Safety device for reducing risk of fire in hyperbaric enclosure during oxygen treatment for patient, has control module controlling opening of inlet valve and power supply unit based on partial pressure of oxygen in enclosure

摘要

The device has a cartridge (3) carrying a separating filter membrane for separating nitrogen and oxygen molecules, where the cartridge is provided with an inlet (30), an outlet (31), and a vent (32) at which an outgoing gas is enriched with oxygen. A control module (6) receives data of pressure partial of oxygen and pressure of environment measured in a hyperbaric enclosure (1), and controls the opening of an inlet valve (4) and a power supply unit (5), where an exhaust valve (14) maintains a stable pressure in the enclosure with the partial pressure of oxygen between 160 and 230 millibars. Independent claims are also included for the following: (1) a method for reducing the risk of fire in a hyperbaric enclosure containing a biocompatible pressurized gas mixture (2) a computer program product for reducing the risk of fire in a hyperbaric enclosure containing a biocompatible pressurized gas mixture (3) a computer readable recording medium storing a program for reducing the risk of fire in a hyperbaric enclosure containing a biocompatible pressurized gas mixture.