Tripolar Electrosurgical Electrode Vapor Pocket Control
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Solution Overview
Problem
Existing electrosurgical devices face limitations in vapor pocket retention and control, leading to inefficient tissue vaporization due to high energy consumption and size constraints of electrodes, which restrict the amount of tissue that can be vaporized per unit time.
Innovation Solution
The use of a tripolar electrode configuration with selectively energized active electrodes and a suction port to manage and retain the vapor pocket, allowing concurrent tissue vaporization while maintaining energy consumption within surgical standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electrode size is increased to vaporize more tissue at once, then tissue vaporization capacity is improved, but energy consumption increases
Solution Approach 1:
The electrode system is divided into multiple segments (first electrode, second electrode, third electrode) that can be selectively activated. This segmentation allows the vaporization function to be distributed across multiple smaller electrode elements rather than requiring one large electrode, thereby maintaining high tissue vaporization capacity while reducing the energy consumption of any single electrode and the overall system.
2Productivity
If electrode size is increased to create a larger vapor pocket, then more tissue can be vaporized, but device complexity increases
Solution Approach 1:
The electrode system is divided into multiple segments (first electrode, second electrode, third electrode) that can be selectively activated. This segmentation allows the vaporization function to be distributed across multiple smaller electrode elements rather than requiring one large electrode, thereby maintaining high tissue vaporization capacity while reducing the energy consumption of any single electrode and the overall system.
Solution Approach 2:
The system dynamically activates different electrode combinations based on operational needs. The control circuitry enables selective energization of electrode pairs (first-second, second-third, or first-third electrodes), allowing the device to adapt its configuration dynamically. This dynamic activation strategy optimizes the vapor pocket size and position while managing system complexity through intelligent control rather than permanent structural complexity.
3Productivity
If multiple electrodes are concurrently energized to increase vaporization rate, then surgery time is reduced, but energy consumption exceeds surgical standards
Solution Approach 1:
The system dynamically activates different electrode combinations based on operational needs. The control circuitry enables selective energization of electrode pairs (first-second, second-third, or first-third electrodes), allowing the device to adapt its configuration dynamically. This dynamic activation strategy optimizes the vapor pocket size and position while managing system complexity through intelligent control rather than permanent structural complexity.
Solution Approach 2:
The system employs periodic or intermittent activation of multiple electrode pairs rather than continuous simultaneous energization. By cycling through different electrode combinations and utilizing the thermal retention properties of the vapor pocket, the system maintains high vaporization rates while allowing energy consumption to fluctuate within safe limits, preventing sustained power levels from exceeding surgical standards.
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 increases the vaporization rate by effectively enlarging the vaporizing surface area without exceeding surgical power limits, reducing surgery time and improving tissue alteration efficiency.
Implementation Method 1
The first electrode can be energized to establish a vapor pocket. Energy supplied to the first electrode can be reduced to a level that retains the vapor pocket and sufficient for tissue vaporization after the vapor pocket is established.
Implementation Method 2
These electrosurgical devices can apply energy (e.g., ultrasonic or electrical energy), which causes the fluid around the active electrode to boil. The boiling causes a vapor pocket to form.
Implementation Method 3
The present teachings can provide a device including at least two electrodes, and a suction port situated to draw a vapor pocket generated by a first electrode towards another electrode.
Implementation Method 4
The second electrode can be energized to a level sufficient for tissue vaporization. The first and second electrodes can concurrently vaporize tissue.
Implementation Method 5
Any tissue that comes into contact with the vapor pocket is vaporized.
Data Source
AI summary
Electrosurgical devices that reduce surgery time while still adhering to surgical standards are provided. An electrosurgical device can include a tripolar configuration. A primary electrode can be used to generate a vapor pocket. A secondary electrode can be activated after the vapor pocket is generated. The vapor pocket can be steered to be between the primary and secondary electrodes and a surgery target.