WO2016030958A1 - Ultrasound urine volume meter and urine volume measurement method using same - Google Patents

Ultrasound urine volume meter and urine volume measurement method using same Download PDF

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Publication number
WO2016030958A1
WO2016030958A1 PCT/JP2014/072247 JP2014072247W WO2016030958A1 WO 2016030958 A1 WO2016030958 A1 WO 2016030958A1 JP 2014072247 W JP2014072247 W JP 2014072247W WO 2016030958 A1 WO2016030958 A1 WO 2016030958A1
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Prior art keywords
urine volume
bladder
ultrasonic
alarm
calculated
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PCT/JP2014/072247
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French (fr)
Japanese (ja)
Inventor
吉村康生
角耀
白崎功
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大塚メディカルデバイス株式会社
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Priority to PCT/JP2014/072247 priority Critical patent/WO2016030958A1/en
Priority to TW104126879A priority patent/TWI681759B/en
Priority to TW104126880A priority patent/TWI681757B/en
Priority to US14/835,782 priority patent/US20160058412A1/en
Priority to JP2015166663A priority patent/JP5890931B1/en
Priority to PCT/JP2015/004288 priority patent/WO2016031245A1/en
Priority to CA2959112A priority patent/CA2959112A1/en
Priority to EP15182516.3A priority patent/EP2989989B1/en
Priority to KR1020177005414A priority patent/KR20170066322A/en
Priority to US14/835,777 priority patent/US20160058411A1/en
Priority to EP18167547.1A priority patent/EP3366222A1/en
Priority to CN201580046286.XA priority patent/CN107072634B/en
Priority to EP15182524.7A priority patent/EP2989985A1/en
Priority to JP2015166662A priority patent/JP5890930B1/en
Priority to JP2016029638A priority patent/JP6595365B2/en
Publication of WO2016030958A1 publication Critical patent/WO2016030958A1/en
Priority to HK16110225.8A priority patent/HK1221890A1/en
Priority to HK16110224.9A priority patent/HK1221889A1/en
Priority to HK18114125.9A priority patent/HK1255127A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves

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  • the present invention relates to an ultrasonic urine volume measuring device that measures the amount of urine in the bladder by using ultrasonic waves, and a urine volume measuring method using the same.
  • the technical problem of the present invention is that the urine volume in the bladder and its temporal change can be measured with high accuracy in a necessary period according to the urine volume, and the power consumption can be suppressed.
  • An ultrasonic urine volume measuring device and a method for measuring urine volume using ultrasonic waves are provided.
  • an ultrasonic element that transmits an ultrasonic wave toward a measurement subject's bladder at a predetermined measurement period and receives a reflected wave from the bladder wall surface, and the reflection
  • An ultrasonic urine volume measuring device including a calculation unit that calculates the urine volume in the bladder based on the wave for each measurement period, the ultrasonic urine volume measuring device according to the calculated urine volume in the bladder It has an ultrasonic control part which changes the measurement cycle.
  • the calculation unit includes a comparison unit that compares the calculated urine volume in the bladder with a predetermined first threshold, and the ultrasonic control unit calculates the urine volume in the bladder calculated by the comparison unit. Is shorter than the first threshold, it is preferable to shorten the ultrasonic measurement period.
  • the comparison unit further compares the calculated amount of urine in the bladder with a predetermined second threshold value that is greater than the first threshold value, and the ultrasonic urine volume measuring device includes the comparison unit. It is desirable to have an alarm unit for transmitting an alarm when the urine volume in the bladder calculated in step S is greater than or equal to the predetermined second threshold value.
  • ultrasonic waves are transmitted to the measurement subject's bladder at a predetermined measurement cycle, and a reflected wave from the bladder wall surface is received and based on the reflected wave.
  • a method for measuring urine volume wherein the urine volume in the bladder is calculated for each measurement cycle, wherein the ultrasonic measurement cycle is changed according to the calculated urine volume in the bladder.
  • the calculated urine volume in the bladder is equal to or greater than a predetermined first threshold, it is preferable to shorten the measurement cycle. In this case, it is desirable to issue an alarm when the calculated urine volume in the bladder is equal to or greater than a predetermined second threshold value that is greater than the first threshold value.
  • the ultrasonic urine volume measuring instrument has an ultrasonic control unit that changes the measurement period of the ultrasonic wave transmitted from the ultrasonic element according to the calculated urine volume in the bladder.
  • Urine volume and its temporal change can be measured with high accuracy in a necessary period according to the urine volume, and power consumption can be suppressed.
  • the ultrasonic urine volume measuring device 1 mainly includes an ultrasonic probe 10 and a control unit 20.
  • a plurality of ultrasonic probes 10 (4 in the figure) are provided so that ultrasonic waves can be transmitted in a fan shape that opens up and down with respect to the bladder and the reflected waves from the bladder can be received.
  • Ultrasonic elements 11 are arranged in a straight line. Specifically, ultrasonic transmission such as ultrasonic jelly is performed such that the lower end portion thereof is located on the abdominal surface corresponding to the upper end portion of the pubic bone and the plurality of ultrasonic elements 11 are arranged along the vertical direction of the bladder. It is fixed via a medium.
  • the control unit 20 is roughly divided into an ultrasonic control unit 21 that controls transmission and reception of ultrasonic waves and their reflected waves by the ultrasonic element 11, and a medical worker such as a measurement subject or a doctor.
  • a data input unit 22 for inputting input data
  • a storage unit 23 for storing various data related to urine volume
  • Unit 24 an output unit 25 for outputting calculation data and input data calculated by the calculation unit 24, an alarm unit 26 for transmitting an alarm based on the calculation data and input data, and the calculation
  • a display unit 27 for displaying data, input data, and the like.
  • the ultrasonic control unit 21 In addition to performing ultrasonic wave transmission control in the ultrasonic element 11, the ultrasonic control unit 21 amplifies the reflected wave received by the ultrasonic element 11 and converts it into a digital signal to obtain reflected wave data. Is also performed. The reflected wave data is stored in the storage unit 23.
  • the data input unit 22 inputs an alarm urine volume and other data described later as input data. These input data are stored in the storage unit 23.
  • the calculation unit 24 compares the urine volume in the bladder with a predetermined first threshold value and a second threshold value, which will be described later, and a urine volume calculation that calculates the urine volume in the bladder based on the reflected wave data. Part 24b.
  • the urine volume in the bladder calculated by the urine volume calculation unit 24 b is stored in the storage unit 23.
  • the alarm unit 26 compares the urine volume in the bladder calculated by the urine volume calculation unit 24b with an alarm urine volume that means a urine volume that prompts the subject to urinate, and compares the urine volume in the bladder. When the amount of urine is equal to or greater than the alarm urine amount, an alarm is transmitted. This alarm urine volume corresponds to the second threshold value.
  • the alarm may be transmitted by sound, screen, or vibration, but is not limited thereto, and any alarm can be used as long as the alarm can be transmitted to the person to be measured.
  • the display unit 27 displays various data relating to urine volume measurement such as alarm urine volume and urine volume in the bladder, and displays the urine volume in a time-series graph. This corresponds to the screen of the ultrasonic urine volume measuring instrument 1 as shown in FIG.
