WO2020100942A1

WO2020100942A1 - Urine quantity measuring instrument, and urine quantity measuring method

Info

Publication number: WO2020100942A1
Application number: PCT/JP2019/044539
Authority: WO
Inventors: 和久山浦; 敬明篠原; 功白崎
Original assignee: 株式会社リリアム大塚
Priority date: 2018-11-14
Filing date: 2019-11-13
Publication date: 2020-05-22
Also published as: TW202031200A; JPWO2020100942A1

Abstract

The objective of the present invention is to provide a urine quantity measuring instrument which is highly portable and which can be handled easily by a patient him or herself, or by a user other than the patient. This urine quantity measuring instrument for measuring a quantity of accumulated urine in the bladder of a subject, by measuring the quantity of accumulated urine at a plurality of positions in an abdominal part in the vicinity of the bladder, is provided with: a probe which has a plurality of channels, and which transmits ultrasonic waves in each of the plurality of channels and receives ultrasonic wave echoes; a measuring unit which calculates a quantity of accumulated urine on the basis of the received ultrasonic wave echoes in each of the plurality of channels of the probe, and measures a channel pattern, which is information relating to the received channels; a maximum value position identifying unit which, on the basis of the quantities of accumulated urine measured by the measuring unit, identifies a combination of the quantity of accumulated urine at a maximum value position, which is the position at which the quantity of accumulated urine reaches a provisional maximum value, and the channel pattern; and a notifying unit which issues a notification for guiding the position of the urine quantity measuring instrument to the maximum value position, on the basis of the quantities of accumulated urine and the channel pattern measured by the measuring unit, and the quantity of accumulated urine and the channel pattern at the maximum value position identified by the maximum value position identifying unit.

Description

Urine volume measuring device and urine volume measuring method

The present invention relates to a urine volume measuring device, and more particularly to a urine volume measuring device for measuring the amount of accumulated urine in the bladder by measurement using ultrasonic waves.

BACKGROUND ART Conventionally, a urine volume measuring device has been known which measures the size of the bladder by transmitting ultrasonic waves to the bladder and receiving ultrasonic echoes, which are reflected waves, to measure the amount of accumulated urine in the bladder. ing. An ultrasonic diagnostic apparatus is generally known as an apparatus for measuring the state of internal organs using ultrasonic waves, and the ultrasonic diagnostic apparatus can also be used as a urine volume measuring device.

It can be said that the ultrasonic diagnostic device can know the state of the bladder in detail because the measurement results are displayed as two-dimensional image data. The ultrasonic diagnostic apparatus can know the detailed state, but requires specialized knowledge and skill in how to view the image data, and is therefore premised on use in a medical institution.

International Publication No. 2018/168363

Also, if people with symptoms that can not feel that urine has accumulated in the bladder due to brain, nerves, or other illness (unwillingness to urinate) can easily use the urine meter at home , It can be said that it can improve the quality of life. Under such circumstances, there is a demand for a urine volume measuring instrument that is highly portable and can be easily handled by the patient himself or a user other than the patient.

From this point of view, Patent Document 1 proposes an ultrasonic measuring device that can perform positioning more easily when measuring data. In this ultrasonic measuring device, the urine accumulation amount can be measured while grasping the angle of the probe by acquiring the one-dimensional information using the ultrasonic A mode.

As a result of intensive studies by the present inventors, when the measurement is performed in the ultrasonic A mode, the measurement position greatly affects the measurement accuracy of the urine volume measuring instrument, so guide the urine volume measuring instrument to the appropriate measurement position. The importance of is found and the present invention has been achieved.

The present invention has been made in view of the conventional problems, and an object of the present invention is to provide a urine volume measuring device that is highly portable and can be easily handled by the patient himself or a user other than the patient.

In order to solve the above problems, the urine volume measuring device described in the embodiment is urine that measures the amount of accumulated urine in the bladder by measuring the amount of accumulated urine at a plurality of positions in the abdomen near the bladder of the subject. A quantity measuring instrument, which has a plurality of channels, emits ultrasonic waves in each of the plurality of channels, and receives ultrasonic echoes; and ultrasonic waves received in each of the plurality of channels of the probe. A measurement unit that calculates a urine storage amount based on the echo and a channel pattern that is the information of the received channel, and a urine storage amount based on the urine storage amount measured by the measurement unit is a position where the temporary maximum value is the maximum. Maximum value position specifying unit that specifies a combination of the urine storage amount and channel pattern at the value position, urine storage amount and channel pattern measured by the measurement unit, and urine storage at the maximum value position specified by the maximum value position specifying unit A urine volume measuring device, comprising: a notification unit that gives a notification for guiding the position of the urine volume measuring device to the maximum value position based on the volume and the channel pattern.

It is a figure which shows the external appearance of the urine volume measuring device of this embodiment. It is a figure which shows the example of a usage state of the urine volume measuring device 1. FIG. 4 is a diagram showing traveling directions A, B, C, and D of ultrasonic waves transmitted from the probe 10. It is a figure which shows the example of a display displayed in an outward scan. It is a figure which shows the example of a display displayed in the measurement of a return path. It is a block diagram of the urine volume measuring device 1 of this embodiment. It is a process flow figure which shows the process in the urine volume measuring device 1 of this embodiment. It is a state transition diagram for explaining a fine adjustment algorithm. It is a state transition diagram for explaining a fine adjustment algorithm. It is a state transition diagram for explaining a fine adjustment algorithm. It is a state transition diagram for explaining a fine adjustment algorithm. It is a state transition diagram for explaining a fine adjustment algorithm. It is a state transition diagram for explaining a fine adjustment algorithm. It is a state transition diagram for explaining a fine adjustment algorithm. It is a state transition diagram for explaining a fine adjustment algorithm. It is a state transition diagram for explaining a fine adjustment algorithm. It is a state transition diagram for explaining a fine adjustment algorithm. It is a figure which shows the example of a level display.

Hereinafter, embodiments of the present invention will be described in detail.

FIG. 1 is a diagram showing an appearance of the urine volume measuring device of the present embodiment, and FIG. 2 is a diagram showing an example of a usage state of the urine volume measuring device 1. As shown in FIG. 1, the urine volume measuring device 1 of the present embodiment is provided with a probe 10 having a plurality of

probe channels

11a, 11b, 11c, 11d at one end of a main body portion 20, and the main body portion 20 further includes A display 30, a button 40, a speaker 50, and a communication I / F (interface) 60 are provided and configured. For the sake of explanation, in this specification, the surface of the main body 20 on which the display 30 is provided is referred to as a “display surface”, and the opposite surface is referred to as a “rear surface”. The urine volume measuring device 1 can perform measurement in the ultrasonic A mode.

