血管内診断のための超音波探触子及びその製造方法
    61.
    发明申请
    血管内診断のための超音波探触子及びその製造方法 审中-公开
    用于血管造影诊断的超声探头及其制造方法

    公开(公告)号:WO2008108015A1

    公开(公告)日:2008-09-12

    申请号:PCT/JP2007/067482

    申请日:2007-09-07

    Abstract:  脳内の血管などの非常に細い血管などにカテーテルプローブ先端を通すことができるように外径を小さくし、且つ、高品質・高分解の超音波画像を提供できるように、複数のトランスデューサ素子を備える超音波探触子をその製造方法を提供する。本発明の超音波探触子は、1つの観点からは、円柱状に形成されたダンパー部と、該ダンパー部の側面にN個(Nは2以上)の溝が設けられ、該溝には導電性樹脂材料が充填されており、またダンパー部の上面には、第1の電極と1-3コンポジット構造の圧電セラミックスアレイと第2の電極が積層され、且つ、第1の電極が略等分となるように扇形にN分割されている構成を有する。

    Abstract translation: 一种超声波探头,其外径减小,使得导管探头的远端可以插入到诸如脑中的血管的非常薄的血管中,并且设置有多个换能器元件,使得 可以提供高质量的高分辨率超声波图像。 还提供其制造方法。 从一个观点出发,超声波探头具有柱状阻尼器部分和设置在阻尼器部分的侧面中并且填充有导电树脂材料的N(N是2或更大)的沟槽。 第一电极,1-3复合结构的压电陶瓷阵列和第二电极分别形成在阻尼部分的上表面上,并且第一电极基本上等分成N个扇形扇区。

    REAL-TIME 3-D ULTRASOUND GUIDANCE OF SURGICAL ROBOTICS

    公开(公告)号:WO2008063249A9

    公开(公告)日:2008-08-14

    申请号:PCT/US2007015780

    申请日:2007-07-11

    Abstract: Laparoscopic ultrasound has seen increased use as a surgical aide in general, gynecological, and urological procedures. The application of real-time three-dimensional (RT3D) ultrasound to these laparoscopic procedures may increase information available to the surgeon and serve as an additional intraoperative guidance tool. The integration of RT3D with recent advances in robotic surgery can also increase automation and ease of use. In one non- limiting exemplary implementation, a 1 cm diameter probe for RT3D has been used laparoscopically for in vivo imaging of a canine. The probe, which operates at 5 MHz, was used to image the spleen, liver, and gall bladder as well as to guide surgical instruments. Furthermore, the 3D measurement system of the volumetric scanner used with this probe was tested as a guidance mechanism for a robotic linear motion system in order to simulate the feasibility of RT3D/robotic surgery integration. Using images acquired with the 3D laparoscopic ultrasound device, coordinates were acquired by the scanner and used to direct a robotically controlled needle towards desired in vitro targets as well as targets in a post- mortem canine. The RMS error for these measurements was 1.34 mm using optical alignment and 0.76 mm using ultrasound alignment.

    ENHANCED ULTRASOUND IMAGING PROBES USING FLEXURE MODE PIEZOELECTRIC TRANSDUCERS
    63.
    发明申请
    ENHANCED ULTRASOUND IMAGING PROBES USING FLEXURE MODE PIEZOELECTRIC TRANSDUCERS 审中-公开
    使用弯曲模式压电传感器增强超声波成像探头

    公开(公告)号:WO2008054395A1

    公开(公告)日:2008-05-08

    申请号:PCT/US2006/043061

    申请日:2006-11-03

    CPC classification number: A61B8/4488 A61B8/12 A61B8/4438 A61B8/445 B06B1/0622

    Abstract: A method of generating an enhanced receive signal from a piezoelectric ultrasound transducer is described. The method comprises providing a piezoelectric ultrasound transducer comprising a piezoelectric element operable in flexural mode, receiving a acoustic signal by the piezoelectric element, applying a DC bias to the piezoelectric element prior to receiving the acoustic signal and/or concurrently with receiving the acoustic signal, and generating an enhanced receive signal from the piezoelectric element as a result of receiving the acoustic signal by the piezoelectric element. pMUT-based imaging probes using the above method are also described.

