Olympus UHI-4 - Page 18

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Important Information — Please Read Before Use
HIGH FLOW INSUFFLATION UNIT UHI-4
 If the insufflator emits a caution (caution light or alarm) for
cavity over-pressurization, quickly open the stopcock or
valve of the trocar.
Then, reduce the amount of outflow from the laser device,
argon-enhanced coagulator, or other gas supply device.
If use is continued while the alarm sounds, there is a risk
of gas embolism due to cavity over-pressurization.
• The automatic and relief functions may not work to relieve an
overflow of gas depending on the capabilities of the
connected suction device/equipment. In this event, reduce
the amount of overflow from the laser and gas supply
devices, or open the cock of the tracar and the valves. Also
keep in mind that this device alone does not perform the
function of suctioning the gas; be sure to connect this device
to the suction device/equipment through the suction tube.
• When relief mode is set to ON, cavity gas and/or body fluids
(e.g., blood) can flow backward into and potentially
contaminate the equipment. To prevent this, Olympus
strongly recommends the use of a disposable filter in the
CO
2
supply line between the UHI-4 and the patient. Olympus
recommends filter type PALL OR01H (0.2 m, hydrophobic)
or equivalent filters; contact Olympus for further details.
• If a filter is not used and fluid (e.g., blood) flows back into the
insufflation tube, make sure that it does not enter the UHI-4.
Should any fluids enter the UHI-4, immediately terminate its
use and contact Olympus.
• Olympus strongly recommends the use of a disposable filter
in the CO
2
supply line between the UHI-4 and the patient
even when the relief mode will not be used.
• To reduce the risk of an electric shock, do not remove the
cover of the insufflator.
• To prevent operator shock and instrument damage, keep
liquids away from all electrical equipment. If fluid enters the
high flow insufflation unit, stop operation immediately and
contact Olympus.
• Always use the UHI-4 as outlined in this instruction manual.
Improper use will not only impair functions and prevent
optimum performance, but may cause equipment damage
and/or complications. Before each use, always inspect the
equipment as outlined in this instruction manual.