Segmented Film Mesh Composite for Hernia Repair
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Solution Overview
Problem
Current surgical meshes used in hernia repair lack integration with unique patient/anatomical features and integrity of film/mesh attachment, which can lead to issues with tissue ingrowth, adhesions, and therapeutic agent delivery.
Innovation Solution
An implantable medical device comprising a surgical mesh with a polymeric film having attached and unattached portions, creating an aperture, which promotes tissue ingrowth, prevents adhesions, and facilitates therapeutic agent delivery, while maintaining mesh attachment and support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a film is fully attached to the mesh, then structural integrity is improved, but tissue ingrowth and therapeutic agent delivery are hindered
Solution Approach 1:
The film is divided into attached portions (first and second portions) and unattached portions (third portion), allowing different regions to serve different functions. The attached portions provide structural integrity while the unattached portions enable tissue ingrowth and therapeutic agent delivery.
Solution Approach 2:
Different portions of the film have different attachment states to the mesh. The first and second portions are attached to provide strength, while the third portion remains unattached to create an aperture that allows tissue interaction and therapeutic agent delivery, creating local functional differences.
2Strength
If a film is fully attached to the mesh, then structural integrity is improved, but therapeutic agent delivery is reduced
Solution Approach 1:
The film is segmented into attached and unattached portions, where the unattached third portion creates an aperture that serves as a pathway for therapeutic agent delivery while the attached portions maintain structural integrity.
Solution Approach 2:
The unattached third portion of the film acts as an intermediary structure that bridges the attached portions while creating an aperture space that facilitates therapeutic agent delivery to the surrounding tissue.
3Device complexity
If the mesh is used alone, then simplicity is maintained, but adhesion prevention and enhanced tissue integration are insufficient
Solution Approach 1:
The implant combines mesh and film materials into a composite structure. The mesh provides structural support while the film layer, particularly the unattached third portion, prevents adhesions and enhances tissue integration, creating a composite material system with multiple functions.
Solution Approach 2:
The mesh and film are merged into a single implantable device where the film is partially attached to the mesh. This combination integrates the adhesion prevention properties of the film with the structural support of the mesh in a unified device.
Data Source
AI summary
The present disclosure relates to implantable medical devices which include at least one mesh and at least one film attached to the mesh along different portions of the mesh creating at least one aperture between the mesh and the film.