Barbed Fixation Device Delivery for Low-Waste Hernia Mesh Anchoring
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Solution Overview
Problem
Current mesh tacking devices in hernia repair are prone to jamming, require excessive use of absorbable material, and often result in improper deployment of tacks, leading to inefficiencies and increased costs.
Innovation Solution
A two-part fixation device system with a barb that becomes active upon deployment in the abdominal wall, securing the mesh with lower tension and requiring fewer tacks, utilizing a delivery system with a driver and cartridge to precisely place tacks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional tacking devices are used to secure mesh in hernia repair, then mesh fixation is achieved, but the devices are prone to jamming and require excessive use of absorbable material
Solution Approach 1:
The fixation device is divided into two separate parts: a barb component that anchors into the abdominal wall and an abutment component that contacts the mesh. This segmentation allows each component to be optimized independently and deployed in a controlled sequence, reducing jamming issues and material waste
Solution Approach 2:
The barb component is pre-loaded into the delivery device in a constrained state. During deployment, the barb is first inserted into the abdominal wall, then the abutment is deployed to contact the mesh. This preliminary positioning ensures proper sequence and reduces deployment failures
2Area of stationary object
If multiple tacks are deployed using traditional devices, then mesh coverage is achieved, but the cost increases due to excessive absorbable material usage
Solution Approach 1:
The two-part fixation device concentrates its securing function at two specific locations: the barb in the abdominal wall and the abutment on the mesh. This localized fixation approach provides effective anchoring with fewer devices, reducing overall material consumption while maintaining adequate mesh coverage
Solution Approach 2:
The absorbable material in the fixation device is designed to be fully utilized and absorbed by the body over time. The precise deployment mechanism ensures that each tack uses its full material capacity effectively, eliminating the waste associated with failed deployments or excessive usage
3Strength
If traditional tacking methods are used, then mesh is secured to abdominal wall, but the devices often jam and require counter pressure application
Solution Approach 1:
The fixation device incorporates dynamic deployment mechanisms where the barb and abutment are released in a specific sequence. The barb is first inserted into the abdominal wall, then the abutment is deployed to contact the mesh. This dynamic, staged deployment reduces jamming by ensuring proper positioning at each step
Solution Approach 2:
The delivery device acts as an intermediary that controls the deployment sequence of the two-part fixation system. It holds the barb in a constrained state, inserts it into the abdominal wall, then releases the abutment to complete the fixation. This intermediary control mechanism simplifies operation by automating the complex sequencing
Data Source
AI summary
A fixation device delivery system is described. The system includes a driver and a cooperating fixation element featuring a barb which becomes active upon deployment in the inner abdominal wall.