As shown in FIG. 2, the urine volume measuring device 1 of the present embodiment allows a user (measurer: the same person as the person being measured or an assistant who performs the measurement) so that the display surface faces the person's face. The main body 20 is gripped, and the probe 10 is vertically pressed from the surface of the body to the pubis portion in a state in which the measurement subject lies on his back (supine position). The accumulated amount of urine is measured by moving the urine volume measuring device 1 back and forth along the midline of the body in the vicinity of the bladder with the probe 10 pressed vertically. In the outward path in which the urine volume measuring device 1 is moved while sliding in the umbilicus direction in the umbilicus direction (Y1 direction in FIG. 2), a position (maximum) at which the urine collection volume is provisionally identified as the maximum value (also referred to as provisional maximum value) (Also called a value position) is scanned. After that, in the return path in which the urine direction is opposite to the umbilicus direction (Y2 direction in FIG. 2) while sliding, the urine volume measuring device 1 is guided to the maximum value position specified in the outward path, and a plurality of urine volume measuring devices are further provided at that position. The maximum value of urine storage is determined by performing measurements once and performing detailed calculations. By doing so, it is possible to accurately determine the maximum value of the accumulated urine volume value by guiding to the maximum value position and then calculating the values measured a plurality of times at the fixed position.

The urine volume measuring device 1 of the present embodiment is intended to specify the correct measurement position and perform the measurement at that position on the assumption that the measurable urine volume varies depending on the measurement position, and should be measured originally. What is the maximum amount of urine collection. Therefore, the urine volume measuring device 1 is moved with respect to the person to be measured, the urine accumulation amount is measured, the position where the measured value becomes the provisional maximum value is specified as the correct measurement position, and the measurement is performed again at the specified position. It can be performed. That is, rather than finding the measurement position while searching for the optimum position, it is possible to perform high-precision measurement by scanning the entire body, identifying the optimum position, and guiding the optimum position. Thereby, in the urine volume measuring device of the present embodiment, it is possible to perform the measurement at the correct measurement position, it is possible to accurately measure the urine volume value without specialized knowledge, and the patient himself or a patient other than The user can handle it easily.

Note that the provisional maximum value may be updated by a detailed calculation of the maximum value of urine collection volume on the return trip.

The probe 10 transmits and receives ultrasonic waves for each of the plurality of

probe channels

11a, 11b, 11c, 11d, and supplies a reception signal corresponding to the received ultrasonic echo to the main body unit 20. That is, each

probe channel

11a, 11b, 11c, 11d transmits an ultrasonic wave, and each

probe channel

11a, 11b, 11c, 11d receives an ultrasonic echo which is a reflected wave. The plurality of

probe channels

11a, 11b, 11c, 11d will be described as the first channel 11a, the second channel 11b, the third channel 11c, and the fourth channel 11d from the navel side.

Here, the bladder is in the pelvis, so it will undergo a characteristic expansion based on its anatomy. The bladder bottom is tightly bound to the tissue of the pelvic floor and its movement is restricted, and the bladder expansion associated with the accumulation of urine spreads mainly in the Y1 direction in FIG. 2 while pushing away the relatively small intestine. It has been confirmed by MRI measurement. In the urine volume measuring device 1 according to the present invention, four

probe channels

11a, 11b, 11c, 11d are arranged at regular intervals along the expansion direction.

FIG. 3 is a diagram showing traveling directions A, B, C and D of ultrasonic waves transmitted from the probe 10. As shown in FIG. 3, in the urine volume measuring device 1 of the present embodiment, the traveling direction of part of the ultrasonic waves transmitted from the probe 10 is inclined. The tilt angle increases as the distance from the display 30 increases. Specifically, the traveling direction A of the ultrasonic wave transmitted from the first channel 11a close to the display 30 is perpendicular to the end surface 10a of the probe 10, but the second channel 11b and the third channel 11c. As shown in FIG. 3, the traveling directions B and C of the ultrasonic waves transmitted from the display device gradually increase in angle with respect to the display surface, and the traveling directions D of the ultrasonic waves transmitted from the fourth channel 11d farthest from the display surface. Has the largest angle with respect to the display surface. The reason the ultrasonic wave is inclined in this way is to accurately capture the wall of the bladder behind the pubis. Thus, the ultrasonic waves are incident perpendicularly to the spherical bottom surface of the bladder, so that the wall of the bladder can be accurately captured.

The display 30 displays the progress of the scan, that is, how much more the scan needs to be performed, and guides the user to the maximum value position on the return path until the scan of the entire image of the bladder on the outward path (outgoing path scan) is completed. For display. The forward scan scans the entire image of the bladder, and as a result, identifies the maximum value position. As the progress status, for example, (first stage) the stage where the end of the bladder is captured, (second stage) ) When the amount of urine collection measured after catching the end of the bladder is increasing, (the third stage) the stage where the maximum value of the urine storage amount is detected, (the fourth stage), the measured urine storage amount is 60% of the maximum value. The progress status can be defined in five stages such as a stage where it is detected that there is a certain amount (the fifth stage), and a stage where it is detected that the measured urine storage amount is 40% of the maximum value. In the third step, the maximum value of the urine storage amount is detected when the maximum value position is slightly passed. That is, the maximum urine storage amount causes the measured value to change from increase to decrease, and when the measured value which is, for example, 80% of the past measured value is detected, it can be determined that the past measured value is the maximum value. The progress status is for notifying the user of the position where the maximum value of the urine storage amount is detected, and the number of stages is not limited to five stages, and the meaning of each stage can be defined as appropriate. The detection of the maximum value of the urine accumulation amount may be corrected, and if corrected, the third stage may be returned to the second stage again. For example, if the measured value changes from an increase to a decrease and 80% of the past measured value is once detected, but the measured value starts to increase again and exceeds the maximum measured value, , Corrections are made.

Here, the display on the display 30 will be described. FIG. 4 is a diagram showing a display example displayed in the forward scan, and FIG. 5 is a diagram showing a display example displayed in the return pass measurement. In FIG. 4, (a) indicates the first stage, (b) indicates the second stage, (c) indicates the third stage, and (d) indicates. It shows that it is the fourth stage, and (e) shows that it is the fifth stage. In FIG. 5, (a) shows that the current measurement position is the maximum value position, (b) shows that the current measurement position is displaced from the maximum value position in the umbilicus direction, and (c) shows the current position. It shows that the measurement position of is shifted from the maximum value position in the pubic direction.

