Customized Cut and Screw Guide for High Tibial Osteotomy
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Solution Overview
Problem
Current methods for detecting bone curve deformities in knee joints, such as Varus and Valgus deformities, rely on manual measurements from x-ray films and lack a software-based system for customizing surgical guides, leading to inefficiencies and inaccuracies in High Tibial Osteotomy operations.
Innovation Solution
A cutting measuring navigation system processes radiological images to automatically calculate bone angular deformities, generating customized 3D cut and screw guides for 3D printing, enabling precise corrections with minimal invasive techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual measurement methods are used on x-ray films, then the process is simple and requires minimal equipment, but the measurement precision and customization capability deteriorate
Solution Approach 1:
The patent replaces manual mechanical measurement methods with an automated computer-based navigation system that processes radiological images digitally. The system uses software algorithms to automatically detect bone curves, calculate angular deformities, and generate customized surgical guides, eliminating the need for manual measurements on physical x-ray films while significantly improving measurement precision.
Solution Approach 2:
The patent creates a digital copy of the patient's anatomy by processing radiological images through the navigation system. This digital model is then used to generate customized 3D surgical guides that accurately represent the patient's specific bone geometry and deformity characteristics, enabling precise pre-planning without requiring complex physical modeling.
2Adaptability or versatility
If customized guides are produced for each patient, then the adaptability and surgical precision improve, but the manufacturing time and complexity increase
Solution Approach 1:
The patent performs all measurements, calculations, and guide design work before the surgical procedure. The navigation system automatically processes radiological images to detect bone curves and calculate angular deformities, then generates customized 3D surgical guides in advance. This pre-planning approach eliminates time-consuming intraoperative measurements and adjustments, reducing overall surgical time while maintaining high customization levels.
Solution Approach 2:
The patent automatically adjusts multiple parameters including bone curve detection algorithms, angular deformity calculations, and guide geometry optimization. The system processes various radiological image formats and adapts the guide design based on specific patient anatomy, allowing rapid customization without manual intervention for each parameter.
3Productivity
If automated software-based measurement systems are implemented, then measurement precision and customization improve, but the device complexity and initial investment increase
Solution Approach 1:
The patent designs a navigation system that performs multiple functions: processing various radiological image formats (x-ray, CT, MRI), automatically detecting bone curves, calculating angular deformities, generating customized 3D surgical guides, and producing patient-specific instrumentation. This multi-functional approach consolidates what would otherwise require separate devices and processes, improving surgical efficiency while managing overall system complexity.
Data Source
AI summary
Software based cutting (osteotomy) measuring navigation system processing radiological screen displays used for detecting bone curve for High Tibial Osteotomy (HTO) in Varus and Valgus deformities occurring in knee joint and customised angle adjustable cut and screw guide (7) obtained by means of modelling the values measured by the navigation and transmission thereof to three-dimensioned printer for use in orthopaedics surgery in medicine sector.