WO2008001607A1

WO2008001607A1 - Apnea management apparatus for improving apnea

Info

Publication number: WO2008001607A1
Application number: PCT/JP2007/061822
Authority: WO
Inventors: Osamu Shirasaki; Ryo Fukui
Original assignee: Omron Healthcare Co., Ltd.
Priority date: 2006-06-28
Filing date: 2007-06-12
Publication date: 2008-01-03
Also published as: JP2008005964A

Abstract

An apnea management apparatus displays the form of variations of the apnea frequency index and the physiological index (such as the blood pressure or the weight) of a subject for a predetermined period along the same time axis. The user can specify the type of the physiological index and the predetermined period. The apnea management apparatus can display the correlation coefficient between the apnea frequency index and the physiological index.

Description

Specification

Apnea management device to improve apnea

Technical field

TECHNICAL FIELD [0001] The present invention relates to an apnea management device and an apnea management program product.

The present invention relates to an apnea management device and an apnea management program product for displaying information on apnea / hypopnea state such as during sleep.

Background art

[0002] Recently, a portable pulse phone that can self-measure oxygen saturation (SpO) in the blood at home.

2

Ximometers are commercially available. Pulse oximeters are used to monitor apnea conditions by taking advantage of the fact that oxygen saturation decreases when breathing temporarily stops and oxygen supply from the lungs stops. Yes. In addition, as an index specifically indicating the severity of sleep apnea syndrome (hereinafter referred to as “SAS (Sleep Apnea Syndrome)”) ) Is converted into the number of times per hour (hereinafter referred to as “ODI (Oxygen Desaturation Index)”).

[0003] Usually, in order to obtain ODI, oxygen saturation is analyzed separately by dedicated analysis software on a computer such as a personal computer (hereinafter referred to as "PC"). For example, Patent Document 1 (Japanese Patent Laid-Open No. 2005-312913) discloses a biological information measuring device that displays not only the oxygen saturation but also the ODI value and the frequency of decrease in the oxygen saturation every hour in the night. It is disclosed.

Patent Document 1: Japanese Patent Laid-Open No. 2005-312913

Disclosure of the invention

Problems to be solved by the invention

[0004] It is generally considered that SAS is closely related to lack of exercise, obesity associated therewith, and high blood pressure!

[0005] That is, lack of exercise is believed to promote obesity and cause sleep apnea. In addition, apnea during sleep prevents deep sleep and activates sympathetic nerves to increase nighttime blood pressure. It is also thought to promote arteriosclerosis because it increases (nocturnal hypertension). Atherosclerosis increases daytime blood pressure and progresses to persistent hypertension. This mechanism of hypertension has recently attracted attention as a metabolic 'syndrome, and it is thought that hypertension in many patients is due to this mechanism. For example, 30% of hypertensive patients are SAS patients and 30% of SAS patients are hypertensive.

[0006] In order to reduce high blood pressure, it is often necessary to first eliminate obesity! For this purpose, for example, daily exercise habits (exercise therapy) and dietary therapy are required. It is said to be effective. However, exercise therapy and diet therapy require daily efforts and often take a long time to develop, so they often do not last long. This is because even if it is known that it will lead to disease prevention, simply exercising or restricting meals will not be effective. In fact, hypertension as a result of lack of exercise or excessive caloric intake can cause organ damage, which is quite progressive and powerful.

[0007] The present invention has been conceived in view of such circumstances, and an object of the present invention is to allow the user to continue the treatment for improving the apnea condition itself or the symptoms that cause it. An apnea management apparatus and an apnea management program that can be displayed in a manner that can provide motivation for the purpose.

Means for solving the problem

[0008] The apnea management device according to the present invention includes a first acquisition means for acquiring an apnea frequency index representing the occurrence frequency of apnea hypopnea, and a physiological index related to apnea hypopnea. Second acquisition means to acquire, data creation means for creating data for displaying changes in apnea frequency index and physiological index on the same time axis, and data created by the data creation means are displayed. Display means for displaying on the apparatus.

[0009] Preferably, at least one of the first acquisition unit and the second acquisition unit acquires an index stored in an external device by communicating with the external device.

[0010] Preferably, the first acquisition means includes an oxygen saturation measurement means for measuring oxygen saturation in the blood of the subject, and an apnea hypopnea based on the oxygen saturation measured by the oxygen saturation measurement means. A determination unit that determines whether or not an occurrence of the anomaly, a calculation unit that calculates an apnea frequency index based on a determination result by the determination unit, and an apnea frequency index calculated by the calculation unit are stored. Apnea frequency index storage means.

[0011] Preferably, the second acquisition means includes a biological information measuring means for measuring the biological information of the subject and a predetermined calculation for the biological information measured by the biological information measuring means or the measured biological information. Physiological index storage means for storing the results obtained as physiological indices.

