JPS646860A - Acoustic lens for ultrasonic probe - Google Patents

Acoustic lens for ultrasonic probe

Info

Publication number
JPS646860A
JPS646860A JP62163228A JP16322887A JPS646860A JP S646860 A JPS646860 A JP S646860A JP 62163228 A JP62163228 A JP 62163228A JP 16322887 A JP16322887 A JP 16322887A JP S646860 A JPS646860 A JP S646860A
Authority
JP
Japan
Prior art keywords
focused
aperture
focal length
acoustic lens
ultrasonic wave
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62163228A
Other languages
Japanese (ja)
Inventor
Motoyoshi Ando
Toru Shimazaki
Hiroshi Tabei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GE Healthcare Japan Corp
Original Assignee
Yokogawa Medical Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yokogawa Medical Systems Ltd filed Critical Yokogawa Medical Systems Ltd
Priority to JP62163228A priority Critical patent/JPS646860A/en
Priority to PCT/JP1988/000660 priority patent/WO1989000026A1/en
Priority to EP88906058A priority patent/EP0370107B1/en
Priority to DE3851892T priority patent/DE3851892T2/en
Priority to KR1019890700270A priority patent/KR910000233B1/en
Priority to US07/455,340 priority patent/US5083568A/en
Publication of JPS646860A publication Critical patent/JPS646860A/en
Pending legal-status Critical Current

Links

Landscapes

  • Ultra Sonic Daignosis Equipment (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

PURPOSE:To realize convergence which is uniform in a Y direction over wide range from a shallow part to a deep part by using an acoustic lens which has focuses as many as the number of variations of an aperture in the Y direction. CONSTITUTION:The ultrasonic wave vibrator 11 is constituted by dividing a rectangular prismatic piezoelectric body, a linear array with specific pitch in the X direction is formed, and the vibrator is divided into three at the 1:2:1 area ratio in the Y direction. A scan in the X direction is made as usual and the aperture is varied in the Y direction according to the depth of an object position. A shallow position is scanned in the X direction only by an array of signal electrodes 13a. Then the Y-directional width of an ultrasonic beam becomes short since the beam is focused by a lens part 14a of short focal length Fa. Then, when the position is deep, an X-directional scan is made by signal electrodes 13a, and 13b1 and 13b2. At this time, the ultrasonic wave beam is focused in the Y direction by a lens part 14b of focal length Fb to obtain a beam shape as shown in a figure.
JP62163228A 1987-06-30 1987-06-30 Acoustic lens for ultrasonic probe Pending JPS646860A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP62163228A JPS646860A (en) 1987-06-30 1987-06-30 Acoustic lens for ultrasonic probe
PCT/JP1988/000660 WO1989000026A1 (en) 1987-06-30 1988-06-30 Ultrasonic diagnostic apparatus
EP88906058A EP0370107B1 (en) 1987-06-30 1988-06-30 Ultrasonic diagnostic apparatus
DE3851892T DE3851892T2 (en) 1987-06-30 1988-06-30 ULTRASONIC DIAGNOSTIC DEVICE.
KR1019890700270A KR910000233B1 (en) 1987-06-30 1988-06-30 Ultrasonic diagnostic apparatus
US07/455,340 US5083568A (en) 1987-06-30 1988-06-30 Ultrasound diagnosing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62163228A JPS646860A (en) 1987-06-30 1987-06-30 Acoustic lens for ultrasonic probe

Publications (1)

Publication Number Publication Date
JPS646860A true JPS646860A (en) 1989-01-11

Family

ID=15769759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62163228A Pending JPS646860A (en) 1987-06-30 1987-06-30 Acoustic lens for ultrasonic probe

Country Status (1)

Country Link
JP (1) JPS646860A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006319712A (en) * 2005-05-13 2006-11-24 Olympus Medical Systems Corp Electrostatic capacitive ultrasonic transducer and manufacturing method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5621057A (en) * 1979-07-31 1981-02-27 Aloka Co Ltd Electron scanning type supersonic wave probe
JPS5920157A (en) * 1982-07-28 1984-02-01 アロカ株式会社 Ultrasonic diagnostic apparatus
JPS59174150A (en) * 1983-03-25 1984-10-02 横河メディカルシステム株式会社 Multi-focus ultrasonic diagnostic apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5621057A (en) * 1979-07-31 1981-02-27 Aloka Co Ltd Electron scanning type supersonic wave probe
JPS5920157A (en) * 1982-07-28 1984-02-01 アロカ株式会社 Ultrasonic diagnostic apparatus
JPS59174150A (en) * 1983-03-25 1984-10-02 横河メディカルシステム株式会社 Multi-focus ultrasonic diagnostic apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006319712A (en) * 2005-05-13 2006-11-24 Olympus Medical Systems Corp Electrostatic capacitive ultrasonic transducer and manufacturing method thereof

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