WO2018193955A1

WO2018193955A1 - Deglutition function testing system using 3d camera

Info

Publication number: WO2018193955A1
Application number: PCT/JP2018/015342
Authority: WO
Inventors: 佐藤　秀夫; 祐士山本; 洋一朗岩下; 要一山▲崎▼
Original assignee: 国立大学法人鹿児島大学
Priority date: 2017-04-18
Filing date: 2018-04-12
Publication date: 2018-10-25
Also published as: JP6952365B2; JPWO2018193955A1

Abstract

In the present invention, a body surface movement acquisition unit (11) acquires body surface movement data which includes the timing whereat timing information is generated by a timing information generation unit (10) and which operates as a result of a subject's swallowing action during a period wherein the swallowing action is performed. An internal movement acquisition unit (12) acquires internal movement data of the same subject which includes the timing whereat timing information is generated by the timing information generation unit (10) and operates as a result of the subject's swallowing action during the period wherein the swallowing action is performed. A synchronized data generation unit (13) synchronizes the timing at which the timing information was generated in the body surface movement data and the timing at which the timing information was generated in the internal movement data, and thereby generates synchronized data of the internal movement and the body surface movement during the swallowing action. An analysis unit (14) analyzes the correlation between the body surface movement and the internal movement during the swallowing action on the basis of the synchronized data.

Description

Swallowing function test system using 3D camera

The present invention relates to a swallowing function test system using a 3D camera.

In Japan, the population is aging, and the proportion of elderly people over 65 is expected to exceed 30% of the total population, reaching 38.78 million in 2042. A characteristic seen in the elderly is a decrease in swallowing function (hereinafter referred to as “swallowing function”). Decreased swallowing function causes aspiration and suffocation, as well as aspiration pneumonia. Therefore, diagnosing swallowing function is important for the elderly.

However, in order to diagnose the swallowing function, it is necessary to grasp the movement in the oral cavity and throat. For example, the swallowing function can be invasively performed with a C-arm fluoroscope (VF) or a swallowing endoscope (VE, for home visit). It is common to inspect. On the other hand, a measurement system for diagnosing swallowing function non-invasively from movement outside the body (body surface dynamics) has been disclosed (for example, see Patent Document 1).

JP 2013-31650 A

With the aging of the population, the national medical expenses will reach 50 trillion yen in 2025. Patients and families who wish to receive home medical care because they want to receive reliable medical care and care while ensuring the quality of life. Needs are increasing. Currently, 60% of the citizens want home treatment, and 50% of care managers find it difficult to work with doctors. Dealing with dysphagia is indispensable to guarantee the quality of life at home.

However, the C-arm type fluoroscopic apparatus and the like as described above are expensive in inspection equipment and require specialized techniques to be used. In addition, such an inspection device is invasive, and the inspection place is limited. Moreover, there are many unknown parts in the correlation between the external movement of the body (body surface dynamics) and the swallowing function. In the medical field, the swallowing function may be screened from the movements of the face and mouth, which requires skill in the technique.

The present invention has been made in view of the above circumstances, and provides a swallowing function test system, a swallowing function analysis method, and a program that can test the swallowing function of a subject inexpensively, simply, non-invasively and accurately. The purpose is to provide.

In order to achieve the above object, a swallowing function test system according to the first aspect of the present invention includes:
A timing information generator for generating timing information;
The body surface dynamics acquisition unit that acquires the body surface dynamics data that operates along with the swallowing operation of the subject in the period when the swallowing operation is performed, including the time point when the timing information is generated in the timing information generating unit,
An internal dynamics acquisition unit that acquires internal dynamics data of the same subject that operates along with the swallowing operation in a period during which the swallowing operation is performed, including the time when the timing information is generated in the timing information generation unit;
Synchronous data for generating synchronization data of internal dynamics and body surface dynamics during the swallowing operation by combining the time when timing information is generated with the body surface dynamics data and the time when timing information is generated with the internal dynamics data A generator,
Based on the synchronization data, an analysis unit that analyzes the correlation between the body surface dynamics and internal dynamics of the subject during the swallowing operation;
Is provided.

In this case, the analysis unit
Estimating the state of swallowing function of the subject based on the body surface dynamics data obtained by imaging again the body surface dynamics during the swallowing motion in the same subject, and the synchronization data,
It is good as well.

