Electrosurgical Blade Testing Apparatus Using Load Sensors

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Solution Overview

Problem

Current methods for testing the performance of electrosurgical blades are subjective and dependent on human operators, lacking objective and quantitative measures for evaluating cutting performance and non-stickiness, which can lead to inconsistent results and increased surgical costs due to premature blade degradation.

Innovation Solution

A test apparatus comprising a frame, clamp module, and tool module that allows for controlled cuts on test materials, using load sensors to measure resistance force and tension sensors to assess non-stickiness, providing objective and repeatable performance evaluation of electrosurgical blades.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If human operators perform subjective testing of electrosurgical blade performance, then the testing process is simple to implement, but the measurement precision and objectivity of cutting performance evaluation deteriorates

Engineering Contradiction:
Improvecutting performance measurement precisionVSAvoidtesting apparatus complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical/manual testing system with an automated apparatus that uses load sensors to measure cutting forces and tension sensors to measure stickiness forces. This substitution eliminates human subjectivity while providing quantitative, objective measurements of electrosurgical blade performance through electronic sensing and data processing systems.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces sensors as intermediary devices between the electrosurgical blade and the test material. Load sensors measure the resistance force during cutting, while tension sensors measure the non-stickiness after cutting. These intermediaries translate physical interactions into measurable electrical signals, enabling precise and objective performance evaluation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If controlled cutting tests are performed to evaluate electrosurgical blade performance, then the reliability of performance evaluation improves, but the difficulty of detecting and measuring cutting parameters increases

Engineering Contradiction:
Improveperformance evaluation reliabilityVSAvoidcutting parameter measurement difficulty
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent employs electronic sensing systems to automatically detect and measure cutting parameters such as resistance force and stickiness force. This replaces manual observation and subjective assessment, enabling reliable, repeatable measurements of cutting performance through objective electronic data collection and analysis.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If quantitative measurement methods are implemented for electrosurgical blade testing, then the productivity and efficiency of blade evaluation improves, but the device complexity increases

Engineering Contradiction:
Improveblade evaluation efficiencyVSAvoidtesting system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements an automated testing system that uses electronic sensors and data processing to rapidly evaluate electrosurgical blade performance. This automation enables multiple blades to be tested efficiently with consistent, quantitative metrics, significantly improving evaluation productivity despite the increased complexity of the automated apparatus.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS10551282B2Apparatus and method for testing performance of an electrosurgical tool
Publication Date: 2020.02.04 CITY UNIVERSITY OF HONG KONG
  • US10551282B2 patent drawing
  • US10551282B2 patent drawing
  • US10551282B2 patent drawing

AI summary

An apparatus and a method for testing performance of an electrosurgical tool include a frame, a clamp module coupled to the frame and configured to retain a test material in a selected orientation, and a tool module coupled to the frame and configured to grip an electrosurgical tool. The apparatus is configured to: (a) allow a user to perform a controllable cut to evaluate a cutting performance of the electrosurgical tool based on a resistance force between the electrosurgical tool and the test material as the electrosurgical tool performs the controllable cut; and (b) evaluate a non-stickness of the electrosurgical tool after the electrosurgical tool performs the controllable cut.