Abstract
Aspiration thrombectomy supported by an oscillating metal probe within the catheter allows continuous aspiration of large thrombi without catheter obstruction. Thrombus aspiration assisted by an ultrasound-driven probe (frequency 26 kHz) and by an electric motor-driven probe (frequency 40 Hz) was compared in two differentin vitro models: aspiration of large clots from a Petri dish and recanalization of thrombotic occlusions in a flow model. Comparable results were found for a 1 mm ultrasound-driven probe and a 0.5 mm motor-driven probe. The motor-driven device, however, seems to be more appealing forin vivo application because of its simplicity, probe flexibility, absence of thermal effects, and low cost.
References
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Schmitz-Rode, T., Günther, R.W. Oscillating probe aspiration thrombectomy: ComparativeIn vitro evaluation of two concepts. Cardiovasc Intervent Radiol 15, 151–153 (1992). https://doi.org/10.1007/BF02735577
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DOI: https://doi.org/10.1007/BF02735577