Dose Deviation Indication Unit for Administration Device
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Solution Overview
Problem
Existing insulin administration devices often result in user errors due to manual dose entry, leading to unintended over or under administration of insulin, and previous solutions have resulted in complex, bulky, and expensive electromechanical systems.
Innovation Solution
A device with a manually operated dose setting mechanism and an electronic indication unit that displays the relation between the administered dose and the target dose, using a rotatable dose setting knob, encoder, and electronic components like microcontrollers and LCD displays to ensure accurate dose administration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual dose entry is used, then device simplicity is maintained, but user errors occur leading to unintended over or under administration
Solution Approach 1:
The patent implements a feedback mechanism where the electronic indication unit continuously displays the relationship between the currently set dose and the target dose. This real-time feedback allows users to verify dose settings before administration, preventing unintended over or under administration while maintaining manual operation simplicity.
Solution Approach 2:
The patent replaces complex electromechanical automated dose setting systems with a simpler electronic indication system that works alongside manual dose setting. Instead of using motors, sensors, and complex control mechanisms for automated setting, the invention uses electronic displays to provide guidance and confirmation for manually set doses.
2Reliability
If automated dose setting with external display apparatus is implemented, then dose accuracy is improved, but device becomes bulky and complex
Solution Approach 1:
The patent merges the indication unit directly into the administration device housing, combining the electronic display, processor, and control circuitry with the existing manual dose setting mechanism. This integration eliminates the need for separate external display apparatus while maintaining dose accuracy verification capabilities.
Solution Approach 2:
The patent extracts only the essential indication functionality from complex automated systems, implementing a simplified electronic indication unit that provides dose verification without requiring the full complexity of automated dose setting systems including motors, sensors, and sophisticated control algorithms.
3Reliability
If automated dose setting drive is integrated, then user errors are reduced, but device becomes expensive and complex
Solution Approach 1:
The patent substitutes electromechanical automated dose setting drives with a simpler electronic indication system that works with the existing manual dose setting mechanism. Instead of using motors, gears, and complex control circuits to automatically set doses, the invention uses electronic displays to guide and confirm manually set doses, significantly reducing electromechanical complexity.
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 prevents unintended dose deviations by providing real-time visual, auditory, and tactile feedback, ensuring the administered dose aligns with the target dose, thus enhancing user safety and comfort.
Implementation Method 1
an encoder is provided in especially preferred embodiments, the encoder transferring the rotation of the dose setting knob in to an electrical signal, the electrical signal being indicative for the administration dose amount AD
Data Source
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Figure 2
Figure 3a~3b
AI summary
Administration device for the administration of a liquid drug in adjustable doses, comprising: a) an injection unit (8), the injection unit (8) comprising • a manually operated dose setting means (5), wherein operating the manually operated dose setting means (5) sets an administration dose amount AD, and • a manually driven dosing mechanism (6), b) an electronic indication unit (25, 30), the indication unit (25, 30) indicating the relation between the administration dose amount AD and a target dose amount TD, the target dose amount TD being a dose amount that is intended for administration, the target dose amount TD being transmitted to the administration device from an external device via a data interface of the administration device or being calculated by a dose calculator of the administration device based on therapy-related data or being stored in the administration device as several alternative values for manual or automatic selection.