JP6092109B2 - 凹面超音波トランスデューサ及び3dアレイ - Google Patents
凹面超音波トランスデューサ及び3dアレイ Download PDFInfo
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Description
本願は、米国特許法第119条に基づいて、引用により全容が本明細書中に組み込まれている2010年10月13日出願の「マルチアパーチャ方式医療用超音波トランスデューサ(Multiple Aperture Medical Ultrasound Transducer)」という名称の米国仮特許出願第61/392,896号の恩典を請求するものである。
本明細書で言及する全ての刊行物及び特許出願は、それぞれの刊行物又は特許出願が具体的かつ個々に引用により本明細書中に組み込まれると指示された場合と同様に、引用により本明細書中に組み込まれるものとする。
本発明は、全体として、医学の分野で使用されるイメージング技術に関し、より詳細には医療用超音波に関し、なおさらに詳細にはマルチアパーチャ方式で超音波画像を形成する装置に関する。
従来の超音波イメージングでは、超音波エネルギーの集束ビームを検査すべき体組織内に送波し、エコーを検出して、これをプロットして画像を形成する。心エコー検査法では、通常は、ビームを、中心プローブ位置から所定角度ずつ増分して、反射エコーを、送波した超音波ビームの経路を表す線に沿ってプロットする。腹部超音波検査法では、通常は、ビームを、横方向に段階的に移動させて、平行なビーム径路を形成し、そして反射エコーをそれらの径路を表す平行線に沿ってプロットする。
本明細書に記載する一部の実施態様は、2次元又は3次元の実質的に連続した凹状曲面形状(すなわち、イメージングされる物体に対して凹状)を有することができる超音波トランスデューサの連続したアレイを有する超音波プローブを設計する、製造する、及び使用するシステム並びに方法を提供する。本明細書に記載する他の実施態様は、他の独特な構成、例えば、調整可能なプローブ及び可変構造のプローブを有する超音波イメージングプローブを設計する、製造する、及び使用するシステム並びに方法を提供する。
Claims (6)
- 少なくとも1つの軸を中心とする凹面曲率を有する、連続する超音波トランスデューサアレイ;
第1の超音波周波数の非集束超音波パルスで散乱体を超音波照射するように構成された1つの送信要素を含む、前記超音波トランスデューサアレイにおける第1の送信アパーチャ;
前記散乱体からの超音波エコーを受信するように構成された、前記第1の送信アパーチャから離れて位置している、前記超音波トランスデューサアレイにおける第1の受信アパーチャ;
前記第1の超音波周波数とは異なる第2の超音波周波数の非集束超音波パルスで散乱体を超音波照射するように構成された1つの送信要素を含む、前記超音波トランスデューサアレイにおける第2の送信アパーチャ;
前記散乱体からの超音波エコーを受信するように構成された、前記第2の送信アパーチャ及び前記第1の受信アパーチャから離れて位置している、前記超音波トランスデューサアレイにおける第2の受信アパーチャ;及び
前記超音波トランスデューサアレイと電子通信する制御システムであって、前記第1の送信アパーチャ、前記第1の受信アパーチャ、前記第2の送信アパーチャ、及び前記第2の受信アパーチャの位置及び向きを表す校正データにアクセスするように構成され、さらに前記第1の受信アパーチャの受信要素により受信したエコーをコヒーレントに組み合わせ、第1の画像を形成し、かつ前記第2の受信アパーチャの受信要素により受信したエコーをコヒーレントに組み合わせ、第2の画像を形成するように構成され、かつ、また該第1の画像を該第2の画像とインコヒーレントに組み合わせることにより、超音波画像を形成するように構成されている、該制御システムを備える、超音波イメージングシステム。 - 前記超音波トランスデューサアレイが、少なくとも2つの軸を中心とする凹面曲率を有する、請求項1記載のシステム。
- 前記校正データが、前記制御システムに保存される、請求項1記載のシステム。
- 前記校正データが、前記制御システムから離れて保存される、請求項1記載のシステム。
- 前記校正データが、前記アレイと共にプローブハウジング内に収容されたチップに保存される、請求項1記載のシステム。
- 少なくとも1つの軸を中心とする凹面曲率を有する超音波トランスデューサアレイにおける、1つの送信要素を含む第1の送信アパーチャを用いて、非集束超音波パルスとして超音波エネルギーを散乱体に向けて送信する工程;
前記超音波トランスデューサアレイにおける、受信要素を含む第1の受信アパーチャで、前記散乱体からの超音波エコーを受信する工程;
前記超音波トランスデューサアレイにおける、受信要素を含む第2の受信アパーチャで、前記散乱体からの超音波エコーを受信する工程;
前記第1の送信アパーチャの前記1つの送信要素の位置及び向き、並びに、前記第1の受信アパーチャ及び前記第2の受信アパーチャの受信要素の位置及び向きを含む校正データを得る工程;
前記第1の受信アパーチャの受信要素により受信したエコーをコヒーレントに組み合わせる工程;
前記第1の受信アパーチャにより受信した、コヒーレントに組み合わせたエコーにより、第1の超音波画像を形成する工程;
前記第2の受信アパーチャの受信要素により受信したエコーをコヒーレントに組み合わせる工程;
前記第2の受信アパーチャにより受信した、コヒーレントに組み合わせたエコーにより、第2の超音波画像を形成する工程;及び
該第1の超音波画像と該第2の超音波画像とをインコヒーレントに組み合わせる工程;を含む、超音波イメージングの方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39289610P | 2010-10-13 | 2010-10-13 | |
US61/392,896 | 2010-10-13 | ||
PCT/US2011/055976 WO2012051308A2 (en) | 2010-10-13 | 2011-10-12 | Concave ultrasound transducers and 3d arrays |
Related Child Applications (1)
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