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How to select the correct Endoscope
 

Rigid
Length
Diameter
Otoscope
10 cm
2.4 mm
Sinus/Arthroscope
11-18 cm
2.7-4.0 mm
Hysteroscope 30 cm 3.3 mm
Cystoscope
30 cm
4.0 mm
Nephroscope 30 cm 26 Fr
Laparoscope
33 cm
5-10 mm
Ureteroscope 34-43 cm 6-10.5 Fr
Bronchoscope
50 cm
5.5 mm
Flexible
Length
Diameter
Laryngoscope 26cm 3.6-5.0 mm
Hysteroscope 29cm 4.9 mm
Nephroscope 35-37cm 15.5-15.9 Fr
Cystoscope
37cm
15 Fr
Bronchoscope
50 cm
5.0 mm
Sigmoidoscope 60 cm 12.2 mm
Intubation 65 cm 3.5-5.0 mm
Ureteroscope 65-70 cm 7-9 Fr
Choledochoscope 70 cm 7.5 Fr
Gastroscope
103 cm
9.8 mm
Duodenoscope 124 cm 11-12.5 mm
Colonoscope
133-168 cm
11.3-12.9 mm