Patent ID: 11925767
Assignee: KANEKA CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A catheter comprising:
an outer tube member having a lumen extending in a longitudinal direction;
a handle provided on a proximal side of the outer tube member;
a plurality of ring-shaped electrodes provided on the outer tube member, the plurality of ring-shaped electrodes including a negative electrode and a positive electrode;
conducting wires connected to the plurality of ring-shaped electrodes and disposed in the lumen, the conducting wires each having a coating;
an operating wire having a distal end portion fixed to a distal end portion of the outer tube member;
an inner tube member disposed in the lumen;
an elastic member having a distal end portion fixed to the distal end portion of the outer tube member and having a proximal end portion fixed to the inner tube member; and
a tubular member provided on a proximal side relative to the distal end portion of the operating wire, wherein
a first connection point, at which one of said conducting wires is connected to one of the plurality of ring-shaped electrodes, and a second connection point, at which another conducting wire of said conducting wires is connected to another of the plurality of ring-shaped electrodes, are disposed at different locations in a circumferential direction of the outer tube member,
said one of the conducting wires connected to the first connecting point and said another conducting wire of the conducting wires connected to the second connecting point are disposed together in the lumen of the outer tube member,
the operating wire is disposed inside the inner tube member,
the inner tube member and the of wire are disposed in the lumen in which the conducting wires are disposed,
the inner tube member has a protective member disposed on a radially outward position of the inner tube member, and
the operating wire and the elastic member are disposed in an inner cavity of the tubular member.