Disposable Glove Partial Chlorination for Cuff Roll-Down Control
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Solution Overview
Problem
Disposable gloves with interior coatings tend to roll down the arm or wrist-forearm of medical staff due to the slippery nature of coated surfaces interacting with the outer surface of gowns, leading to potential contamination.
Innovation Solution
Disposable gloves made of nitrile material with a partial chlorinated coating on the interior surface, leaving the cuff portion uncoated to increase tackiness and reduce friction, preventing roll-down.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the interior surface of disposable gloves is coated to make donning easier, then ease of operation is improved, but the gloves roll down the arm due to slippery interaction with gown surfaces
Solution Approach 1:
The patent applies a coating only to specific regions of the glove interior surface (palmar surface, distal third of dorsal surface) while leaving the proximal two-thirds of the dorsal surface and cuff region uncoated. This creates local differentiation where the coated areas provide ease of donning through reduced friction, while the uncoated areas provide grip and prevent roll-down through increased friction against the gown material.
2Ease of operation
If the entire interior surface is coated to maximize ease of donning, then ease of operation is improved, but the glove cuff rolls down more significantly
Solution Approach 1:
The coating is applied selectively to regions that facilitate donning (palmar surface, distal dorsal surface) while deliberately excluding the proximal dorsal surface and cuff areas. This local differentiation ensures that the uncoated regions maintain high friction characteristics that prevent roll-down and eliminate the harmful contamination risk associated with fully coated gloves.
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 partially coated gloves reduce glove cuff roll-down by up to 38% compared to fully coated gloves, enhancing grip on gown sleeves and minimizing contamination risk.
Implementation Method 1
a chlorinated coating that is only partially disposed on the interior surface of the disposable glove
Implementation Method 2
The uncoated portion of the wrist-forearm area reduces glove cuff roll-down when the disposable glove is worn by a user
Data Source
AI summary
A disposable glove and a method for making the disposable glove that reduces or eliminates glove cuff roll-down. The disposable glove includes a treated area on the interior surface of the glove that extends from the hand area to a portion of the wrist-forearm area of the glove but such that at least a portion of the interior near the glove opening is untreated. The untreated portion of the interior surface of the disposable glove resists glove cuff roll-down when the glove is positioned on a user's hand and forearm.