WO1995019049A1 - Ultrasonic transducer with selectable beamwidth and method - Google Patents
Ultrasonic transducer with selectable beamwidth and method Download PDFInfo
- Publication number
- WO1995019049A1 WO1995019049A1 PCT/US1995/000086 US9500086W WO9519049A1 WO 1995019049 A1 WO1995019049 A1 WO 1995019049A1 US 9500086 W US9500086 W US 9500086W WO 9519049 A1 WO9519049 A1 WO 9519049A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transducer
- diameter
- resonance
- distal
- approximately
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 13
- 239000000463 material Substances 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 7
- 230000009977 dual effect Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000032683 aging Effects 0.000 claims description 2
- 230000005284 excitation Effects 0.000 claims 7
- 238000012544 monitoring process Methods 0.000 claims 1
- 239000000919 ceramic Substances 0.000 description 5
- 238000002604 ultrasonography Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 230000017531 blood circulation Effects 0.000 description 3
- 230000000644 propagated effect Effects 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000005477 standard model Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000004351 coronary vessel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000001105 femoral artery Anatomy 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- ZBSCCQXBYNSKPV-UHFFFAOYSA-N oxolead;oxomagnesium;2,4,5-trioxa-1$l^{5},3$l^{5}-diniobabicyclo[1.1.1]pentane 1,3-dioxide Chemical compound [Mg]=O.[Pb]=O.[Pb]=O.[Pb]=O.O1[Nb]2(=O)O[Nb]1(=O)O2 ZBSCCQXBYNSKPV-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- B06B1/06—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
- B06B1/0644—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 a single piezoelectric element
- B06B1/0655—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 a single piezoelectric element of cylindrical shape
-
- 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
- B06B1/0644—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 a single piezoelectric element
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/06—Measuring blood flow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/12—Diagnosis using ultrasonic, sonic or infrasonic waves in body cavities or body tracts, e.g. by using catheters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/42—Piezoelectric device making
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95907977A EP0738427A4 (en) | 1994-01-06 | 1995-01-05 | Ultrasonic transducer with selectable beamwidth and method |
JP7518577A JPH09508242A (en) | 1994-01-06 | 1995-01-05 | Ultrasonic transducer and method with selectable beam width |
AU15978/95A AU1597895A (en) | 1994-01-06 | 1995-01-05 | Ultrasonic transducer with selectable beamwidth and method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17808194A | 1994-01-06 | 1994-01-06 | |
US08/178,081 | 1994-01-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995019049A1 true WO1995019049A1 (en) | 1995-07-13 |
Family
ID=22651100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1995/000086 WO1995019049A1 (en) | 1994-01-06 | 1995-01-05 | Ultrasonic transducer with selectable beamwidth and method |
Country Status (6)
Country | Link |
---|---|
US (3) | US5581144A (en) |
EP (1) | EP0738427A4 (en) |
JP (1) | JPH09508242A (en) |
AU (1) | AU1597895A (en) |
CA (1) | CA2180559A1 (en) |
WO (1) | WO1995019049A1 (en) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU1597895A (en) * | 1994-01-06 | 1995-08-01 | Cardiometrics, Inc. | Ultrasonic transducer with selectable beamwidth and method |
DE29708338U1 (en) * | 1997-05-12 | 1998-09-17 | Dwl Elektron Systeme Gmbh | Multifrequency ultrasound probe |
DK176073B1 (en) * | 1998-03-03 | 2006-04-03 | Limiel Aps | Piezoelectric transformer |
JP4154043B2 (en) * | 1998-10-15 | 2008-09-24 | ジーイー横河メディカルシステム株式会社 | Ultrasonic imaging device |
WO2000030554A1 (en) | 1998-11-20 | 2000-06-02 | Jones Joie P | Methods for selectively dissolving and removing materials using ultra-high frequency ultrasound |
US6312380B1 (en) * | 1998-12-23 | 2001-11-06 | Radi Medical Systems Ab | Method and sensor for wireless measurement of physiological variables |
US6540683B1 (en) | 2001-09-14 | 2003-04-01 | Gregory Sharat Lin | Dual-frequency ultrasonic array transducer and method of harmonic imaging |
US6476902B1 (en) * | 2001-11-29 | 2002-11-05 | Eastman Kodak Company | Liquid crystal display and method of making same |
US6871148B2 (en) * | 2002-07-02 | 2005-03-22 | Battelle Memorial Institute | Ultrasonic system and technique for fluid characterization |
US7139613B2 (en) * | 2002-09-25 | 2006-11-21 | Medtronic, Inc. | Implantable medical device communication system with pulsed power biasing |
US7013178B2 (en) * | 2002-09-25 | 2006-03-14 | Medtronic, Inc. | Implantable medical device communication system |
US8335555B2 (en) | 2003-05-30 | 2012-12-18 | Lawrence Livermore National Security, Llc | Radial reflection diffraction tomography |
US20050159801A1 (en) * | 2004-01-16 | 2005-07-21 | Medtronic, Inc. | Novel implantable lead including sensor |
US7286884B2 (en) | 2004-01-16 | 2007-10-23 | Medtronic, Inc. | Implantable lead including sensor |
