Braided Sleeve Needle Shield Remover Friction Grip
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Solution Overview
Problem
Existing needle shield removers face challenges such as varying grip capabilities due to tolerance differences and difficulties in gripping rubber materials, leading to inefficient removal of both flexible and rigid needle shields.
Innovation Solution
A needle shield remover with a generally tubular body featuring a braided sleeve that creates a friction fit with the needle shield, providing a larger contact area and enhanced grip through its longitudinal extension and contractability, made from materials like plastic or metal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If discrete contact elements (tongues, protrusions) are used to engage the needle shield, then the device complexity is reduced, but the grip capability varies due to tolerance differences and difficulty in gripping rubber material
Solution Approach 1:
The patent employs a braided sleeve made of flexible material that can conform to the needle shield surface. This flexible structure provides consistent grip capability across tolerance variations, eliminating the reliability issues associated with discrete rigid contact elements while maintaining ease of operation.
Solution Approach 2:
The braided sleeve's material properties and geometric parameters are optimized to create sufficient friction with the needle shield surface. By changing the parameters of the flexible material (such as surface texture, braid pattern, and elasticity), the design achieves reliable grip performance across different needle shield tolerances.
2Ease of operation
If a braided sleeve with large contact area is used, then the friction fit and grip capability are improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The braided sleeve functions as a flexible shell that naturally provides large surface area contact with the needle shield. This approach achieves improved friction fit without requiring complex internal mechanisms or multiple components, thereby limiting the increase in device complexity.
Solution Approach 2:
The braided sleeve is constructed from composite or braided material that combines flexibility with sufficient structural integrity. This material choice allows the sleeve to maintain its shape while providing large contact area, balancing grip improvement with manageable manufacturing complexity.
3Force
If the braided sleeve is made contractable, then the friction fit is enhanced, but the manufacturing precision requirements increase
Solution Approach 1:
The contractability of the braided sleeve is achieved through controlled changes in material parameters and braid geometry. By optimizing these parameters, the design enhances friction force while keeping manufacturing precision requirements within practical limits for braided component fabrication.
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 braided sleeve design significantly improves the capability to remove needle shields by creating a strong friction fit, simplifying the removal process and addressing manufacturing complexities.
Implementation Method 1
the braided sleeve may have such a diameter that a friction fit is created between the braided sleeve and the needle shield when the needle shield remover is pulled off for removing the needle shield
Data Source
AI summary
A needle shield remover is presented having a generally tubular body with a longitudinal extension and a grip element composed of a braided sleeve arranged to the tubular body, where the braided sleeve has an opening of such a diameter that a needle shield may be introduced, where the diameter narrows such that a friction fit is created between the braided sleeve and the needle shield when said needle shield is pulled for removing the needle shield.