  • the display of N: 60 which shows a time interval is mentioned.
  • a specific example of the graph display displayed on this screen is a bar graph display in which the horizontal axis is time, the vertical axis is urine volume, and a plurality of urine volumes are arranged in the time axis direction.
  • the bar graph may be a line graph, for example.
  • the output unit 25 uses the urine volume measuring instrument 1 to output various data such as calculation data such as urine volume in the bladder calculated by the urine volume calculation unit 24b and input data input by the data input unit 22. Output to an external device connected to the. At this time, the connection between the ultrasonic urine volume measuring instrument 1 and the external device may be wired or wireless.
  • the ultrasonic wave transmitted from the ultrasonic element 11 is reflected at the boundary between tissues. Therefore, the ultrasonic wave transmitted from the ultrasonic element 11 toward the bladder is reflected by the front wall and the rear wall of the bladder, and the reflected wave is received by the ultrasonic element 11.
  • FIG. 4 is a schematic diagram of the waveform of the reflected wave received by each ultrasonic element 11.
  • the schematic diagram is represented by a graph with the vertical axis representing the reflection intensity and the horizontal axis representing the time from transmission.
  • the peak intensity of the reflected wave from the rear wall of the waveform received by the i-th ultrasonic element 11 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).
  • PDj ⁇ Pi ⁇ Di (1)
  • EU PD ⁇ R (2)
  • PDj is a measurement index value
  • EU is a calculated urine volume in the bladder
  • PD is an average index value that will be described in detail later
  • R is a coefficient determined corresponding to individual differences based on the anatomical structure and the posture being measured. Indicates.
  • j of PDj means the order of ultrasonic waves transmitted at a predetermined transmission cycle to be described later, and is an integer from 1 to 10 here.
  • i in Pi and Di means numbers assigned to the plurality of ultrasonic elements 11 provided in the ultrasonic probe 10, and is an integer from 1 to 4 here.
  • the urine volume calculation unit 24b calculates the urine volume in the bladder once every certain measurement cycle, for example, once every minute. Further, the ultrasonic element 11 emits ultrasonic waves every fixed transmission cycle, for example, once every 0.1 second, for a total of 10 times (one second), in order to calculate the urine volume in one measurement cycle. send.
  • the number of transmissions in one measurement is, for example, 10 times in this way, but is not limited thereto. Further, the number of transmissions may be changed for each measurement according to the body movement of the measurement subject at the time of measurement.
  • ten measurement index values PDj can be obtained in one measurement cycle.
  • an average index value PD can be obtained, and by multiplying the average index value PD by a coefficient R,
  • the urine volume EU in the bladder in each measurement cycle can be calculated.
  • the urine volume EU calculated in this way is stored in the storage unit 23 in time series.
  • the ultrasonic measurement cycle is made as short as possible. Although it is desirable to measure, there is a problem that power consumption increases. On the other hand, there is a case where uniform data is not necessarily required for the entire period of measuring the urine volume.
  • a predetermined second threshold value alarm urine volume
  • the measured urine volume is greater than the alarm urine volume.
  • the predetermined first threshold value is a value for determining whether or not the urine volume in the bladder is just before the urine volume reaches the alarm urine volume.
  • the pre-alarm urine volume is input by the data input unit 22 or calculated based on the alarm urine volume.
  • the pre-alarm urine volume set in this way is stored in the storage unit 23.
  • the comparison unit 24a compares the urine volume in the bladder calculated by the urine volume calculation unit 24b with the pre-alarm urine volume. If the urine volume in the bladder is less than the pre-alarm urine volume, it is determined that the urine volume in the bladder is not immediately before reaching the alarm urine volume, and the predetermined first time is reached without shortening the measurement cycle. Measure urine volume in the bladder at intervals. In the present embodiment, the first time interval at this time is 1 minute as shown in FIG. On the other hand, if the urine volume in the bladder is greater than or equal to the pre-alarm urine volume, it is determined that the urine volume in the bladder is immediately before reaching the alarm urine volume, and the measurement cycle is shortened to obtain a predetermined first volume. The urine volume in the bladder is measured at two time intervals. In the present embodiment, the second time interval at this time is 10 seconds.
  • the ultrasonic control unit 21 controls the ultrasonic wave transmitted from the ultrasonic element 11 so that the urine volume in the bladder can be measured every measurement cycle. That is, when the urine volume in the bladder is less than the pre-alarm urine volume, ultrasonic waves are transmitted from the ultrasonic element 11 at a predetermined first time interval. In addition, when the urine volume in the bladder is equal to or greater than the pre-alarm urine volume, the ultrasonic element at a predetermined second time interval shorter than the first time interval until at least the alarm urine volume is reached. 11 transmits ultrasonic waves.
  • the display unit 27 displays the pre-alarm urine volume stored in the storage unit 23 on the bar graph.
  • the measurement cycle differs depending on whether the urine volume in the bladder is less than the pre-alarm urine volume or more than the pre-alarm urine volume, but the display interval of the bar graph is the first time interval.
  • the interval is adjusted to Therefore, when the measurement cycle is the first time interval, it is possible to display all measured urine volumes in the bladder as a bar graph, but when the measurement cycle is the second time interval.
  • the data for each display interval is extracted from the urine volume in the bladder stored in the storage unit 23 and displayed on the bar graph.
  • a method for extracting this data there are a method for extracting the maximum value of the urine volume in the bladder calculated during the display interval, a method for calculating an average value, and the like.
  • the alarm urine volume is input to the data input unit 22 by the measurement subject or the like (step S10).
  • the pre-alarm urine volume is set (step S11).
  • the pre-alarm urine volume may be input by the data input unit 22 or may be calculated by multiplying the alarm urine volume by a predetermined constant.
  • the ultrasonic element 11 transmits an ultrasonic wave toward the measurement subject's bladder and receives the reflected wave, and the received reflected wave is converted into reflected wave data by the ultrasonic control unit 21.
  • the urine volume calculation unit 24b calculates the urine volume in the bladder based on the reflected wave data, whereby the urine volume in the bladder is measured (step S12).
  • the measurement period of the urine volume in the bladder at this time is a first time interval (1 minute interval).
  • the measured urine volume in the bladder is displayed on the display unit 27, output to the output unit 25, or stored in the storage unit 23.
  • the comparison unit 24a compares the calculated urine volume in the bladder with the pre-alarm urine volume (step S13). If the measured urine volume in the bladder is less than the pre-alarm urine volume, the process returns to step S12, and control is performed to continuously transmit ultrasonic waves to the bladder at the first time interval. Therefore, the ultrasonic element 11 transmits ultrasonic waves to the bladder at the first time interval and measures the urine volume in the bladder until the urine volume in the bladder becomes equal to or greater than the pre-alarm urine volume.
  • step S13 if the measured urine volume in the bladder is equal to or greater than the pre-alarm urine volume, it is immediately before the urine volume in the bladder reaches the alarm urine volume.
