WO2018168363A1

WO2018168363A1 - Ultrasonic measuring device and ultrasonic measuring method using ultrasonic measuring device

Info

Publication number: WO2018168363A1
Application number: PCT/JP2018/006196
Authority: WO
Inventors: 中嶋健; 笹谷信哉
Original assignee: 株式会社リリアム大塚
Priority date: 2017-03-17
Filing date: 2018-02-21
Publication date: 2018-09-20
Also published as: JP6820453B2; TW201840294A; JPWO2018168363A1

Abstract

[Problem] To provide an ultrasonic measuring device that enables simpler positioning and an ultrasonic measuring method using the ultrasonic measuring device. [Solution] A measuring device that calculates size data relating to the size of an organ by placing an ultrasonic probe 10 against a predetermined position on the body surface of an individual to be measured, rotating the ultrasonic probe 10 about an axis that passes through the predetermined position, and while doing so, transmitting and receiving ultrasonic waves and reflected waves at a plurality of positions circumferentially inclined relative to the axis. The measuring device is characterized by including: an angle sensor unit 24 that measures the angle of the ultrasonic probe 10 relative to the axis; a storage unit 25 that stores the size data as organ-related data associated with the angle measured by the angle sensor unit 24; and an error determination unit 26c that determines an error of the predetermined position on the basis of the organ related data.

Description

Ultrasonic measuring device and ultrasonic measuring method using ultrasonic measuring device

The present invention relates to an ultrasonic measurement device that measures data related to the size of an organ using ultrasonic waves and an ultrasonic measurement method using the ultrasonic measurement device.

Conventionally, an ultrasonic wave is transmitted to an organ such as a bladder or gallbladder, and a reflected wave is received. Based on the reflected wave, a size as data related to the size of the organ is obtained by an ultrasonic A mode. Ultrasonic measuring devices that measure data are known.
By the way, the size data measured by this kind of ultrasonic measuring instrument reacts sensitively to the contact position and angle of the ultrasonic probe, so in order to measure the size data more accurately, the ultrasonic probe Must be positioned at a position and angle suitable for the measurement of size data. As an example, Patent Document 1 discloses a measurement mode for measuring the amount of urine stored in a state of being mounted on the abdomen, and a positioning mode for measuring the amount of urine stored in order to determine a position suitable for mounting the ultrasonic probe in the measurement mode. An ultrasonic urinometer is disclosed. At this time, the measurement of the urine accumulation amount in the positioning mode is performed at a temporary measurement position as a position where the ultrasonic probe is temporarily mounted for the purpose of a position where the urine accumulation amount can be measured with high accuracy.

This positioning mode is a mode for determining a position suitable for wearing the ultrasonic probe based on the amount of urine collected measured at a plurality of temporary measurement positions. (Hereinafter, referred to as a person to be measured). In addition, since this positioning mode is a mode for transmitting the positioning index value obtained based on these urine accumulation amounts to the measurement subject or the like, the position suitable for mounting the ultrasonic probe is the positioning index value. Based on the selection by the person to be measured. Therefore, the positioning of the ultrasonic urine volume measuring device disclosed in Patent Document 1 leaves the determination of the temporary measurement position and the selection of the mounting position of the ultrasonic probe to the measurement subject and the like. Was necessary.

International Publication No. 2016/030959

In view of the above, the technical problem of the present invention is to provide an ultrasonic measuring device and an ultrasonic measuring device that can be positioned more easily when measuring data related to the size of an organ in the ultrasonic A mode. It is to provide an ultrasonic measurement method using the.

In order to solve the above-described problems, an ultrasonic measuring instrument according to the present invention includes an ultrasonic probe having an ultrasonic element that transmits ultrasonic waves toward an organ of a subject, and ultrasonic transmission by the ultrasonic element. Ultrasound measurement comprising: an ultrasonic control unit for controlling; and a calculation unit for calculating size data related to the size of the organ by an ultrasonic A mode based on a reflected wave from the organ of the measurement subject In the measuring instrument, the ultrasonic measuring instrument abuts the ultrasonic probe on a predetermined position on the body surface of the measurement subject, and rotates the ultrasonic probe with an axis passing through the predetermined position as a rotation axis. It is a measuring instrument that calculates the size data by transmitting and receiving ultrasonic waves and their reflected waves at a plurality of positions inclined in the circumferential direction with respect to the axis, and measures the angle of the ultrasonic probe with respect to the axis Angle Sen A storage unit that stores the size data as organ-related data associated with the angle measured by the angle sensor unit, and an error determination unit that determines an error in the predetermined position based on the organ-related data. , Provided.

As a preferred specific example of this ultrasonic measuring instrument, there is one in which the organ is a urinary bladder and the size data is an amount of accumulated urine in the urinary bladder.
The ultrasonic probe preferably includes a plurality of ultrasonic elements arranged in a line.
Furthermore, it is preferable that the error determination unit includes a direction calculation unit that calculates a direction of the error based on the angle when an error at the predetermined position is equal to or greater than a predetermined threshold.
Furthermore, it is preferable that the error determination unit includes a distance calculation unit that calculates a distance of the error based on the angle when an error at the predetermined position is equal to or greater than a predetermined threshold.
The ultrasonic measuring device further includes a one-round determination unit that determines, based on the angle, whether or not the ultrasonic probe rotates at least one round on the predetermined position by rotating about the axis. Further, it is preferable to have.
The ultrasonic measuring device may have an inclination rotation mechanism that rotates the ultrasonic probe while inclining in the circumferential direction with the axis as a rotation axis.
The ultrasonic measuring instrument according to the present invention includes a first surface that transmits ultrasonic waves from an ultrasonic element, a second surface that is erected from the first surface and has a curved surface portion for grip, and the second surface. And a third surface facing the surface, and a display unit for displaying an ultrasonic measurement result on the third surface.
In this case, an operation button for operating the ultrasonic measuring device may be provided on the third surface.
Moreover, it is preferable that the said display part is arrange | positioned in the position which avoided the position facing the formation position of the said curved surface part.
Furthermore, it is preferable that the operation button is disposed at a position facing the formation position of the curved surface portion, and the display section is disposed at a position farther from the first surface than the operation button.
And the speaker may be formed in the 4th surface facing the said 1st surface.

