JPWO2018168363A1 - Ultrasonic measuring device and ultrasonic measuring method using ultrasonic measuring device - Google Patents

Abstract

An ultrasonic measurement device and an ultrasonic measurement method using the ultrasonic measurement device, which can more easily perform positioning. An ultrasonic probe is brought into contact with a predetermined position on a body surface of a subject, and is tilted in a circumferential direction with respect to an axis while rotating the ultrasonic probe around an axis passing through the predetermined position as a rotation axis. An ultrasonic sensor and a reflected wave at a plurality of positions to calculate size data related to the size of the organ, and an angle sensor unit 24 that measures the angle of the ultrasonic probe 10 with respect to the axis. A storage unit 25 that stores 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 at a predetermined position based on the organ-related data. It is characterized by the following. [Selection diagram] FIG.

Description

  The present invention relates to an ultrasonic measuring device for measuring data related to the size of an organ using ultrasonic waves, and an ultrasonic measuring method using the ultrasonic measuring device.

Conventionally, an ultrasonic wave is transmitted toward an organ such as the bladder or the gallbladder, and a reflected wave is received. Based on the reflected wave, the size as data relating to the size of the organ is determined by the ultrasonic A mode. Ultrasonic measuring devices for measuring data are known.
By the way, since the size data measured by this type of ultrasonic measuring device is sensitive to the contact position and angle of the ultrasonic probe, the ultrasonic probe is required to measure the size data more accurately. Needs to be positioned at a position and angle suitable for measuring the size data. As an example, Patent Literature 1 discloses a measurement mode in which the amount of urine is measured in a state of being attached to the abdomen, and a positioning mode in which the amount of urine is measured to determine a position suitable for attaching an ultrasonic probe in the measurement mode. An ultrasonic urine volume measuring device having the following is disclosed. At this time, the measurement of the amount of urine collection in the positioning mode is performed at a temporary measurement position as a position where the ultrasonic probe is temporarily attached, for the purpose of a position where the amount of urine collection can be measured with high accuracy.

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

International Publication No. WO 2016/030959

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

  In order to solve the above-described problems, an ultrasonic measurement device of the present invention includes an ultrasonic probe having an ultrasonic element that transmits ultrasonic waves toward an organ of a subject, and an ultrasonic probe that transmits ultrasonic waves by the ultrasonic element. An ultrasonic measurement comprising: an ultrasonic control unit for controlling; and an arithmetic unit for calculating size data related to the size of the organ in an ultrasonic A mode based on a reflected wave from the organ of the subject. In the device, the ultrasonic measuring device, the ultrasonic probe is brought into contact with a predetermined position on the body surface of the person to be measured, and while rotating the ultrasonic probe with the 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 reflected waves at a plurality of positions inclined in the circumferential direction with respect to the axis, and measures an angle of the ultrasonic probe with respect to the axis. Angle sensor 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 of the predetermined position based on the organ-related data. It is characterized by having.

As a preferable specific example of the ultrasonic measuring device, there is a device in which the organ is the bladder, and the size data is the amount of urine stored in the bladder.
Further, it is preferable that the ultrasonic probe 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 the error at the predetermined position is equal to or greater than a predetermined threshold.
Further, 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 the error at the predetermined position is equal to or greater than a predetermined threshold.
In addition, the ultrasonic measuring device includes a one-circle determining unit that determines whether or not the ultrasonic probe is rotating at least one round on the predetermined position based on the angle by rotating the ultrasonic probe around the axis. It is more preferable to have.
The ultrasonic measuring device may include a tilt rotation mechanism that rotates the ultrasonic probe while tilting the ultrasonic probe in a circumferential direction about the axis as a rotation axis.
Further, the ultrasonic measuring device of the present invention comprises: a first surface for transmitting ultrasonic waves from an ultrasonic element; a second surface standing from the first surface and having a curved surface portion for grip; A third surface facing the surface, and a display unit for displaying an ultrasonic measurement result on the third surface.
In this case, the third surface may have an operation button for operating an ultrasonic measurement device.
Further, it is preferable that the display unit is arranged at a position avoiding a position facing a position where the curved surface portion is formed.
Further, it is preferable that the operation button is arranged at a position facing the position where the curved surface portion is formed, and the display unit is arranged at a position farther from the first surface than the operation button.
A speaker may be formed on a fourth surface facing the first surface.

  Further, an ultrasonic measuring method using the ultrasonic measuring device of the present invention includes an ultrasonic probe having an ultrasonic element for transmitting ultrasonic waves toward the bladder of a subject, and an ultrasonic probe by the ultrasonic element. An ultrasonic measurement device comprising: an ultrasonic control unit that controls transmission; and a calculation unit that calculates the amount of urine stored in the bladder in an ultrasonic A mode based on a reflected wave from the subject's bladder. In the ultrasonic measuring 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 with the axis at the predetermined position as a rotation axis. A first step of measuring an angle of the ultrasonic probe with respect to the axis by an angle sensor at a plurality of positions inclined in the circumferential direction, and measuring the amount of urine collection by receiving the reflected wave; and Angle and Urine Storage Measured at A second step of storing in the storage unit to the organ-related data associated with, based on the organ-related data, and having a third step of determining an error of the predetermined position.

