Dorsal Multi-Rod Connector with Compressible Passages
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Solution Overview
Problem
Current spinal implant and connection systems are often complex and limited in versatility, requiring specific components for each application, which can complicate surgical procedures and reduce flexibility in correcting spinal injuries or deformities.
Innovation Solution
An adjustable connector apparatus comprising a connecting body with bifurcated slots, compressible passages, and split ring members that allow for the secure connection of spinal rods or elongated members to bone anchors, enabling flexible positioning and stabilization of vertebrae through a collet and nut mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional spinal implant systems use multiple specific components for different applications, then the system can address various spinal conditions, but the device complexity and surgical procedure complexity increase
Solution Approach 1:
The connector body is designed with multiple passages (first, second, third, and fourth passages) that can accommodate different rod configurations and orientations. The same connector body can secure one rod, two rods, or multiple rods through its various passages, eliminating the need for different connector types for different rod arrangements. This multi-functional design directly addresses the contradiction by providing universal applicability across various spinal correction scenarios while maintaining a single connector design.
Solution Approach 2:
The connector body is divided into multiple independent passages, each capable of receiving and securing rods separately. This segmentation allows each passage to be independently configured and locked, providing versatility in rod placement while keeping the overall connector design unified. The segmented structure enables different combination possibilities without requiring multiple connector types.
2Reliability
If traditional systems require specific components for each application, then targeted treatment is possible, but the ease of operation during surgery decreases
Solution Approach 1:
The connector body allows dynamic adjustment of rod positions and orientations through its multiple passages and locking mechanisms. Surgeons can adjust the configuration intraoperatively to match the specific surgical needs, providing both targeted treatment and surgical flexibility. The ability to dynamically reconfigure the connector during surgery resolves the contradiction between targeted treatment and ease of operation.
3Adaptability or versatility
If multiple specific components are used in spinal implant systems, then specific spinal conditions can be addressed, but the quantity of components and inventory requirements increase
Solution Approach 1:
The connector body serves multiple functions within a single component design. It can secure one rod, two rods, or multiple rods; accommodate different rod orientations; and address various spinal correction needs. This universality reduces the number of different connector types needed in the surgical inventory, directly addressing the contradiction between versatility and component quantity.
Data Source
AI summary
An orthopedic implant is disclosed having at least one passage for an elongated member that is compressible. In certain embodiments, multiple compressible elongated member passages may be provided, or an elongated member passage may be U-shaped and closable by a closure member. Split ring members may be provided in compressible passages and around elongated members. A bone anchor may be connected to the implant so that locking the anchor to the implant compresses one or more of the elongated member passages.