Catheter Localization Coordinate Recalibration Across Mixed Sensing Modes
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Solution Overview
Problem
Existing medical diagnostic and treatment systems face challenges in accurately localizing catheters within the body due to limitations in current localization methods, such as impedance-based and magnetic-based systems, which are susceptible to changes in body conditions and require magnetic elements that many catheters lack.
Innovation Solution
A method and system that combines multiple localization modes, including impedance-based, magnetic-based, and ultrasound-based localization, to establish and recalibrate a localization coordinate system, using a processor to process signals from functional elements within and proximal to the body, allowing for improved localization accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If impedance-based localization is used, then localization can be performed without magnetic elements, but accuracy deteriorates due to susceptibility to changes in body conditions
Solution Approach 1:
The patent combines multiple localization modes (impedance-based, magnetic-based, and ultrasound-based) into a unified localization system. The processor integrates signals from different functional elements using different localization modes to establish and recalibrate a localization coordinate system, thereby compensating for the limitations of individual methods and improving overall localization accuracy.
2Measurement precision
If magnetic-based localization is used, then localization accuracy is improved, but device complexity increases due to requirement of magnetic elements
Solution Approach 1:
The patent creates a universal localization system that can operate with multiple types of catheters regardless of whether they contain magnetic elements. The system uses a processor to selectively apply different localization modes based on the available functional elements, making the localization capability applicable to a broader range of catheter designs without requiring all catheters to have magnetic elements.
3Measurement precision
If multiple localization modes are combined, then localization accuracy is improved, but system complexity increases
Solution Approach 1:
The patent introduces a processor as an intermediary that manages the complexity of combining multiple localization modes. The processor receives signals from different functional elements, processes them using appropriate localization algorithms, and integrates the results into a unified localization coordinate system. This central processing approach simplifies the overall system architecture by consolidating the complexity in a dedicated processing unit rather than distributing it across multiple independent subsystems.
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
Enhances the accuracy and reliability of catheter localization within the body by compensating for environmental changes and overcoming limitations of single localization methods, thereby improving the safety and effectiveness of diagnostic and treatment procedures.
Implementation Method 1
impedance-based localization mode
Implementation Method 2
magnetic-based localization mode
Implementation Method 3
ultrasound-based localization mode
Data Source
AI summary
Provided herein are systems and methods for performing localization within a patient. A method of localization within a body comprises providing at least one processor coupled to at least one data storage device, establishing and calibrating a localization coordinate system within a body by executing a first localization mode by the at least one processor, recalibrating the localization coordinate system by executing a second localization mode by the at least one processor, and localizing a device within the localization coordinate system using the first localization mode and the second localization mode, by the at least one processor. The first localization mode can be an impedance-based localization mode and the second localization mode can be magnetic-based localization mode, or vice versa.