Parameter Category | Specific Parameter | Standard / Range |
Physical Specifications of the Scope | Outer diameter of the scope | 4mm |
Working length | ≥ 190mm; standard specification is mostly 302mm | |
Maximum outer diameter of insertion part | ≤ 9mm (including sheath) | |
Optical and Imaging Performance | Field of view (FOV) | ≥ 60°, mostly 65°; ultra-wide-angle type can reach ≥70° |
Direction of view (DOV) | 12° / 30°; some include 25°, urethroscope version includes 6° | |
Resolution | ≥ 9.36 LP/mm; HD grade can reach 12 - 13 LP/mm | |
Spectral color rendering index (Ra) | ≥ 85 | |
Effective depth of field range | 3mm - 100mm | |
Effective luminance ratio (DM) | ≥ 1000 cd/m²/lm | |
Relative distortion | ≤ -18% | |
Sterilization and Compatibility Requirements | Sterilization tolerance | Autoclave (134°C) / Low-temperature plasma sterilization / EO |
Light guide compatibility | Compatible with mainstream light guides (Olympus, STORZ, Wolf) |