In addition, the analysis unit
Analyzing the state of the swallowing function of the subject based on items related to the dynamics of a specific part on the body surface during the swallowing operation obtained from the body surface dynamics data,
It is good as well.

The specific part includes a distance between mouth corners,
It is good as well.

The synchronous data generation unit
For each subject, generate the synchronization data,
The analysis unit
Using the synchronization data for each subject, analyze the swallowing function of the subject corresponding to the synchronization data,
It is good as well.

The timing information generating unit generates a sound as the timing information.
It is good as well.

The swallowing function analysis method according to the second aspect of the present invention is:
The body surface dynamics data that operates along with the swallowing motion of the subject in the period during which the swallowing motion is performed, including the time point when the timing information is generated, and at the same time, A dynamic acquisition process for acquiring internal dynamic data of the same subject operating along with the movement;
Synchronous data for generating synchronous data of internal dynamics and body surface dynamics during the swallowing operation by combining timing when timing information is generated with the body dynamics data and timing when timing information is generated with the internal dynamic data Generation process;
An analysis step for analyzing a correlation between body surface dynamics and internal dynamics of the subject during the swallowing motion based on the synchronization data;
including.

The program according to the third aspect of the present invention is:
Computer
A timing information generator for generating timing information;
A body surface dynamics acquisition unit for acquiring body surface dynamics data that operates in accordance with the swallowing motion of the subject in a period in which the swallowing motion is performed, including the time when the timing information is generated in the timing information generator;
An internal dynamics acquisition unit that acquires internal dynamics data of the same subject that operates along with the swallowing operation in a period during which the swallowing operation is performed, including a time point when the timing information is generated in the timing information generation unit;
Synchronous data for generating synchronization data of internal dynamics and body surface dynamics during the swallowing operation by combining the time when timing information is generated with the body surface dynamics data and the time when timing information is generated with the internal dynamics data Generator,
Based on the synchronization data, an analysis unit that analyzes the correlation between body surface dynamics and internal dynamics of the subject during the swallowing operation,
To function as.

According to the present invention, since the synchronization data that matches the timing of the body surface dynamics data and the internal dynamics data of the subject during the swallowing operation is generated, the body surface dynamics and the internal dynamics of the subject during the swallowing operation are generated. Can be analyzed. For this reason, the swallowing function of the subject can be examined inexpensively, simply, noninvasively and accurately from the body surface dynamics.

It is a schematic diagram which shows the whole environment where the swallowing function test | inspection system which concerns on embodiment of this invention is used. It is a figure which shows an example of the upper half of the subject imaged with a three-dimensional shape measuring apparatus. It is a figure which shows an example of the body surface dynamics of the face part of a subject measured with a three-dimensional shape measuring apparatus. It is a block diagram which shows the internal structure of the body surface dynamics acquisition part which comprises a swallowing function test | inspection system. It is a figure which shows an example of body surface dynamics data. It is a figure which shows an example of a fluoroscopic image. It is a figure which shows an example of internal dynamics data. (A) And (B) is a schematic diagram which shows a mode that synchronous data are produced | generated. It is a figure which shows an example of the screen at the time of displaying synchronous data. It is a block diagram which shows the hardware constitutions of a swallowing function test | inspection system. It is a flowchart of the swallowing function analysis method which concerns on embodiment of this invention. It is a timing chart of the procedure which acquires dynamics. It is a specific example (the 1) of internal dynamics data. It is an example (the 1) of the fluctuation pattern of the specific site | part with body surface dynamics data. It is a specific example (the 2) of internal dynamics data. It is an example (the 2) of the fluctuation pattern of the specific site | part with body surface dynamics data. It is a specific example (the 3) of internal dynamics data. It is an example (the 3) of the fluctuation pattern of the specific site | part with body surface dynamics data. It is a specific example (the 4) of internal dynamics data. It is an example (the 4) of the fluctuation pattern of the specific site | part with body surface dynamics data. It is a block diagram of a system for examining a present swallowing function for a plurality of subjects.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the entire environment in which the swallowing function test system 1 according to the present embodiment is used. As shown in FIG. 1, the swallowing function test system 1 is a system for causing a subject P to swallow a sample and testing the swallowing function. The swallowing function test system 1 is communicably connected to various facilities installed in the test room 2. In the examination room 2, a speaker 3, a three-dimensional shape measuring device 4, and a contrast examination device 5 are installed as such facilities.

