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Related Experiment Videos

Initial use of Browne Pneumatic Impactor

E R Tawfiek1, M Grasso, D H Bagley

  • 1Department of Urology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, PA, USA.

Journal of Endourology
|April 1, 1997
PubMed
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The Browne Pneumatic Impactor (BPI) safely and effectively fragments urinary calculi in all patients. This new pneumatic mechanical lithotripter achieved stone-free status without complications in initial outpatient studies.

Area of Science:

  • Urology
  • Medical Devices
  • Nephrology

Background:

  • Urinary calculi (stones) pose a significant clinical challenge.
  • Existing lithotripsy methods have varying degrees of effectiveness and complication rates.

Purpose of the Study:

  • To evaluate the safety and efficacy of the Browne Pneumatic Impactor (BPI) for urinary stone fragmentation.
  • To assess the BPI's performance across different stone locations and compositions.

Main Methods:

  • Prospective study involving nine patients treated between November 1995 and March 1996.
  • Utilized the BPI through semirigid and flexible fiberoptic endoscopes for intracorporeal lithotripsy.
  • Treated stones located in the bladder, urethra, and ureter (distal and proximal).

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Main Results:

  • Successful fragmentation of urinary calculi in all patients where stones were accessible.
  • The BPI demonstrated effectiveness regardless of stone size or composition.
  • No intraoperative or long-term complications were directly attributed to the BPI.
  • All patients achieved stone-free status at 1-month follow-up with no ureteral obstruction.

Conclusions:

  • The Browne Pneumatic Impactor is a safe, simple, and reliable device for intracorporeal lithotripsy.
  • The BPI effectively fragments even the hardest urinary calculi.
  • The device shows promise for outpatient management of urinary stones using various endoscopic approaches.