Active valve for ventilators
AssigneeKoninklijke Philips Electronics N.V.
InventorsMabini Arcilla, Samir Ahmad, Eamonn Kelly
Life of this patent
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Abstract
A valve (100) for controlling pressure in a ventilation system is disclosed. The valve comprises an electromagnet (105, 106), a shaft (107) connected to the electromagnet, and a diaphragm (110) connected to the shaft, wherein the electromagnet applies force to the diaphragm based on an input. The ventilation system comprises a ventilator (200) connected to a patient circuit (204), the valve (100) controlling pressure in the ventilation system, and a controller (206) connected to the valve and configured to provide the input to the valve.
Claims19
A valve for providing pressure relief and pressure regulation in a ventilation system, the valve comprising:
- an electromagnet;
- a shaft connected to the electromagnet;
- and
- a diaphragm connected to the shaft, wherein the electromagnet applies a force to the diaphragm via the shaft based on an input signal to raise and lower the diaphragm with respect to a connection to a patient circuit, enabling air to be released from the connection to an ambient through an opening in the valve when the diaphragm is raised and to enable air to be provided to the connection from the ambient through the opening in the valve when the diaphragm lowered.
A computer readable medium having a computer readable program code embodied therein, the computer readable program code adapted to be executed to implement a method of controlling ventilation of a person, the method comprising:
- providing an inhalation pressure limit;
- determining when a pressure is greater than the inhalation pressure limit;
- and
- opening a valve when the pressure is greater than the inhalation pressure limit.
A method of controlling a valve for providing pressure relief and pressure regulation in a ventilation system, the method comprising:
- providing an inhalation pressure limit;
- determining when a pressure in a connection to a patient circuit is greater than the inhalation pressure limit;
- and
- opening the valve when the pressure is greater than the inhalation pressure limit.
Dependencies are inferred from the claim text.