Here, the first step is to measure the angle of the ultrasonic probe with the angle sensor at a position along the axis of the ultrasonic probe at the predetermined position, and to receive the reflected wave to determine the amount of urine collection. Measuring, wherein the third step comprises organ-related data relating to the amount of urine collected at a position along the axis, and organ-related data relating to the largest amount of urine accumulated among the urine collections calculated at a position inclined with respect to the axis. It is preferable to include 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 the first step is such that these ultrasonic elements are directed from the feet to the face of the subject. Measuring the angle of the ultrasonic probe and the amount of urine storage in contact with the predetermined position, wherein the third step is a foot-side ultrasonic element located closest to the foot of the plurality of ultrasonic elements. It is preferable to include a step of determining the presence or absence of a reflected wave received at the step (a).
Further, 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, and in the third step, determining that the error at the predetermined position is equal to or greater than a predetermined threshold. At this time, it is preferable that the method further includes a fourth step of notifying a moving direction of the ultrasonic measuring device based on an angle related to the maximum urine storage amount.
Furthermore, the fourth step is based on the angle associated with the urine collection amount when the urine collection amount measured without receiving a reflected wave at the foot-side ultrasonic element is included in the organ-related data. Preferably, the method further includes the step of notifying the moving direction of the ultrasonic measuring device.
Further, the first step includes a step of measuring the angle of the ultrasonic probe 10 and the amount of urine storage while rotating the ultrasonic probe at least one rotation about the axis at the predetermined position as a rotation axis, and the third step Includes removing a specific amount of urine stored in the amount of urine stored in the storage unit as noise, and determining an error at the predetermined position based on the organ-related data from which the noise has been removed. desirable.
The ultrasonic measuring device has a tilt rotation mechanism for rotating the ultrasonic measuring device while tilting the ultrasonic measuring device in the circumferential direction about the axis as a rotation axis, and the first step includes: The method may include a step of calculating the amount of urine storage by receiving the reflected wave while rotating the device while tilting with respect to the axis.

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

It is explanatory drawing which shows the state which made the ultrasonic measuring device contact | abut perpendicularly 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 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 measures the amount of urine collection, making an ultrasonic measuring device contact | abut perpendicularly to the surface of a lower abdomen. It is explanatory drawing which shows the state which is measuring the amount of urine collection, inclining the ultrasonic measuring device in the circumferential direction with respect to the surface of a lower abdomen. It is a schematic block diagram of an ultrasonic measuring device. It is a schematic diagram of the waveform of the reflected wave received by the ultrasonic element. 5 is a flowchart illustrating a first ultrasonic measurement method. It is a graph which shows the relationship between the angle of a circumferential direction, and the measurement timing of the calculated amount of urine collection. It is a flowchart explaining a 2nd ultrasonic measurement method. It is a figure showing signs that a cap is attached to an ultrasonic measuring instrument. It is a perspective view of the ultrasonic measuring device to which the cap was attached. 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 instrument. It is a top view of a cap attached to an ultrasonic measuring instrument. It is a bottom view of the cap attached to an ultrasonic measuring instrument. 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, a configuration of an ultrasonic measuring device according to an embodiment of the present invention will be described with reference to the drawings. The ultrasonic measuring device according to the present embodiment transmits an ultrasonic wave toward an organ of a subject, receives a reflected wave thereof, and uses the ultrasonic wave A mode based on the reflected wave to relate to the size of the organ. This is a measuring device for measuring size data to be measured. In addition, organs to be measured in this ultrasonic measuring instrument are luminal organs and solid organs capable of storing bodily fluids such as urine and bile, and specifically, bladder, gallbladder, rectum and the like. Further, as the size data, the amount of urine stored in the bladder, the amount of bile stored in the gallbladder, there is a change in the size of the rectum due to excretion of stool, etc. explain.

  As shown in FIGS. 1 to 4, the ultrasonic measuring device 1 is a measuring device having an ultrasonic probe 10 on the tip side, and the ultrasonic probe 10 is applied to a predetermined position on the lower abdominal surface S on which gel is applied. This is a measuring device that measures the amount of urine collected while being in contact with it. The measurement of the amount of urine storage is performed by rotating the ultrasonic probe 10 with the vertical axis Z as a rotation axis while tilting the ultrasonic probe 10 with respect to the vertical axis Z of the lower abdominal surface S, and transmitting the ultrasonic waves and the reflected waves from the ultrasonic probe 10. It is measured by transmitting and receiving. At this time, the ultrasonic measuring device 1 is in contact with the lower abdominal surface S by being held by the subject or the like, and the ultrasonic measuring device 1 is turned to rotate the ultrasonic probe 10.