  • the ultrasonic element 11 transmits ultrasonic waves to the bladder and receives reflected waves from the bladder at the second time interval. Further, the conversion to the reflected wave data in the ultrasonic control unit 21 and the calculation of the urine volume in the bladder in the urine volume calculation unit 24b are performed in the same manner as in step S12 (step S14).
  • the measured urine volume in the bladder is compared with the alarm urine volume in the comparison unit 24a (step S15). If the urine volume in the bladder is less than the alarm urine volume, the process returns to step S14, and control is performed to continuously transmit ultrasonic waves to the bladder at the second time interval to measure the urine volume in the bladder. If the urine volume in the bladder is greater than or equal to the alarm urine volume, an alarm is transmitted by the alarm unit 26 (step S16).
  • the measurement cycle is changed according to the calculated urine volume in the bladder. Specifically, when it is determined that the urine volume in the bladder is equal to or more than a predetermined first threshold value and immediately before reaching the alarm urine volume, the urine in the bladder is reduced by shortening the measurement cycle. The amount can be calculated more accurately. On the other hand, since the urine volume in the bladder is less than the predetermined first threshold value, when it is determined that it is not just before reaching the alarm urine volume, the ultrasonic urine volume measuring instrument 1 is set by lengthening the measurement cycle. Power consumption can be reduced.
  • the output unit 25, the alarm unit 26, the display unit 27, the data input unit 22 and the like in the control unit 20 can be configured by separate information terminals.
  • the storage unit 23 may be provided in the information terminal, and the measurement data may be transmitted and received between the part that performs ultrasonic measurement by WiFi, Bluetooth, or the like.

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Abstract

[Problem] To be able to measure urine volume in the bladder and temporal changes thereof with high precision in a necessary period that corresponds to the urine volume and to limit electric power consumption. [Solution] Ultrasonic waves are transmitted toward the bladder of a person being measured with a specified measurement period. Reflected waves from the bladder wall surfaces are received and the urine volume inside the bladder is calculated for each measurement period on the basis of said reflected waves. When the calculated urine volume inside the bladder is at least a pre-alarm urine volume, the measurement period is shortened.

Description

超音波尿量測定器及びそれを用いた尿量の測定方法Ultrasonic urine volume measuring device and urine volume measuring method using the same
　本発明は、超音波を利用することで膀胱内の尿量を測定する超音波尿量測定器及びそれを用いた尿量の測定方法に関するものである。 The present invention relates to an ultrasonic urine volume measuring device that measures the amount of urine in the bladder by using ultrasonic waves, and a urine volume measuring method using the same.
　従来から、膀胱内の尿量を超音波を用いて測定する測定器としては、例えば特許文献１に記載されているように、膀胱の前壁からの反射波と後壁からの反射波に基づいて時系列的に膀胱内の尿量を測定するものが知られている。このような超音波尿量測定器において、より精度の高い膀胱内の尿量及びその時間的変化のデータを取得するためには、超音波の測定周期をできるだけ短くして測定をすることが望ましいが、消費電力が増大するという問題がある。一方で、尿量を測定する期間の必ずしも全期間において均一なデータを必要としない場合もある。
特許第４６７７６１５号公報 Conventionally, as a measuring instrument for measuring the amount of urine in the bladder using ultrasound, for example, as described in Patent Document 1, based on the reflected wave from the front wall of the bladder and the reflected wave from the rear wall A method for measuring urine volume in the bladder in time series is known. In such an ultrasonic urine volume measuring device, in order to obtain more accurate data on the urine volume in the bladder and its temporal change, it is desirable to perform measurement with the ultrasonic measurement cycle as short as possible. However, there is a problem that power consumption increases. On the other hand, there is a case where uniform data is not necessarily required for the entire period of measuring the urine volume.
Japanese Patent No. 4767615
　如上に鑑みて、本発明の技術的課題は、膀胱内の尿量及びその時間的変化を尿量に応じた必要な期間において高精度に測定することができ、しかも消費電力を抑えることが可能な超音波尿量測定器及び超音波を用いた尿量の測定方法を提供することにある。 In view of the above, the technical problem of the present invention is that the urine volume in the bladder and its temporal change can be measured with high accuracy in a necessary period according to the urine volume, and the power consumption can be suppressed. An ultrasonic urine volume measuring device and a method for measuring urine volume using ultrasonic waves are provided.
　このような課題を解決するため、本発明によれば被測定者の膀胱に向けて所定の測定周期で超音波を発信し、前記膀胱壁面からの反射波を受信する超音波素子と、前記反射波に基づいて膀胱内の尿量を前記測定周期毎に算出する演算部とを備える超音波尿量測定器において、該超音波尿量測定器は、算出された膀胱内の尿量に応じて前記測定周期を変更する超音波制御部を有することを特徴とする。 In order to solve such a problem, according to the present invention, an ultrasonic element that transmits an ultrasonic wave toward a measurement subject's bladder at a predetermined measurement period and receives a reflected wave from the bladder wall surface, and the reflection An ultrasonic urine volume measuring device including a calculation unit that calculates the urine volume in the bladder based on the wave for each measurement period, the ultrasonic urine volume measuring device according to the calculated urine volume in the bladder It has an ultrasonic control part which changes the measurement cycle.
　また、前記演算部は、算出される膀胱内の尿量と所定の第１閾値とを比較する比較部を有し、前記超音波制御部は、前記比較部において算出された膀胱内の尿量が前記第１閾値以上である場合に、前記超音波の測定周期を短くすることが好ましい。
　この場合において、前記比較部は、算出される膀胱内の尿量と前記第１閾値より大きい所定の第２閾値とをさらに比較するものであり、前記超音波尿量測定器は、前記比較部において算出された膀胱内の尿量が前記所定の第２閾値以上である場合に、アラームを発信するアラーム部を有することが望ましい。 The calculation unit includes a comparison unit that compares the calculated urine volume in the bladder with a predetermined first threshold, and the ultrasonic control unit calculates the urine volume in the bladder calculated by the comparison unit. Is shorter than the first threshold, it is preferable to shorten the ultrasonic measurement period.
In this case, the comparison unit further compares the calculated amount of urine in the bladder with a predetermined second threshold value that is greater than the first threshold value, and the ultrasonic urine volume measuring device includes the comparison unit. It is desirable to have an alarm unit for transmitting an alarm when the urine volume in the bladder calculated in step S is greater than or equal to the predetermined second threshold value.
　また、本発明に係る尿量の測定方法によれば、被測定者の膀胱に向けて所定の測定周期で超音波を発信し、前記膀胱壁面からの反射波を受信し該反射波に基づいて膀胱内の尿量を前記測定周期毎に算出する尿量の測定方法であって、算出された前記膀胱内の尿量に応じて超音波の測定周期を変更することを特徴とする。 Further, according to the method for measuring urine volume according to the present invention, ultrasonic waves are transmitted to the measurement subject's bladder at a predetermined measurement cycle, and a reflected wave from the bladder wall surface is received and based on the reflected wave. A method for measuring urine volume, wherein the urine volume in the bladder is calculated for each measurement cycle, wherein the ultrasonic measurement cycle is changed according to the calculated urine volume in the bladder.
