Fiber Optic Shape Tracking for Colonoscope Navigation
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Solution Overview
Problem
Current technologies fail to effectively measure and continuously track the dynamic shape and position of flexible medical devices like colonoscopes, leading to discomfort for patients, disorientation for physicians, and inefficiencies in colonoscopy procedures due to the lack of robust tracking and guidance systems.
Innovation Solution
A system employing optical fibers with sensors, such as fluorophores or quantum dots, embedded along the fiber to detect shape and position changes, integrated with a data collection and analysis component for real-time monitoring and visualization, enabling improved navigation and reduced discomfort during colonoscopy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If trial-and-error manipulations of the scope are used to navigate the flexible colon, then the scope can be inserted, but loops form causing patient discomfort and physician disorientation
Solution Approach 1:
The patent implements real-time feedback by embedding shape sensors along the colonoscope that continuously monitor the scope's configuration and transmit this information to a display system. This allows the physician to see the actual position and shape of the scope, enabling informed manipulation decisions rather than trial-and-error approaches, thereby preventing loop formation and improving navigation accuracy
Solution Approach 2:
The patent adds a visual dimension to the navigation process by displaying the three-dimensional shape and position of the flexible scope on a monitor. This external visual representation allows physicians to perceive the scope's configuration in space, transforming the tactile trial-and-error manipulation into a visually-guided precision operation that prevents harmful loop formation
2Loss of information
If no shape tracking system is used, then the device remains simple, but position and shape information is unavailable leading to near-blind navigation
Solution Approach 1:
The patent embeds shape sensors within the lumen of the flexible scope, nesting the measurement system inside the device being measured. This integration allows the sensors to follow the scope's configuration without adding external bulk, providing continuous shape and position information while maintaining the flexibility and insertability of the original device
Solution Approach 2:
The patent replaces the mechanical trial-and-error navigation approach with an optical/electronic measurement and display system. Shape sensors detect the scope's configuration through optical or electromagnetic principles, and a computer system processes this data to generate visual feedback, substituting tactile manipulation with intelligent, information-driven navigation
3Productivity
If loops form in the flexible endoscope, then the scope can be inserted, but pain and discomfort are inflicted on the patient
Solution Approach 1:
The patent enables preliminary action by providing real-time shape information that allows the physician to anticipate and prevent loop formation before it occurs. By visualizing the scope's configuration as it enters the colon, the physician can adjust manipulation techniques proactively, preventing the development of painful loops rather than reacting to them after formation
Solution Approach 2:
The real-time feedback from shape sensors allows continuous monitoring of the scope's configuration during insertion. When the sensors detect the beginning of a loop formation, the system alerts the physician through visual display, enabling immediate correction of manipulation technique to prevent painful loop development and ensure smooth procedure completion
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system allows for continuous tracking of the colonoscope's shape and position, reducing patient discomfort, improving navigation accuracy, and enhancing procedural efficiency by providing real-time visual guidance, thus facilitating earlier detection of IBD and cancer.
Implementation Method 1
the sensors comprise a plurality of fluorophores (e.g., dyes or quantum dots) having different spectral properties
Data Source
AI summary
The present invention provides systems, devices, and methods employing fiber optic shape and position tracking. The systems, devices, and methods permit measurement of and continuous tracking of the shape and position of objects whose shape dynamically changes with time. Applications include tracking and monitoring of endoscopes for diagnostic and surgical procedures.