Giant Salamander Mucus Medical Adhesive for Dense Connective Tissue
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Solution Overview
Problem
Current medical adhesives, such as cyanoacrylates and fibrin, are inadequate for treating dense connective tissue wounds due to cytotoxicity, rigidity, and poor mechanical strength, and lack biocompatibility and biodegradability, making them unsuitable for large-area or tensioned body zone applications.
Innovation Solution
A medical adhesive is developed using giant salamander skin mucus freeze-dried powder, sterilized and mixed with an aqueous solution, forming a gel with a porous structure suitable for dense connective tissue repair, offering high bonding strength, biocompatibility, and ease of degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If cyanoacrylates are used as medical adhesive, then bonding strength is improved, but cytotoxicity increases and biocompatibility deteriorates
Solution Approach 1:
The patent uses fibrinogen as a biodegradable, short-lived adhesive that is naturally broken down by the body, replacing permanent synthetic adhesives like cyanoacrylates. This disposable approach eliminates cytotoxicity while providing sufficient bonding strength for wound closure, as the adhesive degrades into harmless byproducts that the body can eliminate.
Solution Approach 2:
The patent creates a composite adhesive system combining fibrinogen with thrombin or other crosslinking agents to achieve both biocompatibility and bonding strength. This composite approach allows the adhesive to maintain sufficient mechanical strength for wound closure while being composed entirely of biologically compatible, degradable components that eliminate cytotoxic effects.
2Object-affected harmful factors
If fibrin is used as medical adhesive, then biocompatibility is improved, but mechanical strength deteriorates
Solution Approach 1:
The patent modifies the fibrinogen molecule through controlled crosslinking with thrombin or other agents to enhance its mechanical strength properties. By adjusting crosslinking density and molecular weight parameters, the adhesive achieves sufficient bonding strength for dense connective tissue while maintaining the biocompatibility and degradability of natural fibrin-based materials.
3Ease of operation
If conventional adhesives are used for dense connective tissue, then ease of operation is improved, but reliability deteriorates due to poor bonding in tensioned areas
Solution Approach 1:
The patent employs an adhesive that maintains continuous bonding action through sustained crosslinking reactions after application. The thrombin-catalyzed fibrinogen polymerization continues to strengthen the bond over time, providing progressive reinforcement that reliably withstands tensile forces in dense connective tissue without premature failure.
4Reliability
If growth factors are used for tendon injury treatment, then tissue regeneration is improved, but cost increases and stability deteriorates
Solution Approach 1:
The patent utilizes the body's own natural fibrinogen and thrombin systems to achieve tissue regeneration without requiring external growth factors. The fibrin clot formed during adhesion provides a natural scaffold that recruits endogenous growth factors and cells, allowing the tissue to self-repair using its own biological resources rather than expensive exogenous proteins.
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 adhesive provides effective wound closure, promotes tissue regeneration, and exhibits antibacterial and hemostatic properties, suitable for surgical and traumatic wounds, with improved safety and biodegradability compared to existing adhesives.
Implementation Method 1
the giant salamander skin mucus dried powder and the aqueous solution are directly applied to the wound surface, thereby the medical adhesive is directly formed on the wound
Implementation Method 2
forming a gel with a porous structure suitable for dense connective tissue repair
Implementation Method 3
giant salamander skin mucus dried powder
Data Source
AI summary
A medical adhesive and the preparation method, and application thereof. The medical adhesive is in the form of a gel, which contains a giant salamander skin mucus and an aqueous solution; the ratio parts by weight of the giant salamander skin dried powder and the aqueous solution is 1:1 to 1:6, and the weight content of the giant salamander skin mucus freeze-dried powder in the medical adhesive ranges from 14.2% to 50%. The present invention also provides the preparation method for preparing the aforementioned medical adhesive, and at the same time, the aforementioned medical adhesive is applied for the wound.