Bilateral Surgical Platform for Dual-Trajectory Instrument Alignment
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Solution Overview
Problem
Existing surgical procedures face challenges in precisely guiding multiple instruments along different trajectories without the use of cumbersome head frames, which are uncomfortable for patients and limit access and accuracy.
Innovation Solution
A bilateral surgical platform comprising two planar bodies, couplers, and a connector, all made of durable materials, that are custom-shaped to align two surgical instruments along distinct trajectories using a 3DoF CNC router, allowing for precise and adjustable alignment without interoperative adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional head frames are used to guide surgical instruments, then alignment accuracy is achieved, but patient comfort deteriorates and device complexity increases
Solution Approach 1:
The surgical guidance system is divided into separate functional components: small skull-implanted anchors serve as fiducial markers, while the surgical platform provides alignment functionality. This segmentation eliminates the need for a single large cumbersome frame, maintaining alignment accuracy while significantly improving patient comfort.
Solution Approach 2:
The fiducial marking function is extracted and implemented through tiny skull-implanted anchors, separating it from the main surgical platform. This allows the platform to be much smaller and lighter than traditional frames while maintaining the necessary alignment precision through the distributed anchor-based fiducial system.
2Measurement precision
If traditional head frames are used, then single instrument alignment is possible, but guidance of multiple instruments along different trajectories is limited
Solution Approach 1:
The surgical platform is designed with multiple planar bodies, each capable of aligning instruments along different trajectories. The platform can simultaneously guide multiple instruments for bilateral electrode insertions, making it a universal solution that replaces the need for multiple specialized framing systems.
Solution Approach 2:
The system transitions from single-trajectory alignment to multi-trajectory alignment by incorporating multiple planar bodies oriented at different angles and positions. This dimensional expansion allows simultaneous guidance of multiple instruments along different three-dimensional trajectories while maintaining precision for each individual instrument.
3Measurement precision
If rigid custom-shaped platforms are used with skull-implanted anchors, then accuracy improves and device weight is reduced, but structural strength must be maintained
Solution Approach 1:
The surgical platform incorporates titanium components for critical structural elements requiring high strength and rigidity, while other portions may use lighter materials. This composite material approach maintains the necessary structural strength to support surgical instruments and maintain alignment accuracy, while significantly reducing overall device weight compared to traditional all-metal frames.
Data Source
AI summary
The disclosure is directed to a Bilateral Surgical Platform that is configured to simultaneously align two surgical instruments along different trajectories during surgery including two planar bodies wherein each planar body includes a hole, two couplers wherein one coupler is inserted into the hole in one of the planar bodies and the other coupler is inserted into the hole in the other planar body, a connector wherein the connector is attached to each planar body, and further wherein each planar body comprises one or several legs with each leg configured to attach to an anchor implanted in a patient's head.