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Ventilator device for treating obstructive sleep apnea and method for its control

A sleep apnea, artificial technology, applied in the field of artificial ventilators, can solve the problem that the breathing starter cannot accurately identify the end of an exhalation, etc.

Inactive Publication Date: 2008-01-16
HOFFRICHTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore the breath trigger does not recognize the end of an exhalation exactly and the patient has the perception that the pressure switch is often made at the wrong moment

Method used

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  • Ventilator device for treating obstructive sleep apnea and method for its control
  • Ventilator device for treating obstructive sleep apnea and method for its control

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] The block diagram shown in FIG. 1 shows a possible realization of a respirator 1 according to the invention.

[0028] To generate the pressure, the respirator has a pressure generator 3 , here in the form of a blower, and an oscillating pump 4 , which generates oscillating pressure changes with a small amplitude. The two pressures are added at an addition position 5 to obtain a sum pressure, and pass through a flow resistance R i Lead into breathing mask 7 with a breathing hose 6. In this way the flow resistance R i Form a flow with the ventilator D related pressure drop. The flow processor 8 is controlled by the ventilator airflow D The signal determines the respiratory airflow  V , which leads to the lungs of patient 2. This is done by calculating the leakage flow  L change process and remove it from the ventilator airflow D The change process is subtracted to achieve. The leakage flow is through the leakage valve R L (usually it's just an opening to th...

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Abstract

The present invention relates to a manpower respirator for treatment of obstructive sleep apnea, which comprises a pressure generator (3) for generating an artificial atmosphere with a therapy pressure (pact), a pressure regulating device (10) for controlling the pressure generator, and a respiration soft tube (6) as well as a respiratory mask (7) for supplying the artificial atmosphere to a patient (2). The manpower respirator is characterized in that it has a controller (13), which is used for continuously determining a loss pressure (Delta p) resulting over a respiratory tract resistance (RAW) of a respiratory tract of the patient, and for proportional adjustment of the therapy pressure progress in the process of the determined loss pressure. The manpower respirator reduces the burden of the patient breathing muscle distinctly and the result of delay treatment, and makes the treatment process be more comfortable.

Description

technical field [0001] The invention relates to an artificial respirator for treating patients suffering from obstructive sleep apnea and a control method thereof, having the features stated in the preamble of claim 1 . Background technique [0002] Artificial respirators used to treat obstructive sleep apnea produce artificial air at a higher pressure than natural air and deliver it through a breathing tube and a mask to the patient being treated during sleep. [0003] Muscle contraction weakens during sleep, the soft tissues of the airway in the throat may atrophy, and the sleeper faces the risk of suffocation. The resulting cessation of breathing is called obstructive sleep apnea. The cause of soft airway collapse is the pressure drop therein caused by the high velocity of the respiratory airflow. As a result the airway in the area of ​​the base of the tongue and the soft palate can no longer withstand the pressure difference from the normal ambient atmospheric pressure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M16/00
CPCA61M16/00A61M16/0006A61M16/0063A61M16/024
Inventor 赫尔穆特·霍弗里希特
Owner HOFFRICHTER
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