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VI. PRECAUTIONS
To assure that operation will be trouble-free, attention should be given to the
following points:
All tubing should be securely fastened to fittings. Hand-tighten to avoid damage to
fittings.
Gas supplies must be maintained at 50
5 PSI (345 ±34.5 kPa).
Flow restrictions (e.g. flow meter, valve, etc.) must not be placed in supply line.
Gas going to patient should not be supersaturated, as evidenced by excessive
rain-out in the tubing. Condensation droplets on the inner walls of the tubing is
normal.
Humidifier, when used, must be placed between PATIENT connection on MVP-10
and hose in patient circuit. DO NOT PLACE IN SUPPLY LINE.
Humidifier must be "flow-through" type having a low pressure drop; otherwise
protection provided by SAFETY RELIEF VALVE is ineffective. A pressure jet
nebulizer or an unmodified bubbler humidifier may not be used.
When setting INSP. TIME and EXP. TIME controls, for optimum repeatability,
always approach setting by turning knob in a clockwise direction.
Humidifier should have low compliance, and water maintained at a high level to
minimize compliance.
Expiration Valve must be positioned with diaphragm cap (white section with pilot
hose connection) up. Exhaust port, on bottom, should be unimpeded. (White
adapter section on exhaust port of valve should be removed.)
When the Ventilator must be used unattended, always use with an alarm system.
Pressure alarms should be T- connected to hose attached to GAUGE fitting at rear
of MVP-10.
System compliance should be compensated when used in a volume-limited,
time-cycled mode. (See Step 7 of Section A under SELECTION OF VENTILATION
PARAMETERS AND ADJUSTMENT OF CONTROLS.)
When setting controls, always start with PEEP/CPAP control fully clockwise, and
PIP control fully counterclockwise to avoid setting PEEP/CPAP above the maximum
pressure limitation.
Should any control knob come loose for any reason, do not attempt to refasten
them. The calibration of these controls depends on the position of the knob on the
shaft. If this occurs, the Ventilator must be returned to BMD for recalibration.
