WO2020197139A1 - Appareil de diagnostic ultrasonore portable et procédé pour déterminer son temps d'utilisation réel - Google Patents

Appareil de diagnostic ultrasonore portable et procédé pour déterminer son temps d'utilisation réel Download PDF

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Publication number
WO2020197139A1
WO2020197139A1 PCT/KR2020/003510 KR2020003510W WO2020197139A1 WO 2020197139 A1 WO2020197139 A1 WO 2020197139A1 KR 2020003510 W KR2020003510 W KR 2020003510W WO 2020197139 A1 WO2020197139 A1 WO 2020197139A1
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WO
WIPO (PCT)
Prior art keywords
ultrasound diagnosis
diagnosis apparatus
portable ultrasound
total energy
portable
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PCT/KR2020/003510
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English (en)
Korean (ko)
Inventor
정유찬
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주식회사 힐세리온
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Publication of WO2020197139A1 publication Critical patent/WO2020197139A1/fr

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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
    • A61B8/54—Control of the diagnostic device
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
    • A61B8/4477—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device using several separate ultrasound transducers or probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
    • A61B8/461—Displaying means of special interest
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/56—Details of data transmission or power supply

Definitions

  • the present invention relates to an ultrasound diagnosis apparatus, and more particularly, to a portable ultrasound diagnosis apparatus and a method for determining an actual use time thereof.
  • Ultrasound diagnosis apparatuses have non-invasive and non-destructive properties, and are thus widely used in medical fields to obtain information inside an object.
  • the ultrasound diagnosis system is very important in the medical field because it can provide a high-resolution image of a tissue inside an object to a doctor without the need for a surgical operation in which an object is directly cut and observed.
  • the ultrasound diagnosis apparatus is a system that irradiates an ultrasound signal from a body surface of a subject toward a target site in the body, and extracts information from the reflected ultrasound signal to obtain an image of a soft tissue or blood flow without invasiveness.
  • ultrasound diagnostic devices are compact, inexpensive, and display in real time compared to other imaging devices such as an X-ray examination device, a CT scanner (Computerized Tomography Scanner), an MRI scanner (Magnetic Resonance ImageScanner), and a nuclear medicine examination device. It is widely used for diagnosis of heart, abdominal internal organs, urinary organs and genital organs because there is no exposure such as X-rays, so it has the advantage of high safety.
  • the ultrasound diagnosis device In using the ultrasound diagnosis device, there is a difference between the time when the ultrasound diagnosis device is turned on and the time when the ultrasound diagnosis device is applied to a subject such as a patient to perform the actual diagnosis, and the time when the power is normally turned on is the actual diagnosis. It is considerably longer than the time.
  • an object of the present invention is to provide a method of determining an actual usage time of an ultrasound diagnosis apparatus while minimizing the effect on performance such as output speed and quality of an ultrasound image, and a portable ultrasound diagnosis apparatus to which it is applied.
  • the echo signal reflected from the subject by irradiating the ultrasound pulse inside the subject is converted into an electrical signal and a digital signal Receiving a digital echo signal converted to a signal; Calculating total energy of the input digital echo signal; Determining whether the portable ultrasound diagnostic device is in use using the calculated total energy; And accumulating a time determined to be in use by the portable ultrasound diagnosis device to calculate an actual use time.
  • determining whether the portable ultrasound diagnosis apparatus is in use when the calculated total energy is greater than a predetermined reference value, it may be determined that the portable ultrasound diagnosis apparatus is in use.
  • the total energy may be calculated by summing the digital echo signals.
  • the method may be performed in the portable ultrasound diagnosis apparatus.
  • the method may be performed in a portable terminal that receives ultrasound image data from the portable ultrasound diagnosis apparatus and displays an ultrasound image through a display screen.
  • a portable ultrasound diagnosis apparatus for solving the above technical problem includes: a transducer for generating an ultrasonic pulse to irradiate the inside of a subject, and converting an echo signal reflected and returned from the subject into an electrical signal; An analog-to-digital converter converting the echo signal from the transducer into a digital signal and outputting a digital echo signal; And calculating total energy of the digital echo signal input from the analog-to-digital converter, determining whether the portable ultrasound diagnostic device is in use using the calculated total energy, and determining that the portable ultrasound diagnostic device is in use. It characterized in that it comprises a use time calculator for calculating the actual use time by accumulating the time.
  • the use time calculation unit may determine that the portable ultrasound diagnosis apparatus is being used.
  • the usage time calculator may calculate the total energy by summing the digital echo signals.
  • the portable ultrasound diagnosis apparatus may further include a communication unit that transmits the calculated actual use time to an external server.
