面向磁共振弹性成像的气动增压激励装置及方法

Pneumatic supercharging excitation device and method oriented to magnetic resonance elasticity imaging

Abstract

本发明公开一种面向磁共振弹性成像的气动增压激励装置及方法,包括振动发生器和桥接机构,振动发生器包括“T”型推杆,“T”型推杆圆面边缘通过振动端支撑薄膜与振动端密闭气仓密封连接,振动端密闭气仓内设有振动端密封薄膜,“T”型推杆圆面下侧设有相对的平衡弹簧;桥接机构包括微型气缸、气压表和桥接头;桥接头内设有桥接端密封薄膜,桥接头下边缘通过桥接端支撑薄膜与“工”型推杆上圆面边缘连接,“工”型推杆两侧设有拉簧。本发明通过提高导管内部气体压强,使机械波在导管内的传播速度更快、能量损失更少。增强了对人体内部组织中的激励,使弹性成像质量更高。
The invention discloses a pneumatic supercharging excitation device and method oriented to magnetic resonance elasticity imaging. The pneumatic supercharging excitation device comprises a vibration generator and a bridging mechanism, wherein the vibration generator comprises a T-type push rod, the edge of a round face of the T-type push rod is connected with a vibrating end airtight air bin through a vibrating end supporting film in a sealed mode, a vibrating end sealing film is arranged in the vibrating end airtight air bin, and opposite balance springs are arranged below the round face of the T-type push rod; the bridging mechanism comprises a miniature air cylinder, an air pressure gauge and a bridging head, a bridging end sealing film is arranged in the bridging head, the lower edge of the bridging head is connected with the edge of an upper round face of an I-type push rod through a bridging end supporting film, and tension springs are arranged at the two sides of the I-type push rod. As the pressure intensity of air in a guide pipe is increased, propagation speed of mechanical waves in the guide pipe is higher, and energy loss of the mechanical waves is smaller. Excitation on tissue in the human body is enhanced, and therefore elasticity imaging quality is higher.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (8)

    Publication numberPublication dateAssigneeTitle
    CN-101969845-AFebruary 09, 2011长春源国际有限公司带有液压驱动器的磁共振弹性成像系统
    CN-103349551-AOctober 16, 2013深圳先进技术研究院一种磁共振弹性成像方法及系统
    CN-104000591-AAugust 27, 2014合肥工业大学Magnetic resonance elastography active adsorption type bridging exciter
    CN-202386685-UAugust 22, 2012中国科学院深圳先进技术研究院Magnetic-resonance excitation system
    CN-202489951-UOctober 17, 2012中国科学院深圳先进技术研究院Elastography excitation device and system
    JP-2010016082-AJanuary 21, 2010Hitachi Ltd, 株式会社日立製作所Vacuum insulating container and vacuum insulating device
    KR-100894307-B1April 24, 2009연세대학교 산학협력단자기 공명 탄성 기법을 위한 구동 장치
    KR-101451023-B1October 14, 2014고려대학교 산학협력단탄성자기공명영상기법용 진동기

NO-Patent Citations (0)

    Title

Cited By (0)

    Publication numberPublication dateAssigneeTitle