　また、算出された前記膀胱内の尿量が所定の第１閾値以上である場合に、前記測定周期を短くすることが好ましい。
　この場合において、算出された前記膀胱内の尿量が前記第１閾値よりも大きい所定の第２閾値以上である場合に、アラームを発信することが望ましい。 In addition, when the calculated urine volume in the bladder is equal to or greater than a predetermined first threshold, it is preferable to shorten the measurement cycle.
In this case, it is desirable to issue an alarm when the calculated urine volume in the bladder is equal to or greater than a predetermined second threshold value that is greater than the first threshold value.
　本発明の超音波尿量測定器によれば、算出された膀胱内の尿量に応じて前記超音波素子から発信される超音波の測定周期を変更する超音波制御部を有するため、膀胱内の尿量及びその時間的変化を尿量に応じて必要な期間において高精度で測定することができ、しかも消費電力を抑えることができる。 According to the ultrasonic urine volume measuring device of the present invention, the ultrasonic urine volume measuring instrument has an ultrasonic control unit that changes the measurement period of the ultrasonic wave transmitted from the ultrasonic element according to the calculated urine volume in the bladder. Urine volume and its temporal change can be measured with high accuracy in a necessary period according to the urine volume, and power consumption can be suppressed.
本発明の実施形態におけるブロック図である。It is a block diagram in an embodiment of the present invention. 超音波素子を被測定者に取り付けた状態を示す概略図である。It is the schematic which shows the state which attached the ultrasonic element to the to-be-measured person. 膀胱内の尿量を表示した表示部の概略図である。It is the schematic of the display part which displayed the urine volume in the bladder. 超音波素子で受信する反射波の波形の概略図である。It is the schematic of the waveform of the reflected wave received with an ultrasonic element. 超音波の発信周期と測定周期を説明するためのタイムチャートである。It is a time chart for demonstrating the transmission cycle and measurement cycle of an ultrasonic wave. 本発明の実施形態を説明するためのフローチャートである。It is a flowchart for demonstrating embodiment of this invention.
　以下に、図１～図３に基づいて本発明の第１実施形態における超音波尿量測定器の構成について説明する。図１に示すように、超音波尿量測定器１は、超音波プローブ１０と制御部２０とから主に構成されている。 Hereinafter, the configuration of the ultrasonic urine volume measuring apparatus according to the first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the ultrasonic urine volume measuring device 1 mainly includes an ultrasonic probe 10 and a control unit 20.
図２に示すように、前記超音波プローブ１０には、膀胱に対して上下に開く扇状に超音波を発信して膀胱からのその反射波を受信することができるように、複数（図中４個）の超音波素子１１が直線状に一列に並べて設けられている。具体的には、その下端部が恥骨上端部に対応する腹部表面上に位置して、前記複数の超音波素子１１が膀胱の上下方向に沿って並ぶように、超音波ゼリー等の超音波伝達媒体を介して固定される。 As shown in FIG. 2, a plurality of ultrasonic probes 10 (4 in the figure) are provided so that ultrasonic waves can be transmitted in a fan shape that opens up and down with respect to the bladder and the reflected waves from the bladder can be received. ) Ultrasonic elements 11 are arranged in a straight line. Specifically, ultrasonic transmission such as ultrasonic jelly is performed such that the lower end portion thereof is located on the abdominal surface corresponding to the upper end portion of the pubic bone and the plurality of ultrasonic elements 11 are arranged along the vertical direction of the bladder. It is fixed via a medium.
図１に示すように、前記制御部２０は、大きく分けて、超音波素子１１による超音波及びその反射波の送受信を制御する超音波制御部２１と、被測定者や医師等の医療従事者が入力データを入力するデータ入力部２２と、尿量に関する種々のデータを記憶する記憶部２３と、前記超音波制御部２１からの反射波データ等に基づいて尿量に関する種々の演算を行う演算部２４と、該演算部２４で演算された演算データや入力データ等を出力するための出力部２５と、前記演算データや入力データに基づいてアラームを発信するためのアラーム部２６と、前記演算データや入力データ等を表示するための表示部２７とを備えている。 As shown in FIG. 1, the control unit 20 is roughly divided into an ultrasonic control unit 21 that controls transmission and reception of ultrasonic waves and their reflected waves by the ultrasonic element 11, and a medical worker such as a measurement subject or a doctor. Is a data input unit 22 for inputting input data, a storage unit 23 for storing various data related to urine volume, and a calculation for performing various calculations related to urine volume based on reflected wave data from the ultrasonic control unit 21. Unit 24, an output unit 25 for outputting calculation data and input data calculated by the calculation unit 24, an alarm unit 26 for transmitting an alarm based on the calculation data and input data, and the calculation And a display unit 27 for displaying data, input data, and the like.
　前記超音波制御部２１は、超音波素子１１における超音波の発信制御を行う他に、該超音波素子１１で受信した反射波を増幅すると共にデジタル信号に変換して反射波データとする受信制御をも行うものである。この反射波データは前記記憶部２３で記憶される。 In addition to performing ultrasonic wave transmission control in the ultrasonic element 11, the ultrasonic control unit 21 amplifies the reflected wave received by the ultrasonic element 11 and converts it into a digital signal to obtain reflected wave data. Is also performed. The reflected wave data is stored in the storage unit 23.
　前記データ入力部２２は、後述するアラーム尿量やその他のデータを入力データとして入力するものである。これらの入力データは前記記憶部２３に記憶される。 The data input unit 22 inputs an alarm urine volume and other data described later as input data. These input data are stored in the storage unit 23.
　前記演算部２４は、膀胱内の尿量と後述する所定の第１閾値及び第２閾値とを比較する比較部２４ａと、前記反射波データに基づいて膀胱内の尿量を算出する尿量算出部２４ｂとを有している。該尿量算出部２４ｂで算出された膀胱内の尿量は前記記憶部２３に記憶される。 The calculation unit 24 compares the urine volume in the bladder with a predetermined first threshold value and a second threshold value, which will be described later, and a urine volume calculation that calculates the urine volume in the bladder based on the reflected wave data. Part 24b. The urine volume in the bladder calculated by the urine volume calculation unit 24 b is stored in the storage unit 23.
　前記アラーム部２６は、前記尿量算出部２４ｂで演算された膀胱内の尿量と、被測定者に排尿を促す尿量を意味するアラーム尿量とを比較部２４ａで比較し、前記膀胱内の尿量が前記アラーム尿量以上である場合に、アラームを発信するものである。また、このアラーム尿量が前記第２閾値に相当する。アラームとしては、音、画面、又は振動による発信があるが、これに限られず、被測定者等にアラームを伝達することのできるものであればよい。 The alarm unit 26 compares the urine volume in the bladder calculated by the urine volume calculation unit 24b with an alarm urine volume that means a urine volume that prompts the subject to urinate, and compares the urine volume in the bladder. When the amount of urine is equal to or greater than the alarm urine amount, an alarm is transmitted. This alarm urine volume corresponds to the second threshold value. The alarm may be transmitted by sound, screen, or vibration, but is not limited thereto, and any alarm can be used as long as the alarm can be transmitted to the person to be measured.
