Flexible Band Connector for Adjustable Spinal Rod Fixation
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Solution Overview
Problem
Current methods for stabilizing and fusing adjacent vertebrae or bones are slow and complex, leading to prolonged recovery and potential damage, and there is a need for a more efficient and less invasive fixation and stabilization solution.
Innovation Solution
The use of a flexible fastening band connector system, comprising a flexible elongate body with a fastening mechanism, allows for secure fixation and stabilization of vertebrae or bones, with components designed to minimize damage and facilitate easy removal or replacement, and can be combined with other fixation devices for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fusion methods are used to stabilize adjacent vertebrae, then stabilization is achieved, but the procedure is slow and complex leading to prolonged recovery
Solution Approach 1:
The fixation system is divided into separate modular components including a connector with bone engagement features and a rod that can be independently positioned and secured. This segmentation allows for simpler, faster assembly compared to traditional fusion methods while maintaining stabilization effectiveness through the coordinated action of discrete elements.
Solution Approach 2:
The system incorporates dynamic adjustment capabilities where the rod can be positioned at various angles and heights relative to the connector, and the bone engagement features can be adjusted to fit different bone geometries. This dynamic adaptability speeds up the fixation process by eliminating the need for complex pre-planning and multiple surgical steps.
2Reliability
If traditional fixation devices are used, then bone stabilization is achieved, but the procedure is complex and invasive
Solution Approach 1:
The connector is designed as a universal component that can engage with various bone types and configurations through adjustable bone engagement features. The same basic connector design can accommodate different anatomical variations, reducing the need for multiple specialized devices and simplifying the surgical procedure while maintaining reliable bone stabilization.
Solution Approach 2:
The rod is designed to fit within or alongside the connector structure, with the bone engagement features nested within the connector body. This nested configuration reduces the overall number of external components needed and simplifies the assembly process, making the procedure less invasive while achieving effective bone fixation.
3Reliability
If fixed fixation devices are used, then stabilization is achieved, but the components cannot be easily removed or replaced
Solution Approach 1:
The connection between the rod and connector incorporates dynamic locking mechanisms that provide stable fixation during normal use but can be easily released with appropriate tools. This allows the components to remain securely in place for stabilization while enabling straightforward removal or replacement if needed, without compromising the initial fixation stability.
4Strength
If rigid fixation devices are used, then stable fixation is achieved, but damage to bones may occur
Solution Approach 1:
The bone engagement features are designed with locally optimized geometries that distribute fixation forces across specific bone regions rather than concentrating stress at single points. This localized force distribution maintains strong fixation while reducing the risk of bone damage or stress fractures, as each engagement point is tailored to the local bone structure.
Data Source
AI summary
A flexible fastening band connector can comprises a recess to receive a distal end portion of a flexible fastening band and lumen to receive the proximal end portion of the flexible fastening band. The lumen guides the proximal end portion of the flexible fastening band toward a fastening mechanism. The flexible fastening band connector can comprise an opening to receive a spinal rod. In operation, the spinal rod is coupled to additional devices to secure the spinal rod to portions of one or more vertebra. In some embodiments, a method of performing an operation, e.g. a spinal operation, on a patient using the disclosed connector is provided.