| Patent application number | Description | Published |
|---|
| 20090000621 | PATIENT BREATHING SYSTEM - A patient breathing system includes a ventilator that provides a driving gas flow to generate patient inspiration. The ventilator further includes a gas inlet for driving gas, the patient breathing system being connectable to a circle which includes an inspiratory hose and an expiratory hose connected to patient, through which circle expired gases can be circulated back to the patient. The circle further includes a fresh gas inlet, an arrangement for enabling the gas flow in a desired direction, a unit for removal of the exhaled carbon dioxide, and a ventilator port for the ventilator connection. The patient breathing system further includes an arrangement by which driving gas of the ventilator has been separated from the patient gases flowing in the circle. | 01-01-2009 |
| 20100078018 | METHOD AND ARRANGEMENT FOR DETECTING A LEAK IN ANESTHESIA SYSTEM - A method and arrangement for detecting a leak in an anesthesia system. The method includes controlling respiratory movements by means of ventilator gas flows and measuring the ventilator gas flow added for an inspiration and removed for an expiration. The method also includes supplying a fresh gas flow for a respiration and measuring the fresh gas flow added for the respiration. The method further includes receiving information indicative of the measured gas flows, determining based on said received information both the gas volume added and the gas volume removed and comparing these determined gas volumes to each other. The method also includes determining based on comparing the anesthesia system leakage. | 04-01-2010 |
| 20110094509 | METHOD AND ARRANGEMENT FOR CONTROLLING NARCOTIC EFFECT VALUE OF BREATHING GAS - A method for controlling a narcotic effect value of a mixture of at least two narcotic agents of a breathing gas is disclosed herein. The method includes setting a target value for a desired narcotic effect of narcotic agents and measuring a breathing gas concentration of each narcotic agent of the breathing gas. The method also includes converting measured breathing gas concentration of each narcotic agent to a narcotic effect value of the breathing gas and calculating a total narcotic effect value of the mixture of the at least two narcotic agents. The method also includes comparing the total narcotic effect value with the target value and determining whether or not to change the breathing gas concentration to meet the target value. | 04-28-2011 |
