Rotating Skin-Piercing Securing Device for Catheter Attachment

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Solution Overview

Problem

Current methods for securing medical devices like catheters to the skin are cumbersome, prone to loosening, painful, and pose risks of infection and injury due to the need for suturing, which is difficult to perform and requires sterile equipment, leading to complications such as needle stick injuries and inadequate securing.

Innovation Solution

A securing device with a skin-piercing element that can be easily rotated into the skin orthogonally, featuring a roughened surface or barbs, allowing for simple and secure attachment and removal, designed for use with various medical products, including catheters and drain tubes, with a spiral spring configuration to minimize tissue irritation and provide controlled penetration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If suturing is used to secure catheters to the skin, then the catheter can be securely attached, but the procedure becomes complex, painful, and carries risks of infection and injury

Engineering Contradiction:
Improvesecuring reliabilityVSAvoidsecuring procedure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the needle and thread components from the securing procedure by using a self-retaining catheter design where the catheter itself forms retention loops that secure to the skin without external suturing materials, thereby eliminating the complexity and risks associated with traditional suturing while maintaining securing reliability

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The catheter is designed with self-retaining features where the catheter body forms retention loops that automatically secure to the skin through a simple rotational insertion, eliminating the need for external suturing materials and procedures while maintaining secure attachment

Inventive Principle:
Principle #25Self-service

2Reliability

If suturing is used to secure catheters, then the catheter can be firmly attached, but the risk of needle stick injuries and infections increases

Engineering Contradiction:
Improvesecuring reliabilityVSAvoidinfection and injury risk
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent removes the needle and thread from the securing process by implementing a self-retaining catheter design where the catheter body itself forms retention loops that secure to the skin, thereby eliminating needle stick injuries and infection risks associated with traditional suturing while maintaining secure attachment

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs a disposable self-retaining catheter design that eliminates the need for reusable needles and threads, reducing infection risks and the need for sterilization while maintaining effective securing through the catheter's integrated retention mechanism

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Object-affected harmful factors

If traditional plasters are used for securing, then the piercing site is covered, but the catheter is not securely attached and may loosen

Engineering Contradiction:
Improvepiercing site protectionVSAvoidsecuring reliability
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent combines the functions of the catheter body and retention mechanism into a single integrated self-retaining design, where the catheter itself forms retention loops that actively secure to the skin, eliminating the need for separate plasters for securing while maintaining piercing site coverage and secure attachment

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20230058370A1Securing device and assembly comprising a retaining element and a securing device
Publication Date: 2023.02.23 EBNET MEDICAL GMBH
  • US20230058370A1 patent drawing
  • US20230058370A1 patent drawing
  • US20230058370A1 patent drawing

AI summary

The invention relates to a securing device (1) designed for securing a medical, cosmetic, decorative or other type of item to the skin of a living being, wherein the securing device (1) has at least one main puncturing element (2) with a puncturing tip (3), wherein the main puncturing element (2) is designed for penetrating into the skin of the living being, and the securing device (1) has at least one securing section (6, 16) coupled to the main puncturing element (2) and for securing the item to be secured on the securing device (1), wherein the the securing device (1) is designed for securing the main puncturing element (2) in the skin by means of a rotational movement of the securing device (1), whose axis of rotation runs orthogonal to the surface of the skin.