Transglutaminase Coating for Anti-Adhesion Tissue Matrices
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Solution Overview
Problem
Existing tissue products face issues with mechanical wear, damage, and adhesion formation due to bending, stretching, and shear stress, leading to degradation and damage to both the implanted products and surrounding tissues.
Innovation Solution
Applying a transglutaminase coating to collagen-containing tissue matrices to enhance anti-adhesion and anti-abrasion properties, improving resistance to wear and reducing friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If tissue matrices are used for load bearing applications, then they can provide structural support and tissue regeneration, but they are subject to mechanical forces that lead to wear and damage
Solution Approach 1:
The patent applies a crosslinked coating layer on the tissue matrix surface that creates a composite structure. The coating layer comprises crosslinked proteins or peptides that form a protective barrier, combining the structural support function of the tissue matrix with the wear resistance properties of the crosslinked coating, thereby resolving the contradiction between providing structural support and resisting mechanical wear.
Solution Approach 2:
The patent changes the surface properties of the tissue matrix by applying a crosslinked coating that modifies surface hardness, friction coefficients, and adhesion properties. This parameter change at the surface level protects the bulk tissue matrix from mechanical degradation while maintaining its load-bearing capacity and biocompatibility.
2Adaptability or versatility
If tissue matrices are subjected to bending, stretching, and shear stress, then they can function in dynamic physiological environments, but these forces lead to damage or degradation to the tissue products
Solution Approach 1:
The patent applies a pre-crosslinked protective coating to the tissue matrix before implantation. This preliminary action creates a protective barrier that prevents mechanical forces from directly acting on the tissue matrix structure, thereby maintaining compositional stability while allowing the device to function in dynamic physiological environments.
Solution Approach 2:
The crosslinked coating changes the surface mechanical properties including hardness, elasticity, and friction characteristics. These parameter changes enable the tissue matrix to withstand bending, stretching, and shear stresses without degradation, maintaining both adaptability to dynamic environments and compositional stability.
3Reliability
If tissue products are implanted, then they can regenerate or repair damaged tissues, but friction and adhesion with surrounding tissues cause wear and damage
Solution Approach 1:
The patent introduces a crosslinked coating layer as an intermediary between the tissue matrix and surrounding tissues. This coating layer acts as a mediator that reduces direct friction and adhesion interactions, allowing the tissue matrix to perform its regenerative function without suffering wear and damage from mechanical contact with surrounding tissues.
Solution Approach 2:
The crosslinked coating modifies surface parameters including friction coefficients and adhesion properties. By changing these surface parameters, the coating reduces harmful friction and adhesion forces while maintaining the tissue matrix's ability to regenerate and repair damaged tissues.
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 transglutaminase coating provides enhanced resistance to surface damage and adhesion formation, reducing friction and wear, thereby protecting the tissue products and surrounding tissues.
Implementation Method 1
applying a composition comprising a transglutaminase enzyme to the collagen-containing tissue matrix; and allowing the transglutaminase to perform an enzymatic activity on the collagen-containing tissue matrix
Data Source
AI summary
The present application relates to use of transglutaminases to treat various products, including medical devices such as tissue grafts, tissue matrices or other tissue-derived materials, and synthetics. The transglutaminases can be applied to the medical devices to provide advantages such as adhesion resistance or abrasion resistance.