The display 30 can indicate to the user at which stage in the progress of the outward scan by displaying one of five different displays as shown in FIG. 4, for example, on the outward trip. On the return trip, the display 30 displays any one of three different displays, for example, as shown in FIG. 5, so that the user can determine which of the umbilical side and the pubic side the current measurement position deviates. Can be shown. In FIG. 5, whether the measurement position indicated by the arrow deviates to the umbilicus side from the maximum value position (FIG. 5 (b)) or the pubic side from the maximum value position (FIG. 5 (c)). Although only shown, two or more modes are added: a mode in which the position of the arrow is further away from the center than the center in FIG. 5B, and a mode in which the position is further away from the pubic side than in FIG. 5C. The current measurement position may be shown in more detail, for example.

In FIG. 1, a button 40 is a button for inputting to turn on / off the power of the urine volume measuring instrument 1 or to start measurement by the urine volume measuring instrument 1. The speaker 50 gives notification by various kinds of voices.

The communication I / F (interface) 60 is an interface for communicating with a personal computer or a portable terminal as needed, and for example, a USB port or a wireless port can be adopted. Through this communication I / F (interface) 60, the measurement data stored in the second storage means can be transmitted to these devices.

FIG. 6 is a block diagram of the urine volume measuring device 1 of the present embodiment. As shown in FIG. 6, the urine volume measuring device 1 includes a probe 10, a display 30, a button 40, a speaker 50, a communication I / F 60, and a control unit 100 connected to these. ing.

The control unit 100 includes an ultrasonic wave control unit 110, an A / D conversion unit 120, a calculation unit 130, a storage unit 140, a display processing unit 150, a voice processing unit 160, a communication processing unit 170, and input control. And a hand portion 180. The calculation unit 130 includes a measurement unit 131 and a determination unit 135, the measurement unit 131 includes a urine accumulation amount calculation unit 132 and a channel pattern acquisition unit 133, and the determination unit 135 includes a scan determination unit 136. It has a maximum value determination unit 137 and a urine storage level determination unit 138. In the present embodiment, the “scan determination unit 136” combines the urine accumulation amount and the channel pattern at the maximum value position, which is the position where the urine accumulation amount becomes the provisional maximum value based on the urine accumulation amount measured by the measurement unit 131. It executes the function of the maximum value position specifying unit that specifies.

The A / D conversion unit 120, the calculation unit 130, the storage unit 140, the display processing unit 150, the voice processing unit 160, and the communication processing unit 170 can be configured by a CPU. The ultrasonic wave control unit 110 can be composed of an ultrasonic wave control circuit or a CPU.

The ultrasonic control unit 110 controls the probe 10 to emit ultrasonic waves and receive the ultrasonic echoes. The received ultrasonic echo is sent to the calculation unit 130 via the A / D conversion unit 120 for each channel.

Based on the ultrasonic echo received for each channel sent to the calculation unit 130, the measurement unit 131 calculates the urine accumulation amount and specifies which channel was used for detection. The urine accumulation amount calculation unit 132 estimates the depth of the bladder from the received ultrasonic echo, and calculates the urine accumulation amount based on the estimated depth of the bladder. Specifically, in the waveform received on the i-th channel, the peak intensity of the ultrasonic echo from the rear wall is Pi, and the peak-to-peak distance of the ultrasonic echo intensity from the front wall and the rear wall is Di. , EU in the bladder can be calculated based on the following equations (1) and (2).
PD = ΣPi × Di (1)
EU = PD × R (2)

Here, i in Pi and Di means a number given to the plurality of channels 11a to 11d, and is an integer from 1 to 4 here. Also, PD is an average index value obtained by adding the product of the intensity Pi of the ultrasonic echo received on each channel 11a to 11d and the distance Di between peaks for i = 1 to 4, and EU is calculated. The accumulated urine amount, R, represents a coefficient determined in accordance with the individual difference based on the anatomical structure and the posture being measured. Therefore, the average index value PD and the urine accumulation amount EU are calculated each time ultrasonic waves are transmitted and received through the plurality of channels 11a to 11d.

The channel pattern acquisition unit 133 acquires information about which channel pattern the urine accumulation amount calculated by the urine accumulation amount calculation unit 132 is an ultrasonic echo. The channel pattern is information indicating which of the plurality of

probe channels

11a, 11b, 11c, 11d of the probe 10 has received the ultrasonic echo. Specifically, for example, when it is received only on the first channel 11a that is the channel closest to the navel, it is the information that it is the first channel 11a, and the channel closest to the pubis and the channel next to it. It is the information that it is the fourth channel and the third channel when received on the fourth channel and the third channel.

The measurement unit 131 associates the urine accumulation amount calculated for each measurement with the channel pattern when the urine accumulation amount is measured, passes it to the determination unit 135 as measurement data, and stores it in the storage unit 140.

Here, in the urine volume measuring instrument 1 of the present embodiment, the forward scan and the return path are measured by the user moving the urine volume measuring instrument 1, and therefore the urine volume measuring instrument 1 itself controls the measurement position. I can't. Therefore, the scan determination unit 136 determines the position (measurement position) measured by the urine volume measuring device 1 based on the urine accumulation amount measured by the measurement unit 131 and the information (channel pattern) of the channel that received the ultrasonic echo at that time. ) Is determined. Specifically, the scan determination unit 136 temporarily stores, as the measurement data, the measurement data (the urine accumulation amount and the channel pattern) acquired in the outward scan performed while moving the urine amount measuring device 1 in the Y1 direction in FIG. By storing in the unit 140, the measurement data at each position in the Y1 direction is stored. In particular, the scan determination unit 136 stores in the storage unit 140 the measurement data acquired at the position specified as the maximum value position (including the positions before and after the maximum value position). On the return trip, the maximum value determination unit 137 can determine the relative position between the position of the urine volume measuring device 1 and the maximum value position based on the stored measurement data.

The scan determination unit 136 determines at what stage the progress status is in the forward scan and whether the forward scan has been completed. In the outward scan, the progress status is divided into a plurality of stages based on the urine accumulation amount at the maximum value position as shown in FIG. For example, when the urine storage volume that has tended to increase turns to decrease, the position that has the maximum value can be set as the maximum value position, and can be the third stage. However, this may occur at a position where the maximum value is not reached due to the effects of noise, etc., and may start to decrease and then increase again. In that case, return from the third stage to the second stage. There is.

In the forward scan, for example, when the measurement that the urine accumulation amount is 40% of the urine accumulation amount at the detected maximum value position occurs consecutively a predetermined number of times after the maximum value position is detected (that is, described in FIG. 4). In the above example, it is possible to determine that the outward scan is completed when it is determined that the fifth stage has been reached.

