Nested Packaging Assembly With Fixing Flaps For Sequential Drug Device Access

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Solution Overview

Problem

Existing packaging assemblies for multiple drug delivery devices can be confusing for users, particularly in self-medication settings, leading to a risk of incorrect usage and mixing of devices, which compromises patient safety.

Innovation Solution

A nested packaging assembly design featuring an inner packaging for one drug delivery device and an outer packaging for another, with foldable fixing flap portions that create a non-releasable interconnection, ensuring the second device is used before the first, thus providing an intuitive and safe usage order without the need for adhesives.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If two drug delivery devices are provided in a common packaging assembly, then the treatment kit is complete and commercially convenient, but the patient may confuse the devices and use them in an inappropriate way

Engineering Contradiction:

Improvecompleteness of treatment kitVSAvoidclarity of usage instruction

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The packaging assembly is segmented into an inner packaging and an outer packaging, with each packaging containing a different drug delivery device. This physical separation creates distinct access levels where the inner packaging must be opened first to access the first device, and only after removing the inner packaging can the second device be accessed from the outer packaging. This segmentation transforms the confusing simultaneous availability of both devices into a clear sequential access pattern.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The inner packaging is nested within the outer packaging, creating a hierarchical structure where the inner packaging serves as a protective and instructional layer for the first device. The nested arrangement ensures that the patient encounters the inner packaging first, follows its opening instructions, uses the first device, and only then can access the outer packaging for the second device. This nesting principle physically embeds the usage sequence into the packaging structure itself.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Reliability

If foldable fixing flap portions are used to interconnect inner and outer packaging, then the packaging provides clear usage indication and secure fixation, but the manufacturing complexity increases

Engineering Contradiction:

Improvesecurity of packagingVSAvoidpackaging structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The fixing mechanism uses dynamic foldable flap portions that can be folded along predetermined fold lines to transition from a flat manufacturing state to a three-dimensional fixed structure. These flaps are designed to be foldable along specific axes, allowing them to engage with the outer packaging and create a mechanically interlocked assembly. The dynamic nature of the flaps enables secure fixation while maintaining manufacturing simplicity through flat-blank fabrication methods.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The foldable fixing flap portions act as intermediary elements between the inner packaging and the outer packaging. Rather than directly connecting the two packagings or using complex fastening mechanisms, the flaps serve as mediating components that bridge the inner and outer packaging structures. These flaps engage with corresponding features on the outer packaging to create a secure interconnection, simplifying the overall assembly process while ensuring reliable fixation.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If the inner packaging is made non-removable from the outer packaging, then device confusion is prevented, but the ease of manufacture decreases due to the need for adhesives

Engineering Contradiction:

Improveprevention of device mixingVSAvoidpackaging assembly process

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The invention replaces chemical bonding methods (adhesives) with a mechanical interlocking system. The foldable fixing flap portions are designed to engage with corresponding features on the outer packaging through mechanical means such as hooks, slots, or interlocking geometries. This mechanical substitution eliminates the need for adhesives while achieving the same goal of making the inner packaging non-removable, thereby preventing device confusion and simplifying the manufacturing process by removing the adhesive application step.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP2778086B1Packaging assembly to accommodate at least two items

Publication Date: 2017.04.19 SANOFI AVENTIS DEUT GMBH

Figure 1~2
Figure 3

AI summary

The present invention relates to a packaging to accommodate an item and to a packaging assembly having an inner packaging (10) and an outer packaging (20), the inner packaging (10) to accommodate an item, comprises: - a bottom portion (12), - a first sidewall portion (14) and a second sidewall portion (16) extending along opposite sides of the bottom portion (12), - at least one front face (17) extending between an end of first sidewall portion (14), second side wall portion (16) and bottom portion (12), and - at least one fixing flap portion (12a, 12b) extending as an extension of the bottom portion (12) beyond the front face (17) to engage with an inside of an outer packaging (20) adapted to receive the packaging.