  The ultrasonic measuring device 1 according to the present embodiment is formed in a substantially rectangular parallelepiped, and has a tapered shape on the tip side in contact with the lower abdominal surface S of the subject. As shown in FIG. 5, an ultrasonic probe 10 provided with a plurality of (four in FIG. 5) ultrasonic elements 11a to 11d arranged in a line in a straight line on the distal end side of the ultrasonic measuring instrument 1. Is provided. When the ultrasonic probe 10 is brought into contact with the lower abdominal surface S, the ultrasonic elements 11a are arranged on the face side (upper side), and the ultrasonic elements 11d are arranged 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 about the vertical axis Z as the rotation axis. As shown in FIGS. 6 and 7, the ultrasonic waves transmitted from the ultrasonic elements 11 a to 11 d have a bladder centered on an axis L connecting the distal side and the proximal side of the ultrasonic measuring device 1. Is transmitted in a fan shape that opens up and down. Further, on the side surface of the ultrasonic measuring device 1, a monitor 2 as a display unit used for displaying the amount of urine collection and the like and an operation button 3 for turning on / off the power of the ultrasonic measuring device 1 are provided. ing. Further, the ultrasonic measuring device 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 device 1 of the present embodiment mainly includes the above-described ultrasonic probe 10 and a control unit 20. The control unit 20 controls the transmission and reception of ultrasonic waves and their reflected waves by the ultrasonic elements 11a to 11d, and the A / D converter that converts the reflected ultrasonic waves, which are analog signals, into digital signals. A unit 22, an input unit 23 into which a subject or the like 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, and a urine volume. A storage unit 25 for storing various data, a calculation unit 26 for performing various calculations relating 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 information, a notifying unit 28 for notifying the calculated data by voice or display, and an external communication (not shown) for the calculated data and the input data. It includes a communication unit 29 that transmits the end to, the.

The ultrasonic control unit 21 performs transmission control for transmitting ultrasonic waves in the ultrasonic elements 11a to 11d at predetermined intervals, and also performs reception control for amplifying reflected waves received by the ultrasonic elements 11a to 11d. Things. 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 is for inputting various data and the like regarding the amount of urine storage, including the threshold of the amount of urine determined as the amount of urine to be urinated. These input data are stored in the storage unit 25 via the calculation unit 26. Note that the threshold of the urine volume 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 receiving ultrasonic waves by the ultrasonic elements 11a to 11d, and is stored as the rotation angle of the ultrasonic probe 10 via the arithmetic unit 26. Input to the unit 25.

  The calculation unit 26 includes a urine volume calculation unit 26a that calculates the urine volume in the bladder for each measurement cycle based on the reflected wave data, and a measurement data unit 26b that generates organ-related data by associating the urine collection volume with the 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 the ultrasonic probe 10 makes one rotation 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 amount of urine collection calculated based on the ultrasonic waves received by the ultrasonic elements 11a to 11d with the angle acquired immediately after receiving the ultrasonic waves. And is input to the storage unit 25. In addition, 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 contacting the lower abdominal surface S of the subject and the amount of urine collection. And a direction calculating unit 26e that calculates the direction of the error based on the organ-related data when the error at the predetermined position is equal to or greater than a predetermined threshold. When the position error is equal to or greater than a predetermined threshold, the distance calculation unit 26f calculates the error distance based on the organ-related data.

The alarm unit 27 is provided when the ultrasonic waves transmitted from the ultrasonic elements 11a to 11d hit the pubic bone and cannot receive urine volume data by the ultrasonic wave, or between the ultrasonic elements 11a to 11d and the lower abdominal surface S. When the transmission and reception of ultrasonic waves are not sufficiently performed due to the generated air gap, and when the measured urine storage amount exceeds the set value, an alarm is transmitted to notify the subject or the like. . The alarm may be a sound, a screen, or a vibration, but may be another method.
The notification unit 28 displays various data on the urine volume and the 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 relating to urine volume and urine volume measurement calculated by the urine volume calculation unit 26a to an external device connected to the measuring device 1. At this time, the connection between the ultrasonic measuring device 1 and the external device may be wired or wireless. By connecting the ultrasonic measuring device 1 to an external device, a urination diary can be created.

  Next, a method of calculating the amount of urine storage used in the present embodiment will be described. In the present embodiment, since the ultrasonic waves transmitted from the ultrasonic elements 11a to 11d are reflected at the boundary between the tissues, the ultrasonic waves transmitted from the ultrasonic elements 11a to 11d toward the bladder are reflected on the front wall of the bladder. And the back wall, and the reflected waves are received by the ultrasonic elements 11a to 11d. Then, based on this reflected wave, the amount of urine storage is calculated by performing an arithmetic operation in the ultrasonic A mode described below.

