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Method and an apparatus for monitoring and controlling flows

  • US 20070163579A1
  • Filed: 12/08/2006
  • Published: 07/19/2007
  • Est. Priority Date: 01/13/2006
  • Status: Active Grant
First Claim
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1. An apparatus for monitoring and controlling flows in medical equipment including an anesthetic machine and a ventilator for influencing a patient'"'"'s respiratory system, said apparatus comprising a power supply, a microprocessor, an airway system, several microprocessor-controlled valve state monitoring units and valve actuating units and sensor data collecting and receiving units, said airway system comprising a bellows (4) and drive gas conduits at a ventilator end and breathing tubing at a patient end connected respectively to an outer chamber and a gasbag of the bellows (4);

  • said drive gas conduits connecting a pressure-reducing valve (1), an inhalation valve (2) and an exhalation valve (5) for gas-discharging;

    said breathing tubing at the patient end comprising an inhaling conduit and an exhaling conduit;

    said inhalation valve (2) being connected to the corresponding valve state monitoring units and valve actuating units;

    said apparatus further comprising a ventilator end flow sensor (3) provided in the drive gas conduits and a patient end flow sensor (11) in the breathing tubing at the patient end, wherein output signals of the ventilator end flow sensor (3) and the patient end flow sensor (11) are delivered to the respective sensor data collecting and receiving units.

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