[0012] Preferably, the physiological index includes a blood pressure, a body weight, a measured value related to body composition, and the number of steps of the subject.

Or a measurement value related to arteriosclerosis.

[0013] Preferably, the data creation means further includes period information reception means for creating apnea frequency index and physiological index data for a predetermined period and receiving input of information designating the predetermined period.

[0014] Preferably, the apparatus further comprises a type information receiving means for receiving an input of information specifying the type of physiological index.

[0015] Preferably, the apparatus further comprises a storage location storage means for storing the type of the physiological index and the storage location of the physiological index, and the second acquisition means stores the information when information is input to the type information reception means. A physiological index is acquired from the storage location stored in correspondence with the information input to the location storage means.

[0016] Preferably, the data creation means creates apnea frequency index and physiological index data for a predetermined period, and at least one of the apnea frequency index and the physiological index is greater than the predetermined period. Data for display is created so that the mode of change of the average value for each short specific period is displayed.

[0017] Preferably, the apparatus further comprises correlation coefficient calculation means for calculating a correlation coefficient between an apnea frequency index and a physiological index, and the display means uses the correlation coefficient calculated by the correlation coefficient calculation means as a display device. Display.

[0018] Preferably, the display means causes the display device to display the correlation coefficient calculated by the correlation coefficient calculation means together with the data created by the data creation means.

[0019] Preferably, it further includes an operation means operated from the outside, and the display means is a case where the data created by the data creation means is displayed on the display device, and a predetermined operation is performed on the operation means. The correlation coefficient calculated by the correlation coefficient calculation means is displayed on the condition that Display on the display device.

[0020] Preferably, the information processing device further includes evaluation information storage means for storing information for evaluating the correlation between the physiological index and the physiological index based on the correlation coefficient calculated by the correlation coefficient calculation means.

[0021] Preferably, the display unit changes a display mode of information on the display device according to a value of the correlation coefficient.

[0022] An apnea management program product according to the present invention is an apnea management program product for displaying information on the occurrence frequency of apnea hypopnea, and represents the occurrence frequency of apnea hypopnea. Obtaining an apnea frequency index, obtaining a physiological index related to apnea hypopnea, and displaying changes in apnea frequency index and physiological index on the same time axis. The computer is caused to execute a step of creating data and a step of displaying the created data on a display device. The invention's effect

[0023] According to the present invention, changes in the apnea index and other physiological indices (exercise, obesity information, blood pressure, etc.) are simultaneously displayed on the same time axis. Thus, for example, when the apnea index is improved as a result of the exercise therapy, the user can easily and reliably recognize that the improvement is due to the exercise therapy. Therefore, the user can realize the effect of the therapy that contributes to the improvement of the apnea index at an early stage. For this reason, the display according to the present invention can be a motivation for the user to continue treatment.

Brief Description of Drawings

FIG. 1 is a diagram showing an example of the appearance of an apnea management device according to a first embodiment of the present invention.

FIG. 2 is a hardware block diagram of the apnea management device of FIG. 1.

FIG. 3 is a functional block diagram of the apnea management device of FIG. 1.

4 is a flowchart of sleep related information display processing executed in the apnea management device of FIG.

5 is a flowchart of the apnea detection process subroutine of FIG. 4.

6 is a diagram for explaining a method for determining apnea in the apnea management device of FIG. 1. FIG. 7 is a diagram showing an example of the number of occurrences of apnea detected by the apnea management device of FIG. 1.

FIG. 8 is a flowchart of a display data creation process subroutine of FIG.

FIG. 9 is a flowchart of a display data creation process subroutine of FIG.

FIG. 10 is a diagram showing an example of a multiple index display on the display unit of the apnea management device of FIG. 1.

FIG. 11 is a diagram showing another example of multiple index display on the display unit of the apnea management device of FIG. 1.

12 is a diagram showing an example of the display of correlation information on the display unit of the apnea management device of FIG. 1.

FIG. 13 is a diagram showing another example of displaying correlation information on the display unit of the apnea management device of FIG. 1.

FIG. 14 is a hardware block diagram of an apnea management device according to a second embodiment of the present invention.

FIG. 15 is a functional block diagram of the apnea management device of FIG.

FIG. 16 is a hardware block diagram of an apnea management device according to a third embodiment of the present invention.

FIG. 17 is a functional block diagram of the apnea management device of FIG.

FIG. 18 is a hardware block diagram of an apnea management device according to a fourth embodiment of the present invention.

FIG. 19 is a functional block diagram of the apnea management device of FIG.

