Hinged Package Assembly for Safe Auto-Injector Setup
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing medicament delivery devices risk unintentional firing during shipping or transportation due to pre-assembled mechanisms, necessitating robust solutions for user-friendly assembly.
Innovation Solution
A package assembly design comprising a first and second subassembly of a medicament delivery device, where the first subassembly is attached to a pulling element with a gripper, and the second subassembly is attached to a support, allowing for simultaneous assembly upon opening the package by rotating a hinge, with features like elongated arms, grippers, and engaging members for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the medicament delivery device is pre-assembled, then the user can carry out the medicament delivery operation with only one or two steps of manipulation, but there is a risk of unintentional firing during shipping or transportation
Solution Approach 1:
The medicament delivery device is divided into separate subassemblies (first subassembly containing medicament, second subassembly containing power pack) that are kept apart during shipping. The package assembly includes separate first and second shells that receive these subassemblies in separate chambers, preventing unintentional firing while enabling easy user assembly through hinge rotation.
2Reliability
If the medicament delivery device is kept as two separate subassemblies, then the risk of unintentional firing is avoided, but there is a need to facilitate the user to properly set up the medicament delivery device
Solution Approach 1:
The package assembly is designed to automatically assemble the medicament delivery device subassemblies when the user opens the package. Rotating the hinge from closed to open position automatically moves the first subassembly and second subassembly into engagement, allowing the device to assemble itself without requiring additional user manipulation steps.
Solution Approach 2:
The subassemblies are pre-positioned within the package shells in specific orientations and locations. The first subassembly is attached to the first pulling element and the second subassembly is attached to the support, with grippers and engaging members pre-configured to automatically engage when the hinge is rotated, eliminating the need for user assembly steps.
3Reliability
If a cap is used to seal the exit of the contained medicament, then the interior pressure can keep the firing mechanism in place, but additional steps are required to remove the cap
Solution Approach 1:
The protective function previously performed by a separate cap is merged into the package assembly structure itself. The first shell and support structure provide the sealing and protective functions, while the hinge rotation mechanism simultaneously performs both package opening and device assembly functions, eliminating the need for separate cap removal steps.
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3B
AI summary
A package assembly comprising a package and a medicament delivery device (7); wherein the medicament delivery device (7) is arranged within the package, the medicament delivery device (7) comprises a first subassembly (71) extending along a longitudinal axis (L) from a first end to a second end; and a second subassembly (72) extending along the longitudinal axis (L) from a first end to a second end; and wherein the package comprises: a first shell (1) comprising a first body (10), the first body (10) extending along the longitudinal axis (L) from a first end (11) to a second end (12) and defining a first chamber (13) inside the first body (10); wherein the first subassembly (71) is in the first chamber (13); a second shell (2) comprising a second body (20), the second body (20) extending along the longitudinal axis (L) from a first end (21) to a second end (22) and defining a second chamber (23) inside the second body (20); wherein the second subassembly (72) is in the second chamber (23); and wherein the second shell (2) is attached to the first shell (1) by a hinge arranged between the second end (22) of the second body (20) and the second end (12) of the first body (10);wherein the first shell (1) comprises a first pulling element (5) extending along the longitudinal axis (L) from a first end (51) to a second end (52); wherein the first subassembly (71) is attached to the first pulling element (5); wherein the first pulling element (5) is attached to the first body (10) by a hinge arranged between the first end (51) of the first pulling element (5) and the first body (10); and wherein the first pulling element (5) comprises a first gripper (52a) arranged at the second end (52) of the first pulling element (5); wherein the first gripper (52a) is axially fixed and pivotably attached to a counter first gripper (72b) arranged on the second subassembly (72).