Syringe Needle Guard Extended Finger Flange Grip
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Solution Overview
Problem
Existing syringe systems often have a small finger grip area, making them difficult to manipulate, particularly for users with joint pain or limited dexterity, and existing extended finger flanges do not adequately address this issue.
Innovation Solution
An extended finger flange with increased lateral surfaces that can be removably coupled to the syringe system, providing a larger grip area and secure attachment options such as press fit or snap features, enhancing user comfort and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the finger grip area is kept small to maintain a compact syringe design, then the device size is reduced, but the ease of operation deteriorates for users with joint pain or limited dexterity
Solution Approach 1:
The syringe system is divided into separate functional components: the main syringe body and the needle guard assembly. The needle guard can be detached and replaced, allowing the grip area to be optimized for comfort without increasing the overall syringe volume. This segmentation enables independent optimization of different functional areas.
Solution Approach 2:
The needle guard extends the grip area in a radial dimension outward from the syringe body, rather than increasing the length of the syringe barrel. This dimensional approach provides additional finger contact surface area while maintaining a compact overall device volume.
2Ease of operation
If the finger grip area is extended to improve ease of operation, then grip comfort is improved, but the device complexity increases
Solution Approach 1:
The extended grip features are merged with the needle guard component, which is already a necessary part of the safety syringe system. By integrating the grip extension into an existing component rather than adding a separate part, the overall device complexity is minimized while still achieving improved ergonomics.
Solution Approach 2:
The needle guard serves multiple functions: it provides needle protection, enables safe disposal, and now also serves as an extended grip surface. This multi-functionality approach allows a single component to address multiple needs without increasing device complexity.
Data Source
Figure 1
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AI summary
The syringe system comprises: - a needle guard having a shield (60) and a body (50) configured to receive a syringe, the shield comprising a pair of finger flanges having lateral edges, lateral ends and distal surfaces providing a surface area for the end user's fingers to grip and secure the syringe system, and - an extended finger flange (10) removably coupled with the needle guard and comprising: - a central attachment area which engages the shield (60) of the needle guard, - a pair of lateral flaps (12) configured to be engaged by an end user's fingers, the lateral flaps increasing the surface area available for the end user's fingers; and - internal snaps (17) which press fit against the finger flanges of the shield (60), so that said snaps (17) press against the lateral edges of the finger flanges but not against the lateral ends.