专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2009077961A3 COLLAPSED MODE OPERABLE CMUT INCLUDING CONTOURED SUBSTRATE 审中-公开
标题翻译：收缩模式可操作，包括嵌入式基板
公开(公告)号：WO2009077961A3
公开(公告)日：2010-09-02
申请号：PCT/IB2008055279
申请日：2008-12-12
申请人： KONINKL PHILIPS ELECTRONICS NV , PETRUZZELLO JOHN , FRASER JOHN DOUGLAS , ZHOU SHIWEI , DUFORT BENOIT , LETAVIC THEODORE JAMES
发明人： PETRUZZELLO JOHN , FRASER JOHN DOUGLAS , ZHOU SHIWEI , DUFORT BENOIT , LETAVIC THEODORE JAMES
IPC分类号： B06B1/02
CPC分类号： B06B1/0292
摘要： A capacitive ultrasound transducer capable of operation in collapsed mode either with a reduced bias voltage, or with no bias voltage, is provided. The transducer includes a substrate that is contoured so that a middle region of the flexible membrane is collapsed against the substrate in the absence of a bias voltage. A non-collapsible gap may exists between the substrate and peripheral regions of the flexible membrane. The contour of the substrate may be such as to strain the flexible membrane past the point of collapse, or to mechanically interfere with the flexible membrane. The substrate may include a further membrane disposed beneath the flexible membrane, the further membrane being contoured so that the flexible membrane is collapsed against it. The substrate may a support disposed beneath the further membrane to deflect a corresponding portion of the further membrane upward toward the flexible membrane. The support may be a post. The transducer may be operated in collapse mode with an improved efficiency (k2 eff) as compared to otherwise similar conventional transducers exhibiting comparably uncontoured substrates. A related medical imaging system is provided, which may include an array of such transducers disposed on a common substrate. A method of operating such a transducer is provided that includes operating the transducer in the collapse mode in the absence of a bias voltage.
摘要翻译：提供能够以折叠模式操作或者具有降低的偏置电压或没有偏置电压的电容式超声换能器。换能器包括基底，该基底的轮廓使得柔性膜的中间区域在没有偏置电压的情况下相对于基底折叠。在柔性膜的基底和周边区域之间可能存在不可收缩的间隙。衬底的轮廓可以是使柔性膜经过塌陷点，或机械地干涉柔性膜。衬底可以包括设置在柔性膜下方的另一膜，另外的膜被成形为使得柔性膜相对于其折叠。衬底可以是设置在另外的膜下方的支撑件，以将另外的膜的相应部分向上朝向柔性膜偏转。支持可能是一个帖子。传感器可以在崩溃模式下操作，与具有相当的未构图基底的其它相似的传统换能器相比，效率（k 2 eff）提高。提供了一种相关的医学成像系统，其可以包括设置在公共基底上的这种换能器阵列。提供了一种操作这种换能器的方法，其包括在没有偏置电压的情况下以折叠模式操作换能器。

2. 发明申请

WO2010146532A3 IMAGING SYSTEM FOR IMAGING A VISCOELASTIC MEDIUM 审中-公开
标题翻译：用于成像粘贴介质的成像系统
公开(公告)号：WO2010146532A3
公开(公告)日：2012-01-19
申请号：PCT/IB2010052668
申请日：2010-06-15
申请人： KONINKL PHILIPS ELECTRONICS NV , SHAHZAD KHALID , ANAND AJAY , PETRUZZELLO JOHN , ZHOU SHIWEI , SUIJVER JAN FREDERIK
发明人： SHAHZAD KHALID , ANAND AJAY , PETRUZZELLO JOHN , ZHOU SHIWEI , SUIJVER JAN FREDERIK
IPC分类号： G10K11/30 , A61B8/00
CPC分类号： G10K11/30 , A61B5/0053 , A61B8/12 , A61B8/4281 , A61B8/445 , A61B18/1492 , A61B2090/378 , G01S15/8911
摘要： An imaging system for imaging a viscoelastic medium is disclosed. The imaging system comprises a variable refractive lens (4) and a transducer system (5) for generating acoustic radiation. The imaging system is operated to alternate between first and second operating modes. While the variable refractive lens is operated to alternate between a first configuration and a second configuration, the transducer is operated to alternate between generating acoustic radiation for displacing the viscoelastic medium and acoustic radiation for imaging the displacement of the viscoelastic medium. In embodiments the variable refractive lens is a fluid focus lens. Moreover, in embodiments, the imaging system is integrated with a catheter-based interaction modality, such as a tissue ablation modality.
摘要翻译：公开了一种用于对粘弹性介质进行成像的成像系统。成像系统包括可变折射透镜（4）和用于产生声辐射的换能器系统（5）。操作成像系统以在第一和第二操作模式之间交替。当可变折射透镜被操作以在第一配置和第二配置之间交替时，换能器被操作以在产生用于移动粘弹性介质的声辐射和用于成像粘弹介质的位移成像的声辐射之间交替。在实施例中，可变折射透镜是流体聚焦透镜。此外，在实施例中，成像系统与基于导管的相互作用模式（例如组织消融模态）整合。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式