Prefilled Syringe Packaging Layout for Vertical Impact Stability
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Solution Overview
Problem
The needle unit in a prefilled syringe system can become unfixed from its case during transportation due to impacts in the vertical direction, especially when the needle unit extends orthogonally to the up-and-down direction of the outer box.
Innovation Solution
The axial direction of the needle body is aligned with the up-and-down direction of the outer box, and a supporting unit is provided to prevent the needle unit case from being unfixed or displaced, using a configuration that includes a needle unit case supporting unit and a base portion to secure the needle unit case within the packaging main body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the needle unit extends in a direction orthogonal to the up-and-down direction of the outer box, then the packaging efficiency is improved, but the needle unit becomes unfixed from the needle unit case when vertical impact is applied during transportation
Solution Approach 1:
The patent inverts the orientation of the needle unit from orthogonal (horizontal) to aligned (vertical) with the up-and-down direction of the outer box. This inversion of the arrangement direction resolves the technical contradiction by making the needle unit's orientation consistent with the impact direction, thereby preventing unfixing during vertical impact while maintaining packaging efficiency.
2Ease of operation
If the needle unit case is loosely arranged in the packaging main body, then the ease of operation is improved, but the needle unit case can be displaced during transportation
Solution Approach 1:
The patent segments the packaging structure into distinct components: the packaging main body and the supporting unit with positioning protrusions. This segmentation allows the supporting unit to provide precise positioning functionality while keeping the overall arrangement process simple, resolving the contradiction between ease of operation and positional stability.
Solution Approach 2:
The supporting unit acts as an intermediary element between the packaging main body and the needle unit case. It provides positioning protrusions that engage with corresponding features on the needle unit case, thereby preventing displacement during transportation while maintaining ease of arrangement through its simple structure.
Data Source
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AI summary
A medical equipment package (10A) is provided with a plurality of syringe packaging bodies (11) including a prefilled syringe system (700) and a packaging main body (12), and an outer box (13) which accommodates a plurality of syringe packaging bodies (11). A needle unit (760) of the prefilled syringe system (700) is supported with respect to a needle unit case (762) with a largest outer diameter portion (778) provided at a tip end of a needle hub (768) engaging with an inner surface of the needle unit case (762). In the outer box (13), a plurality of syringe packaging bodies (11) is arranged such that an axial direction of a needle body (766) is in an up-and-down direction of the outer box (13).