| abstract |
Apparatus for pumping fluid from one location to another via generation of bubbles in fluid, and expansion and callapse thereof, are described. These apparatus deliver repetitive pulses of radiation to a fluid to form bubbles therein. The expansion and collapse of the bubbles cause fluid motion or pumping. This pumping can be used to facilitate removal of a total or partial occlusion in a body passage by a variety of mechanisms. The apparatus are flexible to facilitate use within a body passage. |