Needle Shield Remover With Angled Grip Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional medicament delivery devices require significant dexterity and force to remove needle shields, which can be a barrier for patients and caregivers, posing a challenge in maintaining sterility and safety.
Innovation Solution
A needle shield remover with a carrier sheath and grip mechanism, where the grip handles are angled and radially protrude through holes in the needle cap, engaging the carrier sheath to displace the needle shield with reduced force, utilizing a rigid needle cap and deformable grip material for ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional needle shield is used to maintain sterility, then the needle remains protected, but significant force and dexterity are required to remove the shield
Solution Approach 1:
The device is divided into distinct functional segments: a rigid needle cap for structural support, a flexible carrier sheath for engaging the needle shield, and a grip mechanism for force application. This segmentation allows each component to perform its specific function optimally while working together to solve the contradiction between maintaining secure engagement and enabling easy removal.
Solution Approach 2:
The carrier sheath is designed with dynamic properties, being flexible yet capable of transmitting force effectively. The grip mechanism allows for dynamic force application during removal. This dynamic design enables the system to transition from a static protected state to an active removal state, resolving the contradiction between secure maintenance and easy removal.
2Stability of the object's composition
If the needle shield is made of flexible material for sterility protection, then the shield can conform to the needle, but more force is needed to remove it from the needle
Solution Approach 1:
The carrier sheath acts as an intermediary between the grip mechanism and the needle shield. It engages the flexible needle shield and translates the gripping force into effective removal motion. This intermediary allows the flexible shield to be removed with less direct force application, resolving the contradiction between flexibility and removal ease.
Solution Approach 2:
The system changes the parameters of force application through the angled abutting surfaces and the mechanical advantage provided by the grip mechanism. By changing how force is applied rather than changing the shield material properties, the system enables easy removal while maintaining the necessary flexibility for sterility protection.
3Strength
If a rigid needle cap is used to protect the needle, then the needle is protected from damage, but the needle shield removal requires more dexterity
Solution Approach 1:
The device segments the protection and removal functions into separate components: the rigid needle cap provides structural protection, while the flexible carrier sheath and grip mechanism handle the removal operation. This segmentation allows the rigid cap to maintain needle protection without compromising removal ease, as the removal mechanism works independently within the cap structure.
Data Source
AI summary
Described is a needle shield remover (6) comprising a needle cap (5), a carrier sheath (6.2) axially slidably disposed in the needle cap (5) and adapted to engage a needle shield (4) disposed on a needle (3), and a grip (6.1) transversely slidably disposed in the needle cap (5) and adapted to engage the carrier sheath (6.2) to displace the carrier sheath (6.2) and the needle shield (4) axially relative to the needle cap (5).