Medicament Container Adapter Assembly for Standardized Injector Housing
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Solution Overview
Problem
The varying properties of different medicaments make it difficult to achieve mass production of medicament delivery devices with standardized components, increasing costs and reducing affordability for patients.
Innovation Solution
A sub-assembly for medicament delivery devices comprising a housing, an adapter, and a delivery member holder assembly, which accommodates medicament containers of varying dimensions and volumes, allowing for standardized components that can be assembled efficiently, including a retainer and a delivery member hub for fluid communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If medicament delivery devices are customized for different medicament properties, then the device can accommodate various medicaments with different properties, but the production cost increases and mass production becomes difficult
Solution Approach 1:
The housing is designed with a universal accommodation capability to hold medicament containers of different dimensions and volumes. The adapter body provides a standardized interface that can adapt to various container types, allowing a single device design to serve multiple medicament formulations without requiring custom manufacturing for each medicament type.
Solution Approach 2:
The device is divided into modular components including the housing, adapter body, and delivery member holder assembly. This segmentation allows the standardized housing and adapter to be mass-produced, while only the delivery member needs to be customized for specific medicament types, thereby reducing overall manufacturing complexity and cost.
2Ease of manufacture
If standardized components are used in medicament delivery devices, then mass production becomes feasible and costs are reduced, but the device must accommodate varying medicament container dimensions
Solution Approach 1:
The adapter body acts as an intermediary component between the standardized housing and medicament containers of varying dimensions. It provides a universal interface that accommodates different container sizes and shapes while maintaining consistent connection to the delivery member holder assembly, enabling standardized manufacturing without sacrificing adaptability.
Solution Approach 2:
The delivery member holder assembly is designed to be movable relative to the housing, allowing adjustment to accommodate different medicament container configurations. This dynamic capability enables the standardized device to adapt to various container dimensions while maintaining efficient assembly processes.
3Device complexity
If the delivery member is kept spaced apart from the medicament container, then the device structure is simplified, but fluid communication cannot be established for medicament delivery
Solution Approach 1:
The delivery member holder assembly is designed to move between a retracted position (spaced apart from the container) and an advanced position (establishing fluid communication). This dynamic positioning mechanism allows the device to maintain simplicity when fluid communication is not needed while ensuring reliable connection when delivery is required, balancing structural simplicity with functional reliability.
Data Source
AI summary
The present disclosure provides a sub-assembly of a medicament delivery device, the sub-assembly including a housing extending along a longitudinal axis between a distal end of the housing and a proximal end of the housing. The housing is configured to accommodate a first medicament container with a first dimension and a first volume. The sub-assembly further includes an adapter comprising an adapter body extending in the direction of the longitudinal axis from a distal end of the adapter to a proximal end of the adapter. The adapter body is arranged within the housing, and the adapter body is configured to accommodate a second medicament container dimensioned differently from the first dimension and capable of containing no more than the first volume of a medicament. The adapter body is configured to operably retain the second medicament container within the housing so that the second medicament container is radially immovable within the housing.