Further, an ultrasonic measurement method using the ultrasonic measuring instrument according to the present invention includes an ultrasonic probe including an ultrasonic element that transmits ultrasonic waves toward the measurement subject's bladder, and ultrasonic waves generated by the ultrasonic element. An ultrasonic measuring device comprising: an ultrasonic control unit that controls transmission; and a calculation unit that calculates an amount of accumulated urine in the bladder by an ultrasonic A mode based on a reflected wave from the bladder of the subject. In the ultrasonic measurement method used, the ultrasonic measuring device is brought into contact with a predetermined position on the body surface of the person to be measured, and the ultrasonic probe is rotated about the axis of the predetermined position with respect to the axis. A first step of measuring an angle of the ultrasonic probe with respect to the axis with an angle sensor at a plurality of positions inclined in the circumferential direction and measuring a urine accumulation amount by receiving the reflected wave; and the first step Angle and urine storage measured in A second step of storing the organ-related data associated bets in the storage unit, based on the organ-related data, and having a third step of determining an error of the predetermined position.

Here, the first step measures the angle of the ultrasonic probe at the position along the axis of the predetermined position with the angle sensor, and receives the reflected wave to determine the amount of accumulated urine. The third step includes organ-related data relating to the urine accumulation amount at a position along the axis, and organ-related data relating to the maximum urine accumulation amount among the urine accumulation amounts calculated at positions inclined with respect to the axis. Preferably, the method includes a step of determining an error of the predetermined position based on the above.
In this case, the ultrasonic probe includes a plurality of ultrasonic elements arranged in a line, and in the first step, the ultrasonic elements are directed from the subject's foot side to the face side. The third step includes a step of measuring the angle of the ultrasonic probe and the amount of accumulated urine in contact with the predetermined position, and the third step is a foot-side ultrasonic element located closest to the foot among the plurality of ultrasonic elements. It is preferable to include a step of determining the presence or absence of the reflected wave received at the step.
In addition, the third step includes a step of determining whether or not the error at the predetermined position is equal to or greater than a predetermined threshold value. In the third step, it is determined that the error at the predetermined position is equal to or greater than a predetermined threshold value. In some cases, it is preferable to further include a fourth step of notifying a direction in which the ultrasonic measuring instrument should move based on an angle related to the maximum urine accumulation amount.
Furthermore, the fourth step is based on an angle associated with the urine accumulation amount when the organ-related data includes a urine accumulation amount measured without receiving a reflected wave by the foot side ultrasonic element. It is preferable to include a step of notifying the direction in which the ultrasonic measuring device should move.
Furthermore, the first step includes a step of measuring an angle of the ultrasonic probe 10 and a urine accumulation amount while rotating the ultrasonic probe at least once with the axis of the predetermined position as a rotation axis, and the third step Includes removing a specific urine accumulation amount as noise from the urine accumulation amount stored in the storage unit, and determining an error of the predetermined position based on the organ-related data from which the noise has been removed. desirable.
The ultrasonic measuring instrument has an inclination rotating mechanism that rotates the ultrasonic measuring instrument while tilting it in the circumferential direction about the axis as a rotation axis, and the first step includes the ultrasonic probe by the tilt rotating mechanism. The method may include a step of calculating the urine accumulation amount by receiving the reflected wave while rotating in a state inclined with respect to the axis.

According to the present invention, the ultrasonic wave and its reflected wave are transmitted and received at a plurality of positions inclined in the circumferential direction with respect to the axis passing through the body surface while rotating the ultrasonic probe with the axis passing through the body surface as the rotation axis. Based on this reflected wave, size data relating to the size of the organ is calculated by the ultrasonic A mode. Then, an error at a predetermined position is determined based on the organ-related data in which this size data is associated with the angle measured by the angle sensor unit. Therefore, the error at the predetermined position can be easily determined by a simple operation of rotating the ultrasonic probe in contact with the body surface while inclining.

It is explanatory drawing which shows the state which made the ultrasonic measuring device contact | abut perpendicularly with respect to the lower abdomen surface. It is a principal part enlarged view of FIG. It is explanatory drawing which shows the state which inclined the ultrasonic measuring device with respect to the lower abdomen surface, and was rotated in the circumferential direction. It is a principal part enlarged view of FIG. It is the schematic which shows the arrangement | sequence of an ultrasonic element. It is explanatory drawing which shows the state which is measuring the amount of urine storage, making an ultrasonic measuring device contact | abut perpendicularly with respect to the lower abdominal surface. It is explanatory drawing which shows the state which is measuring the amount of urine storage, inclining an ultrasonic measuring device in the circumferential direction with respect to the lower abdominal surface. It is a schematic block diagram of an ultrasonic measuring device. It is the schematic of the waveform of the reflected wave received with an ultrasonic element. It is a flowchart explaining the 1st ultrasonic measurement method. It is a graph which shows the relationship between the angle of the circumferential direction, and the measurement timing of the calculated urine storage amount. It is a flowchart explaining the 2nd ultrasonic measurement method. It is a figure which shows a mode that a cap is attached to an ultrasonic measuring device. It is a perspective view of the ultrasonic measuring device which attached the cap. It is a front view of an ultrasonic measuring device. It is a rear view of an ultrasonic measuring device. It is a top view of an ultrasonic measuring device. It is a bottom view of an ultrasonic measuring device. It is a left view of an ultrasonic measuring device. It is a right view of an ultrasonic measuring device. It is a front view of the cap attached to an ultrasonic measuring device. It is a rear view of the cap attached to an ultrasonic measuring device. It is a top view of the cap attached to an ultrasonic measuring device. It is a bottom view of the cap attached to an ultrasonic measuring device. It is a left view of the cap attached to an ultrasonic measuring device. It is a right view of the cap attached to an ultrasonic measuring device.

Hereinafter, the configuration of the ultrasonic measuring instrument in the embodiment of the present invention will be described based on the drawings. The ultrasonic measuring instrument according to the present embodiment transmits ultrasonic waves toward the organ of the measurement subject, receives the reflected waves, and relates to the size of the organs by the ultrasonic A mode based on the reflected waves. It is a measuring instrument that measures size data. In addition, organs to be measured in this ultrasonic measuring instrument are luminal organs that can store body fluids such as urine and bile, and real organs, and specifically, bladders, gallbladder, rectum, and the like. In addition, the size data includes the amount of urine stored in the bladder, the amount of bile stored in the gallbladder, the size of the rectum due to fecal discharge, etc. explain.

