Electrosurgical Handpiece with Rotatable Electrode Attachment

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Solution Overview

Problem

Current electrosurgical instruments lack flexibility in operational parameters such as power settings, temperature control, and RF energy settings, making them less adaptable to various surgical procedures.

Innovation Solution

An electrosurgical handpiece with a detachable electrode attachment that allows for rotational positioning to change electrical connections, enabling different voltage and waveform settings, combined with a feedback unit and RF unit to adjust electrical signals based on the attachment's position, and a visual display for parameter indication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single electrosurgical instrument is used for multiple procedures, then device versatility is improved, but operational parameter flexibility deteriorates

Engineering Contradiction:

Improvedevice versatilityVSAvoidoperational parameter flexibility

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The handpiece incorporates a rotatable electrode attachment that can be positioned at multiple angular positions (0°, 45°, 90°, 135°) to dynamically change electrical connections. This mechanical rotation allows the same device to provide different voltage and waveform settings, transforming a static instrument into a dynamic one that adapts to different surgical procedures while maintaining operational flexibility

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The electrosurgical handpiece is designed as a universal platform that can perform multiple surgical functions through a single device. By integrating the rotatable electrode attachment with different contact positions and the feedback-controlled RF unit, the instrument can execute cutting, coagulation, and other electrosurgical procedures, eliminating the need for multiple separate instruments

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If multiple electrosurgical instruments are used for different procedures, then operational parameter flexibility is improved, but device complexity increases

Engineering Contradiction:

Improveoperational parameter flexibilityVSAvoiddevice complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges multiple electrosurgical functions into a single handpiece by combining the RF unit, feedback control system, and rotatable electrode attachment with multiple contact positions. This consolidation integrates what would traditionally require separate instruments into one unified device, reducing overall system complexity while maintaining full operational flexibility across different surgical procedures

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The electrode attachment is segmented into distinct contact positions (0°, 45°, 90°, 135°) that can be independently selected through rotation. This segmentation allows each position to be optimized for specific procedures while maintaining the simplicity of a single handpiece structure, enabling parameter flexibility without proportionally increasing overall device complexity

Inventive Principle:

Principle #1Segmentation

3Device complexity

If electrode attachment is fixed, then device simplicity is improved, but adaptability to different procedures deteriorates

Engineering Contradiction:

Improvedevice simplicityVSAvoidprocedure adaptability

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The electrode attachment transitions from a fixed configuration to a rotatable one, enabling dynamic reconfiguration during surgical procedures. The simple rotational mechanism allows the electrode to be positioned at different angles (0°, 45°, 90°, 135°) to change electrical connections, providing procedure-specific adaptability while maintaining mechanical simplicity through a single degree of freedom

Inventive Principle:

Principle #15Dynamics

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 versatile tool that can be configured for specific surgical procedures by altering electrical signals and power settings, enhancing the surgeon's ability to perform diverse surgical tasks efficiently and safely.

Implementation Method 1

electrosurgical instrument to perform a desired cutting procedure and then utilize another electrosurgical instrument to perform a procedure to coagulate blood vessels

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Data Source

PatentEP2928400B1Electrosurgical handpiece

Publication Date: 2020.12.02 ELLMAN

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AI summary

One embodiment of the present invention is a electrosurgical tool which includes a electrically powered handpiece with a detachable electrode at one end and a power connection at the other. The handpiece includes a feedback controller incorporated in tool to adjust operational characteristics of the electrosurgical tool.