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    • 1. 发明申请
    • INTRAVASCULAR ULTRASOUND IMAGING SYSTEM
    • 血管内超声成像系统
    • WO2010117634A3
    • 2011-08-04
    • PCT/US2010028454
    • 2010-03-24
    • BOSTON SCIENT SCIMED INCHASTINGS ROGER NPIKUS MICHAEL JEDMUNDS KEVIN DTEO TAT-JIN
    • HASTINGS ROGER NPIKUS MICHAEL JEDMUNDS KEVIN DTEO TAT-JIN
    • A61B8/12A61B8/00
    • A61B8/4461A61B5/02007A61B8/12A61B8/4281A61B8/445
    • An imaging assembly for an intravascular ultrasound system includes a catheter, an imaging core, and at least one transducer conductor. The imaging core is insertable into the catheter and extendable from a distal end of the catheter. The imaging core includes a rotatable magnet, a tilted reflective surface, and at least one fixed transducer all disposed in a body. The rotatable magnet is configured and arranged to rotate by a magnetic field generated external to the catheter. The tilted reflective surface rotates with the magnet. The at least one transducer is configured and arranged for transforming applied electrical signals to acoustic signals and also for transforming received echo signals to electrical signals. The at least one transducer conductor is electrically coupled to the at least one transducer and is configured and arranged to extend into the catheter when the imaging core is extended from the catheter.
    • 用于血管内超声系统的成像组件包括导管,成像芯和至少一个换能器导体。 成像芯可插入导管中并且可从导管的远端延伸。 成像芯包括可旋转的磁体,倾斜的反射表面以及全部设置在主体中的至少一个固定换能器。 可旋转磁体被构造和布置成通过导管外部产生的磁场旋转。 倾斜的反射表面与磁体一起旋转。 所述至少一个换能器被配置和布置成用于将所施加的电信号变换成声信号,并且还用于将接收到的回波信号变换为电信号。 所述至少一个换能器导体电耦合到所述至少一个换能器并且被配置和布置成当所述成像芯从所述导管延伸时延伸到所述导管中。
    • 3. 发明申请
    • SYSTEMS AND METHODS FOR MAKING AND USING A STEPPER MOTOR FOR AN INTRAVASCULAR ULTRASOUND IMAGING SYSTEM
    • 用于制造和使用用于血管内超声成像系统的步进电动机的系统和方法
    • WO2011037842A3
    • 2011-05-12
    • PCT/US2010049384
    • 2010-09-17
    • BOSTON SCIENT SCIMED INCHASTINGS ROGER NEDMUNDS KEVIN DTEO TAT-JIN
    • HASTINGS ROGER NEDMUNDS KEVIN DTEO TAT-JIN
    • A61B8/12
    • A61B8/4461A61B8/12A61B8/445
    • A catheter assembly for an intravascular ultrasound system includes an imaging core disposed in a lumen of a catheter. The imaging core includes a stepper motor that rotates a mirror coupled to a driveshaft. The stepper motor provides step-wise rotation of the driveshaft using a rotatabSe magnet and at least two magnetic field windings disposed around at least a portion of the magnet. At least one fixed transducer is positioned between the stepper motor and the mirror. The stepper motor permits stepwise rotation of the driveshaft with steps of 3 degrees or less. At least one transducer conductor is electrically coupled to the at least one transducer and in electrical communication with a proximal end of the catheter. At least one motor conductor is electrically coupled to the magnetic field windings and in electrical communication with the proximal end of the catheter.
    • 用于血管内超声系统的导管组件包括设置在导管内腔中的成像核心。 成像核心包括步进电机,该步进电机旋转耦合到驱动轴的反射镜。 步进电机使用可旋转磁体提供驱动轴的逐步旋转以及围绕磁体的至少一部分设置的至少两个磁场绕组。 至少有一个固定传感器位于步进电机和反射镜之间。 步进电机允许以3度或更小的步长逐步旋转驱动轴。 至少一个换能器导体电耦合到至少一个换能器并且与导管的近端电连通。 至少一个电动机导体电耦合到磁场绕组并且与导管的近端电连通。