FIG. 9 is a schematic diagram of the waveform of the reflected wave received by each of the ultrasonic elements 11a to 11d, where the vertical axis represents the reflection intensity and the horizontal axis represents the time from transmission. Here, assuming that 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, and the distance between the peaks is Di. The urine storage amount EU can be calculated based on the following equations (1) and (2).
PD = ΣPi × Di (1)
EU = PD × R (2)
Here, i of Pi and Di means the number assigned to the plurality of ultrasonic elements 11a to 11d, and is an integer from 1 to 4 here. Further, 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 amount of urine storage, R, indicates a coefficient determined according to the individual difference based on the anatomical structure and the posture during measurement. Therefore, the average index value PD and the urine storage amount EU are calculated each time ultrasonic waves are transmitted and received by the ultrasonic elements 11a to 11d. In the present embodiment, since the ultrasonic wave is transmitted every 0.1 seconds, the urine storage amount EU is calculated every 0.1 seconds.

  Next, a first ultrasonic measurement method using the ultrasonic measurement device 1 will be described with reference to FIGS. First, the ultrasonic probe 10 is turned on by pressing the operation button 3 in a state where the ultrasonic measuring device 1 is vertically abutted against the lower abdominal surface S of the subject, so that the ultrasonic probe 10 is connected to the lower abdominal surface S. The transmission and reception of ultrasonic waves by the ultrasonic elements 11a to 11d in a state where the ultrasonic elements 11a to 11d are vertically contacted are started (step S101). Therefore, in step S101, the urine storage amount when the ultrasonic measuring device 1 is held at a position along the vertical axis Z is measured. At this time, the angle θx between the axis L of the ultrasonic probe 10 and the axis in the left-right direction of the lower abdomen surface S (X axis in FIG. 4), the vertical axis of the axis L and the lower abdomen surface S (FIG. The angle θy with the middle Y axis and the angle θz with 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 second. . In step S101, the angles (θx, θy, θz) become (π / 2, π / 2, 0), and organ-related data is generated by associating this angle with the amount of urine collection, 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 device 1 is rotated clockwise about the vertical axis Z from this tilted state. Alternatively, the amount of urine collection is measured by transmitting and receiving ultrasonic waves while rotating counterclockwise (step S102). At this time, the ultrasonic measuring device 1 makes the ultrasonic measuring device 1 make one round while keeping the angle θz constant. Therefore, when the angle θz is the predetermined value α, the angle θx moves in a range from π / 2 to α and π / 2 + α, and the angle θy moves in a range from π / 2 to α and π / 2 + α. . These angles θx, θy, and θz are measured by the acceleration sensor 4 immediately after the timing at which the ultrasonic wave transmitted every 0.1 seconds is received. Therefore, in step S102, the ultrasonic probe 10 is 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 amount of urine storage are measured. Then, the organ-related data is generated by associating the angle (θx, θy, θz) of the ultrasonic probe 10 with the amount of urine collection, and stored in the storage unit 25.

  After making the ultrasonic measuring device 1 make a complete rotation, the ultrasonic measuring device 1 is moved relative to the lower abdominal surface S such that the position of the ultrasonic measuring device 1 is the same as the position at the start of transmission of the ultrasonic wave in step S101. To return to vertical. Whether or not this return is possible is determined based on the inclination of the ultrasonic probe 10 measured by the above-described acceleration sensor 4 (step S103). When the ultrasonic probe 10 has returned to the original vertical position, the measurement end determination unit 26d determines that the ultrasonic measurement device 1 has made one round on the lower abdominal surface S about the vertical axis Z, The process proceeds to the next step S104. If it is determined that the ultrasonic measuring instrument 1 has not returned vertically to the lower abdominal surface S, the step S102 is continued until the ultrasonic measuring instrument 1 returns perpendicular to the lower abdominal surface. Let it. Then, in steps S101 to S103, the step of measuring the rotation angle and the amount of urine storage of the ultrasonic probe 10 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 collection amount measured in steps S101 to S103 is properly measured in all directions on the lower abdominal surface S (step S104). The determination as to whether or not it is appropriate is made based on whether or not the circumferential angles (θx, θy) associated with the amount of urine collection have been calculated within a predetermined interval. The determination of the circumferential angle (θx, θy) is 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 both a predetermined number or more, for example, three or more. Is determined. That is, whether or not the amount of urine collection is properly measured in all directions on the lower abdominal surface S is determined as shown in FIG. 11 when the angle (θx, θy) in the circumferential direction is (π / 2, π / 2). The determination is made based on whether or not a predetermined number, for example, three or more points have been measured in each of the first to fourth quadrants of the two-dimensional graph with the point of) as the origin.

  If the urine storage amount has been measured for a predetermined number or more in any of the first to fourth quadrants, the process proceeds to the next step S105. On the other hand, if the measured number of the urine collection is less than the predetermined number in any of the first to fourth quadrants, an additional measurement of the urine collection is instructed in the next step S111, and the ultrasonic measurement device Until 1 returns perpendicular to the lower abdominal surface S, the measurement of the amount of urine storage in step S102 is continued.

