JPH0244721Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a breathing monitor, in particular, it monitors the breathing condition of a person receiving oxygen inhalation unattended, and if the breathing condition becomes abnormal, it will alert the surroundings. It concerns a respiratory monitor that can issue a warning.

[Prior art and its problems]

Generally, it is necessary to monitor the breathing status of a sick person who has difficulty breathing or an elderly person with weakened physical strength who is receiving oxygen inhalation. had not been previously devised.

This device solves the problems of conventional methods. It monitors the breathing status of people receiving oxygen quantitatively and unattended, and alerts those around them if their breathing status becomes abnormal. The purpose of the present invention is to provide a respiratory monitor that can emit

[Means for solving problems]

In order to solve the above problems, this invention consists of an intake source that supplies a certain amount of oxygen, an oxygen inhalation mask connected to this intake source, and an oxygen inhalation mask provided on the inner surface of this oxygen inhalation mask. A humidity sensor that detects humidity and emits a signal corresponding to the humidity; and a humidity sensor that receives a signal from this humidity sensor, averages the received signals at predetermined time intervals, and makes a first signal corresponding to the humidity sensor; A sensor circuit that compares the signal and a second signal corresponding to normal breathing and outputs when the first signal deviates from the second signal by a predetermined value or more, and the output of this sensor circuit. and an external output device for receiving and displaying the information.

[Effect]

The breathing monitor of this invention configured as described above quantitatively and unattended monitors the breathing condition of a person receiving oxygen inhalation, and if the breathing condition becomes abnormal, it will alert the surrounding people. This means that a warning can be issued.

〔Example〕

Embodiments of this invention shown in the drawings will be described below.

Figure 1 shows a respiratory monitor based on this invention, which includes an intake source 1 that supplies a fixed amount of dry air (humidity around 10%) every second, an oxygen inhalation mask 2 connected to this intake source 1, and an oxygen inhalation mask 2 connected to this intake source 1. a humidity sensor 3 provided on the oxygen inhalation mask 2 to detect humidity;
A sensor circuit 4 connected to this humidity sensor 3,
It is comprised of an external output device 5 connected to this sensor circuit 4 to issue a warning to the surroundings.

As shown in FIGS. 2a and 2b, the oxygen inhalation mask 2 has a substantially bowl-like shape as a whole, and the dry air supplied from the inhalation source 1 is sent through a pipe or the like, and the oxygen inhalation mask 2 is provided at the bottom. The dry air is discharged from the air intake port 6, and the person receiving oxygen inhalation inhales by inhaling the dry air, and exhales through the periphery of the oxygen inhalation mask 2 and the area around the mouth. It is designed to be discharged from the gap between the holes.

Furthermore, a humidity sensor 3 for detecting humidity is attached to the inner surface of the oxygen inhalation mask 2. It's getting old,
A device having characteristics as shown in FIG. 4 is used.

Furthermore, a sensor circuit 4 is connected to the humidity sensor 3, and as shown in FIG. The system receives the signal from the rectifier circuit, converts the received signal into a voltage output, and determines the state of breathing based on the state of this voltage output.The output voltage from the rectifier circuit is shown in Figure 5. As shown in the figure, when breathing is performed normally, the waveform repeats within a fairly constant range, but when breathing becomes abnormal and becomes weaker or stronger, the waveform changes accordingly. The output voltage also fluctuates by going low or high, and the waveform of the output voltage from this rectifier circuit is averaged over a certain period of time (30 seconds in this example) by an averaging circuit, as shown in Figure 6. ), and a second signal that is a voltage output set to a predetermined voltage width corresponding to when breathing is normal in conjunction with this first signal. A comparator compares the output voltage from the average circuit with the reference voltage range, and if the output voltage from the average circuit deviates from the range of the reference voltage, it is determined that there is an abnormality in the breathing condition and a signal is output. is starting to work.

Upon receiving the signal from the sensor circuit 4, the external output device 5 issues a warning with a light such as an LED or a sound such as a voltage buzzer, indicating that the breathing condition of the person receiving oxygen has become abnormal. I'm starting to let people around me know.

Next, the operation of the above will be explained.

As mentioned above, the respiratory monitor according to this invention shown in FIGS. The humidity sensor 3 detects the humidity and emits a signal corresponding to the detected humidity.The sensor circuit 4 converts the signal from the humidity sensor 3 into an output voltage level at regular intervals, and also converts this voltage level to a predetermined value. When the voltage level deviates from the reference voltage, a signal is sent to the external output device 5, and this signal activates the external output device 5, causing the LED The device is configured to issue a warning with a light such as a noise alarm or a sound such as a voltage buzzer to notify the surroundings that the breathing condition has become abnormal, so it is possible to quantitatively and In addition to being able to monitor unattended, if the breathing condition becomes abnormal, it can issue a warning and notify the surroundings (especially doctors, etc.) of abnormalities in the breathing condition of the person receiving oxygen intake. becomes.

Furthermore, if the breathing monitor of this invention is used for sick people who have difficulty breathing or elderly people who have weakened physical strength, the burden on nurses, etc. can be significantly reduced.

In addition, in the above embodiment, the configuration is the first one.
Although shown in FIGS. 3 to 3, the respiratory state is measured by the sensor circuit 4 based on the humidity of breathing and intake air detected by the humidity sensor 3, without being limited thereto, In addition, it determines whether the breathing condition is abnormal, and if the breathing condition becomes abnormal, it emits a signal, and this signal causes the external output device 5 to output a signal.
Of course, any device may be used as long as it operates to notify the surroundings of an abnormality in the breathing condition of a person receiving oxygen inhalation.

[Effect of idea]

By configuring this idea as described above,
Quantitatively measure the respiratory status of people receiving oxygen inhalation.
In addition, it has excellent effects such as being able to perform unattended monitoring and issuing a warning to those around you if the respiratory condition becomes abnormal.

[Brief explanation of drawings]

Fig. 1 is an overall schematic diagram of the respiratory monitor according to this invention, Fig. 2a is a side view of the oxygen inhalation mask shown in Fig. 1, and Fig. 2b is a view showing the inner surface of the one shown in Fig. 2a. , Fig. 3 is a block diagram of the sensor circuit shown in Fig. 1, Fig. 4 is a diagram showing the characteristics of the humidity sensor shown in Fig. 1, and Fig. 5 is a diagram showing the output voltage of the rectifier circuit shown in Fig. 3. FIG. 6 is a diagram showing the state of the output voltage of the average circuit shown in FIG. 3. 1...Inhalation source, 2...Oxygen inhalation mask, 3...
Humidity sensor, 4...sensor circuit, 5...external output device, 6...intake port.

Claims (1)

[Claims for Utility Model Registration] (1) An intake source 1 that supplies a certain amount of oxygen, an oxygen inhalation mask 2 connected to the intake source 1, and an oxygen inhalation mask 2 provided on the inner surface of the oxygen inhalation mask 2. A humidity sensor 3 that detects the humidity at the time and emits a signal corresponding to the humidity, receives the signal from the humidity sensor 3, and averages the received signals at predetermined time intervals to generate a first signal corresponding to the humidity sensor 3. , a sensor circuit 4 that compares this first signal with a second signal corresponding to normal breathing and outputs an output when the first signal deviates from the second signal by a predetermined value or more; A respiratory monitor comprising an external output device 5 that receives and displays the output of the sensor circuit 4. (2) The respiratory monitor according to claim 1, wherein the first signal and the second signal are voltage outputs.