Ventilator and method for detecting an obstruction during episodes of apnea by an additional pressure increment
First Claim
1. A ventilator comprising a respiratory gas source, a connecting line, a patient interface, and a control system for generating an incremental pressure change, and at least one sensor for flow measurement, wherein the sensor is connected to an evaluation unit for evaluating the flow pattern and comparing the pattern of a pressure increment with the pattern of the flow.
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Abstract
A ventilator and a method for detecting an obstruction during episodes of apnea by an additional pressure increment serve to detect episodes of obstructive apnea a respiratory gas source, a connecting line, and a patient interface are used to carry out the ventilation. The respiratory gas source has a control system for generating an incremental pressure change and at least one sensor for flow measurement. The sensor is connected to an evaluation unit that evaluates the flow pattern. A comparison of the flow pattern with the pattern of a pressure increment is carried out, and a ventilation state is automatically detected on the basis of the flow pattern.
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Citations
15 Claims
- 1. A ventilator comprising a respiratory gas source, a connecting line, a patient interface, and a control system for generating an incremental pressure change, and at least one sensor for flow measurement, wherein the sensor is connected to an evaluation unit for evaluating the flow pattern and comparing the pattern of a pressure increment with the pattern of the flow.
- 9. A method for controlling a ventilator, comprising supplying respiratory gas from a respiratory gas source to a patient interface through a connecting line, and generating an incremental pressure pattern and measuring a flow pattern, wherein a measurement that constitutes monitoring for the presence of an obstruction is carried out after the pressure pattern has been compared with the flow pattern.
Specification