Electrostatic Handle for Adhesive Wound Dressing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing adhesive devices for wound dressings and IV hold-downs require adhesive layers that are costly to apply and require balancing adhesion strengths, which can lead to inefficiencies and potential skin detachment issues.
Innovation Solution
A handle comprising a non-conductive and conductive layer is electrostatically adhered to the polymeric film without using adhesives, utilizing electrostatic charge for bonding, which eliminates the need for adhesive layers and balances adhesion strengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive layers are used to adhere the handle to the polymeric film, then the handle can be securely retained during handling and application, but the cost increases and adhesion balance becomes complex
Solution Approach 1:
The patent removes the adhesive layer entirely from the handle assembly, extracting the problematic element that caused both cost increase and adhesion balance complexity. The handle is instead adhered to the polymeric film through electrostatic attraction between the conductive handle layer and the non-conductive polymeric film, eliminating the need for adhesive application and simplifying the overall device structure while maintaining secure retention during handling and application.
2Reliability
If adhesive layers are used to adhere the handle to the polymeric film, then the handle can be securely retained, but the manufacturing cost increases
Solution Approach 1:
The patent eliminates the adhesive layer from the manufacturing process, removing the associated costs of adhesive material, application equipment, and quality control. The handle's conductive layer naturally generates electrostatic attraction to the non-conductive polymeric film during manufacturing, providing secure retention without additional manufacturing steps or material costs.
3Strength
If strong adhesive is used on the handle, then the handle adheres well to the polymeric film, but it may peel the polymeric film from the patient's skin during removal
Solution Approach 1:
The patent applies different adhesion mechanisms to different parts of the system: the handle uses electrostatic attraction (reversible and controllable) while the polymeric film's adhesive layer maintains controlled adhesion to the skin. This local differentiation allows the handle to be strongly retained during handling through electrostatic forces without transferring that force to the skin-adhesive interface, preventing skin detachment during handle removal.
Solution Approach 2:
The electrostatic field acts as an intermediary force between the handle and polymeric film, providing adhesion without mechanical stress transfer to the skin. This intermediary mechanism allows the handle to be securely held during application and handling while enabling clean separation from the film without compromising the film's adhesion to the patient's skin.
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
This method reduces costs by eliminating adhesive application and ensures secure retention of the handle to the polymeric film during handling and application, while allowing easy removal without detaching from the patient's skin.
Implementation Method 1
a handle comprising a generally non-conductive layer and a generally conductive layer is adhered to the underlying film of the device by electrostatic charge, rather than by an adhesive
Data Source
AI summary
Adhesive devices used as wound dressings, ingredient delivery devices and IV hold-downs include a handling layer comprised of a layer of conductive material and at least one layer of non-conductive material, adhered to the non-adhesive coated side of an adhesive coated polymeric film layer, by an electrostatic charge, rather than by an adhesive.