Resorbable Tissue-Derived Porous Matrices for Atraumatic Wound Healing
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Solution Overview
Problem
Existing wound dressings for reduced pressure therapy are non-resorbable, requiring removal and causing trauma to newly formed tissue, and pose risks when used near vital organs or blood vessels, while lacking enhanced cell infiltration and tissue remodeling capabilities.
Innovation Solution
Development of tissue-derived porous matrices, such as decellularized dermis and placental matrices, which are resorbable, provide a scaffold for tissue ingrowth, and allow fluid flow, promoting wound healing without the need for removal, and can be used with or without reduced pressure therapy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If non-resorbable porous components are used in reduced pressure therapy dressings, then fluid distribution and wound healing promotion are improved, but the components require removal causing trauma to newly formed tissue and pose risks near vital organs
Solution Approach 1:
The patent applies parameter changes by transitioning the porous component material from non-resorbable to resorbable, fundamentally changing its degradation behavior in the body. This allows the component to gradually break down into harmless byproducts that are absorbed by the body, eliminating the need for surgical removal and associated tissue trauma while maintaining therapeutic functionality during the healing process
Solution Approach 2:
The resorbable porous component functions as a disposable implant that serves its therapeutic purpose temporarily and then self-eliminates. Rather than requiring permanent retention or complex removal procedures, the component is designed to complete its function and then naturally degrade, reducing long-term risks and complications associated with foreign body retention
2Strength
If non-resorbable porous components are used, then structural support is maintained, but erosion risks occur when placed near vital organs, nerves, or blood vessels
Solution Approach 1:
The material parameter change from non-resorbable to resorbable fundamentally alters the interaction with vital structures. The component maintains structural support during the healing period and then gradually degrades, eliminating the long-term erosion risk that characterizes permanent implants near sensitive anatomical structures
Solution Approach 2:
The potential harm of material persistence near vital organs is converted into a benefit through controlled resorbability. The component's ability to degrade on its own timeline transforms what would be a hazard (permanent foreign body) into a therapeutic advantage (temporary support followed by natural elimination)
3Quantity of substance
If traditional porous components are used, then fluid flow is achieved, but cell infiltration and tissue remodeling capabilities are limited
Solution Approach 1:
The patent employs composite material strategy by combining the porous structural framework with resorbable material properties. This composite approach allows the component to simultaneously provide fluid distribution pathways and support tissue remodeling through its degradation products, which can act as scaffolds for new tissue formation and release growth factors
Solution Approach 2:
The resorbable porous component performs self-service by automatically providing tissue remodeling capabilities through its degradation process. As the material breaks down, it actively promotes tissue ingrowth and remodeling without requiring additional interventions, transforming from a passive fluid distribution device to an active tissue regeneration catalyst
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 tissue-derived matrices enhance wound healing by providing a biocompatible scaffold for new tissue growth, reducing trauma, and supporting angiogenesis, with the ability to remodel into native tissue, thus improving healing efficiency and convenience.
Implementation Method 1
the matrix is resorbable and has a plurality of interconnected pores which allow fluid flow through the matrix
Implementation Method 2
the matrix at least partially degrades, partially remodels with native tissue at the wound site, or both
Data Source
AI summary
Tissue derived porous matrices for treating wounds are provided, as well as methods for making and using them. The tissue derived porous matrices comprise processed tissue of any of several types, such as dermis, adipose, etc., and have a plurality of interconnected pores which allow fluid flow through the matrices. The tissue derived matrices are biocompatible resorbable matrices which remodel with native tissue and facilitate and enhance cell infiltration and tissue ingrowth into the matrices, thereby enhancing wound healing and tissue remodeling when implanted into a patient. The tissue derived matrices are useful for treating wounds and, due to their biocompatibility and remodeling properties, they provide the option of removing or leaving in place one or more portions of the matrices which remain unincorporated some period of time after implanting, thereby avoiding the need to repeatedly revisit the treatment site to remove previously implanted matrices.