MRI Receiving Coil Segmented Asymmetric Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current MRI receiving coils face challenges in efficiently acquiring magnetic resonance signals with high intensity and minimal distortion, particularly due to the distance between the coil and the object, leading to signal loss and distortion.
Innovation Solution
The design incorporates a ring-type or cylindrical structure with helical coil elements connected by capacitors, forming a right circular virtual cylinder around a central axis, allowing for a constant angle between the coil elements and the axis, and ensuring electrical insulation between multiple coil elements, which are positioned at specific intervals to enhance signal acquisition and reduce overlapping forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the coil is positioned closer to the object to improve signal intensity, then signal reception quality improves, but the coil structure becomes more complex and difficult to position
Solution Approach 1:
The coil structure is divided into multiple independent coil elements arranged in a segmented pattern around the central axis. Each coil element can be independently positioned and configured, allowing the overall structure to achieve high signal reception quality without requiring a monolithic complex design. The segmented arrangement enables flexible positioning close to the object while maintaining structural simplicity through modular repetition.
2Measurement precision
If multiple coil elements are used to improve signal acquisition, then signal intensity improves, but electrical interference and overlapping forces increase
Solution Approach 1:
The coil elements are arranged in an asymmetric pattern around the central axis rather than in a symmetric configuration. This asymmetric arrangement ensures that the magnetic field lines generated by each coil element do not overlap or intersect with others, eliminating electrical interference and overlapping forces while maintaining high signal acquisition capability across multiple elements.
3Measurement precision
If coil elements are positioned at specific intervals to reduce distortion, then signal clarity improves, but the overall coil size increases
Solution Approach 1:
The coil elements are arranged in a three-dimensional configuration around the central axis rather than in a simple linear or planar arrangement. By utilizing the radial dimension around the axis, the coil achieves signal clarity through proper spacing without increasing the overall length of the coil assembly. The elements are positioned at specific angular and axial intervals that optimize signal clarity while maintaining a compact footprint.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration improves the intensity and clarity of magnetic resonance signals received, reducing distortion and allowing for more accurate imaging by spatially localizing B-field sensitivity and increasing the bandwidth of RF frequencies applied.
Implementation Method 1
elements that apply a high frequency signal to a biological tissue to prompt a resonance effect from the biological tissue
Implementation Method 2
a first capacitor forming the connection between the at least one coil element and the first support member; and a second capacitor forming the connection between the at least one coil element and the second support member
Data Source
AI summary
A receiving coil for a magnetic resonance imaging (MRI) apparatus has a cylindrical form including ring-type support members or a cylinder-type support member having open ends, and at least one coil element connected to the support member(s). The receiving coil is configured to receive magnetic resonance signals.