Spinal Correction System With Rotatable Plates For Vertebral Alignment
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Solution Overview
Problem
Current surgical methods for correcting spinal disorders, such as scoliosis and kyphosis, face challenges in effectively aligning and stabilizing vertebrae, often requiring multiple steps and tools, which can complicate the surgical process and reduce precision.
Innovation Solution
A spinal correction system comprising interconnected plates with cavities and actuator mechanisms that allow for rotatable engagement of implant supports, enabling releasable fixation and derotation forces to be applied, facilitating precise alignment and stabilization of vertebrae without the need for multiple locking steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional surgical methods are used for correcting spinal disorders, then multiple steps and tools are required to align and stabilize vertebrae, but this complicates the surgical process and reduces precision
Solution Approach 1:
The patent combines multiple surgical functions into a single integrated correction system. The linkage assembly integrates derotation capability, alignment adjustment, and stabilization functions that traditionally required separate tools and multiple surgical steps. This merging of functions reduces procedural complexity while maintaining or improving alignment precision through unified control mechanisms.
Solution Approach 2:
The correction system is designed as a multi-functional device that can perform derotation, alignment, and stabilization operations simultaneously. The linkage assembly can engage with different implant supports and apply various correction forces through a single integrated structure, eliminating the need for multiple specialized tools and simplifying the surgical workflow while achieving precise vertebral alignment.
2Reliability
If traditional fixation methods are used, then multiple locking steps are required to stabilize vertebrae, but this increases procedural complexity and time
Solution Approach 1:
The linkage assembly is pre-configured with engagement features and derotation capabilities before being applied to the vertebrae. The design allows for preliminary positioning and engagement of the implant supports, reducing the need for multiple post-installation locking steps. This preliminary configuration enables faster fixation while maintaining stability through the integrated derotation and locking mechanism.
3Productivity
If conventional alignment tools are used, then separate tools are needed for derotation and alignment, but this increases the number of steps and reduces efficiency
Solution Approach 1:
The patent merges derotation and alignment functions into a single linkage assembly that can perform both operations simultaneously. The integrated design eliminates the need for separate derotation tools and alignment instruments, reducing the number of surgical steps required while improving overall surgical efficiency through unified control of multiple correction functions.
Data Source
AI summary
A spinal correction system comprises a first member defining a longitudinal axis and including an inner surface that defines a first cavity and a second cavity. A second member defines a longitudinal axis and includes an inner surface that defines a first cavity and a second cavity. The members are connected along a first axis disposed in substantially parallel relation to the longitudinal axes. At least one first implant support is configured for disposal within the first cavities. At least one second implant support is configured for disposal within the second cavities. The members are rotatable about the first axis to space apart the members such that the inner surfaces forcibly engage the supports in releasable fixation. Methods of use are disclosed.