前記表示部２７は、アラーム尿量、膀胱内の尿量等の尿量測定に関する種々のデータを表示したり、前記尿量を時系列的にグラフ表示したりするものであり、具体的には図３に示すような超音波尿量測定器１の画面が該当する。この画面に表示されるデータの具体例として、アラーム尿量を示すＡ：３５０、後述する第１の時間間隔を示すＮ：６０、最新の膀胱内の尿量を示す４６、後述する第２の時間間隔を示すＮ：６０の表示が挙げられる。また、この画面に表示されるグラフ表示の具体例として、横軸を時間、縦軸を尿量とし、複数の尿量を時間軸方向に並べた棒グラフの表示が挙げられる。なお、棒グラフは、例えば折れ線グラフによるものであってもよい。 The display unit 27 displays various data relating to urine volume measurement such as alarm urine volume and urine volume in the bladder, and displays the urine volume in a time-series graph. This corresponds to the screen of the ultrasonic urine volume measuring instrument 1 as shown in FIG. As specific examples of the data displayed on this screen, A: 350 indicating the alarm urine volume, N: 60 indicating the first time interval described later, 46 indicating the latest urine volume in the bladder, and the second described later. The display of N: 60 which shows a time interval is mentioned. A specific example of the graph display displayed on this screen is a bar graph display in which the horizontal axis is time, the vertical axis is urine volume, and a plurality of urine volumes are arranged in the time axis direction. The bar graph may be a line graph, for example.
　前記出力部２５は、前記尿量算出部２４ｂで演算された膀胱内の尿量等の演算データや前記データ入力部２２で入力された入力データ等の種々のデータを超音波尿量測定器１と接続する外部機器に出力するものである。このとき、超音波尿量測定器１と外部機器との接続は、有線、無線を問わない。 The output unit 25 uses the urine volume measuring instrument 1 to output various data such as calculation data such as urine volume in the bladder calculated by the urine volume calculation unit 24b and input data input by the data input unit 22. Output to an external device connected to the. At this time, the connection between the ultrasonic urine volume measuring instrument 1 and the external device may be wired or wireless.
　次に、図４，５に基づいて、本実施形態で用いられている膀胱内の尿量の算出方法について説明する。超音波素子１１から発信された超音波は組織間の境界において反射される。そのため、超音波素子１１から膀胱に向けて発信された超音波は膀胱の前壁と後壁とで反射し、この反射波が超音波素子１１で受信される。 Next, a method for calculating the urine volume in the bladder used in the present embodiment will be described with reference to FIGS. The ultrasonic wave transmitted from the ultrasonic element 11 is reflected at the boundary between tissues. Therefore, the ultrasonic wave transmitted from the ultrasonic element 11 toward the bladder is reflected by the front wall and the rear wall of the bladder, and the reflected wave is received by the ultrasonic element 11.
　図４は、各超音波素子１１にて受信される反射波の波形の概略図である。該概略図は、縦軸を反射強度、横軸を発信からの時間とした図で表される。ここで、ｉ番目の超音波素子１１にて受信した波形のうち後壁からの反射波のピーク強度をＰｉ、前壁及び後壁からの反射波強度のピーク間距離をＤｉとすると、膀胱内の蓄尿量ＥＵは、以下の式（１）、（２）に基づいて算出することができる。
　ＰＤｊ＝ΣＰｉ×Ｄｉ　　　　　　　　　　　　　　　　　　　　　　　　・・（１）
　ＥＵ＝ＰＤ×Ｒ　　　　　　　　　　　　　　　　　　　　　　　　　　　・・（２）
　ここで、ＰＤｊは測定指標値、ＥＵは算出される膀胱内の尿量、ＰＤは後に詳述する平均指標値、Ｒは解剖構造に基づく個人差や測定中の姿勢に対応して定められる係数を示す。また、ＰＤｊのｊは後述する所定の発信周期で発信される超音波の順番を意味しており、ここでは１から１０までの整数となっている。また、Ｐｉ，Ｄｉのｉは前記超音波プローブ１０に設けられた複数の超音波素子１１に付された番号を意味しており、ここでは１から４までの整数となっている。 FIG. 4 is a schematic diagram of the waveform of the reflected wave received by each ultrasonic element 11. The schematic diagram is represented by a graph 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 11 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).
PDj = ΣPi × Di (1)
EU = PD × R (2)
Here, PDj is a measurement index value, EU is a calculated urine volume in the bladder, PD is an average index value that will be described in detail later, and R is a coefficient determined corresponding to individual differences based on the anatomical structure and the posture being measured. Indicates. Moreover, j of PDj means the order of ultrasonic waves transmitted at a predetermined transmission cycle to be described later, and is an integer from 1 to 10 here. Further, i in Pi and Di means numbers assigned to the plurality of ultrasonic elements 11 provided in the ultrasonic probe 10, and is an integer from 1 to 4 here.
　すなわち、図５に示すように、前記尿量算出部２４ｂでは、一定の測定周期毎、例えば１分毎に１回、膀胱内の尿量を算出する。また、前記超音波素子１１は、この１回の測定周期における尿量を算出するために、超音波を一定の発信周期毎、例えば０．１秒毎に１回、計１０回（一秒間）発信する。１回の測定における発信回数はこのように例えば１０回であるが、これに限られない。また、測定時の被測定者の体動などに応じて、測定毎に発信回数を変えてもよい。従って、各発信周期における各測定指標値ＰＤｊは、各超音波素子１１で受信される反射波の反射強度Ｐｉとピーク間の距離Ｄｉとの積をｉ＝１～４につき加算することにより得ることができ、その結果、１回の測定周期において１０個の測定指標値ＰＤｊを得ることができる。そして、これら測定指標値ＰＤｊ（ｊ＝１～１０）に対して適宜の平均化処理を行うことで、平均指標値ＰＤを得ることができ、該平均指標値ＰＤに係数Ｒを乗ずることで、各測定周期における膀胱内の尿量ＥＵを算出することができる。なお、このようにして算出された尿量ＥＵは、時系列的に前記記憶部２３に記憶される。 That is, as shown in FIG. 5, the urine volume calculation unit 24b calculates the urine volume in the bladder once every certain measurement cycle, for example, once every minute. Further, the ultrasonic element 11 emits ultrasonic waves every fixed transmission cycle, for example, once every 0.1 second, for a total of 10 times (one second), in order to calculate the urine volume in one measurement cycle. send. Thus, the number of transmissions in one measurement is, for example, 10 times in this way, but is not limited thereto. Further, the number of transmissions may be changed for each measurement according to the body movement of the measurement subject at the time of measurement. Therefore, each measurement index value PDj in each transmission period is obtained by adding the product of the reflection intensity Pi of the reflected wave received by each ultrasonic element 11 and the distance Di between the peaks for i = 1 to 4. As a result, ten measurement index values PDj can be obtained in one measurement cycle. Then, by performing an appropriate averaging process on these measurement index values PDj (j = 1 to 10), an average index value PD can be obtained, and by multiplying the average index value PD by a coefficient R, The urine volume EU in the bladder in each measurement cycle can be calculated. The urine volume EU calculated in this way is stored in the storage unit 23 in time series.
