Hinged Pull Tab Plaster for Secure Tube Fixation
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Solution Overview
Problem
Existing plasters for securing medical tubes to patients are difficult to handle, especially with gloves, and do not allow for easy visualization of allergic reactions or infections, often causing skin irritation and pressure ulcers due to inadequate pressure distribution.
Innovation Solution
A plaster design featuring a top layer and base layer with a hinge allowing the pull tab to be oriented away from the skin, incorporating a cushioning material for comfort, and transparent layers for visibility, along with a grip tab for easy peeling and secure adhesion to both the tube and patient.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the plaster uses a rigid pull tab for secure handling, then the handling ease is improved, but skin irritation increases due to the rigid material not conforming to skin contours
Solution Approach 1:
The plaster is divided into a flexible base layer and a separate pull tab component connected by a hinge. This segmentation allows the pull tab to be detached from the skin-contacting portion, enabling easy handling without requiring the entire plaster to be rigid.
Solution Approach 2:
The pull tab function is extracted as a separate removable component from the main plaster body. The pull tab can be removed after application, leaving only the flexible base layer in contact with the skin, thus providing handling ease without skin irritation from rigid materials.
2Strength
If the plaster uses opaque material for durability, then the strength is improved, but the ability to detect allergic reactions or infections worsens due to inability to visualize the skin underneath
Solution Approach 1:
The base layer is made transparent specifically in the areas that contact the skin, while other portions of the plaster may remain opaque for structural support. This local quality change allows visualization of the skin underneath without compromising the overall strength and durability of the plaster structure.
3Reliability
If the plaster applies strong adhesive force to secure the tube, then the fixation reliability is improved, but skin injury risk increases due to excessive pressure on delicate skin areas
Solution Approach 1:
A cushioning layer is incorporated between the adhesive base layer and the patient's skin. This cushioning layer distributes the pressure from the tube and plaster over a larger area, preventing excessive pressure on delicate skin areas while maintaining secure tube fixation through the adhesive.
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
Facilitates easier handling and reduces skin irritation by minimizing contact and allowing early detection of allergic reactions or infections, while providing secure tube fixation and comfort, especially for delicate skin areas.
Implementation Method 1
the lower surface of the base layer is provided with an adhesive for adhering the plaster to the patient
Implementation Method 2
at least a portion of the lower surface of the top layer or the upper surface of the base layer is provided with an adhesive for adhering the plaster to the tube
Data Source
AI summary
The invention provides a plaster for use in securing a tube to a patient. The plaster comprises a top layer having an upper surface, a lower surface, and a pull tab. The plaster also comprises a base layer having an upper surface, and a lower surface. At least a portion of the lower surface of the top layer or the upper surface of the base layer is provided with an adhesive for adhering the plaster to the tube. The lower surface of the base layer is provided with an adhesive for adhering the plaster to the patient. The top layer includes a hinge about which the pull tab can be oriented away from the skin of the patient.