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Clinical experience with electromechanical impactor

S P Dretler1

  • 1Massachusetts General Hospital, Boston.

The Journal of Urology
|November 1, 1993
PubMed
Summary
This summary is machine-generated.

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The electromechanical impactor safely and effectively fragments ureteral stones. This device broke most calculi into small pieces, requiring minimal secondary procedures for ureteral stone removal.

Area of Science:

  • Urology
  • Biomedical Engineering
  • Minimally Invasive Surgery

Background:

  • Ureteral calculi (stones) pose a significant clinical challenge.
  • Current fragmentation methods have limitations.
  • Novel devices are needed for effective and safe stone removal.

Purpose of the Study:

  • To evaluate the safety and efficacy of a novel electromechanical impactor for ureteral stone fragmentation.
  • To assess the device's performance in a clinical setting.

Main Methods:

  • A clinical trial involving 15 patients (16 ureters) with ureteral calculi was conducted.
  • The electromechanical impactor, a 3.0F electrohydraulic electrode, was used.
  • The device was placed within a 9.5F to 10.0F ureteroscope.

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Main Results:

  • 13 out of 16 calculi were successfully fragmented into pieces smaller than 5 mm.
  • The device demonstrated no evidence of ureteral wall injury, abrasion, or perforation.
  • Average fragmentation required 764 pulses, with device life ranging from 600 to 800 pulses.

Conclusions:

  • The electromechanical impactor is a safe and effective tool for ureteral stone fragmentation.
  • The device shows promise for improving outcomes in ureteral stone treatment.
  • Further studies may explore its application in complex stone cases.