Skin Fixing Device with Angled Piercing Tips and Bridge
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Solution Overview
Problem
The existing methods for fixing catheters and similar medical devices to the skin are invasive, risky, and inefficient, posing challenges such as deep needle penetration, pain, infection risk, and insufficient fixation, especially due to the need for suturing and the use of needles.
Innovation Solution
A fixing device with minimally invasive, angled or barbed piercing tips and a bridge design that allows for easy, cost-effective, and secure attachment to the skin, featuring a protective mechanism to prevent accidental exposure of the piercing tips and a suction-like mechanism for secure adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If suturing is used to fix catheters to the skin, then fixation security is improved, but the risk of deep needle penetration and injury to blood vessels increases
Solution Approach 1:
The fixing device is divided into multiple retaining elements (first and second retaining elements) with piercing tips, distributed across a bridge structure. This segmentation allows the fixing function to be distributed across multiple shallow penetration points rather than relying on deep single-point sutures, reducing the risk of hitting blood vessels while maintaining overall fixation security.
Solution Approach 2:
The invention extracts the essential function of fixation from the traditional suture needle and thread system, replacing it with a specialized retaining element that has a piercing tip designed for minimal invasive penetration. This extracted function is implemented through barbed or angled tips that provide secure anchoring without requiring deep penetration or knotting, thereby eliminating the harmful effects of deep needle insertion.
2Reliability
If suturing is used to fix catheters, then fixation security is improved, but the complexity of the procedure and material requirements increase
Solution Approach 1:
The fixing device merges multiple functions into a single integrated structure: the bridge provides structural support and positioning, while the first and second retaining elements with piercing tips provide fixation. This combination eliminates the need for separate needles, threads, and knotting instruments, simplifying both the device and the procedure while maintaining reliable fixation.
Solution Approach 2:
The fixing device is designed as a disposable unit that can be easily applied and removed without the need for complex sterile processing of reusable suturing instruments. The entire device including the bridge and retaining elements can be manufactured as a single-use component, reducing material complexity and eliminating the need for sterilization of multiple separate instruments.
3Object-affected harmful factors
If traditional plasters are used for fixing, then the piercing site is covered, but fixation security is insufficient
Solution Approach 1:
The bridge structure serves multiple functions simultaneously: it provides structural support for the retaining elements, acts as a sterile drape covering the piercing site similar to traditional plasters, and offers a surface for securing the catheter. This multi-functional design combines the protective covering function of plasters with the secure fixation capability of sutures, eliminating the need for separate components.
Data Source
AI summary
The invention relates to a fixing device for fixing a medical, cosmetic, decorative or other article to the skin of a living being, the fixing device comprising the following features: a) a first retaining element having a first piercing point, which is designed to pierce the skin, b) a second retaining element having a second piercing point, which is designed to pierce the skin, the second piercing point being arranged at a distance from the first piercing point, c) a bridge, to which the first and the second retaining element are fastened, d) a fixing portion, which is connected to the bridge or is part of the bridge, the fixing portion being designed to fix the article that is to be fixed.