Container Carrier Rotator Assembly for Secure Medicament Locking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing medicament delivery devices face challenges in providing a simple and reliable assembly for receiving medicament containers that enables easy operation and reliable medicament delivery.
Innovation Solution
A medicament delivery device comprising a container carrier with flexible arms and a rotator that allows for secure locking of the medicament container, combined with a cassette that includes a container cover and a biasing member for activating the medicament expulsion mechanism through a distal movement, and a base unit with an electric drive arrangement for multiple uses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a base unit with resettable drive mechanism and disposable cassette are used, then medicament delivery can be reused multiple times, but the device complexity increases due to the need for connection and disconnection operations
Solution Approach 1:
The device is divided into two separate parts: a reusable base unit containing the drive mechanism and a disposable cassette containing the medicament container. This segmentation allows the complex drive mechanism to be resettable and reusable while the cassette can be easily replaced, resolving the contradiction between reusability and complexity by distributing functions across separate components.
Solution Approach 2:
The cassette is designed as a disposable component that is replaced after use, while the expensive base unit with complex drive mechanism is reused. This allows the system to maintain high reusability for the base unit while simplifying the connection mechanism since the disposable cassette has simpler structural requirements.
2Reliability
If flexible carrier arms with engaging structures are used, then secure locking of medicament container is achieved, but the manufacturing precision requirements increase
Solution Approach 1:
The carrier arms are made flexible and can elastically deform during the locking process. This flexibility compensates for minor variations in manufacturing precision of the engaging structures, allowing reliable locking without requiring extremely tight tolerances. The flexible arms can adapt to slight dimensional variations while still achieving secure engagement.
Solution Approach 2:
The locking mechanism utilizes elastic deformation of the flexible carrier arms as a key parameter. By changing the physical state of the arms from rigid to flexible, the system achieves reliable locking through elastic recovery rather than relying solely on precise geometric fitting, thereby reducing manufacturing precision requirements.
3Reliability
If a rotator mechanism is added to the container carrier, then the medicament container can be securely locked in multiple positions, but the device complexity increases
Solution Approach 1:
The rotator mechanism is integrated directly into the container carrier structure, merging the positioning function with the existing carrier. This combination achieves multiple positioning capabilities without adding a completely separate mechanism, thereby limiting the increase in device complexity while maintaining positioning reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a simple, reliable, and efficient medicament delivery system that allows for easy attachment and detachment of disposable cassettes, ensuring secure locking and reliable medicament expulsion with minimal user interaction.
Implementation Method 1
The biasing member is arranged to force the container cover in a proximal direction relative to the housing
Implementation Method 2
a flexible carrier arm extending from the carrier body substantially parallel with the longitudinal axis
Data Source
AI summary
An assembly for receiving a medicament container having a container carrier extending along a longitudinal axis, the container carrier having a carrier body, and a flexible carrier arm extending from the carrier body substantially parallel with the longitudinal axis; and a rotator comprising a hollow rotator body and a through hole which extends substantially parallel with the longitudinal axis, wherein the container carrier is arranged to receive the rotator such that the carrier arm extends through the through hole, and wherein the rotator is arranged to rotate about the longitudinal axis and relative to the container carrier. A cassette and a medicament delivery device are also provided.