| 主权项 |
1. A balloon catheter comprising:
a catheter tube comprising a proximal end portion, a distal end portion, and a single lumen extending between the proximal end portion and the distal end portion in a longitudinal direction; a guide wire extending through the catheter tube to be disposed on the lumen; a connector having a fluid injection passage extending therethrough in a longitudinal direction, the connector being coupled to the proximal end portion of the catheter tube such that the fluid injection passage communicates with the lumen, the connector comprising a guide wire holder, the guide wire holder comprising a holder body supporting a proximal end portion of the guide wire in a central portion of the fluid injection passage and at least one support arm supporting the holder body on an inner wall of the fluid injection passage; and a balloon disposed on the distal end portion of the catheter tube to be inflatable by fluid injected into the lumen from the fluid injection passage, wherein the connector comprises: a first connector body coupled to the proximal end portion of the catheter tube, the first connector body having a first passage communicating with the lumen to form a portion of the fluid injection passage; and a second connector body coupled to the first connector body, the second connector body having a second passage communicating with the first passage to form the fluid injection passage together with the first passage, the guide wire holder being provided on the second passage, wherein the guide wire holder is disposed on a distal end portion of the second passage such that cross-sections of portions of the second passage except for the distal end portion of the second passage are prevented from being reduced, and wherein a plurality of support arms are disposed around the holder body to be spaced apart from each other. |
