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EFFECT OF MECHANICAL VIBRATION ON KINETICS OF SOLUTE ADSORPTION.
Blood Purification 2024 January 28
INTRODUCTION Hemoadsorption with new sorbent cartridges is an emerging extracorporeal blood purification technique. Flow distribution inside the sorbent is one of the main issues concerning the device's performance and optimal sorbent utilization. In this experiment, we aimed to investigate the efficacy of vibration during adsorption by measuring the removal of Vancomycin. METHODS In this experimental study, 1,000 mL of saline with 10 g of Vancomycin was circulated in a closed circuit (set flow of 250 mL/min) simulating a hemoadsorption blood run using HA380 minimodule cartridge containing 75 g of wet resin. This vibration model was implemented with a damping head device installed in front of the adsorption cartridge during the experiment. The kinetics of the Vancomycin were assessed by removal ratio over 120 minutes. RESULTS We found no difference between the two models. Adsorption with and without vibration did not differ significantly for partial reduction ratios, overall amount of adsorbed molecule, or adsorption kinetics. CONCLUSION The current design and structure of the minimodule cartridge demonstrated no difference in small-middle solute removal. Further improvement with the addition of mechanical vibration to the device was not observed.
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