Explanation of symbols

1 Apnea management device, 10 Main unit, 11 CPU, 12 Light emitting element drive circuit, 13 Amplification 'AD converter circuit, 14 Power supply unit, 15 Memory unit, 16 Timer, 17 Communication lZF, 19 Measurement unit, 20 Sensor unit, 21, 22 Light emitting element, 23 Light receiving element, 30 Wiring, 40 cuff, 50 Display section, 60 Operation section, 61 Measurement Z stop button, 62 Left button, 63 Right button, 6 4 Setting button, 70 Oxygen saturation measurement section, 110 Oxygen saturation measurement control unit, 111 No call Suction determination unit, 117 index acquisition unit, 118 storage processing unit, 119 display control unit, 151 measurement result storage area, 1101 clock, 1102 pulse wave amplitude calculation unit, 1103 pulse wave amplitude comparison unit, 1 104 oxygen saturation calculation unit 1171 Occurrence counting part, 1172 ODI calculating part.

BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment]

FIG. 1 is a diagram showing an example of an appearance of an apnea management device 1 according to the first embodiment of the present invention.

Referring to FIG. 1, apnea management device 1 includes a main unit 10 and a sensor unit 20 for mounting on a measurement site (for example, a fingertip) of a subject. The main unit 10 and the sensor unit 20 are electrically connected via the wiring 30.

[0028] On the surface of the main unit 10, a display unit 50 for displaying various information and an operation unit 60 for receiving instructions from a user are provided. Further, on the back surface of the main unit 10, a cuff 40 for mounting on a predetermined part (for example, wrist) of the user is provided.

[0029] For example, the operation unit 60 receives a measurement Z stop button 61 for receiving measurement start and stop instructions, and an instruction for moving the cursor displayed on the display unit 50 to the left. Left button 62, right button 63 for receiving an instruction to move the cursor displayed on display unit 50 in the right direction, and setting button 64 for receiving an instruction for setting information displayed on display unit 50 including. In the present embodiment, the left button 62 and the right button 63 further have various functions such as starting a sleep related information display process to be described later by pressing them simultaneously.

FIG. 2 is a nodeware block diagram showing a hardware configuration of apnea management apparatus 1 in the present embodiment.

[0031] The sensor unit 20 includes light emitting elements 21 and 22 that emit infrared rays having at least two different center wavelengths, and light reception for detecting the amount of infrared rays emitted from the light emitting elements 21 and 22 and transmitted through the measurement site. And element 23.

[0032] In addition to the display unit 50 and the operation unit 60 described above, the main unit 10 amplifies the output of the light emitting element drive circuit 12 for driving the light emitting elements 21 and 22 and the light receiving element 23 for each wavelength, and AD (Analog I Digital) Amplification to convert 'AD conversion circuit 13 and CP for various arithmetic processing U (Central Processing Unit) 11, power supply unit 14, memory unit 15 for storing various data and programs, timer 16 for timing operation, and communication for communication with external devices IZF (interface ) 17

[0033] The main unit 10 includes a media I / F 11A for reading and writing information with respect to the external media 900. The program executed by the CPU 11 may be stored in the memory unit 15 or may be stored in the external medium 900. The external medium 900 is composed of, for example, a CD-ROM (Compact Disk Read Only Memory) or an SD memory card (Secure Digital memory card).

FIG. 3 is a functional block diagram showing a functional configuration of the apnea management device 1 according to the present embodiment of the present invention.

[0035] The CPU 11 controls the light-emitting element drive circuit 12 and the amplification 'AD conversion circuit 13 to measure the oxygen saturation in the blood of the subject, and an oxygen saturation measurement control unit 110 for each measurement period. An apnea determination unit 111 for determining the occurrence of apnea hypopnea (respiration stop or hypopnea state (hereinafter simply referred to as “apnea”)) based on the measured oxygen saturation Based on the determination result of the apnea determination unit 111, an index acquisition unit 117 that acquires ODI, which is an index indicating the frequency of occurrence of apnea hypopnea, and an index according to the output from the index acquisition unit 117 are oxygen A storage processing unit 119 that performs processing for storing the measurement result in the measurement result storage area 151 of the memory unit 15 in association with the measurement condition at the time of the saturation measurement, and the index and other physiological data stored in the measurement result storage area 151 Create data to acquire the index and display it on the display unit 50 And a display control unit 119 that performs processing for displaying the data on the display unit 50.

The oxygen saturation measurement control unit 110 includes a clock 1101, a pulse wave amplitude calculation unit 1102, a pulse wave amplitude comparison unit 1103, and an oxygen saturation calculation unit 1104.

[0037] The oxygen saturation measurement control unit 110 controls the light emitting element driving circuit 12 at a timing defined by the clock 1101 so that the light emitting elements 21 and 22 emit two wavelengths of infrared light alternately. The infrared light that has passed through the measurement site of the subject and reached the light receiving element 23 is detected by the light receiving element 23. At this time, the arterial volume change accompanying the pulsation of the intra-arterial pressure is reflected in the output of the light receiving element 23 as a change in the transmitted light amount. This is called a photoelectric pulse wave (hereinafter simply “pulse wave”) Say. When the pulse wave signal is sent from the light receiving element 23 to the amplified 'AD converter circuit 13, pulse waves having different wavelengths are separately amplified and AD converted at the timing specified by the clock 1101. The AD-converted pulse wave signal is sent to pulse wave amplitude calculation section 1102.

