Magnetic Field-Controlled Bio-Scaffold for Targeted Tissue Regeneration

Solution Overview

Problem

Conventional bio-scaffolds face challenges in being inserted and localized at target sites within the body, particularly at difficult-to-reach locations like vessels and cerebral tissues, often requiring surgery and mechanical instruments, which can lead to infection and injury, and are limited in their application due to these complexities.

Innovation Solution

A magnetic field-controlled movable bio-scaffold with a porous structure coated with a magnetic layer, allowing it to be translocated to a target site under the control of an external magnetic field, thereby avoiding direct insertion and enabling placement at sites previously difficult to access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional bio-scaffolds are inserted directly into the body using surgery and mechanical instruments, then they can be localized at target sites, but this approach increases the risk of infection and injury

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces mechanical insertion methods (surgery and mechanical instruments) with a magnetic field-based translocation system. The bio-scaffold incorporates magnetic particles that respond to external magnetic fields, enabling non-contact guidance to target sites and eliminating the need for invasive mechanical insertion procedures

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

Solution Approach 2:

The patent introduces magnetic particles as an intermediary between the bio-scaffold and external magnetic fields. These particles enable remote control and translocation of the bio-scaffold through the body without direct mechanical contact, serving as a mediator that translates magnetic field forces into scaffold movement

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If conventional bio-scaffolds are inserted using surgery and mechanical instruments, then they can reach target sites, but the procedure becomes complex and time-consuming

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical surgical procedures with a simplified magnetic field-guided translocation system. Instead of requiring sophisticated surgical instruments and manual manipulation, the system uses external magnetic fields to guide the scaffold to its destination

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

Solution Approach 2:

The bio-scaffold with magnetic particles can autonomously respond to external magnetic field signals and self-translocate to the target site without requiring complex surgical manipulation. The scaffold essentially guides itself to the destination through magnetic actuation

Inventive Principle:
Principle #25Self-service

3Reliability

If conventional bio-scaffolds are inserted using surgery and mechanical instruments, then they can be positioned at target sites, but sites difficult to approach remain inaccessible

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent replaces mechanical insertion limitations with magnetic field-based translocation capability. Magnetic fields can penetrate deep into the body and guide scaffolds to previously inaccessible locations such as deep cerebral tissues and internal vessels without being constrained by anatomical barriers that limit mechanical instrument access

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 magnetic field-controlled bio-scaffold can be positioned at target sites without the need for surgical insertion, reducing the risk of infection and injury, and can effectively move within the body to reach areas such as vessels and cerebral tissues, facilitating tissue regeneration and drug delivery.

Implementation Method 1

a magnetic field-controlled movable bio-scaffold which can move to a target site under the control of an external magnetic field

Methodology Applied
Scientific EffectMagnetic field control: Magnetic Field

Data Source

PatentUS9402903B2Magnetic field-controlled movable bio-scaffold and constructing method thereof
Publication Date: 2016.08.02
  • US9402903B2 patent drawing
  • US9402903B2 patent drawing
  • US9402903B2 patent drawing

AI summary

Disclosed are a magnetic field-controlled movable bio-scaffold and a method for constructing the same. The bio-scaffold is highly biocompatible and can readily move to a target site under the control of an external magnetic field.