US8277386B2 (en) * | 2004-09-27 | 2012-10-02 | Volcano Corporation | Combination sensor guidewire and methods of use |
JP4734657B2 (en) * | 2005-06-16 | 2011-07-27 | 国立大学法人 岡山大学 | Transducer and measuring device provided with the transducer |
EP1923145A1 (en) * | 2006-11-15 | 2008-05-21 | Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO | Remote ultrasonic transducer system |
US8169122B1 (en) * | 2006-12-15 | 2012-05-01 | Dxna Llc | Ultra sonic release of DNA or RNA |
KR20100015782A (en) * | 2007-03-21 | 2010-02-12 | 더 유니버시티 오브 버몬트 앤드 스테이트 어그리컬처럴 칼리지 | Piezoelectric vibrational energy harvesting systems incorporating parametric bending mode energy harvesting |
DK2263808T3 (en) | 2009-06-19 | 2014-06-10 | Sonovia Holdings Llc | Dual-Frequency ultrasonic transducer |
WO2011029094A2 (en) | 2009-09-04 | 2011-03-10 | The University Of North Carolina At Chapel Hill | Systems, methods, and computer readable media for high- frequency contrast imaging and image-guided therapeutics |
GB2473265A (en) * | 2009-09-07 | 2011-03-09 | Sonovia Ltd | Flexible PCB mounting for ultrasonic transducers |
US8396563B2 (en) | 2010-01-29 | 2013-03-12 | Medtronic, Inc. | Clock synchronization in an implantable medical device system |
WO2012048335A2 (en) | 2010-10-08 | 2012-04-12 | The University Of North Carolina At Chapel Hill | Formulation of acoustically activatable particles having low vaporization energy and methods for using same |
EP2856098B1 (en) | 2012-05-25 | 2019-10-16 | Vascular Imaging Corporation | Optical fiber pressure sensor |
JP5334342B1 (en) * | 2012-08-15 | 2013-11-06 | 株式会社ソニック | Weighing fish finder |
EP2713196A1 (en) * | 2012-09-27 | 2014-04-02 | poLight AS | Deformable lens having piezoelectric actuators arranged with an interdigitated electrode configuration |
WO2014055832A1 (en) | 2012-10-04 | 2014-04-10 | The University Of North Carolina At Chapel Hill | Methods and systems for using encapsulated microbubbles to process biological samples |
US10327645B2 (en) | 2013-10-04 | 2019-06-25 | Vascular Imaging Corporation | Imaging techniques using an imaging guidewire |
US10537255B2 (en) | 2013-11-21 | 2020-01-21 | Phyzhon Health Inc. | Optical fiber pressure sensor |
CN103736690B (en) * | 2013-12-31 | 2018-12-18 | 上海集成电路研发中心有限公司 | silicon wafer cleaning method |
KR101586433B1 (en) * | 2014-10-23 | 2016-01-19 | 한양대학교 산학협력단 | Ultrasonic transducer using light and method for controlling the same |
US10258240B1 (en) | 2014-11-24 | 2019-04-16 | Vascular Imaging Corporation | Optical fiber pressure sensor |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1907425A (en) * | 1928-12-19 | 1933-05-09 | Bell Telephone Labor Inc | Piezo electric resonator |
US3136381A (en) * | 1960-05-03 | 1964-06-09 | Halliburton Co | Directed acoustic velocity logging |
US3735159A (en) * | 1972-01-24 | 1973-05-22 | E Murry | Method and apparatus for translating ultrasonic energy |
US4123681A (en) * | 1974-08-29 | 1978-10-31 | The United States Of America As Represented By The Secretary Of The Navy | Wide band proportional transducer array |
US5059851A (en) * | 1990-09-06 | 1991-10-22 | Cardiometrics, Inc. | Miniature ultrasound high efficiency transducer assembly, guidewire using the same and method |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4807636A (en) * | 1986-09-09 | 1989-02-28 | Vital Science Corporation | Method and apparatus for measuring volume fluid flow |
AU1597895A (en) * | 1994-01-06 | 1995-08-01 | Cardiometrics, Inc. | Ultrasonic transducer with selectable beamwidth and method |
-
1995
- 1995-01-05 AU AU15978/95A patent/AU1597895A/en not_active Abandoned
- 1995-01-05 EP EP95907977A patent/EP0738427A4/en not_active Withdrawn
- 1995-01-05 CA CA002180559A patent/CA2180559A1/en not_active Abandoned
- 1995-01-05 WO PCT/US1995/000086 patent/WO1995019049A1/en not_active Application Discontinuation
- 1995-01-05 JP JP7518577A patent/JPH09508242A/en active Pending
- 1995-05-23 US US08/447,993 patent/US5581144A/en not_active Expired - Lifetime
-
1996
- 1996-12-02 US US08/759,054 patent/US5740596A/en not_active Expired - Lifetime
-
1998
- 1998-02-18 US US09/025,540 patent/US6025670A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1907425A (en) * | 1928-12-19 | 1933-05-09 | Bell Telephone Labor Inc | Piezo electric resonator |
US3136381A (en) * | 1960-05-03 | 1964-06-09 | Halliburton Co | Directed acoustic velocity logging |
US3735159A (en) * | 1972-01-24 | 1973-05-22 | E Murry | Method and apparatus for translating ultrasonic energy |
US4123681A (en) * | 1974-08-29 | 1978-10-31 | The United States Of America As Represented By The Secretary Of The Navy | Wide band proportional transducer array |
US5059851A (en) * | 1990-09-06 | 1991-10-22 | Cardiometrics, Inc. | Miniature ultrasound high efficiency transducer assembly, guidewire using the same and method |
Also Published As
Publication number | Publication date |
---|---|
US6025670A (en) | 2000-02-15 |
EP0738427A1 (en) | 1996-10-23 |
EP0738427A4 (en) | 1999-02-03 |
US5740596A (en) | 1998-04-21 |
US5581144A (en) | 1996-12-03 |
JPH09508242A (en) | 1997-08-19 |
AU1597895A (en) | 1995-08-01 |
CA2180559A1 (en) | 1995-07-13 |
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