Conformable MRI Receiver Coil Framework for Open Surgical Access

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Solution Overview

Problem

Conventional MRI head coils are rigid and bulky, causing patient discomfort, limiting access to surgical sites, and degrading image quality due to poor signal-to-noise ratio, especially during neurosurgical procedures where simultaneous use of diagnostic and therapeutic devices is necessary.

Innovation Solution

A conformable MRI receiver coil system with a pliable framework that positions MRI antennae and diagnostic/therapeutic devices flush against the patient's skull, allowing for adjustable and open access, enhancing image quality and compatibility with ultrasound transducers and other devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional rigid head coils are used, then structural stability is provided, but patient access to surgical sites is limited and claustrophobia increases

Engineering Contradiction:

Improveaccess to surgical sitesVSAvoidrigid enclosed structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The head coil is divided into multiple modular segments that can be independently positioned and adjusted. Each segment contains its own receiver coils and can be configured to provide open access pathways while maintaining signal reception coverage, eliminating the need for a fully enclosed rigid structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The head coil transitions from a static rigid structure to a dynamic adjustable framework. The segments can be moved, rotated, and reconfigured during patient positioning and surgical procedures to optimize both access and imaging quality, adapting to different surgical needs.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If flat surface coils are used to improve access, then open framework is achieved, but signal-to-noise ratio deteriorates due to increased distance from skull

Engineering Contradiction:

Improveaccess to surgical sitesVSAvoidsignal-to-noise ratio

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The receiver coils are mounted on flexible, thin-walled segments that can conform to the curved surface of the patient's head. This maintains minimal distance between the coils and the skull surface, preserving signal-to-noise ratio while allowing the open framework design for surgical access.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The head coil segments are designed with curved surfaces that match the anatomy of the human head. This curvature ensures optimal positioning of the receiver coils close to the skull surface, maximizing signal reception while maintaining the open framework configuration.

Inventive Principle:

Principle #14Spheroidality (Curvature)

3Adaptability or versatility

If multiple devices are positioned flush against skull, then comprehensive monitoring is achieved, but device interference and positioning difficulty increase

Engineering Contradiction:

Improvesimultaneous device supportVSAvoiddevice integration complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The head coil segments are designed as multi-functional platforms that can simultaneously accommodate various devices including receiver coils, ultrasound transducers, and other surgical instruments. Each segment provides standardized mounting interfaces and positioning mechanisms for multiple device types.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Multiple devices are integrated within and between the coil segments in a nested arrangement. The framework structure provides hierarchical organization where smaller devices can be positioned within the spaces created by larger segments, minimizing interference and optimizing space utilization.

Inventive Principle:

Principle #7Nested doll (Nesting)

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

The system provides high-resolution imaging with improved patient comfort and access to surgical sites, reducing claustrophobia and maintaining a strong signal-to-noise ratio, enabling simultaneous use of multiple devices during procedures.

Implementation Method 1

One such advancement was the magnetic resonance imaging, or MRI device. MRIs permitted physicians to use magnetic fields and radio waves to capture high quality images of internal tissue

Methodology Applied

Scientific EffectMagnetic resonance imaging: Magnetic Field

Implementation Method 2

The ability to use MR-guided neurotherapy significantly increases visibility to the treatment area and improves the outcome of the surgery

Methodology Applied

Scientific EffectSignal-to-noise ratio enhancement:

Data Source

PatentEP4065995B1Conformable MRI receiver coil system capable of supporting ultrasound, diagnostic, therapeutic, and interventional implements

Publication Date: 2025.08.27 MR INSTRUMENTS INC

Figure 1A~1B
Figure 2A~2B
Figure 2C~2D

AI summary

A wearable, open and pliable conforming MRI receiver coil system having an assembly of MRI imaging coils, each configured in a framework to simultaneously apply or position MRI receiver antennae and medical implements such as ultrasound transducers against the skull or skin of a patient. The system is configured to perform an MRI imaging and operation of the one or more medical implements simultaneously.