Four-Dimensional Surgical Training Model with Haptic Feedback
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Solution Overview
Problem
Current surgical training methods are limited by the need for hands-on experience, which can be risky for novice surgeons, and are hindered by the infrequent performance of certain procedures, especially in remote or underserved areas, with existing technologies providing only two-dimensional video editing and crude virtual reality simulations.
Innovation Solution
A system that captures three-dimensional data and haptic feedback from actual surgical procedures to create a four-dimensional model, allowing for interactive and realistic virtual surgical training, enabling novice surgeons to practice with simulated instruments and receive feedback on their inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional surgical training methods (studying static book material, dissecting cadavers, observing surgical procedures) are used, then surgeons can learn surgical procedures, but the learning curve is steep and normally fraught with failure requiring considerable hands-on experience and actual patient exposure
Solution Approach 1:
The patent creates virtual copies of surgical procedures by capturing real surgical footage and reconstructing them as interactive 3D models. These virtual replicas allow novice surgeons to practice procedures repeatedly in a risk-free environment, maintaining training effectiveness while eliminating the harm of actual patient exposure to novice errors
Solution Approach 2:
The system introduces an intermediary virtual reality layer between novice surgeons and actual patients. This intermediary allows trainees to gain hands-on experience through simulated procedures, reducing the steep learning curve and failure rates associated with direct patient exposure while still providing realistic surgical training
2Adaptability or versatility
If remote teleconferencing and two-dimensional video editing techniques are used for surgical training, then geographic limitations can be overcome and training materials can be created, but the training lacks interactivity and realism
Solution Approach 1:
The patent transitions from two-dimensional video editing to four-dimensional interactive modeling by capturing three-dimensional surgical data and creating time-based 3D models. This dimensional enhancement provides both remote accessibility and full interactivity, allowing trainees to navigate and manipulate surgical procedures from any location while maintaining realistic spatial relationships and tactile feedback
Solution Approach 2:
The system replaces passive two-dimensional video viewing with active four-dimensional interactive exploration. Trainees can manipulate virtual surgical instruments, pause and rewind procedures, and examine anatomical structures from multiple angles, transforming static video content into dynamic, interactive training experiences that combine remote accessibility with hands-on engagement
3Ease of operation
If three-dimensional models with simulated surgical instruments and haptic feedback are used, then virtual reality surgical training experience can be created, but the models use static or crudely dynamic representations with false or non-photorealistic color rendering
Solution Approach 1:
The patent transforms crude virtual reality models into photorealistic representations by capturing actual surgical footage and using it to texture and illuminate 3D anatomical models. This parameter change in visual fidelity maintains full interactivity and haptic feedback while replacing false color rendering with authentic surgical imagery, creating training materials that are both highly interactive and visually accurate
Data Source
AI summary
A system for generating surgical procedure training media draws upon the realistic data of an actual surgical procedure for realistic training without the risks. A 3D capturing component records three-dimensional model plus imaging data over time of a portion of a patient's body undergoing a surgical procedure. A spatial detection system detects an orientation of a surgical instrument relative to the patient's body during the surgical procedure. A modeling component creates a four-dimensional model (3D model+time) of the portion of the patient's body. Animation such as contingent events, trainee prompts, a virtual surgical instrument, etc., can be added to the model to expand upon the training potential. A user interface processes and edits training media for playback of the four-dimensional model including defining triggers responsive to a trainee simulated surgical inputs to pace sequencing of playback. An interactive player responds to pacing the playback of the editing training media or to a spatially detected simulated surgical instrument held by the student for direct tissue interaction.