When the scan determination unit 136 determines that the progress of the forward scan is changed or the forward scan is completed, the scan processing unit 150 or the voice processing unit 160 displays or notifies the user of the change. To do.

When the maximum value determination unit 137 determines that the change in the relative relationship between the measurement position on the return path and the maximum value position or the measurement on the return path has been completed, the maximum value determination unit 137 notifies the user of that fact by the display processing unit 150 or the voice processing. The unit 160 displays and notifies that effect. Since the measurement position cannot be controlled by the urine volume measuring device 1 itself of the present embodiment, the maximum value position is specified by the urine accumulation amount determined to be the temporary maximum value and the channel pattern associated with it. The maximum value determination unit 137 determines the return path measurement position and the maximum value position based on the measurement data measured by the measurement unit 131 each time in the return path measurement and the maximum value position measurement data stored in the storage unit 140. The change in the relative relationship with can be determined.

The maximum value determination unit 137 calculates the maximum value of the urine accumulation amount from the measurement data of a plurality of times measured at the maximum value position, and specifies the urine accumulation amount. For example, the measurement is performed a plurality of times at the maximum value position, a plurality of measurement values are taken in the vicinity of the maximum value, and the average value is set as the maximum value. It is possible to specify that the maximum value of the stored urine amount satisfying the predetermined criterion is specified as the accurate value of the stored urine amount, and that the measurement of the return path is completed. Judging that the urine storage volume meets the predetermined criteria is, for example, when multiple measurement values are obtained near the maximum value by multiple measurements at the maximum value position, and the accurate value of the urine storage volume is determined. Is.

When the maximum value determination unit 137 determines that the accurate maximum value of the urine storage amount can be measured, it passes the urine storage amount value to the urine storage amount level determination unit 138.

The urine accumulation level determination unit 138 uses the table in the storage unit 140 in which the urine accumulation amount level stored in advance and the maximum urine accumulation amount are associated with each other to determine the maximum value of the urine accumulation amount passed from the maximum value determination unit 137. Determine urine collection level. The urine collection level determination unit 138 causes the display processing unit 150 to display the determined urine collection level on the display 30. The urine collection level determination unit 138 may notify the urine collection level determined by the speaker 50 by the audio processing unit 160. The user can determine whether to urinate or not based on the notified urine storage level.

The storage unit 140 stores the urine storage amount and the channel pattern (measurement data) near the maximum value position measured by the measurement unit 131 in association with each other for each measurement. It also stores a table in which the urine accumulation level and the maximum urine accumulation amount are associated with each other.

The display processing unit 150 generates display content to be displayed based on the result calculated by the calculation unit 130 and displays it on the display 30.

The voice processing unit 160 generates notification content for voice notification based on the result calculated by the calculation unit 130, and notifies the speaker 50 of the content.

The communication processing unit 170 inputs / outputs data for communicating with an external device via a wired or wireless network via the communication I / F 60. For example, the measured urine storage level is stored in a second storage means (not shown) in association with the date and time of the measurement, and the communication processing unit 170 inputs / outputs the stored data via the communication I / F 60. By doing so, it is possible to manage urination by using the measurement data with an application (software) of an external device such as a personal computer or a smartphone. The second storage means may be composed of a flash memory, an EEPROM or the like.

Next, the measurement using the urine volume measuring device 1 of the present embodiment will be described. First, the user holds the main body portion 20 so that the display surface of the urine volume measuring device 1 of the present embodiment faces the navel, and pushes the probe 10 in a vertical direction from the body surface of the pubic portion while lying on the back. Hit When the user presses the button 40, the measurement process is started. In the measurement process, a forward scan is performed when the user moves the urine volume meter 1 in the direction from the pubis to the navel along the midline of the body, and the urine volume meter 1 is moved in the direction opposite to the forward scan. When moving, the return path is measured. By the forward scan, time-series measurement data is acquired and which measurement data corresponds to the maximum value position is specified. In the urine volume measuring device 1 of the present embodiment, the fine adjustment algorithm that enables fine adjustment of the measurement position in the return path measurement allows the user to perform fine adjustment. It makes high measurements easy.

The urine volume measuring instrument 1 of the present embodiment notifies the user that the urine volume measuring instrument 1 is moved in the direction from the pubis to the navel before starting the outward scan. For example, the scan determination unit 136 can notify by the speaker 50 or the display 30.

[Outbound scan]
FIG. 7 is a processing flow chart showing processing in the urine volume measuring device 1 of the present embodiment. When the outward scan is started, the measurement data is acquired by the measurement unit 131 (S1). Specifically, the urine accumulation amount calculation unit 132 calculates the urine accumulation amount, and the channel pattern acquisition unit 133 acquires the channel pattern of the probe 10 used to detect the urine accumulation amount. The urine storage amount and the channel pattern are associated with each other, stored in the storage unit 140, and passed to the determination unit 135.

The outward scan is a scan process for specifying the maximum value position (a combination of the urine volume and the channel pattern at that time), and one of the displays in FIG. 4 is displayed on the display 30 according to the progress status. .. Specifically, FIG. 4A is displayed when the scan starts and the end of the bladder is captured, and then, if the progress progresses smoothly, FIG. 4B, FIG. 4C, and FIG. 4D. , FIG. 4 (e) will be displayed.

The scan determination unit 136 of the determination unit 135 determines whether or not there is a change in the progress status based on which stage of the outward scan the current measurement is (S2). In S2, the scan determination unit 136, for example, the urine accumulation amount measured each time in the measurement unit 131 and the urine accumulation measured in each time (immediately before and a predetermined number of times before) stored in the storage unit 140 each time. The value is compared with the amount to determine which of the above-described first to fifth stages the process is in, and whether the stage has changed.

If the scan determination unit 136 determines that the progress status has changed (S2: Yes), the display processing unit 150 switches the display on the display 30 (S3). Specifically, the display is switched to any of the displays shown in FIGS. After S2 or S3, the scan determination unit 136 further determines whether the outward scan has been completed (S4).

If the scan determination unit 136 determines that there is no change in the progress status (S2: No) and the forward scan is not completed (S4: No), the measurement determination unit 131 returns to the measurement (S1) again.

If the forward scan is completed (S4: Yes), the scan determination unit 136 notifies that the measurement will be switched to the backward scan (S5). The notification to the effect that switching to the return path measurement is performed, for example, by generating an audio announcement such as "switch scan direction" by the audio processing unit 160 and causing the speaker 50 to notify, or displaying the display 30 on the outward scan shown in FIG. The display processing unit 150 generates the display content and displays it on the display 30 so as to switch from the display of 1 to the display of the measurement of the return path shown in FIG.