  • FIG. 1 is a view showing a portable ultrasound diagnosis apparatus and a portable terminal interworking therewith according to an embodiment of the present invention.
  • FIG. 2 shows the configuration of a portable ultrasound diagnosis apparatus according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method of determining an actual use time of a portable ultrasound diagnosis apparatus according to an embodiment of the present invention.
  • FIG. 1 is a view showing a portable ultrasound diagnosis apparatus and a portable terminal interworking therewith according to an embodiment of the present invention.
  • the portable ultrasound diagnosis apparatus 100 includes an ultrasound probe that transmits an ultrasound signal to a subject and receives an ultrasound echo signal reflected from the subject, and stores ultrasound image data (frame data) obtained from the ultrasound echo signal into the portable terminal 200. ).
  • the portable ultrasound diagnosis apparatus 100 includes a communication module for transmitting/receiving data with the portable terminal 200, and data transmission/reception between the portable ultrasound diagnosis apparatus 100 and the portable terminal 200 may use a wired or wireless communication method.
  • a wired communication method you can use a wired cable such as a USB cable, and as a wireless communication method, you can use Bluetooth, Wireless USB, Wireless LAN, WiFi, Zigbee, or IrDA, which is infrared communication. (Infrared Data Association) can be used.
  • the portable terminal 200 is a mobile user terminal, and includes any type of terminal that has an operating system, can access the Internet, and can install various applications (application programs).
  • the portable terminal 200 may be a notebook computer, a mobile phone, a portable media player (PMP), a personal digital assistant (PDA), a tablet PC, a smart phone, or the like.
  • An ultrasound diagnosis application that performs an ultrasound diagnosis function in conjunction with the portable ultrasound diagnosis apparatus 100 is installed in the portable terminal 200.
  • the ultrasound diagnosis application receives ultrasound image data from the portable ultrasound diagnosis apparatus 100, converts the received ultrasound image data into an ultrasound image suitable for the resolution of the display screen of the portable terminal 200, and displays it through the display screen.
  • the application installed in the portable terminal 200 substantially controls the portable terminal 200, such as executing various functions provided by the portable terminal 200, the operation of the portable terminal 200 described in this specification is performed by ultrasound diagnosis.
  • the operation of the application may also be understood, and the operation of the ultrasound diagnosis application may also be understood as the operation of the portable terminal 200.
  • FIG. 2 shows a configuration of a portable ultrasound diagnosis apparatus 100 according to an embodiment of the present invention.
  • the portable ultrasound diagnosis apparatus 100 includes a transducer 110 and a main circuit unit 120.
  • the transducer 110 generates an ultrasonic pulse from the electric pulse applied from the main circuit unit 120 to irradiate the inside of the object to be tested, and converts the echo signal reflected and returned from the object to an electric signal, and the main circuit unit 120 To pass.
  • the transducer 110 may be formed of a piezoelectric element array module or a micro-processed capacitive ultrasonic probe.
  • the piezoelectric element array module may be configured such that a large number of piezoelectric elements, such as 64, 128, 192, etc., are arranged in an array. Piezoelectric ceramics (lead zirconate titanate, PZT) having good electroacoustic conversion efficiency may be used as the piezoelectric element.
  • a voltage of +100V ⁇ -100V may be used as the voltage of the electric pulse for driving the piezoelectric element.
  • the main circuit unit 120 generates an electrical pulse to be applied to the transducer 110, generates frame data consisting of a plurality of scanline data from an echo signal received through the transducer 110, and generates frame data. It transmits to the portable terminal 200.
  • the main circuit unit 120 is a transmission/reception unit 121, a pulse generation unit 122, an analog-to-digital converter 123, a beam forming unit 124, a data processing unit 126, a communication unit 127, and usage time. It comprises a calculation unit 128.
  • the transmission/reception unit 121 transmits the electric pulse generated by the pulse generator 122 to the transducer 110 and transmits the echo signal received through the transducer 110 to the analog-to-digital converter 123 Do it.
  • the transmission/reception unit 121 may be configured as a switch that connects the TX circuit and the piezoelectric element array module when transmitting ultrasonic waves and connects the RX circuit and the piezoelectric element array module when receiving echo.
  • the pulse generator 122 generates an electrical pulse to be applied to the transducer 110 to generate an ultrasonic pulse.
  • the analog-to-digital converter 123 converts the echo signal transmitted from the transmitting/receiving unit 121 into a digital signal and outputs the digital echo signal to the beamforming unit 124 and the usage time calculation unit 128.
  • the beamforming unit 124 performs TX beamforming and RX beamforming.
  • TX beamforming is to cause the pulse generator 122 to generate an appropriate electrical pulse using a parameter corresponding to the transducer 110. For example, when transmitting the ultrasound, the energy of the ultrasound is focused at a focus at a specific distance. If possible, the time of the electric pulse is delayed according to the position of the piezoelectric element.