[0038] Pulse wave amplitude calculation section 1102 recognizes the pulse wave obtained from amplification and AD conversion circuit 13 in units of one beat, and calculates the amplitude of each pulse wave. The pulse wave amplitude comparison unit 1103 obtains the ratio of the pulse wave amplitudes of the two wavelengths calculated by the pulse wave amplitude calculation unit 1102. The oxygen saturation calculation unit 1104 calculates the oxygen saturation based on the calculated pulse wave amplitude ratio. The oxygen saturation calculation unit 1104 calculates the oxygen saturation in the blood of the subject based on the relationship between the pulse wave amplitude ratio and the oxygen saturation stored in advance in the program. For example, the oxygen saturation is calculated for each heartbeat, and the calculated oxygen saturation data is recorded in the internal memory together with the pointer i attached to each heartbeat.

[0039] In the present embodiment, the light emitting elements 21, 22, the light receiving element 23, the light emitting element driving circuit 12, the amplification 'AD conversion circuit 13, and the oxygen saturation measurement control unit 110 are used for measuring oxygen saturation. It functions as the oxygen saturation measuring unit 70. Note that the configuration of the oxygen saturation measuring unit 70 and the method for calculating the oxygen saturation employed in the apnea management device according to the present invention are not limited to the above.

In the present embodiment, the “measurement condition” includes, for example, a measurement date.

In the present embodiment, “ODI” represents the frequency of apnea occurrence on each measurement day.

[0041] The index acquisition unit 117 includes an occurrence count unit 1171 for counting the number of occurrences of apnea in one measurement (an apnea detection process described later), and an occurrence count counted by the occurrence count unit 1171. And an ODI calculation unit 1172 for calculating ODI in one measurement based on the number of occurrences of respiration.

The storage processing unit 118 stores the ODI calculated by the ODI calculation unit 1172 in the measurement result storage area 151 as an apnea frequency index.

[0043] The display control unit 119 displays the apnea frequency index stored in the measurement result storage area 151 and the physiological index obtained from the external device force via the communication I ZF17 on the same time axis. ) Is generated, the data is sent to the display unit 50, and the data is displayed on the display unit 50. The above “acquired physiological indicators” For example, measurement values related to blood pressure, body weight, body composition, number of steps, or measurement values related to arteriosclerosis are included. The measured value related to arteriosclerosis includes, for example, pulse wave velocity (PWV).

[0044] It should be noted that each component in the functional block shown in FIG. 3 may be realized by executing software stored in the memory unit 15, or at least one as hardware. May be implemented.

The apnea management device 1 has a function of simultaneously displaying an apnea frequency index and a physiological index other than the apnea frequency index for the same subject on the same time axis. FIG. 4 is a flowchart of the sleep-related information display process executed when the apnea management apparatus 1 of the present embodiment performs such display. The contents of this process will be described below.

Referring to FIG. 4, in apnea management device 1, first in step SA10, CPU 11 determines whether or not the measurement Z stop button 61 has been pressed. If it is determined that the button has not been pressed, the process proceeds to step SA40.

[0047] In step SA20, an apnea detection process for acquiring an apnea frequency index is executed. Here, the content of the apnea detection process will be described with reference to FIG. 5 which is a flowchart of the subroutine of the process.

Referring to FIG. 5, in the apnea detection process, apnea determination unit 111 initializes counter N for counting the number of occurrences of apnea and pointer i of oxygen saturation data to 0 ( Next, a variable Tst that stores the time of the start point of the hypoxic state and a variable Ten that stores the time of the end point are each initialized to 0 (step S108).

[0049] Next, apnea determination unit 111 increments pointer i by 1 (step S110), and reads oxygen saturation data SpO (i) corresponding thereto (step SI12). And read

2

SpO (i) crosses the threshold upward, crosses downward, or the threshold crossing

2

It is judged whether it is ugly (step S114). When SpO (i) crosses the threshold and is judged to be ugly

2

If so, go to Step S116. When it is determined that SpO (i) crosses the threshold value downward

2

Proceed to step S130. If it is determined that SpO (i) crosses the threshold upward,

2

Go to step S132. Note that the judgment regarding the intersection here is, for example, oxygen saturation data. Data SpO (i) and the previously measured oxygen saturation data SpO (i—1).

twenty two

[0050] In step S130, apnea determination unit 111 acquires the current time based on the output from timer 16, and sets variable Tst to variable T (i) representing the current time. When this process ends, the process proceeds to step S134.

[0051] In step S132, apnea determination unit 111 acquires the current time based on the output from timer 16, and sets variable Ten to variable T (i) representing the current time. When this process ends, the process proceeds to step S134.