As shown in FIGS. 1 to 4, the ultrasonic measuring instrument 1 is a measuring instrument having an ultrasonic probe 10 on the tip side thereof, and the ultrasonic probe 10 is applied to a predetermined position on the lower abdominal surface S coated with gel. It is a measuring instrument that measures the amount of urine stored while in contact. The amount of urine collected is measured while the ultrasonic probe 10 is tilted with respect to the vertical axis Z of the lower abdominal surface S, and the ultrasonic wave and its reflected wave are transmitted from the ultrasonic probe 10 while rotating about the vertical axis Z. Measured by sending and receiving. At this time, the ultrasonic measuring instrument 1 is brought into contact with the lower abdominal surface S by being held by a person to be measured, and the ultrasonic probe 10 is rotated by rotating the ultrasonic measuring instrument 1 by hand.

The ultrasonic measuring instrument 1 of the present embodiment is formed in a substantially rectangular parallelepiped shape, and has a tapered shape on the tip side that comes into contact with the lower abdominal surface S of the measurement subject. As shown in FIG. 5, an ultrasonic probe 10 in which a plurality (four in FIG. 5) of ultrasonic elements 11a to 11d are arranged in a straight line on the distal end side of the ultrasonic measuring instrument 1. Is provided. In the ultrasonic elements 11a to 11d, when the ultrasonic probe 10 is brought into contact with the lower abdominal surface S, the ultrasonic element 11a is arranged on the face side (upper side) and the ultrasonic element 11d is on the foot side (lower side). Placed in. The arrangement of the ultrasonic elements 11a to 11d is always constant during the rotation of the ultrasonic probe 10 with the vertical axis Z as the rotation axis. Further, as shown in FIGS. 6 and 7, the ultrasonic waves transmitted from the ultrasonic elements 11a to 11d are in the bladder with the axis L connecting the distal end side and the proximal end side of the ultrasonic measuring instrument 1 as the central direction. Is sent out in a fan shape that opens up and down. Further, a monitor 2 as a display unit used for displaying urine accumulation and the like and an operation button 3 for turning on / off the power of the ultrasonic measuring instrument 1 are provided on the side of the ultrasonic measuring instrument 1. ing. Further, the ultrasonic measuring instrument 1 is provided with an acceleration sensor 4 as an angle sensor capable of measuring the angle of the ultrasonic probe 10 with respect to the vertical axis Z in three dimensions.

As shown in FIG. 8, the ultrasonic measuring instrument 1 of the present embodiment is mainly composed of the ultrasonic probe 10 and the control unit 20 described above. The control unit 20 includes an ultrasonic control unit 21 that controls transmission / reception of ultrasonic waves and their reflected waves by the ultrasonic elements 11a to 11d, and an A / D conversion that converts an ultrasonic reflected wave that is an analog signal into a digital signal. A unit 22; an input unit 23 through which a person to be measured inputs input data; an angle sensor unit 24 that measures a rotation angle of the ultrasonic probe 10 with respect to the vertical axis Z based on the acceleration sensor 4; A storage unit 25 that stores various data, a calculation unit 26 that performs various calculations related to the amount of urine collection based on digitally converted reflected wave data and other various data, and calculation data calculated by the calculation unit 26 An alarm unit 27 for transmitting an alarm based on the above, an informing unit 28 for informing the arithmetic data by voice or display, and external communication not shown for the arithmetic data and input data It includes a communication unit 29 that transmits the end to, the.

The ultrasonic control unit 21 performs transmission control for amplifying the reflected waves received by the ultrasonic elements 11a to 11d in addition to performing transmission control for transmitting ultrasonic waves from the ultrasonic elements 11a to 11d at predetermined intervals. Is. The reflected wave is converted into a digital signal by the A / D conversion unit 22 and then input to the calculation unit 26 and the storage unit 25.
The input unit 23 inputs various data relating to the urine storage amount including a urine amount threshold value determined as the urine amount to be urinated. These input data are stored in the storage unit 25 via the calculation unit 26. Note that the urine volume threshold value may be stored in the storage unit 25 in advance.
The angle of inclination of the ultrasonic probe 10 measured by the angle sensor unit 24 is measured immediately after the ultrasonic waves are received by the ultrasonic elements 11a to 11d, and stored as the rotation angle of the ultrasonic probe 10 via the calculation unit 26. Input to the unit 25.

The calculation unit 26 calculates a urine volume in the bladder for each measurement cycle based on the reflected wave data, and a measurement data unit 26b generates organ-related data by associating the accumulated urine amount with a rotation angle. An error determination unit 26c that determines an error at a predetermined position based on the organ-related data, and a measurement end determination as a one-round determination unit that determines whether or not the ultrasonic probe 10 goes around the vertical axis Z as a rotation axis. A portion 26d is provided. Here, the organ-related data generated by the measurement data unit 26b associates the urine accumulation amount calculated based on the ultrasonic waves received by the ultrasonic elements 11a to 11d with the angle acquired immediately after reception of the ultrasonic waves. And is input to the storage unit 25. Further, the error of the predetermined position measured by the error determination unit 26c is suitable for measuring the contact position of the ultrasonic measuring device 1 that is in contact with the lower abdomen surface S of the measurement subject and the urine accumulation amount. And a direction calculation unit 26e that calculates an error direction based on organ-related data when an error at a predetermined position is equal to or greater than a predetermined threshold. When the position error is greater than or equal to a predetermined threshold, the distance calculation unit 26f that calculates the error distance based on the organ-related data is provided.

The alarm unit 27 is configured to receive ultrasonic urine volume data when the ultrasonic waves transmitted from the ultrasonic elements 11a to 11d hit the pubic bone, or between the ultrasonic elements 11a to 11d and the lower abdominal surface S. When the ultrasonic wave is not sufficiently transmitted or received due to the generated air gap, or when the measured urine accumulation exceeds the set value, an alarm is transmitted to notify the person to be measured, etc. . The alarm may be transmitted by sound, screen, or vibration, but may be transmitted using other methods.
The notification unit 28 displays various data relating to the urine volume and urine volume measurement calculated by the urine volume calculation unit 26a on the monitor 2, and transmits the direction and distance of the error by voice. The communication unit 29 outputs various data related to urine volume and urine volume measurement calculated by the urine volume calculation unit 26 a to an external device connected to the measuring instrument 1. At this time, the connection between the ultrasonic measuring instrument 1 and an external device may be wired or wireless. A urination diary can be created by connecting the ultrasonic measuring instrument 1 and an external device.

Next, a method for calculating the amount of stored urine used in this embodiment will be described. In the present embodiment, since the ultrasonic waves transmitted from the ultrasonic elements 11a to 11d are reflected at the boundaries between tissues, the ultrasonic waves transmitted from the ultrasonic elements 11a to 11d toward the bladder are the front wall of the bladder. The reflected waves are received by the ultrasonic elements 11a to 11d. And based on this reflected wave, the amount of urine storage is calculated by calculating by the ultrasonic A mode demonstrated below.