Speaker 3 generates a sound (buzzer) as timing information. This sound becomes a trigger when performing various operations such as the swallowing operation of the subject P. This sound is also used for generating synchronization data, as will be described later.

The three-dimensional shape measurement apparatus 4 uses an RGB camera and a depth sensor to image the face portion of the subject P and the periphery thereof (see, for example, FIG. 2A), and the captured face portion of the subject P and the vicinity thereof Is measured (for example, lattice data 6 shown in FIG. 2B). The three-dimensional shape measuring device 4 measures the distance between the device of a plurality of feature points (nodes) set on the upper half of the subject P, and thereby the body surface dynamics of the face of the subject P ( Measure skin and surface muscle movement). That is, the three-dimensional shape measuring apparatus 4 is a non-contact type markerless motion capture system.

For example, Kinect (registered trademark) is available as such a three-dimensional shape measuring apparatus 4. Kinect (registered trademark) records the three-dimensional position coordinates of each measurement point in real time every 1/30 seconds. Kinect (registered trademark) is advantageous in that it is small, portable, low-cost, and a software program for calculating a three-dimensional shape is open sourced. The three-dimensional shape measuring apparatus 4 captures three-dimensional images of the object and records surrounding sounds using a multi-array microphone.

The contrast examination (Video Fluorography) apparatus 5 is an X-ray imaging apparatus that captures a fluoroscopic image of the jaw portion of the subject P. As shown in FIG. 5, the imaging direction is the lateral direction of the subject P. The contrast examination apparatus 5 starts imaging the jaw portion of the subject P according to an instruction from the outside, and ends imaging according to the instruction from the outside. From this imaging result, it is possible to observe the internal dynamics of the oral cavity, pharynx, and esophagus that operate with the swallowing operation when the subject P performs the swallowing operation. The contrast inspection apparatus 5 captures a fluoroscopic image of the object and records surrounding sounds.

Referring back to FIG. 1, the swallowing function test system 1 includes a timing information generation unit 10, a body surface dynamics acquisition unit 11, an internal dynamics acquisition unit 12, a synchronization data generation unit 13, and an analysis unit 14.

The timing information generator 10 causes the speaker 3 to generate sound as timing information. In the present embodiment, the sound to be generated is an electronic sound such as a buzzer, but is not limited to this. For example, the sound to be generated may be a human voice.

The body surface dynamics acquisition unit 11 acquires body surface dynamics data related to the swallowing motion of the subject P. The acquired body surface dynamics data includes time points T1 and T2 when the timing information is generated by the timing information generator 10 (see, for example, FIG. 4), and is time-series data including a period during which the swallowing operation is performed. .

More specifically, when the body surface dynamics acquisition unit 11 instructs the three-dimensional shape measuring device 4 to start measurement, the three-dimensional shape measuring device 4 picks up the subject P, records an electronic sound, and measures the three-dimensional shape. To start. Further, when the body surface dynamics acquisition unit 11 instructs the 3D shape measurement device 4 to end the measurement, the 3D shape measurement device 4 ends the imaging of the subject P, the recording of the electronic sound, and the measurement of the 3D shape. . Video data, electronic sound data, and a measurement result of the three-dimensional shape captured by the three-dimensional shape measurement apparatus 4 are transmitted to the body surface dynamics acquisition unit 11.

The body surface dynamics acquisition unit 11 includes a body surface dynamics information generation unit 11A and a storage unit 11B as shown in FIG. The body surface dynamics information generation unit 11A stores the video and electronic sound data received from the three-dimensional shape measurement apparatus 4 in the storage unit 11B. This data is referred to as video and electronic sound data 11C. Furthermore, the body surface dynamics information generation unit 11A generates body surface dynamics data 11D based on the received measurement result of the three-dimensional shape and stores it in the storage unit 11B.

