Curved Blade Debridement Device for Wound Tissue Removal
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Solution Overview
Problem
Current medical devices for removing unwanted tissue from wounds are not specifically designed for this purpose and often result in suboptimal performance and increased time consumption due to their general design.
Innovation Solution
A device with a curved blade configuration, where one face forms the inner curve and the other the outer curve, connected to an elongated handle, is designed to efficiently remove dead tissue from wounds while minimizing the removal of live tissue, featuring a sharpened edge and a guard to prevent slipping and exposure to tissue or fluids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If standard medical devices such as a standard scalpel are used to cut away unwanted tissue, then the device is readily available and easy to use, but the results are less than optimal and more time consuming
Solution Approach 1:
The blade is designed with different properties in different regions: the distal portion has a curved shape with a radius of curvature between 5-20mm to access wound contours, while the proximal portion has a straight shaft for stability. The edge is sharpened to a specific angle (15-30 degrees) for optimal cutting performance. This local differentiation allows the single blade to perform multiple functions with high precision.
Solution Approach 2:
The distal portion of the blade is curved rather than straight, with a specified radius of curvature (5-20mm) that matches the contours of human wounds and tissue surfaces. This curvature enables the blade to follow wound bed topography, access difficult-to-reach areas, and maintain consistent contact with the tissue surface during debridement, significantly improving both efficiency and precision.
2Productivity
If a curved blade is used to access difficult-to-reach tissue, then debridement efficiency improves, but the device complexity increases
Solution Approach 1:
The blade is segmented into distinct functional zones: a curved distal portion (5-20mm radius) for accessing wound contours and difficult-to-reach tissue, and a straight proximal shaft for providing structural stability and control. This segmentation allows each portion to be optimized for its specific function while keeping the overall device relatively simple.
Solution Approach 2:
The distal portion of the blade is curved rather than straight, with a specified radius of curvature (5-20mm) that matches the contours of human wounds and tissue surfaces. This curvature enables the blade to follow wound bed topography, access difficult-to-reach areas, and maintain consistent contact with the tissue surface during debridement, significantly improving both efficiency and precision.
3Productivity
If the blade edge is sharpened for effective cutting, then debridement effectiveness improves, but the risk of damaging live tissue increases
Solution Approach 1:
The blade is designed with different properties in different regions: the distal portion has a curved shape with a radius of curvature between 5-20mm to access wound contours, while the proximal portion has a straight shaft for stability. The edge is sharpened to a specific angle (15-30 degrees) for optimal cutting performance. This local differentiation allows the single blade to perform multiple functions with high precision.
Solution Approach 2:
The distal portion of the blade is curved rather than straight, with a specified radius of curvature (5-20mm) that matches the contours of human wounds and tissue surfaces. This curvature enables the blade to follow wound bed topography, access difficult-to-reach areas, and maintain consistent contact with the tissue surface during debridement, significantly improving both efficiency and precision.
Data Source
AI summary
The preferred embodiment of this invention will allow a medical practitioner to more easily, quickly, and specifically remove unwanted tissue from a patient. The curved blade with a specialized surface for cutting and scraping is better suited than current options for performing this task.