  • RX beamforming is to perform data conversion for the digital signal from the analog-to-digital converter 123 according to the transducer 110.
  • each piezoelectric element when receiving an echo signal, each piezoelectric element according to the position and reception time of the piezoelectric element It delays the electrical signal from the signal and adds the delayed signal to generate scanline data, and generates frame data in which a plurality of scanline data are collected.
  • Frame data is usually composed of m ⁇ n matrix-type echo data (where m is the number of echo data per scan line, n is the number of scan lines constituting a frame), and each echo data is a brightness value. Usually it has a value between 0 and 255.
  • the data processing unit 126 processes frame data generated by the beamforming unit 124 according to setting values of various parameters so that a clearer ultrasound image can be obtained. These parameters typically include gain, Time Gain Compensation (TGC), gray map, dynamic range (DR), and contrast.
  • TGC Time Gain Compensation
  • DR dynamic range
  • the communication unit 127 is a communication module for transmitting and receiving data with an external display device, and may use a wired or wireless communication method.
  • a wired communication method you can use a wired cable such as a USB cable, and as a wireless communication method, you can use Bluetooth, Wireless USB, Wireless LAN, WiFi, Zigbee, or IrDA, which is infrared communication.
  • Bluetooth, Wireless USB, Wireless LAN, WiFi, Zigbee, or IrDA which is infrared communication.
  • One of the (Infrared Data Association) methods can be used.
  • the communication unit 127 transmits the frame data processed through the data processing unit 126 to the portable terminal 200.
  • the portable terminal 200 converts the received frame data according to the display format of the portable terminal 200 to generate an ultrasound image, and displays the ultrasound image through the display screen.
  • the use time calculation unit 128 calculates the total energy of the digital echo signal input from the analog-to-digital converter 123, and determines whether the portable ultrasound diagnosis apparatus 100 is in use by using the calculated total energy, The actual use time of the portable ultrasound diagnosis apparatus 100 is calculated by accumulating the time determined to be in use by the portable ultrasound diagnosis apparatus 100.
  • the total energy from time t1 to time t2 of the analog signal x(t) can be calculated according to the following equation.
  • the total energy during the sampling period n1 ⁇ n ⁇ n2 of the digital signal x[n] may be calculated according to the following equation.
  • the echo signal converted into an electrical signal through the transducer 110 is an analog signal, and the echo signal is converted into a digital echo signal having a value of 0 to 255 through the analog-to-digital converter 123. Since the digital echo signal does not have a negative value, the usage time calculation unit 128 calculates the total energy by simply summing the digital echo signals without performing a square operation as shown in Equation 2 in calculating the total energy of the digital echo signal. Can be calculated. That is, the use time calculation unit 128 periodically and repeatedly (for example, every second), calculates the total energy of the digital echo signal x[n] during the sampling period n1 ⁇ n ⁇ n2 (of the corresponding period) to the following equation. You can calculate accordingly.
  • the amount of calculation can be significantly reduced compared to the case of performing the square operation as shown in Equation 2. For example, when adding digital numbers, the CPU uses an adder once, while when multiplying a 32-bit number, the CPU uses an adder 32 times and a shifter 32 times.
  • the process of calculating the total energy by summing the digital echo signals by the usage time calculation unit 128 is prior to the process of creating an ultrasound image by generating scanline data and frame data by the beamforming unit 124 and the data processing unit 126. As it is done, it hardly affects the performance such as the output speed and quality of the ultrasound image.
  • the ultrasonic diagnostic device When the ultrasonic diagnostic device is in the freeze mode and does not output an ultrasonic signal, since there is no echo signal, the total energy of the digital echo signal becomes '0'. Even if the ultrasonic signal is output, the so-called open air does not contact the subject. In the air) state, the echo signal is very weak, so the total energy of the digital echo signal appears as a very small value. On the other hand, the inventor confirmed through an experiment that the total energy of the digital echo signal is at least 5 to 10 times greater than the open air state when the ultrasound diagnosis device is actually diagnosed by contacting the subject.
  • a predetermined reference value of the total energy is defined in advance as a threshold (e.g., at 2 to 3 times the open air state), and the usage time calculation unit 128 is used when the total energy of the digital echo signal calculated every cycle is greater than this reference value. It is determined that the portable ultrasound diagnosis apparatus 100 is in use (or if it is larger or equal), and if not, it may be determined that the portable ultrasound diagnosis apparatus 100 is not in use.
  • the use time calculation unit 128 accumulates the time determined to be in use by the portable ultrasound diagnosis apparatus 100 (from the initial use time or the use time initialization time of the portable ultrasound diagnosis apparatus 100), and the portable ultrasound diagnosis apparatus ( 100) can be calculated.
  • the communication unit 127 transmits the actual usage time calculated through the usage time calculation unit 128 to the portable terminal 200, and the portable terminal 200 can display the actual usage time on the display screen according to a user request. have.
