Skirted Hernia Repair Device Reinforcement Members

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Solution Overview

Problem

Skirted hernia repair devices face challenges in maintaining their flatness during implantation, as they can easily invert, making it difficult for surgeons to secure them properly to the surrounding tissue, leading to potential complications and higher recurrence rates.

Innovation Solution

The introduction of a skirted hernia repair device with multiple skirted sections and reinforcement members positioned near the inner peripheral edge of the skirt mesh layer to prevent inversion, ensuring a stable pocket for secure fastening during implantation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a skirted hernia repair device is used to provide added strength and lower recurrence rate, then the reliability of hernia repair is improved, but the device becomes prone to inverting during implantation, making it difficult to secure properly

Engineering Contradiction:
Improvehernia repair reliabilityVSAvoidease of securing device
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent applies preliminary action by pre-positioning reinforcement members at specific locations on the device before implantation. These reinforcement members are placed to prevent inversion during the surgical procedure, ensuring the device maintains its correct orientation when the surgeon attempts to secure it to the tissue. This preliminary structural preparation resolves the contradiction by making the device easier to secure while maintaining its reliability benefits.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If the skirt mesh layer is made flexible to allow for tissue integration, then the adaptability to surrounding tissue is improved, but the device becomes easily inverted prior to and during implantation

Engineering Contradiction:
Improvetissue integration adaptabilityVSAvoiddevice flatness stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent applies local quality by placing reinforcement members at specific strategic locations on the skirt mesh layer rather than uniformly throughout the entire device. These localized reinforcement elements provide stability precisely where needed to prevent inversion during handling and securing, while leaving the rest of the mesh layer flexible and adaptable for tissue integration. This localized approach resolves the contradiction between flexibility and stability.

Inventive Principle:
Principle #3Local quality

3Stability of the object's composition

If reinforcement members are added to prevent inversion, then the stability of the skirt mesh layer is improved, but the device complexity increases

Engineering Contradiction:
Improveskirt mesh layer stabilityVSAvoiddevice structure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the reinforcement function into discrete, separate reinforcement members rather than creating a single complex reinforcement structure. These individual reinforcement members can be independently positioned and secured to the skirt mesh layer, providing stability while maintaining relatively simple device architecture. The segmentation approach resolves the contradiction by achieving stability without excessive complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11974908B2Skirted hernia repair device
Publication Date: 2024.05.07 COVIDIEN LP
  • US11974908B2 patent drawing
  • US11974908B2 patent drawing
  • US11974908B2 patent drawing

AI summary

The present disclosure relates to skirted hernia repair devices which includes at least a first mesh layer having a first side, a second side, and an outer peripheral edge, a skirt mesh layer positioned on the first side of the first mesh layer, the skirt mesh layer having an inner peripheral edge defining an opening in the skirt mesh layer, and, at least one reinforcement member that prevents the skirt mesh layer from inverting.