Multi-lumen Ampoule Dispensing Device for Analytic Reference Materials
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Solution Overview
Problem
Existing methods for dispensing analytic reference materials, such as glass ampoules and syringes, face challenges like difficulty in opening, contamination risk, time-consuming emptying, and user error due to chemical incompatibilities and the need for multiple ampoules, which can lead to inaccurate chemical analysis.
Innovation Solution
A multi-lumen ampoule device with separate storage lumens for chemically incompatible compounds, each sealed with gaskets that move into gasket seats to combine and exit through a mixing channel, allowing for simultaneous dispensing of multiple liquids as a single mixture, reducing user steps and error.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple chemically incompatible compounds are placed in the same ampoule, then the number of ampoules is reduced, but the compounds undergo denaturing and degradation
Solution Approach 1:
The single ampoule is segmented into multiple separate storage lumens (first, second, third storage lumens) that are physically isolated from each other. Each lumen can contain chemically incompatible compounds without interaction, while still being part of a single integrated ampoule structure. The mixing tip includes separate channels for each lumen that remain isolated until the mixing zone.
Solution Approach 2:
Multiple storage lumens are nested within the single ampoule body, with each lumen containing its own compound. The lumens are arranged concentrically or adjacently within the ampoule structure, allowing multiple separate compartments to exist within one outer container. The mixing tip channels are similarly nested within the tip structure.
2Reliability
If multiple ampoules are used to store chemically incompatible compounds, then chemical stability is maintained, but the time to combine contents increases
Solution Approach 1:
Multiple storage lumens containing different compounds are merged into a single ampoule structure, yet remain physically separated. The mixing tip merges the contents of all lumens into a single mixed solution that is dispensed through one needle, combining the functionality of multiple ampoules into one unit.
Solution Approach 2:
The compounds are pre-loaded into separate storage lumens during manufacturing, with each lumen already containing the correct compound. The gaskets are pre-positioned to seal each lumen. When needed, the user simply activates the mixing mechanism which automatically combines all pre-prepared components.
3Reliability
If multiple ampoules are used for analytic reference materials, then chemical incompatibility is avoided, but user error during combination increases
Solution Approach 1:
The device merges multiple storage lumens into a single integrated system where the mixing tip automatically combines all compounds in the correct proportions. The single needle dispenses the pre-mixed solution, eliminating the need for users to manually combine multiple ampoules and reducing errors in mixing ratios.
Solution Approach 2:
The mixing tip performs the mixing function automatically when activated. The gaskets are self-actuating, moving to seal or unseal lumens based on pressure changes. The system self-regulates the mixing process without requiring user intervention for combining multiple components.
4Reliability
If glass ampoules are used for storage, then chemical stability is maintained, but the risk of glass breakage and contamination increases
Solution Approach 1:
The ampoule is constructed as a composite structure with an outer housing and internal storage lumens that can be made from materials resistant to breakage. The mixing tip and needle assembly integrates multiple materials to provide both chemical compatibility and mechanical durability, eliminating the fragility of traditional glass ampoules.
Solution Approach 2:
The storage lumens within the ampoule can be constructed with flexible or resilient walls that resist shattering. The gaskets used to seal the lumens are made from flexible elastomeric materials that can deform without breaking, providing a non-fragile sealing mechanism compared to traditional glass stoppers.
5Ease of operation
If pre-filled syringes are used for multiple liquids, then dispensing is simplified, but the ability to release multiple liquids simultaneously is limited
Solution Approach 1:
The single ampoule is segmented into multiple independent storage lumens, each capable of dispensing its own liquid through separate channels in the mixing tip. This segmentation allows each lumen to function independently while maintaining the simplicity of a single ampoule structure, enabling simultaneous release of multiple liquids.
Solution Approach 2:
The ampoule structure serves multiple functions: it stores multiple different compounds in separate lumens, provides individual sealing for each lumen via gaskets, enables independent control of each compound's release, and combines all liquids into a single mixed solution for dispensing. The mixing tip similarly performs multiple functions with its integrated channels.
Data Source
AI summary
A dispensing device is disclosed having an ampoule with at least four storage lumens extending axially along the length of an ampoule body, a mixing tip coupled to a distal end of the storage lumens, the mixing tip having at least four gasket seats formed therein, each gasket seat corresponding to one of the storage lumens, and an outlet lumen in fluid communication with the storage lumens.