×

Apparatus for supplying respiratory gas and a method for controlling the apparatus

  • US 7,516,740 B2
  • Filed: 08/15/2002
  • Issued: 04/14/2009
  • Est. Priority Date: 08/20/2001
  • Status: Active Grant
First Claim
Patent Images

1. Apparatus for supplying a respiratory gas to a person comprising:

  • a conveyor device to convey the respiratory gas;

    a breathing mask, worn by the person in use;

    a hose conduit, arranged between the conveyor and the breathing mask, to feed the respiratory gas conveyed by the conveyor device to the person via the breathing mask;

    a humidification device to humidify the respiratory gas;

    a first sensor device, arranged on the breathing mask, to generate a signal indicative of the respiratory gas humidity;

    a second sensor device arranged in the region of the humidification device at an outlet of the humidification device and configured to generate a signal indicative of the respiratory gas humidity;

    a temperature detection device to detect a respiratory gas temperature change resulting from respiratory gas leakage near the breathing mask; and

    a control device to control the humidification device, wherein the control device compares the signal from the first sensor device and the signal from the second sensor device to determine a change in the humidity of respiratory gas between the humidification device and the breathing mask, and wherein the control device is further adjusts the humidity and/or temperature of the respiratory gas when the detected respiratory gas temperature change resulting from respiratory gas leakage is below a certain threshold.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×