Ureteroscopy pp 291-302 | Cite as

Flexible Ureteroscopy: Wireless and Sheathless

  • Jacob H. Cohen
  • Seth D. Cohen
  • Michael GrassoIIIEmail author
Part of the Current Clinical Urology book series (CCU)


No-touch ureteroscopy, also termed “wireless and sheathless” ureteroscopy, is an advanced ureteroscopic technique that minimizes incidental trauma from a wire or dilators. Direct access to the upper urinary tract with a flexible ureteroscope allows pristine inspection of the upper ureter and renal calyceal system. Improvements in the mechanics of flexible ureteroscopes, including smaller tip diameter, exaggerated tip deflection, and a larger deflecting radius allowed for the intubation of the ureteral orifice and the complete upper urinary tract inspection to be performed solely with a flexible endoscope, commonly without the assistance of a potentially traumatic guide wire. With the safety and efficacy of this technique in diagnostic applications, the indications for no-touch ureteroscopy have expanded to include a variety of therapeutic indications including tumor therapy and endoscopic lithotripsy. Herein, a review of the current techniques and results associated with wireless and sheathless flexible ureteroscopy will be presented.


Laser Fiber Guide Wire Ureteral Orifice Access Sheath Flexible Ureteroscope 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Supplementary material

272467_1_En_25_MOESM1_ESM.mp4 (32.5 mb)
Distal ureteral tumor (MP4 33, 290 KB)


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Jacob H. Cohen
    • 1
  • Seth D. Cohen
    • 1
  • Michael GrassoIII
    • 1
    • 2
    Email author
  1. 1.Department of UrologyLenox Hill HospitalNew YorkUSA
  2. 2.Department of UrologyMedical College of New YorkValhallaUSA

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