| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fluid injection device including an injection pipe and a suction pipe. <P>SOLUTION: The fluid injection device 1 includes: a pulsating flow generation part 20 for converting fluid to pulsating flow; the suction pipe 80 projected in the pulsating flow generation part 20; the injection pipe 70 eccentrically inserted to the suction pipe 80 so that the outer peripheral surface is brought into contact with the inner peripheral surface of the suction pipe 80 and provided with an injection opening 72 communicating with the pulsating flow generation part 20; and a suction flow path 81 and a suction opening 82 formed between the inner peripheral surface of the suction pipe 80 and the outer peripheral surface of the injection pipe 70. The injection pipe 70 is fixed to the inner peripheral surface of the suction pipe 80 near the injection opening 72. Thus, the suction flow path 81 and the suction opening 82 are enlarged to increase the suction capacity of excised tissue, and the vibration of the distal end part (injection opening 72) of the injection pipe 70 is suppressed. <P>COPYRIGHT: (C)2011,JPO&INPIT |
