发明名称 |
ULTRASONIC PROBE AND METHOD FOR MANUFACTURING THE SAME AND ULTRASONIC DIAGNOSTIC DEVICE |
摘要 |
An ultrasonic probe (2) comprises a cMUT chip (20), which has a plurality of vibration elements whose electromechanical coupling coefficient or the sensitivity changes depending on a bias voltage, and transmits/receives an ultrasonic wave; an acoustic lens (26) provided on the ultrasonic wave radiation side of the cMUT chip (20); a backing layer (22) provided on the back side of the cMUT chip (20) for absorbing propagation of the ultrasonic wave; an electric wiring portion (flexible substrate (72)), which is provided from the peripheral portion of the cMUT chip (20) to the side face of the backing layer (22) and has a signal pattern connected with the electrode of the cMUT chip (20) arranged thereon; and a housing (ultrasonic probe cover (25)) for containing the cMUT chip (20), the acoustic lens (26), the backing layer (22) and the electric wiring portion (flexible substrate (72)). A ground layer (conductive film (76)) of ground potential is provided on the ultrasonic wave radiation side of the cMUT chip (20). |
申请公布号 |
EP2130495(A4) |
申请公布日期 |
2012.03.28 |
申请号 |
EP20080720914 |
申请日期 |
2008.02.27 |
申请人 |
HITACHI MEDICAL CORPORATION |
发明人 |
SANO, SHUZO;SAKO, AKIFUMI;KOBAYASHI, TAKASHI;IZUMI, MIKIO |
分类号 |
A61B8/00;A61B8/13;G01N29/06;G01N29/22;G01N29/24;H04R17/00 |
主分类号 |
A61B8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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