Dosage Measurement System for Medicament Delivery
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Solution Overview
Problem
Current medicament delivery devices lack accurate dosage measurement capabilities, leading to potential inaccuracies in medicament administration, especially for self-administered treatments like insulin injections for diabetes, where patients need to manually track and monitor their doses.
Innovation Solution
A dosage measurement system integrated with medicament delivery devices, featuring a sensor unit to measure axial displacement of the dispensing member, such as a lead screw, and a processor to calculate the dispensed dosage, allowing for precise tracking and display of administered doses without requiring significant modifications to existing devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sensor unit and processor are added to measure axial displacement of the dispensing member, then dosage measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent replaces manual dosage tracking methods with an automated sensor-based measurement system. The sensor unit optically detects axial displacement of the dispensing member, and the processor automatically calculates dispensed dosage, eliminating the need for manual tracking and significantly improving measurement precision while accepting increased device complexity.
Solution Approach 2:
The dosage measurement system enables the device to automatically monitor and record its own dispensing actions. The sensor unit continuously tracks the position of the dispensing member, and the processor autonomously calculates and stores dosage information, allowing the device to self-monitor without external intervention.
2Reliability
If the sensor unit is integrated with the medicament delivery device, then measurement reliability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent integrates the sensor unit and processor directly into the medicament delivery device structure. The sensor unit is positioned to directly observe the dispensing member, and the processor is embedded within the device housing, creating a unified integrated system that ensures reliable measurement while requiring more complex manufacturing processes.
3Loss of information
If the sensor unit measures axial displacement of the dispensing member, then dosage information accuracy is improved, but loss of time in manual tracking is reduced
Solution Approach 1:
The sensor unit provides continuous real-time feedback on the axial position of the dispensing member during the dispensing process. The processor uses this feedback to continuously calculate and update the dispensed dosage information, ensuring high accuracy and eliminating the need for post-dispensing manual tracking.
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
Enables accurate and reliable measurement of medicament doses dispensed, enhancing patient compliance and reducing errors in self-administered treatments by providing real-time dosage information.
Implementation Method 1
the sensor unit is configured to transmit a signal such that said signal is reflected from the dispensing member, wherein the sensor unit is configured to detect said reflected signal
Data Source
AI summary
The disclosure relates to a dosage measurement system for a medicament delivery device. The medicament delivery device includes a medicament reservoir and a dispensing mechanism. The dispensing mechanism includes a dispensing member that is moveable axially to dispense medicament from the medicament reservoir. The dosage measurement system includes a sensor unit and a processor. The sensor unit is configured to measure the axial displacement of the dispensing member. The processor is configured to determine a dosage dispensed from the medicament reservoir based on the measured axial displacement of the dispensing member.