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Respiration device for the treatment of sleep apnea

A breathing device, sleep apnea technology, applied in respirator, breathing mask, medicine equipment and other directions, can solve problems such as oscillation

Inactive Publication Date: 2010-06-30
HOFFRICHTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The disadvantage is that the device requires the use of a valveless pump which creates an oscillating reference gas flow and which becomes a burden causing additional costs
Again, the disadvantage is that an additional duct is required to guide the reference flow into the nozzle

Method used

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  • Respiration device for the treatment of sleep apnea
  • Respiration device for the treatment of sleep apnea
  • Respiration device for the treatment of sleep apnea

Examples

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Embodiment Construction

[0029] In this example, a motor 2 with a DC power supply is used, and the pressure generated by the bellows 1 depends on the operating voltage of the motor 2 . The operating voltage source for the motor 2 consists of two elements U connected in series and controlled by a computer 3 CPAP and U WS constitute. The electric machine 2 thus receives a DC supply voltage which is superimposed on the smaller AC supply voltage. As a result, the artificial ambient pressure generated by the bellows 1 also includes a temporally constant, therapy-dependent direct pressure component, which is superimposed on the alternating pressure component. AC voltage source U WSThe amplitude of should be selected as small as possible so that the patient does not feel the existence of periodic pressure fluctuations. Of course, this method of generating pressure only works when a particularly high-powered electric motor 2 is used.

[0030] The internal resistance R formed by the airflow barrier in the...

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Abstract

The invention relates to a respiration device for the treatment of sleep apnea, with which a measurement of the airway resistance ROS of the person is possible using a measurement of the alternating pressure in the breathing mask, in particular, during breathing therapy. Neither an additional valveless pump for generation of a reference flow nor an additional supply tube for supply of the reference flow into the face mask are used. According to the invention, a respiration device for the therapy of sleep apnea is provided, comprising a breathing mask (6), fitted to a breathing tube (5), an electric fan (1), driven at varying speed for generation of a speed-dependent therapeutic pressure, a controller, in particular, a computer (3), for control of the fan speed and a pressure sensor (10), for determination of a pressure in the breathing mask (6), said pressure sensor (10), providing an electrical pressure measuring signal (uM), characterised in that the controller is embodied for a periodical change in the speed of the fan (1) with a constant, preferably inaudible frequency and for analysis of the alternating voltage components in the electrical pressure measuring signal (uM) due to the pressure variations generated at the outlet of the fan (1) caused by the periodic changes in speed thereof and for controlling the therapy, in particular for setting the therapeutic pressure.

Description

technical field [0001] The present invention relates to a breathing apparatus for the treatment of sleep apnea, in particular to an automatic CPAP (CPAP with self-correcting function), suitable for measuring airflow resistance or changes in such airflow resistance in a person's airway with sufficient accuracy . Background technique [0002] A similar breathing device for implementing CPAP therapy and its control method is disclosed in EP0705615 A1. [0003] In CPAP (Continuous Positive Airway Pressure) therapy, the patient breathes in an artificial environment, generated by CPAP, whose pressure is continuously raised with the natural environment. When the musculature relaxes while the patient is asleep, the elevated pressure hinders the collapse of the patient's weakened upper airway. The airway and especially the airway through the pharynx keep the so-called airway open, so that the patient can breathe naturally and spontaneously without hindrance. Without CPAP, a patien...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M16/00A61F5/56A61M16/06
CPCA61M16/0057A61M2016/0006A61M2016/0021A61M2016/0036A61M2230/65A61M16/06A61M2230/40A61F5/56A61M2016/0069A61M16/0006A61M16/0069A61M2016/0027
Inventor 赫尔穆特·霍弗里希特
Owner HOFFRICHTER
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