Electronic device to improve the efficiency of extracorporeal lithotripters
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Redalyc
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2004
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| _version_ | 1876457110396469248 |
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| author | Francisco Fernández Escobar |
| author_facet | Francisco Fernández Escobar |
| contents | Electronic device to improve the efficiency of extracorporeal lithotripters Francisco Fernández Escobar Achim Max Loske Mehling J. van Cauwelaert F. E. Prieto Ingeniería ESWL Cavitation Tandem shock waves Piezoelectric shock wave generation The design and construction of autonomous electronic instrumentation to generate fast high voltage discharges (6to 10 kV) on a piezoelectric crystal array, in order to produce underwater shock waves, is described. If properlyfocused, hundreds of these shock waves are capable of destroying renal and ureteral calculi. This clinicaltreatment, developed more than 20 years ago, is known as extracorporeal shock wave lithotripsy (ESWL). Incontrast to standard devices, our system produces two, rather than just one, shock waves with an adjustable delaybetween 50 and 950 µsec. The objective is to enhance cavitation-induced damage to the kidney stone withoutincreasing tissue trauma. Kidney-stone model fragmentation tests, obtained with the novel system, were comparedto those achieved with a conventional piezoelectric shock wave generator, showing a 20% increase infragmentation efficiency. Initial in vivo studies with animals have shown reduced tissue trauma. 2004 artículo científico 1665-6423 https://www.redalyc.org/articulo.oa?id=47420208 en http://www.redalyc.org/revista.oa?id=474 Journal of Applied Research and Technology application/pdf Universidad Nacional Autónoma de México Journal of Applied Research and Technology (México) Num.2 Vol.2 |
| format | Artículo científico |
| id | redalyc_47420208 |
| institution | Redalyc |
| language | en |
| publishDate | 2004 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Electronic device to improve the efficiency of extracorporeal lithotripters Francisco Fernández Escobar Ingeniería ESWL Cavitation Tandem shock waves Piezoelectric shock wave generation Electronic device to improve the efficiency of extracorporeal lithotripters Francisco Fernández Escobar Achim Max Loske Mehling J. van Cauwelaert F. E. Prieto Ingeniería ESWL Cavitation Tandem shock waves Piezoelectric shock wave generation The design and construction of autonomous electronic instrumentation to generate fast high voltage discharges (6to 10 kV) on a piezoelectric crystal array, in order to produce underwater shock waves, is described. If properlyfocused, hundreds of these shock waves are capable of destroying renal and ureteral calculi. This clinicaltreatment, developed more than 20 years ago, is known as extracorporeal shock wave lithotripsy (ESWL). Incontrast to standard devices, our system produces two, rather than just one, shock waves with an adjustable delaybetween 50 and 950 µsec. The objective is to enhance cavitation-induced damage to the kidney stone withoutincreasing tissue trauma. Kidney-stone model fragmentation tests, obtained with the novel system, were comparedto those achieved with a conventional piezoelectric shock wave generator, showing a 20% increase infragmentation efficiency. Initial in vivo studies with animals have shown reduced tissue trauma. 2004 artículo científico 1665-6423 https://www.redalyc.org/articulo.oa?id=47420208 en http://www.redalyc.org/revista.oa?id=474 Journal of Applied Research and Technology application/pdf Universidad Nacional Autónoma de México Journal of Applied Research and Technology (México) Num.2 Vol.2 |
| title | Electronic device to improve the efficiency of extracorporeal lithotripters |
| topic | Ingeniería ESWL Cavitation Tandem shock waves Piezoelectric shock wave generation |
| url | https://www.redalyc.org/articulo.oa?id=47420208 |