What are the advantages of a rigid endoscope?

08 Jul.,2024

 

Rigid endoscopy | Voice Doctor

On top is the KayPentax 70 degree endoscope. It has a small diameter and is relatively easy to place in the back of the mouth. Below is a Storz 90 degree rigid endoscope. It transmits more light for a brighter image and has a quick focus ring in front of the eyepiece.

Although there is an eyepiece, I'll admit to never having looked through it directly. I have always attached a camera, a C-mount style camera. A recording which can be viewed mutiple times is too valuable to be trusted to the memory of a naked eye view.

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Because of the C-mount lens, higher resolution chip cameras are available for attached cameras when compared to chip-on-tip cameras on flexible endoscopes.

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Pro and cons of different designs of rigid endoscopes

Experience with more than 200 neuroendoscopic procedures taught us the advantages and disadvantages of the different endoscope designs. Using an endoscope with a sheath with separate channels for the endoscope, the instruments as well as for rinsing and suction we found advantages in rinsing properties, handling, and preciseness of instrument steering. On the other hand an endoscope with a sheath with a singular channel for the endoscope itself, the instruments, rinsing, and suction the advantages were better in visualization of the instruments, more available instruments, and easier extraction of larger specimen. The knowledge of these advantages makes it possible to select the adequate endoscope regarding its design, especially in more complicated cases.

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