IV Workflow System Density Verification
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Solution Overview
Problem
Existing IV workflow management systems face challenges in accurately verifying the amount of fluid delivered to medication containers due to limitations in precision of density measurements and the lack of a repository for fluid density information, leading to difficulties in identifying discrepancies and their causes.
Innovation Solution
An IV workflow management system that determines an expected density of a fluid based on intended volume and mass, compares it to a set of densities from gravimetric verification systems, and verifies the accuracy of fluid delivery, identifies trends, and detects discrepancies, enabling quick correction and prevention of errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a repository of fluid density information is established to improve verification accuracy, then measurement precision improves, but device complexity increases
Solution Approach 1:
The patent combines multiple density determination approaches (manufacturer estimates, laboratory determinations, and gravimetric verification measurements) into a unified repository system. This merging allows the system to leverage existing information sources while adding automated verification capabilities, improving overall measurement precision without requiring complete system redesign
Solution Approach 2:
The repository system serves multiple functions: storing manufacturer-provided density estimates, capturing laboratory determination data, collecting gravimetric verification measurements, and providing density information to multiple gravimetric verification systems. This multi-functionality reduces the need for separate systems for each purpose
2Reliability
If gravimetric verification is implemented across multiple healthcare providers to improve verification reliability, then reliability improves, but loss of information increases due to aggregation difficulties
Solution Approach 1:
The system implements feedback loops where gravimetric verification measurements are collected from multiple healthcare providers, compared against expected values in the repository, and used to update and refine density information. This continuous feedback mechanism maintains verification reliability while preventing information loss through systematic data capture and analysis
Solution Approach 2:
The centralized repository acts as an intermediary between multiple gravimetric verification systems and the density information they require. It collects, standardizes, and distributes verification data, preventing information loss that would occur through direct aggregation while maintaining verification reliability across the network
3Manufacturing precision
If density measurements are performed with high precision to improve dose accuracy, then manufacturing precision improves, but loss of time increases due to laboratory determinations
Solution Approach 1:
The system performs preliminary density determinations using manufacturer estimates and laboratory measurements before clinical use, storing these results in the repository. This allows gravimetric verification systems to use pre-determined density values immediately, achieving high dose accuracy without requiring time-consuming laboratory determinations at the point of use
Solution Approach 2:
The system uses gravimetric verification measurements that are quick to perform and can be discarded after use, rather than relying on time-consuming laboratory density determinations for each measurement. The repository stores reusable density information that eliminates the need for repeated expensive/time-consuming laboratory analysis
Data Source
AI summary
A gravimetric verification system, method, and computer program product for automated detection and correction of reference density information based. An expected density of a fluid drug can be determined from the measured mass of a fluid drug and the intended volume of the fluid drug to be delivered to a medication container. The expected density can be compared to previously calculated densities for the fluid to verify the accuracy of a reference density value, verify the measurements and functional status of the measuring device for the fluid drug, and, in some instances, provide control or configuration commands to adjust one or more devices.