A mechanical defect on a printed circuit board (PCB) as a result of PCB separating process. This defect might cause the ventilator to either fail at startup (no patient involvement) or during the use of the device enter ambient state, resulting in an interruption of ventilation.
Hamilton Medical AG
Class I - Dangerous
Ventilator coaxial breathing circuit may have a crack in blue tubing, which is used to deliver fresh gas to the patient. The crack will compromise inspiratory and expiratory flows, leading to partial or complete rebreathing of exhaled gases, which could lead to acute hypercapnia, respiratory acidosis, and if unrecognized organ dysfunction.
Class I - Dangerous
Ventilator may enter sensor fail mode, ventilation may not re-initiate, after patient is reconnected, which may cause hypoxia, if this sequence occurs: 1)User presses O2 enrichment, 2)User disconnects endotracheal tube for open suctioning, 3)Sensor error initiated, sensor fail mode occurs, 4)Patient is re-connected with sensor fail mode active, 5) Ventilation is not re-initiated by the ventilator.
Class I - Dangerous
Software error causes, safety ventilation, in which ventilation continues in the "safety ventilation" mode with audible/visible alarm - patient inputs are not monitored, if the following coincide 1) A mode change to an adaptive mode (ASV, APVcmv, APVsimv, INTELLiVENT-ASV, (S)CMV+, SIMV+), and 2) The controller and/or humidifier is connected to the ventilator and is operational.
Class I - Dangerous
Due to a malfunction related to the backlight on the ventilator screen. The screen goes black for approximately 2-3 seconds, but it brightens up again when the backlight switches on again.
Class I - Dangerous
Ventilator status indicator board can become loose, which could lead to water ingress (disinfectants) that may lead to technical fault alarms. Multiple technical faults in a short time may force ventilators into Safety Ventilation (blower runs constantly) or Ambient Sate (inspiratory channel/expiratory valves opened; patient breaths room air unassisted) with Panel connection lost message displayed
Class I - Dangerous
When starting a humidifier, intended for respiratory gas conditioning during invasive and noninvasive mechanical ventilation, with an empty chamber, and water is not filled into the chamber, the low water level alarm will be delayed and medical staff are unaware that there is no water in the chamber.
New software version for affected ventilators reduces the probability of the ventilator entering an ambient state, in which the inspiratory channel and expiratory valves are opened, letting the patient breathe room air unassisted. When the ventilator enters the ambient state, alternative ventilation must be provided immediately.
An out of specification component on the control board may cause the ventilator to open the inspiratory channel and the expiratory valve. The ventilator will shut down and an emergency buzzer providing an acoustic alarm and the blinking alarm LED on the device s front side.
An out of specification component on the control board may cause the ventilator to open the inspiratory channel and the expiratory valve. The ventilator will shut down and an emergency buzzer providing an acoustic alarm and the blinking alarm LED on the device s front side.
Class I - Dangerous
After two and a half years, the battery fuel gauge may indicate a higher battery charge than what is available.
Class I - Dangerous
After two and a half years, the battery fuel gauge may indicate a higher battery charge than what is available.