Ambulatory Infusion Device Bolus Delay Module
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Solution Overview
Problem
Ambulatory insulin infusion systems face challenges in providing discreet and convenient operation, particularly during mealtime, as current systems require immediate blood glucose measurement and programming of insulin bolus, which can be inconvenient and draw attention in public settings.
Innovation Solution
The system allows for pre-meal data collection and bolus determination, with a delay module that triggers insulin administration at a therapeutically significant time, enabling users to perform operational steps at a convenient time and location before the meal, improving discretion and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If immediate blood glucose measurement and bolus programming is required, then insulin administration timing accuracy is improved, but user convenience and discretion are worsened
Solution Approach 1:
The system allows users to perform blood glucose measurement, meal carbohydrate entry, and bolus programming in advance before the actual meal time. The delay module then holds the programmed bolus until the appropriate time for administration, enabling all operational steps to be completed discreetly before eating while ensuring timely insulin delivery.
2Reliability
If bolus is administered immediately after data collection, then therapeutic effectiveness is improved, but user discretion and privacy are worsened
Solution Approach 1:
Users can complete all necessary data collection and bolus programming steps before the meal in a private setting. The delay module then ensures the bolus is administered at the therapeutically appropriate time, maintaining both user discretion and therapeutic effectiveness.
Solution Approach 2:
The delay module acts as an intermediary between the data collection/bolus programming phase and the actual insulin administration. It receives the programmed bolus parameters, holds them until the appropriate time, and then triggers administration, thereby mediating between user convenience and therapeutic timing requirements.
3Reliability
If all operational steps are performed at the time of meal, then treatment accuracy is improved, but device accessibility and user comfort are worsened
Solution Approach 1:
The system enables users to perform blood glucose measurement, meal data entry, and bolus programming in advance when in a comfortable, private setting. The delay module ensures these pre-programmed actions are executed at the correct time, maintaining treatment accuracy while improving device accessibility and user comfort.
Data Source
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AI summary
Disclosed are ambulatory insulin infusion systems, including: a) an administration module (2.5, 2.8) for subcutaneous insulin administration, the administration module (2.5, 2.8) being designed to subcutaneously administer insulin according to a basal profile continuously and additional a bolus on demand, the bolus having a bolus amount, b) a data collection module (1.1, 1.2, 1.3, 1.6, 1.7) for collecting data relevant for the bolus amount, the data collection module (1.1, 1.2, 1.3, 1.6, 1.7) being operatively coupled to the administration module (2.5, 2.8), In accordance with the invention, the system further includes a delay module (2.7), the delay module (2.7) being designed to trigger a start of the bolus administration a therapeutically significant delay interval after the collection of the data.