Intermittent irrigation system for dissolution of renal calculi monitored by computer

An intermittent irrigation system was tested in vitro and in a clinical case. In vitro experiments showed that the intermittent irrigation was more efficient to dissolve calculi compared to the continuous irrigation. The pelvic irrigation was performed clinically by a cystoscopically passed angiographic catheter. The system could be operated in constant low pressure without supervision. The result shows that this system will be safe and valuable for pelvic irrigation.