Implantable Lead Extraction Guidance Using X-Ray Adhesion Analysis
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Solution Overview
Problem
Existing implantable device extraction procedures face challenges in deciding which techniques and tools to use, particularly when adhesion between the device and tissue is strong, and the path through the vasculature is tortuous, making simple pulling unsuitable.
Innovation Solution
A computer-implemented method that analyzes X-ray attenuation data to determine the amount of adhesion between the implantable device and tissue, providing guidance for the extraction procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the lead has been in place for more than a few months, then adhesion between the lead and contacting tissue becomes relatively stronger, but this makes simple pulling extraction technique unsuitable
Solution Approach 1:
The system performs preliminary analysis of attenuation data before the extraction procedure to determine the amount of adhesion between the lead and tissue. This advance assessment allows the medical professional to select the appropriate extraction technique and tools beforehand, avoiding the difficulty of strong adhesion during the actual extraction process.
Solution Approach 2:
The attenuation data analysis system acts as an intermediary between the implanted lead and the extraction process. By providing quantitative information about adhesion strength, it mediates the decision-making process for selecting extraction methods, bridging the gap between the implanted device state and the appropriate removal technique.
2Reliability
If various tools such as locking stylets or laser sheaths are used to facilitate extraction, then extraction capability is improved, but device complexity and procedure invasiveness increase
Solution Approach 1:
The system provides feedback in the form of attenuation data analysis results that indicate the amount of adhesion between the lead and tissue. This feedback allows the medical professional to select the appropriate level of tool complexity - using simple pulling techniques when adhesion is low and more complex tools like locking stylets or laser sheaths only when adhesion analysis indicates it is necessary.
Solution Approach 2:
The system changes the parameter of information availability by providing quantitative attenuation data about adhesion strength. This parameter change enables dynamic selection of extraction methods based on actual tissue-lead interaction, rather than using complex tools routinely for all cases.
3Measurement precision
If attenuation data analysis is performed to determine adhesion levels, then extraction guidance accuracy is improved, but measurement and detection complexity increases
Solution Approach 1:
The system replaces direct mechanical measurement of adhesion (which would require invasive procedures) with X-ray attenuation data analysis. By substituting the measurement approach from mechanical testing to radiological analysis, it achieves precise adhesion assessment without the complexity and invasiveness of direct measurement techniques.
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
Provides a reliable, non-invasive technique for guiding the extraction of implantable devices by determining adhesion levels, enabling informed decision-making on appropriate techniques and tools to use during the procedure.
Implementation Method 1
receiving attenuation data representing an implantable device in an anatomical region, the attenuation data defining X-ray attenuation within the anatomical region
Data Source
AI summary
A system (200) for providing guidance information for an implantable device extraction procedure, is provided. The system includes one or more processors (210) configured to: receive (S110) attenuation data (110) representing an implantable device (120) in an anatomical region, the attenuation data defining X-ray attenuation within the anatomical region; analyze (S120) the attenuation data (110) to determine an amount of adhesion (130) between the implantable device (120) and a tissue (140) contacting the implantable device; and output (S130) guidance information for the implantable device extraction procedure based on the amount of adhesion (130).