| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem in insetting an injection tube into an outer sheath, for injecting an acoustic medium wherein it is difficult to grasp the injection amount of the acoustic medium from the outside in inserting the injection tube, the acoustic medium, the outer sheath constituting a probe unit all of which are formed of transparent materials. SOLUTION: A first injection tube 12 is colored and an outer sheath 22 is formed of a material having transparency. This medium injection set is so constituted that the first injection tube 12 is inserted into the outer sheath 22 and, when the acoustic medium is inserted therein, its injection amount can be easily recognized from the outside through the outer sheath 22. |
