Tissue Preservation Evaluation Using Luminescent Gene Markers

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Solution Overview

Problem

Current methods for evaluating the preservative effect of tissue preservation solutions are time-consuming, hindering the rapid development of new solutions.

Innovation Solution

Evaluating the preservative effect by immersing mammalian tissues with luminescence or fluorescence labeling genes, such as luciferase, in the preservation solution and measuring the resulting luminescence or fluorescence levels to assess the solution's effectiveness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional tissue preservation evaluation methods are used (immersing isolated tissue and transplanting to animals or biochemical evaluation), then accurate preservative effect assessment is achieved, but evaluation time becomes extremely long

Engineering Contradiction:
Improvepreservative effect assessment accuracyVSAvoidevaluation time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent introduces luminescence or fluorescence labeling genes as an intermediary indicator system. Instead of directly measuring tissue viability through complex transplantation or biochemical assays, the patent uses luminescence/fluorescence signal intensity as a mediator that correlates with tissue preservation quality, enabling rapid non-invasive assessment while maintaining evaluation accuracy

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces mechanical/surgical evaluation methods (tissue transplantation to animals) with optical detection methods (luminescence/fluorescence imaging). This substitution eliminates the need for animal transplantation procedures while providing real-time, quantitative assessment of preservative effects through non-invasive optical measurements

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

2Reliability

If conventional tissue preservation evaluation methods are used, then reliable preservative effect data is obtained, but development speed of new preservation solutions becomes slow

Engineering Contradiction:
Improvepreservative effect data reliabilityVSAvoiddevelopment speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent introduces luminescence or fluorescence labeling genes into tissues before preservation evaluation. This preliminary genetic modification enables real-time monitoring of tissue preservation status during the evaluation process, allowing researchers to quickly screen and compare multiple preservation solutions without waiting for long-term transplantation outcomes, thereby accelerating development while maintaining data reliability

Inventive Principle:
Principle #10Preliminary action

3Loss of time

If luminescence or fluorescence labeling genes are introduced into tissue, then real-time preservative effect evaluation is enabled, but measurement complexity increases

Engineering Contradiction:
Improveevaluation timeVSAvoidmeasurement complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent utilizes the tissue's own luminescence or fluorescence signal (generated by the introduced labeling genes) as the evaluation indicator. The tissue itself serves as the light source, eliminating the need for external labeling procedures or complex preparation steps. This self-service approach simplifies the measurement process while enabling real-time, non-invasive assessment of preservative effects

Inventive Principle:
Principle #25Self-service

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 method allows for rapid and convenient evaluation of preservative effects, enabling faster development of tissue preservation solutions and simultaneous assessment across various tissues.

Implementation Method 1

measuring a luminescence or fluorescence level by the labeling gene in the tissue after immersion

Methodology Applied
Scientific EffectLuminescence: Luminescence

Implementation Method 2

measuring a luminescence or fluorescence level by the labeling gene in the tissue after immersion

Methodology Applied
Scientific EffectFluorescence: Fluorescence

Data Source

PatentUS8871440B2Method for evaluation of tissue preservation solution
Publication Date: 2014.10.28 OTSUKA PHARMACEUTICAL FACTORY INC
  • US8871440B2 patent drawing
  • US8871440B2 patent drawing
  • US8871440B2 patent drawing

AI summary

The present invention provides a method for evaluating preservative effect of a tissue preservation solution, comprising immersing a mammalian tissue introduced with a luminescence or fluorescence labeling gene in the tissue preservation solution, measuring a luminescence or fluorescence level by the labeling gene in the tissue after immersion, and evaluating the preservative effect of the tissue preservation solution based on the luminescence or fluorescence level.