Surgical Drape With Absorbent Middle Layer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current surgical drapes often fail to maintain a dry top surface during procedures, leading to contamination risks and increased costs due to the need for additional absorbent pads, and they lack efficient instrument storage solutions.
Innovation Solution
A disposable, multiple-layer surgical drape with a fluid impervious bottom layer, a corrugated fluid absorbent middle layer, and a fluid repellent top layer, featuring continuity breaks that expose the absorbent layer to ensure a dry surface and an attachable storage member for instruments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a fluid absorbent layer is used to absorb fluid generated during surgery, then fluid absorption capacity is improved, but the top surface becomes soaked with blood or bodily fluids leading to contamination risks
Solution Approach 1:
The drape is divided into three distinct functional layers: a fluid repellent top layer, a fluid absorbent middle layer, and a fluid impervious bottom layer. This segmentation allows each layer to perform its specific function independently - the top layer repels fluid to maintain a dry surface, the middle layer absorbs the bulk of the fluid, and the bottom layer prevents fluid penetration to the patient.
Solution Approach 2:
Each layer of the drape has different local properties tailored to its specific function. The top layer has fluid repellent properties, the middle layer has high fluid absorbency, and the bottom layer has fluid impervious characteristics. This local quality differentiation resolves the contradiction by ensuring that the area in contact with the surgical field remains dry while the internal structure handles fluid absorption.
2Quantity of substance
If the absorbent layer capacity is increased to handle excessive fluid, then fluid absorption capacity is improved, but the drape becomes heavier and more expensive
Solution Approach 1:
Instead of using a single thick absorbent layer, the drape segments the fluid management function across three layers with different properties. The middle absorbent layer can be of moderate thickness since it works in conjunction with the repellent top layer and impervious bottom layer, reducing the overall complexity and weight while maintaining high fluid absorption capacity.
Solution Approach 2:
The drape utilizes composite construction with three different material layers, each selected for its specific fluid interaction properties. This composite structure achieves superior fluid management performance without requiring excessive material in any single layer, thereby reducing overall weight and manufacturing complexity.
3Object-affected harmful factors
If a fluid repellent layer is added to maintain a dry top surface, then contamination risk is reduced, but fluid may spill onto the floor when the absorbent layer becomes overwhelmed
Solution Approach 1:
The three-layer segmented structure provides multiple lines of defense against fluid spillage. The top repellent layer prevents initial fluid contact with the surface, the middle absorbent layer captures and holds fluid volume, and the bottom impervious layer acts as a fail-safe barrier to prevent any fluid from reaching the patient or floor, thereby maintaining both dry surface and high reliability.
Solution Approach 2:
The bottom fluid impervious layer serves as a pre-positioned safety barrier that cushions against the possibility of the middle absorbent layer becoming overwhelmed. This prior cushioning ensures that even if the absorbent capacity is exceeded, fluid containment reliability is maintained and spillage is prevented.
4Reliability
If separate attachable absorbent pads are used to prevent fluid spillage, then fluid containment reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent merges the fluid repellent, absorbent, and impervious functions into a single integrated three-layer drape structure. This eliminates the need for separate attachable absorbent pads or multiple components, reducing device complexity and assembly requirements while maintaining high fluid containment reliability through the combined action of all three layers.
Solution Approach 2:
The three-layer drape structure performs multiple functions simultaneously: fluid repellency at the top, fluid absorption in the middle, and fluid containment at the bottom. This multi-functionality replaces the need for multiple separate components or attachments, simplifying the overall device while enhancing reliability.
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 drape effectively prevents fluid penetration onto the patient and maintains a dry top surface, reducing contamination risks and costs, while providing a convenient and hygienic storage solution for surgical instruments.
Implementation Method 1
a middle layer configured as a fluid absorbent layer
Implementation Method 2
corrugated fluid absorbent middle layer
Implementation Method 3
a top layer configured as a fluid repellent layer
Implementation Method 4
corrugated fluid absorbent middle layer
Data Source
AI summary
A disposable, multiple layer surgical drape is provided. The surgical drape includes a bottom layer configured as a fluid impervious layer, a middle layer configured as a fluid absorbent layer, and a top layer configured as a fluid repellent layer. The middle layer is disposed between the top and bottom layers and has varying thickness. The top layer includes one or more continuity breaks exposing the middle layer.