Ablation Control Interface With Segmented Modes And Real-Time Parameter Adjustment
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Solution Overview
Problem
Existing user interfaces and control systems for tissue ablation procedures are often either overly complex for skilled operators or rudimentary, lacking the necessary control over parameters for different ablation techniques without complicating the setup and control process.
Innovation Solution
An electrosurgical generator with a user interface that allows for adjustable therapy regimens, including pulse amplitude, pulse width, and pulse repetition rate, using a high voltage power source with capacitors and a stack selector, and a controller with executable triggering instructions for cardiac signal synchronization, enabling flexible and controlled ablation therapy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a highly technical user interface with multiple control parameters is provided, then control precision over ablation parameters is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The user interface is segmented into multiple selectable modes (e.g., RF ablation mode, IRE mode, blended mode), each presenting only the relevant control parameters for that specific technique. This allows skilled operators to access precise control over ablation parameters while avoiding the complexity of seeing all possible parameters simultaneously.
Solution Approach 2:
The interface dynamically adapts its complexity based on the selected ablation mode. When a user selects a specific ablation technique, the interface automatically displays and enables only the control parameters relevant to that technique, while hiding or disabling parameters not applicable to the current mode. This dynamic reconfiguration maintains precision control while reducing perceived complexity.
2Adaptability or versatility
If multiple ablation techniques with different parameters are supported, then adaptability is improved, but device complexity worsens
Solution Approach 1:
The control system is designed as a universal platform that can deliver multiple ablation techniques (RF ablation, IRE, and blended modes) through a single integrated system. The same hardware deliverable can be configured to provide different waveforms and parameter sets depending on the selected mode, eliminating the need for separate dedicated systems for each technique.
Solution Approach 2:
The system supports multiple ablation techniques by dynamically changing the electrical parameters of the deliverable waveform. By adjusting parameters such as pulse width, amplitude, duty cycle, and frequency according to the selected mode, the system achieves versatility across different ablation techniques while maintaining a unified control architecture.
3Ease of operation
If real-time parameter modification is enabled during therapy, then ease of operation is improved, but risk of procedure interruption worsens
Solution Approach 1:
The system performs preliminary validation and preparation when parameter modification requests are made during therapy. Before applying new parameters, the system checks for compatibility with the current ablation mode and prepares the delivery circuitry in advance, minimizing the actual interruption time and ensuring smooth transitions without compromising procedure 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
Facilitates precise and controlled ablation therapy by allowing users to modify therapy parameters in real-time without interrupting the procedure, improving the accuracy and efficiency of tissue ablation treatments.
Implementation Method 1
the high voltage power source comprises at least first and second capacitors configured for outputting therapy pulses
Implementation Method 2
heat-based thermal ablation adds heat to destroy tissue
Data Source
AI summary
Electrosurgical generators having improved functionality and a user interface. In an example, the user may modify therapy output parameters without interrupting therapy delivery within a therapy regimen by accessing a change tool on the user interface, with the change tool operable to change a stack selector configuration. In an example, the display shows both therapy amplitudes and encountered impedances for a plurality of therapy pulses in different portions of a display.