KR940001864A - Ultrasonic Diagnosis System with Variable Device Size - Google Patents

Ultrasonic Diagnosis System with Variable Device Size Download PDF

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KR940001864A
KR940001864A KR1019920011731A KR920011731A KR940001864A KR 940001864 A KR940001864 A KR 940001864A KR 1019920011731 A KR1019920011731 A KR 1019920011731A KR 920011731 A KR920011731 A KR 920011731A KR 940001864 A KR940001864 A KR 940001864A
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depth
predetermined
ultrasonic
transducer
amplifying
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KR1019920011731A
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KR960016298B1 (en
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김영모
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이민화
주식회사 메디슨
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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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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

본 발명은 초음파진단기에서 탐촉자의 소자의 크기가 초음파의 전달깊이에 따라 가변되는 초음파진단기에 관한 것으로, 초음파를 발사 및 수신하는 다수의 소자들과 병렬로 연결되어 상기 깊이에 따라 가변적으로 소정 갯수씩 소자를 결합하는 스위치와, 스위치에서 결합된 소정 소자들의 전송신호를 각각 증폭시키고 지연시키는 수단을 구비하여, 초음파의 전달깊이에 따라 탐촉자의 유효폭을 적응적으로 가변시키므로써 스캔화상의 해상도를 보다 향상시킬 수 있다.The present invention relates to an ultrasonic diagnostic apparatus in which the size of the transducer element of the ultrasonic diagnostic apparatus is varied according to the transmission depth of the ultrasonic wave. The ultrasonic diagnostic apparatus is connected in parallel with a plurality of components for emitting and receiving ultrasonic waves, and the predetermined number is variable depending on the depth. A switch for coupling the elements and a means for amplifying and delaying the transmission signals of the predetermined elements coupled in the switch, thereby adaptively varying the effective width of the transducer according to the transmission depth of the ultrasonic wave, thereby further improving the resolution of the scanned image. You can.

Description

소자의 크기를 가변시키는 초음파진단시스템Ultrasonic Diagnosis System with Variable Device Size

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 초음파탐촉자의 촛점맞추기를 나타내는 개략도3 is a schematic diagram showing focusing of an ultrasonic transducer

제4도는 본 발명에 의한 소자의 크기를 가변시키는 초음파 진단기의 수신부를 나타내는 블록도4 is a block diagram showing a receiving unit of the ultrasonic diagnostic apparatus for varying the size of the device according to the present invention.

제5도는 본 발명에 의한 초음파진단기의 탐촉자 폭에 따른 깊이와 해상도의 관계를 나타내는 그래프5 is a graph showing the relationship between the depth and the resolution according to the transducer width of the ultrasonic diagnostic apparatus according to the present invention

제6도는 본 발명에 의한 초음파진단기의 탐촉자 소자의 크기 가변상태를 나타내는 개략도.Figure 6 is a schematic diagram showing a variable size state of the transducer element of the ultrasonic diagnostic apparatus according to the present invention.

Claims (9)