FIG. 9 is a schematic diagram of the waveform of the reflected wave received by each of the ultrasonic elements 11a to 11d, with the vertical axis representing the reflection intensity and the horizontal axis representing the time from transmission. Here, if the peak intensity of the reflected wave from the rear wall of the waveform received by the i-th ultrasonic element is Pi and the distance between the peaks of the reflected wave intensity from the front wall and the rear wall is Di, The urine accumulation amount EU 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 ultrasonic elements 11a to 11d, and is an integer from 1 to 4 here. PD is an average index value obtained by adding the product of the reflection intensity Pi of the reflected wave received by each of the ultrasonic elements 11a to 11d and the distance Di between the peaks for i = 1 to 4, and EU is The calculated urine accumulation amount, R, indicates a coefficient determined corresponding to individual differences based on the anatomical structure and the posture being measured. Therefore, the average index value PD and the urine accumulation amount EU are calculated every time ultrasonic waves are transmitted and received by the ultrasonic elements 11a to 11d. In this embodiment, since the ultrasonic waves are transmitted every 0.1 seconds, the urine accumulation amount EU is calculated every 0.1 seconds.

Next, a first ultrasonic measurement method using the ultrasonic measuring instrument 1 will be described with reference to FIGS. First, in a state where the ultrasonic measuring instrument 1 is vertically contacted with the lower abdomen surface S of the person to be measured, the operation button 3 is pressed to turn on the power, whereby the ultrasonic probe 10 is moved to the lower abdomen surface S. Then, transmission / reception of ultrasonic waves by the ultrasonic elements 11a to 11d in a state of being vertically contacted with respect to is started (step S101). Therefore, in step S101, the amount of urine stored when the ultrasonic measuring instrument 1 is held at a position along the vertical axis Z is measured. At this time, the angle θx formed between the axis L of the ultrasonic probe 10 and the horizontal axis (X axis in FIG. 4) of the lower abdominal surface S, the vertical axis of the axis L and the lower abdominal surface S (FIG. 4). The angle θy formed by the Y axis in the middle and the angle θz formed by the axis L and the vertical axis Z are measured by the acceleration sensor 4 immediately after the timing of receiving the ultrasonic wave transmitted every 0.1 seconds. . In step S101, the angles (θx, θy, θz) are (π / 2, π / 2, 0), and the organ-related data is generated by associating the angles with the urine accumulation amount, and the organ-related data is stored. Stored in the unit 25.

Next, as shown in FIGS. 2 and 4, the ultrasonic probe 10 is tilted toward the face with respect to the vertical axis Z, and the ultrasonic measuring instrument 1 is rotated clockwise around the vertical axis Z from this tilted state. Alternatively, the amount of stored urine is measured by transmitting and receiving ultrasonic waves while rotating counterclockwise (step S102). At this time, the ultrasonic measuring device 1 makes one turn of the ultrasonic measuring device 1 while keeping the angle θz constant. Therefore, when the angle θz is the predetermined value α, the angle θx moves in the range of π / 2−α to π / 2 + α and the angle θy moves in the range of π / 2−α to π / 2 + α. . These angles θx, θy, and θz are measured by the acceleration sensor 4 immediately after the timing of receiving the ultrasonic wave transmitted every 0.1 second. Therefore, in step S102, the ultrasonic probe 10 is moved to the vertical axis. At a plurality of positions inclined in the circumferential direction with respect to Z, the angle of the ultrasonic probe 10 with respect to the vertical axis Z and the urine accumulation amount are measured. Then, by associating the urine accumulation amount with the angles (θx, θy, θz) of the ultrasonic probe 10, organ-related data is generated and stored in the storage unit 25.

After making one round of the ultrasonic measuring instrument 1, the ultrasonic measuring instrument 1 is placed on the lower abdominal surface S so that the position of the ultrasonic measuring instrument 1 is the same as that at the start of transmission of ultrasonic waves in step S101. To return to vertical. Whether this return is possible is determined by the inclination of the ultrasonic probe 10 measured by the acceleration sensor 4 described above (step S103). When the ultrasonic probe 10 has returned to the original vertical position, the measurement end determining unit 26d determines that the ultrasonic measuring instrument 1 has made a round on the lower abdominal surface S about the vertical axis Z, Proceed to the next Step S104. If it is determined that the ultrasonic measuring instrument 1 has not returned perpendicular to the lower abdominal surface S, step S102 is continued until the ultrasonic measuring instrument 1 returns perpendicular to the lower abdominal surface. Let In steps S101 to S103, the step of measuring the rotation angle of the ultrasonic probe 10 and the amount of urine stored corresponds to the first step, and the step of storing the organ-related data in the storage unit 25 corresponds to the second step.

Next, it is determined whether or not the urine accumulation amount measured in steps S101 to S103 is properly measured in all directions on the lower abdominal surface S (step S104). Whether or not it is appropriate is determined by whether or not the circumferential angles (θx, θy) associated with the urine accumulation amount are calculated within a predetermined interval. The circumferential angle (θx, θy) is determined based on the number of measurements when the circumferential angle (θx, θy) is π / 2 ≦ θx ≦ π / 2 + α and π / 2 ≦ θy ≦ π / 2 + α. , Π / 2-α ≦ θx ≦ π / 2 and π / 2 ≦ θy ≦ π / 2 + α, and π / 2−α ≦ θx ≦ π / 2 and π / 2−α ≦ θy ≦ The number of measurements in the case of π / 2 and the number of measurements in the case of π / 2 ≦ θx ≦ π / 2 + α and π / 2−α ≦ θy ≦ π / 2 are not less than a predetermined number, for example, 3 or more It is judged by whether or not. That is, whether or not the urine accumulation amount is properly measured in all directions on the lower abdominal surface S is determined by determining that the circumferential angles (θx, θy) are (π / 2, π / 2) as shown in FIG. ) In each of the first quadrant to the fourth quadrant in the two-dimensional graph with the point as the origin as the origin.

When the urine accumulation amount is measured in a predetermined number or more in any quadrant from the first quadrant to the fourth quadrant, the process proceeds to the next step S105. On the other hand, if the number of stored urine amounts is less than a predetermined number in any quadrant from the first quadrant to the fourth quadrant, an additional measurement of the urine storage amount is instructed in the next step S111, and the ultrasonic measuring device The measurement of the urine accumulation amount in step S102 is continued until 1 returns perpendicular to the lower abdominal surface S.

