Dynamic Multipolar Lead Representation in Cardiac Programmer Interface
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Solution Overview
Problem
The complexity of selecting effective vectors for cardiac stimulation in implantable medical devices is increased by the numerous electrode configurations of multipolar leads, such as quadripolar leads, which require accurate representation of electrode spacing to facilitate efficient programming.
Innovation Solution
A system and method that allows for the depiction of multipolar intracardiac leads with accurate electrode spacing configurations in a user interface, enabling users to select and visualize the appropriate lead images based on the type of lead implanted, aiding in the selection of optimal stimulation vectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a generic lead image is displayed without accurate electrode spacing representation, then the user interface is simpler and faster to load, but the programmer cannot efficiently select appropriate stimulation vectors due to inaccurate electrode configuration information
Solution Approach 1:
The system dynamically selects and displays different lead images based on the specific lead type detected from device data. Instead of using a static generic image, the interface adapts to show the appropriate electrode configuration representation (e.g., quadripolar lead images with specific electrode spacing) matching the actual implanted lead, thereby enabling efficient vector selection without unnecessary complexity
Solution Approach 2:
The system creates and displays a graphical copy or representation of the actual lead's electrode configuration. By generating a visual replica that accurately depicts electrode spacing and arrangement based on detected lead characteristics, the system provides programmers with accurate spatial information needed for vector selection while maintaining a simplified interface structure
2Measurement precision
If multiple lead images with different electrode configurations are stored and displayed, then accurate electrode spacing representation is achieved, but the memory requirement and image retrieval time increase
Solution Approach 1:
The system changes the parameter of image selection based on detected lead characteristics. Instead of storing and displaying all possible lead configurations, the system adjusts its behavior by selecting the appropriate pre-stored lead image that matches the detected lead type, thereby achieving accurate electrode spacing representation with a more manageable image library
Solution Approach 2:
The system uses feedback from detected lead characteristics to determine which lead image to display. By continuously monitoring or detecting lead type information and using this feedback to select the corresponding accurate lead image, the system maintains high measurement precision for electrode spacing while avoiding the need to store and manage an exhaustive list of all possible lead configurations
Data Source
AI summary
An external programming system for programming an implantable medical device includes a user display and a memory storing multiple intracardiac lead images. The intracardiac lead images correspond to lead types and includes electrodes spaced according to the spacing of electrodes of a particular lead type. The programmer selects one of the lead images for display based on an indication of which type of lead has been implanted in a patient. The selected image is displayed to a user as part of a graphical user interface for programming cardiac pacing therapy for the patient.