公开(公告)号：WO2015028949A2

公开(公告)日：2015-03-05

申请号：PCT/IB2014064085

申请日：2014-08-27

Applicant: KONINKL PHILIPS NV

Inventor： DAVIDSEN RICHARD EDWARD ,  SONG JUNHO

IPC: B06B1/02

CPC classification number: B06B1/0292 ,  B06B1/0207 ,  B06B2201/76 ,  G01S7/52047 ,  G01S7/5208 ,  G01S15/8925

Abstract: An ultrasonic diagnostic imaging system includes a CMUT transducer probe with an array of CMUT cells that can be configured to operate in different frequency ranges and with different acoustic element pitches for different clinical applications. The frequency response of the CMUT cells can be tailored for different clinical applications by increasing the DC bias voltage for higher frequency clinical applications, or decreasing the DC bias voltage for lower frequency applications. Individual acoustic elements including groups of CMUT cells can be configured to have a desired pitch that is optimal for the frequency being used for the imaging application.

Abstract translation: 超声诊断成像系统包括具有CMUT单元阵列的CMUT换能器探头，其可被配置为在不同的频率范围内操作，并且具有用于不同临床应用的不同的声学元件间距。 CMUT细胞的频率响应可以通过增加用于较高频率临床应用的DC偏置电压或降低用于较低频率应用的DC偏置电压来为不同的临床应用量身打造。 包括CMUT单元组的单个声学元件可被配置为具有对于用于成像应用的频率最佳的期望间距。

公开(公告)号：WO2015028945A2

公开(公告)日：2015-03-05

申请号：PCT/IB2014064079

申请日：2014-08-27

Applicant: KONINKL PHILIPS NV

Inventor： DAVIDSEN RICHARD EDWARD ,  SONG JUNHO

IPC: B06B1/02

CPC classification number: B06B1/0292 ,  A61B8/4483 ,  B06B1/0207 ,  B06B2201/76

Abstract: An ultrasonic diagnostic imaging system has a CMUT transducer probe with an array of CMUT cells operated in a collapsed mode during ultrasonic signal transmission and reception. The frequency response to the CMUT cells is tailored for different clinical applications or continuously varied during echo reception by decreasing the DC bias voltage for the CMUT cells for lower frequency clinical applications, increasing the DC bias voltage for higher frequency clinical applications, or continuously decreasing the DC bias voltage as echoes are received to track the information frequency composition of the returning echo signals.

Abstract translation: 超声波诊断成像系统具有在超声波信号发送和接收期间以折叠模式操作的CMUT单元阵列的CMUT换能器探针。 对CMUT细胞的频率响应是针对不同的临床应用而定制的，或者在回波接收期间连续变化，通过降低用于较低频率临床应用的CMUT细胞的DC偏置电压，增加用于较高频率临床应用的DC偏置电压，或连续降低 接收作为回波的DC偏置电压以跟踪返回的回波信号的信息频率组成。