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

  In step S106, the storage unit determines 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 storage amount in step S105. This is a step of determining from various data stored in the storage unit 25. As a case where the reflected wave is not received by the ultrasonic element 11d, the ultrasonic wave transmitted from the ultrasonic element 11d may be obstructed by the pubic bone P. Then, when it is determined that the reflected wave of the ultrasonic wave is not received by the ultrasonic element 11d, it is determined that the measurement of the amount of urine collection is an inappropriate measurement, and in step S110, the ultrasonic measuring device 1 A circumferential angle (θx, θy) indicating a position immediately above the center of the bladder B from the contact position, and an error distance calculated by the distance calculation unit 26f are reported. When it is determined that the reflected wave of the ultrasonic wave is received by the ultrasonic element 11d, it is determined that the measurement of the urine storage amount is an appropriate measurement, and the process proceeds to the next step S107. As described above, in step S106, the amount of urine collection including the ultrasonic wave transmitted toward the pubic bone P can be excluded from the amount of urine collection in each direction measured in steps S101 to S103. Can be improved in the accuracy of the error of the predetermined position with respect to.

In step S107, the maximum urine storage amount in the urine storage amount obtained by removing the noise data in step S105 from the urine storage amount calculated in step S102, and the circumferential angle (θx, θy) corresponding to the maximum urine storage amount. From this, the direction of the ultrasonic probe 10 at the time of calculating the maximum urine storage amount is specified.
In step S108 corresponding to the third step of the present invention, it is determined whether or not the maximum amount of urine collection is a value obtained by appropriately calculating the amount of urine collection in the bladder. This determination is based on the assumption that the maximum urine collection amount is the urine collection amount calculated based on the ultrasonic waves transmitted and received near the center of the bladder B, as shown in FIG. Is determined from the distance from the contact position to the center of the bladder and the calculated distance d3 obtained from the axial angle θz transmitted and received by the ultrasonic elements 11a to 11d. The calculated distance d3 is a distance d1 + d2 // from the contact position of the ultrasonic measuring device 1 obtained from the distance d1 from the lower abdominal surface S to the front wall of the bladder and the distance d2 from the front wall of the bladder to the back 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 from a specific one of the ultrasonic elements 11a to 11d, for example, the ultrasonic element 11c (ch3).

  That is, the calculated distance d3 represents an error between the position immediately above the center of the bladder B and the abutment position of the ultrasonic measuring device 1. The greater the calculated distance d3, the more the ultrasonic wave is transmitted from the ultrasonic probe 10. This means that the ultrasonic wave is transmitted and received while being inclined with respect to the bladder B. When the calculated distance d3 is within the predetermined threshold value or when the reflected waves can be received for all the ultrasonic waves transmitted in the first to fourth quadrants, the maximum urine storage amount specified in step S107 is determined. It is determined that the amount of urine accumulated in the bladder has been appropriately calculated, and the process proceeds to the next step S109. On the other hand, when it is determined that the error in the amount of urine collection is larger than the predetermined threshold value, or when some reflected waves cannot be received for the ultrasonic waves transmitted in the first to fourth quadrants, it is specified in step S107. It is determined that the maximum urine storage amount has not properly calculated the urine storage 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 storage amount specified in step S107 is displayed on the monitor 2 as the urine storage amount in the bladder. With this display, the measurement of the amount of urine stored 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 the organ-related data stored in the storage unit 25 is reset.
The reset of the data may be performed by automatically turning off the power supply by not operating the ultrasonic measuring device 1 for a certain period of time, or may be performed when the operation button 3 is turned on in step S101. .

  In step S110 corresponding to the fourth step of the present invention, the notification unit 27 gives a voice notification to the subject or the like to change the contact position of the ultrasonic probe 10. This notification is for reporting an error from the position immediately above the center of the bladder B with reference to the position where the ultrasonic measurement device 1 is in contact in steps S101 to S109, and is calculated by the direction calculation unit 26e. The direction of the error, that is, the angle in the circumferential direction (θx, θy) indicating the position immediately above the center of the bladder B from the position where the ultrasonic measurement device 1 is in contact, and the distance of the error calculated by the distance calculation unit 26f To inform. Then, in step S110, either the angle in the circumferential direction or the error distance, or both of them are notified. In this way, by notifying the angle in the circumferential direction and the distance of the error, it is possible to reliably transmit the error of the predetermined position to the subject or the like. Note that this notification means may be a display on the monitor 2.

  Then, according to the first ultrasonic measurement method, the calculated distance d3 calculated in step S108 is measured as an error with respect to a position immediately above the center of the bladder S, so that the calculated distance d3 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, it is possible to easily measure an error of a predetermined position with respect to a position immediately above the center of the bladder S.

  Next, a second ultrasonic measurement method using the ultrasonic measurement device 1 will be described with reference to FIG. The first ultrasonic measurement method and the second ultrasonic measurement method include 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. , But the other steps are the same as in the first ultrasonic measurement method. Therefore, the point that steps S106 and 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, a step corresponding to Step S106 in the first ultrasonic measurement method is omitted. For this reason, in the second ultrasonic measurement method, it is not determined whether or not the ultrasonic element 11d located closest to the foot receives a reflected ultrasonic wave. In this way, even if the step corresponding to step S106 is omitted, the simple operation of tilting and rotating the ultrasonic probe 10 abutting on the predetermined position of the abdominal surface S allows the center of the bladder S to be rotated. It is possible to easily measure an error at a predetermined position with respect to a 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 device 1 will be described. As shown in FIGS. 13 to 20, the ultrasonic measuring device 1 is provided at a distal end side of the measuring device main body 8 which can be held by hand when measuring the amount of urine collected. And a probe section 9 having the above-described ultrasonic probe 10. The ultrasonic measuring device 1 is configured such that a cap 30 for covering the distal end side thereof can be attached.

