Medicament Delivery Guard Locking With Rotator and Guide Track
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Solution Overview
Problem
Existing medicament delivery devices lack robust safety mechanisms to prevent accidental activation or damage to the medicament delivery member before, during, and after use.
Innovation Solution
A safety device with a housing, a medicament delivery member guard, a biasing element, and a rotator that locks the guard in a final position using a protrusion and stop member mechanism to prevent accidental distal movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a safety device is added to prevent injury and contamination, then protection reliability is improved, but device complexity increases
Solution Approach 1:
The safety device merges multiple protective functions into a single integrated mechanism. The guard combines the medicament delivery member protection, the rotator with protrusion for locking, and the stop member with guide track all in one component assembly, reducing overall device complexity while maintaining comprehensive protection
Solution Approach 2:
The guide track acts as an intermediary element between the guard and the housing, providing a controlled path for the protrusion to engage with the stop member. This intermediary mechanism enables reliable locking without requiring complex direct engagement structures
2Stability of the object's composition
If a locking mechanism with rotator and stop member is implemented, then guard stability is improved, but device complexity increases
Solution Approach 1:
The locking mechanism transitions from a static fixed position to a dynamic system where the rotator can rotate to different positions. The protrusion moves along the guide track and engages with the stop member at specific positions, providing dynamic control over the guard's locked state while maintaining stability when locked
Solution Approach 2:
The guide track is pre-configured with an inclined section that guides the protrusion into engagement with the stop member before the guard reaches its final position. This preliminary guiding action ensures stable locking is achieved automatically during the guard's movement without requiring additional complex control mechanisms
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 effectively locks the medicament delivery member guard in place after use, preventing injury or contamination, and ensuring the medicament delivery member is protected throughout the delivery process.
Implementation Method 1
a biasing element arranged between a distally directed support surface of the medicament delivery member guard and a proximally directed support surface of the housing
Data Source
AI summary
A safety device for a medicament delivery device having a housing, a medicament delivery member guard in the housing being rotationally fixed and axially movable relative to the housing, a biasing element, and a rotator arranged within the housing that rotates relative to the housing between an initial unlocked position and a final locked position, wherein the medicament delivery member guard has a guide track and a stop member, the guide track has an inclined section configured to cause rotation of the rotator, where the rotator has a protrusion configured as a stop surface, where in an initial unlocked position the protrusion is arranged in the guide track and where in a final locked position the rotator is rotated with respect to the position of the medicament delivery member guard, and wherein in the final locked position the medicament delivery member guard is locked against distal movement relative to the housing.