Evaluation of an experimental electrohydraulic discharge device for extracorporeal shock wave lithotripsy: Pressure field of sparker array

• DOI: 10.1121/1.5010901
• Publication Date: 2017-11-20T16:52:35Z
• Authors: Guangyan Li; Bret A. Connors; Ray B. Schaefer; John J. Gallagher; Andrew P. Evan
• Keywords: Hydrophone

In this paper, an extracorporeal shock wave source composed of small ellipsoidal sparker units is described. The were arranged in array designed to produce a coherent sufficient strength fracture kidney stones. objective paper was measure the acoustical output 18 individual and compare commercial lithotripters. Representative waveforms acquired with fiber-optic probe hydrophone at geometric focus indicated that produces (P+ ∼40–47 MPa, P− ∼2.5–5.0 MPa) similar waves produced by Dornier HM-3 or Compact S. array's pressure field map also appeared measurements from Compared HM-3, electrohydraulic technology more consistent SW pulse (shot-to-shot positive value standard deviation ±4.7 MPa vs ±3.3 MPa).