[Return trip measurement]
The return pass measurement is a process for starting a process near the navel and returning to the maximum value position specified by the forward pass scan, and a process for measuring the maximum value of the urine accumulation amount. In order to return the urine volume measuring device 1 to the maximum value position, one of the displays shown in FIG. 5 is displayed on the display 30 according to the relative relationship between the measurement position and the maximum value position each time. Specifically, when the measurement of the return path is started, the measurement position is near the navel, so that FIG. 5 (b) is displayed. After that, when the measurement position advances in the pubic direction and exactly matches the maximum value position, FIG. 5 (a) is displayed. If it is displayed too much, then FIG. 5 (c) will be displayed.

After S5 in FIG. 7, the measurement unit 131 acquires the measurement data (S6) as in the forward scan, stores the measurement data in the storage unit 140, and passes the measurement data to the determination unit 135.

When the maximum value determination unit 137 of the determination unit 135 receives the measurement data, the maximum value determination unit 137 receives the measurement data, and based on whether the measurement data at each time matches the measurement data at the maximum value position and whether there is a deviation, the measurement position at each time. It is determined whether or not there is a change in the relative relationship between the position and the maximum value position (S7).

If there is a change in the relative relationship (S7: Yes), the maximum value determination unit 137 gives an instruction to execute the process of switching the notification (S8). In the process of switching the notification, the display processing unit 150 generates the display so as to switch the display of the display 30 to the display showing the changed relative relationship in (a) to (c) of FIG. The processing unit 160 executes by switching the voice notification by the speaker 50. For example, when the measurement position at each time changes from the position closer to the umbilicus than the maximum value position to the state corresponding to the maximum value position, the display is switched from FIG. 5 (b) to FIG. 5 (a). At this time, the speaker 50 announces an instruction to stop the movement. According to this instruction, the user can fix the urine volume measuring device 1 in order to perform the measurement at the correct maximum position.

After the change in the relative relationship is determined (S7), and the necessary notification is switched (S8), the maximum value determination unit 137 determines whether or not the measurement position at each time matches the maximum value position. Then, it is determined whether or not the maximum value is calculated (S9). When it is determined that the measurement position at each time coincides with the maximum value position, it is determined that the maximum value is calculated (S9: Yes), and the maximum value is calculated (S10). The calculation of the maximum value is a process in which the measurement by the measuring unit 131 is repeated a plurality of times at the maximum value position and the maximum value of the urine storage amount used for one determination of the urine storage amount level is specified. It can be said that a more accurate urine storage amount can be obtained by specifying the urine storage amount from the measured value obtained by performing the measurement a plurality of times for one urine storage amount.

After calculating the maximum value, the maximum value determination unit 137 determines whether or not the calculation of the maximum value has been completed (the return path measurement has been completed) (S11). For example, as the calculation of the maximum value in the process of S10, a process of taking a plurality of measurement values near the maximum value and setting the average value as the maximum value is performed. In the process of S11, the maximum value is specified as an accurate urine storage amount, and it is determined that the calculation of the maximum value is completed.

When it is determined that the calculation of the maximum value is completed (S11: Yes), the maximum value determination unit 137 passes the identified urine storage amount to the urine storage amount level determination unit 138, and the urine storage amount level determination unit 138 receives it. It is determined which urine accumulation level the urine accumulation corresponds to, and the determined urine accumulation level is displayed on the display 30 (S12).

FIG. 18 is a diagram showing an example of the display of the urine storage level. When the urine collection level determination unit 138 determines the urine collection level, the display processing unit 150 generates a display of the determined urine collection level and causes the display 30 to display a level display such as that shown in FIG. 18 (S12). The level of stored urine can be indicated by, for example, four levels. FIG. 18 shows that the third level, that is, half or more of the allowable bladder capacity, is not the limit.

[Fine adjustment algorithm]
8 to 17 are state transition diagrams for explaining the fine adjustment algorithm in the return path measurement. The fine adjustment algorithm is an algorithm of how to switch the notification in S8 when it is determined that the relative relationship between the current measurement position and the maximum value position has changed in the return path measurement (Yes in S7 of FIG. 7). Is. In each figure, the relationship between the ultrasonic waves transmitted from the urine volume measuring device 1 and the pubis T and the bladder S, and the channel patterns (from the top of the drawing, the first channel, the second channel, the third channel, the 4 channels) and the display state on the display 30 are shown to transition with the movement of the urine volume measuring device 1. The processing of the return path measurement differs depending on the channel pattern at the maximum value position. A channel pattern in which the reaction sensor at the maximum position is any one of the four channels (FIGS. 8 to 11) and the reaction sensor at the maximum position is any two of the four channels Channel patterns (FIGS. 12 to 14), a channel pattern in which the reaction sensor at the maximum value position is any three of the four channels (FIGS. 15 and 16), and four reaction sensors at the maximum value position It is either the entire channel pattern (FIG. 17).

(When only the fourth channel responds at the maximum position)
In this case, the state shown in FIG. 8A is at the maximum value position. In this state, only the ultrasonic wave emitted from the fourth channel of the probe 10 is incident on the bladder, and the channel pattern is in the receiving state only in the fourth channel. This maximum value position is estimated in the outward measurement, and the urine volume measuring instrument 1 is guided so as to match this channel pattern. The display on the display 30 is displayed in the measurement of the return path, and FIG. 5A showing the maximum value position is displayed.

First, when the measurement of the return path is started and the urine volume meter 1 is near the navel, and the bladder has not yet been caught, the state shown in FIG. 8 (b) is obtained.

Second, when the urine volume measuring device 1 is lowered (moved to the pubic side) and only the ultrasonic waves of the probe channel 11d hit the bladder, the state shown in FIG. 8 (a) is obtained. In this state, since the maximum value position and the channel pattern match, the display 30 displays the display shown in FIG. By confirming this display, the user can determine that the current measurement position is the maximum value position, and can stop the movement here.

Originally, the user should stop moving the urine volume measuring device 1 here, but the following description will be given assuming that the user has further moved the urine volume measuring device 1 downward (pubic side). ..

Thirdly, when the urine volume measuring device 1 is moved further from the maximum value position to the pubis side and the ultrasonic wave emitted from the probe channel 11d hits the pubis, and only the ultrasonic wave emitted from the probe channel 11c hits the bladder. The state shown in FIG.

Fourthly, the ultrasonic waves emitted from the

probe channels

11d and 11c by moving the urine volume measuring device 1 further from the maximum position to the pubic side hit the pubis, and only the ultrasonic waves emitted from the probe channel 11b hit the bladder. In this case, the state shown in FIG.