    Abstract translation: 描述了从压电超声换能器产生增强的接收信号的方法。 该方法包括提供压电超声波换能器,其包括可弯曲模式操作的压电元件,通过压电元件接收声信号,在接收声信号之前和/或与接收声信号同时向压电元件施加DC偏压, 以及作为由压电元件接收声信号的结果,从压电元件产生增强的接收信号。 还描述了使用上述方法的基于pMUT的成像探针。

    HIGH INTENSITY FOCUSED ULTRASOUND FOR IMAGING AND TEATMENT OF ARRHYTHMIAS
    66.
    发明申请
    HIGH INTENSITY FOCUSED ULTRASOUND FOR IMAGING AND TEATMENT OF ARRHYTHMIAS 审中-公开
    高强度聚焦超声波成像和纹理的ARRHYTHMIAS

    公开(公告)号:WO2005117734A3

    公开(公告)日:2006-12-14

    申请号:PCT/US2005019183

    申请日:2005-05-26

    Abstract: A dual-mode, capable of imaging and ablation, ultrasound array (110) integrated in a catheter is provided for minimally invasive treatment of arrhythmias. The catheter array is small enough for insertion through a peripheral vein and is longitudinally integrated with the catheter to have a side-view for tissue imaging and ablation. A high length/width array ratio creates a large aperture necessary for high power ablation densities. A catheter stabilization device (150) maintains a distance between the catheter array and the wall of a heart or vein. Visualization of anatomy and imaging of ablated tissue provides a guide for placing the lesion and assists in achieving a pattern of ablated tissue. The catheter is advanced to another area by catheter rotation and/or array steering or focusing. Gating the imaging and ablation processes to a heart cycle allows for accounting and compensation of heart motion and enables automation of an arrhythmia treatment.

    Abstract translation: 提供集成在导管中的能够成像和消融的双重模式的超声阵列(110)用于微创治疗心律失常。 导管阵列足够小以插入通过外周静脉并且与导管纵向一体地具有用于组织成像和消融的侧视图。 高长度/宽度的阵列比率产生大功率消融密度所需的大孔径。 导管稳定装置(150)保持导管阵列与心脏或静脉壁之间的距离。 消融组织的解剖学和成像的可视化提供了放置病变的指导并且帮助实现消融组织的图案。 导管通过导管旋转和/或阵列转向或聚焦而前进到另一个区域。 将成像和消融过程门控到心脏周期允许心脏运动的记帐和补偿,并实现心律失常治疗的自动化。

    METHODS AND SYSTEMS FOR ULTRASOUND IMAGING OF THE HEART FROM THE PERICARDIUM
    67.
    发明申请
    METHODS AND SYSTEMS FOR ULTRASOUND IMAGING OF THE HEART FROM THE PERICARDIUM 审中-公开
    心脏超声成像的方法和系统

    公开(公告)号:WO2005084224A2

    公开(公告)日:2005-09-15

    申请号:PCT/US2005006053

    申请日:2005-02-28

    Inventor: JENKINS DAVID A

    CPC classification number: A61B8/02 A61B8/0883 A61B8/0891 A61B8/12 A61B8/4488

    Abstract: A peritoneal ultrasound imager includes an elongated body less than about 20 inches in length that is adapted to be inserted through a cannula into or near the pericardium space, and an ultrasound transducer array at one end of the body that is suitable for ultrasound echocardiography. The cannula and ultrasound imager may be of a single piece construction. A method for imaging the heart includes introducing a cannula into the wall of a patient's chest, inserting the elongated body into the cannula, moving the inserted elongated body to a position near the heart, and imaging the heart with ultrasound echo.

