| 摘要 |
<P>PROBLEM TO BE SOLVED: To effectively penetrate a blood clot and the like with a pulsation flow while removing the whole of blood clot and the like by emitting a jet of a fluid widely. <P>SOLUTION: An auxiliary jet orifice is opened to a direction different from a direction of a jet orifice emitting a pulsation flow, and it is connected to an auxiliary fluid path which is different from a connection fluid path connected to the jet orifice. The fluid is continuously emitted from the auxiliary jet orifice by continuously sending the fluid to the auxiliary fluid path. The result is that the pressure of pulsation flow does not decrease because of the auxiliary jet orifice, and the cutting performance of the pulsation flow is kept while the fluid can be emitted from the auxiliary jet orifice within the area where the pulsation flow can not be emitted. Then, the auxiliary jet orifice can keep the cutting performance by continuously emitting the jet of the fluid even when the pressure of the fluid disperses and decreases by emitting the jet of the fluid widely. As a result, the blood clot and the like can be penetrated effectively by the pulsation flow while the whole of blood clot and the like can be removed by emitting the jet of the fluid widely. <P>COPYRIGHT: (C)2011,JPO&INPIT |
