DE69524817T2 - Diagnostic ultrasound transducer arrangement with elevation focus - Google Patents

Diagnostic ultrasound transducer arrangement with elevation focus

Info

Publication number
DE69524817T2
DE69524817T2 DE69524817T DE69524817T DE69524817T2 DE 69524817 T2 DE69524817 T2 DE 69524817T2 DE 69524817 T DE69524817 T DE 69524817T DE 69524817 T DE69524817 T DE 69524817T DE 69524817 T2 DE69524817 T2 DE 69524817T2
Authority
DE
Germany
Prior art keywords
elevational
array
subelements
focusing
elements
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.)
Expired - Fee Related
Application number
DE69524817T
Other languages
German (de)
Other versions
DE69524817D1 (en
Inventor
Jacques Souquet
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.)
Advanced Technology Laboratories Inc
Original Assignee
Advanced Technology Laboratories Inc
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 Advanced Technology Laboratories Inc filed Critical Advanced Technology Laboratories Inc
Publication of DE69524817D1 publication Critical patent/DE69524817D1/en
Application granted granted Critical
Publication of DE69524817T2 publication Critical patent/DE69524817T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/32—Sound-focusing or directing, e.g. scanning characterised by the shape of the source
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
    • B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface

Abstract

An ultrasonic diagnostic transducer array (16) is provided for providing electronic focusing in the longitudinal plane (L) and elevational (E) focusing. Elements (e1,e2...) of the array (16) are subdiced in the elevational direction (E) to provide subelements (1-2,2-2,3-2...) with aspect ratios varying in proportion to their distance to the central longitudinal axis of the array. Such variation affords varying electro-mechanical coupling coefficients to the subelements such that the intensity of the transmitted energy is centered about the central longitudinal axis. In a second embodiment (not represented) elements exhibit extensions in the elevational direction which vary in proportion to their displacement from the longitudinal center of the array. The extended elements are acoustically separated into subelements in the elevational direction to provide elevational focusing or spatial compounding of the transmitted acoustic energy. <IMAGE>
DE69524817T 1994-06-24 1995-06-23 Diagnostic ultrasound transducer arrangement with elevation focus Expired - Fee Related DE69524817T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26516994A 1994-06-24 1994-06-24

Publications (2)

Publication Number Publication Date
DE69524817D1 DE69524817D1 (en) 2002-02-07
DE69524817T2 true DE69524817T2 (en) 2002-09-05

Family

ID=23009312

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69524817T Expired - Fee Related DE69524817T2 (en) 1994-06-24 1995-06-23 Diagnostic ultrasound transducer arrangement with elevation focus

Country Status (4)

Country Link
EP (1) EP0689187B1 (en)
JP (1) JP3618406B2 (en)
AT (1) ATE211571T1 (en)
DE (1) DE69524817T2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19840375C2 (en) 1998-09-04 2003-08-28 Harman Audio Electronic Sys baffle
US20070016020A1 (en) * 2003-10-02 2007-01-18 Mitsuhiro Oshiki Ultrasonic probe, ultrasonographic device, and ultrasonographic method
US7263888B2 (en) 2003-10-16 2007-09-04 General Electric Company Two dimensional phased arrays for volumetric ultrasonic inspection and methods of use
FR2973550B1 (en) * 2011-03-30 2015-12-04 Edap Tms France METHOD AND APPARATUS FOR GENERATING FOCUSED ULTRASONIC WAVE WITH SURFACE MODULATION
KR101383298B1 (en) * 2012-04-25 2014-04-09 삼성전자주식회사 Ultrasonic probe apparatus and method for fabricating ultrasonic probe apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881164A (en) * 1973-09-13 1975-04-29 Commw Of Australia Cross array ultrasonic transducer
US3936791A (en) 1973-09-13 1976-02-03 The Commonwealth Of Australia Linear array ultrasonic transducer
GB8912782D0 (en) * 1989-06-02 1989-07-19 Udi Group Ltd An acoustic transducer
US5099459A (en) * 1990-04-05 1992-03-24 General Electric Company Phased array ultrosonic transducer including different sized phezoelectric segments

Also Published As

Publication number Publication date
JP3618406B2 (en) 2005-02-09
DE69524817D1 (en) 2002-02-07
JPH0866395A (en) 1996-03-12
EP0689187A1 (en) 1995-12-27
ATE211571T1 (en) 2002-01-15
EP0689187B1 (en) 2002-01-02

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee