Olympus BF-1TH190, Instructions Manual, Page: 60 / 104

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4.2 Insertion
BF-190 Series OPERATION MANUAL
Ch.4

Insertion of the endoscope
WARNING
• Make sure that the UP indication on the insertion tube rotation ring is aligned with
the UP indication on the control section.
• The shape and size of the nasal cavity and its suitability for transnasal insertion
may vary from patient to patient. No endoscope, including this one, can always be
inserted transnasally into all patients. Before proceeding, always be sure to confirm
that transnasal insertion is possible with the patient by considering both the size of
the patient’s nasal cavity as well as the size of the endoscope’s insertion section.
Otherwise, patient injury can result or the endoscope could become lodged and
difficult to withdraw.
• Transnasal insertion of the endoscope should be performed carefully. If resistance
to insertion is felt, or the patient reports pain, stop the insertion immediately.
Otherwise, patient injury can result or the endoscope could become lodged and
difficult to withdraw.
CAUTION
• When inserting the endoscope through the mouth, place the mouthpiece (MA-651)
in the patient’s mouth as necessary before inserting the endoscope to prevent the
patient from accidentally biting the insertion section. Biting the insertion section
may result in a break in the cable or malfunction of the light guide.
• When the patient has dental prostheses, remove them from the patient’s mouth
before placing a mouthpiece. Otherwise, the dental prostheses or mouthpiece may
loosen during the examination.
• Confirm the patient’s dental condition before using the mouthpiece. If any
irregularity, such as teeth under treatment or lack of teeth is observed, the teeth
may be broken.
• Do not apply olive oil or products containing petroleum-based lubricants (e.g.,
Vaseline
®
) to the endoscope. These products may cause stretching and
deterioration of the bending section’s covering.