Electroporation System with Real-Time Impedance Monitoring
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Solution Overview
Problem
Conventional electroporation medical devices lack real-time monitoring and adjustment capabilities, leading to unpredictable treatment outcomes due to variations in tissue properties and responses during procedures.
Innovation Solution
A system with at least two electrodes and a pulse generator that applies pre-treatment and intra-treatment test signals to monitor impedance changes, allowing for real-time progress tracking and adjustment of electroporation pulses to ensure effective tissue ablation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If conventional electroporation devices use pre-determined pulse parameter protocols, then the treatment procedure can be automated and delivered systematically, but the treatment outcomes become unpredictable due to variations in tissue properties and responses
Solution Approach 1:
The system continuously monitors tissue impedance during electroporation treatment and uses this real-time feedback to dynamically adjust pulse parameters. The control system compares measured impedance values against expected values and modifies subsequent pulse delivery to maintain optimal treatment conditions, thereby ensuring predictable outcomes while preserving automation.
Solution Approach 2:
The treatment system transitions from static, pre-determined pulse parameters to dynamic parameter adjustment based on real-time tissue response. The pulse generator continuously adapts voltage, current, or pulse duration based on measured impedance changes, allowing the treatment protocol to evolve during the procedure and maintain effectiveness despite tissue property variations.
2Ease of operation
If electroporation treatment uses fixed pulse parameters selected from pre-existing ablation data, then the treatment planning process is simplified, but the treatment may not achieve clinically sufficient electroporation due to unpredictable patient-specific tissue responses
Solution Approach 1:
The system maintains simple treatment planning through pre-programmed protocols while ensuring precise tissue ablation by incorporating real-time impedance monitoring. The feedback mechanism detects when tissue properties deviate from expectations and automatically adjusts pulse parameters to achieve the desired ablation precision, bridging the gap between operational simplicity and treatment accuracy.
Solution Approach 2:
The treatment system performs self-adjustment based on real-time tissue response without requiring complex manual re-planning. The control system autonomously modifies pulse parameters in response to impedance measurements, allowing the device to self-correct for patient-specific variations while maintaining the simplicity of the initial treatment plan.
3Device complexity
If no real-time monitoring is implemented during electroporation treatment, then the device complexity is reduced, but there is no assurance of clinically sufficient electroporation progress
Solution Approach 1:
The system implements real-time impedance monitoring that provides continuous feedback on treatment progress without requiring complex imaging or additional sensors. By measuring electrical impedance changes during pulse delivery, the system reliably tracks electroporation progression and ensures clinically sufficient treatment while maintaining relatively simple device architecture.
Solution Approach 2:
The system uses tissue impedance as an intermediary parameter to indirectly monitor electroporation progress. Rather than directly measuring complex biological changes, the system employs impedance measurements as a surrogate marker that reliably indicates treatment effectiveness, simplifying the monitoring mechanism while ensuring treatment reliability.
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
This approach enables improved treatment delivery and increased likelihood of successful outcomes by providing real-time feedback on tissue electroporation progress and endpoint determination, ensuring accurate and tailored treatment protocols for each patient.
Implementation Method 1
a pulse generator configured to generate electroporation pulses for ablation of tissue in a target region
Implementation Method 2
A treatment control module determines impedance values from the PT test signal and IT test signals and determines a progress of electroporation in real-time based on the determined impedance values
Data Source
AI summary
A medical system for ablating a tissue site with real-time monitoring during an electroporation treatment procedure. A pulse generator generates a pre-treatment (PT) test signal prior to the treatment procedure and intra-treatment (IT) test signals during the treatment procedure. A treatment control module determines impedance values from the PT test signal and IT test signals and determines a progress of electroporation and an end point of treatment in real-time based on the determined impedance values while the treatment progresses.