AR Surgical Navigation for Guide Pin Entry and Trajectory Alignment
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Solution Overview
Problem
Surgeons face challenges in accurately transferring preoperative surgical plans to the intraoperative surgical site during orthopedic procedures, particularly in establishing the entry point and trajectory of surgical positioning objects like guide pins, which affects surgical outcomes.
Innovation Solution
Utilizing augmented reality navigation and visualization techniques to provide a virtual environment that allows for precise alignment of surgical positioning objects by indicating desired entry points and trajectories, with real-time feedback on accuracy, enabling registration of virtual bone models to patient anatomy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional surgical navigation methods are used, then the surgical procedure can be performed, but the accuracy of transferring preoperative surgical plans to the surgical site is insufficient
Solution Approach 1:
The patent introduces an augmented reality navigation system as an intermediary between the preoperative surgical plan and the intraoperative surgical site. The AR system overlays virtual surgical guides and trajectories onto the actual anatomy, providing real-time visual alignment cues that bridge the gap between planning and execution, thereby improving transfer accuracy without increasing operational difficulty
Solution Approach 2:
The patent replaces traditional mechanical alignment tools and manual positioning methods with an augmented reality-based visual guidance system. Instead of relying solely on physical guides and manual alignment, the system uses virtual overlays, augmented reality visualization, and image processing to provide automated trajectory guidance, improving both accuracy and ease of operation
2Manufacturing precision
If augmented reality navigation is implemented, then surgical precision and alignment accuracy are improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into a single augmented reality navigation system, including real-time image capture, image processing, virtual guide overlay, trajectory visualization, and alignment guidance. By consolidating these functions into one multi-functional AR system rather than separate devices, the patent manages device complexity while achieving high surgical precision
Solution Approach 2:
The patent creates virtual copies of the surgical anatomy and surgical guides within the augmented reality environment. These virtual representations are overlaid onto the actual anatomy, allowing the surgeon to interact with and align virtual guides that replicate the physical surgical plan, thereby achieving precision without requiring complex physical guidance structures
Data Source
AI summary
Surgical systems and methods are provided that utilize augmented reality navigation and visualization techniques for transferring aspects of a preoperative surgical plan to an actual surgical site. The surgical systems and methods may be utilized to achieve accurate alignment of a surgical positioning object, such as a guide pin for guiding surgical reaming procedures, between the preoperative surgical plan and the intraoperative anatomy associated with the actual surgical site. Augmented reality may be utilized to achieve visualization of both an entry point and a drilling trajectory of the surgical positioning object in a manner that avoids occluding the intraoperative anatomy during the procedure.