JP5530145B2 - 超音波探触子 - Google Patents
超音波探触子 Download PDFInfo
- Publication number
- JP5530145B2 JP5530145B2 JP2009226580A JP2009226580A JP5530145B2 JP 5530145 B2 JP5530145 B2 JP 5530145B2 JP 2009226580 A JP2009226580 A JP 2009226580A JP 2009226580 A JP2009226580 A JP 2009226580A JP 5530145 B2 JP5530145 B2 JP 5530145B2
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- Prior art keywords
- matching
- acoustic impedance
- composite
- matching portion
- acoustic
- 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.)
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- 239000000523 sample Substances 0.000 title claims description 13
- 239000002131 composite material Substances 0.000 claims description 38
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- 238000000034 method Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 6
- 238000002604 ultrasonography Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
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- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
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- 239000010419 fine particle Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
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- 239000002245 particle Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Images
Landscapes
- Ultra Sonic Daignosis Equipment (AREA)
- Transducers For Ultrasonic Waves (AREA)
Description
Claims (1)
- 超音波の送受波を行う振動子部と、
前記振動子部の上面側に設けられ、それ全体として傾斜した音響インピーダンス変化特性を有する連結整合部と、
を含み、
前記連結整合部は、上下方向に連結された上側の複合型整合部及び下側の積層型整合部を有し、
前記積層型整合部の上面が前記複合型整合部の下面に接合され、
前記複合型整合部は、互いに異なる音響インピーダンスを有する傾斜用第1部材及び傾斜用第2部材を有し、上下方向に前記傾斜用第1部材及び前記傾斜用第2部材の構成割合が連続的に変化する複合構造を備え、
前記積層型整合部は、互いに異なる音響インピーダンスを有する複数の整合層が上下方向に積層されてなる積層構造を備え、
前記積層型整合部を構成する前記複数の整合層の音響インピーダンスは最下整合層から最上整合層にかけて段階的に低くなり、
前記積層型整合部における最上整合層の音響インピーダンスと、前記複合型整合部の下面付近の音響インピーダンスとが実質同一又は近似関係にあり、
前記複合型整合部においては下から上へ音響インピーダンスが連続的に低くなり、
前記連結整合部の音響インピーダンス変化特性において、前記振動子部に近い側の一部が階段状であり、そこから生体側にかけてなだらかである、
ことを特徴とする超音波探触子。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009226580A JP5530145B2 (ja) | 2009-09-30 | 2009-09-30 | 超音波探触子 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009226580A JP5530145B2 (ja) | 2009-09-30 | 2009-09-30 | 超音波探触子 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011077789A JP2011077789A (ja) | 2011-04-14 |
JP5530145B2 true JP5530145B2 (ja) | 2014-06-25 |
Family
ID=44021303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009226580A Active JP5530145B2 (ja) | 2009-09-30 | 2009-09-30 | 超音波探触子 |
Country Status (1)
Country | Link |
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JP (1) | JP5530145B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10265047B2 (en) * | 2014-03-12 | 2019-04-23 | Fujifilm Sonosite, Inc. | High frequency ultrasound transducer having an ultrasonic lens with integral central matching layer |
KR102611563B1 (ko) * | 2021-05-18 | 2023-12-12 | 한국기계연구원 | 임피던스 매칭 부재 및 이의 제조 방법 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3964508B2 (ja) * | 1997-09-19 | 2007-08-22 | 株式会社日立メディコ | 超音波探触子及び超音波診断装置 |
US6936009B2 (en) * | 2001-02-27 | 2005-08-30 | General Electric Company | Matching layer having gradient in impedance for ultrasound transducers |
JP3655860B2 (ja) * | 2001-09-27 | 2005-06-02 | アロカ株式会社 | 超音波探触子 |
JP2006174991A (ja) * | 2004-12-22 | 2006-07-06 | Matsushita Electric Ind Co Ltd | 超音波探触子 |
JP4530836B2 (ja) * | 2004-12-22 | 2010-08-25 | パナソニック株式会社 | 超音波探触子 |
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2009
- 2009-09-30 JP JP2009226580A patent/JP5530145B2/ja active Active
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JP2011077789A (ja) | 2011-04-14 |
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