Multi-component Delivery System Micro Seal Assembly
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Solution Overview
Problem
Existing dual barrel syringes for multi-component materials face issues with premature mixing and leakage, necessitating improved sealing mechanisms to maintain separation and integrity during delivery.
Innovation Solution
A multi-component delivery system featuring a dual chamber applicator with a micro seal disposed within the applicator hub, which establishes separate fluid pathways for each component chamber using a micro seal that receives the interior cannula of the needle hub and mixing tube, ensuring secure separation and alignment of components during mixing and delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dual barrel syringes are used for multi-component materials, then component delivery is enabled, but premature mixing and leakage occur
Solution Approach 1:
The micro seal is disposed within the applicator hub, creating a nested structure where the seal is integrated inside the hub rather than being an external component. This nesting approach maintains reliable sealing while reducing overall device complexity and eliminating the need for separate external sealing mechanisms
Solution Approach 2:
The micro seal acts as an intermediary element between the component chambers and the needle assembly, providing a reliable sealing interface that prevents premature mixing and leakage without requiring complex sealing mechanisms in either the applicator or needle components
2Stability of the object's composition
If separate fluid pathways are established for each component chamber, then premature mixing is prevented, but device complexity increases
Solution Approach 1:
The micro seal creates nested fluid pathways within the applicator hub structure, where separate channels are integrated into the hub's internal geometry. This allows distinct fluid pathways for each component chamber while maintaining a compact, unified device structure rather than requiring separate external tubing or complex manifold arrangements
Solution Approach 2:
The applicator hub is segmented into separate fluid pathways that correspond to each component chamber, with the micro seal providing segmentation boundaries. This segmentation ensures component separation while integrating the pathways into a single cohesive hub structure, avoiding the need for complex external routing
3Ease of operation
If micro seal is disposed within applicator hub, then connection and disconnection is simplified, but manufacturing precision requirements increase
Solution Approach 1:
The micro seal is designed to be self-positioning within the applicator hub, where its elastic or compliant nature allows it to automatically seat and seal against the needle assembly or mixing tube upon insertion. This self-service mechanism simplifies connection operations while the integrated nesting design provides manufacturing tolerances that accommodate reasonable positioning variations
Data Source
AI summary
A system for mixing and delivering content is disclosed. The system includes an applicator, a needle assembly, and a micro seal. The applicator includes two component chambers separate from one another, each component chamber including at least one output port on a distal end thereof and an applicator hub disposed on a distal end of the applicator adjacent to the at least one output port of each component chamber. The needle assembly includes an elongate hollow stylet having a plurality of lumens therein and a needle hub having an interior cannula fluidly coupled to the elongate hollow stylet. The micro seal is disposed within the applicator hub. The micro seal is configured to receive the interior cannula of the needle hub to establish a fluid coupling between each of the two component chambers with a respective one of the lumens within the elongate hollow stylet.