the elongated shaft portion including a lumen that communicates with an open distal end of the elongated shaft portion;
a plurality of electrodes disposed at a distal end portion of the elongated shaft portion and extending along a longitudinal axis direction of the elongated shaft portion, the plurality of electrodes being deformable in a radial direction of the elongated shaft portion;
a plurality of conductive wires configured to convey electricity to the plurality of electrodes, the plurality of conductive wires extending from a proximal side of the shaft portion to a distal side of the elongated shaft portion;
wherein the elongated shaft portion includes a first tubular body defining the lumen formed inside of the first tubular body, and a second tubular body that covers an outer peripheral surface of the first tubular body, the second tubular body being coaxially disposed at the first tubular body;
wherein each the plurality of conductive wires includes an embedded portion that is disposed and sandwiched between the first tubular body and the second tubular body;
wherein the first tubular body, the second tubular body and the embedded portion extend to a distal end portion of the plurality of electrodes at an inner side of the plurality of electrodes and at an outer side of the lumen of the first tubular body, each of the plurality of conductive wires being electrically connected to a respective one of the electrodes at a distal side of the respective electrode.