JPH027570Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to an airway vibration stimulation type asthma treatment device.
In particular, it relates to a device for preventing arterial blood PO ₂ drop from occurring.

Conventional technology Airway vibration stimulation type asthma treatment device uses air vibrations from a speaker to stimulate slow-adapting receptors to suppress asthma attacks.This air vibration is transmitted from the speaker to the patient's mouth through a duct. It is transmitted. When a patient undergoes treatment using such a treatment device, a portion of exhaled air accumulates in the duct, reducing the oxygen concentration within the duct. Moreover, since the air in the duct is also sucked in when inhaling, arterial blood PO ₂
May cause a drop.

Problems that the invention aims to solve As a means of preventing such a drop in arterial blood PO ₂ , an electrically driven pump is used to constantly send fresh air into the duct to prevent air from accumulating in the duct. ing. However, with this pump type, there is a problem in that it is not possible to reduce the weight and size of the treatment device, which becomes ineffective if the pump breaks down. Also, an attempt was made to simply interrupt the end of the duct with a circuit breaker, but this would distort the vibration waveform due to the circuit breaker and would not provide the desired treatment.

Means to Solve the Problem On the other hand, this asthma treatment device generates air vibrations such as triangular waves, captures these air vibrations with a speaker, and transmits them through the duct to the patient's mouth to stimulate and expand the airway. This is to treat asthma.
After various experiments and trial production, the inventor attached a thin film made of silicone rubber or fluorine rubber to the end of the duct, which allowed the triangular waves, which are air vibrations emitted from the speaker, to be transmitted to the patient's mouth without being deformed. Due to the presence of the thin film, the air inside the duct is not sucked in at the same time, and the breathing circuit is cut off by the thin film, so there is no risk of a drop in arterial blood PO ₂ , and exhaled air is led out through the ventilation opening and collected due to the presence of the thin film. There was no problem.

In this way, in this invention, a thin film such as silicone rubber or fluorine rubber is attached to the tip of the duct to block exhaled air into the duct and prevent a drop in arterial blood PO ₂ by rebreathing a portion of the exhaled air. This makes it possible to reduce weight and size. Furthermore, since the moisture in exhaled air no longer enters the duct, the growth of mold in the duct is prevented, which is of great sanitary significance.

Embodiment The asthma treatment device according to the present invention will be explained with reference to the schematic diagram of the embodiment shown in FIG.

In the figure, a triangular wave generated by a triangular wave generating circuit 1 is transmitted to a duct 3 through a speaker 2 as air vibration. Note that the triangular wave generating circuit 1, the speaker 2, and the duct 3 are assumed to be an air vibration generating section P. A thin film 4 made of silicone rubber, fluorine rubber, etc. is attached to the tip of the duct 3. Also, 5 is a ventilation hole, 6 is a nebulizer,
7 is a mouthpiece, and 8 is a compressor. During exhalation, an air vibration force is applied to the aerosol generated by the aerosol generating part Q through the thin film 4 from the air vibration generating part P, and the aerosol is sucked into the patient's oral cavity and vibrates to the patient's airway for treatment. On the other hand, during exhalation, exhaled air is discharged from the ventilation port 5, but is blocked by the thin film 4 and does not enter the duct. Figure 2 shows a waveform comparison of triangular air vibrations with and without a thin film of silicone rubber, where A is the waveform when silicone rubber is not attached, B is the waveform when silicone rubber is attached; It can be seen that the waveform hardly changes even if Also, silicone rubber is a good material because it does not change even with various chemical solutions.

Effects of the Invention In this invention, by attaching a thin film of silicone rubber or fluorine rubber to the end of the duct, the triangular wave air vibrations can be transmitted to the patient's mouth without being deformed, stimulating the airway. Exhalation and intake air are blocked by this thin film and do not enter the duct. Therefore, there is no need to clean and disinfect the ducts.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of an embodiment of the device according to the present invention, and FIG. 2 is a waveform diagram of the duct tip with and without a silicone rubber film. In the figure, 1 is a triangular wave generation circuit, 2 is a speaker, 3 is a duct, 4 is a silicone rubber membrane, 5 is a ventilation hole, 6 is a nebulizer, 7 is a mouthpiece, and 8 is a compressor.

Claims (1)

[Scope of utility model registration request] This is an airway vibration stimulation type asthma treatment device comprising a device in which an air vibration generation section P is constituted by a triangular wave generation circuit 1, a speaker 2, and a duct 3, and a device in which an aerosol generation section Q is constituted by a compressor 8 and a nebulizer 6. , a highly elastic thin film 4 made of rubber or the like is used at the joint between the air vibration generation part P and the aerosol generation part Q to prevent air, aerosol, etc. from entering the air vibration generation part P. Airway vibration stimulation type asthma treatment device.