  The measuring device main body 8 is formed in a substantially rectangular parallelepiped whose longitudinal direction is along the axis L, and is located on the other end side of the axis L and configures a plane of the ultrasonic measuring device 1; It has side surfaces 13b, 14b, 16b, 17b standing upright from the fourth surface. The side surface 13b forms a part of the back surface of the ultrasonic measuring device 1, the side surface 14b forms a part of the front surface of the ultrasonic measuring device 1, and the side surface 16b forms a part of the left side surface of the ultrasonic measuring device 1. The side surface 17b forms 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 section 9 is formed in a truncated quadrangular pyramid shape (truncated quadrangular truncated pyramid shape) having a thin front end side, and has a first surface 12 as a bottom surface located on the front end side of the axis L, and a first surface 12. Have inclined surfaces 13a, 14a, 16a, 17a. The inclined surface 13a constitutes a part of the back surface of the ultrasonic measuring device 1, the inclined surface 14a constitutes a part of the front surface of the ultrasonic measuring device 1, and the inclined surface 16a constitutes the left side surface of the ultrasonic measuring device 1. A part thereof is formed, and the inclined surface 17a forms a part of a 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 correspond to the second surface 13 of the present invention. Equivalent to. The inclined surface 14a and the side surface 14b constitute the front surface of the ultrasonic measuring instrument 1, and the inclined surface 14a and the side surface 14b correspond to the third surface 14 of the present invention facing the second surface 13.

  Next, the measuring device main body 8 will be described. The intermediate portion 13c located between both ends of the side surface 13b is concavely curved in a cross-sectional view in the direction along the axis L, and has constricted portions at both ends along the axis L direction. 13c corresponds to the curved surface portion of the present invention. The base end 13d of the side surface 13b is concavely curved in a cross-sectional view along the axis L. On the other hand, the intermediate portion 14c located between both ends of the side surface 14b is formed linearly in a cross-sectional view in the direction along the axis L, and has constrictions at both ends along the axis L direction. The intermediate portion 16c located between both ends of the side surface 16b is concavely curved in a cross-sectional view along the axis L, and the intermediate portion 17c located between both ends of the side surface 17b also extends along the axis L. It is concavely curved in a sectional view in the direction.

  An intermediate portion 14c of the side surface 14b is provided at a position facing the position where the curved surface portion 13c is formed, and an operation button 3 for turning on / off the power supply of the ultrasonic measuring device 1 is disposed in the intermediate portion 14c. ing. At this time, the operation button 3 is arranged such that the surface of the operation button 3 and the side surface 14b are located on the same plane. A monitor 2 is provided at the base end 14d of the side surface 14b to display the amount of urine collection calculated based on the reflected waves from the organ of the subject, input data input by the subject, and the like. I have. That is, the monitor 2 is located at a position avoiding a position facing the position where the curved surface portion 13c is formed, and is located at the base end portion 14d which is a position further away from the first surface 12 than the operation button 3 is. The monitor 2 is arranged so that its surface is located more inward than the side surface 14b. Further, the fourth surface 15 is formed with a speaker 5 for transmitting a voice or an alarm, a USB connection unit as a communication unit 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, 17a are formed in a trapezoidal shape with the tip end side narrowed. The inclined surface 13a and the inclined surface 14a are provided at positions facing each other, and the angle between the inclined surface 13a and the first surface 12 and the angle between the inclined surface 14a and the first surface 12 are both equal. The angle θ1 is an obtuse angle. The inclined surface 16a and the inclined surface 17a are provided at positions facing each other, and the angle between the inclined surface 16a and the first surface 12 and the angle between the inclined surface 17a and the first surface 12 are both equal. The angle θ2 is larger than the angle θ1. An engagement projection 18a extending in the width direction orthogonal to the axis L is formed on the inclined surface 13a, and an engagement projection 18a extending in the width direction orthogonal to the axis L is formed on the inclined surface 14a of the third surface 14. The projection 18b is formed. The ultrasonic elements 11 a to 11 d are accommodated in the probe section 9, and the 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 the opening 33 is formed by the side walls 32a to 32d. Are 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: The angle θ3 is an obtuse angle smaller than the angle θ1 between the inclined surfaces 13a and 14a and the first surface 12 and the angle θ2 between the inclined surfaces 16a and 17a and the first surface 12. The cap 30 is formed so that its height is slightly larger than the length of the probe section 9. Further, a pair of strap holes 7, 7 for attaching a strap are formed in the side wall 32d.

