Medication Delivery Dose Button With Rotational Sensing
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Solution Overview
Problem
Existing medication delivery devices lack an automated system to accurately detect and record the amount of medication delivered during an injection event, requiring manual tracking by the user.
Innovation Solution
An electronic dose detection system is integrated into the medication delivery device, comprising a sensor and controller to detect relative rotational movement between dose-setting and actuator assemblies, determining the amount of medication delivered based on angular displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an automated sensing system is integrated into the medication delivery device, then dose detection accuracy is improved, but device complexity increases
Solution Approach 1:
The electronics assembly including the sensor is nested within the compartment defined by the dose button support and cap. This integration allows the sensing system to be housed within existing device boundaries without requiring separate external components, thereby improving dose detection accuracy while minimizing the increase in overall device complexity.
Solution Approach 2:
The sensor serves multiple functions: it detects the rotational position of the tubular body to determine dose amount, and the electronics assembly processes this information for automated recording. This multi-functionality approach improves measurement precision while reducing the need for additional separate components that would increase device complexity.
2Extent of automation
If a sensor and controller are integrated into the dose button compartment, then automated dose detection is achieved, but manufacturing complexity increases
Solution Approach 1:
The device is segmented into distinct functional modules: the dose button with its support and cap forming a compartment, the electronics assembly as a separate integratable unit, and the tubular body as an independent rotating component. This segmentation allows each module to be manufactured separately using standard processes, then assembled together, achieving automated dose detection while maintaining ease of manufacture through modular assembly.
Solution Approach 2:
The electronics assembly is nested within the compartment formed by the dose button support and cap. This nested configuration allows the sensing components to be integrated into the existing dose button structure, enabling automated dose detection without requiring complete redesign of the manufacturing process for the entire device.
3Ease of operation
If manual tracking is eliminated in favor of automated detection, then user convenience is improved, but device complexity increases
Solution Approach 1:
The medication delivery device performs self-monitoring through the integrated sensor that automatically detects and records the dose amount delivered. The system serves itself by autonomously tracking medication delivery without requiring user intervention for manual recording, thereby improving user convenience while the complexity is contained within the self-service mechanism rather than requiring additional external systems.
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 system provides accurate and automated dose detection, allowing users to track medication delivery without manual record-keeping, and offers features like medication level alerts and device location assistance.
Implementation Method 1
an electronics assembly including a sensor configured to sense rotation of the tubular body
Data Source
AI summary
Medication delivery devices are provided having a dose delivery sensing capability. A dose button includes a support and a cover that at least partially encloses an electronics assembly including a sensor for detecting rotation of a component during dose delivery to determine a dosage of delivered medication. The electronics assembly includes a controller for receiving a signal from the sensor. The medication delivery device may be configured to communicate dosage delivery information to an external device.