In step S105, noise processing relating to the measured urine accumulation amount is performed based on the urine accumulation amount of the organ-related data stored in the storage unit 25. The noise process is a process of removing a specific urine storage amount from the organ-related data when there is a specific urine storage amount in the measured urine storage amount, for example, when comparing a plurality of urine storage amounts close to the calculated timing. When an extremely small urine accumulation amount or an extremely large urine accumulation amount is measured as compared with other urine accumulation amounts, this is a process of removing these data from the organ-related data. This noise processing can be executed by a conventionally known noise processing technique. As the noise to be processed by the noise processing, for example, although a gel is applied to the lower abdomen surface S, an air gap is generated between the ultrasonic elements 11a to 11d and the lower abdomen surface S. There is noise that occurs when ultrasonic waves are not sufficiently transmitted and received. In this case, the urine accumulation amount is measured as 0 to a very small amount, and becomes a specific urine accumulation amount.

Step S106 stores whether or not the reflected wave of the ultrasonic wave transmitted from the ultrasonic element 11d located on the most foot side is received based on the organ related data excluding the specific urine accumulation amount in Step S105 This is a step of determining from various data stored in the data 25. As a case where the ultrasonic wave is not received by the ultrasonic element 11d, the ultrasonic wave transmitted from the ultrasonic element 11d may be blocked by the pubic bone P. When it is determined that the ultrasonic reflected wave is not received by the ultrasonic element 11d, it is determined that the measurement of the amount of urine is an inappropriate measurement, and in step S110, the ultrasonic measuring device 1 is determined. The circumferential angle (θx, θy) indicating the position directly above the center of the bladder B from the abutting position and the error distance calculated by the distance calculation unit 26f are notified. On the other hand, when it is determined that the ultrasonic reflected wave is received by the ultrasonic element 11d, it is determined that the measurement of the urine accumulation is an appropriate measurement, and the process proceeds to the next step S107. As described above, in step S106, the urine accumulation amount including the ultrasonic wave transmitted toward the pubic bone P can be excluded from the urine accumulation amount in each direction measured in steps S101 to S103. The accuracy of the error of the predetermined position with respect to can be improved.

In step S107, the maximum urine storage amount among the urine storage amounts obtained by removing noise data in step S105 from the urine storage amount calculated in step S102, and the circumferential angles (θx, θy) corresponding to the maximum urine storage amount, Thus, the direction of the ultrasonic probe 10 when the maximum urine accumulation amount is calculated is specified.
Further, in step S108 corresponding to the third step of the present invention, it is determined whether or not the maximum urine accumulation amount is an appropriately calculated urine accumulation amount in the bladder. As shown in FIG. 7, this determination is based on the assumption that the maximum urine storage amount is the urine storage amount calculated based on the ultrasonic waves that are transmitted and received near the center of the bladder B. Is determined based on the calculated distance d3 obtained from the distance from the contact position to the center of the bladder and the axial angle θz transmitted and received by the ultrasonic elements 11a to 11d. This calculated distance d3 is a distance d1 + d2 / from the contact position of the ultrasonic measuring instrument 1 to the center of the bladder obtained from a distance d1 from the lower abdominal surface S to the bladder front wall and a distance d2 from the bladder front wall to the rear wall. 2 and the angle θz in the axial direction are calculated by the following equation (3).
d3 = (d1 + d2 / 2) × cos θz (3)
Here, in this equation (3), it can be obtained based on a reflected wave in a specific ultrasonic element among the ultrasonic elements 11a to 11d, for example, the ultrasonic element 11c (ch3).

In other words, the calculated distance d3 represents an error between the position directly above the center of the bladder B and the contact position of the ultrasonic measuring instrument 1, and the larger the calculated distance d3, the greater the distance from the ultrasonic probe 10. It means that ultrasonic waves are transmitted and received in a state tilted with respect to the bladder B. When the calculated distance d3 is within a predetermined threshold or when the reflected waves can be received for all the ultrasonic waves transmitted in the first to fourth quadrants, the maximum urine accumulation amount specified in step S107 is It is determined that the amount of accumulated urine in the bladder is appropriately calculated, and the process proceeds to the next step S109. On the other hand, if it is determined that the error in the accumulated urine amount is larger than a predetermined threshold value, or if some of the reflected waves cannot be received for the ultrasonic waves transmitted in the first to fourth quadrants, the identification is made in step S107. It is determined that the maximum urine accumulation amount does not appropriately calculate the urine accumulation amount in the bladder, and the process proceeds to step S110. Steps S105 to S108 correspond to the third step.

In step S109, the maximum urine accumulation amount specified in step S107 is used as the urine accumulation amount in the bladder, and this urine accumulation amount is displayed on the monitor 2. With this display, the measurement of the urine storage amount by the ultrasonic measuring device 1 is completed. Then, by turning off the operation button 3 and turning off the power, various data such as organ-related data stored in the storage unit 25 is reset.
This data reset may be performed by automatic power-off by not performing the operation of the ultrasonic measuring instrument 1 for a certain period of time, or may be performed when the operation button 3 is performed in step S101. .

In step S110 corresponding to the fourth step of the present invention, the notification unit 27 notifies the measurement subject or the like by voice that the contact position of the ultrasonic probe 10 is changed. This notification notifies an error from the position directly above the center of the bladder B with reference to the position where the ultrasonic measuring device 1 is in contact in steps S101 to S109, and is calculated by the direction calculation unit 26e. The error direction, that is, the circumferential angle (θx, θy) indicating the position directly above the center of the bladder B from the position where the ultrasonic measuring device 1 is in contact, and the error distance calculated by the distance calculation unit 26f It is to inform. In step S110, either the circumferential angle, the error distance, or both are notified. Thus, by notifying the angle in the circumferential direction and the error distance, the error at the predetermined position can be reliably transmitted to the person to be measured. The notification means may be a display by the monitor 2.

According to the first ultrasonic measurement method, since the calculated distance d3 calculated in step S108 is measured as an error directly above the center of the bladder S, it is brought into contact with a predetermined position on the lower abdominal surface S. With a simple operation of rotating the ultrasonic probe 10 while tilting, an error of a predetermined position with respect to the position directly above the center of the bladder S can be easily measured.

Next, a second ultrasonic measurement method using the ultrasonic measurement device 1 will be described with reference to FIG. In the first ultrasonic measurement method and the second ultrasonic measurement method, a step of determining whether or not measurement is properly performed in all directions shown in step S106, and an additional measurement shown in step S111 However, the other steps are the same as those in the first ultrasonic measurement method. Therefore, the point that Step S106 and Step S111 in the first ultrasonic measurement method are omitted in the second ultrasonic measurement method will be described below.

