GUIDE WIRE GRIPPING UNIT
FIG13 is a view showing a third modified example of the distal end member
FIG13 is a view showing a third modified example of the distal end member 12. In FIG13, (a) is a view of the distal end member 12C of the third modified example as seen from the distal end side along the longitudinal axis O1, and (b) is a plan view when (a) is a front view of the distal end member 12C. In the distal end member 12C, a concave portion 16d is provided instead of the concave portion 16c of the distal end member 12B of the second modification. The bottom portion of the concave portion 16d is inclined so as to approach the axis Oc of the distal end member 12C from the distal end 12Ca of the distal end member 12C toward the proximal end 12 Cb. In this case, the distance between the bottom portion along one of the pair of side portions of the concave portion 16d in the cross section perpendicular to the longitudinal axis O1 and the outer peripheral surface 16 may increase from the distal end 12Ca toward the proximal end 12Cb. That is, the depth of the concave portion 16d at the distal end 12Ca may be smaller than the depth of the concave portion 16d at the proximal end 12Cb. The pair of side portions of the concave portion 16d are perpendicular to the bottom portion, and are inclined so that the interval therebetween decreases from the distal end 12Ca toward the proximal end 12Cb of the distal end member 12C. Therefore, the opening width of the concave portion 16d at the distal end 12Ca is larger than the opening width of the concave portion 16d at the proximal end 12Cb. The same effect as that of the distal end member 12B of the second modified example described above can be achieved also by the configuration of the distal end member 12C of the third modification.
view
15
space
16
outer peripheral surface
13
first lumen
['1. A guide wire grasping device, comprising: a sheath having a central axis extending along a longitudinal axis; a linear member extending along the longitudinal axis from a proximal end of the sheath to a distal end of the sheath; an operation part that is provided at a proximal end of the linear member and moves the linear member along the longitudinal axis; a grasping member having a contact surface having a peripheral edge surrounded by a distal end, a proximal end, and a pair of side ends, the pair of side ends extending between the distal end and the proximal end, the grasping member extending in a direction along the longitudinal axis; and a support part connected to a distal end of the linear member and fixed to one of the pair of side ends, wherein a gap between the contact surface and an outer peripheral surface of the distal end of the sheath is open at the distal end, the proximal end, and the other of the pair of side ends of the contact surface so that the guide wire is accommodated in the gap from the other of the pair of side ends or the guide wire is released from the gap, and the grasping member is moved to a position facing the outer peripheral surface according to a movement of the linear member and the support part, whereby the guide wire disposed in the gap is grasped between the contact surface and the outer peripheral surface.']