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    • 6. 发明申请
    • MAGNETIC RESONANCE ELASTOGRAPH SYSTEM WITH HYDRAULIC DRIVER
    • 具有液压驱动器的磁共振ELASTOGRAPH系统
    • WO2009100684A1
    • 2009-08-20
    • PCT/CN2009/070417
    • 2009-02-13
    • LI, Geng
    • LI, Geng
    • A61B5/055G01R33/20F15B21/12
    • F15B7/00A61B5/0051A61B5/055A61B5/415G01R33/56358
    • A hydraulic driver (100) of a magnetic resonance elastography (MRE) system (112) is adapted to be connected to at least a passive actuator (110) for contacting with a subject The hydraulic driver (100) includes a pump (2), a hydraulic piston-cylinder unit (3) operatively coupled to the pump (2), and a tube assembly The tube assembly includes a proximal end in fluid communication with the hydraulic piston-cylinder unit (3) and a distal end in fluid communication with the passive actuator (110) The passive actuator (110) oscillates in responsive to hydraulic energy generated in a fluid in the hydraulic driver (100) as the pump (2) drives the piston (31) forward and backward in the cylinder of the hydraulic piston-cylinder unit (3).
    • 磁共振弹性成像(MRE)系统(112)的液压驱动器(100)适于连接至至少一个与受试者接触的被动致动器(110)。液压驱动器(100)包括泵(2), 可操作地联接到泵(2)的液压活塞 - 气缸单元(3)和管组件。管组件包括与液压活塞 - 气缸单元(3)流体连通的近端和与液压活塞 - 气缸单元(3)流体连通的远端 被动致动器(110)当泵(2)在液压缸(100)的气缸中向前和向后驱动活塞(31)时,被动致动器(110)响应于在液压驱动器(100)中的流体中产生的液压能量而摆动 活塞缸单元(3)。
    • 7. 发明申请
    • NOVEL NEEDLE DRIVER FOR MAGNETIC RESONANCE ELASTOGRAPHY
    • 用于磁共振成像的新型驱动器
    • WO2008067053A2
    • 2008-06-05
    • PCT/US2007/081256
    • 2007-10-12
    • LAWRENCE GROUP MEDICAL DEVICE TRUSTLI, Geng
    • LI, Geng
    • A61B5/05
    • A61B5/055A61B5/0051A61B5/4064A61B5/4088A61B10/0233A61B2018/0019
    • The present invention is directed toward an acoustic, piezoelectric, electric, electro-mechanical or pneumatically driven surface drum driver, in mechanical engagement with a biopsy or acupuncture needle device and a method for its use for diagnosis of small e.g. 100 microns, tumors via the production of magnetic resonance elastographic images (MRE), without artifact production, in a magnetic resonance imaging (MRI) machine. In a second embodiment, the invention is directed toward an acoustically, pneumatically, piezoelectrically, electrically and/or electro-mechanically driven acupuncture needle, useful for simulating manual single-needle acupuncture treatments via a non-manually manipulated acupuncture needle; and further to a device and process for determination, using twin pneumatically driven surface drivers, of organ stiffness, e.g. brain stiffness, which can be quantified so as to be useful in elucidating and quantifying brain cognitive state, e.g. normal, mild cognitive impairment (MCI) or Alzheimer's dementia (AD).
    • 本发明涉及与活组织检查或针灸针装置机械接合的声学,压电,电,机电或气动驱动的表面鼓驱动器及其用于诊断 小例如 100微米,通过在磁共振成像(MRI)机器中产生磁共振弹性成像图像(MRE)而没有伪影产生的肿瘤。 在第二实施例中,本发明涉及声学,气动,压电,电和/或机电驱动的针灸针,其可用于通过非手动操作的针灸针来模拟手动单针针灸治疗; 并进一步涉及使用双气动驱动的表面驱动器确定器官硬度的装置和过程,例如, 脑硬度,其可以被量化以用于阐明和量化脑认知状态,例如, 正常,轻度认知障碍(MCI)或阿尔茨海默氏痴呆(AD)。