[0052] In step S116, apnea determination unit 111 determines whether SpO (i) is less than the threshold value.

2

Judging. When it is determined that SpO (i) is less than the threshold (in step S116)

2

YES), go to step S118. On the other hand, if it is determined that SpO (i) is greater than or equal to the threshold (

2

Step S116 [NO!) Step S122 [Proceed.

[0053] In step S118, the apnea determination unit 111 calculates a difference between a variable T (i) indicating the current time and a variable Tst indicating the start point of the low oxygen state, which is a predetermined interval T (for example, 10 seconds). ) Judge whether it is longer. If it is determined that the difference between the variable T (i) and the variable Tst is longer than the predetermined interval T (YES in step S118), the process proceeds to step S120. On the other hand, when it is determined that the difference between the variable T (i) and the variable Tst is equal to or smaller than the predetermined interval T (NO in step S118), the process proceeds to step SI34.

In step S120, a flag F1 indicating a hypoxic condition (an apnea condition) is set to 1. When this process ends, the process proceeds to step S134.

[0055] As described above, apnea is not started until the time when SpO (i) is less than the threshold exceeds the predetermined interval T.

twenty one

It is determined that it has occurred. This will be specifically described with reference to FIG. Figure 6 shows a graph with the vertical axis representing SpO and the horizontal axis representing time. Apnea determination unit 111

2

Even if SpO is less than the threshold Vx, the current time T (i) is Tst (SpO falls below the threshold Vx.

2) If it is between Tx (Tst + predetermined interval T), it is not determined that apnea has occurred. If the current time T (i) exceeds Tx, it is determined that apnea has occurred.

[0056] In step S122, a variable T (i) indicating the current time and a variable indicating the end point of the SpO decrease

2

Calculate the difference from Ten and determine if it is longer than a certain interval T (eg 2 seconds).

2

When it is determined that the difference between the variable T (i) and the variable Ten is longer than the predetermined interval T (step S122 YES), go to step SI24. On the other hand, when it is determined that the difference between the variable T (i) and the variable Ten is equal to or smaller than the predetermined interval T (NO in step S122), the process proceeds to step S134.

2

[0057] In this way, SpO (i) returns from an apnea state to a normal state (SpO (i) exceeds the threshold).

twenty two

If the time above the threshold is less than the predetermined interval τ,

2

Determined. Thereby, the detection accuracy of the occurrence frequency of apnea can be improved.

[0058] In step S124, apnea determination unit 111 determines whether flag F1 is 1. If flag F1 is determined to be 1 (YES in step S124), step

Proceed to S126. On the other hand, if it is determined that the flag F1 is not 1 (in step S124)

NO), go to step SI34.

In step S 126, the occurrence count counting unit 1122 increments the force counter N by 1 assuming that apnea has occurred. As a result, the number of apnea occurrences is counted as shown in FIG. FIG. 7 shows a state in which five apneas are detected.

Subsequently, apnea determination unit 111 resets flag F1 to 0 (step S128). When this process ends, the process proceeds to step S134.

In step S134, it is determined whether or not the force at which a series of measurements has been completed, that is, the force at which the oxygen saturation measurement period has ended. If it is determined that the measurement period has not ended (NO in step S134), the process returns to step S110. On the other hand, if it is determined that the process has been completed, after ODI is calculated (step S242), the process is returned to step SA20 (see FIG. 4). The calculation of ODI here is to calculate the number of apneas per unit time by dividing the value of counter N by the measurement time. In step S134, for example, it is determined that the measurement period has ended when the measurement Z stop button 61 is pressed again. That is, when the user operates the measurement Z stop button 61 at bedtime and operates the measurement Z stop button 61 again when waking up, the apnea management device 1 causes the unit time of the number of occurrences of overnight apnea to occur. Get the hit frequency as ODI.

[0062] Referring to FIG. 4 again, after acquiring the ODI in step SA20, CPU 11 stores the acquired ODI in the measurement result storage area 151 together with the measurement date in step SA30, and processes it in step SA40. To proceed. Note that the memory unit 15 stores the following information, including information (ODI information) including the ODI and the measurement date.

[0064] 'ODI information

• Data acquisition information

Evaluation information

The data acquisition information is information for acquiring a physiological index other than the apnea frequency index for the subject (the user of the apnea management apparatus 1) from an external device. For example, the type of the physiological index It includes information specifying (blood pressure, weight, etc.), information specifying the external device, and information specifying the subject.

[0065] Evaluation information is information for evaluating the correlation between an apnea frequency index and a physiological index, and is given to the correlation coefficient values of these indices calculated as described later. Information on evaluation.

[0066] In step SA40, CPU 11 determines whether a data display request is received from the user. The data display request here is a request for simultaneous display of apnea frequency index and physiological index (hereinafter also referred to as multiple index display), and specifically, a specific display corresponding to the request to the operation unit 60. It is an operation. If it is determined that there is such a request, that is, such an operation, the process proceeds to step SA50, and if it is determined that there is no such operation, the process returns to step SA10.