As described above, in the second ultrasonic measurement method, the step corresponding to step S106 in the first ultrasonic measurement method is omitted. Therefore, in the second ultrasonic measurement method, it is not determined whether the ultrasonic reflected wave is received by the ultrasonic element 11d located on the most foot side. As described above, even if the step corresponding to step S106 is omitted, the center of the bladder S can be easily operated by tilting and rotating the ultrasonic probe 10 in contact with the predetermined position of the abdominal surface S. It is possible to easily measure an error of a predetermined position with respect to the position immediately above.
In the second ultrasonic measurement method, a step corresponding to step S111 in the first ultrasonic measurement method is omitted.

Next, an example of a preferable shape of the ultrasonic measuring instrument 1 will be described. As shown in FIGS. 13 to 20, the ultrasonic measuring instrument 1 is provided on the measuring instrument main body 8 that can be held by hand when measuring the urine accumulation amount, and on the distal end side of the measuring instrument main body 8. The probe unit 9 includes the ultrasonic probe 10 described above. In addition, the ultrasonic measuring instrument 1 is configured so that a cap 30 for covering the tip side can be attached.

The measuring instrument main body 8 is formed in a substantially rectangular parallelepiped with the direction along the axis L as the longitudinal direction, and is located on the other end side of the axis L and forms a plane of the ultrasonic measuring instrument 1; It has

side surfaces

13b, 14b, 16b, and 17b erected from the fourth surface. The side surface 13b constitutes a part of the back surface of the ultrasonic measuring device 1, the side surface 14b constitutes a part of the front surface of the ultrasonic measuring device 1, and the side surface 16b constitutes a part of the left side surface of the ultrasonic measuring device 1. The side surface 17b constitutes a part of the right side surface of the ultrasonic measuring instrument 1. The side surface 14b is provided at a position facing the side surface 13b, and the side surface 17b is provided at a position facing the side surface 16b.

The probe portion 9 is formed in a quadrangular frustum shape (a truncated quadrangular frustum shape) having a narrowed tip side, and a first surface 12 serving as a bottom surface located on the tip side of the axis L, and the first surface 12.

Inclined surfaces

13a, 14a, 16a, and 17a. The inclined surface 13 a constitutes a part of the back surface of the ultrasonic measuring device 1, the inclined surface 14 a constitutes a part of the front surface of the ultrasonic measuring device 1, and the inclined surface 16 a is a left side surface of the ultrasonic measuring device 1. The inclined surface 17a constitutes a part of the right side surface of the ultrasonic measuring instrument 1.

Therefore, in the shape of the ultrasonic measuring device 1 described above, the inclined surface 13a and the side surface 13b are surfaces constituting the back surface of the ultrasonic measuring device 1, and the inclined surface 13a and the side surface 13b are the second surface 13 of the present invention. Equivalent to. In addition, the inclined surface 14 a and the side surface 14 b are surfaces constituting the front surface of the ultrasonic measuring instrument 1, and the inclined surface 14 a and the side surface 14 b correspond to the third surface 14 of the present invention facing the second surface 13.

Next, the measuring instrument body 8 will be described. The intermediate portion 13c positioned between both ends of the side surface 13b is concavely curved in a sectional view in the direction along the axis L, and has constricted portions on both side ends along the axis L direction. 13c corresponds to the curved surface portion of the present invention. Further, the base end portion 13d of the side surface 13b is curved in a concave shape in a sectional view in the direction along the axis L. On the other hand, the intermediate portion 14c located between both ends of the side surface 14b is formed in a straight line in a sectional view in the direction along the axis L, and has constricted portions at both side ends along the direction of the axis L. Further, the intermediate portion 16c located between both ends of the side surface 16b is curved in a concave shape in a sectional view along the axis L, and the intermediate portion 17c located between both ends of the side surface 17b is also along the axis L. It is curved in a concave shape in a sectional view in the direction.

The intermediate portion 14c of the side surface 14b is provided at a position facing the formation position of the curved surface portion 13c, and an operation button 3 for turning on / off the power source of the ultrasonic measuring instrument 1 is disposed on the intermediate portion 14c. ing. At this time, the operation button 3 is arranged so that the surface of the operation button 3 and the side surface 14b are located on the same plane. In addition, the base end portion 14d of the side surface 14b is provided with a monitor 2 for displaying a urine accumulation amount calculated based on a reflected wave from the organ of the measurement subject, input data input by the measurement subject, or the like. Yes. That is, the monitor 2 is disposed at the base end portion 14d that is a position that is away from the position facing the formation position of the curved surface portion 13c and that is farther from the first surface 12 than the operation button 3. The monitor 2 is arranged so that the surface thereof is located inward of the side surface 14b. Further, the fourth surface 15 is formed with a speaker 5 for transmitting a sound and an alarm, a USB connection portion as a communication portion 29 described later, and a pair of

strap holes

6 and 6 for attaching a strap. .

Next, the probe unit 9 will be described. The

inclined surfaces

13a, 14a, 16a, and 17a are formed in a trapezoidal shape with the tip side narrowed. The inclined surface 13a and the inclined surface 14a are provided at positions facing each other. The angle formed between the inclined surface 13a and the first surface 12 and the angle formed between the inclined surface 14a and the first surface 12 are both The angle θ1 is an obtuse angle. The inclined surface 16a and the inclined surface 17a are provided at positions facing each other. The angle formed between the inclined surface 16a and the first surface 12 and the angle formed between the inclined surface 17a and the first surface 12 are both The angle θ2 is larger than the angle θ1. Further, the inclined surface 13a is formed with an engaging convex portion 18a extending in the width direction orthogonal to the axis L, and the inclined surface 14a of the third surface 14 is engaged in the width direction orthogonal to the axis L. A convex portion 18b is formed. Ultrasonic elements 11 a to 11 d are accommodated in the probe unit 9, and ultrasonic waves transmitted from the ultrasonic elements 11 a to 11 d are transmitted from the first surface 12.

