Ventilator arrangement and method for controlling a ventilator arrangement
AssigneeMaquet Critical Care AB
InventorMagnus Hallbäck
Life of this patent
Estimating the term…
Abstract
A method for controlling a ventilator arrangement might be suitable for maintaining or achieving a desired end expiratory lung volume, EELV, of a subject when an external manoeuvre is performed on the subject ventilated by the ventilator arrangement. The ventilator arrangement applies a set positive end-expiratory pressure, PEEP, level for performing the ventilation.
Claims14
A method for controlling a ventilator arrangement for maintaining an end expiratory lung volume (“EELV”), of a subject when an external manoeuvre, is performed on the subject ventilated by the ventilator arrangement, wherein the ventilator arrangement applies a set positive end-expiratory pressure (“PEEP”) level for performing the ventilation, the method comprising:
- performing a ventilation pause in the ongoing ventilation of the subject prior to the external manoeuvre;
- determining a possible change in airway pressure (APaw) of the subject during pausing of the ventilation;
- and
- resuming the ventilation of the subject after at least parts of the external manoeuvre, wherein an updated set level for the PEEP is applied, wherein the updated set level basically corresponds to the sum of the set PEEP level prior to pausing the ventilation and the determined possible change in airway pressure (APaw) of the subject,
- wherein the external manoeuvre is changing the subject's position so that a lung volume of the subject is affected.
A ventilator arrangement for maintaining an end expiratory lung volume (“EELV”), of a subject when an external manoeuvre, is performed on the subject ventilated by the ventilator arrangement, wherein the ventilator arrangement applies a set positive end-expiratory pressure (“PEEP”) level for performing the ventilation, the method comprising:
- performing a ventilation pause in the ongoing ventilation of the subject prior to the external manoeuvre;
- determining a possible change in airway pressure (APaw) of the subject during pausing of the ventilation;
- and
- resuming the ventilation of the subject after at least parts of the external manoeuvre, wherein an updated set level for the PEEP is applied, wherein the updated set level basically corresponds to the sum of the set PEEP level prior to pausing the ventilation and the determined possible change in airway pressure (APaw) of the subject,
- wherein the external manoeuvre is changing the subject's position so that a lung volume of the subject is affected.
Dependencies are inferred from the claim text.