Plasma Electrosurgical Probe for Diabetic Foot Ulcer Debridement
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Solution Overview
Problem
Current treatments for diabetic foot ulcers are inadequate in effectively debriding tissue, increasing blood flow, and promoting healing, especially in early stages and after extensive tissue damage, with existing methods being costly and not conclusively beneficial.
Innovation Solution
An electrosurgical method using an active electrode with a high-frequency voltage potential difference to generate plasma, which debrides tissue, increases blood flow, and leverages the body's cytokine response for healing, applicable at any stage of the condition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If topical debriding enzymes are used, then tissue debridement is achieved, but cost increases and benefit is not conclusively shown
Solution Approach 1:
The patent replaces enzymatic debridement with electrosurgical plasma-based debridement. The active electrode generates plasma that physically and chemically debrides tissue through electrical energy interaction, eliminating the need for expensive topical enzymes while providing more reliable and demonstrable debridement effectiveness.
Solution Approach 2:
The patent changes the treatment parameter from chemical (enzymatic) to physical-electrical (plasma). By applying high-frequency voltage to generate plasma, the system achieves debridement through controlled electrical energy interaction with tissue, offering a more cost-effective and reliable alternative to enzymatic treatments.
2Reliability
If debridement is performed to increase blood flow, then healing is promoted, but tissue removal is required which may increase procedure complexity
Solution Approach 1:
The electrosurgical probe performs multiple functions simultaneously: it debrides unhealthy tissue, creates controlled perforations to increase blood flow, and can stimulate healing through plasma application. This multi-functionality reduces overall procedure complexity by consolidating multiple treatment steps into a single integrated process.
Solution Approach 2:
The patent merges debridement, blood flow stimulation, and healing promotion into a single electrosurgical treatment process. The active electrode combines tissue removal and vascular stimulation functions, eliminating the need for separate procedures and simplifying the overall treatment protocol.
3Reliability
If early intervention is applied, then healing is stimulated before lesion breakdown, but treatment timing must be precisely controlled
Solution Approach 1:
The electrosurgical system incorporates real-time monitoring and control mechanisms that allow precise timing of plasma application. The system can detect tissue conditions and adjust treatment parameters dynamically, ensuring optimal timing for healing stimulation while preventing treatment delays or premature intervention.
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
The method effectively removes unhealthy tissue, improves blood flow, and stimulates healing by altering inflammatory responses, reducing pain and inflammation, and promoting tissue repair, making it suitable for both early and late-stage treatments.
Implementation Method 1
applying a high-frequency voltage potential difference across the active electrode and a return electrode sufficient to generate plasma at the active electrode
Data Source
AI summary
An electrosurgical method for treating foot ulcer, including diabetic foot ulcer, comprising: positioning an active electrode in close proximity to the ulcer, the active electrode being disposed on a distal end of an electrosurgical shaft; applying a high-frequency voltage potential difference across the active electrode and a return electrode in the presence of an electrically conductive fluid, the voltage potential being sufficient to generate plasma at the active electrode; and stimulating the ulcer with the active electrode to increase blood flow, remove unhealthy tissue and induce the body's natural healing response.