Medicament Training Device Audible Feedback Mechanism
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Solution Overview
Problem
Current medicament delivery training devices lack audible signal feedback to indicate the completion of medicament administration, which is crucial for proper training, especially for users administering drugs in areas where visibility is limited.
Innovation Solution
A medicament delivery training device is designed with a torsionally biased rotator and axially biased plunger rod, providing audible signals to mimic the experience of a MOLLY® auto-injector, including a click for commencement and a second signal for completion, along with a lockout mechanism for the needle cover, to simulate the administration process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a training device is used to teach drug administration, then users can learn proper administration techniques, but the training device lacks audible signal feedback to indicate completion of administration
Solution Approach 1:
The patent implements feedback means comprising a signal generator and signal output device that produce audible signals during plunger rod movement. The signal generator detects the position and movement of the plunger rod, and the signal output device provides audible feedback indicating the start and completion of medicament administration, thereby resolving the lack of information feedback in training devices
Solution Approach 2:
The training device replicates the operational sequence and feedback signals of the actual MOLLY® auto-injector. By copying the audible signal patterns and mechanical movements of the real device, the training device provides authentic training experience without requiring the actual medicament delivery system
2Ease of operation
If the needle cover is made movable between extended and retracted positions to simulate administration, then the device can demonstrate proper technique, but the mechanism becomes more complex
Solution Approach 1:
The needle cover is designed as a movable component that transitions between extended and retracted positions to simulate the actual administration process. This dynamic element allows users to practice the proper motion and timing of needle deployment and retraction, enhancing training capability while the complexity is managed through integration with the existing plunger rod mechanism
3Reliability
If the rotator is designed to rotate in multiple directions with locking mechanisms, then the device can provide tactile feedback, but the structural complexity increases
Solution Approach 1:
The rotator mechanism is segmented into distinct functional zones: a first rotational direction for providing tactile feedback during administration, and a second rotational direction for resetting. The locking mechanism is divided into separate engagement features that lock the rotator at specific positions, allowing complex functionality to be achieved through modular, segmented design rather than a monolithic complex mechanism
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 device effectively trains users to administer medicaments by providing the same tactile and auditory feedback as a MOLLY® auto-injector, ensuring proper drug administration techniques are learned, and can be reset for further training.
Implementation Method 1
a torsionally biased rotator received by the body (3), which rotator (23) is torsionally biased in a first rotational direction
Implementation Method 2
an axially biased plunger rod received by the rotator (23)
Implementation Method 3
the needle cover (5) is arranged to rotate the rotator (23) in a second rotational direction opposite to the first rotational direction during movement of the needle cover (5) from the extended position to the retracted position
Implementation Method 4
during axial movement the plunger rod (17) is arranged to engage with the rotator (23) to thereby displace the rotator (23) axially, and to allow rotation of the rotator (23) in the first rotational direction
Data Source
AI summary
The present disclosure relates to a medicament delivery training device comprising a body, a needle cover, a rotator that is torsionally biased, and a plunger rod. When the needle cover is moved from an extended position to a retracted position relative to the body, this linear motion is transformed into a rotational motion of the rotator which thereby releases the plunger rod. The plunger rod, which is biased, is thereby able to move axially. During axial motion of the plunger rod, the plunger rod is arranged to engage with the rotator to thereby displace the rotator axially, eventually resulting in a first angular distance rotation of the rotator. Upon release of the biased needle cover from the extended position, the rotator is allowed to rotate a second angular distance, thus obtaining a position which prevents the needle cover to move from the extended position towards the retracted position.