Respiratory function monitoring device

Description: TECHNICAL FIELD [Detailed description of the invention]

【0001】

[Technical field to which the invention belongs]

The present invention relates to a respiratory function monitoring device for examining the state of respiratory failure in a patient with respiratory failure or a patient undergoing oxygen therapy.

【0002】

[Conventional technology]

Oxygen therapy is a treatment method for respiratory failure, but it is necessary to examine the degree of respiratory failure in the treatment, and if oxygen therapy is given, how much the therapy improves the respiratory failure. It is necessary to diagnose whether the treatment is appropriate.

【0003】

Therefore, conventionally, as a method of examining the degree of respiratory failure, the degree of breathlessness in the patient's daily life is examined by interview, light exercise such as walking for 6 minutes is performed, and the degree of breathlessness during that period is heard.₂(Arterial oxygen saturation) is measured.

【0004】

[Problems to be Solved by the Invention]

According to such a conventional technique, since the interview is subjective to the patient, there is a problem that the objectivity is affected. Also, SpO₂There is a problem that this test method is not suitable for the patient's daily activities because it is a measurement during extremely short exercise time, and is not always appropriate for grasping the degree of respiratory failure in the patient's daily life. ..

【0005】

[Means for solving problems]

Therefore, the present invention presents a respiratory detection sensor, a body position / body motion sensor, and a SpO.₂A measurement unit that has a sensor, a storage unit that stores those detection signals, and an output unit that outputs these memories, and analyzes the signal output from this measurement unit to analyze the respiratory rate and SpO.₂It is characterized by consisting of a computer having software for analysis that displays a trend graph of body movements, minutes, and hours.

【0006】

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram, FIG. 2 is an explanatory diagram of the measurement unit, FIG. 3 is an explanatory diagram of each sensor, and FIG. 4 is an explanatory diagram showing a usage state. Sensor and SpO₂A measuring unit consisting of sensors, and the subject's breathing, pulse, and SpO₂Consists of a computer with analysis software to analyze body position and movement detection signals, respiratory rate, pulse rate, SpO₂It has a function to display and memorize information on body position and movement, and a patient who complains of breathlessness or a patient who is inhaling oxygen is allowed to carry a measuring unit for daily measurement, and is analyzed by a computer for treatment guidelines and treatment. The effect is confirmed.

【0007】

The specific structure is as shown in the figure. In the figure, 1 is the measuring unit main body, 2 is the sensor connector provided in the measuring unit main body 1, the mouth / nasal respiration sensor 20, the body position / body movement sensor 30, and SpO.₂Each sensor 40 can be connected via a cable. 10 is a battery and 11 is a power switch. The mouth / nasal breathing sensor 20 is provided with a thermista 21 corresponding to both nasal cavities and the mouth on a film made of polyimide resin or the like, and by attaching it under the nose with a plaster or the like, the temperature during mouth breathing and breathing by nasal breathing. It is designed to detect changes and detect respiration, and the detected signal is stored as time-dependent data on the substrate 3, which is a storage unit provided in the measurement unit main body 1.

【0008】

The body position / body motion sensor 30 has a built-in motion detection sensor such as an acceleration sensor, and turns off when the body position / body motion sensor 30 falls sideways and turns on in the normal position to detect the body position. .. In addition, when the body position / body movement sensor 30 moves in the vertical direction, this movement is detected, and the detected signal is SpO.₂After analog processing on the board 41, it is stored as time-dependent data on the board 3 of the measuring unit main body 1. It should be noted that this body position / body motion sensor does not need to have a body position sensor when it is not necessary or impossible to detect the body position, but since body motion cannot be omitted from the measurement, the body motion sensor is used. is necessary.

【0009】

SpO₂The sensor 40 is a general arterial oxygen saturation measurement sensor using red light and infrared light, and the detected signal is SpO.₂After analog processing on the board 41, it is stored as time-dependent data on the board 3 provided on the main body 1. The detected data is displayed on the liquid crystal screen 6 by the LCD 5 via the LCD substrate 4, and the LED 7 blinks according to the detected pulse and respiration. LED7 also indicates power ON.

【0010】

Therefore, the measurement data stored in the substrate 3 which is the storage unit is transferred to the computer 50 having the analysis software via the connector 8 to analyze the data, and the pulse rate is performed by the monitor or the printer. , Respiratory rate, position and movement, SpO₂Information on such factors is displayed and recorded on a trend graph as shown in Fig. 5.

【0011】

The respiratory rate is displayed for each breath as the respiratory rate per minute . The number of postures displays the posture when the posture changes. The number of body movements is displayed by converting the number of body movements every 10 seconds into the number of body movements per minute. SpO₂Calculates and displays data every second. The display of these data is displayed on the trend graph. Also, respiratory rate, SpO₂A threshold value can be input for each of the body movements, minutes, and hours, and the time zone in which the data value is within the threshold value can be displayed along the trend graph as shown in FIG.

【0012】

Further, by inputting the sleep time by the operation switch 9, the sleep time during the examination time is stored, and is recorded at the same time as each of the above records via the computer 50. If the operation switch 9 is set to input various events of the subject, for example, at the start and end of oxygen inhalation, at the start of climbing stairs, and at the end of the stairs, the trend graph shows the time. Will be displayed.

【0013】

In addition, the presence or absence of oxygen therapy during measurement and the oxygen flow rate in oxygen therapy can be input and displayed on a trend graph. Therefore, patients who complain of respiratory failure or patients who are inhaling oxygen carry the measuring unit to carry out daily measurements, and transfer those memory data to a host computer such as a hospital for analysis. SpO₂By displaying and recording information on body position and movement with a trend graph, it is possible to diagnose respiratory failure and confirm the treatment guideline and therapeutic effect of oxygen therapy.

【0014】

[Effect of the invention]

According to the present invention described in detail above, the respiration detection sensor, the body position / body movement sensor, and the SpO₂A measurement unit having a sensor, a storage unit for storing the detection signals thereof, and an output unit for outputting these memories, and a computer having analysis software for analyzing the signal output from the measurement unit. Respiratory rate, pulse rate, SpO₂, Information on body position and movement can be analyzed and displayed on a trend graph, which has the effect of confirming treatment guidelines and treatment effects by objective judgment.

[Simple explanation of drawings]

[Figure 1]

Block Diagram [Figure 2]

Explanatory drawing of the measuring unit [Fig. 3]

Explanatory drawing of each sensor [Fig. 4]

Explanatory drawing showing the usage state [Fig. 5]

Trend graph example [Explanation of symbols]

1 Measuring unit body 2 sensor connector 3 board 4 LCD board 5 LCD 6 LCD screen 7 LED 8 connector 9 Operation switch 20 Mouth / Nose Respiratory Sensor 21 Thermistor 30 Posture / movement sensor 40 SpO₂Sensor 41 SpO₂substrate 50 computers