Deep Magnetic Field Generating Apparatus Using Dual Coil Segmentation

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Solution Overview

Problem

Current tumor thermotherapy methods, such as microwave thermotherapy and RFA, are expensive and painful due to the need for direct insertion of electrodes, while existing electromagnetic thermotherapy lacks the ability to generate a deep magnetic field effectively for improved treatment quality.

Innovation Solution

A deep magnetic field generating apparatus comprising a first coil unit for concentrated magnetic field generation and a second coil unit for large-area magnetic field generation, with a magnetic-field limitation and reinforcement element, to create a combined deep magnetic field for enhanced electromagnetic induction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a single coil is used to generate magnetic field, then the device structure is simple, but the magnetic field penetration depth is insufficient

Engineering Contradiction:
Improvemagnetic field penetration depthVSAvoidcoil structure complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The magnetic field generating device is divided into two separate coil units: a first coil unit for generating concentrated magnetic field and a second coil unit for generating large-area magnetic field. This segmentation allows each coil to be optimized for its specific function while achieving deep magnetic field penetration when both coils work together.

Inventive Principle:
Principle #1Segmentation

2Reliability

If electromagnetic needle is inserted directly into tumor, then treatment effectiveness is improved, but patient pain and treatment cost increase

Engineering Contradiction:
Improvetreatment effectivenessVSAvoidpatient pain
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention replaces the mechanical needle insertion method with an electromagnetic induction method. Instead of physically inserting electrodes into the tumor, the system uses external magnetic field coils to induce eddy currents in an electromagnetic needle placed on the skin surface, thereby eliminating patient pain while maintaining treatment effectiveness.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of manufacture

If electromagnetic needle is used without deep magnetic field, then treatment cost is reduced, but treatment quality is insufficient

Engineering Contradiction:
Improvetreatment costVSAvoidtreatment quality
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The invention combines the advantages of low-cost electromagnetic needle therapy with deep magnetic field penetration by merging two coil units with different field characteristics. The first coil provides concentrated magnetic field for deep penetration while the second coil provides large-area coverage, together achieving both cost-effectiveness and high treatment quality.

Inventive Principle:
Principle #5Merging (Combining)

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 apparatus provides a deep magnetic field that can reach deeper tumor tissues, improving treatment efficacy while reducing treatment costs and pain by using simple components.

Implementation Method 1

the inner first coil unit generates a concentrated magnetic field

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

the outer second coil unit generates a large-area magnetic field

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 3

the alternating magnetic field induces the eddy current in the needle to generate heat for burning the tumor tissues

Methodology Applied
Scientific EffectEddy current: Eddy Currents

Data Source

PatentUS9320912B2Deep magnetic field generating apparatus
Publication Date: 2016.04.26 METAL INDS RES & DEV CENT
  • US9320912B2 patent drawing
  • US9320912B2 patent drawing
  • US9320912B2 patent drawing

AI summary

A deep magnetic field generating apparatus includes a first coil unit and a second coil unit. The second coil unit is connected with the first coil unit, and disposed around the first coil unit horizontally. Accordingly, the deep magnetic field generating apparatus can generate a desired deep magnetic field.