Various data can be included as the body surface dynamics data 11D. For example, as shown in FIG. 2B, when the specific measurement site is set as the inter-angular distance L, the body surface dynamics information generating unit 11A generates time-series data indicating the time change of the inter-angular distance L. And stored in the body surface dynamics data 11D. FIG. 4 shows time-series data (body surface dynamic data 11D) of the inter-oral distance L as body surface dynamics and electronic sound time-series data (video and electronic sound data 11C). In the time series data of the electronic sound, the impulse-like peak indicates the timing (time point T1, T2) when the electronic sound is generated.

Referring back to FIG. 1, the internal kinetic acquisition unit 12 acquires internal kinetic data 12D in the oral cavity, pharynx, and esophagus of the same subject P during the period in which the swallowing operation is performed. As shown in FIG. 6, the internal dynamic data 12 D includes time points T 1 and T 2 when an electronic sound is generated by the timing information generation unit 10, and indicates a temporal change of a fluoroscopic image obtained by moving the jaw portion of the subject P from the side. Time series data. From this data, it is possible to observe the swallowing process from the oral phase to the pharyngeal phase to the esophageal phase. The acquired internal behavior data 12 D is data for a period including time points T 1 and T 2 when an electronic sound is generated in the timing information generation unit 10. The internal dynamic acquisition unit 12 acquires the internal dynamic data 12D and simultaneously records the electronic sound data 12C.

When the internal dynamic acquisition unit 12 instructs the contrast inspection apparatus 5 to start imaging, the contrast inspection apparatus 5 starts imaging and recording of fluoroscopic imaging of the subject P, and the internal dynamic acquisition unit 12 When instructing the end of the measurement of the fluoroscopic image of the face of the examiner P, the contrast inspection device 5 ends the imaging and recording of the fluoroscopic image of the face of the examinee P. The internal dynamic data 12D and the electronic sound data 12C imaged by the contrast inspection apparatus 5 are transmitted to the internal dynamic acquisition unit 12. The internal dynamic data 12D and the electronic sound data 12C are stored in the internal dynamic acquisition unit 12.

Referring back to FIG. 1, the synchronization data generation unit 13 generates synchronization data of internal dynamics and body surface dynamics during the swallowing motion. The synchronization data is performed by combining the time points T1 and T2 when the timing information is generated in the body surface dynamic data 11D and the time points T1 and T2 when the timing information is generated in the internal dynamic data 12D.

Specifically, as shown in FIG. 7 (A), the synchronization data generation unit 13 generates the timing information in the electronic sound data 12C associated with the internal dynamic data 12D and the body surface dynamic data (between the corners of the mouth). Distance L) The video sound associated with 11D and the timing when the timing information in the electronic sound data 11C is generated are matched. Then, as shown in FIG. 7 (B), the synchronization data generation unit 13 sets the data obtained by synthesizing the internal dynamic data 12D and the body surface dynamic data 11D as the synchronous data 7 in a state where both time points T1 and T2 are combined. Generate.

FIG. 8 shows an example of a screen on which body surface dynamics and internal dynamics are simultaneously displayed based on the synchronization data 7. Internal dynamic data 12D is shown on the upper left of the screen, and body surface dynamic data 11D is shown on the right. In addition, time series data of the inter-oral distance L which is a part of the body surface dynamic data 11D is shown at the lower side of the screen.

1, the analysis unit 14 reads the synchronization data 7 from the synchronization data generation unit 13 and analyzes it. Specifically, the analysis unit 14 analyzes the correlation between the body surface dynamics and the internal dynamics during the swallowing operation. The analysis of the correlation is performed, for example, by analyzing the state of the swallowing function of the subject P based on the item regarding the dynamics of a specific part on the body surface during the swallowing operation obtained from the body surface dynamic data 11D. Is called. The specific part includes information regarding the inter-oral distance L. In this case, for example, the distance L between mouth corners at rest, the distance L between mouth angles before the start of swallowing, the amount of displacement of the distance L between mouth corners of the swallowing operation, the swallowing time, and the like can be set as measurement items.

FIG. 9 shows a hardware configuration of the swallowing function test system 1 of FIG. As shown in FIG. 9, the swallowing function test system 1 includes a control unit 31, a main storage unit 32, an external storage unit 33, an operation unit 34, a display unit 35, and a communication unit 36. The main storage unit 32, the external storage unit 33, the operation unit 34, and the display unit 35 are all connected to the control unit 31 through the internal bus 30.

