Stereotactic Coordinate Adjuster for Deep Brain Stimulation
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Solution Overview
Problem
The manual adjustment of the Leksell frame in deep brain stimulation surgery is time-consuming and prone to imprecision due to its cumbersome and outdated design, which affects the precision required for successful surgical outcomes.
Innovation Solution
A stereotactic coordinate adjuster system that includes a locator for fine adjustment of Y-racks and Z-racks, along with ring support mechanisms, to provide stable and precise adjustments along the Y and Z axes, enhancing the stability and precision of the stereotactic frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual adjustment of the Leksell frame is performed using the original design, then the frame can be adjusted, but the adjustment process is time-consuming and imprecise
Solution Approach 1:
The patent replaces the original manual mechanical adjustment system with a coordinate adjuster mechanism that uses a standardized adjustment procedure. The adjuster involves moving a coordinate indicator along a scale and securing it at the desired position, which is more precise and faster than the original manual frame adjustment while maintaining mechanical operation.
Solution Approach 2:
The patent changes the adjustment parameters from manual frame component manipulation to a standardized coordinate indicator system. The adjuster uses a scale with marked positions and a coordinate indicator that can be precisely positioned and secured, transforming the adjustment process into a more controllable and repeatable parameter-based system.
2Measurement precision
If manual adjustment of the Leksell frame is performed multiple times, then positioning can be refined, but the complexity and difficulty of the adjustment process increases
Solution Approach 1:
The patent segments the adjustment process into distinct, manageable steps: moving the coordinate indicator to the desired position on the scale, securing it at that position, and then proceeding to the next adjustment step. This segmentation simplifies the overall adjustment mechanism by breaking down the complex frame adjustment into discrete, easier-to-perform operations.
Solution Approach 2:
The coordinate indicator serves as an intermediary element between the operator and the frame adjustment. Instead of directly manipulating the complex frame components, the operator adjusts the coordinate indicator, which then reflects the desired position. This intermediary simplifies the adjustment mechanism by providing a more straightforward interface for positioning.
3Strength
If the Leksell frame is designed with rugged construction from the 1940s, then structural strength is maintained, but ease of adjustment is reduced
Solution Approach 1:
The patent segments the adjustment function from the main frame structure by introducing a separate coordinate adjuster mechanism. The adjuster includes a coordinate indicator, scale, and securing mechanism that can be independently operated on the frame, allowing easy adjustment without compromising the rugged frame construction.
Solution Approach 2:
The patent introduces dynamic adjustment capability to the static rugged frame by adding a movable coordinate indicator that can be positioned along the scale and secured. This dynamic element allows the frame to be easily adjusted while maintaining its overall rugged construction, as the adjustment mechanism is integrated into the existing structure rather than replacing it.
Data Source
AI summary
Various embodiments of a stereotactic coordinate adjuster system and associated method for positional adjustment of components of a stereotactic system are disclosed herein. The system provides fine adjustment to the stereotactic system by providing form-fitting components that encapsulate components of the stereotactic system and allow for fine positional adjustment of an arc support member and a slide portion of the stereotactic system.