Bio-resorbable Composite Prosthetic for Directed Tissue Healing
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Solution Overview
Problem
Current anti-adhesion surgical barriers are ineffective in preventing excessive fibrosis and scarring after cardiac surgery, particularly due to their passive nature and inability to direct tissue healing in dynamic tissues like the heart, leading to chronic inflammation and adhesion formation.
Innovation Solution
A composite membrane prosthetic with bio-resorbable polymer layers and a conductive tissue scaffold that localizes tissue damage, minimizes mechanical stress, and promotes healing by allowing tissue growth into the scaffold, thereby reducing fibrosis and adhesion formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If thin-membrane implantation measures are used to attenuate adhesion following cardiac surgery, then temporary barrier to adhesion formation is provided, but the healing process is not directed toward tissue repair and excessive scar tissue forms
Solution Approach 1:
The patent employs a porous scaffold material that allows tissue ingrowth while maintaining structural integrity. The porosity enables cellular infiltration and directed tissue regeneration, solving the problem of non-specific scar formation by providing a structured pathway for organized tissue repair rather than random fibrosis.
Solution Approach 2:
The invention uses a composite structure combining biocompatible polymer materials with specific mechanical and biological properties. This composite approach integrates barrier functionality with tissue-directing capabilities, addressing both adhesion prevention and controlled tissue repair in a single system.
2Object-affected harmful factors
If passive anti-adhesion barriers are used, then adhesion formation is reduced, but tissue healing is not directed and chronic inflammation persists
Solution Approach 1:
The scaffold is designed to be self-directed in promoting tissue repair. Its structural properties and biocompatibility automatically guide cellular behavior and tissue regeneration without requiring external intervention, enabling the system to actively direct healing while maintaining adhesion resistance.
Solution Approach 2:
The porous scaffold acts as an intermediary between the surgical site and surrounding tissues, mediating the healing process by providing a structured environment for controlled tissue regeneration while preventing direct adhesion between opposing tissue surfaces.
3Duration of action of stationary object
If thin resorbable membranes are placed over affected tissue, then temporary barrier function is achieved, but excessive fibrosis occurs due to lack of healing direction
Solution Approach 1:
The porous structure of the scaffold allows it to maintain barrier function while simultaneously directing tissue ingrowth. This resolves the contradiction by enabling the barrier to be temporarily present for adhesion prevention while actively guiding organized tissue repair, thereby reducing excessive fibrosis.
4Adaptability or versatility
If continuous flexing and differential motion of cardiac tissue occurs, then cytokine release promoting chronic inflammation increases, but adhesion attenuation effectiveness decreases
Solution Approach 1:
The scaffold is designed with dynamic properties that allow it to accommodate continuous flexing and differential motion of cardiac tissue. This flexibility prevents mechanical failure under motion while maintaining the structural framework needed to direct tissue repair and reduce cytokine-mediated inflammation.
Data Source
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AI summary
Described are devices and methods for reinforcing a layer of living tissue, which when affixed to a tissue layer prior to surgical incision, reinforces the tissue to be incised, provides a fibro-conductive matrix to promote healing in a preferred plane, and provides for a subsequent closure and fluidic seal. A partially or entirely absorbable growth matrix is disclosed, comprising two adhesion-resistant layers enclosing a cellular conductive medium for promoting fibrosis in a preferred plane. The cellular conductive portion is partially or entirely sequestered from surrounding tissue. The device is constructed in a physiologic range of tensile strengths and elasticity suitable for closure of the pericardium, peritoneum, or oth er typically thin membranes enclosing organs in the body, whose function is to prevent adhesions between tissue surfaces normally in motion.