Integrated Puncture Needle Adapter for Self-Administration

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Solution Overview

Problem

Conventional methods for self-administering drug solutions are cumbersome, prone to contamination, and risk leakage due to the need to replace adapters and injection needles, and require separate priming of the needle during administration.

Innovation Solution

An integrated puncture needle adapter that connects a drug storage container to a syringe, allowing for the preparation and administration of a drug solution without the need to detach components, using a separable part that exposes the needle for injection while maintaining liquid-tightness until separation, reducing waste and simplifying the process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the adapter and injection needle are replaced separately during drug administration, then the syringe can be used for both dissolving and administering the drug, but the process becomes troublesome and increases the risk of misuse and contamination

Engineering Contradiction:

Improveversatility of syringeVSAvoidoperational complexity

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The adapter and injection needle are merged into a single integrated puncture needle adapter assembly. The adapter body includes an adapter portion that connects to the syringe and a needle accommodating portion that houses the injection needle. This integration eliminates the need for separate attachment and detachment operations, reducing operational complexity while maintaining versatility for both drug dissolution and administration through the same syringe system.

Inventive Principle:

Principle #5Merging (Combining)

2Adaptability or versatility

If the adapter and injection needle are replaced separately, then the syringe can serve multiple functions, but there is a risk of leakage and contamination during change-over

Engineering Contradiction:

Improvemulti-functionalityVSAvoidrisk of leakage and contamination

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

By combining the adapter and injection needle into one integrated assembly with continuous liquid-tight seals, the invention eliminates the multiple connection and disconnection operations that create leakage and contamination risks. The adapter body maintains liquid-tight sealing throughout the entire process from drug dissolution to administration.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The injection needle is nested within the needle accommodating portion of the adapter assembly. The needle hub is received within the adapter body, and the needle is held in a ready position within the accommodating portion. This nested structure protects the needle tip and maintains a sealed environment, preventing contamination while keeping the needle ready for immediate use.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Adaptability or versatility

If separate adapter and needle replacement is performed, then the syringe can be reused, but priming of the injection needle is needed which is bothersome

Engineering Contradiction:

Improvereusability of syringeVSAvoidpriming requirement

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The injection needle is pre-positioned within the needle accommodating portion of the adapter assembly in a ready state before drug administration. The needle is held in place with its tip exposed and ready for immediate insertion into the patient, eliminating the need for separate priming operations. The integrated design ensures the needle is prepared in advance as part of the adapter assembly.

Inventive Principle:

Principle #10Preliminary action

4Ease of manufacture

If the adapter and injection needle are used separately, then each component can be optimized for its specific function, but the overall process becomes more complex and time-consuming

Engineering Contradiction:

Improvecomponent optimizationVSAvoidprocess efficiency

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The adapter and injection needle are manufactured as an integrated assembly where the adapter body includes both the adapter portion for syringe connection and the needle accommodating portion for needle housing. This merging maintains the functional optimization of each component while significantly improving process efficiency by eliminating multiple separate operations.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated puncture needle adapter assembly serves multiple functions: it acts as the adapter for connecting the syringe during drug dissolution, houses and protects the injection needle, and provides the needle for drug administration. This multi-functionality reduces the number of separate components and operations needed, improving productivity without sacrificing component optimization.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS9387150B2Integrated puncture needle adapter

Publication Date: 2016.07.12 TERUMO KK

AI summary

The integrated puncture needle adapter is equipped with: a puncture needle; a needle hub; a tubular fixing part for fixing the needle hub; a tubular puncture needle accommodating part provided on a distal side of the tubular fixing part and having therein an accommodating space for accommodating the puncture needle; a second connecting part provided on a distal side of the puncture needle accommodating part; and a separable part which is formed between the tubular fixing part and the puncture needle accommodating part. A part on the distal side of the separable part is separable from a part on the proximal side of the separable part. The puncture needle is exposed when separated.