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1. Common types of failures of URF-V ureteroscopes：
- Severe air leakage under the sheath of the insertion tube
- Modification of the front section of the insertion tube
- Angle failure
- The C-Cover leaks air
- Air leakage from the operating handle
- The image is dark
2. Failure analysis and cause of URF-V ureteroscope：
- Bent snake bones, corroded or broken
- Aging, wear, and deformation of the insertion tube
- Steel wire, spiral pipe, corrosion and wear
- Aging and wear of the outer skin
- Aging of the light guide beam
- Aging and twisting of clamp pipe
3. Troubleshooting of URF-V ureteroscope：
Replacement:
- Curved snake bone
- tip assembly
- insertion tube
- beam guide
- clamp tube
- steel wire
- spiral tube
- outer skin
4. The endoscope should be stored in a standardized manner after use
- Cleaning: After use, the endoscope should be thoroughly cleaned, disinfected, dried, and maintained (leak detection, wiping with anhydrous alcohol on the tip, wiping with anhydrous alcohol on the mirror body, oiling the buttons, etc.)
- Storage: Store in a dedicated endoscope cabinet (hanging, secure), and turn on UV disinfection regularly
