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Off-center gradient coil and gradient coil design method based on stream function

A gradient coil and flow function technology, applied in the field of medical devices, can solve the problems of increasing the cost of magnets, increasing the total cost of magnetic resonance system products, etc., and achieve the effect of large surgical space

Pending Publication Date: 2022-03-29
安徽福晴医疗科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

Therefore, modifying the magnet in order to increase the opening degree will greatly increase the cost of the magnet, which will greatly increase the total cost of the magnetic resonance system product

Method used

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  • Off-center gradient coil and gradient coil design method based on stream function
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  • Off-center gradient coil and gradient coil design method based on stream function

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0027] An off-center gradient coil provided by an embodiment of the present application is used for magnetic resonance-guided interventional therapy. The center of the gradient coil is set at a position away from the center of the main magnetic field, so that the range of the gradient magnetic field used for imaging is located at the uniform center of the main magnetic field. within the area.

[0028] In the embodiment of this application, in order to meet the doctor's needs for mag...

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Abstract

The invention provides an off-center gradient coil and a gradient coil design method based on a stream function, which are used for magnetic resonance guided interventional therapy, and the center of the gradient coil is set at a position deviating from the center of a main magnetic field, so that a gradient magnetic field range for imaging is located in a uniform region of the main magnetic field. Under the condition that the openness of the main magnet is not changed, a strong gradient magnetic field signal is generated and superposed on the main magnetic field, space coding in the X direction, the Y direction and the Z direction is carried out on human tissue in the magnetic resonance guided interventional imaging process, a larger operation space is reserved, implementation of an interventional operation is facilitated, and the product has higher market competitiveness.

Description

technical field [0001] The present application relates to the technical field of medical devices, in particular, to an off-center gradient coil for magnetic resonance-guided interventional therapy and a gradient coil design method based on a flow function. Background technique [0002] Gradient coils are the core accessories of magnetic resonance imaging systems. Conventional magnetic resonance systems (usually the main magnetic field is a permanent magnet in the vertical direction or a cylindrical superconducting magnet in the horizontal direction) are generally only used for whole-body examinations. In recent years, image-guided minimally invasive interventions With the continuous development of treatment technology and industry, magnetic resonance, as the best imaging technology for soft tissue, has a series of characteristics such as no ionizing radiation, high resolution of soft tissue imaging, high contrast, real-time imaging, etc., making interventional magnetic resona...

Claims

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Application Information

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IPC IPC(8): G01R33/385
CPCG01R33/385
Inventor 周玉福刘峥嵘张晴杜汇雨王长亮罗鹏辉袁克诚周建太张华彬蒋天昊郭磊徐嘉男祁甫浪龙朝阳邱本胜
Owner 安徽福晴医疗科技有限公司
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