　以上の算出方法に基づいて、前記超音波尿量測定器１においてより精度の高い膀胱内の尿量及びその時間的変化のデータを取得するためには、超音波の測定周期をできるだけ短くして測定することが望ましいが、消費電力が増大するという問題がある。一方で、尿量を測定する期間の必ずしも全期間において均一なデータを必要としない場合もある。以下に、そのような場合の一例として、膀胱内の尿量が、排尿を促すべき所定の第２閾値（アラーム尿量）に近づいたとき、すなわち測定された尿量が前記アラーム尿量よりも小さい所定の第１閾値（プレアラーム尿量）に達したときに、アラーム尿量に至るまでの期間においてより正確な尿量を取得するため、尿量の測定周期を短縮する場合を例に挙げて説明する。 Based on the above calculation method, in order to obtain more accurate data on the urine volume in the bladder and its temporal change in the ultrasonic urine volume measuring instrument 1, the ultrasonic measurement cycle is made as short as possible. Although it is desirable to measure, there is a problem that power consumption increases. On the other hand, there is a case where uniform data is not necessarily required for the entire period of measuring the urine volume. In the following, as an example of such a case, when the urine volume in the bladder approaches a predetermined second threshold value (alarm urine volume) that should encourage urination, that is, the measured urine volume is greater than the alarm urine volume. Take the example of shortening the urine volume measurement cycle in order to obtain a more accurate urine volume in the period up to the alarm urine volume when a small predetermined first threshold value (pre-alarm urine volume) is reached. I will explain.
　まず、前記測定周期の変更の基準となる所定の第１閾値について説明する。前述したように、前記第１閾値は、膀胱の尿量がアラーム尿量に到達する直前であるか否かを判断するための値である。本実施形態では、該プレアラーム尿量は前記データ入力部２２で入力され、又は前記アラーム尿量に基づいて算出される。このようにして設定されたプレアラーム尿量が記憶部２３に記憶される。 First, the predetermined first threshold value that serves as a reference for changing the measurement cycle will be described. As described above, the first threshold value is a value for determining whether or not the urine volume in the bladder is just before the urine volume reaches the alarm urine volume. In the present embodiment, the pre-alarm urine volume is input by the data input unit 22 or calculated based on the alarm urine volume. The pre-alarm urine volume set in this way is stored in the storage unit 23.
　前記比較部２４ａでは、前記尿量算出部２４ｂで算出された膀胱内の尿量とプレアラーム尿量が比較される。前記膀胱内の尿量が前記プレアラーム尿量未満である場合には、膀胱の尿量はアラーム尿量に到達する直前ではないと判断され、測定周期を短くすることなく所定の第１の時間間隔で膀胱内の尿量を測定する。本実施形態では、このときの第１の時間間隔は図５に示すように１分である。一方で、前記膀胱内の尿量が前記プレアラーム尿量以上である場合には、膀胱の尿量はアラーム尿量に到達する直前であると判断され、前記測定周期を短くして所定の第２の時間間隔で膀胱内の尿量を測定する。本実施形態では、このときの第２の時間間隔は１０秒である。 The comparison unit 24a compares the urine volume in the bladder calculated by the urine volume calculation unit 24b with the pre-alarm urine volume. If the urine volume in the bladder is less than the pre-alarm urine volume, it is determined that the urine volume in the bladder is not immediately before reaching the alarm urine volume, and the predetermined first time is reached without shortening the measurement cycle. Measure urine volume in the bladder at intervals. In the present embodiment, the first time interval at this time is 1 minute as shown in FIG. On the other hand, if the urine volume in the bladder is greater than or equal to the pre-alarm urine volume, it is determined that the urine volume in the bladder is immediately before reaching the alarm urine volume, and the measurement cycle is shortened to obtain a predetermined first volume. The urine volume in the bladder is measured at two time intervals. In the present embodiment, the second time interval at this time is 10 seconds.
　前記超音波制御部２１は、前記測定周期毎に膀胱内の尿量を測定することができるように、超音波素子１１から発信される超音波を制御する。すなわち、膀胱内の尿量がプレアラーム尿量未満であるときは、所定の第１の時間間隔で超音波素子１１から超音波が発信される。また、膀胱内の尿量がプレアラーム尿量以上であるときは、少なくとも前記アラーム尿量に到達するまでの間、前記第１の時間間隔よりも短い所定の第２の時間間隔で超音波素子１１から超音波が発信される。 The ultrasonic control unit 21 controls the ultrasonic wave transmitted from the ultrasonic element 11 so that the urine volume in the bladder can be measured every measurement cycle. That is, when the urine volume in the bladder is less than the pre-alarm urine volume, ultrasonic waves are transmitted from the ultrasonic element 11 at a predetermined first time interval. In addition, when the urine volume in the bladder is equal to or greater than the pre-alarm urine volume, the ultrasonic element at a predetermined second time interval shorter than the first time interval until at least the alarm urine volume is reached. 11 transmits ultrasonic waves.
　前記表示部２７は、前記記憶部２３に記憶されたプレアラーム尿量を前記棒グラフ上に表示する。このとき、前記測定周期は、該膀胱内の尿量がプレアラーム尿量未満である場合とプレアラーム尿量以上である場合とで異なるが、前記棒グラフの表示間隔は、前記第１の時間間隔に合わせた間隔となる。そのため、測定周期が第１の時間間隔である場合には、測定された全ての膀胱内の尿量を棒グラフとして表示することが可能であるが、測定周期が第２の時間間隔である場合には、プレアラーム尿量以上となる全ての膀胱内の尿量を棒グラフとして表示することはできない。このときは、記憶部２３に記憶されている膀胱内の尿量の中から前記表示間隔毎のデータが抽出されて、棒グラフ上に表示される。このデータの抽出方法としては、前記表示間隔の中で算出された膀胱内の尿量の最大値を抽出する方法や、平均値を算出する方法等がある。 The display unit 27 displays the pre-alarm urine volume stored in the storage unit 23 on the bar graph. At this time, the measurement cycle differs depending on whether the urine volume in the bladder is less than the pre-alarm urine volume or more than the pre-alarm urine volume, but the display interval of the bar graph is the first time interval. The interval is adjusted to Therefore, when the measurement cycle is the first time interval, it is possible to display all measured urine volumes in the bladder as a bar graph, but when the measurement cycle is the second time interval. Cannot display as a bar graph the urine volume in the bladder that is greater than or equal to the pre-alarm urine volume. At this time, the data for each display interval is extracted from the urine volume in the bladder stored in the storage unit 23 and displayed on the bar graph. As a method for extracting this data, there are a method for extracting the maximum value of the urine volume in the bladder calculated during the display interval, a method for calculating an average value, and the like.
　次に、図６に基づいて、第１の実施形態における超音波尿量測定器１を用いた尿量の測定方法について説明する。まず、アラーム尿量が被測定者等によってデータ入力部２２に入力される（ステップＳ１０）。次に、プレアラーム尿量が設定される（ステップＳ１１）。このとき、プレアラーム尿量は、前記データ入力部２２によって入力されるものであっても、アラーム尿量に所定の定数を乗ずることで算出されるものであってもよい。 Next, a method for measuring urine volume using the ultrasonic urine volume measuring device 1 in the first embodiment will be described with reference to FIG. First, the alarm urine volume is input to the data input unit 22 by the measurement subject or the like (step S10). Next, the pre-alarm urine volume is set (step S11). At this time, the pre-alarm urine volume may be input by the data input unit 22 or may be calculated by multiplying the alarm urine volume by a predetermined constant.
