Syringe-Connector Device for Sequential Multi-Product Injection
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Solution Overview
Problem
Current solutions for reducing the number of injections in medical treatments are limited, as they often require fixed ratios of combined treatments, are bulky, or pose risks of cross-contamination, and do not adapt well to individual patient needs or varying treatment requirements.
Innovation Solution
A syringe-connector device that allows for the sequential administration of multiple injectable products through a single needle without mixing, using a hollow plunger and solid plunger mechanism to maintain product separation and adjust doses and ratios as needed, compatible with standard injection devices and procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple injections are performed separately, then each product can be administered at the correct dose, but the number of injections and skin punctures increases
Solution Approach 1:
The patent combines multiple injection operations into a single injection procedure by using a connector device that links multiple syringes to a single needle, allowing sequential administration of multiple products through one skin puncture while maintaining separate product streams
Solution Approach 2:
The device segments the injection system into separate product pathways, with each syringe maintaining its own sealed environment while connecting to a common needle through a multi-port connector, enabling independent dose control for each product
2Productivity
If injectable products are mixed together, then a single injection can deliver multiple treatments, but cross-contamination and incompatibility risks increase
Solution Approach 1:
The connector device acts as an intermediary between multiple syringes and a single needle, providing separate sealed pathways for each product that prevent mixing and cross-contamination while enabling simultaneous administration through one injection site
Solution Approach 2:
The invention extracts the mixing function from the injection system by maintaining separate sealed pathways for each product throughout the administration process, eliminating the risk of chemical incompatibility and cross-contamination that would result from pre-mixing
3Productivity
If a single injection device is used for multiple products, then the number of punctures is reduced, but the device becomes more complex
Solution Approach 1:
The connector device provides a universal interface that can accommodate multiple syringes of different types and a single needle, creating a multi-functional system that reduces punctures without requiring custom-designed complex injection devices for each product combination
4Adaptability or versatility
If multiple syringes are connected to a single needle, then variable doses of multiple products can be administered, but the risk of infection and asepsis maintenance increases
Solution Approach 1:
The system allows preliminary connection and preparation of multiple syringes to the connector device before the actual injection, enabling all necessary connections to be established in a controlled manner while maintaining sterile barriers until the moment of injection
Data Source
AI summary
The invention relates to a syringe-connector device comprising, in particular, a hollow plunger including an open inner channel, which plunger can move inside a reservoir, said reservoir being open at one end in a distal connection, for the separate administration of controlled quantities of at least two products in a single injection.