Spinal Reduction Instrument with Throughbore for Simultaneous Rod Compression and Plug Securing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current orthopedic instruments lack an efficient mechanism for reducing rods into fixation members within the spinal column, requiring multiple steps and tools, which complicates the correction of spinal deformities during surgical procedures.
Innovation Solution
A combination reduction and rotation instrument with a reducing mechanism featuring a throughbore and drive mechanism that allows for direct engagement and reduction of rods into saddle fixation members, enabling simultaneous correction of spinal deformities with reduced procedural complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple separate instruments and tools are used for reducing rods into fixation members, then the reduction function can be achieved, but the device complexity and procedural steps increase
Solution Approach 1:
The patent combines multiple separate instruments (reduction instrument and rotation instrument) into a single integrated surgical instrument. The reduction mechanism and rotation mechanism are merged within one device, allowing both rod reduction and vertebral body rotation to be performed without changing instruments during the procedure. This directly resolves the contradiction by reducing the number of instruments while maintaining full functionality.
Solution Approach 2:
The surgical instrument is designed with multi-functionality, serving both as a reduction instrument for compressing rods into fixation members and as a rotation instrument for rotating vertebral bodies. The single instrument performs multiple surgical functions that previously required separate specialized tools, thereby simplifying the procedure while maintaining operational effectiveness.
2Productivity
If multiple separate instruments are used for spinal deformity correction, then complete functionality is achieved, but surgical time increases
Solution Approach 1:
By merging the reduction and rotation functions into a single instrument, the surgical workflow is streamlined. The surgeon does not need to remove and replace instruments between reduction and rotation steps, eliminating transition time and improving overall surgical efficiency. This directly addresses the time loss associated with using multiple separate instruments.
3Ease of operation
If a throughbore is included in the reducing mechanism, then access for drive members is improved, but the device complexity increases
Solution Approach 1:
The reducing mechanism is segmented to include a throughbore that provides a clear pathway for drive members. This segmentation creates distinct functional zones: the throughbore for tool access, the reduction mechanism for compression, and the rotation mechanism for vertebral rotation. This modular segmentation improves accessibility while organizing complexity into manageable, functional segments.
Data Source
AI summary
A surgical instrument for reducing a rod into a saddle of a fixation member includes a distal end for engaging the saddle and a proximal end. A reducing device is disposed between the distal end and the proximal end. The reducing device is operative to reduce the rod into the saddle. The reducing device defines a throughbore. The throughbore provides access there through by a first drive member to secure a plug to the saddle.