The control unit 31 includes a CPU (Central Processing Unit) and the like. The CPU executes the program 39 stored in the external storage unit 33, thereby realizing each component of the swallowing function test system 1 shown in FIG. The control unit 31 has a timer.

The main storage unit 32 is composed of RAM (Random-Access Memory) or the like. The main storage unit 32 is loaded with a program 39 stored in the external storage unit 33. In addition, the main storage unit 32 is used as a work area (temporary data storage area) of the control unit 31.

The external storage unit 33 includes a non-volatile memory such as a flash memory, a hard disk, a DVD-RAM (Digital Versatile Disc Random-Access Memory), a DVD-RW (Digital Versatile Disc ReWritable). In the external storage unit 33, a program 39 to be executed by the control unit 31 is stored in advance. Further, the external storage unit 33 supplies data used when executing the program 39 to the control unit 31 in accordance with an instruction from the control unit 31, and stores the data supplied from the control unit 31.

The operation unit 34 includes a pointing device such as a keyboard and a mouse, and an interface device that connects the keyboard and the pointing device to the internal bus 30. Information regarding the content operated by the operator is input to the control unit 31 via the operation unit 34.

The display unit 35 includes a CRT (Cathode Ray Tube), an LCD (Liquid Crystal Display), an organic EL (ElectroLuminescence), or the like. When the operator inputs operation information, an operation screen is displayed on the display unit 35.

The communication unit 36 is a communication interface with an external device. For example, the speaker 3, the three-dimensional shape measuring device 4, and the contrast examination device 5 are connected to be communicable via the communication unit 36.

In the configuration of the swallowing function test system 1 shown in FIG. 1 by executing the program 39 of the control unit 31, the timing information generating unit 10, the body surface dynamics acquiring unit 11, the internal dynamics acquiring unit 12, the synchronous data generating unit 13, and The function of the analysis unit 14 is realized by the control unit 31, the main storage unit 32, the external storage unit 33, the operation unit 34, the display unit 35, and the communication unit 36 operating according to the execution of the program 39.

Next, the operation of the swallowing function test system 1 will be described. FIG. 10 shows a flowchart of a process (execution procedure of the program 39) executed by the swallowing function test system 1, that is, a swallowing function analysis method.

As shown in FIG. 10, first, the body surface dynamics acquisition unit 11 includes time points T1 and T2 when electronic sounds are generated, and the body fluctuates with the swallowing motion of the subject P during the swallowing motion. At the same time that the surface dynamic data 11D (video and electronic sound data 11C) is acquired, the internal dynamic acquisition unit 12 changes the internal dynamic data 12D of the subject P that fluctuates with the swallowing operation in the period during which the swallowing operation is performed ( Electronic sound data 12C) is acquired (step S1: dynamic acquisition step).

Here, the dynamic acquisition step is performed according to the procedure shown in FIG. This procedure is performed under the control of the swallowing function test system 1.
1. The subject P is made to wait at the measurement position.
2. Shooting by the three-dimensional shape measuring apparatus 4 is started.
3. VF imaging by the contrast inspection apparatus 5 is started and a timer is started.
4). A sample (for example, water) is taken in by the first electronic sound generated at time T1.
5). The sample is swallowed by the second electronic sound generated at time T2.
6). At the end of swallowing, the subject P raises his hand, and at that point the imaging is terminated and the measurement is terminated. By this step, body surface dynamic data 11D and internal dynamic data 12D are acquired.

Next, the synchronization data generation unit 13 combines the timing (T1, T2) when the electronic sound is generated with the body surface dynamic data 11D and the timing (T1, T2) when the electronic sound is generated with the internal dynamic data 12D, Synchronous data 7 between the internal dynamic data 12D and the body surface dynamic data 11D during the swallowing operation is generated (step S2; synchronous data generating step).

Next, the analysis unit 14 analyzes the correlation between the body surface dynamics and the internal dynamics of the subject P during the swallowing operation based on the synchronization data 7 (step S3; analysis process).

