发明名称 |
Systems and methods for reducing secondary hot spots in a phased array focused ultrasound system |
摘要 |
System and methods for performing a therapeutic procedure using focused ultrasound include providing a piezoelectric transducer including a plurality of transducer elements, such as a concave concentric ring array or a liner array of transducer elements. Drive circuitry is coupled to the transducer for providing drive signals to the transducer elements at one of a plurality of discrete RF frequencies. A controller is coupled to the drive circuitry for periodically changing a frequency of the drive signals to one of the plurality of discrete frequencies, while controlling a phase component of the drive signals to maintain the focus of the transducer at a primary focal zone during a single sonication. |
申请公布号 |
AU5061701(A) |
申请公布日期 |
2001.11.07 |
申请号 |
AU20010050617 |
申请日期 |
2001.04.12 |
申请人 |
TXSONICS LTD. |
发明人 |
SHUKI VITEK;NAAMA BRENNER |
分类号 |
A61B18/00;A61B17/225;A61N7/00;A61N7/02;B06B1/02;G10K11/34;H01Q21/20;H04R3/00;H04R17/00 |
主分类号 |
A61B18/00 |
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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