Programmable Drug Infusion Controller with Dose Verification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing implantable drug infusion devices lack a simple external means to select and verify dosage amounts and intervals from a wide range, making it laborious and prone to errors for medical professionals to program complex dosing regimens.
Innovation Solution
A drug infusion system with a programmable controller that allows for basal and interval rates to be set for multiple time slots, determining and adjusting the total dose to ensure it does not exceed a maximum dose, and providing a graphical interface for easier programming and verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If each interval and delivery rate is individually programmed, then the dosing regimen can be precisely controlled, but the programming process becomes laborious and time consuming
Solution Approach 1:
The dosing regimen is divided into multiple time slots, with each slot allowing independent programming of delivery rates. This segmentation enables precise control over different intervals while providing a structured framework that simplifies the overall programming process compared to individual parameter entry.
Solution Approach 2:
The system performs preliminary calculations of total dose based on the programmed intervals and delivery rates before actual infusion begins. This allows the medical professional to verify the complete dosing regimen in advance and make adjustments before commitment, reducing programming time and errors.
2Manufacturing precision
If complex dosing regimens are programmed step by step, then accurate dosage control is achieved, but errors increase due to the painstaking programming steps
Solution Approach 1:
The system provides feedback by calculating and displaying the total dose based on programmed intervals and delivery rates. This feedback mechanism allows medical professionals to verify their programming decisions and detect potential errors before finalizing the dosing regimen, thereby improving reliability without sacrificing dosage accuracy.
Solution Approach 2:
The total dose calculation is performed in advance as a preliminary check before the dosing regimen is activated. This preliminary action enables verification of the complete program and identification of potential errors before they can cause harmful effects during actual drug delivery.
3Device complexity
If there is no external means to select and verify dosage amounts and intervals, then the device structure remains simple, but programming becomes prone to errors
Solution Approach 1:
The controller serves as an intermediary between the medical professional's programming inputs and the actual drug delivery mechanism. It automatically calculates total doses based on programmed parameters and provides verification, acting as a safety mediator that reduces programming errors without requiring complex external verification equipment.
Data Source
AI summary
A drug infusion system capable of delivering a fluid medication to a patient under direction of a medical professional continually at a basal rate and at an interval rate in each of a plurality of time slots over a specified period of time. The total dose of the fluid medication to be delivered to the patient over the period of time based on the basal rate and the interval rate for each of the plurality of time slots is determined, compared the total dose against a maximum dose. The basal rate is adjusted, if necessary, so that the total dose does not exceed the maximum dose.