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    • 1. 发明申请
    • ADJUSTABLE LENS SYSTEM FOR REAL-TIME APPLICATIONS
    • 可调镜头系统实时应用
    • WO2009077939A1
    • 2009-06-25
    • PCT/IB2008/055205
    • 2008-12-10
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.SUIJVER, Jan, F.HALL, Christopher, S.FERNANDEZ, Anna, T.KUIPER, SteinSHI, Yan, S.
    • SUIJVER, Jan, F.HALL, Christopher, S.FERNANDEZ, Anna, T.KUIPER, SteinSHI, Yan, S.
    • G02B3/14
    • G02B3/14
    • An adjustable fluid type lens system is provided that allows e.g. ultrasound imaging through the lens during adjustment of the lens. The lens includes a container enclosing two immiscible fluids, e.g. water and oil, being in contact with each other at an interface. Incoming waves are then refracted at this interface. The shape of the interface, and thereby the refraction property, is adjustable by adjusting a voltage applied to the lens. The two fluids are selected such that they together exhibit a mechanical damping which is critical or near critical. A control circuit generates the electric voltage for adjusting the refraction from one value to another, the control circuit being arranged to change the electric voltage such that a rate of voltage change is limited to avoid oscillation of the interface, thereby adjusting refraction of incoming waves at the interface in a continuous manner. This makes it possible to use the lens while it is during adjustment from one refraction value to another, since the interface shape will at all time during the adjustment have a controlled shape. The voltage can be either a continuous voltage or a discrete stepwise (digital) voltage which is just controlled with respect to step size and temporal extension of the steps. The lens system has a number of applications e.g. within the medical field, e.g. for 'on the fly' high speed ultrasound imaging, or for ultrasound ablation applications where ablation can be performed during adjustment of the lens to follow a pre-defined trajectory.
    • 提供了一种可调节流体型透镜系统, 超声波成像通过透镜在调整镜片期间。 透镜包括容纳两个不混溶流体的容器,例如 水和油在界面处彼此接触。 然后在这个界面折射出来的波。 通过调节施加到透镜上的电压来调节界面的形状以及由此的折射特性。 选择两种流体使得它们一起显示出关键或近临界的机械阻尼。 控制电路产生用于将折射率从一个值调整到另一个值的电压,控制电路被布置成改变电压,使得电压变化率被限制以避免界面的振荡,由此调节入射波的折射 界面以连续的方式。 这使得可以在从一个折射值到另一个折射值的调整期间使用透镜,因为在调节期间的所有时间的界面形状都具有受控的形状。 电压可以是连续电压或离散的逐步(数字)电压,其仅仅相对于步长的步长和时间延长而被控制。 透镜系统具有许多应用,例如, 在医疗领域内。 用于“飞行”高速超声成像,或用于超声消融应用,其中可以在镜片调整期间执行消融以遵循预定轨迹。
    • 2. 发明申请
    • METHODS AND APPARATUSES OF APERTURE CONTROL AND MULTIPLEXING WITH ADJUSTABLE FLUID LENSES
    • 孔径控制和可调节流体镜的多路复用方法与装置
    • WO2008135896A1
    • 2008-11-13
    • PCT/IB2008/051626
    • 2008-04-28
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.FERNANDEZ, Anna, T.HALL, Christopher, S.SUIJVER, Jan, F.
    • FERNANDEZ, Anna, T.HALL, Christopher, S.SUIJVER, Jan, F.
    • G10K11/30
    • G10K11/30
    • An acoustic imaging system (1300) includes: an acoustic transducer (40); a plurality of variably-refracting acoustic lens elements (10) coupled to the acoustic transducer, a controller (1326) adapted to generate a plurality of control signals for electrodes (250, 260) of the variably-refracting acoustic lens elements (10); a multiplexer (1322) adapted to multiplex the control signals for the electrodes of the variably-refracting acoustic lens elements (10) to produce a multiplexed control signal; a decoder (1312) adapted to demultiplex the multiplexed control signal to produce the plurality of control signals for the electrodes (250, 260) of the variably-refracting acoustic lens elements (10); and a cable (1330) adapted to provide the multiplexed control signal from the multiplexer (1322) to the decoder (1312). The variably-refracting acoustic lens elements (10) are adapted, in response to control signals applied thereto, to adjust an effective aperture of the acoustic transducer (40) to have a selected aperture size.
    • 声学成像系统(1300)包括:声换能器(40); 耦合到声换能器的多个可变折射声透镜元件(10),适于产生可变折射声透镜元件(10)的电极(250,260)的多个控制信号的控制器(1326)。 多路复用器(1322),其适用于多路复用用于可变折射声透镜元件(10)的电极的控制信号以产生多路复用的控制信号; 解码器(1312),适于对多路复用控制信号进行解复用以产生用于可变折射声透镜元件(10)的电极(250,260)的多个控制信号; 以及适于将多路复用器(1322)的复用控制信号提供给解码器(1312)的电缆(1330)。 响应于施加到其上的控制信号,可变折射声透镜元件(10)适于调节声换能器(40)的有效孔径以具有所选择的孔径尺寸。
    • 4. 发明申请
    • ULTRASONIC ASSEMBLY WITH ADJUSTABLE FLUID LENS
    • 超声波组件与可调节流体镜
    • WO2009007900A2
    • 2009-01-15
    • PCT/IB2008/052716
    • 2008-07-07
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.HALL, Christopher, S.FERNANDEZ, Anna, T.SUIJVER, Jan, F.
