Syringe With Regulated Independent Loading

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Solution Overview

Problem

Existing needleless syringes lack convenience in use due to variability in injection conditions based on the subject and purpose, making it difficult for users to ensure proper loading and operation for various injection modes.

Innovation Solution

A syringe design with independent loading of constituent portions (holding, driving, and nozzle) and a regulating mechanism to ensure correct assembly order, preventing errors and facilitating various injection modes with adjustable energy sources and nozzle configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the holding portion, driving portion, and nozzle portion are loaded into the housing independently, then the syringe can be assembled in a flexible manner, but loading errors may occur due to incorrect assembly order

Engineering Contradiction:
Improveflexible assemblyVSAvoidloading accuracy
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies preliminary action by providing regulating means (such as guide rails, positioning protrusions, or sequential loading mechanisms) that pre-establish the correct loading order of constituent portions. The regulating means ensures that the holding portion, driving portion, and nozzle portion are loaded in the proper sequence into the housing, preventing loading errors before they occur. This allows flexible independent loading while maintaining reliable assembly order through pre-designed guidance structures.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If multiple syringe housings are used for different injection modes, then various injection conditions can be met, but device complexity and maintenance burden increase

Engineering Contradiction:
Improveinjection mode varietyVSAvoidnumber of housings
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing a single syringe housing that can accommodate multiple types of constituent portions (different holding portions for various injection liquids, different driving portions for different energy sources, different nozzle portions for different injection patterns). The regulating means is designed to work with various combinations of these portions, allowing one housing to perform multiple injection functions. This eliminates the need for multiple specialized housings while maintaining the ability to meet various injection conditions through interchangeable constituent portions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS9555193B2Syringe
Publication Date: 2017.01.31 DAICEL CORP
  • US9555193B2 patent drawing
  • US9555193B2 patent drawing
  • US9555193B2 patent drawing

AI summary

A syringe includes a holding portion that accommodates an injection objective substance, a driving portion that applies injection energy, and a nozzle portion that includes a passage for injection, with these portions being loaded into a housing independently, whereby a state where the injection objective substance can be injected is established. The syringe includes a regulating means for regulating a loading position of the holding portion and the driving portion within the housing so that a loading state, where the holding portion and the driving portion are always loaded in the same order into the housing, is established for injection of the injection objective substance. Due to this, it is possible to facilitate injection of injection liquid ideal for various purposes and to improve user's convenience.