    Abstract translation: 腹膜超声成像器包括长度小于约20英寸的细长体,其适于通过套管插入到心包空间中或附近,以及超声换能器阵列,其位于身体的一端,其适合于超声超声心动图。 插管和超声波成像器可以是单件结构。 用于对心脏进行成像的方法包括将套管引入患者胸部的壁中,将细长体插入插管中,将插入的细长体移动到靠近心脏的位置,并用超声回波对心脏进行成像。

    TRANSESOPHAGEAL ULTRASOUND USING A NARROW PROBE
    69.
    发明申请
    TRANSESOPHAGEAL ULTRASOUND USING A NARROW PROBE 审中-公开
    经窄探头超声食管超声检查

    公开(公告)号:WO2005053540A2

    公开(公告)日:2005-06-16

    申请号:PCT/US2004/039441

    申请日:2004-11-24

    Abstract: Transesophageal echocardiography is implemented using a miniature transversely oriented transducer that is preferably small enough to fit in a 7.5 mm diameter probe, and most preferably small enough to fit in a 5 mm diameter probe. Signal processing techniques improve the depth of penetration to the point where the complete trans-gastric short axis view of the left ventricle can be obtained, despite the fact that the transducer is so small. The reduced diameter of the probe (as compared to prior art probes) reduces risks to patients, reduces or eliminates the need for anesthesia, and permits long term direct-visualization monitoring of patients' cardiac function.

    Abstract translation: 经食管超声心动图是使用微型横向取向的换能器实现的,该换能器优选足够小以适合7.5mm直径探针,并且最优选足够小以适合5mm直径探针。 尽管换能器非常小,但信号处理技术将穿透深度提高到可以获得左心室的完整的跨胃短轴视图的程度。 探针直径的减小(与现有技术探针相比)降低了对患者的风险,减少或消除了对麻醉的需要,并允许对患者心脏功能进行长期直观显示监测。

    ULTRASONIC IMAGING DEVICES AND METHODS OF FABRICATION
    70.
    发明申请
    ULTRASONIC IMAGING DEVICES AND METHODS OF FABRICATION 审中-公开
    超声成像装置和制造方法

    公开(公告)号:WO2004021404A8

    公开(公告)日:2005-05-19

    申请号:PCT/US0327006

    申请日:2003-08-27

    Abstract: A sensor (16) for an ultrasound imaging catheter (12) and methods of fabrication are provided. The sensor (16) may be based on a flex circuit (32) on which a block of piezoelectric sensor array transducer material is mounted. The flex circuit may include electrical conductors (34) that are electrically connected to electrodes on the piezoelectric blocks. A matching layer may be formed on the piezoelectric blocks between the blocks and the flex circuit substrate. Individual transducer array elements may be formed by dividing a piezoelectric block into a plurality of individual transducer elements after the matching layer has been formed. Cuts may be formed in the flex circuit substrate between adjacent transducer array elements to acoustically decouple adjacent elements. The flex circuit substrate and matching layers may have relatively high impedance to facilitate acoustic impedance matching between the sensor and the imaging environment.

    Abstract translation: 提供了一种用于超声成像导管(12)的传感器(16)和制造方法。 传感器(16)可以基于安装有压电传感器阵列换能器材料块的柔性电路(32)。 柔性电路可以包括电连接到压电块上的电极的电导体(34)。 可以在块和柔性电路基板之间的压电块上形成匹配层。 各个换能器阵列元件可以通过在形成匹配层之后将压电块划分成多个单独的换能器元件来形成。 可以在相邻换能器阵列元件之间的柔性电路基板中形成切口,以使相邻元件声学解耦。 柔性电路衬底和匹配层可以具有相对高的阻抗,以便于传感器和成像环境之间的声阻抗匹配。

Patent Agency Ranking