  • the communication unit 127 transmits the actual usage time to the external server through a communication network or It can be transmitted to an external server through the portable terminal 200.
  • FIG. 3 is a flowchart of a method of determining an actual use time of a portable ultrasound diagnosis apparatus according to an embodiment of the present invention.
  • the method of determining the actual use time of the portable ultrasound diagnosis apparatus according to the present embodiment may be performed by the above-described usage time calculation unit 128 of the portable ultrasound diagnosis apparatus 100. Accordingly, the above description of the usage time calculation unit 128 also applies to the method of determining the actual usage time of the portable ultrasound diagnosis apparatus according to the present embodiment.
  • the method of determining the actual use time of the portable ultrasound diagnosis apparatus may be performed by the portable terminal 200 (or an ultrasound diagnosis application installed therein) interworking with the portable ultrasound diagnosis apparatus 100.
  • the use time calculation unit 128 is not provided in the portable ultrasound diagnosis apparatus 100, and the communication unit 127 may transmit a digital echo signal output from the analog-digital converter 123 to the portable terminal 200.
  • the portable terminal 200 calculates the total energy of the digital echo signal, uses the calculated total energy to determine whether the portable ultrasound diagnosis apparatus 100 is in use, and indicates that the portable ultrasound diagnosis apparatus 100 is in use. By accumulating the determined time, the actual use time of the portable ultrasound diagnosis apparatus 100 may be calculated. Since the portable terminal 200 can also perform such processing with a very small amount of computation, there is little effect on performance such as output speed and quality of an ultrasound image.
  • step 310 a digital echo signal output from the analog-to-digital converter 123 is input.
  • step 320 the total energy of the digital echo signal is calculated.
  • the total energy can be calculated by summing the digital echo signals as shown in Equation 3 above.
  • step 330 it is determined whether the total energy of the digital echo signal is greater than (or greater than or equal to) a predetermined reference value, and if not, it is determined in step 340 that the portable ultrasound diagnosis apparatus 100 is not in use. It is determined that the diagnostic device 100 is in use.
  • step 360 the actual use time is calculated by accumulating the time determined to be in use by the portable ultrasound diagnosis apparatus 100. Steps 310 to 350 as described above are periodically and repeatedly performed. For example, if it is performed in a 1-second cycle, if it is determined that the portable ultrasound diagnosis apparatus 100 is being used through step 350, then in step 360, the calculated The actual usage time is updated by adding 1 second to the actual usage time.
  • step 370 if a transmission request of the actual use time occurs according to a predetermined transmission period or by a request from the outside, the actual use time is transmitted to the external server in step 380.
  • Devices include a processor, a memory for storing and executing program data, a permanent storage such as a disk drive, a communication port for communicating with an external device, a touch panel, a key, and a button.
  • User interface devices such as, etc. may be included.
  • Methods implemented as software modules or algorithms may be stored on a computer-readable recording medium as computer-readable codes or program instructions executable on the processor.
  • a computer-readable recording medium a magnetic storage medium (e.g., read-only memory (ROM), random-access memory (RAM), floppy disk, hard disk, etc.) and optical reading medium (e.g., CD-ROM ) And DVD (Digital Versatile Disc).
  • the computer-readable recording medium is distributed over network-connected computer systems, so that computer-readable codes can be stored and executed in a distributed manner.
  • the medium is readable by a computer, stored in memory, and executed on a processor.
  • Embodiments of the present invention may be represented by functional block configurations and various processing steps. These functional blocks or processing steps may be implemented in various numbers of hardware or/and software configurations that perform specific functions.
  • the embodiment is an integrated circuit configuration such as memory, processing, logic, look-up table, etc., capable of executing various functions by controlling one or more microprocessors or by other control devices. Can be hired.
  • embodiments include various algorithms implemented with a combination of data structures, processes, routines or other programming constructs, including C, C++. , Java, assembler, etc. may be implemented in a programming or scripting language. Functional aspects can be implemented with an algorithm running on one or more processors.
  • embodiments may employ conventional techniques for electronic environment setting, signal processing, and/or data processing.
  • Terms such as “mechanism”, “element”, “means”, and “composition” can be used widely, and are not limited to mechanical and physical configurations.
  • the term may include a meaning of a series of routines of software in connection with a processor or the like.
  • connection or connection members of the lines between the components shown in the drawings exemplarily represent functional connections and/or physical or circuit connections, and in an actual device, various functional connections that can be replaced or additionally It may be referred to as a connection, or circuit connections.
  • essential or “importantly”, it may not be an essential component for the application of the present invention.