초음파진단기에서 탐촉자에 구비된 다수의 소자를 통해 소정의 초음파신호를 발사 및 수신하여 소정의 스캔영역을 디스플레이하기 위한 방법에 있어서, 상기 초음파신호가 대상 매체에서 전달되는 깊이를 판별하는 단계와. 상기 깊이판별단계의 결과에 따라 탐촉자의 소자의 크기가 가변되도록 소자를 구성하는 단위소자의 결합갯수를 조절하는 멀티플렉싱단계와, 상기 멀티플렉싱 결과 얻어진 소정 크기의 소자들로 부터 각각 공급되는 신호를 각각 소정 증폭률로 증폭하는 단계와, 상기 증폭단계에서 각각 증폭된 신호를 각각 소정시간 지연하는 단계와, 상기 지연단계에서 지연된 신호들을 가산하는 단계를 포함하는 것을 특징으로 하는 소자의 크기를 가변시키는 스캔 방법.A method for displaying a predetermined scan area by launching and receiving a predetermined ultrasonic signal through a plurality of devices included in a transducer in an ultrasonic diagnostic apparatus, the method comprising: determining a depth at which the ultrasonic signal is transmitted from a target medium. The multiplexing step of adjusting the number of coupling of the unit elements constituting the device so that the size of the device of the transducer is variable according to the result of the depth discrimination step, and each of the signals supplied from the elements of a predetermined size obtained as a result of the multiplexing predetermined Amplifying at an amplification rate, delaying signals amplified in the amplifying step for a predetermined time, and adding signals delayed in the delaying step. 제1항에 있어서, 상기 깊이판별단계는 초음파신호가 전달되는 깊이를 복수개의 영역으로 구분하여, 탐촉자에서 발생되는 초음파신호의 깊이가 어느영역에 속하는가를 판별하는 것을 특징으로 하는 소자의 크기를 가변시키는 스캔방법.The device of claim 1, wherein the depth judging step divides the depth of the ultrasonic signal transmission into a plurality of regions to determine which region the depth of the ultrasonic signal generated by the transducer belongs to. Scan method. 제1항 또는 제2항에 있어서, 상기 멀티플렉싱단제는 상기 깊이판별단계의 판별결과 깊이영역이 클수록 더 많은 갯수의 소자를 묶어 하나의 소자로 결합하는 것을 특징으로 하는 소자의 크기를 가변시키는 스캔방법.The scanning method of claim 1, wherein the multiplexing unit combines a larger number of devices into a single device as the depth area becomes larger as a result of the determination of the depth discrimination step. . 제1항에 있어서. 상기 증폭단계는 상기 깊이영역이 작을수록 상기 탐촉자에서 초음파신호를 발사 및 수신하는 유효폭이 작아지도록 상기 큰 소자들의 출력신호에 대한 각 증폭률을 가변시키는 것을 특징으로 하는 소자의 크기를 가변시키는 스캔방법.The method of claim 1. The amplifying step of varying the size of the device, characterized in that for varying the amplification factor for the output signal of the large elements so that the effective width for the launch and receive the ultrasonic signal from the transducer is smaller the smaller the depth region. 제1항에 있어서, 상기 지연단계는 스캔하는 화상의 츳점을 맞추기 위하여 대상물과의 거리가 짧은 소자일수록 그 소자의 신호를 더 지연시키는 것을 특징으로 하는 소자의 크기를 가변시키는 스캔방법.2. The scanning method of claim 1, wherein the delaying step further delays a signal of the device as a device having a shorter distance from an object in order to focus on an image to be scanned. 탐촉자에서 소정의 초음파신호를 발사 및 수신하여 소정의 스캔 영역을 디스플레이 하기 위한 초음파진단기에 있어서, 상기 탐촉자에 구비되어 소정의 초음파신호률 각각 발사 및 수신하는 소정 크기의 다수의 소자들과, 상기 다수의 소자들과 병렬로 연결되어 하나 또는 둘이상의 소자를 초음파신호가 전달되는 깊이에 따라 가변적으로 결합하는 스위칭수단과, 상기 스위칭수단에서 공급되는 각 신호를 각각 증폭하는 증폭수단과, 상기 증폭수단에서 공급되는 각 신호를 각각 지연하는 지연수단과. 상기 지연수단에서 공급되는 각 신호를 가산하는 수단을 포함하는 것을 특징으로 하는 소자의 크기를 가변시키는 초음파진단기.An ultrasonic diagnostic apparatus for launching and receiving a predetermined ultrasonic signal from a transducer to display a predetermined scan area, the ultrasonic diagnostic apparatus comprising: a plurality of devices of a predetermined size, which are provided in the transducer to emit and receive predetermined ultrasonic signal rates, respectively, Switching means for variably coupling one or two or more elements according to a depth at which an ultrasonic signal is transmitted, connected in parallel with elements of the amplifier, amplifying means for amplifying each signal supplied from the switching means, and in the amplifying means, Delay means for delaying each of the signals supplied; And means for adding each signal supplied from said delay means. 제6항에 있어서, 상기 스위칭수단은 상기 깊이가 증가할수록 결합하는 소자의 갯수도 증가하는 것을 특징으로 하는 소자의 크기를 가변시키는 초음파진단기.7. The ultrasonic diagnostic apparatus according to claim 6, wherein the switching means increases the number of devices to be coupled as the depth increases. 제6항에 있어서, 상기 증폭수단은 상기 스위칭수단의 일측방향 단자들과 각각 연결되어 상기 탐촉자의 유효폭이 결정되도록 각각 소정의 증폭률을 갖는 다수의 증폭기로 이루어지는 것을 특징으로 하는 소자의 크기를 가변시키는 초음파진단기.7. The apparatus of claim 6, wherein the amplifying means comprises a plurality of amplifiers each having a predetermined amplification factor so as to be connected to one side terminals of the switching means to determine an effective width of the transducer. Ultrasonic Diagnostics. 제6항 또는 제8항에 있어서, 상기 증폭수단은 상기 깊이가 감소할수록 상기 유효폭이 작아지도록 각 증폭기의 증폭률이 가변되는 것을 특징으로 하는 소자의 크기를 가변시키는 초음파진단기.The ultrasonic diagnostic apparatus according to claim 6 or 8, wherein the amplifying means varies in amplification ratio of each amplifier so that the effective width decreases as the depth decreases. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920011731A 1992-07-02 1992-07-02 Ultrasonic diagnostic device that adaptively changes the number of transducer unit elements according to focal length KR960016298B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100641589B1 (en) * 1997-05-07 2007-03-02 제너럴 일렉트릭 캄파니 Method and apparatus for enhancing resolution and sensitivity in color flow ultrasound imaging

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5575554B2 (en) 2010-06-23 2014-08-20 株式会社東芝 Ultrasonic diagnostic equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100641589B1 (en) * 1997-05-07 2007-03-02 제너럴 일렉트릭 캄파니 Method and apparatus for enhancing resolution and sensitivity in color flow ultrasound imaging

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