PVC Holding Plate with Reflective Markers for Surgical Navigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current medical navigation systems face challenges in achieving precise intraoperative patient image space registration, which is critical for the success of surgical procedures. The precision of registration directly affects the final treatment outcome, but existing technologies struggle to accurately distinguish the positioning and tracking member from human tissue structures in medical images.
Innovation Solution
A positioning and tracking member is introduced, comprising a holding plate with light-reflective markers arranged in an array. The holding plate is made of polyvinyl chloride (PVC) to ensure distinct eigenvalues in medical images, allowing for clear differentiation from human tissue. The method involves acquiring a three-dimensional medical model, performing image segmentation, and determining the target connected region corresponding to the marker based on geometrical information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional positioning members are used in medical navigation, then the system can perform basic positioning functions, but the precision of distinguishing the positioning member from human tissue structures in medical images deteriorates
Solution Approach 1:
The patent applies the color changes principle by using materials with distinct eigenvalues (such as specific plastics or metals) that appear as different intensities or patterns in medical images like CT or MRI. This allows the positioning and tracking member to be clearly differentiated from human tissue structures based on their material properties, thereby improving measurement precision without requiring complex structural modifications
Solution Approach 2:
The patent employs parameter changes by modifying the material composition and physical properties of the positioning member to ensure it has distinct eigenvalues detectable by medical imaging systems. By changing parameters such as density, atomic number, or magnetic properties, the member becomes clearly distinguishable from biological tissues, enhancing image recognition precision while maintaining simple device structure
2Measurement precision
If the holding plate material is changed to achieve distinct eigenvalues, then the differentiation from human tissue in medical images is improved, but the biocompatibility and safety may deteriorate
Solution Approach 1:
The patent applies composite materials by combining biocompatible base materials (such as medical-grade plastics or titanium) with radiopaque or magnetically detectable components. This allows the holding plate to maintain excellent biocompatibility and safety for patient contact while incorporating materials that provide distinct eigenvalues for clear differentiation from human tissue in medical images
Solution Approach 2:
The patent uses parameter changes by selecting materials with specific safety-certified properties (biocompatibility, non-toxicity) while simultaneously achieving the desired eigenvalue characteristics. By carefully controlling material parameters such as elemental composition and physical state, the system achieves both safety requirements and image differentiation capabilities
3Measurement precision
If multiple markers are arranged densely on the holding plate, then the positioning accuracy is improved, but the spacing between markers becomes too small for accurate detection
Solution Approach 1:
The patent applies another dimension by transitioning from two-dimensional marker arrangement to three-dimensional spatial configuration. Markers are positioned at different heights or depths relative to the holding plate surface, creating vertical dimensionality. This allows multiple markers to be densely packed horizontally while maintaining sufficient detection spacing through vertical separation, thereby improving positioning accuracy without compromising detectability
Solution Approach 2:
The patent employs segmentation by dividing the marker array into multiple groups or layers with different functions. Some markers serve as primary positioning references while others provide redundancy or alternative detection methods. This segmented approach allows optimized spacing for each marker group, achieving high overall positioning accuracy while maintaining practical detection distances
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
This solution enhances the precision of image recognition and registration, improving the accuracy of surgical navigation by rapidly and accurately identifying the positioning and tracking member in medical images, thereby reducing the risk of errors during surgical procedures.
Implementation Method 1
The first surface is provided with a plurality of grooves, wherein the plurality of grooves are in one-to-one correspondence with the plurality of markers, and the markers are light-reflective spheres
Data Source
AI summary
A positioning and tracking member is provided. The positioning and tracking member includes: a holding plate and a plurality of markers, wherein the holding plate comprises a first surface and a second surface that are opposite to each other, and the plurality of markers are disposed on the first surface, the second surface being configured to be adhered to a surface of a target object. A method for recognizing a maker, a storage medium, and an electronic device are also provided.