12 Safety Information
Vivo 40 clinician’s manual
Doc. 003886 En-Us A-1e
2.4 Usage of Patient Circuit
• Only use the Vivo 40 with a mask, patient tube and leakage port recom-
mended by Breas Medical AB and your health care professional.
• The Vivo 40 requires an intentional leak port instead of an actively control-
led exhalation valve to remove exhaled gases from the patient circuit.
Therefore, specific masks and patient circuits using an intentional leakage
are required for normal operation. The pressurized air from the Vivo 40
causes a continuous flow of air to exhaust from the leak ports, flushing
exhaled gas from the circuit. The Vivo 40 should be turned on and the
intentional leak ports should be checked before application.
• Do not breathe in the connected patient circuit unless the Vivo 40 is turned
on and operating properly.
• Do not use patient hoses or tubes made of static or electrically conductive
material.
• Always use a new mask, tube and leakage port when the Vivo 40 is to be
used by a new patient.
• Patient connected parts and filter must be replaced regularly to ensure cor-
rect function of the Vivo 40. All replaced parts must be disposed of accord-
ing to local environmental regulations regarding the disposal of used
equipment and parts.
• Periodically check for moisture in the patient circuit. When present,
remove the moisture. Before attempting to dry the circuit, disconnect it
from the Vivo 40 to ensure no water will flow back into the Vivo 40. The
frequency at which these checks must be performed will depend on the
patient’s own condition and the device used. You should assess this on an
individual basis in accordance with the patient’s needs.
• If the patient needs assistance to take off the patient interface, the patient
shall not be left alone. This is to avoid the risk of re-breathing of CO
2
in
case of accidental ventilator failure. If the patient is using a full face mask
(covering mouth and nose), the mask must be equipped with a safety
entrainment valve.
