PMID: 11342924May 9, 2001Paper

The stone cone: a new generation of basketry

The Journal of Urology
S P Dretler

Abstract

We designed a device to minimize ureteral stone migration during intracorporeal lithotripsy, decrease the likelihood of stone and/or basket entrapment, and extract whole stones and fragments. Nitinol and stainless steel wires were configured into expandable tapered cones, which were placed cephalad to in vitro and in vivo concretions, and used to trap and extract stones as well as other test material. Safety features were evaluated by measuring the release of ball bearings and the tension needed to unwind the coils of the cone, which were greater than 4 mm. in diameter. We treated 4 patients with ureteral calculi using the Stone Conedagger to prevent migration and extract fragments. The cone-shaped devices expanded to occlude the test devices and human ureters, and prevented stone migration. They extracted whole concretions and fragments greater than 1.5 mm. The cone-shaped basket released a 5.5 mm. ball bearing at an average 0.127 pounds of tension when pulled through a 5 mm. plastic orifice. Coils greater than 4 mm. in diameter were straightened at a tension of 0.10 to 0.14 pounds. Stone migration during intracorporeal lithotripsy was prevented in the 4 patients with ureteral calculi, in whom large and small fragments were sa...Continue Reading

References

Jun 1, 1973·British Journal of Urology·J Hodge
Oct 23, 1998·The Journal of Urology·M Grasso, D Bagley
Jul 16, 1999·Journal of Endourology·E A el-Gabry, D H Bagley
Oct 12, 2000·The Journal of Urology·J M Teichman, A D Kamerer
Oct 13, 2000·Journal of Endourology·S P Dretler

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Citations

Dec 31, 2004·Urological Research·N P PardalidisE V Kosmaoglou
Mar 7, 2007·World Journal of Urology·Sean Pierre, Glenn M Preminger
Apr 12, 2011·International Urology and Nephrology·Murat BinbayAhmet Yaser Muslumanoglu
Feb 14, 2006·Nature Clinical Practice. Urology·Stephen P Dretler
Jan 22, 2008·Urologia Internationalis·Maurizio Buscarini, Michael Conlin
May 27, 2009·Indian Journal of Urology : IJU : Journal of the Urological Society of India·Timothy HoldenMonoj Monga
Nov 20, 2012·The Journal of Urology·Michal Ursiny, Brian H Eisner
Sep 22, 2012·Actas urologicas españolas·W R MolinaF J Kim
May 23, 2012·Urology·Carl SarkissianManoj Monga
Apr 21, 2007·Urology·Brian H EisnerStephen P Dretler
Aug 27, 2004·BJU International·Marij Smit, Paul C M S Verhagen
Mar 15, 2006·European Urology·Jean J M C H de la RosetteJoseph W Segura
Mar 26, 2004·The Urologic Clinics of North America·Bradley H Rosenberg, Timothy D Averch
Apr 26, 2006·Urology·W Patrick SpringhartGlenn M Preminger
Apr 13, 2004·Current Opinion in Urology·Demetrius H BagleyIlia S Zeltser
Feb 18, 2009·Journal of Endourology·Kaveh VejdaniMarshall L Stoller
Dec 24, 2011·Journal of Endourology·Christopher J PagnaniDemetrius H Bagley
Jan 22, 2005·Journal of Endourology·S D MaislosA Raboy
Oct 22, 2008·Journal of Endourology·Gabriella MirabileJaime Landman
Jul 11, 2008·Journal of Endourology·Timothy HoldenManoj Monga
Feb 8, 2002·The Journal of Urology·Stephen W Leslie
Dec 20, 2005·Expert Review of Medical Devices·Nathaniel M Fried
Nov 21, 2012·Nature Reviews. Urology·Osama M Elashry, Ahmad M Tawfik
Jan 15, 2014·Current Opinion in Urology·Fernando J CabreraMichael E Lipkin

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