Rigid endoscopes are made of metal tubes which contain the lenses, and the light channel(s) and are available in a large range of external diameters, from 1 to 12 mm. Commonly, rigid endoscopes have a series of high-resolution optical glass rod lenses.

Which endoscope is flexible or rigid?

Flexible endoscopy (FE) is recommended as the first-line therapeutic option because it can be performed under sedation, is cost-effective, and is well tolerated. Rigid endoscopy (RE) under general anesthesia is less used but may be advantageous in some circumstances.

Is a gastroscopy rigid?

The equipment used for upper endoscopy consists of a rigid brass or steel (and sometimes matted steel) tubes which are illuminated with a light. Also comprises of a suction tube, forceps and micro-scissors (long slender instruments to take biopsy etc.)