Conductive Biomaterial for Cardiac Conduction Restoration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current treatments for heart conditions such as myocardial infarction and arrhythmias are limited in improving cardiac conduction and function, as they fail to effectively address the impaired electrical properties and scar formation that can lead to unidirectional block or reentrant arrhythmias.
Innovation Solution
A biocompatible, electrically conductive biomaterial comprising a polypyrrole-based polymer and chitosan, chemically conjugated to form a conductive hydrogel, which can be introduced to the heart to restore or improve electrical impulse propagation across damaged tissue and resolve 'passive' barriers to atrioventricular electrical conduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional treatments (medication, interventional therapy, surgery) are used to unclog occlusive blood vessels, then blood flow and myocardial ischemia symptoms are improved, but cardiac conduction is not enhanced and cardiac function improvement is limited
Solution Approach 1:
The invention uses a composite material consisting of conductive polymer nanoparticles embedded in a hydrogel matrix. The conductive polymer provides electrical conductivity to enhance cardiac conduction, while the hydrogel provides biocompatibility and structural support. This composite approach allows simultaneous improvement of both blood flow (through the hydrogel's physical properties) and cardiac conduction (through the conductive polymer's electrical properties), resolving the contradiction between these two functions.
Solution Approach 2:
The conductive polymer nanoparticles are locally concentrated at the site of myocardial infarction and scar formation, where electrical conduction is most impaired. This localized application ensures that the electrical conductivity enhancement is targeted precisely where needed, without requiring systemic treatment, thereby improving cardiac conduction reliability in the critical regions while maintaining overall heart function.
2Quantity of substance
If scar formation occurs following myocardial infarction, then blood vessels are recanalized and ischemia symptoms improve, but electrical impulse propagation is impaired and arrhythmias may develop
Solution Approach 1:
The conductive polymer nanoparticles act as an intermediary substance within the scar tissue, facilitating electrical impulse propagation through the otherwise non-conductive fibrotic tissue. These nanoparticles create conductive pathways that bridge the electrical discontinuities caused by scar formation, allowing electrical impulses to propagate through the scarred regions at speeds closer to normal tissue, thereby preventing arrhythmias while preserving the beneficial blood flow restoration from scar formation.
3Reliability
If passive barriers develop in the myocardium, then unidirectional block or reentrant arrhythmias are produced, but direct treatments for these conditions are limited
Solution Approach 1:
The invention extracts and addresses the root cause of passive barriers and arrhythmias by directly treating the scar tissue itself. Rather than managing symptoms or using complex multi-step procedures, the conductive polymer-hydrogel composite is injected directly into the scarred myocardium, where it actively works to restore electrical conduction by creating conductive pathways through the fibrotic tissue, thereby eliminating the substrate for arrhythmia formation.
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 conductive biomaterial enhances cardiac conduction velocities, promotes beneficial remodeling, prevents fibrotic tissue expansion, and improves heart function by lowering the threshold for cardiac action potential propagation, potentially serving as an alternative to cardiac ablation for treating arrhythmias.
Implementation Method 1
the conductive polymer and the biocompatible component are chemically conjugated to form a matrix throughout to form the material which is a homogenous hydrogel
Implementation Method 2
The present disclosure relates to a biocompatible, electrically conductive biomaterial capable of carrying the electrical potential of a cardiac impulse
Data Source
Figure 1
Figure 2A~2C
Figure 3
AI summary
A biocompatible, electrically conductive biomaterial capable of earn carrying the electrical potential of a cardiac impulse and comprising (l) a conductive polymer such as polyaniline, polypyrrole or polythiophene, and (ii) a biocompatible component such as a polysaccharide, a protein, or a polypeptide, in particular chitosan or gelatin, is described. The material can take the form of a hydrogel, membrane, sheet or mesh. It can be used to restore or improve electrical impulse propagation across damaged tissue or scar region of the myocardium, in particular in the ti treatment of myocardial infarction and arrhythmia.