Micronized Porcine Collagen Powder for Irregular Wound Contact
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Solution Overview
Problem
Existing wound management technologies struggle with irregularly shaped and tunnelling wounds, and chronic wounds are exacerbated by bacterial colonization and biofilm, necessitating improved wound care modalities that can directly contact the wound bed and address microbial burden.
Innovation Solution
A micronized collagen composition comprising particles with an average diameter of 1000 micrometers or less, primarily composed of porcine collagen, which includes an antimicrobial agent like polyhexamethylene biguanide (PHMB) to manage wounds, including cleaning and applying the composition to ensure direct wound contact and microbial control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If standard sheet-based wound management modalities are used, then they are simple to apply, but they cannot effectively contact irregularly shaped and tunnelling wounds
Solution Approach 1:
The ECM is micronized into fine particles (average particle size of 100-500 micrometers) to create a powder form that can be applied to irregularly shaped and tunnelling wounds. This segmentation of the ECM into smaller particles allows the material to conform to complex wound geometries while maintaining ease of application through powder or paste form delivery.
2Adaptability or versatility
If ECM is micronized to form powder for direct wound contact, then it can effectively treat irregular wounds, but it increases complexity of product formulation
Solution Approach 1:
The ECM undergoes controlled micronization to achieve specific particle size parameters (average 100-500 micrometers) that optimize both wound contact capability and formulation manageability. This parameter control allows the powder to be effectively applied to irregular wounds while maintaining a standardized, manageable product form that can be delivered as powder or paste.
3Object-affected harmful factors
If antimicrobial components are added to ECM powder, then bacterial colonization and biofilm are addressed, but it increases product complexity
Solution Approach 1:
The ECM powder is formulated as a composite material combining decellularized extracellular matrix with antimicrobial agents. This composite approach addresses bacterial colonization and biofilm while maintaining a single integrated product that delivers both wound bed contact and microbial control functions.
4Reliability
If ECM is derived with cellular components, then it maintains biological activity, but it increases risk of immune response and contamination
Solution Approach 1:
The ECM is decellularized through controlled processing that extracts and removes cellular components while preserving the extracellular matrix structure and biological activity. This extraction of cells reduces immune response and contamination risk while maintaining the therapeutic benefits of the ECM for wound management.
Data Source
AI summary
The present disclosure provides compositions and methods related to wound management. The compositions include a micronized extracellular matrix and in some instances one or more antimicrobial agents. In some embodiments, the extracellular matrix is comprised of a porcine purified collagen wound matrix (CWM) and polyhexamethylene biguanide (PHMB). The composition is formulated as a powder and may be applied to a wound as a powder, or hydrated and applied to a wounds as a paste or a slurry.