| 摘要 |
A fluid feeder (1,31) which feeds a fluid into a balloon (4) made of an elastic material so as to inflate, the fluid feeder provided with: a cylinder (12) that is formed in a cylindrical shape provided with a first end (12A) and a second port (12B) on each end thereof and contains the fluid; a plunger (13) that is inserted into the cylinder via the second end in a freely advancing and retracting manner in an axial direction, in order to push out the fluid contained in the cylinder from the first end to the outside of the cylinder; an adjustor (14, 32) that is attached to the plunger and regulates a moving distance of the plunger so as to inflate the balloon to a predetermined diameter; and a fixing portion (15) that is provided on the cylinder and fixes the plunger onto the cylinder to a position which corresponds to the moving distance regulated by the adjustor, wherein:
the adjustor has a plurality of engaging projections (18, 33) which regulates the moving distance corresponding to a plurality of the different inflated diameters, and the fixing portion has an engaged portion (19) which engages with the engaging projections to fix the plunger. |
