Devices

This subsection describes the characteristics and principle of the double-balloon endoscope distributed by Fujinon.

SJ Scope (EN-450P5, EN-450T5)

Table 2.1 shows the specifications of the EN-450P5 and EN-450T5 scopes. Two types of dedicated scope are available. One is a standard scope with better insertability; it has a working length of 2000 mm, outer diameter of 8.5 mm, and forceps channel diameter of 2.2 mm. The other is a treatment scope with more therapeutic capabilities; it has a working length of 2000 mm, outer diameter of 9.4 mm, and forceps channel diameter of 2.8 mm

Fig. 2.1. Double-balloon endoscope
Fig. 2.2. System configuration

Table 2.1. Specifications of dedicated scopes

Variable EN-450P5 EN-450T5

Observation range (mm) 4400 41-00

Outer diameter (mm) 8.5 9.4

Forceps channel (mm) 2.2 2.8

Working length (mm) 2000 2000

(Fig. 2.3). Each has a built-in air route to inflate and deflate the balloon attached to the tip (Fig. 2.4).

Fig. 2.3. Comparison of EN-450P5 and EN-450T5 Fig. 2.4. Air route built into the scope
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