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In vitro assessment of a novel spearheaded pneumatic intracorporeal lithotriptor
Ashish Rawandale-Patil1, Atul Mulay, Chandrahas Kurane
1Institute of Urology, Dhule, India. instituteofurology@gmail.com
Background And Purpose:
Intracorporeal lithotripsy is an important modality used for stone pulverization. To improve the pulverization properties of intracorporeal lithotriptors, a novel intracorporeal "spearheaded lithotriptor" was designed by our institute. It was compared in vitro with the conventional lithotriptor.
Materials And Methods:
The pulverization and propulsion dynamics were evaluated at various pressure settings on an in vitro bench arrangement with phantom stones. Lateral displacement during pulverization was also compared.
Results:
The spearheaded lithotriptor had a better first hit (P<0.001) and follow-up hit dynamics (P<0.01). Stone propulsion and lateral displacement were low for the spearheaded lithotriptor at all pressure settings (P<0.05).
Conclusion:
The spearheaded lithotriptor improved stone pulverization without increasing the risk of stone migration. Further clinical evaluation of this novel probe is necessary.