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

  Next, a method of grasping the ultrasonic measuring instrument 1 when measuring the amount of urine collection while bringing the first surface 12 of the ultrasonic measuring instrument 1 into contact with a predetermined position on the lower abdominal surface S will be described. The ultrasonic measuring device 1 is a measuring device having a length of about 15 cm, a width and a depth of about 4 cm, and a length around the axis L of the measuring device main body 8 is set to about 16 cm. It is a measuring instrument. Therefore, the length around the axis L of the measuring device 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 length of the intermediate portions 13c, 14c, 16c, and 17c is reduced. It can be held with your palm and fingers.

  At this time, since the intermediate portion 13c is curved concavely in a cross-sectional view in the direction along the axis L and has constrictions at both ends along the direction of the axis L, the shape of the ultrasonic measurement device 1 is grasped. It has an easy shape. Further, the measurement of the amount of urine collection is performed while rotating the ultrasonic measuring instrument 1 clockwise or counterclockwise with the third surface 14 on which the monitor 2 is arranged facing the face side of the subject or the like. Therefore, by holding the ultrasonic measuring device 1 in a state where the belly of the thumb is in contact with the intermediate portion 14c of the third surface 14, the operation button 3 provided on the intermediate portion 14b can be easily pressed. . Further, since the monitor 2 is arranged at a position farther from the first surface 12 than the operation button 3, it is possible to prevent the monitor 2 from being hidden when the ultrasonic measuring instrument 1 is held, and You can measure the amount of urine collected 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 is easy for the subject or the like to hear when measuring the amount of urine collection. .

As described above, the embodiments of the present invention have been described in detail. However, the measurement posture of the subject may be a supine position, a sitting position, or the like. In addition, various design changes can be made to the present invention 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 the ultrasonic wave may be inclined in the circumferential direction with respect to the vertical axis Z.
In the above-described 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 may not be a vertical axis but may be obliquely passing through the contact position of the ultrasonic probe 10 with the body surface. May be used as the rotation axis.

The suitability of the omnidirectional measurement of the amount of urine storage determined in steps S104 and S204 is based on the circumferential angles (θx, θy) of the respective amounts of urine measured in steps S101 to S103 and steps S201 to S203. May be determined based on whether or not all the differences are within a predetermined threshold.
Further, the noise processing in steps S105 and S205 is performed when the amount of urine storage significantly different from each of the amount of urine stored in the storage unit 25 is measured, and the noise processing in the circumferential direction associated with the amount of urine storage greatly different By complementing the angles (θx, θy) based on the circumferential angle near the circumferential angle, a process for correcting a greatly different urine storage amount may be performed.
Further, the suitability of the maximum urine collection amount determined in steps S108 and S207 is determined by the maximum urine collection amount which is the largest among the urine storage amounts measured while rotating the ultrasonic measuring device 1 while tilting the ultrasonic measurement device 1 with respect to the vertical axis Z. It is determined whether or not the difference between the amount and the amount of urine storage measured in a state where the ultrasonic measuring device 1 is vertically contacted with the lower abdominal surface S of the subject is equal to or less than a predetermined threshold. Is also good. When the difference in the amount of urine collection is equal to or less than the predetermined threshold, it is determined that the maximum amount of urine collection has appropriately calculated the amount of urine collection in the bladder, and when the difference in the amount of urine storage is larger than the predetermined threshold, Is determined that the maximum urine storage amount does not properly calculate the urine storage amount in the bladder.
Furthermore, in the ultrasonic measuring device according to the embodiment of the present invention, the measurement is performed by bringing the ultrasonic probe 10 into contact with the lower abdominal surface S of the subject. 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 abdominal surface S of the subject with a pressing force within a predetermined range. As a confirmation method, when an attempt is made to start measuring the amount of urine collection when the pressing force on the surface S of the lower abdomen is not within a predetermined range, an alarm is transmitted or the method of measuring the amount of urine collection becomes impossible. is there.

1 Ultrasonic measuring device 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 (Middle)
14 Third surface 15 Fourth surface 21 Ultrasonic control unit 24 Angle sensor unit 25 Storage unit 26 Operation unit 26c Error determination unit 26d One-round determination unit (measurement end determination unit)
26e Direction calculation unit 26f Distance calculation unit S Body surface (lower abdominal surface)
Z vertical axis

Claims (19)

