Separated Suture Conduits to Prevent Crimping in Bone Fixation
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Solution Overview
Problem
Deformable suture corridors cause suture constriction and breakage due to crimping, complicating surgical procedures and reducing repair durability.
Innovation Solution
A suture corridor system with separated tubular conduits that intersect or are parallel, featuring isolated inner channels and apertures to prevent suture friction and allow easy sliding, coupled with an insertion tool and anchor tip for secure fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the suture corridor is designed to be deformable to engage bone and resist withdrawal, then fixation strength is improved, but the suture pathway constricts and causes suture crimping and breakage
Solution Approach 1:
The suture corridor is divided into multiple separate tubular conduits (first conduit, second conduit, etc.) that are coupled together. Each conduit has its own isolated inner channel that allows suture passage. This segmentation prevents the constricting forces from affecting the entire suture pathway uniformly, reducing crimping while maintaining the deformable fixation function of the overall anchor structure.
Solution Approach 2:
The patent introduces multiple conduits arranged in different spatial orientations (intersecting or parallel) to provide multiple dimensions for suture passage. By distributing sutures across multiple spatial pathways rather than a single constricted path, the design reduces friction and crimping forces on individual sutures while maintaining secure bone engagement through the deformable structure.
2Reliability
If the suture corridor deforms to secure tissue to bone, then fixation reliability is improved, but suture friction increases causing difficult sliding and potential breakage
Solution Approach 1:
By segmenting the suture corridor into multiple separate conduits, each with its own inner channel, the patent reduces the friction that sutures experience during sliding. The segmentation creates multiple independent pathways that distribute the mechanical stress and reduce constriction forces on individual sutures, making them easier to pass through while maintaining reliable fixation when the anchor deforms.
Solution Approach 2:
The patent provides more suture pathways (multiple conduits) than a single corridor would provide. This excessive action of creating redundant pathways ensures that sutures have ample space to slide through without excessive friction, while the deformable nature of the conduits still provides sufficient fixation reliability when engaged with bone.
Data Source
AI summary
A deformable suture corridor having separated conduits. The deformable suture corridor includes a first and a second tubular conduit. Both tubular conduits include an outer wall that is open at both ends thereof, an inner channel extending between both ends of the outer wall, and a pair of apertures in the outer wall that are in communication with the inner channel. The first conduit is coupled to the second conduit.


