Tissue Matrix Preformed Openings Fixation Strength
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Solution Overview
Problem
Midline incisions in surgical procedures often result in weaker scar tissue at the linea alba, leading to a high incidence of hernia formation due to the avascular nature of this structure, and existing tissue matrix products can be challenging to fixate during laparoscopic surgeries without compromising tensile strength.
Innovation Solution
Development of tissue matrix products with preformed openings such as holes or divots that facilitate fixation using sutures, clips, or adhesives, while maintaining tensile strength and suture retention strength, allowing for easier implantation and secure attachment to anatomical sites.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If tissue matrix products are made as flexible sheets without openings, then tensile strength and structural integrity are maintained, but fixation during surgery becomes challenging and time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-forming openings in the tissue matrix product before implantation. These openings are created in advance at strategic locations to facilitate suture passage and fixation device insertion, eliminating the need to create openings during surgery and reducing operative time while maintaining structural integrity through careful placement and sizing
2Ease of operation
If openings are added to tissue matrix sheets to facilitate fixation, then ease of fixation improves, but tensile strength and suture retention strength may be compromised
Solution Approach 1:
The patent applies local quality by creating openings with specific characteristics at specific locations on the tissue matrix. The openings are positioned in the perimeter region away from central load-bearing areas, and their size (0.5-2.0 mm) and distribution are optimized to provide fixation access while maintaining overall structural strength and suture retention capabilities
Solution Approach 2:
The patent applies parameter changes by carefully controlling the size, number, and distribution of openings to optimize the balance between fixation accessibility and mechanical strength. The openings are designed with specific dimensional parameters (0.5-2.0 mm diameter, particular spacing patterns) that allow secure fixation while preserving the tissue matrix's tensile and suture retention strengths
3Adaptability or versatility
If material is removed to create pilot holes for laparoscopic tackers, then fixation capability improves, but tissue matrix integrity may be reduced
Solution Approach 1:
The patent applies preliminary action by pre-forming pilot holes at designated locations before implantation. These pilot holes are created in advance to guide tacker insertion during laparoscopic procedures, improving fixation capability while maintaining tissue matrix integrity through controlled removal of minimal material at strategic peripheral locations
Data Source
AI summary
The present disclosure relates to tissue matrix products. The products can include tissue matrices that have openings such as holes or perforations located at certain positions to improve various functions without substantial loss of strength or other important properties. The openings can facilitate implantation of the tissue matrices in surgical procedures thereby speeding operation times and potentially improving surgical results.