FIG. 12A shows the internal dynamics obtained when a subject P1 swallows 5 ml of water, and FIG. 12B shows the state of fluctuation of the inter-angular distance L as the body surface dynamics at that time. Yes. In FIG. 12B, the time point t1 is a time point immediately after the swallowing instruction, the time point t2 is the time point when the inter-oral distance L is minimized, and the time point t3 is a time point when the water passes through the fourth cervical vertebra and the swallowing is finished. is there. Time t4 is the time when the subject P1 raised his hand. As shown in FIG. 12B, under this condition, the inter-oral distance L contracted immediately after the swallowing instruction, and then returned to the normal length after the swallowing ended while extending.

FIG. 13A shows the internal dynamics acquired when another subject P2 swallows 5 ml of water, and FIG. 13B shows how the inter-oral distance L changes at that time. In FIG. 13B, the time point t1 is a time point immediately after the swallowing instruction, the time point t2 is the time point when the inter-oral distance L is maximum, and the time point t3 is a time point when the water passes through the fourth cervical vertebra and the swallowing is finished. is there. Further, the time point t4 is a time point when the distance L between the mouth corners is minimized, and the time point t5 is a time point when the subject P2 raises his hand. As shown in FIG. 13B, under this condition, the inter-oral distance L was stretched immediately after the swallowing instruction, and then contracted to finish swallowing and then returned to the normal length.

Thus, it was confirmed that when the subject P is different, the variation pattern of the inter-oral distance L accompanying the swallowing motion is also different. This variation pattern was roughly divided into two. This is considered to be mainly because the subject P2 (see FIG. 13A) holding water forward and the subject P1 (see FIG. 12A) holding water backward are separated.

FIG. 14A shows the internal dynamics obtained when another subject P1 swallows 15 ml of water, and FIG. 14B shows how the inter-oral distance L fluctuates at that time. In FIG. 14B, the time point t1 is a time point immediately after the swallowing instruction, the time point t2 is the time point when the interoral distance L is maximum, and the time point t3 is a time point when the water passes through the fourth cervical vertebra and the swallowing is finished. is there. Further, the time point t4 is a time point when the inter-angular distance L is minimized, and the time point t5 is a time point when the subject P1 raises his hand. As shown in FIG. 14B, under this condition, the inter-oral distance L was stretched immediately after the swallowing instruction, then contracted and finished swallowing, and then returned to the normal length.

FIG. 15A shows the internal dynamics acquired when another subject P2 swallows 15 ml of water, and FIG. 15B shows the fluctuation of the inter-oral distance L at that time. In FIG. 15B, the time point t1 is a time point immediately after the swallowing instruction, the time point t2 is the time point when the inter-oral distance L is maximum, and the time point t3 is a time point when the water passes through the fourth cervical vertebra and the swallowing is finished. is there. Further, the time point t4 is a time point when the distance L between the mouth corners is minimized, and the time point t5 is a time point when the subject P2 raises his hand. As shown in FIG. 15B, under this condition, the inter-oral distance L was stretched immediately after the swallowing instruction, then contracted and finished swallowing, and then returned to the normal length.

Thus, it was confirmed that when there are many samples (water) to be held, there is a tendency to hold the samples (water) in the entire oral cavity. Summing up the data so far, the inter-oral distance L during the swallowing operation generally becomes the maximum after a while after the swallowing instruction, and the sample passes through the fourth cervical vertebra while decreasing thereafter, and the swallowing is finished Then, after reaching the minimum, a common point was observed in which the distance gradually returned to the normal distance L between the mouth corners. Therefore, when the body surface dynamics during swallowing do not follow this variation pattern, it can be suspected that some kind of disorder has occurred in the swallowing function of the subject P.

Strictly speaking, however, the variation pattern of the inter-oral distance L varies depending on the subject P. Therefore, in order to evaluate the swallowing function more accurately, the synchronization data generating unit 13 generates the synchronization data 7 for each subject P. It is desirable that the analyzing unit 14 uses the synchronization data 7 for each subject P and analyzes the swallowing function of the subject P based on the synchronization data 7. In FIG. 16, the analysis unit 14 includes a storage unit 14C, and the synchronization data 7A of the subject PA, the synchronization data 7B of the subject PB, and the synchronization data 7C of the subject PC are stored in the storage unit 14C. An example is shown.

