Abstract
This paper presents the method to design a novel micro stirrer for high effective dissolution of cerebral thrombus or blood clot. The micro stirrer is a beam with supported one side and the other side is attached to an asymmetrical stirrer. The waves, which were excited by the transducer, propagate through the catheter and impinge to the inclined surface in the stirrer. The reflected waves generate bending mode in the stirrer to dissolve the thrombus. Tip trajectory results are investigated for the simultaneous estimation of all the mode shapes, due to obtain the best drive frequency. It seems that the expected motion is a mode shape which, despite has the bending at tip, there is no significant bending across the catheter. An important parameter has been developed to act as an indicator factor for mode shape detection in simulation analysis. The design algorithm is offered based on the stirrer length and full length of micro stirrer. The accuracy of the estimated design method is evaluated through the some other stirrer length.
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