WO2008033528A3 - Therapeutic and diagnostic electrostrictor ultrasonic arrays - Google Patents

Therapeutic and diagnostic electrostrictor ultrasonic arrays Download PDF

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Publication number
WO2008033528A3
WO2008033528A3 PCT/US2007/020047 US2007020047W WO2008033528A3 WO 2008033528 A3 WO2008033528 A3 WO 2008033528A3 US 2007020047 W US2007020047 W US 2007020047W WO 2008033528 A3 WO2008033528 A3 WO 2008033528A3
Authority
WO
WIPO (PCT)
Prior art keywords
bias
electrostrictor
diagnostic
therapeutic
dimension
Prior art date
Application number
PCT/US2007/020047
Other languages
French (fr)
Other versions
WO2008033528A2 (en
Inventor
Charles Emery
Robyn Lahman
John Kook
Original Assignee
Acoustx Corp
Charles Emery
Robyn Lahman
John Kook
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 Acoustx Corp, Charles Emery, Robyn Lahman, John Kook filed Critical Acoustx Corp
Publication of WO2008033528A2 publication Critical patent/WO2008033528A2/en
Publication of WO2008033528A3 publication Critical patent/WO2008033528A3/en

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
    • G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
    • G10K11/341—Circuits therefor
    • G10K11/346—Circuits therefor using phase variation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
    • G01S15/8915—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array
    • G01S15/8925—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array the array being a two-dimensional transducer configuration, i.e. matrix or orthogonal linear arrays

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

Electrostrictor material is used as transducer elements in an ultrasonic array comprising bias and signal dimensions. The bias dimension is used for Fresnel focusing and the signal dimension is used for beam forming. Positive and negative polarity may used along the bias dimension. In some cases, a zero bias is also used within the Fresnel aperture. Dynamic switching of the bias and signal dimensions may also be employed.
PCT/US2007/020047 2006-09-13 2007-09-13 Therapeutic and diagnostic electrostrictor ultrasonic arrays WO2008033528A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US84455406P 2006-09-13 2006-09-13
US60/844,554 2006-09-13
US89145507P 2007-02-23 2007-02-23
US60/891,455 2007-02-23

Publications (2)

Publication Number Publication Date
WO2008033528A2 WO2008033528A2 (en) 2008-03-20
WO2008033528A3 true WO2008033528A3 (en) 2008-11-06

Family

ID=39184396

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/020047 WO2008033528A2 (en) 2006-09-13 2007-09-13 Therapeutic and diagnostic electrostrictor ultrasonic arrays

Country Status (1)

Country Link
WO (1) WO2008033528A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9958420B2 (en) * 2013-02-06 2018-05-01 Bwxt Technical Services Group, Inc. Synthetic data collection method for full matrix capture using an ultrasound array
JP6608062B2 (en) * 2015-09-08 2019-11-20 ダルハウジー ユニバーシティー System and method for phased array and Fresnel zone plate combination beam forming using delay corrected Fresnel sub-aperture
US11061124B2 (en) 2016-10-21 2021-07-13 The Governors Of The University Of Alberta System and method for ultrasound imaging
CN110235022B (en) * 2016-12-15 2024-04-02 达尔豪斯大学 System and method for ultrasound beamforming using coherent composite fresnel focusing
US11150344B2 (en) 2018-01-26 2021-10-19 Roger Zemp 3D imaging using a bias-sensitive crossed-electrode array
WO2023168518A1 (en) * 2022-03-07 2023-09-14 Daxsonics Ultrasound Inc. Quadrature excitation and fresnel focusing of row-column transducer arrays
WO2024073835A1 (en) * 2022-10-07 2024-04-11 Daxsonics Ultrasound Inc. Ultrasound imaging and therapy using bias apertures and element clusters driven in quadrature

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0383270A2 (en) * 1989-02-16 1990-08-22 Hitachi, Ltd. Ultrasonic imaging system
US6656136B1 (en) * 1999-10-25 2003-12-02 Therus Corporation Use of focused ultrasound for vascular sealing
US20050124884A1 (en) * 2003-12-05 2005-06-09 Mirsaid Bolorforosh Multidimensional transducer systems and methods for intra patient probes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0383270A2 (en) * 1989-02-16 1990-08-22 Hitachi, Ltd. Ultrasonic imaging system
US6656136B1 (en) * 1999-10-25 2003-12-02 Therus Corporation Use of focused ultrasound for vascular sealing
US20050124884A1 (en) * 2003-12-05 2005-06-09 Mirsaid Bolorforosh Multidimensional transducer systems and methods for intra patient probes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TAKEUCHI H ET AL: "Relaxor ferroelectric transducers", 19901204; 19901204 - 19901207, 4 December 1990 (1990-12-04), pages 697 - 705, XP010010111 *

Also Published As

Publication number Publication date
WO2008033528A2 (en) 2008-03-20

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