[0067] In step SA50, CPU 11 accepts input of information for multi-index display, and proceeds to step SA60. The information input here is, for example, information for specifying the type of physiological index (hereinafter referred to as type information), information for specifying a period for which multiple indicators are displayed (hereinafter referred to as target period information), Includes information that identifies the unit period in the multi-index display (hereinafter referred to as unit period information).

[0068] Note that if apnea management device 1 is configured to specify some of these in advance, in step SA50, the information specifying the information is not input. For example, in the multi-index display, when the physiological index displayed as the apnea frequency index is fixed to the blood pressure, the type information is not included in the information input in step SA50. In addition, the apnea management device 1 is configured to specify all of these information in advance. If so, the process of step SA50 is omitted. In other words, for example, the apnea management device 1 is configured to always display the apnea frequency index and the number of steps per day for the past month in the multi-index display, or the apnea frequency is always displayed. If the indicator and weight are configured to display weekly average data for the past year, step SA50 is omitted.

[0069] In step SA60, CPU 11 obtains data necessary for display of multiple indices based on the information input in step SA50, and advances the process to step SA70. For example, if “steps” is entered as the type information and “1 year” is entered as the target period information, the CPU 11 reads the ODI for the past year from the measurement result storage area 151 and the user from an external device. Get data on the number of steps for the past year. In this case, the CPU 11 refers to the data acquisition information stored in the memory unit 15 when acquiring the step count data.

[0070] In step SA70, CPU 11 creates display data based on the data acquired in step SA60. The process executed in step SA70 will be described with reference to FIG. 8 which is a flowchart of the subroutine of the process.

Referring to FIG. 8, first in step SA701, CPU 11 reads unit period information that has been accepted in step SA50 (or previously stored in apnea management device 1). In step SA703, the CPU 11 creates data for the graph using the data acquired in step SA60 and the unit period information read in step SA701, and performs processing in step SA70 (see FIG. 4). ). Figure 10 shows a display example based on the graph data created here. In the graph shown in Fig. 10, ODI (apnea frequency index) and the number of steps (physiological index) show the change in values on the same time axis (horizontal axis).

[0072] If a unit period longer than the unit period in which the apnea frequency index or the physiological index is stored is input as the unit period information, the CPU 11 determines whether each apnea frequency in step SA703. For the indicators and physiological indicators, average values are calculated for each period specified by the unit period information and used to create data for the graph.

[0073] Referring to Fig. 4 again, after creating data in step SA70, CPU 11 causes display unit 50 to display the created data in step SA80. At this time, the display unit 50 A graph like the one shown in Figure 10 is displayed. In this case, the apnea frequency index and the physiological index are preferably displayed with different line types or different colors. Note that the physiological index displayed together with the apnea frequency index in the apnea management apparatus 1 of the present invention is not limited to the number of steps, and may be another physiological index such as a blood pressure value as shown in FIG. Also good.

[0074] After displaying the graph in step SA80, CPU 11 determines in step SA90 whether or not the correlation information display request has been requested. Return processing to step SA10. The correlation information display request is a request to display information regarding the correlation between the apnea frequency index displayed in step SA80 and the physiological index, and is, for example, a predetermined operation on the operation unit 60.

[0075] In step SA100, CPU 11 creates data for displaying information relating to correlation, and proceeds to step SA110. Here, the contents of the process in step SA100 will be described with reference to FIG. 9 which is a flowchart of the subroutine of the process.

[0076] Referring to FIG. 9, CPU 11 first reads the data for the graph created in step SA70 in step SA1001, and then calculates the correlation coefficient between the apnea frequency index and the physiological index in step SA1003. In step SA1005, data for displaying information (correlation information) to be displayed as the correlation of these indexes is created based on the correlation information, and the process returns to step SA100.

Note that the correlation information is information indicating the degree of correlation according to the correlation coefficient, for example, and is a band graph as shown in FIG. 12, for example. In this band graph, the degree of “weak” and “strong” shown at both ends of the band graph is displayed along with the correlation coefficient (“0.58” in FIG. 12).

Further, as another example of the correlation information, “no effect”, “recommendation”, “reduction” in the value area with respect to the value of the correlation number shown in the band graph as shown in FIG. A label giving a rating of “strongly recommended” is also possible. In FIG. 13, “no effect”, “recommendation”, and “strong recommendation” mean the ability to recommend whether there is no effect on the exercise corresponding to the physiological index in order to lower the apnea frequency index. In other words, when the ODI and the number of steps are displayed in the multi-index display, and these correlation coefficients are high, the number of steps (that is, the amount of exercise called walking) It is effective for lowering SODI and recommends walking and exercise for lowering ODI. In Figure 13, “Recommended” and “Strongly Recommended” change in the area R1, and “No Effect” and “Recommended” change in the area R2, so that the ratio changes. It is shown. The center of region R1 in the left-right direction corresponds to the value of correlation coefficient 0.70, and the center of region R2 in the left-right direction corresponds to the value of correlation coefficient 0.40. Information for evaluating correlation, including information for determining the positions of the regions Rl and R2 (values of the above 0.70 and 0.40) is stored in the memory unit 15.

[0079] Referring again to FIG. 4, after creating display data in step SA100, CPU 11 causes display unit 50 to display the created data in step SA110 and ends the process.

[0080] In the present embodiment described above, in the apnea management device 1, as shown in Fig. 10 or Fig. 11, the apnea frequency for a certain user (subject) is displayed on the display unit 50 as a multiple index display. The mode of change of the index and physiological index (blood pressure, weight, etc.) over a predetermined period is displayed on the same time axis. The user can specify the type of physiological index and a predetermined period. Furthermore, in the apnea management apparatus 1, as shown in FIG. 12 or FIG. 13, the correlation coefficient between the apnea frequency index and the physiological index can be displayed on the display unit 50. Further, in the present embodiment, the multiple index display and the correlation coefficient may be displayed simultaneously with 1S displayed separately.

[0081] By displaying the correlation coefficient in the apnea management device 1, the effect of exercise therapy and lowering blood pressure can be understood as mildness of apnea! It is possible to objectively judge whether or not the conversion has led to a reduction in arteriosclerosis.

In addition, the apnea management apparatus 1 can also obtain information such as a low correlation between the number of steps and mildness of apnea. As a result, for example, when the apnea index does not improve due to exercise therapy, the user can recognize the fact and can take measures to search for a new improvement measure.

[0083] As described above, the display of multiple indicators and the display of correlation information in the apnea management apparatus of the present invention can realize the effects of various treatment methods at an early stage, and the user can continue the treatment. At the same time, it can be used to select treatments. In the present embodiment described above, apnea management apparatus 1 includes display unit 50 as a display device, and a plurality of indicators are displayed on display unit 50. Note that the apnea management device according to the present invention does not necessarily need to have a display device inside. The display data for displaying multiple indicators is transmitted to a wired or wirelessly connected display device. By doing so, it is okay to display on the display device.

[0085] [Second Embodiment]

FIG. 14 shows a hardware block diagram and FIG. 15 shows a functional block diagram of the apnea management device 1 of the present embodiment.

[0086] The apnea management device 1 of the first embodiment stores an apnea frequency index by itself and acquires a physiological index from an external device.

[0087] On the other hand, apnea management apparatus 1 of the present embodiment further includes a measurement unit 19, in which measurement for calculating a physiological index is performed, and the physiological index is measured by itself. Is calculated.

[0088] Note that the measurement unit 19 is a unit that measures the blood pressure of the subject when the physiological index is blood pressure, and a unit that measures the weight of the subject when the physiological index is body weight. Yes, it is a unit that measures the body composition when the physiological index is a measurement value related to the body composition, and it is a unit that measures the number of steps when the physiological index is the number of steps. If the index is a measurement value related to arteriosclerosis, this is a unit that measures PW V, etc.

Further, the value measured by the measurement unit 19 is stored in the measurement result storage area 151 together with the measurement condition by the storage processing unit 118.

In the present embodiment, in the sleep-related information display process, the CPU 11 has acquired data relating to a physiological index from an external device in step SA50 (see FIG. 4) of the first embodiment. On the other hand, a value is acquired from the measurement result storage area 151.

[0091] [Third embodiment]

FIG. 16 shows a hardware block diagram and FIG. 17 shows a functional block diagram of apnea management device 1 of the present embodiment.

[0092] The apnea management device 1 of the first embodiment stores an apnea frequency index in its own device, Physiological indicators were obtained from external devices.

On the other hand, the apnea management device 1 of the present embodiment includes a measurement unit 19 instead of the oxygen saturation measurement unit 70, and the measurement unit 19 performs measurement for calculating a physiological index. Physiological index is calculated by the machine and apnea frequency index is obtained from an external device.

[0094] In the apnea management apparatus 1 of this embodiment, the CPU 11 calculates and stores the ODI in Step SA10 to Step SA30 of the first embodiment in the sleep-related information display processing. Furthermore, in step SA50, data related to physiological indicators is acquired from an external device, whereas ODI corresponding to a predetermined period is acquired from an external device, and physiological data corresponding to the predetermined period is acquired. Data related to the index is acquired from the measurement result storage area 251 and data for displaying multiple indexes is created.

[0095] [Fourth Embodiment]

As for apnea management device 1 of the present embodiment, FIG. 18 shows a hardware block diagram, and FIG. 19 shows a functional block diagram.

The apnea management device 1 according to the first embodiment stores the apnea frequency index by itself and acquires the physiological index from an external device.