Fifthly, the ultrasonic waves emitted from the

probe channels

11d, 11c and 11b by moving the urine volume measuring device 1 further from the maximum value position to the pubis side hit the pubis and only the ultrasonic waves emitted from the probe channel 11a enter the bladder. When it hits, the state shown in FIG.

Further, a case where the user moves the urine volume measuring device 1 from the fifth state (the state shown in FIG. 8D) to the navel side will be described.

Sixthly, by moving the urine volume measuring device 1 slightly from the fifth state to the umbilicus side, the ultrasonic waves emitted from the

probe channels

11d and 11c hit the pubis, and only the ultrasonic waves emitted from the probe channel 11b hit the bladder. In this case, the state shown in FIG. That is, the same state as the above-mentioned fourth state is obtained.

Seventhly, when the urine volume measuring device 1 is moved a little further to the navel side, the ultrasonic waves emitted from the probe channel 11d hit the pubis, and only the ultrasonic waves emitted from the probe channel 11c hit the bladder. The state shown in c) is obtained. That is, the same state as the third state is obtained.

Eighth, when the urine volume measuring device 1 is moved further to the navel side and only the ultrasonic waves transmitted from the probe channel 11d hit the bladder, the state shown in FIG. 8 (a) is obtained. That is, the same state as that of the second state is obtained. Since this position is the maximum value position, the urine volume measuring device 1 can be stopped there to measure an accurate urine volume value.

The maximum value determination unit 137 guides the user to approach the maximum value position on the outward path on the basis of the combination of the urine accumulation amount and the channel pattern that is the maximum value position. The guidance can be performed by a notification on the speaker 50 or the display 30.

In the case of FIG. 8B, since the measurement position of the urine volume measuring device 1 is displaced to the umbilicus side from the maximum value position, FIG. 5B is displayed on the display 30 to guide the pubic side. The Rukoto.

In the case of FIGS. 8C, 8D, and 8E, since the measurement position of the urine volume measuring device 1 is deviated to the pubic side from the maximum value position, the display 30 is displayed on the display 30 to guide it to the umbilicus side. FIG. 5C will be displayed.

(When only the third channel responds at the maximum position)
In this case, the state shown in FIG. 9A is at the maximum value position. In this state, only the ultrasonic wave transmitted from the third channel of the probe 10 is incident on the bladder, and only the third channel of the channel pattern is in the receiving state. As for the display on the display 30, FIG. 5A showing that it is at the maximum value position is displayed.

When the channel pattern at the maximum value position is the channel pattern shown in FIG. 9 (a), the return path measurement starts from near the navel and is in the state shown in FIG. 9 (b). 9A and 9B. When approaching the pubic side, the state shown in FIG. 9C is obtained, and when the measurement position coincides with the maximum value position, the state shown in FIG. 9A is obtained.

Once the maximum value position is reached and the channel pattern is in the state shown in FIG. 9 (a), when the urine volume measuring device 1 is brought closer to the pubic side, the state shown in FIG. 9 (d) is obtained. The state shown in FIG. 9E is obtained. In the case of the state shown in FIG. 9D and FIG. 9E, the maximum value determination unit 137 can notify the user to move the urine volume measuring device 1 to the umbilicus side.

In the case of FIGS. 9B and 9C, since the measurement position of the urine volume measuring device 1 is displaced to the umbilicus side from the maximum value position, FIG. ) Will be displayed.

In the case of FIGS. 9D and 9E, since the measurement position of the urine volume measuring device 1 is deviated to the pubic side from the maximum value position, FIG. ) Will be displayed.

(When only the second channel responds at the maximum position)
In this case, the state shown in FIG. 10A is at the maximum value position. In this state, only the ultrasonic waves emitted from the second channel of the probe 10 are incident on the bladder, and the channel pattern is in the receiving state only in the second channel. As for the display on the display 30, FIG. 5A showing that it is at the maximum value position is displayed.

When the channel pattern at the maximum value position is the channel pattern shown in FIG. 10 (a), the return path measurement starts from near the navel and is in the state shown in FIG. 10 (b). When approaching the pubic side, the state shown in FIG. 10 (c) is reached, then the state shown in FIG. 10 (d) is reached, and when the measurement position matches the maximum value position, the state shown in FIG. Become.

Once the maximum value position is reached and the channel pattern is in the state shown in FIG. 10 (a), when the urine volume measuring device 1 is brought closer to the pubic side, the state shown in FIG. 10 (e) is obtained. The state shown in FIG. In the case of the states shown in FIGS. 10D and 10E, the maximum value determination unit 137 can notify the user to move the urine volume measuring device 1 to the umbilicus side.

In the case of FIGS. 10B, 10C, and 10D, since the measurement position of the urine volume measuring device 1 is displaced to the umbilicus side from the maximum value position, the display 30 is displayed on the display 30 to guide it to the pubic side. FIG. 5B will be displayed.

In the case of FIGS. 10 (e) and 10 (f), since the measurement position of the urine volume measuring device 1 is displaced to the pubic side from the maximum value position, FIG. ) Will be displayed.

(When only the first channel responds at the maximum position)
In this case, the state shown in FIG. 11A is at the maximum value position. In this state, only the ultrasonic waves emitted from the first channel of the probe 10 are incident on the bladder, and the channel pattern is in the receiving state only in the first channel. As for the display on the display 30, FIG. 5A showing that it is at the maximum value position is displayed.

When the channel pattern at the maximum value position is the channel pattern shown in FIG. 11 (a), the return path measurement starts from near the navel and is in the state shown in FIG. 11 (b). When approaching the pubic side, the state shown in FIG. 11 (c) is reached, and then the state shown in FIG. 11 (d) is reached. When the measurement position matches the maximum value position, the state shown in FIG. 11 (a) is obtained. Become.

Once the maximum value position is reached and the channel pattern is in the state shown in FIG. 11 (a), when the urine volume measuring device 1 is brought closer to the pubic side, the state shown in FIG. 11 (e) is obtained. In the case of the state shown in FIG. 11E, the maximum value determination unit 137 can notify the user to move the urine volume measuring device 1 to the navel side.

In the case of FIGS. 11B, 11C, and 11D, since the measurement position of the urine volume measuring device 1 is deviated to the umbilicus side from the maximum value position, the display 30 is displayed on the display 30 to guide it to the pubic side. FIG. 5B will be displayed.

In the case of FIG. 11E, the measurement position of the urine volume measuring device 1 is displaced to the pubic side from the maximum value position, so that the display 30 displays FIG. 5C to guide it to the umbilicus side. The Rukoto.

