Multi-Chamber Parenteral Nutrition for Heat-Sterile Nutrient Stability
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Solution Overview
Problem
Existing parenteral nutrition formulations face stability and compatibility issues with vitamins and trace elements, particularly during terminal heat-sterilization, leading to the need for manual addition before administration, which increases the risk of errors and contamination.
Innovation Solution
A terminally heat-sterilized multi-chamber bag containing separate chambers for carbohydrates, amino acids, lipids, trace elements, and vitamins, ensuring stability and compatibility of all nutrients within the formulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vitamins and trace elements are added manually to parenteral nutrition formulations before administration, then the complete nutritional requirements can be met, but the risk of medication errors and contamination increases
Solution Approach 1:
The parenteral nutrition formulation is divided into multiple separate chambers within a single bag, with each chamber containing specific nutrients (macronutrients in some chambers, micronutrients including vitamins and trace elements in others). This segmentation prevents premature interaction between incompatible components while maintaining a ready-to-use single-bag system, thereby reducing handling steps and contamination risk compared to manual addition of separate supplements.
Solution Approach 2:
Multiple chambers containing different nutrient components are combined within a single parenteral nutrition bag. The chambers are separated by impermeable membranes during storage and transport, but can be mixed upon administration. This merging approach consolidates multiple components into one unit, eliminating the need for separate vials and manual addition steps while maintaining stability during storage.
2Adaptability or versatility
If trace elements and vitamins are compounded in the same bag, then all nutrients are provided in one formulation, but trace elements promote oxidation of vitamins
Solution Approach 1:
The formulation divides trace elements and vitamins into separate chambers that are physically isolated from each other during storage by impermeable membranes. This segmentation prevents direct contact between trace elements (which can catalyze oxidation) and vitamins (which are susceptible to oxidation), thereby maintaining chemical stability while allowing both components to be present in the same overall formulation.
Solution Approach 2:
An oxygen-scavenging package or antioxidant system acts as an intermediary between trace elements and vitamins. This intermediary component absorbs or neutralizes oxygen and free radicals that would otherwise facilitate oxidation reactions between trace elements and vitamins, allowing both to coexist stably in the same formulation.
3Reliability
If micronutrients are added via injection port or Y-connector, then the complete nutrient profile is achieved, but the number of handling steps and risk of errors increases
Solution Approach 1:
All necessary nutrient components including macronutrients, micronutrients (vitamins and trace elements), and electrolytes are merged into a single multi-chamber bag formulation. This eliminates the need for separate injection ports, Y-connectors, and multiple addition steps, thereby reducing preparation time and potential for dosing errors while maintaining complete nutritional coverage.
Solution Approach 2:
All micronutrients and other components are pre-compounded into the multi-chamber bag during manufacturing under controlled sterile conditions. This preliminary action ensures accurate dosing is built into the formulation itself, eliminating the need for manual measurement and addition steps at the point of care, thereby reducing both time and error risk.
4Stability of the object's composition
If separate containers are used for macronutrients and micronutrients, then stability is maintained, but the complexity of administration increases
Solution Approach 1:
The single parenteral nutrition bag is segmented into multiple independent chambers, each containing specific nutrient components. The chamber separators use impermeable membranes that maintain physical separation and stability during storage, while allowing for simple reconstitution upon administration. This segmentation provides stability benefits of separate containers while maintaining the simplicity of a single-bag system.
Solution Approach 2:
The multi-chamber bag design serves multiple functions: it maintains stability of individual components during storage like separate containers, provides a ready-to-use single-unit system like all-in-one formulations, and allows for flexible reconstitution options. Each chamber can be independently designed for optimal stability of its contents while the overall system provides comprehensive nutrition.
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
Provides a ready-to-use, stable parenteral nutrition product that meets clinical guidelines without manual addition of vitamins and trace elements, reducing medical risks and waste, and ensuring safe administration.
Implementation Method 1
a terminally heat-sterilized ready-to-use parenteral nutrition formulation comprising all macronutrients and micronutrients required to meet the clinical guidelines for parenteral nutrition, wherein all said micronutrients and macronutrients are provided in one multi-chamber bag (MCB)
Implementation Method 2
terminally heat-sterilized ready-to-use parenteral nutrition formulation
Data Source
AI summary
The present disclosure relates to a terminally heat-sterilized ready-to-use parenteral nutrition formulation comprising all macronutrients and micronutrients required to meet the clinical guidelines for parenteral nutrition, wherein all said micronutrients and macronutrients are provided in one multi-chamber bag (MCB). The disclosure is also directed to a parenteral nutrition formulation comprising all such macronutrients and micronutrients. More specifically, the present disclosure is directed to a MCB comprising at least five chambers containing a carbohydrate formulation in a first chamber, an amino acid formulation in a second chamber, a lipid formulation in a third chamber, a fourth chamber comprising a vitamin formulation and a fifth chamber comprising a trace element formulation, wherein the carbohydrate formulation, amino acid formulation and/or the lipid formulation may also contain certain vitamins and certain trace elements that can be stably accommodated therein.