Reinforced Electrospun Fibrous Membrane with Interlaced Threads
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Solution Overview
Problem
Electrospun fibrous membranes lack mechanical strength, making them unsuitable for applications requiring high mechanical properties, and when reinforced with braided membranes, they are difficult to integrate and prone to separation, leading to discomfort and inefficiency in tissue repair.
Innovation Solution
A reinforced electrospun fibrous membrane is created by integrating parallel reinforcing thread sets with interlaced main and auxiliary threads, which are twisted and sewn onto the membrane to enhance mechanical properties and adhesiveness, allowing the membrane to be folded or rolled without detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrospun fibrous membranes are used to repair soft tissues, then biocompatibility and ease of cell growth are improved, but mechanical strength is insufficient
Solution Approach 1:
The patent combines electrospun fibrous membranes with braided membranes to create a composite structure. The electrospun membrane provides biocompatibility and cell growth properties, while the braided membrane contributes mechanical strength. This composite approach resolves the contradiction by integrating materials with complementary properties.
2Strength
If braided membranes are combined with electrospun membranes to improve mechanical properties, then mechanical strength is enhanced, but the composite membrane becomes difficult to cut and fold
Solution Approach 1:
The patent applies local quality by positioning the braided membrane specifically at the edges of the electrospun membrane rather than throughout the entire structure. This localized reinforcement provides mechanical strength where needed for structural integrity while leaving the central electrospun region soft and pliable for easy cutting and folding.
3Strength
If braided membranes are used to reinforce electrospun membranes, then mechanical properties are improved, but the two membranes are prone to separation
Solution Approach 1:
The patent merges the braided membrane and electrospun membrane into a single integrated composite structure. The braided membrane is positioned at the edges and physically integrated with the electrospun membrane, creating a unified structure that prevents separation and ensures stable composition during implantation and tissue repair.
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 reinforced membrane achieves improved mechanical strength, ease of shaping, and excellent adhesiveness, ensuring stability and comfort post-implantation, with the ability to be made from degradable materials that facilitate tissue growth and reduce residue.
Implementation Method 1
electrospun fibrous membrane
Data Source
AI summary
The present disclosure discloses reinforced electrospun fibrous membranes and preparation methods therefor. The reinforced electrospun fibrous membranes can include an electrospun fibrous membrane body and a plurality of reinforcing thread sets fixed to the electrospun fibrous membrane body through holes thereon, wherein any two of the plurality of reinforcing thread sets are parallel to each other; each of the reinforcing thread sets comprises a starting end and a terminal end, both being connected to an edge of the electrospun fibrous membrane body; each of the reinforcing thread sets comprises at least one reinforcing fibrous thread consisting of a main thread and an auxiliary thread respectively arranged at a front side and a bottom side of the electrospun fibrous membrane body and configured to interlace each other at the through hole. By providing reinforcing thread sets on the electrospun fibrous membrane body to impart the electrospun fibrous membrane with a greater mechanical property, the mechanical strength required for the movement of the tissue is ensured, and the electrospun fibrous membrane is easy to be folded or rolled into other shapes. The electrospun fibrous membrane body may be made of degradable materials, which are gradually degraded and absorbed in the process of inducing new tissue formation, thereby providing space for the formation of new tissues.