(When the fourth channel and the third channel react at the maximum position)
In this case, the state shown in FIG. 12A is at the maximum value position. In this state, only the ultrasonic waves transmitted from the third channel and the fourth channel of the probe 10 are incident on the bladder, and the channel pattern is in the receiving state only in the third channel and the fourth channel. As for the display on the display 30, FIG. 5A showing that it is at the maximum value position is displayed.

When the channel pattern at the maximum value position is the channel pattern shown in FIG. 12 (a), the return path measurement starts from near the navel and is in the state shown in FIG. 12 (b). When approaching the pubic side, the state shown in FIG. 12C is obtained, and when the measurement position matches the maximum value position, the state shown in FIG. 12A is obtained.

Once the maximum value position is reached and the channel pattern is in the state shown in FIG. 12 (a), when the urine volume measuring instrument 1 is brought closer to the pubic side, the state shown in FIG. 12 (d) is obtained. After that, the state shown in FIG. In the state shown in FIG. 12D and the state shown in FIG. 12E, the maximum value determination unit 137 may notify the user to move the urine volume measuring device 1 to the umbilicus side. it can.

In the case of FIGS. 12B and 12C, since the measurement position of the urine volume measuring device 1 is deviated to the umbilicus side from the maximum value position, FIG. ) Will be displayed.

In the case of FIGS. 12D and 12E, since the measurement position of the urine volume measuring device 1 is deviated to the pubic side from the maximum value position, FIG. ) Will be displayed.

(When the third channel and the second channel react at the maximum position)
In this case, the state shown in FIG. 13A is at the maximum value position. In this state, only the ultrasonic waves emitted from the second channel and the third channel of the probe 10 are incident on the bladder, and the channel pattern is in the receiving state only in the second channel and the third channel. As for the display on the display 30, FIG. 5A showing that it is at the maximum value position is displayed.

When the channel pattern at the maximum value position is the channel pattern shown in FIG. 13 (a), the return path measurement starts from the vicinity of the navel and is in the state shown in FIG. 13 (b). When approaching the pubic side, the state shown in FIG. 13C is obtained, and when the measurement position matches the maximum value position, the state shown in FIG. 13A is obtained.

Once the maximum value position is reached and the channel pattern is in the state shown in FIG. 13 (a), when the urine volume measuring device 1 is brought closer to the pubic side, the state shown in FIG. 13 (d) is obtained. After that, the state shown in FIG. In the case of the state shown in FIG. 13D and the state shown in FIG. 13E, the maximum value determination unit 137 may notify the user to move the urine volume measuring device 1 to the umbilicus side. it can.

In the case of FIGS. 13B and 13C, since the measurement position of the urine volume measuring device 1 is displaced to the navel side from the maximum value position, the display 30 shown in FIG. ) Will be displayed.

In the case of FIGS. 13D and 13E, since the measurement position of the urine volume measuring device 1 is displaced to the pubic side from the maximum value position, the display 30 is shown in FIG. ) Will be displayed.

(When the second channel and the first channel react at the maximum position)
In this case, the state shown in FIG. 14A is at the maximum value position. In this state, only the ultrasonic waves emitted from the first channel and the second channel of the probe 10 are incident on the bladder, and the channel pattern is in the receiving state only in the first channel and the second channel. As for the display on the display 30, FIG. 5A showing that it is at the maximum value position is displayed.

When the channel pattern at the maximum value position is the channel pattern shown in FIG. 14 (a), the return path measurement starts from near the navel and is in the state shown in FIG. 14 (b). When approaching the pubic side, the state shown in FIG. 14 (c) is reached, and then the state shown in FIG. 14 (d) is reached. When the measurement position coincides with the maximum value position, the state shown in FIG. 14 (a) is obtained. Become.

Once the maximum value position has been reached and the channel pattern has changed to the state shown in FIG. 14 (a), when the urine volume measuring device 1 is brought closer to the pubic side, the state shown in FIG. 14 (e) is obtained. After that, the state shown in FIG. In the state shown in FIG. 14E and the state shown in FIG. 14F, the maximum value determination unit 137 may notify the user to move the urine volume measuring device 1 to the navel side. it can.

In the case of FIGS. 14B, 14C, and 14D, since the measurement position of the urine volume measuring device 1 is deviated to the umbilicus side from the maximum value position, the display 30 is displayed on the display 30 to guide it to the pubic side. FIG. 5B will be displayed.

In the case of FIGS. 14E and 14F, since the measurement position of the urine volume measuring device 1 is displaced from the maximum position to the pubic side, the display 30 shown in FIG. ) Will be displayed.

(When the fourth channel, the third channel, and the second channel react at the maximum value position)
In this case, the state shown in FIG. 15A is at the maximum value position. In this state, only the ultrasonic waves emitted from the second channel, the third channel, and the fourth channel of the probe 10 are incident on the bladder, and the channel pattern has the second channel, the third channel, and the fourth channel. Only the channel is in receive state. As for the display on the display 30, FIG. 5A showing that it is at the maximum value position is displayed.

When the channel pattern at the maximum value position is the channel pattern shown in FIG. 15 (a), the return path measurement starts from near the navel and is in the state shown in FIG. 15 (b). When it approaches the pubic side, the state shown in FIG. 15C is obtained, and when the measurement position matches the maximum value position, the state shown in FIG. 15A is obtained.

Once the maximum value position is reached and the channel pattern is in the state shown in FIG. 15 (a), when the urine volume measuring device 1 is brought closer to the pubis side, the state shown in FIG. 15 (d) is obtained. After the state shown in 15 (e), the state shown in FIG. 15 (f) is obtained. When the state shown in FIG. 15 (d), FIG. 15 (e) or the state shown in FIG. 15 (f) is reached, the maximum value determination unit 137 moves the urine volume measuring device 1 to the navel side, The user can be notified.

In the case of FIGS. 15B and 15C, since the measurement position of the urine volume measuring device 1 is displaced to the navel side from the maximum value position, the display 30 is shown in FIG. ) Will be displayed.

In the case of FIGS. 15D, 15E, and 15F, since the measurement position of the urine volume measuring device 1 is displaced to the pubic side from the maximum value position, the display 30 is displayed to guide it to the umbilicus side. FIG. 5C will be displayed.

(When the third channel, the second channel, and the first channel react at the maximum value position)
In this case, the state shown in FIG. 16A is at the maximum value position. In this state, only the ultrasonic waves emitted from the first channel, the second channel and the third channel of the probe 10 are incident on the bladder, and the channel pattern has the first channel, the second channel and the third channel. Only the channel is in receive state. As for the display on the display 30, FIG. 5A showing that it is at the maximum value position is displayed.

