CER Endoscope Design and Structure 2

Question 1

Which component of a flexible endoscope houses the imaging sensor or fiber optic bundle at the distal tip?

Accepted Answer

Distal end

Answer

Control section

Answer

Insertion tube

Answer

Universal cord

Question 2

What is the primary purpose of the biopsy/instrument channel in a flexible endoscope?

Accepted Answer

To allow passage of accessories such as forceps and snares

Answer

To circulate water for cleaning during procedures

Answer

To house the angulation wires

Answer

To contain the light guide fibers

Question 3

The angulation or bending section of a flexible endoscope is located:

Accepted Answer

At the distal end just proximal to the tip

Answer

At the proximal end near the control body

Answer

In the middle of the insertion tube

Answer

Inside the universal cord

Question 4

Which material is commonly used to form the outer sheath of the insertion tube to provide flexibility and durability?

Accepted Answer

Polyurethane or rubber over a metal mesh braid

Answer

Stainless steel mesh only

Answer

Silicone tubing without reinforcement

Answer

Rigid polycarbonate

Question 5

In a video endoscope, what converts optical images into electronic signals at the distal tip?

Accepted Answer

Charge-coupled device (CCD) or CMOS sensor

Answer

Fiber optic image bundle

Answer

Objective lens array

Answer

Beam splitter prism

Question 6

The water/air channel in a flexible endoscope is used to:

Accepted Answer

Inflate the colon for colonoscopy and wash the lens

Answer

Circulate coolant around the light guide

Answer

Flush the instrument channel between samples

Answer

Provide suction at the distal tip

Question 7

Which endoscope component is most susceptible to damage from improper coiling or tight bends during transport and storage?

Accepted Answer

Insertion tube and bending section

Answer

Light guide connector

Answer

Control body housing

Answer

Suction valve port