ACOUSTIC WAVE RECEPTION DEVICE

• Main Author: NISHIHARA YUTAKA
• Format: Patent
• Language: English; Japanese
• Published: 16.11.2017
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

PROBLEM TO BE SOLVED: To provide a technique for performing excellent imaging in an acoustic wave reception device which performs photoacoustic imaging and ultrasonic echo imaging.SOLUTION: An acoustic wave reception device comprises: a light irradiation unit which irradiates a target region with light; a reception array made by arranging a plurality of reception elements which receive a photoacoustic wave caused by the light irradiation to output a photoacoustic signal; a transmission/reception array including a plurality of transceiver elements which transmit a supersonic wave to the target region and receive an echo wave of the supersonic wave reflected by the target region to output an ultrasonic signal; an array support part including a first part which supports the reception array to form an effective reception area where oriented axes of the reception array are gathered and a second part which supports the transmission/reception array; and a scan unit which integrally scans the reception array and the transmission/reception array with respect to the target area by moving the array support part. The array support part is constituted so that the effective reception area formed by the reception array is not overlapped with a convergence area of the transmission/reception array.SELECTED DRAWING: Figure 1 【課題】光音響撮像および超音波エコー撮像を行う音響波受信装置において、良好な撮像を行うための技術を提供する。【解決手段】被検部に光を照射する光照射部と、光照射により発生する光音響波を受信して光音響信号を出力する複数の受信素子を備える受信アレイと、超音波を被検部に送信し、超音波が被検部で反射されたエコー波を受信して超音波信号を出力する複数の送受信素子を備える送受信アレイと、受信アレイの指向軸が集まる有効受信領域が形成されるように受信アレイを支持する第１の部分と、送受信アレイを支持する第２の部分と、を備えるアレイ支持部と、アレイ支持部を移動させることにより、被検部に対して受信アレイと送受信アレイを一体的に走査する走査部を有し、アレイ支持部は、受信アレイが形成する有効受信領域と、送受信アレイの集束領域とが重ならないように構成される音響波受信装置を用いる。【選択図】図１