Table 1 Specifications of conventional and motorized endoscopes. CCD, charge-coupled device; CMOS, complementary metal oxide semiconductors; HD, high definition; FHD, full high definition.
Conventional Endoscope | Motorized Endoscope | ||
|---|---|---|---|
Depth of field | Normal: 7–100 mm, Near focus: 3–7 mm | 5–100 mm | |
Distal end outer diameter | 10.2 mm | 10.0 mm | |
Control interface weight | ≥ 600 g | 350 g | |
Angulation control torque | Up | ≤ 1.28 Nm | ≤ 0.12 Nm |
Down | ≤ 0.92 Nm | ≤ 0.14 Nm | |
Left | ≤ 0.51 Nm | ≤ 0.12 Nm | |
Right | ≤ 0.47 Nm | ≤ 0.11 Nm | |
Function button operating force | Air | ≤ 1 N | ≤ 1 N |
Water | ≥ 12.30 N | ≥ 6.2 N | |
Suction | ≥ 10.98 N | ≤ 1 N | |
Other | ≥ 8.20 N | ≤ 1 N | |
Knob/wheel radius | Up, Down | 34 mm | 22 mm |
Left, Right | 26.5 mm | 21 mm | |
Motor-actuated control | X | O | |
Flexible software installation | X | O | |
Sensor type | Monochrome CCD | Color CMOS | |
Image resolution | HD (1280 × 720 pixels) | FHD (1920 × 1080 pixels) | |
Field of view | 140° | ||
Insertion tube diameter | 9.9 mm | ||
Working length | 1,030 mm | ||
Total length | 1,350 mm | ||
Instrument channel diameter | 2.8 mm | ||
Angulation | Up | 210° | |
Down | 90° | ||
Left | 100° | ||
Right | 100° | ||