On the other hand, the apnea management device 1 of the present embodiment does not include the oxygen saturation measurement unit 70, and also acquires an apnea frequency index from an external device.

[0098] In the apnea management apparatus 1 of the present embodiment, the CPU 11 calculates and stores the ODI in Step SA10 to Step SA30 of the first embodiment in the sleep related information display processing. On the other hand, ODI corresponding to a predetermined period is acquired from an external device, and data for multi-index display is created.

[0099] Each embodiment disclosed this time should be considered as V in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims. In addition, the above-described embodiments are intended to be realized by being combined as much as possible.

Industrial applicability INDUSTRIAL APPLICABILITY The present invention can be widely used for an apparatus that displays information related to an apnea-hypopnea state, and in particular, an apparatus that displays information for promptly realizing the effect of a therapy that contributes to improvement of an apnea index to a user. It is suitable for.

Claims

The scope of the claims

[1] A first acquisition means (7 0, 111, 117) for acquiring an apnea frequency index indicating the occurrence frequency of apnea hypopnea;

Second acquisition means (17) for acquiring a physiological index related to apnea / hypopnea, and data for displaying the apnea frequency index and a change mode of the physiological index on the same time axis. Data creation means (119) to create;

An apnea management device, comprising: display means (50) for displaying data created by the data creation means on a display device.

[2] According to claim 1, wherein at least one of the first acquisition unit and the second acquisition unit acquires an index stored in an external device by communicating with the external device. The apnea management device described.

[3] The first acquisition means includes:

Oxygen saturation measuring means (12, 13, 21-23, 110) for measuring the oxygen saturation in the blood of the subject,

Based on the oxygen saturation measured by the oxygen saturation measuring means !, determining means (111) for determining the presence or absence of occurrence of apnea hypopnea,

Calculation means (117) for calculating the apnea frequency index based on a determination result by the determination means;

The apnea management device according to claim 1, further comprising an apnea frequency index storage means (151) for storing the apnea frequency index calculated by the calculation means.

[4] The second acquisition means includes

Biological information measuring means (19) for measuring the biological information of the subject,

A physiological index storage unit (151) for storing, as the physiological index, biological information measured by the biological information measuring unit or a result obtained by performing a predetermined calculation on the measured biological information. An apnea management device according to paragraph 1 of the above.

5. The apnea management apparatus according to claim 1, wherein the physiological index is a measured value related to blood pressure, weight, body composition, number of steps, or measured value related to arteriosclerosis of the subject.

[6] The data creation means includes the apnea frequency index and the physiological data for a predetermined period. The data of pharmacological indicators,

The apnea management apparatus according to claim 1, further comprising period information receiving means (60) for receiving input of information designating the predetermined period.

[7] Type information receiving means for receiving input of information specifying the type of physiological index (6

The apnea management device according to claim 1, further comprising: 0).

[8] Memory location storage means (15) for storing the type of the physiological index and the memory location of the physiological index,

The second acquisition unit acquires the physiological index from the storage location stored in correspondence with the input information in the storage location storage unit when information is input to the type information reception unit. The apnea management device according to claim 7.

[9] The data creation means creates data of the apnea frequency index and the physiological index for a predetermined period, and at least one of the apnea frequency index and the physiological index from the predetermined period The apnea management device according to claim 1, wherein the display data is created so as to display a mode of change of the average value for each short specific period.

[10] Correlation coefficient calculating means (11) for calculating a correlation coefficient between the apnea frequency index and the physiological index further comprises

The apnea management device according to claim 1, wherein the display means displays the correlation coefficient calculated by the correlation coefficient calculation means on the display device.

[11] The apnea management according to claim 10, wherein the display unit displays the correlation coefficient calculated by the correlation coefficient calculation unit together with the data generated by the data generation unit on the display device. apparatus.

[12] It further comprises operating means (60) operated by an external cover,

The display means is a case where the data created by the data creation means is displayed on the display device, provided that a predetermined operation is performed on the operation means.

The apnea management apparatus according to claim 10, wherein the correlation coefficient calculated by the correlation coefficient calculation means is displayed on the display device.

[13] Based on the correlation coefficient calculated by the correlation coefficient calculation means, the physiological index and the previous The apnea management apparatus according to claim 10, further comprising evaluation information storage means for storing information for evaluating a correlation with the physiological index.

14. The apnea management device according to claim 13, wherein the display means changes a display mode of information on the display device according to a value of the correlation coefficient.

[15] An apnea management product product for displaying information on the frequency of occurrence of apnea hypopnea,

Obtaining an apnea frequency index representing the frequency of occurrence of apnea hypopnea; obtaining a physiological index associated with apnea hypopnea;

Creating data for displaying changes in the apnea frequency index and the physiological index on the same time axis;

A program product for apnea management, which causes a computer to execute the step of displaying the created data on a display device.