Mixed Reality Surgical Jig Alignment via 3D Spatial Mapping
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Solution Overview
Problem
Traditional surgical jigs for implanting prostheses are expensive, require significant storage, and can be inaccurate due to manual alignment, while virtual or holographic jigs face challenges in precise alignment with physical jigs during surgery.
Innovation Solution
A mixed reality system that combines a headset with 3D spatial mapping capabilities to generate and project virtual jigs and instruments, allowing surgeons to visualize and manipulate these tools in real-time for precise alignment and cutting guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional metal jigs are used for surgical cutting guidance, then manufacturing precision and reliability are improved, but device cost and storage requirements increase significantly
Solution Approach 1:
The patent creates virtual copies (holographic representations) of physical surgical jigs that can be displayed and manipulated in 3D space. These virtual jigs replicate the functional characteristics of physical jigs without requiring physical storage of multiple sizes. The system captures images of physical jigs and generates corresponding holographic models that can be viewed and used for surgical planning and guidance.
Solution Approach 2:
The patent replaces the mechanical physical jig system with a computational holographic system. Instead of physically manufacturing and storing multiple metal jigs of different sizes, the system uses computer-generated holograms that can be instantly adjusted and displayed. This substitution eliminates the need for physical inventory while maintaining the guidance functionality through visual overlay and interactive manipulation.
2Manufacturing precision
If traditional metal jigs are used for surgical procedures, then manufacturing precision is improved, but device cost and sterilization requirements increase
Solution Approach 1:
The patent employs disposable plastic physical jigs that can be manufactured at low cost and discarded after single use, eliminating sterilization requirements. Additionally, the holographic virtual jigs are software-based and can be reused indefinitely without degradation, providing a cost-effective alternative to expensive metal jigs while maintaining surgical guidance accuracy.
Solution Approach 2:
The system creates virtual copies of surgical jigs through holographic technology, eliminating the need for expensive physical metal jigs. These digital models can be generated from images of physical jigs or designed computationally, providing the same guidance functionality without the associated manufacturing and sterilization costs.
3Quantity of substance
If virtual jigs are used for surgical guidance, then device cost and storage requirements are reduced, but alignment precision with physical anatomy decreases
Solution Approach 1:
The patent merges the virtual holographic jig with the physical surgical field by overlaying the hologram directly onto the patient's anatomy during surgery. The system combines computer-generated guidance information with real-time visual feedback from cameras and sensors, creating an integrated augmented reality interface that maintains alignment precision while eliminating storage requirements.
Solution Approach 2:
The system incorporates feedback mechanisms where cameras capture real-time images of the surgical site and the physical jig or bone, compare them with the virtual holographic model, and adjust the alignment accordingly. This closed-loop feedback ensures that the virtual jig maintains precise alignment with the physical anatomy despite the lack of physical contact.
4Ease of operation
If physical jigs are used during surgery, then ease of operation is improved, but surgeon visibility and flexibility are reduced
Solution Approach 1:
The patent replaces physical metal jigs that block the surgeon's view with holographic virtual jigs that are visible as light projections. These virtual guides can be viewed through transparent displays or head-mounted equipment, allowing the surgeon to see both the surgical site and the guidance information simultaneously without physical obstructions.
Solution Approach 2:
The system uses transparent or semi-transparent display media to present the holographic jig information, allowing light to pass through while displaying guidance information. This enables the surgeon to see through the display to the surgical site while simultaneously viewing the virtual guidance overlays, maintaining visibility while providing ease of operation.
Data Source
AI summary
A system and method for determining a location for a surgical jig in a surgical procedure includes providing a mixed reality headset, a 3D spatial mapping camera, and a computer system configured to transfer data to and from the mixed reality headset and the 3D spatial mapping camera. The system and method also include attaching a jig to a bone, mapping the bone and jig using the 3D spatial mapping camera, and then identifying a location for the surgical procedure using the computer system. Then the system and method use the mixed reality headset to provide a visualization of the location for the surgical procedure.