Large diameter rigid ureteroscopes occupy a specific place in urology: when optical clarity, irrigation flow and instrument passage matter more than minimal calibre, a 65FR class instrument gives the surgeon room to work.
Stock photo: rigid ureteroscope from our inventory (model 8705.402, 10 degree field of view, 425 mm).
What the larger calibre changes
Optical bundles scale with diameter, so larger instruments deliver brighter images and wider fields. Irrigation channels also scale, which improves flow and keeps the field clear during stone retrieval. Working channels accept larger instruments and accessories, reducing the need to exchange devices mid-procedure.
Clinical role in diagnostics
- Upper tract inspection: clear visualisation of urothelium and stone burden.
- Tissue sampling: larger working channels support biopsy instruments.
- Stone management: irrigation and access for retrieval or fragmentation devices.
- Stent placement: controlled guidewire and stent delivery under direct vision.
Cleaning and reprocessing
Rigid ureteroscopes require meticulous channel cleaning: flush all lumens, brush the working channel, and verify that no debris remains around the distal tip and seals. Follow the manufacturer's validated reprocessing instructions and record every cycle.
Distal tip and optical window detail.
Inspection points before purchase
Check the optical window for chips, inspect the sheath for dents, confirm the light guide bundle transmits evenly, and verify that the working channel is clear and free of burrs. Ask for an image through the scope, not only an external photo.
FAQ
Is a 65FR instrument suitable for all patients?
Calibre selection is a clinical decision based on anatomy and procedure. Larger instruments are used where access and visualisation requirements support them.
Can large rigid scopes be repaired?
Yes. Optical bundle replacement, sheath repair and seal replacement are established services, which supports a long service life.
Looking for a rigid ureteroscope? Contact us for available models, specifications and inspection reports.
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