Mindray A9 Operating Instructions

Operator’s Manual of Anesthesia System 6 - 19
Operations Other Features
6.7.3 Cardiac Bypass Mode
The Bypass mode turns off pressure, volume and apnea alarms when they are not appropriate
(e.g., during heart/lung bypass).
Set whether to enter the Bypass mode in the automatic ventilation mode:
1. Enter Standby mode.
2. Select the icon > [System] soft key > enter the system password and confirm the
password > [Setup] tab > [Quick Key] tab.
3. Set the [Bypass in Auto mode] to (off ) or (on).
• When the [Bypass in Auto mode] is set to (off), the Bypass mode is only available in
the Manual ventilation mode (not available in the Auto ventilation mode). Start the
manual ventilation, if you select the [Bypass] soft key in the manual mode and select [Yes]
in the pop-up dialog box, the system will enter the Bypass mode.
• When the [Bypass in Auto mode] is set to (on), the Bypass mode is available in both
the Manual and Auto ventilation modes. Start the ventilation, if you select the [Bypass]
soft key on the Main Screen and select [Ye s ] in the pop-up dialog box, the system will
enter the Bypass mode.
NOTE: When the Bypass mode is enabled, the [Alarms] button is disabled and
automatically set to [Off].
When the system exits the Byapss mode, the [Alarms] button returns to its setting before the CPB
mode is enabled.
6.7.4 High-flow Nasal Cannula Oxygen (HFNC)
High-flow Nasal Cannula Oxygen (HFNC) refers to a method to increase the O
2
concentration in the
airway under atmospheric pressure through simple tubes. HFNC refers a medical measure that
increases the alveolar O
2
concentration by increasing the O
2
concentration in the inhaled gas to
promote O
2
diffusion, thereby increasing the partial pressure and saturation of blood oxygen in
arteries so as to ease or rectify hypoxia. HFNC is a hypoxia prevention or treatment means and the O
2
concentration it provides is higher than that in the air.
CO
2
monitoring does not operate when HFNC is in use. Monitoring should be done by measuring
the patient PaCO
2
values.
The working principle of HFNC is the same as the Auxiliary O
2
/Air Flowmeter, however HFNC has a
wider flow range (0 to 60L/min) than the Auxiliary O
2
/Air Flowmeter (the flow range: 0 to 15L/min).
The total flow of oxygen is up to 60 L/min. The total flow of air is up to 60 L/min. The total flow is up to
60 L/min.
WARNING: High Flow Nasal Cannula (HFNC) is indicated for delivery of nasal high
flow oxygen to spontaneously breathing adult patients. It can be used
for pre-oxygenation and short-term supplemental oxygenation (up to
10 minutes) during intubation in operating rooms. It is not intended for
apneic ventilation. HFNC is indicated for use in adults only.
WARNING: HFNC can be applied to open or semi-open ventilations such as nasal
cannula or mask ventilation, but it can not be applied to closed or semi-
closed ventilations like tracheal intubation or laryngeal mask
ventilation.

Mindray A9 Specifications

General

Brand	Mindray
Model	A9
Category	Medical Equipment
Language	English