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WO2015028945A3 - Variable frequency control of collapsed mode cmut transducer - Google Patents

Variable frequency control of collapsed mode cmut transducer Download PDF

Info

Publication number
WO2015028945A3
WO2015028945A3 PCT/IB2014/064079 IB2014064079W WO2015028945A3 WO 2015028945 A3 WO2015028945 A3 WO 2015028945A3 IB 2014064079 W IB2014064079 W IB 2014064079W WO 2015028945 A3 WO2015028945 A3 WO 2015028945A3
Authority
WO
WIPO (PCT)
Prior art keywords
bias voltage
clinical applications
collapsed mode
frequency control
variable frequency
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.)
Ceased
Application number
PCT/IB2014/064079
Other languages
French (fr)
Other versions
WO2015028945A2 (en
Inventor
Richard Edward DAVIDSEN
Junho Song
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
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 Koninklijke Philips NV filed Critical Koninklijke Philips NV
Publication of WO2015028945A2 publication Critical patent/WO2015028945A2/en
Publication of WO2015028945A3 publication Critical patent/WO2015028945A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B06B1/0292—Electrostatic transducers, e.g. electret-type
    • 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
    • A61B8/4483—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device characterised by features of the ultrasound transducer
    • 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
    • B06B1/0207—Driving circuits
    • 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
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/70—Specific application
    • B06B2201/76—Medical, dental

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Gynecology & Obstetrics (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

An ultrasonic diagnostic imaging system has a CMUT transducer probe (10) with an array (10') of CMUT cells operated in a collapsed mode during ultrasonic signal transmission and reception. The frequency response to the CMUT cells is tailored for different clinical applications or continuously varied during echo reception by decreasing the DC bias voltage for the CMUT cells for lower frequency clinical applications, increasing the DC bias voltage for higher frequency clinical applications, or continuously decreasing the DC bias voltage as echoes are received to track the information frequency composition of the returning echo signals.
PCT/IB2014/064079 2013-08-27 2014-08-27 Variable frequency control of collapsed mode cmut transducer Ceased WO2015028945A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361870273P 2013-08-27 2013-08-27
US61/870,273 2013-08-27

Publications (2)

Publication Number Publication Date
WO2015028945A2 WO2015028945A2 (en) 2015-03-05
WO2015028945A3 true WO2015028945A3 (en) 2015-08-27

Family

ID=51752148

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2014/064079 Ceased WO2015028945A2 (en) 2013-08-27 2014-08-27 Variable frequency control of collapsed mode cmut transducer

Country Status (1)

Country Link
WO (1) WO2015028945A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6797919B2 (en) 2015-12-10 2020-12-09 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Ultrasound imaging system Probe and system, and imaging method
WO2017216139A1 (en) 2016-06-13 2017-12-21 Koninklijke Philips N.V. Broadband ultrasound transducer
US11712221B2 (en) 2016-06-20 2023-08-01 Bfly Operations, Inc. Universal ultrasound device and related apparatus and methods
US10856840B2 (en) 2016-06-20 2020-12-08 Butterfly Network, Inc. Universal ultrasound device and related apparatus and methods
WO2018100015A1 (en) 2016-12-01 2018-06-07 Koninklijke Philips N.V. Cmut probe, system and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050219953A1 (en) * 2004-04-06 2005-10-06 The Board Of Trustees Of The Leland Stanford Junior University Method and system for operating capacitive membrane ultrasonic transducers
EP2455133A1 (en) * 2010-11-18 2012-05-23 Koninklijke Philips Electronics N.V. Catheter comprising capacitive micromachined ultrasonic transducers with an adjustable focus

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016750B1 (en) 1975-11-06 1994-04-05 Stanford Research Inst Ultrasonic imaging method and apparatus
US6283919B1 (en) 1996-11-26 2001-09-04 Atl Ultrasound Ultrasonic diagnostic imaging with blended tissue harmonic signals
US6458083B1 (en) 1996-11-26 2002-10-01 Koninklijke Philips Electronics N.V. Ultrasonic harmonic imaging with adaptive image formation
US6013032A (en) 1998-03-13 2000-01-11 Hewlett-Packard Company Beamforming methods and apparatus for three-dimensional ultrasound imaging using two-dimensional transducer array
US5997479A (en) 1998-05-28 1999-12-07 Hewlett-Packard Company Phased array acoustic systems with intra-group processors
US6530885B1 (en) 2000-03-17 2003-03-11 Atl Ultrasound, Inc. Spatially compounded three dimensional ultrasonic images
US6443901B1 (en) 2000-06-15 2002-09-03 Koninklijke Philips Electronics N.V. Capacitive micromachined ultrasonic transducers
US6443896B1 (en) 2000-08-17 2002-09-03 Koninklijke Philips Electronics N.V. Method for creating multiplanar ultrasonic images of a three dimensional object
US6468216B1 (en) 2000-08-24 2002-10-22 Kininklijke Philips Electronics N.V. Ultrasonic diagnostic imaging of the coronary arteries
US6795374B2 (en) 2001-09-07 2004-09-21 Siemens Medical Solutions Usa, Inc. Bias control of electrostatic transducers
WO2010097729A1 (en) 2009-02-27 2010-09-02 Koninklijke Philips Electronics, N.V. Pre-collapsed cmut with mechanical collapse retention

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050219953A1 (en) * 2004-04-06 2005-10-06 The Board Of Trustees Of The Leland Stanford Junior University Method and system for operating capacitive membrane ultrasonic transducers
EP2455133A1 (en) * 2010-11-18 2012-05-23 Koninklijke Philips Electronics N.V. Catheter comprising capacitive micromachined ultrasonic transducers with an adjustable focus

Also Published As

Publication number Publication date
WO2015028945A2 (en) 2015-03-05

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