3D Elongate Device References for Image-Guided Navigation
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Solution Overview
Problem
Existing image-guided procedures face challenges in effectively navigating elongate devices due to inadequate visualization of degrees of freedom and difficulty in aligning with action point markers, leading to inefficient navigation.
Innovation Solution
A system that determines the pose of an elongate device or instrument within a workspace, generates a reference pose, and displays it in three dimensions, allowing for effective navigation to planned or saved poses and points of interest.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional two-dimensional images are used for navigation, then the system is simple to operate, but the visualization of degrees of freedom and action point markers is inadequate
Solution Approach 1:
The patent transitions from traditional two-dimensional image display to three-dimensional visualization of the elongate device and action point markers. This dimensional enhancement provides comprehensive visualization of all degrees of freedom (position and orientation) while maintaining system simplicity through software-based rendering rather than complex hardware additions.
2Measurement precision
If action point markers are displayed with inadequate dimensions, then the display system remains simple, but the operator cannot effectively navigate to the markers
Solution Approach 1:
The patent employs color coding to differentiate various components (elongate device, action point markers, anatomical structures) in the three-dimensional visualization. This visual enhancement improves marker distinguishability and navigation precision without adding physical complexity to the display system.
3Loss of information
If external imaging devices are used to capture anatomy, then the imaging system is straightforward, but the images do not capture all degrees of freedom of the elongate device
Solution Approach 1:
The patent merges traditional external imaging data with three-dimensional computational models of the elongate device. By integrating device pose information (position and orientation) with anatomical images, the system provides complete degrees of freedom visualization without requiring additional physical imaging devices.
Data Source
AI summary
Techniques for providing an elongate device reference include a system having an elongate device, a display system, one or more processors, and memory storing instructions. When the one or more processors execute the instructions, the one or more processors determine a pose, within a workspace, of at least one of a distal portion of the elongate device or an instrument extendable from the distal portion of the elongate device; load a reference pose corresponding to at least one of a previous pose of the distal portion of the elongate device or a previous pose of the instrument; generate an elongate device reference corresponding to the reference pose; generate an image of the workspace from a perspective of the elongate device; and display, on the display system and on the image of the workspace, the elongate device reference at the reference pose and the distal portion of the elongate device.