    • HALL, Christopher, S.FERNANDEZ, Anna, T.SUIJVER, Jan, F.
    • A61B17/22
    • A61N7/022A61B2017/00243A61N2007/0056G10K11/30
    • An ultrasonic assembly suited for attachment to a catheter, e.g. for medical treatment. The ultrasonic assembly includes an adjustable ultrasonic focus mechanism arranged in connection with the ultrasonic transducer to adjust focus of ultrasonic waves generated by the transducer. The ultrasonic focus mechanism includes a fluid focus lens with at least two fluids separated by an interface such that ultrasonic waves are substantially reflected at the interface. At least two electrodes are arranged in connection with the fluid focus lens so as to allow adjustment of the interface shape, e.g. a curvature of the interface, when a voltage is applied to the electrodes. In preferred embodiments the electrodes are arranged so as to allow adjustment of the fluid focus lens in an elevation direction as well as in a radial direction. In simple embodiments with rotational symmetric geometry with the transducer positioned in the centre of the fluid focus lens, ultrasonic waves can be focused in an annular ring. This is e.g. suitable for ablative or coagulative necrotic treatment of human tissue, e.g. for atrial fibrillation treatment. In some embodiments, the assembly has a number of separate individually adjustable fluid focus lens compartments allowing a more detailed control of the ultrasonic focus pattern.
    • 适于附接到导管的超声波组件,例如 用于治疗。 超声波组件包括与超声波换能器连接布置的可调超声波聚焦机构,以调节由换能器产生的超声波的焦点。 超声波聚焦机构包括流体聚焦透镜,其中至少两个流体被界面分开,使得超声波在界面处被大体上反射。 至少两个电极被布置成与流体聚焦透镜相关联,以便允许调节界面形状,例如, 当向电极施加电压时,界面的曲率。 在优选实施例中,电极被布置成允许在高度方向以及径向方向上调整流体聚焦透镜。 在具有旋转对称几何形状的简单实施例中,换能器定位在流体聚焦透镜的中心,超声波可以聚焦在环形环中。 这是例如 适用于人体组织的消融或凝血坏死治疗,例如 用于心房颤动治疗。 在一些实施例中,组件具有许多单独可单独调节的流体聚焦透镜隔室,允许对超声波聚焦图案进行更详细的控制。
    • 7. 发明申请
    • APPARATUS FOR CONTROLLED DELIVERY OF MOLECULES USING A CONTROLLED INJECTION SYSTEM
    • 用控制注射系统控制输送分子的装置
    • WO2009001243A1
    • 2008-12-31
    • PCT/IB2008/052373
    • 2008-06-17
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.HALL, Christopher, S.RAJU, Balasundar, I.CHIN, Chien, T.SHI, William, T.
    • HALL, Christopher, S.RAJU, Balasundar, I.CHIN, Chien, T.SHI, William, T.
    • A61M37/00A61K41/00
    • A61M37/0092A61K41/0033A61M5/16827
    • Apparatus for controlled delivery of molecules at a predetermined region of interest within a fluid- filled cavity or vessel by means of ultrasound activatable particles. Said apparatus comprises a system for locating the region of interest (1), a first injection system (4) for injecting said ultrasound activatable particles into said cavity or vessel, wherein said first injection system is adapted to adjust the flow rate of said ultrasound activatable particles and a second injection system (4) for injecting said molecules into said cavity or vessel, wherein said second injection system is adapted to adjust the flow rate of said molecules. The apparatus further comprises a delivery system (1) for delivering said molecules by activating the ultrasound activatable particles at the region of interest, a detection system for determining the delivery of the molecules at the region of interest and a controller (7) for controlling the first and second injection system and the delivery system in response to the detection system.
    • 用于通过超声可激活颗粒在流体填充的空腔或容器内的预定感兴趣区域处控制传递分子的装置。 所述装置包括用于定位所述感兴趣区域(1)的系统,用于将所述超声可激活颗粒注入所述空腔或容器中的第一注射系统(4),其中所述第一注射系统适于调节所述超声可激活的 颗粒和用于将所述分子注入所述空腔或容器中的第二注射系统(4),其中所述第二注射系统适于调节所述分子的流速。 该装置还包括用于通过激活感兴趣区域上的超声可激活颗粒来递送所述分子的递送系统(1),用于确定感兴趣区域中分子递送的检测系统和用于控制 第一和第二注射系统以及响应于检测系统的递送系统。