Abstract: To provide a catheter having electrodes to be subjected to application of voltages different from each other in polarity. An outer tube member (3) having a lumen (2); a handle provided on a proximal side of the outer tube member (3); a plurality of electrodes (5) provided on the outer tube member (3); conducting wires (6) connected to one or more of the electrodes (5) and disposed in the lumen (2), the conducting wires (6); and an operating wire (7) having a distal end portion fixed to a distal end portion of the outer tube member (3), wherein one of the electrodes (5a) is connected to a conducting wire (6a) at a connection point, which is different from a connecting point, where another electrode (5b) is connected to another conducting wire (6b), in a circumferential direction of the outer tube member (3).

Abstract: A defibrillation system having a defibrillation catheter and a power supply part; a first connector member (11) is connected to a handle member; a second connector member (21) is connected to the power supply part; the first connector member (11) has a first insulating member (12), first electrodes (13) protruding from the first insulating member (12), and a first tubular member (14); the second connector member (21) has a second insulating member (22) having longitudinal holes, second electrodes (23) disposed on an inner wall of the longitudinal holes, and a second tubular member (24); the first tubular member (11) has a first space (15) being to contain the second tubular member (24), a second space (16) not containing the first insulating member (12) but containing the first electrodes (13), and a third space (17) containing neither the first insulating member (12) nor the first electrodes (13).

Abstract: A defibrillation system having a defibrillation catheter and a power supply part; a first connector member (11) is connected to a handle member; a second connector member (21) is connected to the power supply part; the first connector member (11) has a first insulating member (12), first electrodes (13) protruding from the first insulating member (12), and a first tubular member (14); the second connector member (21) has a second insulating member (22) having longitudinal holes, second electrodes (23) disposed on an inner wall of the longitudinal holes, and a second tubular member (24); the first tubular member (11) has a first space (15) being to contain the second tubular member (24), a second space (16) not containing the first insulating member (12) but containing the first electrodes (13), and a third space (17) containing neither the first insulating member (12) nor the first electrodes (13).

Abstract: A catheter handle (1) includes handle body (2), and rotary member (3) being free to rotate with respect to the handle body (2) and connected to the wire. The handle body (2), in a planar view from a rotation axis direction of the rotary member (3), has second space (12) for the conductive wire is located from more distal side to more proximal side than first space (11) for the rotary member (3). The operating part (4) of the rotary member (3) is disposed on one side, and the second space (12) is disposed on another side, in the width direction of the handle (1). Length L1 from the center of the rotation axis to the rotary member (3) on the one side is longer than length L2 from the center of the rotation axis to the rotary member (3) on the another side.

Abstract: To provide a catheter having electrodes to be subjected to application of voltages different from each other in polarity. An outer tube member (3) having a lumen (2); a handle provided on a proximal side of the outer tube member (3); a plurality of electrodes (5) provided on the outer tube member (3); conducting wires (6) connected to one or more of the electrodes (5) and disposed in the lumen (2), the conducting wires (6); and an operating wire (7) having a distal end portion fixed to a distal end portion of the outer tube member (3), wherein one of the electrodes (5a) is connected to a conducting wire (6a) at a connection point, which is different from a connecting point, where another electrode (5b) is connected to another conducting wire (6b), in a circumferential direction of the outer tube member (3).