Spinal Connector With Integrated Locking For Stress Reduction
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Solution Overview
Problem
Current spinal constructs for treating spinal disorders often require multiple points of fixation, which can increase stress on the spinal rods and complicate surgical procedures, while existing technologies lack efficient methods for minimally invasive, percutaneous insertion and versatile connection techniques.
Innovation Solution
A spinal construct system featuring a connector with a hook portion and tab extenders for percutaneous insertion, including a provisional locking mechanism and a cross-link spinal rod that reduces stress by integrating connections within existing interconnections, allowing for versatile alignment and minimally invasive procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If multiple points of fixation are used in spinal constructs, then stability and support are improved, but stress on spinal rods increases and surgical complexity increases
Solution Approach 1:
The patent merges the functions of multiple fixation points into a single integrated connector assembly that can engage multiple spinal rods simultaneously. The connector body with multiple engagement features combines what would otherwise require separate fixation elements, reducing stress concentration on individual spinal rods while maintaining stability.
Solution Approach 2:
The connector assembly is designed as a universal component that can accommodate and connect multiple spinal rods of different configurations. The multi-functional connector serves both as a stabilization element and a stress-distribution mechanism, allowing single-point engagement that secures multiple rods without requiring multiple separate fixation points.
2Stability of the object's composition
If traditional fixation methods are used, then spinal stability is achieved, but surgical procedure complexity and insertion difficulty increase
Solution Approach 1:
The spinal fixation system is segmented into modular components including the connector body, locking mechanisms, and engagement features that can be independently assembled and adjusted. This segmentation allows for simplified surgical insertion where each component can be positioned and secured separately, reducing overall procedural complexity while maintaining spinal stability.
Solution Approach 2:
The connector assembly is designed with pre-configured engagement features and locking mechanisms that are prepared in advance for specific rod configurations. This preliminary preparation of the connector geometry and locking features simplifies the surgical procedure by eliminating the need for complex intraoperative adjustments, while still achieving secure spinal stabilization.
3Reliability
If conventional connection techniques are used, then spinal rod connections are secured, but minimally invasive percutaneous insertion is limited
Solution Approach 1:
The connector assembly serves as an intermediary element that facilitates percutaneous insertion by providing a interface between the surgical approach and the spinal rods. The connector's design includes features that allow for guided insertion through soft tissue while maintaining secure engagement with the rods, enabling minimally invasive placement without compromising connection reliability.
Data Source
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AI summary
A spinal construct comprises at least one member that defines a first implant cavity and a second implant cavity oriented transverse to the first implant cavity. The at least one member has a surface that includes a lock disposed with the first implant cavity. Systems, implants, surgical instruments and methods of use are disclosed.