Next, the cap 30 will be described with reference to FIGS. 13, 14, and 21 to 26. FIG. The cap 30 includes a bottom wall 31 formed in a rectangular shape with rounded corners, and side walls 32a to 32d erected from each side of the bottom wall 31, and an opening 33 is formed by these side walls 32a to 32d. Is formed. The angle formed between the side wall 32a and the bottom wall 31, the angle formed between the side wall 32b and the bottom wall 31, the angle formed between the side wall 32c and the bottom wall 31, and the angle formed between the side wall 32d and the bottom wall 31 are all. This angle θ3 is an obtuse angle smaller than the angle θ1 formed by the

inclined surfaces

13a, 14a and the first surface 12 and the angle θ2 formed by the

inclined surfaces

16a, 17a and the first surface 12. The cap 30 is formed so that its height is slightly larger than the length of the probe portion 9. Further, a pair of

strap holes

7, 7 for attaching a strap are formed in the side wall 32d.

Also, an engagement recess 34a is formed on the inner surface side of the side wall 32a, and an engagement recess 34b is formed at a position facing the engagement recess 34a on the inner surface side of the side wall 32b. Then, as shown in FIGS. 13 and 14, the engagement convex portion 18 a formed on the inclined surface 13 a of the second surface 13 is engaged with the engagement concave portion 34 a formed on the side wall 32 a, and the third The cap 30 is attached to the ultrasonic measuring instrument 1 by engaging the engaging convex portion 18b formed on the inclined surface 14a of the surface 14 with the engaging concave portion 34b formed on the side wall 32b. 9 can be covered with a cap 30.

Next, how to grasp the ultrasonic measuring instrument 1 when measuring the amount of urine collected while bringing the first surface 12 of the ultrasonic measuring instrument 1 into contact with a predetermined position of the lower abdominal surface S will be described. The ultrasonic measuring device 1 is a measuring device having a length of about 15 centimeters and a width and a depth of about 4 centimeters, and the length around the axis L of the measuring device main body 8 is about 16 centimeters. It is a measuring instrument. Therefore, the length around the axis L of the measuring instrument main body 8 is substantially the same as the distance between the head of the thumb and the head of the little finger when the palm is spread, and the

intermediate portions

13c, 14c, 16c and 17c are You can hold it with your palm and fingers covered.

At this time, the intermediate portion 13c is concavely curved in a sectional view in the direction along the axis L, and has constricted portions on both side ends along the axis L direction, so that the shape of the ultrasonic measuring instrument 1 is grasped. Easy to shape. The urine accumulation is measured while rotating the ultrasonic measuring instrument 1 clockwise or counterclockwise with the third surface 14 on which the monitor 2 is placed facing the face side of the person to be measured. Therefore, the operation button 3 provided on the intermediate portion 14b can be easily pushed by holding the ultrasonic measuring instrument 1 with the thumb belly in contact with the intermediate portion 14c of the third surface 14. . Further, since the monitor 2 is arranged at a position farther from the first surface 12 than the operation button 3, the monitor 2 can be prevented from being hidden when the ultrasonic measuring instrument 1 is held. You can measure the amount of urine while watching. Since the speaker 5 is formed on the fourth surface 15 of the ultrasonic measuring instrument 1, the direction in which the speaker 5 is directed can be set to a direction that can be easily heard by the person to be measured when measuring the urine accumulation amount. .

As described above, the embodiment of the present invention has been described in detail. However, the measurement posture of the measurement subject may be a supine position, a sitting position, or the like. The present invention can be modified in various ways without departing from the gist thereof. For example, in the above-described first and second ultrasonic measurement methods, the ultrasonic probe 10 is rotated by hand, but the inclination of the ultrasonic measurement device 1 is changed by an inclination rotation mechanism such as a step motor, The transmission / reception direction of ultrasonic waves may be inclined in the circumferential direction with respect to the vertical axis Z.
In the above embodiment, the ultrasonic probe 10 is rotated about the vertical axis Z as a rotation axis. However, depending on the organ to be measured, the ultrasonic probe 10 is not a vertical axis but passes through the contact position of the ultrasonic probe 10 on the body surface. The axis may be a rotation axis.

In addition, the suitability of the omnidirectional measurement of the urine accumulation amount determined in steps S104 and S204 is determined by the circumferential angle (θx, θy) of each urine accumulation amount measured in steps S101 to S103 and steps S201 to S203. It may be determined whether or not all the differences are within a predetermined threshold.
Further, the noise processing in steps S105 and S205 is performed in the circumferential direction associated with a greatly different urine accumulation amount when a greatly different urine accumulation amount is measured as compared with each urine accumulation amount stored in the storage unit 25. Processing for correcting greatly different urine accumulation amounts may be performed by complementing the angles (θx, θy) based on the circumferential angle near the circumferential angle.
Further, the suitability of the maximum urine storage amount determined in steps S108 and S207 is the maximum urine storage amount that is the maximum among the urine storage amounts measured while rotating the ultrasonic measuring instrument 1 while being tilted with respect to the vertical axis Z. It is determined whether or not the difference between the amount and the amount of stored urine measured in a state where the ultrasonic measuring instrument 1 is in contact with the lower abdomen surface S of the person to be measured is equal to or less than a predetermined threshold value. Also good. When the difference in the urine storage amount is equal to or less than a predetermined threshold, it is determined that the maximum urine storage amount appropriately calculates the urine storage amount in the bladder, and the difference in the urine storage amount is larger than the predetermined threshold value. Therefore, it is determined that the maximum urine accumulation amount does not appropriately calculate the urine accumulation amount in the bladder.
Furthermore, in the ultrasonic measuring instrument according to the embodiment of the present invention, the ultrasonic probe 10 is measured while being brought into contact with the lower abdomen surface S of the person to be measured. There is. For this reason, a pressure sensor may be provided in the ultrasonic probe so that it can be confirmed that the ultrasonic probe is pressed against the lower abdomen surface S of the measurement subject with a pressing force within a predetermined range. As the confirmation method, there is a method in which an alarm is transmitted or the urine accumulation amount cannot be measured when the measurement of the urine accumulation amount is started when the pressing force to the lower abdominal surface S is not within a predetermined range. is there.

