JP2009505695A - 微細加工された撮像トランスデューサ - Google Patents
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Images
Classifications
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- 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
- B06B1/0629—Square array
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/13—Tomography
- A61B8/14—Echo-tomography
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/85—Piezoelectric or electrostrictive active materials
- H10N30/853—Ceramic compositions
-
- 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
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
- A61B8/445—Details of catheter construction
-
- 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
Abstract
Description
次のステップ350において、切溝部345に、Epo−Tek−301などのエポキシ355を充填する。切溝部345内において空泡を除去するとともにボイドを防止するために、真空(図示せず)を用いてもよい。次のステップ360において、プレート315の最上部およびエポキシ355を約40μmの厚さまでラップ仕上げする。そして、次のステップ370において、プレート315に電極パターン375を施して、撮像トランスデューサ・パターンを形成する。電極パターン375は、金(Au)、およびクロム(Cr)で構成されていることが好ましい。さらに、当業者であれば理解できるように、撮像処理回路(図示せず)などの電子回路を電極375に接続することが可能である。また、プレート315上に形成された電極パターン375は、例えば、各柱部347における撮像トランスデューサのアレイ、あるいは単一の撮像トランスデューサを含む、撮像トランスデューサのあらゆるパターンを形成することができる。プレート315の裏面には、エポキシ層377を塗布してもよい。
Claims (27)
- 撮像カテーテル内に配置されるように構成された撮像装置であって、
基端および末端を有する駆動軸と、
前記駆動軸に連結された撮像トランスデューサ・アセンブリとを備えており、
前記撮像トランスデューサ・アセンブリは、一つ以上の撮像トランスデューサを備えており、
前記一つ以上の撮像トランスデューサは、フォトリソグラフィによる微細加工を施した圧電複合材プレートから構成されている、撮像装置。 - 前記一つ以上の撮像トランスデューサのうち少なくとも一つは、2−2の構造または1−3の構造となっている、請求項1に記載の撮像装置。
- 前記フォトリソグラフィによる微細加工を施した圧電複合材プレートは、単結晶圧電性物質で構成されている、請求項1に記載の撮像装置。
- 前記撮像トランスデューサは、複数の柱部を備えており、
前記複数の柱部は、少なくとも2:1のアスペクト比をそれぞれ有する、請求項1に記載の撮像装置。 - 前記一つ以上の撮像トランスデューサは、一次元アレイの撮像トランスデューサまたは二次元アレイの撮像トランスデューサのいずれかである、請求項1に記載の撮像装置。
- 前記一つ以上の撮像トランスデューサは、前方を向いている、請求項1に記載の撮像装置。
- 前記一つ以上の撮像トランスデューサは、環状アレイを形成する、請求項1に記載の撮像装置。
- 前記一つ以上の撮像トランスデューサは、少なくとも20MHzの周波数で動作する、請求項1の撮像装置。
- 前記一つ以上の撮像トランスデューサは、少なくとも100MHzの周波数で動作する、請求項1に記載の撮像装置。
- 前記一つ以上の撮像トランスデューサは、少なくとも80%の動作帯域幅を有する、請求項1に記載の撮像装置。
- 前記一つ以上の撮像トランスデューサは、複数の柱部および切溝部を備えており、
前記複数の柱部は、約3〜36μmの範囲内の幅をそれぞれ有する一方、前記複数の切溝部は、約1〜15μmの範囲内の幅をそれぞれ有する、請求項1に記載の撮像装置。 - 一つ以上の撮像トランスデューサを製造する方法であって、
フォトリソグラフィによる微細加工を用いて圧電材料プレート上に複数の柱部を形成するステップと、
前記複数の柱部を取り囲む複数の切溝部に高分子材料を充填するステップとを備えている、方法。 - 前記圧電材料プレートにラップ仕上げを施すステップをさらに備えている、請求項12に記載の方法。
- 前記圧電材料プレートに電極を形成するステップをさらに備えている、請求項12に記載の方法。
- 前記フォトリソグラフィによる微細加工を用いて圧電材料プレート上に複数の柱部を形成するステップは、反応性イオンエッチング法の使用を含む、請求項12に記載の方法。
