Guide wire

Abstract

The objective is to provide a guide wire that can reliably shape its tip in a specific direction. [Solution] The guide wire 1 comprises a core shaft 11, a coil body 21 in which strands w are wound so as to cover the tip of the core shaft 11, and a tip fixing portion 31 in which the tip of the core shaft 11 and the tip of the coil body 21 are fixed to each other, wherein the coil body 21 has a group of joints A in which adjacent strands w are continuously joined together along the long axis direction of the coil body 21, and the coil body 21 has only one group of joints A1(A) on the extension line of the group of joints A1 in the long axis direction of the coil body 21.

Claims

1. Core shaft (11) and A coil body (21, 22, 23) in which strands of wire are wound so as to cover the tip of the core shaft (11), A guide wire (1, 2, 3) comprising a tip fixing portion (31) where the tip of the core shaft (11) and the tips of the coil bodies (21, 22, 23) are fixed to each other, The coil body (21, 22, 23) has a group of joints (A, A1, A21, A22, A23, A31, A32) in which adjacent strands (w) are continuously joined together along the long axis of the coil body (21, 22, 23), The coil bodies (21, 22, 23) are guide wires (1, 2, 3) having only one of the group of joints (A, A1, A21, A22, A23, A31, A32) on the extension line of the group of joints (A, A1, A21, A22, A23, A31, A32) in the longitudinal axis direction of the coil bodies (21, 22, 23).

2. The guide wire (2, 3) according to claim 1, wherein the coil body (22, 23) has a plurality of the group of joints (A21, A22, A23, A31, A32) that are independent of each other in the circumferential direction of the coil body (22, 23).

3. The coil body (23) has only two of the group of joints (A31, A32) that are independent of each other in the circumferential direction of the coil body (23), The guide wire (3) according to claim 1, wherein the two aforementioned joints (A31, A32) are provided on portions of the coil body (23) that face each other across the long axis of the core shaft (11).

4. The guide wire (1, 2, 3) according to any one of claims 1 to 3, wherein at least one of the group of joints (A, A1, A21, A22, A23, A31, A32) extends from the tip to the base end of the coil body (21, 22, 23).

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