Endoscopic Viewing Indicator with Dynamic Virtual Representation
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Solution Overview
Problem
Variable direction of view endoscopes face challenges in estimating the viewing direction during use due to the hidden tip, making it difficult for clinicians to integrate anatomical knowledge with the viewing process, as existing solutions do not provide a clear correlation between the live image, its orientation, and the endoscope configuration.
Innovation Solution
A dynamic representation of the endoscopic viewing direction is achieved through a live image icon and a virtual world with real-time numerical indications of the global position relative to a defined equator and zero-meridian, utilizing onboard motors for variable viewing and incorporating graphical user interfaces and navigation grids to simulate the endoscopic configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If variable direction of view endoscopes are used to provide greater viewing mobility, then the viewing flexibility is improved, but the ability to estimate viewing direction during use deteriorates because the tip is hidden
Solution Approach 1:
The patent creates a virtual copy of the endoscope's viewing direction through graphical icons and indicators displayed on a monitor. This virtual representation copies the spatial orientation and angular position of the endoscopic line of sight, allowing the operator to see where the scope is pointing without the tip being visible. The graphical depiction includes a view vector direction locator that replicates the viewing geometry in a visible format.
Solution Approach 2:
The patent introduces an intermediary graphical user interface between the hidden endoscope tip and the operator's perception. This intermediary system processes the endoscope's angular position data and translates it into visual indicators (icons, arrows, numerical values) that mediate the operator's understanding of viewing direction. The intermediary converts invisible spatial information into visible graphical representations.
2Loss of information
If indicator knobs, dials, or markers are added to show viewing direction, then the viewing direction information is improved, but the device complexity increases and clear correlation with live image orientation remains difficult
Solution Approach 1:
The patent merges the viewing direction indicators with the live endoscopic image display by overlaying graphical icons and numerical data directly on or near the video feed. This combination integrates multiple information streams (live image, viewing direction, angular position) into a unified visual interface, eliminating the need for separate physical indicators while maintaining clear correlation between the image orientation and direction markers.
Solution Approach 2:
The patent transitions from physical spatial indicators (knobs, dials on the endoscope body) to a two-dimensional graphical representation on a monitor. By projecting three-dimensional spatial orientation information onto a two-dimensional display plane, the system provides comprehensive viewing direction data without adding physical complexity to the endoscope structure.
3Loss of information
If computer graphical depiction of variable direction endoscope is provided, then the dynamic relationship between shaft and line of sight is improved, but clear correlation between live image orientation and endoscope configuration remains insufficient
Solution Approach 1:
The patent implements a feedback system where the graphical depiction continuously updates based on real-time endoscope configuration data. The view vector direction locator and numerical indicators provide immediate feedback about the current viewing direction, allowing the operator to correlate the live image orientation with the endoscope's angular position. This closed-loop information flow maintains accurate correlation between visual representation and physical configuration.
Data Source
AI summary
A graphical model provides a dynamic representation of the endoscopic view and viewing direction relative to a virtual world. The model can be oriented and adjusted to approximate a real world situation. Angular image navigation coordinates are also provided.