3D Physical Model Navigation for Medical Devices Without X-Ray
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Medical procedures, such as sinuplasty, face challenges in accurately navigating medical devices within complex patient organs due to limited visualization, often requiring hazardous X-ray radiation for verification.
Innovation Solution
A system utilizing a dummy device and a 3D physical model, where a processor receives CT images to create a virtual 3D model of the patient's organ, and a robot moves a dummy tool in a physical 3D model to mimic the medical device's position, allowing continuous visualization without X-ray radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If X-ray radiation is used for verification of medical device position, then navigation accuracy is improved, but patient exposure to harmful radiation increases
Solution Approach 1:
The patent creates a physical 3D model copy of the patient's organ anatomy that can be externally manipulated and visualized. This physical model serves as a safe alternative to X-ray verification, allowing physicians to track and verify medical device positions without exposing patients to harmful radiation. The model is registered with the actual organ geometry to maintain navigation accuracy.
Solution Approach 2:
The physical 3D model acts as an intermediary between the medical device inside the patient's body and the physician's visualization needs. Instead of directly using X-rays to see device positions, the system uses the physical model as a mediator that represents internal anatomy externally, eliminating the need for harmful radiation while maintaining measurement precision.
2Productivity
If real-time visualization of medical device position is implemented, then procedure time is reduced, but system complexity increases
Solution Approach 1:
The patent performs preliminary actions by creating the physical 3D model of the organ anatomy before the medical procedure begins. This pre-prepared model eliminates the need for complex real-time imaging systems during the procedure, as the visualization framework is already in place. The model can be quickly updated with device positions using simple tracking methods, reducing procedure time without requiring overly complex real-time visualization infrastructure.
Data Source
Figure 1
Figure 2
AI summary
A method includes, receiving a first sequence of first positions of a medical device that moves in a body of a patient. The first positions of the medical device are visualized to a user, by automatically moving a dummy device, external to the body, in a second sequence of second positions that mimics the first sequence.