| 摘要 |
<p>A catheter having a distal end capable of being deflected by operation is an electrode catheter (100) provided with: a catheter shaft (10) which has a flexible portion (10A) at the distal end thereof; a distal end electrode (30); and operating wires (41, 42) which are formed from twisted wires. The operating wires (41, 42) are respectively inserted through lumens (11L, 12L) formed in the flexible portion (10A). In the flexible portion (10A), cylindrical high-rigidity members (51, 52) having center axes (M51, M52) are arranged on a third imaginary plane (P3) so as to face each other across the center axis (M10) of the shaft (10), the third imaginary plane (P3) being formed by rotating a second imaginary plane (P2), which is perpendicular to a first imaginary plane (P1), in the same direction as the direction of twisting of the twisted wires by an angle (θ) about the center axis (M10) of the shaft (10). In the catheter having a distal end capable of being deflected by operation, although the operating wires are formed from the twisted wires, the shape of the flexible portion is capable of being changed on substantially the same plane.</p> |
