Spinal Instrument Movable Jaw for Precision Angulation
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Solution Overview
Problem
Current spinal implant systems lack versatility and precision in attaching and angulating spinal connectors during surgical procedures, particularly in revision surgeries, which can lead to suboptimal alignment and stability in treating spinal disorders such as scoliosis and kyphosis.
Innovation Solution
A surgical instrument with a pair of arms featuring projections that can engage with spinal implants in either a fixed or movable orientation, allowing for controlled angulation and attachment to existing spinal rods, facilitating precise alignment and extension of spinal constructs without disrupting existing implants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a surgical instrument engages with a spinal implant in a fixed orientation, then stability and alignment are improved, but versatility in accommodating different implant configurations is reduced
Solution Approach 1:
The surgical instrument incorporates a movable jaw that can transition between fixed and movable orientations relative to the spinal implant. This dynamic capability allows the instrument to adapt to different implant configurations while maintaining stability during engagement, resolving the contradiction between fixed stability and versatile adaptability
2Ease of manufacture
If a surgical instrument is designed with fixed orientation engagement, then manufacturing complexity is reduced, but the precision and control in angulating spinal connectors is worsened
Solution Approach 1:
The instrument incorporates a movable jaw mechanism that can transition between fixed and movable orientations, enabling precise control over connector angulation while maintaining reasonable manufacturing complexity through a mechanically straightforward actuation system
3Ease of operation
If existing spinal implants are disrupted during revision surgery, then ease of operation is improved, but stability and alignment of the spinal construct are worsened
Solution Approach 1:
The surgical instrument acts as an intermediary tool that engages with existing spinal implants without disrupting them. The movable jaw mechanism allows the instrument to interface with various implant configurations while maintaining their positional integrity, enabling revision surgery without compromising alignment or stability
Data Source
AI summary
A surgical instrument includes a first arm having a first part connectable with a first interface or a second interface of a spinal implant. A second arm includes a second part connectable with the first interface or the second interface. The first part is connectable with the first interface and the second part is connectable with the second interface to dispose the arms in a fixed orientation with the spinal implant. The first part is connectable with the second interface and the second part is connectable with the first interface to dispose the arms in a movable orientation relative to the spinal implant. Systems, spinal constructs, implants and methods are disclosed.