Optically Detectable Markers with Multi-Face Cartridge Protection
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Solution Overview
Problem
Existing markers for surgical tracking are easily soiled, difficult to set up, and have limited viewing angles, leading to occlusion and usability issues.
Innovation Solution
The development of optically detectable markers comprising a mask unit with at least three faces and a cartridge insertable through these faces, secured by support units, which are optically detectable and can be secured using magnets, clips, or adhesives, with a light source to enhance visibility and alignment features for improved tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing markers are used for surgical tracking, then tracking functionality is provided, but the markers are easily soiled and have limited viewing angles
Solution Approach 1:
The marker is divided into separate components: a mask unit with multiple faces and a cartridge containing the optically detectable surface. This segmentation allows the cartridge to be inserted into the mask unit, providing protection while maintaining tracking functionality across multiple viewing angles through the different faces of the mask unit.
Solution Approach 2:
The cartridge is inserted into the interior volume of the mask unit, with the optically detectable surface exposed through openings in the mask faces. This nested configuration protects the detectable surface from soiling while allowing optical detection through the mask structure from multiple angles.
2Reliability
If existing markers are used for surgical tracking, then tracking is enabled, but the markers are difficult to set up
Solution Approach 1:
By separating the marker into a mask unit and a cartridge, the setup process is simplified. The cartridge can be pre-prepared with the optically detectable surface and then easily inserted into the mask unit during setup, reducing the complexity of the overall setup procedure while maintaining full tracking capability.
Solution Approach 2:
The cartridge can be prepared in advance with the optically detectable surface before insertion into the mask unit. This preliminary preparation simplifies the final setup process, as the cartridge is ready to be inserted and secured without requiring complex assembly during the setup phase.
3Adaptability or versatility
If a mask unit with multiple faces and openings is used, then viewing angles are enhanced, but device complexity increases
Solution Approach 1:
The complexity is managed by segmenting the marker into a mask unit with multiple faces and a separate cartridge. Each face of the mask unit can have openings configured to provide specific viewing angles, while the cartridge contains the optically detectable surface. This segmentation allows for optimized viewing angles without requiring the entire marker structure to be overly complex.
Solution Approach 2:
The mask unit with multiple faces serves multiple functions: it provides structural support, defines multiple viewing angles through different faces, and contains openings that expose the optically detectable surface. The cartridge provides the optically detectable surface while being protectable from multiple directions. This multi-functionality reduces overall device complexity by combining several functions into unified components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides markers with enhanced viewing angles, ease of assembly, and improved tracking accuracy by ensuring the cartridge is securely positioned and visible from multiple angles, reducing occlusion and simplifying setup.
Implementation Method 1
a cartridge insertable into the interior volume of the mask unit through the aperture, a surface of the cartridge exposed through each of the at least one openings, the cartridge being optically detectable relative to the mask unit
Implementation Method 2
Securing devices, including any of a support unit, a clip, a magnet, an adhesive, etc., can secure a cartridge in a mask unit
Data Source
AI summary
Provided are optically detectable markers for tracking, as well as related methods. A marker comprises a mask unit and a (removable) cartridge comprising an optically detectable surface exposed through at least three faces of the mask unit. Respective materials present a measurable contrast under optical detection conditions. An optical detectable surface can be detectable using IR and a contrasting surface is not. Faces can define openings to the cartridge. The cartridge can comprise a sheet of optically detectible material foldable to fit into the mask unit. A sheet can provide multiple connected cartridges. Securing devices including any of a support unit, a clip, a magnet, an adhesive, etc., can secure a cartridge in a mask unit. A marker, or maker kit, may comprise a plurality of mask units and cartridges connected via a marker body. Some of the mask units may be on different planes in such a marker.