- 前記フォトリソグラフィによる微細加工を用いて圧電複合材プレート上に複数の柱部を形成するステップは、前記プレートの前記複数の柱部を形成する部分上に、ハードマスクを形成するステップをさらに備えている、請求項12に記載の方法。
- 前記ハードマスクは、ニッケルおよび白金のうち少なくともいずれか一つで構成されている、請求項16に記載の方法。
- 前記圧電材料プレートは、単結晶構造または多結晶構造を有する、請求項12に記載の方法。
- 前記圧電材料プレートは、PZTセラミック、PMN−PT単結晶、およびPZN−PT単結晶のうち少なくともいずれか一つで構成されている、請求項12に記載の方法。
- 前記一つ以上の撮像トランスデューサは、少なくとも20MHzの周波数で動作する、請求項12に記載の方法。
- 前記一つ以上の撮像トランスデューサのうち少なくとも一つは、2−2の構成または1−3の構成となっている、請求項12に記載の方法。
- 前記一つ以上の撮像トランスデューサは、超音波トランスデューサである、請求項12に記載の方法。
- 前記一つ以上の撮像トランスデューサは、一次元アレイの撮像トランスデューサおよび二次元アレイの撮像トランスデューサのいずれかである、請求項12に記載の方法。
- 前記一つ以上の撮像トランスデューサは、環状アレイを形成する、請求項12に記載の方法。
- 前記一つ以上の撮像トランスデューサは、複数の柱部および切溝部を備えており、
前記複数の柱部は、約3〜36μmの範囲内の幅をそれぞれ有する一方、前記複数の切溝部は、約1〜15μmの範囲内の幅をそれぞれ有する、請求項12に記載の方法。 - 前記一つ以上の撮像トランスデューサは、少なくとも20MHzの周波数で動作する、請求項12に記載の方法。
- 前記一つ以上の撮像トランスデューサは、少なくとも80%の動作帯域幅を有する、請求項12に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/202,674 US7622853B2 (en) | 2005-08-12 | 2005-08-12 | Micromachined imaging transducer |
PCT/US2006/030596 WO2007021618A2 (en) | 2005-08-12 | 2006-08-03 | Micromachined imaging transducer |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2009505695A true JP2009505695A (ja) | 2009-02-12 |
Family
ID=37728313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008526095A Pending JP2009505695A (ja) | 2005-08-12 | 2006-08-03 | 微細加工された撮像トランスデューサ |
Country Status (5)
Country | Link |
---|---|
US (3) | US7622853B2 (ja) |
EP (1) | EP1922155A2 (ja) |
JP (1) | JP2009505695A (ja) |
CA (1) | CA2618250A1 (ja) |
WO (1) | WO2007021618A2 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2012527964A (ja) * | 2009-05-29 | 2012-11-12 | ボストン サイエンティフィック サイムド,インコーポレイテッド | カテーテルベースの撮像システムのためのデータ管理システムを実施するためのシステム及び方法 |
JP2015153850A (ja) * | 2014-02-13 | 2015-08-24 | 株式会社サイオクス | 圧電体薄膜素子、その製造方法、および該圧電体薄膜素子を用いた電子デバイス |
JP2016507273A (ja) * | 2012-12-21 | 2016-03-10 | ヴォルカノ コーポレイションVolcano Corporation | 単結晶複合材料を使用した集束回転ivusトランスデューサ |
WO2017141996A1 (ja) * | 2016-02-18 | 2017-08-24 | コニカミノルタ株式会社 | 圧電素子の製造方法及び圧電素子 |
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Also Published As
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WO2007021618A2 (en) | 2007-02-22 |
WO2007021618A3 (en) | 2007-08-02 |
US20090029295A1 (en) | 2009-01-29 |
US20100076318A1 (en) | 2010-03-25 |
US7622853B2 (en) | 2009-11-24 |
US20070038111A1 (en) | 2007-02-15 |
EP1922155A2 (en) | 2008-05-21 |
CA2618250A1 (en) | 2007-02-22 |
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