Variable Depth Surgical Fastening Device for Hernia Mesh
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Solution Overview
Problem
Current methods for hernia mesh fixation lack the ability to accommodate variations in abdominal wall thickness, leading to complications such as inadequate mesh fixation or excessive post-operative pain due to the fixed length of fasteners.
Innovation Solution
A fastening device that can be loaded with fasteners of varying sizes, allowing surgeons to select the appropriate length without switching devices, by using interchangeable cartridges or mixing fasteners within a single device, ensuring secure mesh fixation without excessive tissue penetration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fasteners of fixed length are used for mesh fixation, then the device complexity is reduced and ease of operation is improved, but the adaptability to different abdominal wall thicknesses deteriorates and complications increase
Solution Approach 1:
The fastening system is segmented into multiple cartridges, each containing fasteners of a specific length. This allows the surgeon to divide the fixation task into segments corresponding to different tissue thicknesses, achieving adaptability without requiring a single complex device to handle all variations.
Solution Approach 2:
The fastening device is designed with universal functionality to accept multiple cartridge types. The device body remains the same, but it can be configured with different cartridges containing fasteners of varying lengths, making the device adaptable to different abdominal wall thicknesses while maintaining operational simplicity.
2Reliability
If longer fasteners are used to ensure secure fixation in thick abdominal walls, then the fixation reliability is improved, but the harmful effects on the patient increase due to excessive tissue penetration and post-operative pain
Solution Approach 1:
The solution applies local quality by providing fasteners with specifically tailored lengths for different anatomical locations and tissue thicknesses. Each cartridge contains fasteners optimized for a particular depth requirement, ensuring that the fixation reliability is sufficient for each local condition without excessive penetration that would cause harm.
Solution Approach 2:
The invention changes the parameter of fastener length to match the specific requirements of different patients and anatomical sites. By adjusting this critical parameter through cartridge selection, the system achieves optimal fixation reliability while minimizing harmful effects from over-penetration.
3Adaptability or versatility
If multiple different fastening devices are used to accommodate different fastener lengths, then the adaptability is improved, but the ease of operation deteriorates and the risk of complications increases
Solution Approach 1:
The fastening device incorporates universal design principles by creating a single device body that can accept multiple cartridge types. This multi-functionality allows the surgeon to maintain ease of operation with one device while achieving fastener length variability through cartridge interchangeability.
Solution Approach 2:
The system prepares multiple cartridges with different fastener lengths in advance, allowing the surgeon to select the appropriate cartridge before the procedure or during surgery. This preliminary preparation maintains operational simplicity while providing the necessary adaptability for different anatomical conditions.
Data Source
AI summary
The invention generally relates to devices for fastening a hernia mesh. The invention provides a surgical fastening device that includes a shaft with a fastener carrier disposed at least partially within the shaft, in which the carrier is configured to accept fasteners of a plurality of different sizes. Different sized fasteners can be preloaded in interchangeable carriers or even mixed together within a carrier in the fastening device. The device can deliver the fasteners to different depths in a patient's tissue.