Elastic Needle Fixation Device with Segmented Adhesive Structure
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Solution Overview
Problem
Conventional methods for securing wing needles, particularly in haemodialysis and perfusion procedures, are inadequate as they rely on adhesive tapes that are uncomfortable, prone to causing skin issues, and fail to securely hold needles in place, especially in patients with uncontrolled movements, leading to risks of needle displacement and infection.
Innovation Solution
A device with a first and second adhesive part, separated by a central non-adhesive part, allowing for secure fixation without direct skin contact or adhesive tape, made of elastic material for flexibility and visibility, with a longitudinal slit for easy placement and removal, reducing the risk of needle displacement and infection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive tapes are used to secure the needle, then the needle can be held in place, but the patient experiences skin irritation and discomfort
Solution Approach 1:
The patent introduces a specialized fixation device that acts as an intermediary between the needle and the patient's skin. This device includes a base portion with adhesive properties for secure attachment, a body portion that provides structural support, and a protective cap that covers the needle. The intermediary device distributes the adhesive contact over a larger area and provides a barrier between the needle and skin, thereby maintaining fixation stability while reducing skin irritation.
Solution Approach 2:
The fixation device incorporates a flexible body portion made of a thin film material that can conform to the patient's skin contour. This flexible structure provides secure mechanical support for the needle while being gentle on the skin. The thin film design allows for comfortable wear and reduces the risk of skin irritation compared to rigid adhesive tapes.
2Reliability
If adhesive tapes are used to secure the needle, then the needle can be held in place, but the patient is at risk of needle displacement during uncontrolled movements
Solution Approach 1:
The fixation device is segmented into multiple functional components: a base portion with adhesive properties for secure attachment to the skin, a body portion that provides structural support and mechanical strength, and a protective cap that covers the needle. This segmentation allows each component to be optimized for its specific function, with the base providing strong adhesion and the body providing structural integrity to resist uncontrolled movements.
Solution Approach 2:
The body portion of the fixation device features a curved or contoured design that conforms to the natural curvature of the patient's skin and the needle insertion site. This curved structure provides better mechanical support and distribution of forces, enhancing the device's ability to resist displacement during uncontrolled movements while maintaining comfort.
3Reliability
If adhesive tapes are used to secure the needle, then the needle can be held in place, but the tubing becomes masked and difficult to visually check
Solution Approach 1:
The fixation device incorporates a transparent or translucent body portion that allows visual inspection of the puncture site and tubing underneath. This transparency maintains visibility of the medical procedure while providing secure fixation. The device may also include color-coded indicators or markings to enhance visibility of the tubing path and puncture site status.
4Reliability
If adhesive tapes are used to secure the needle, then the needle can be held in place, but removal is difficult and time-consuming
Solution Approach 1:
The fixation device incorporates a pre-attached protective cap that covers the needle before insertion. This preliminary protective action eliminates the need for separate taping operations and simplifies the overall process. The cap remains in place during the procedure and can be quickly removed when needle extraction is needed, reducing the time required for removal compared to multiple adhesive tapes.
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 device effectively secures wing needles without adhesive contact, reducing skin irritation and needle displacement risks, facilitating easy removal and maintaining visibility of the puncture site, thus enhancing patient safety and reducing infection risks during prolonged procedures like haemodialysis.
Implementation Method 1
made of elastic material for flexibility
Data Source
AI summary
Device for fixing and protecting a needle, this device having a first and a second adhesive part, separated by a central part, the first part being intended to be fixed to the skin, opposite the chosen penetration site for the needle, only one of the faces of the first part being adhesive, and a cutting line defining two longitudinal arms, each of these two arms including an outermost part belonging to the second adhesive part.