Olympus UHI-4 - Chapter 5 Operation

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Chapter 5 Operation
HIGH FLOW INSUFFLATION UNIT UHI-4
Chapter 5 Operation
This chapter describes the operating procedures for the endoscopic surgical
operation using this instrument.
This instrument is supposed to be used by operators who have received
sufficient training for endoscopic procedures. This manual, therefore, does not
detail the endoscopic procedures but only describes basic operational
procedures and precautions.
• Wear personal protective equipment to guard against
dangerous chemicals and potentially infectious material.
During operation, wear appropriate personal protective
equipment, such as eyewear, a face mask, moisture-resistant
clothing and chemical-resistant gloves that fit properly and
are long enough so that your skin is not exposed.
• If the high flow insufflation unit is set to “insufflation” for a
prolonged period of time without a CO
2
insufflation
connection, the decompressing devices may freeze. Under
these conditions, operation of the high flow insufflation unit,
including insufflation, may be impossible. Never use the unit
without a CO
2
insufflation connection.
• The insufflation tube must be sterilized prior to each use and
handled aseptically during the procedure.
• Perform the pressure settings only after carefully checking
the patient’s condition. Excessive pressure is dangerous and
may result in complications.
• Always select LOW flow mode when a veress needle is
connected. If HIGH or MED is selected, a large volume of
CO
2
will be released. If the veress needle is not correctly
inserted, complications such as subcutaneous swelling or
gas embolism may occur.
• To measure the cavity pressure correctly, always select LOW
flow mode when an instrument with a high gas-channel drag
due to a thin channel diameter (such as a veress needle) is
connected.
• Be sure to stop the insufflation before inserting the veress
needle. Otherwise, malfunction of this instrument may result.