　次に、前記超音波素子１１が被測定者の膀胱に向けて超音波を発信すると共にその反射波を受信し、受信した反射波が前記超音波制御部２１で反射波データに変換され、前記尿量算出部２４ｂがこの反射波データに基づいて膀胱内の尿量を算出することで、膀胱内の尿量が測定される（ステップＳ１２）。このときの前記膀胱内の尿量の測定周期は第１の時間間隔（１分間隔）である。そして、測定された膀胱内の尿量は、前記表示部２７に表示され、前記出力部２５に出力され、又は前記記憶部２３に記憶される。 Next, the ultrasonic element 11 transmits an ultrasonic wave toward the measurement subject's bladder and receives the reflected wave, and the received reflected wave is converted into reflected wave data by the ultrasonic control unit 21. The urine volume calculation unit 24b calculates the urine volume in the bladder based on the reflected wave data, whereby the urine volume in the bladder is measured (step S12). The measurement period of the urine volume in the bladder at this time is a first time interval (1 minute interval). The measured urine volume in the bladder is displayed on the display unit 27, output to the output unit 25, or stored in the storage unit 23.
次に、前記比較部２４ａで、算出された膀胱内の尿量とプレアラーム尿量とが比較される（ステップＳ１３）。測定された膀胱内の尿量がプレアラーム尿量未満である場合には、ステップＳ１２に戻り、継続して第１の時間間隔で超音波を膀胱に発信する制御を行う。従って、超音波素子１１は、膀胱内の尿量がプレアラーム尿量以上となるまで、第１の時間間隔で超音波を膀胱に発信し、膀胱内の尿量を測定する。 Next, the comparison unit 24a compares the calculated urine volume in the bladder with the pre-alarm urine volume (step S13). If the measured urine volume in the bladder is less than the pre-alarm urine volume, the process returns to step S12, and control is performed to continuously transmit ultrasonic waves to the bladder at the first time interval. Therefore, the ultrasonic element 11 transmits ultrasonic waves to the bladder at the first time interval and measures the urine volume in the bladder until the urine volume in the bladder becomes equal to or greater than the pre-alarm urine volume.
また、ステップＳ１３において、測定された膀胱内の尿量がプレアラーム尿量以上である場合には、膀胱内の尿量がアラーム尿量に到達する直前であるため、前記超音波制御部２１が測定周期を第２の時間間隔（測定周期１０秒）に変更することで、前記超音波素子１１は第２の時間間隔にて超音波を膀胱に発信し、膀胱からの反射波を受信する。また、超音波制御部２１における反射波データへの変換、尿量算出部２４ｂにおける膀胱内の尿量の算出は、ステップＳ１２と同様にして行われる（ステップＳ１４）。 In step S13, if the measured urine volume in the bladder is equal to or greater than the pre-alarm urine volume, it is immediately before the urine volume in the bladder reaches the alarm urine volume. By changing the measurement cycle to the second time interval (measurement cycle 10 seconds), the ultrasonic element 11 transmits ultrasonic waves to the bladder and receives reflected waves from the bladder at the second time interval. Further, the conversion to the reflected wave data in the ultrasonic control unit 21 and the calculation of the urine volume in the bladder in the urine volume calculation unit 24b are performed in the same manner as in step S12 (step S14).
　次に、前記比較部２４ａで、測定された膀胱内の尿量とアラーム尿量とが比較される（ステップＳ１５）。膀胱内の尿量がアラーム尿量未満である場合には、ステップＳ１４に戻り、継続して第２の時間間隔で超音波を膀胱に発信し、膀胱内の尿量を測定する制御を行う。また、膀胱内の尿量がアラーム尿量以上である場合には、アラーム部２６でアラームが発信される（ステップＳ１６）。 Next, the measured urine volume in the bladder is compared with the alarm urine volume in the comparison unit 24a (step S15). If the urine volume in the bladder is less than the alarm urine volume, the process returns to step S14, and control is performed to continuously transmit ultrasonic waves to the bladder at the second time interval to measure the urine volume in the bladder. If the urine volume in the bladder is greater than or equal to the alarm urine volume, an alarm is transmitted by the alarm unit 26 (step S16).
　以上のように、本発明に係る実施形態では、算出された膀胱内の尿量に応じて前記測定周期が変更される。具体的には、膀胱内の尿量が所定の第１閾値以上となることで、前記アラーム尿量に到達する直前であると判断するときには、前記測定周期を短くすることで、膀胱内の尿量をより正確に算出することができる。一方で、膀胱内の尿量が所定の第１閾値未満であるため、前記アラーム尿量に到達する直前ではないと判断するときには、前記測定周期を長くすることで、超音波尿量測定器１の消費電力を抑えることができる。 As described above, in the embodiment according to the present invention, the measurement cycle is changed according to the calculated urine volume in the bladder. Specifically, when it is determined that the urine volume in the bladder is equal to or more than a predetermined first threshold value and immediately before reaching the alarm urine volume, the urine in the bladder is reduced by shortening the measurement cycle. The amount can be calculated more accurately. On the other hand, since the urine volume in the bladder is less than the predetermined first threshold value, when it is determined that it is not just before reaching the alarm urine volume, the ultrasonic urine volume measuring instrument 1 is set by lengthening the measurement cycle. Power consumption can be reduced.
　なお、本発明に係る実施形態における超音波尿量測定器は、超音波プローブ１０及び制御部２０の全ての要素が一体に形成されている必要はない。例えば、制御部２０における出力部２５、アラーム部２６、表示部２７、データ入力部２２などは、別体の情報端末で構成することもできる。この場合には、記憶部２３を情報端末にも設けておき、超音波測定を行う部分との間でＷｉｆｉやブルーツースなどにより測定データを送受信するように構成すればよい。 In the ultrasonic urine volume measuring device according to the embodiment of the present invention, it is not necessary that all elements of the ultrasonic probe 10 and the control unit 20 are integrally formed. For example, the output unit 25, the alarm unit 26, the display unit 27, the data input unit 22 and the like in the control unit 20 can be configured by separate information terminals. In this case, the storage unit 23 may be provided in the information terminal, and the measurement data may be transmitted and received between the part that performs ultrasonic measurement by WiFi, Bluetooth, or the like.
