Catheter handle and distal-end-deflectable catheter

A catheter handle to be attached to a proximal end side of a catheter shaft, comprising:

• a handle body that is formed by combining a first handle member and a second handle member that are divided into two along a longitudinal direction;
• and
• a rotational operation unit that is disposed between the first handle member and the second handle member, that includes a rotary plate that is disc-shaped and that is attached to the handle body so as to be rotatable around a rotation axis perpendicular to the longitudinal direction, and to which each proximal end of a first operation wire and a second operation wire for respectively deflecting a distal end of the catheter shaft in a first direction and in a second direction is coupled,
• wherein the rotational operation unit includes the rotary plate,
• a first spacer member that is disposed between the rotary plate and the first handle member, that is non-rotatably attached to the handle body, and that includes an outer peripheral wall having a shape coinciding with an outer peripheral shape of the rotary plate, and
• a second spacer member that is disposed between the rotary plate and the second handle member, that is non-rotatably attached to the handle body, and that includes an outer peripheral wall having a shape coinciding with the outer peripheral shape of the rotary plate,
• wherein the rotary plate includes a guide mechanism that defines paths of the first operation wire and the second operation wire in the rotational operation unit so that the paths detour along a circumferential direction of the rotary plate, and
• wherein, in the first spacer member and the second spacer member, respectively, guide paths for inserting tube components extending out from a proximal end of the catheter shaft to an inside of the handle body so that the tube components do not contact the rotary plate are formed.