Variable Resistor Magnetic Field Control for Artificial Bone Degradation

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Solution Overview

Problem

Current methods for degrading artificial bones lack control over the degradation rate, leading to mismatched healing rates with the human body, potentially causing inefficiencies or injuries during bone repair.

Innovation Solution

An apparatus comprising a variable resistor, metal wire, and insulating textile layer generates an alternating magnetic field to control the degradation rate of artificial bones by adjusting the resistance value, ensuring the degradation rate matches the body's recovery rate.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an artificial bone is implanted to repair bone defects, then the bone repair function is improved, but the degradation rate cannot be controlled and may not match the body's recovery rate

Engineering Contradiction:

Improvebone repair functionVSAvoiddegradation rate control

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies parameter changes by using a variable resistor to adjust the resistance value in the circuit, which changes the strength of the alternating magnetic field. This allows control over the degradation rate of the artificial bone by modifying the electrical parameter (resistance) to achieve the desired degradation speed that matches bone recovery rate.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent implements dynamics by making the degradation process controllable and adjustable rather than fixed. The variable resistor enables dynamic adjustment of the magnetic field strength, allowing the degradation rate to be adapted to match the dynamic recovery process of natural bone, ensuring the artificial bone degrades at the optimal rate throughout the healing process.

Inventive Principle:

Principle #15Dynamics

2Duration of action of stationary object

If the degradation rate of artificial bone is too fast, then the artificial bone eliminates quickly, but the bone repair function is compromised before natural bone fully recovers

Engineering Contradiction:

Improveartificial bone persistenceVSAvoidbone repair effectiveness

Core Design Contradiction:

Duration of action of stationary objectVSReliability

Solution Approach 1:

The patent applies feedback by using a controller that monitors and adjusts the resistance value of the variable resistor based on the degradation progress. This feedback mechanism ensures the artificial bone persists for the required duration to support bone repair while automatically adjusting the degradation rate to maintain the necessary repair effectiveness throughout the healing process.

Inventive Principle:

Principle #23Feedback

3Reliability

If the degradation rate of artificial bone is too slow, then the bone repair function is maintained, but the artificial bone remains in the body longer than necessary causing potential complications

Engineering Contradiction:

Improvebone repair functionVSAvoidtime for artificial bone elimination

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent applies parameter changes by adjusting the resistance value to control the magnetic field strength, thereby accelerating the degradation process when needed. This allows the artificial bone to maintain its repair function for the necessary duration while then eliminating more quickly once the natural bone has recovered, reducing the overall time the foreign material remains in the body.

Inventive Principle:

Principle #35Parameter changes

4Adaptability or versatility

If a variable resistor and control circuit are added to control degradation rate, then degradation control is achieved, but the device complexity increases

Engineering Contradiction:

Improvedegradation rate controlVSAvoidapparatus structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies mechanics substitution by replacing potential complex mechanical adjustment mechanisms with an electrical control system. The variable resistor and alternating magnetic field provide a simpler, more precise method for controlling degradation rate compared to mechanical means, reducing overall device complexity while maintaining adaptability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 effectively controls the degradation rate of artificial bones, ensuring synchronized healing with the human body, thereby enhancing the repair process and reducing patient discomfort.

Implementation Method 1

a metal wire electrically connected in series with the variable resistor and configured to generate an alternating magnetic field

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS11278429B2Apparatus for invitro control of degradation rate of artificial bone, degradation method, and artificial bone

Publication Date: 2022.03.22 FUZHOU BOE OPTOELECTRONICS TECH CO LTD

AI summary

An apparatus for controlling a degradation rate of an artificial bone in vitro, a degradation method, and an artificial bone are disclosed. The apparatus includes: a variable resistor; and a wearable component, comprising: a metal wire electrically connected in series with the variable resistor and configured to generate an alternating magnetic field; and an insulating textile layer by which the outside of the metal wire is covered.