１　超音波尿量測定器
１１　超音波素子
２１　超音波制御部
２４　演算部
２４ａ　比較部
２６　アラーム部 DESCRIPTION OF SYMBOLS 1 Ultrasonic urine volume measuring device 11 Ultrasonic element 21 Ultrasonic control part 24 Calculation part 24a Comparison part 26 Alarm part

Claims (6)

  1. 　被測定者の膀胱に向けて所定の測定周期で超音波を発信し、前記膀胱壁面からの反射波を受信する超音波素子と、
    　前記反射波に基づいて膀胱内の尿量を前記測定周期毎に算出する演算部とを備える超音波尿量測定器において、
    　該超音波尿量測定器は、算出された膀胱内の尿量に応じて前記測定周期を変更する超音波制御部を有する、
    ことを特徴とする超音波尿量測定器。     An ultrasonic element that transmits ultrasonic waves at a predetermined measurement period toward the measurement subject's bladder and receives a reflected wave from the bladder wall;
    In an ultrasonic urine volume measuring device comprising a calculation unit that calculates the urine volume in the bladder for each measurement cycle based on the reflected wave,
    The ultrasonic urine volume measuring device has an ultrasonic control unit that changes the measurement cycle in accordance with the calculated urine volume in the bladder.
    An ultrasonic urine volume measuring device.
  2. 　前記演算部は、算出される膀胱内の尿量と所定の第１閾値とを比較する比較部を有し、
    　前記超音波制御部は、前記比較部において算出された膀胱内の尿量が前記第１閾値以上である場合に、前記超音波の測定周期を短くする、
    ことを特徴とする請求項１に記載の超音波尿量測定器。     The calculation unit includes a comparison unit that compares the calculated amount of urine in the bladder with a predetermined first threshold value,
    The ultrasonic control unit shortens the ultrasonic measurement cycle when the urine volume in the bladder calculated by the comparison unit is equal to or greater than the first threshold;
    The ultrasonic urine volume measuring device according to claim 1.
  3. 　前記比較部は、算出される膀胱内の尿量と前記第１閾値より大きい所定の第２閾値とをさらに比較するものであり、
    　前記超音波尿量測定器は、前記比較部において算出された膀胱内の尿量が前記所定の第２閾値以上である場合に、アラームを発信するアラーム部を有する、
    ことを特徴とする請求項２に記載の超音波尿量測定器。     The comparison unit further compares the calculated amount of urine in the bladder with a predetermined second threshold value greater than the first threshold value,
    The ultrasonic urine volume measuring device includes an alarm unit that issues an alarm when the urine volume in the bladder calculated by the comparison unit is equal to or greater than the predetermined second threshold value.
    The ultrasonic urine volume measuring device according to claim 2.
  4. 　被測定者の膀胱に向けて所定の測定周期で超音波を発信し、前記膀胱壁面からの反射波を受信し該反射波に基づいて膀胱内の尿量を前記測定周期毎に算出する尿量の測定方法であって、
    　算出された前記膀胱内の尿量に応じて超音波の測定周期を変更することを特徴とする尿量の測定方法。     Urine volume for transmitting ultrasonic waves to a measurement subject's bladder at a predetermined measurement cycle, receiving a reflected wave from the bladder wall surface, and calculating a urine volume in the bladder for each measurement cycle based on the reflected wave Measuring method,
    A method for measuring urine volume, wherein the ultrasonic measurement cycle is changed in accordance with the calculated urine volume in the bladder.
  5. 　算出された前記膀胱内の尿量が所定の第１閾値以上である場合に、前記測定周期を短くすることを特徴とする請求項４に記載の尿量の測定方法。 5. The method of measuring urine volume according to claim 4, wherein when the calculated urine volume in the bladder is equal to or greater than a predetermined first threshold, the measurement cycle is shortened.
  6. 　算出された前記膀胱内の尿量が前記第１閾値よりも大きい所定の第２閾値以上である場合に、アラームを発信することを特徴とする請求項５に記載の尿量の測定方法。 6. The method for measuring urine volume according to claim 5, wherein an alarm is issued when the calculated urine volume in the bladder is equal to or greater than a predetermined second threshold value that is greater than the first threshold value.
PCT/JP2014/072247 2014-08-26 2014-08-26 Ultrasound urine volume meter and urine volume measurement method using same WO2016030958A1 (en)

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TW104126879A TWI681759B (en) 2014-08-26 2015-08-18 Ultrasonic urine volume measuring device and method for creating and displaying urine volume management data using ultrasound volume measuring device
TW104126880A TWI681757B (en) 2014-08-26 2015-08-18 Ultrasonic urine volume analyzer
US14/835,777 US20160058411A1 (en) 2014-08-26 2015-08-26 Ultrasonic urine volume measuring instrument, urine volume management data generating method using ultrasonic urine volume measuring instrument, and bladder training method using ultrasonic urine volume measuring instrument
EP18167547.1A EP3366222A1 (en) 2014-08-26 2015-08-26 Ultrasonic urine volume measuring instrument
PCT/JP2015/004288 WO2016031245A1 (en) 2014-08-26 2015-08-26 Ultrasonic urine volume measuring instrument, and urine volume management data generating and displaying method using ultrasonic urine volume measuring instrument
CA2959112A CA2959112A1 (en) 2014-08-26 2015-08-26 Ultrasonic urine volume measuring instrument, and urine volume management data generating and displaying method using ultrasonic urine volume measuring instrument
EP15182516.3A EP2989989B1 (en) 2014-08-26 2015-08-26 Ultrasonic urine volume measuring instrument
KR1020177005414A KR20170066322A (en) 2014-08-26 2015-08-26 Ultrasonic urine volume measuring instrument, and urine volume management data generating and displaying method using ultrasonic urine volume measuring instrument
US14/835,782 US20160058412A1 (en) 2014-08-26 2015-08-26 Ultrasonic urine volume measuring instrument, and method of positioning ultrasound probe in ultrasonic urine volume measuring instrument
JP2015166663A JP5890931B1 (en) 2014-08-26 2015-08-26 Ultrasonic urine volume measuring device and urine volume management data creation and display method using ultrasonic urine volume measuring device
CN201580046286.XA CN107072634B (en) 2014-08-26 2015-08-26 Ultrasonic urine volume measuring device, and urine volume management data generating and displaying method using ultrasonic urine volume measuring device
EP15182524.7A EP2989985A1 (en) 2014-08-26 2015-08-26 Ultrasonic urine volume measuring instrument, and urine volume management data generating method using ultrasonic urine volume measuring instrument
JP2015166662A JP5890930B1 (en) 2014-08-26 2015-08-26 Ultrasonic urine volume measuring device and ultrasonic probe positioning method in ultrasonic urine volume measuring device
JP2016029638A JP6595365B2 (en) 2014-08-26 2016-02-19 Ultrasound urine volume measurement system
HK16110225.8A HK1221890A1 (en) 2014-08-26 2016-08-29 Ultrasonic urine volume measuring instrument, and urine volume management data generating method using ultrasonic urine volume measuring instrument
HK16110224.9A HK1221889A1 (en) 2014-08-26 2016-08-29 Ultrasonic urine volume measuring instrument
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Publication number Priority date Publication date Assignee Title
JPH07136167A (en) * 1992-10-26 1995-05-30 Agency Of Ind Science & Technol Micturition-alarming apparatus with irradiation angle controlling function
US6565512B1 (en) * 1998-03-13 2003-05-20 Srs Medical Systems, Inc. System for estimating bladder volume
JP2007508857A (en) * 2003-10-13 2007-04-12 ヴォルリネ イスラエル リミテッド Bladder measurement

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