Aligning Interventional Device Movement with User Control Direction
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Solution Overview
Problem
During interventional procedures, users face challenges in aligning the movement of interventional devices in images with control commands entered through a control console, leading to difficulties in hand-eye coordination and increased procedure time.
Innovation Solution
A system that includes a display, a control console with an input device, and at least one processor. The processor receives current images of the interventional device and control inputs, estimates the movement direction of the device, and adjusts the image orientation or input device orientation to align the movement direction with the control direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the control console is positioned away from the subject for radiation safety, then radiation exposure to the user is reduced, but hand-eye coordination deteriorates due to misalignment between control direction and device movement direction
Solution Approach 1:
The system continuously monitors the actual movement direction of the interventional device through imaging systems and compares it with the control direction input by the user. This feedback loop enables real-time detection of misalignment between control inputs and device movement, allowing the system to provide corrective information to the user and maintain accurate hand-eye coordination even when the control console is remotely positioned for radiation safety.
Solution Approach 2:
The control system acts as an intermediary between the user's control inputs and the actual device movement. It receives control directions from the user, predicts the expected device movement, compares it with actual movement feedback, and provides alignment information or corrective feedback. This intermediary function resolves the coordination problem created by remote positioning without requiring the user to be physically close to the patient.
2Adaptability or versatility
If the control direction entered at the control console does not match the movement direction of the interventional device in the displayed image, then the system maintains operational flexibility, but steering precision deteriorates and procedure time increases
Solution Approach 1:
The system dynamically adjusts the relationship between control directions and device movement directions based on real-time conditions. Rather than maintaining a fixed mapping, the control system continuously adapts the coordination between user inputs and device responses by monitoring actual device movement and adjusting alignment parameters. This dynamic adaptation maintains steering precision while preserving operational flexibility to handle various anatomical configurations and procedural requirements.
Data Source
AI summary
A system and method are provided for aligning movement of an interventional device in an image and control commands entered by a user to visualize progress of the interventional device guided by a robot in an anatomical structure. The method incudes receiving a current image of the interventional device in a current position; receiving control input from an input device on a control console for controlling movement of the interventional device; determining a control direction of the input device; estimating a movement direction of the interventional device in the current image based on the control input; estimating a mismatch between the movement direction and the control direction; and adjusting an orientation of the current image relative to the display or an orientation of the input device relative to the control console to align the movement direction of the interventional device and the control direction of the input device of the control console.