Arthroscopic Surgery Simulator with Haptic Feedback
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Solution Overview
Problem
Current simulation systems in surgery training, particularly for arthroscopic surgeries, lack realism and practicality, relying on static mannequins and not effectively replicating the complexity and realism needed for effective training of surgeons.
Innovation Solution
A simulation system that combines 1:1 scale plastic anatomical models with virtual reality and haptic devices to simulate arthroscopic procedures, allowing for realistic handling and feedback, and includes a central unit for data processing and image representation, enabling complex exercises and self-evaluation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static mannequins are used for surgery simulation, then the system is simple and easy to manufacture, but the realism and practicality for training surgeons is insufficient
Solution Approach 1:
The patent creates a virtual copy of the surgical environment including 3D models of anatomical structures, surgical instruments, and surgical procedures. This virtual replica allows surgeons to practice in a realistic setting without requiring actual patients or complex physical mannequins, thereby improving training effectiveness while maintaining system simplicity
Solution Approach 2:
The patent replaces physical mechanical simulation systems (static mannequins) with a computer-based virtual reality system. The mechanical interaction is substituted by haptic feedback devices that simulate tactile sensations through software-controlled forces, reducing physical complexity while enhancing training realism
2Reliability
If cadavers are used for training, then realistic anatomical practice is achieved, but ethical issues and high costs arise
Solution Approach 1:
The patent creates accurate virtual copies of human anatomy with realistic anatomical structures, tissues, and pathologies. These digital replicas provide the same anatomical realism as cadavers without the ethical concerns, allowing unlimited practice on identical anatomical models
Solution Approach 2:
The patent replaces expensive and ethically problematic cadaveric materials with affordable, reusable virtual reality software. The virtual anatomical models can be used indefinitely without degradation, eliminating the need for continuous acquisition of cadavers and associated ethical and financial burdens
3Manufacturing precision
If detailed anatomical models are created, then anatomical accuracy is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent replaces physical manufacturing of detailed anatomical models with digital 3D modeling and rendering. The anatomical structures are created using computer-aided design software based on medical imaging data, achieving high anatomical accuracy without the complexity of physical model fabrication
Solution Approach 2:
The patent uses digital parameters and algorithms to generate anatomical models, allowing easy adjustment of anatomical variations, pathologies, and surgical scenarios through software parameters rather than physical re-manufacturing. This enables high anatomical accuracy with minimal production effort
Data Source
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AI summary
The invention relates to a simulator for training in arthroscopic surgery on a joint of a simulated patient, comprising: a data processing unit (1); viewing means (2) for viewing the simulation exercise; a working platform (12); a human anatomy model (9) with arthroscopic portals (3) through which the user inserts the simulated arthroscopic instrument (10); two haptic devices (5a, 5b) arranged around the model (9) with a mobile member (6a, 6b), the end of which is provided with a guide (8a, 8b) for guiding the instrument that is inserted into the arthroscopic portals (3) during a simulated surgical procedure, each haptic device (5a, 5b) including means for synchronization with the control unit (1) and means for determining the position and orientation of the mobile members (6a, 6b); and a simulated arthroscopic camera (7). The data processing unit (1) is configured to send simulated images, as would be seen in a real operation, from the arthroscopic camera (7) to the viewing means (2) in real time.