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- W2037592736 abstract "You have accessJournal of UrologyTechnology & Instruments: Robotics: Benign & Malignant Disease (I)1 Apr 2013861 COMPUTER CONTROLLED ADAPTIVE OPTICAL LASER BEAM STEERING THROUGH ENDOSCOPE FOR LASER SURGERY IN KIDNEY Anne Dudley, Stephen Jackman, Kevin Chen, and Tatum Tarin Anne DudleyAnne Dudley Pittsburgh, PA More articles by this author , Stephen JackmanStephen Jackman Pittsburgh, PA More articles by this author , Kevin ChenKevin Chen Pittsburgh, PA More articles by this author , and Tatum TarinTatum Tarin Pittsburgh, PA More articles by this author View All Author Informationhttps://doi.org/10.1016/j.juro.2013.02.429AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookTwitterLinked InEmail INTRODUCTION AND OBJECTIVES Endoscopic technology has changed the surgical treatment of upper urinary tract disease, allowing minimally invasive treatment when appropriate. Despite advances in endoscopic engineering, physical constraints limit ureteroscopic access and use. In particular, surgical laser fibers obstruct the working channel and limit deflection leading to limited visualization and manipulation of the ureteroscope. We have developed an adaptive optical element which allows the surgical laser source to be sent directly via the optical channel, leaving the working channel open for irrigation, or other use. This element provides the ability to modulate the laser beam shape and size, and to steer the bean within the entire field-of-view of the ureteroscope without movement of the endoscope itself. Our study sought to test the practical application of the adaptive optical element in a laboratory setting. METHODS An 8 fr fiberoptic ureteroscope was used with the adaptive optical element and a green light laser source was able to be manipulated into various sizes, shapes, and patterns using computer guidance. Laser output was examined as it exited the ureteroscope. The laser was controlled using endoscopic screen control via computer, and ablation of a target was tested. RESULTS Beam variables such as size, shape and pattern were able to be modified, along with the beam direction via computer input. Figure 1a shows a grid pattern targeted to porcine renal parenchyma, demonstrating the ability to manipulate the laser into preselected beam shapes and patterns. Using the endoscopic field-of-view, the laser beam was guided easily via computer. Computer guidance of a representative target visualized on endoscopic field-of-view and resulting target ablation by the laser is shown in Figure 1b and 1c. CONCLUSIONS Optical adaptive element use to guide a surgical laser source provides an alternative to surgical laser fibers which obstruct the working element and irrigating flow. The ability to guide laser energy directly to a target on screen will minimize human error and potentially allow for more effective, accurate and safe treatments for many conditions in endourology and other minimally invasive approaches. Further studies are planned to characterize safety profile, accuracy and additional applications in an animal model. © 2013 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 189Issue 4SApril 2013Page: e355 Advertisement Copyright & Permissions© 2013 by American Urological Association Education and Research, Inc.MetricsAuthor Information Anne Dudley Pittsburgh, PA More articles by this author Stephen Jackman Pittsburgh, PA More articles by this author Kevin Chen Pittsburgh, PA More articles by this author Tatum Tarin Pittsburgh, PA More articles by this author Expand All Advertisement Advertisement PDF downloadLoading ..." @default.
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- W2037592736 title "861 COMPUTER CONTROLLED ADAPTIVE OPTICAL LASER BEAM STEERING THROUGH ENDOSCOPE FOR LASER SURGERY IN KIDNEY" @default.
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