As shown in FIG. 16, the analysis unit 14 is based on the body surface dynamics data 11D acquired by imaging the body surface dynamics during the swallowing motion in the subjects PA to PC, and the synchronization data 7A to 7C. The state of the swallowing function of the subjects PA to PC may be estimated. It is assumed that the swallowing function test system 1 is connected to a three-dimensional shape measuring device 4 installed in a home 8 of the subject PA, PB, or PC via a communication network 9. When the body surface dynamics data 11D of the subject PA is acquired by the three-dimensional shape measuring apparatus 4 installed in the home 8 of the subject PA, the data is transferred to the swallowing function test system 1 via the communication network 9. Sent to.

The analysis unit 14 of the swallowing function test system 1 estimates the current swallowing function state of the subject PA based on the body surface dynamics data 11D of the subject PA. For example, when the variation pattern of the inter-oral distance L obtained from the received body surface dynamics data 11D and the variation pattern of the easy-to-mouth distance L stored as the synchronization data 7A become large (for example, when the swallowing time is long or intense If it fluctuates), it is estimated that there is a possibility that a dysphagia has occurred in the subject PA. If such an estimation result is obtained, a more accurate diagnosis can be performed on the subject PA. The same applies to the subjects PB and PC. If such a mechanism is constructed, home medical care can be performed, and the burden on the subject P or the like is remarkably reduced.

As described above in detail, according to the present embodiment, the synchronization data 7 between the body surface dynamics data 11D and the internal dynamics data 12D of the subject P during the swallowing operation is generated. The state of the swallowing function of the subject P can be estimated simply by measuring the body surface dynamics of the subject P. For this reason, the swallowing function of the subject P can be examined inexpensively, simply, noninvasively and accurately.

In the above embodiment, the inter-oral distance L of the subject P is used as a specific part for evaluating the swallowing function, but the present invention is not limited to this. Information on body surface dynamics related to swallowing motion can be used for evaluation of swallowing function. For example, the forehead, eyebrow, nose, chin portion, and front neck of the subject P may be adopted as specific portions and the movement thereof may be measured.

In the above embodiment, sound is used as timing information, but the present invention is not limited to this. Light may be used as timing information. Moreover, you may make it alert | report a timing to the subject P using a vibrator. In these cases, an electrical signal for causing the light source to emit light or driving the vibrator may be recorded as timing information together with body surface dynamics and internal dynamics.

In the above embodiment, the body surface dynamic data 11D and the internal dynamic data 12D are synchronized at the timing of the time points T1 and T2. However, the

data

11D and 12D may be synchronized only at the time point T2.

In the above embodiment, the sample swallowed by the subject P is water, but the present invention is not limited to this. Other beverages may be used.

In addition, the hardware configuration and software configuration of the swallowing function test system 1 are examples, and can be arbitrarily changed and modified.

A central part that performs processing of the swallowing function test system 1 including the control unit 31, the main storage unit 32, the external storage unit 33, the operation unit 34, the display unit 35, the communication unit 36, the internal bus 30, and the like is dedicated. It can be realized using a normal computer system regardless of the system. For example, a computer program for executing the above operation is stored and distributed in a computer-readable recording medium (flexible disk, CD-ROM, DVD-ROM, etc.), and the computer program is installed in the computer. Thus, the swallowing function test system 1 that executes the above-described processing may be configured. The computer program may be stored in a storage device included in a server device on a communication network such as the Internet, and the swallowing function test system 1 may be configured by downloading or the like from a normal computer system.

When the function of the swallowing function test system 1 is realized by sharing an OS (operating system) and an application program, or in cooperation with the OS and the application program, only the application program part is stored in a recording medium or a storage device. May be.

It is also possible to superimpose a computer program on a carrier wave and distribute it via a communication network. For example, a computer program may be posted on a bulletin board (BBS, “Bulletin“ Board System ”) on a communication network, and the computer program distributed via the network. The computer program may be started and executed in the same manner as other application programs under the control of the OS, so that the above-described processing may be executed.

The present invention is capable of various embodiments and modifications without departing from the broad spirit and scope of the present invention. The above-described embodiments are for explaining the present invention and do not limit the scope of the present invention. In other words, the scope of the present invention is shown not by the embodiments but by the claims. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

The present application claims priority based on Japanese Patent Application No. 2017-82001 filed on April 18, 2017, and the specification of Japanese Patent Application No. 2017-82001 is included in this specification. The claims and the entire drawing are incorporated by reference.

