Catheter Therapy Annotations for 3D Position and Lesion Feedback
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Solution Overview
Problem
Accurately positioning a medical device within an anatomical structure and delivering therapy to desired locations is challenging due to uncertainties regarding device proximity and orientation, leading to potential gaps in therapy delivery and reduced treatment effectiveness.
Innovation Solution
The use of three-dimensional annotations displayed on a graphical user interface, combined with three-dimensional surface representations, to provide real-time feedback on the position, orientation, and therapy delivery status of a medical device, such as a catheter, based on signals from sensors distributed about the tip section, enhancing precise positioning and therapy delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional tracking and mapping systems are used to monitor device position, then basic localization is achieved, but uncertainty regarding device proximity and orientation remains, leading to gaps in therapy delivery
Solution Approach 1:
The system displays visual feedback annotations on a three-dimensional model showing the device position, orientation, and lesion formation status in real-time. This feedback loop allows the operator to see whether discrete therapy regions are connecting, enabling immediate adjustment of device positioning or therapy parameters to ensure complete lesion formation without gaps.
Solution Approach 2:
A three-dimensional visual model serves as an intermediary representation of the anatomical structure and device position. This visual intermediary translates complex sensor data and device positioning information into an intuitive display that shows proximity, orientation, and therapy delivery status, reducing uncertainty for the operator.
2Ease of operation
If point-by-point therapy delivery is performed without visual feedback, then the procedure is simpler, but gaps between discrete therapy regions may occur, reducing treatment effectiveness
Solution Approach 1:
Visual annotations on the three-dimensional model provide real-time feedback on lesion formation status, showing which discrete therapy regions have been treated and whether they are connecting to form a complete barrier. This feedback maintains procedure simplicity while ensuring accurate lesion formation by allowing operators to see progress and make immediate corrections.
3Reliability
If follow-up procedures are performed to verify complete lesion formation, then treatment completeness can be confirmed, but treatment time and patient exposure to procedures increase
Solution Approach 1:
The system performs preliminary verification of complete lesion formation during the initial therapy delivery procedure itself, using visual annotations on the three-dimensional model to show whether discrete regions are connecting. This preliminary action eliminates or reduces the need for separate follow-up procedures, confirming treatment completeness while minimizing additional time and patient exposure.
Data Source
AI summary
Devices, systems, and methods for generating therapy annotations for display on a graphical user interface are disclosed herein. In some embodiments, therapy annotations can correspond to a location of a tip section of a catheter relative to an anatomical structure of a patient when therapy is delivered to the anatomical structure. One or more properties of the therapy annotations can be based at least in part on signals received from sensors distributed about the tip section of the catheter and/or on other characteristics of therapy delivery. The therapy annotations can be displayed alone or in combination with a three-dimensional surface representation of the anatomical structure, a representation of the catheter, and/or other visual indicia, such as a therapy contour, a distance from a nearest therapy site and/or the most recent therapy site, and/or a representation of gaps between two therapy sites.