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Abstract

La présente invention concerne un procédé qui permet de déterminer le temps d'utilisation réel d'un appareil de diagnostic ultrasonore portable, et qui comprend les étapes consistant : à recevoir un signal d'écho numérique entré par conversion d'un signal d'écho, qui revient après qu'une impulsion ultrasonore a été émise dans le corps d'un sujet de façon à être réfléchie par le sujet, en un signal électrique puis en un signal numérique ; à calculer l'énergie totale du signal d'écho numérique entré ; à utiliser l'énergie totale calculée de façon à déterminer si l'appareil de diagnostic ultrasonore portable est en cours d'utilisation ; à ajouter le temps déterminé comme étant celui pendant lequel l'appareil de diagnostic ultrasonore portable est en cours d'utilisation, de façon à calculer un temps d'utilisation réel.
PCT/KR2020/003510 2019-03-28 2020-03-13 Appareil de diagnostic ultrasonore portable et procédé pour déterminer son temps d'utilisation réel WO2020197139A1 (fr)

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KR1020190035748A KR102622719B1 (ko) 2019-03-28 2019-03-28 휴대용 초음파 진단 장치 및 그것의 실사용 시간 결정 방법
KR10-2019-0035748 2019-03-28

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Citations (5)

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JP2006122586A (ja) * 2004-11-01 2006-05-18 Olympus Corp カプセル型超音波診断装置
JP2011004855A (ja) * 2009-06-24 2011-01-13 Konica Minolta Medical & Graphic Inc 超音波診断システム
JP2016516477A (ja) * 2013-03-13 2016-06-09 ジンヒョン パーク 回転式血管内超音波装置から画像を生成するためのシステム及び方法
KR20170093338A (ko) * 2016-02-05 2017-08-16 삼성메디슨 주식회사 초음파 진단장치 및 그 제어방법
KR20170126674A (ko) * 2016-05-10 2017-11-20 주식회사 힐세리온 휴대용 초음파 진단 장치 및 그 동작 방법

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JP4619481B2 (ja) * 2000-03-29 2011-01-26 株式会社東芝 超音波画像診断装置
JP2002200094A (ja) * 2000-12-27 2002-07-16 Olympus Optical Co Ltd 超音波手術装置
JP5582969B2 (ja) * 2010-11-01 2014-09-03 株式会社東芝 超音波診断装置及び超音波診断に関わる機能提供方法
EP3134854A1 (fr) * 2014-04-24 2017-03-01 Koninklijke Philips N.V. Système de gestion de ressource ultrasonore

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006122586A (ja) * 2004-11-01 2006-05-18 Olympus Corp カプセル型超音波診断装置
JP2011004855A (ja) * 2009-06-24 2011-01-13 Konica Minolta Medical & Graphic Inc 超音波診断システム
JP2016516477A (ja) * 2013-03-13 2016-06-09 ジンヒョン パーク 回転式血管内超音波装置から画像を生成するためのシステム及び方法
KR20170093338A (ko) * 2016-02-05 2017-08-16 삼성메디슨 주식회사 초음파 진단장치 및 그 제어방법
KR20170126674A (ko) * 2016-05-10 2017-11-20 주식회사 힐세리온 휴대용 초음파 진단 장치 및 그 동작 방법

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