The present invention can be applied to the examination of swallowing function. In particular, it can be applied when diagnosing the swallowing function in home medical care.

1 swallowing function test system, 2 test room, 3 speakers, 4 3D shape measuring device, 5 contrast test device, 6 grid data, 7, 7A, 7B, 7C synchronous data, 8 home, 9 communication network, 10

timing information generation

11, 11 body surface dynamics acquisition unit, 11A body surface dynamics information generation unit, 11B storage unit, 11C video and electronic sound data, 11D body surface dynamics data, 12 internal dynamics acquisition unit, 12C electronic sound data, 12D internal dynamics data, 13 synchronization data generation unit, 14 analysis unit, 14C storage unit, 30 internal bus, 31 control unit, 32 main storage unit, 33 external storage unit, 34 operation unit, 35 display unit, 36 communication unit, 39 program, P, P1 , P2, PA, PB, PC

Claims

A timing information generator for generating timing information;
The body surface dynamics acquisition unit that acquires the body surface dynamics data that operates along with the swallowing operation of the subject in the period when the swallowing operation is performed, including the time point when the timing information is generated in the timing information generating unit,
An internal dynamics acquisition unit that acquires internal dynamics data of the same subject that operates along with the swallowing operation in a period during which the swallowing operation is performed, including the time when the timing information is generated in the timing information generation unit;
Synchronous data for generating synchronization data of internal dynamics and body surface dynamics during the swallowing operation by combining the time when timing information is generated with the body surface dynamics data and the time when timing information is generated with the internal dynamics data A generator,
Based on the synchronization data, an analysis unit that analyzes the correlation between the body surface dynamics and internal dynamics of the subject during the swallowing operation;
A swallowing function inspection system.
The analysis unit
Estimating the state of swallowing function of the subject based on the body surface dynamics data obtained by imaging again the body surface dynamics during the swallowing motion in the same subject, and the synchronization data,
The swallowing function test system according to claim 1.
The analysis unit
Analyzing the state of the swallowing function of the subject based on items related to the dynamics of a specific part on the body surface during the swallowing operation obtained from the body surface dynamics data,
The swallowing function test system according to claim 1 or 2.
The specific part includes a distance between mouth corners,
The swallowing function test system according to claim 3.
The synchronous data generation unit
For each subject, generate the synchronization data,
The analysis unit
Using the synchronization data for each subject, analyze the swallowing function of the subject corresponding to the synchronization data,
The swallowing function test system according to any one of claims 1 to 4.
The timing information generating unit generates a sound as the timing information.
The swallowing function test system according to any one of claims 1 to 5.
The body surface dynamics data that operates along with the swallowing motion of the subject in the period during which the swallowing motion is performed, including the time point when the timing information is generated, and at the same time, A dynamic acquisition process for acquiring internal dynamic data of the same subject operating along with the movement;
Synchronous data for generating synchronous data of internal dynamics and body surface dynamics during the swallowing operation by combining timing when timing information is generated with the body dynamics data and timing when timing information is generated with the internal dynamic data Generation process;
An analysis step for analyzing a correlation between body surface dynamics and internal dynamics of the subject during the swallowing motion based on the synchronization data;
A method for analyzing swallowing function.
Computer
A timing information generator for generating timing information;
A body surface dynamics acquisition unit for acquiring body surface dynamics data that operates in accordance with the swallowing motion of the subject in a period in which the swallowing motion is performed, including the time when the timing information is generated in the timing information generator;
An internal dynamics acquisition unit that acquires internal dynamics data of the same subject that operates along with the swallowing operation in a period during which the swallowing operation is performed, including a time point when the timing information is generated in the timing information generation unit;
Synchronous data for generating synchronization data of internal dynamics and body surface dynamics during the swallowing operation by combining the time when timing information is generated with the body surface dynamics data and the time when timing information is generated with the internal dynamics data Generator,
Based on the synchronization data, an analysis unit that analyzes the correlation between body surface dynamics and internal dynamics of the subject during the swallowing operation,
Program to function as.