An ultrasonic probe having an ultrasonic element that transmits ultrasonic waves toward an organ of a subject,
An ultrasonic control unit that controls ultrasonic transmission by the ultrasonic element,
Based on the reflected wave from the organ of the subject, based on the ultrasonic wave A mode, an arithmetic unit that calculates size data related to the size of the organ,
The ultrasonic measuring device abuts the ultrasonic probe at a predetermined position on the body surface of the subject, and rotates the ultrasonic probe around an axis passing through the predetermined position as a rotation axis. At a plurality of positions inclined in the circumferential direction with respect to, a measuring instrument that calculates the size data by transmitting and receiving ultrasonic waves and their reflected waves,
An angle sensor unit that measures an angle of the ultrasonic probe with respect to the axis,
A storage unit that stores the size data as organ-related data associated with the angle measured by the angle sensor unit,
An error determination unit that determines an error at the predetermined position based on the organ-related data;
An ultrasonic measuring device comprising: The organ is the bladder,
The ultrasonic measuring device according to claim 1, wherein the size data is the amount of urine stored in the bladder.   The ultrasonic measuring device according to claim 2, wherein the ultrasonic probe includes a plurality of ultrasonic elements arranged in a line.   The super-error according to claim 3, wherein the error determination unit has a direction calculation unit that calculates a direction 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 super-error 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 apparatus according to claim 1, further comprising: a one-round determination unit configured to determine whether or not the ultrasonic probe rotates at least one circumference on the predetermined position based on the angle by rotating about the axis as a rotation axis. Item 6. The ultrasonic measuring device according to any one of Items 1 to 5.   The ultrasonic measuring device according to claim 6, wherein the ultrasonic measuring device includes a tilt rotation mechanism that rotates the ultrasonic probe while tilting the ultrasonic probe in a circumferential direction about the axis as a rotation axis. A first surface for transmitting ultrasonic waves from the ultrasonic element,
A second surface standing from the first surface and having a curved surface portion for grip;
A third surface facing the second surface,
An ultrasonic measurement device, comprising: a display unit for displaying an ultrasonic measurement result on the third surface.   The ultrasonic measurement device according to claim 8, wherein an operation button for operating the ultrasonic measurement device is provided on the third surface.   The ultrasonic measuring device according to claim 8, wherein the display unit is arranged at a position avoiding a position facing a position where the curved surface portion is formed. The operation button is arranged at a position facing a formation position of the curved surface portion,
The ultrasonic measurement device according to claim 9, wherein the display unit is disposed at a position farther from the first surface than the operation buttons.   The ultrasonic measuring device 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 subject's bladder,
An ultrasonic control unit that controls transmission of ultrasonic waves by the ultrasonic element,
Based on a reflected wave from the subject's bladder, based on an ultrasound A mode, an arithmetic unit that calculates the amount of urine stored in the bladder, and an ultrasonic measurement method using an ultrasonic measurement device including:
The ultrasonic measuring device is brought into contact with a predetermined position on the body surface of the subject, and the ultrasonic probe is rotated around the axis at the predetermined position as a rotation axis, and a plurality of the ultrasonic probes are inclined in the circumferential direction with respect to the axis. At the position, while measuring the angle of the ultrasonic probe with respect to the axis with an angle sensor, the first step of measuring the amount of urine storage by receiving the reflected wave,
A second step of storing in the storage unit organ-related data in which the angle measured in the first step and the amount of urine collection are associated with each other;
A third step of determining an error at the predetermined position based on the organ-related data;
An ultrasonic measurement method using an ultrasonic measurement device having Measuring the angle of the ultrasonic probe at the angle sensor with the angle sensor at a position along the axis of the predetermined position and measuring the amount of urine collection by receiving the reflected wave; Including
The third step is based on organ-related data relating to the amount of urine collection at a position along the axis, and organ-related data relating to the maximum amount of urine collection among the amount of urine collection calculated at a position inclined with respect to the axis. 14. The method 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 row,
The first step includes a step of measuring the angle and the amount of urine storage of the ultrasonic probe by abutting these ultrasonic elements on the predetermined position so as to face the face side from the foot side of the subject,
The method according to claim 14, wherein the third step includes a step of determining the presence or absence of a reflected wave received by a foot-side ultrasonic element located closest to the foot of the plurality of ultrasonic elements. An ultrasonic measurement method using an ultrasonic measuring device. The third step includes a step of determining whether the error at the predetermined position is equal to or greater than a predetermined threshold,
When it is determined in the third step that the error of the predetermined position is equal to or larger than a predetermined threshold, a third direction for notifying the direction in which the ultrasonic measurement device should be moved is based on an angle related to the maximum urine collection amount. The ultrasonic measurement method using the ultrasonic measurement device according to claim 15, further comprising four steps.   The fourth step is, when the urine collection amount measured without receiving a reflected wave at the foot-side ultrasonic element is included in the organ-related data, based on the angle associated with the urine collection amount, The method for measuring ultrasonic waves using an ultrasonic measuring device according to claim 16, further comprising a step of notifying a moving direction of the ultrasonic measuring device. The first step includes measuring the angle of the ultrasonic probe and the amount of urine storage while rotating the ultrasonic probe at least one rotation about the axis at the predetermined position as a rotation axis,
The third step is a step of removing a peculiar urine collection amount from the urine storage amount stored in the storage unit as noise, and determining an error of the predetermined position based on the organ-related data from which the noise has been removed. An ultrasonic measurement method using the ultrasonic measurement device according to any one of claims 13 to 17, comprising: The ultrasonic measuring device has a tilt rotation mechanism for rotating the ultrasonic measuring device while tilting the ultrasonic measuring device in the circumferential direction with the axis as a rotation axis,
The first step includes a step of calculating the amount of urine storage 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 measuring method using the ultrasonic measuring device according to claim 18.

Images