1 Ultrasonic measuring instrument 2 Display (monitor)
3 Operation button 5 Speaker 10 Ultrasonic probes 11a to 11d Ultrasonic element 12 First surface 13 Second surface 13c Curved surface portion (intermediate portion)
14 3rd surface 15 4th surface 21 Ultrasonic control part 24 Angle sensor part 25 Memory | storage part 26 Calculation part 26c Error determination part 26d One round determination part (measurement completion | finish determination part)
26e Direction calculation unit 26f Distance calculation unit S Body surface (lower abdomen surface)
Z Vertical axis

Claims

An ultrasonic probe having an ultrasonic element for transmitting ultrasonic waves toward the organ of the subject;
An ultrasonic control unit for controlling ultrasonic transmission by the ultrasonic element;
In an ultrasonic measuring instrument comprising: an arithmetic unit that calculates size data related to the size of the organ by an ultrasonic A mode based on a reflected wave from the organ of the measurement subject;
The ultrasonic measuring instrument abuts the ultrasonic probe on a predetermined position on the body surface of the measurement subject and rotates the ultrasonic probe about an axis passing through the predetermined position as a rotation axis. A measuring instrument that calculates the size data by transmitting and receiving ultrasonic waves and their reflected waves at a plurality of positions inclined in the circumferential direction with respect to the
An angle sensor unit for measuring an angle of the ultrasonic probe with respect to the axis;
A storage unit for storing the size data as organ-related data associated with an angle measured by the angle sensor unit;
An error determination unit that determines an error of the predetermined position based on the organ-related data;
An ultrasonic measuring instrument comprising:
The organ is the bladder;
The ultrasonic measuring device according to claim 1, wherein the size data is a stored amount of urine in the bladder.
The ultrasonic measuring instrument according to claim 2, wherein the ultrasonic probe includes a plurality of ultrasonic elements arranged in a line.
The superimposition determination unit according to claim 3, wherein the error determination unit includes a direction calculation unit that calculates a direction of the error based on the angle when an error at the predetermined position is equal to or greater than a predetermined threshold. Sound wave measuring instrument.
The superimposition determination unit according to claim 3, wherein the error determination unit includes a distance calculation unit that calculates a distance of the error based on the angle when the error at the predetermined position is equal to or greater than a predetermined threshold. Sound wave measuring instrument.
The circuit further comprises a one-round determination unit that determines, based on the angle, whether or not the ultrasonic probe rotates at least one round on the predetermined position by rotating about the axis. Item 6. The ultrasonic measuring instrument according to any one of Items 1 to 5.
The ultrasonic measuring device according to claim 6, wherein the ultrasonic measuring device has a tilt rotation mechanism that rotates the ultrasonic probe while tilting in the circumferential direction about the axis as a rotation axis.
A first surface for transmitting ultrasonic waves from the ultrasonic element;
A second surface erected from the first surface and having a curved surface portion for grip;
A third surface facing the second surface,
An ultrasonic measuring instrument comprising a display unit for displaying an ultrasonic measurement result on the third surface.
9. The ultrasonic measuring instrument according to claim 8, further comprising an operation button for operating the ultrasonic measuring instrument on the third surface.
The ultrasonic measuring instrument according to claim 8 or 9, wherein the display unit is arranged at a position avoiding a position facing the formation position of the curved surface part.
The operation button is disposed at a position facing the formation position of the curved surface portion,
The ultrasonic measuring device according to claim 9, wherein the display unit is arranged at a position farther from the first surface than the operation button.
The ultrasonic measuring instrument according to claim 8, wherein a speaker is formed on a fourth surface facing the first surface.
An ultrasonic probe including an ultrasonic element that transmits ultrasonic waves toward the measurement subject's bladder;
An ultrasonic control unit for controlling transmission of ultrasonic waves by the ultrasonic element;
In an ultrasonic measurement method using an ultrasonic measuring device comprising: an arithmetic unit that calculates a urine accumulation amount in the bladder by an ultrasonic A mode based on a reflected wave from the measurement subject's bladder;
The ultrasonic measuring instrument is in contact with a predetermined position on the body surface of the measurement subject, and a plurality of the ultrasonic probes are inclined in the circumferential direction with respect to the axis while rotating the ultrasonic probe about the axis of the predetermined position. At a position, measuring an angle of the ultrasonic probe with respect to the axis with an angle sensor, and measuring a urine accumulation amount by receiving the reflected wave;
A second step of storing in the storage unit organ-related data associating the angle measured in the first step with the urine accumulation amount;
A third step of determining an error of the predetermined position based on the organ-related data;
An ultrasonic measurement method using an ultrasonic measuring instrument having
In the first step, the ultrasonic probe is measured at a position along the axis of the predetermined position, the angle of the ultrasonic probe is measured by the angle sensor, and the amount of urine stored is measured by receiving the reflected wave. Including
The third step is based on the organ-related data related to the urine storage amount at a position along the axis and the organ-related data related to the maximum urine storage amount among the urine storage amounts calculated at positions inclined with respect to the axis. 14. The ultrasonic measurement method using an ultrasonic measurement device according to claim 13, further comprising a step of determining an error at a predetermined position.
The ultrasonic probe includes a plurality of ultrasonic elements arranged in a line,
The first step includes a step of measuring the angle of the ultrasonic probe and the amount of urine collected by bringing these ultrasonic elements into contact with the predetermined position so as to go from the foot side of the person to be measured to the face side,
The said 3rd step includes the step which determines the presence or absence of the reflected wave received by the foot side ultrasonic element located in the most foot side among these several ultrasonic elements. An ultrasonic measurement method using an ultrasonic measuring instrument.
The third step includes a step of determining whether an error at the predetermined position is equal to or greater than a predetermined threshold value,
When it is determined in the third step that the error at the predetermined position is greater than or equal to a predetermined threshold, the direction in which the ultrasonic measuring instrument should move is notified based on the angle associated with the maximum urine accumulation amount. The ultrasonic measurement method using the ultrasonic measurement device according to claim 15, further comprising four steps.
In the fourth step, when the urine accumulation amount measured without receiving the reflected wave by the foot side ultrasonic element is included in the organ-related data, based on the angle associated with the urine accumulation amount, The ultrasonic measurement method using the ultrasonic measurement device according to claim 16, further comprising a step of notifying a direction in which the ultrasonic measurement device should move.
The first step includes a step of measuring an angle of the ultrasonic probe and a urine accumulation amount while rotating the ultrasonic probe at least once around an axis of the predetermined position as a rotation axis;
The third step includes removing a specific urine accumulation amount as noise from the urine accumulation amount stored in the storage unit, and determining an error at the predetermined position based on the organ-related data from which the noise has been removed. The ultrasonic measurement method using the ultrasonic measuring device according to claim 13, wherein
The ultrasonic measuring device has an inclined rotation mechanism that rotates the ultrasonic measuring device while tilting the ultrasonic measuring device in the circumferential direction about the axis as a rotation axis,
The first step includes a step of calculating a urine accumulation amount by receiving the reflected wave while rotating the ultrasonic probe while being inclined with respect to the axis by the tilt rotation mechanism. An ultrasonic measurement method using the ultrasonic measurement device according to claim 18.