Patient-Specific Surgical Guide Construction Using Non-Segmented 3D Images
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Solution Overview
Problem
Current methods for constructing patient-specific surgical guides are time-consuming and expensive due to the need for multiple data flows between radiologists, expert centers, and surgeons, involving manual segmentation of 3D medical images and reliance on unfamiliar image formats for surgeons, leading to high costs and inaccuracies.
Innovation Solution
A method that uses non-segmented 3D medical images to determine an anatomical referential for positioning an implant model, allowing surgeons to adjust its type, size, and orientation directly, reducing the need for expert processing and focusing on local segmentation of regions of interest for constructing patient-specific surgical guides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual segmentation of 3D medical images is performed by experts, then the accuracy of anatomical structure reconstruction is improved, but the construction time and cost increase significantly
Solution Approach 1:
The patent divides the 3D medical image into multiple slices and processes each slice independently through automated algorithms. This segmentation allows the system to handle complex images systematically, achieving accurate reconstruction without requiring manual expert intervention for the entire volume, thus reducing time while maintaining precision.
Solution Approach 2:
The patent replaces the manual mechanical segmentation process performed by experts with an automated computational system. The automated algorithm processes the 3D medical image data through computer-based image processing techniques, eliminating the need for time-consuming manual manipulation while maintaining or improving reconstruction accuracy.
2Loss of information
If multiple data flows between radiologist, expert center, and surgeon are implemented, then the completeness of information is improved, but the process complexity and cost increase
Solution Approach 1:
The patent merges the functions of the radiologist, expert center, and surgeon into a single integrated automated system. The system performs image acquisition, segmentation, reconstruction, and surgical guide planning in one unified process, eliminating the need for multiple separate data transfers and expert interventions, thus reducing complexity while preserving information completeness.
Solution Approach 2:
The patent enables the system to perform tasks that previously required external experts. The automated algorithm independently processes the medical images, reconstructs anatomical structures, and generates surgical guide plans without requiring manual intervention from radiologists or experts at external centers, making the system self-sufficient and reducing process complexity.
3Manufacturing precision
If expert centers perform segmentation and planning, then the quality of surgical guide construction is improved, but the cost and time consumption increase
Solution Approach 1:
The patent replaces the expert-dependent manual process with an automated computational system that performs segmentation and surgical guide planning algorithmically. This substitution maintains high construction quality through precise image processing while dramatically reducing both time consumption and cost by eliminating the need for specialized expert labor.
Solution Approach 2:
The patent changes the operational parameters from manual expert operations to automated algorithmic processing. By transforming the segmentation and planning tasks into computer-executable algorithms with defined parameters and rules, the system achieves consistent high-quality results while reducing the resource requirements associated with manual expert work.
Data Source
AI summary
The invention relates to a method for constructing a patient-specific surgical guide comprising at least one contact element comprising a contact surface intended to match an anatomical structure to be treated in view of implantation of an implant and at least one guiding element for guiding a surgical instrument to treat said anatomical structure, said method comprising:receiving a non-segmented 3D medical image of the anatomical structure of the patient;determining, in said non-segmented 3D medical image, anatomical references of the patient;based on said anatomical references, positioning an implant model in the non-segmented 3D medical image;adjusting at least one of: a type, a size, a position and an orientation of the implant model with respect to the anatomical structure in the non-segmented 3D medical image;recording planning data including said adjusted type, size, position and orientation of the implant model;using a patient-specific surgical guide adapted to carry out implantation of the implant, said patient-specific surgical guide being constructed using the planning data.