When the channel pattern at the maximum value position is the channel pattern shown in FIG. 16 (a), the return path measurement starts from near the navel and is in the state shown in FIG. 16 (b). When approaching the pubic side, the state shown in FIG. 16 (c) is followed by the state shown in FIG. 16 (d), and when the measurement position matches the maximum value position, the state shown in FIG. 16 (a) is obtained. Become.

Once the maximum value position is reached and the channel pattern is in the state shown in FIG. 16 (a), when the urine volume measuring device 1 is brought closer to the pubic side, the state shown in FIG. 16 (e) is obtained. After that, the state becomes as shown in FIG. In the case of the state shown in FIG. 16E and the state shown in FIG. 16F, the maximum value determination unit 137 may notify the user to move the urine volume measuring device 1 to the navel side. it can.

In the case of FIGS. 16B, 16C, and 16D, since the measurement position of the urine volume measuring device 1 is deviated to the umbilicus side from the maximum value position, the display 30 is displayed on the display 30 to guide it to the pubic side. FIG. 5B will be displayed.

In the case of FIGS. 16 (e) and 16 (f), since the measurement position of the urine volume measuring device 1 is displaced to the pubic side from the maximum value position, FIG. ) Will be displayed.

(When all channels respond at the maximum position)
In this case, the state shown in FIG. 17A is at the maximum value position. In this state, the ultrasonic waves emitted from all the first to fourth channels of the probe 10 are incident on the bladder, and the channel pattern has all the first to fourth channels in the receiving state. As for the display on the display 30, FIG. 5A showing that it is at the maximum value position is displayed.

When the channel pattern at the maximum value position is the channel pattern shown in FIG. 17 (a), the return path measurement starts from near the navel and is in the state shown in FIG. 17 (b). When approaching the pubic side, the state shown in FIG. 17 (c) is reached, and then the state shown in FIG. 17 (d) is reached. When the measurement position coincides with the maximum value position, the state shown in FIG. 17 (a) is obtained. Become.

Once the maximum value position is reached and the channel pattern is in the state shown in FIG. 17 (a), when the urine volume measuring device 1 is brought closer to the pubic side, the state shown in FIG. 17 (e) is obtained. After the state shown in 17 (f) is reached, the state shown in FIG. 17 (g) is obtained. When the state shown in FIG. 17 (e), FIG. 17 (f) or the state shown in FIG. 17 (g) is reached, the maximum value determination unit 137 moves the urine volume measuring device 1 to the umbilicus side. The user can be notified.

In the case of FIGS. 17B, 17C, and 17D, since the measurement position of the urine volume measuring device 1 is displaced to the umbilicus side from the maximum value position, the display 30 is displayed on the display 30 to guide it to the pubic side. FIG. 5B will be displayed.

17 (e), (f), and (g), since the measurement position of the urine volume measuring device 1 is displaced to the pubis side from the maximum value position, the display 30 is displayed on the display 30 to guide it to the umbilicus side. FIG. 5C will be displayed.

In the above embodiment, the maximum value position is not updated when the forward scan is determined, but in the measurement of the accurate value of the maximum value in the return scan, when it is determined that the maximum value position of the forward scan is not accurate, The maximum value position may be updated.

In the above embodiments, the case where the plurality of channels of the probe is four has been described as an example, but the number of channels is not limited to four.

1 Urine Volume Measuring Device 10

Probes

11a, 11b, 11c, 11d Probe Channel 20 Main Body 30 Display 40 Button 50 Speaker 60 Communication I / F (Interface)
100 control unit 110 ultrasonic control unit 120 A / D conversion unit 130 arithmetic unit 131 measurement unit 132 urine storage amount calculation unit 133 channel pattern acquisition unit 135 determination unit 136 scan determination unit 137 maximum value determination unit 138 urine storage amount level determination unit 140 storage Unit 150 Display processing unit 160 Voice processing unit 170 Communication processing unit

Claims

A urine volume measuring device for measuring the urine accumulation amount in the bladder by measuring the urine accumulation amount at a plurality of positions on the abdomen near the bladder of the subject,
A probe having a plurality of channels, which transmits ultrasonic waves in each of the plurality of channels and receives ultrasonic echoes;
A measuring unit that calculates a urine accumulation amount based on ultrasonic echoes received in each of the plurality of channels of the probe and measures a channel pattern that is information of the received channel,
A maximum value position specifying unit that specifies a combination of the urine accumulation amount and the channel pattern at the maximum value position, which is the position where the urine accumulation amount is the temporary maximum value based on the urine accumulation amount measured in the measuring unit,
Based on the urine volume and channel pattern measured in the measuring unit, and the urine volume and channel pattern in the maximum value position specified in the maximum value position specifying unit, the position of the urine volume measuring device is the maximum value position A urine volume measuring device, comprising: a notification unit that gives a notification for inducing the following.
The urine volume measuring device according to claim 1, wherein a plurality of channels of the probe are arranged in a line.
The urine volume measuring device according to claim 1 or 2, wherein the received channel information includes information indicating which channel has received the ultrasonic echo in the channel arrangement.
It is further provided with a calculation unit that calculates the maximum value of the urine storage amount by using a plurality of values of the urine storage amount obtained by measuring the urine storage amount by the measurement unit a plurality of times at the maximum value position. The urine volume measuring device according to any one of Items 1 to 3.
Urine by a urine meter that measures the amount of accumulated urine in the bladder by transmitting ultrasonic waves in each of multiple channels of the probe and receiving ultrasonic echoes at multiple positions on the abdomen near the bladder of the measurement subject. A quantity measurement method,
A first notifying step of notifying that the urine volume measuring device is moved from the pubis to the navel in the abdomen near the bladder of the measurement subject;
When moving the urine volume measuring device, a maximum value position specifying step of specifying the maximum value position,
When the maximum value position is specified, a second notifying step of notifying that the urine volume measuring device is moved from the navel to the pubis in the abdomen near the bladder of the measurement subject,
A third notification step of making a notification to guide to the specified maximum value position, the urine volume measuring method.
The maximum value position specifying step specifies the maximum value position by a urine storage amount and a channel pattern which is information of a channel that has received the ultrasonic echo, and the urine storage amount and the channel corresponding to the specified maximum value position. The method for measuring urine volume according to claim 5, further comprising storing a pattern.
The urine volume measuring method according to claim 6, wherein the third notifying step includes guiding a urine volume measuring device to the maximum value position based on the stored urine volume and the channel pattern. .
At the maximum value position guided according to the notification of the third notification step, the urine volume measuring device uses a plurality of urine storage volume values obtained by measuring the urine storage volume a plurality of times to determine the urine storage volume. The urine volume measuring method according to any one of claims 5 to 7, further comprising a calculation step of calculating a maximum value.