Administration Device With Variable Rigidity Sealing Region
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Solution Overview
Problem
Existing administration devices are often limited to a specific type of administration, requiring multiple devices for different applications and facing challenges such as dose accuracy issues and contamination risks during needle insertion, with complex production processes.
Innovation Solution
A flexible administration device comprising a base body made from connected film sections with varying rigidity, allowing for controlled discharge of substances through a spout adapter, which can be optimized for various administration methods without additional components like needles, ensuring sterility and efficient production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a needle device is inserted into the outlet opening for injection, then subcutaneous, intravenous, or intradermal injection can be performed, but there is a risk of substance escape and contamination, and the manufacturing process becomes complex
Solution Approach 1:
The patent introduces a sealing membrane as an intermediary component between the chamber and the outlet opening. This membrane allows needle insertion for injection while maintaining sealing integrity, preventing substance escape and contamination. The membrane acts as a controlled interface that enables both direct administration and needle-based injection without compromising reliability.
Solution Approach 2:
The outlet opening structure is segmented into multiple functional zones: a rigid region providing structural support, a less rigid region allowing controlled detachment during compression, and a sealing membrane for needle insertion. This segmentation allows each region to perform its specific function while maintaining overall system reliability and versatility.
2Stability of the object's composition
If the connection is made rigid to remain connected during chamber compression, then structural stability is improved, but the substance cannot be discharged through the connection
Solution Approach 1:
The connection is designed with non-uniform rigidity distribution: a rigid region near the outlet opening provides stability and maintains connection integrity, while a less rigid region between the chamber and outlet opening allows controlled detachment during compression. This local quality variation enables both connection stability and effective substance discharge through the outlet opening.
3Adaptability or versatility
If multiple alternative administration devices are provided for different administration methods, then versatility is improved, but device complexity and cost increase
Solution Approach 1:
The chamber design integrates multiple administration capabilities into a single device. The outlet opening can accommodate both direct application (without needle) and needle-based injection through the sealing membrane. The spout adapter can be configured for different administration routes (oral, topical, injection), making one chamber design universally applicable for multiple administration methods, eliminating the need for separate devices.
4Ease of operation
If the sealing membrane is punctured during needle insertion, then injection is enabled, but contamination of the administered substance can occur
Solution Approach 1:
The sealing membrane serves as a sterile barrier that is punctured by the needle in a controlled manner. The needle pierces the membrane to enter the chamber, and the membrane's rupture is designed to occur only at the needle insertion point, maintaining sterility of the rest of the system. This intermediary structure enables needle insertion while minimizing contamination risk through controlled breach of the barrier.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise, hygienic, and cost-effective administration of medications in different forms, with flexible material selection and simplified production, reducing contamination risks and ensuring accurate dosing.
Implementation Method 1
the substance can be discharged or dispensed from the administration device through the outlet opening by compressing the chamber
Data Source
Figure 1~3
Figure 4
AI summary
An administration device (1) comprises a main body (2), which has an outlet opening (24) and a chamber (22) for accommodating a flowable substance intended for administration. The main body is produced from a first film portion (21) and a second film portion (23) connected to the first film portion (21) and is designed such that the substance can be dispensed through the outlet opening (24) by squeezing the chamber (22). The administration device also comprises a spout adapter (3) connected tightly to the outlet opening (24) and having a connector (31). The connection (4) of the first film portion (21) to the second film portion (23) seals the chamber (22) and has a plurality of regions. The plurality of regions of the connection (4) comprise a firmer region (41) and a less firm region (42) arranged between the chamber (22) and the outlet opening (24). The less firm region (42) of the connection (4) is designed to detach when the chamber (22) is squeezed in order to dispense the substance through the outlet opening (24). The firmer region (41) of the connection is designed to remain connected when the chamber (22) is squeezed in order to dispense the substance through the outlet opening (24). By squeezing the chamber (22), the substance can be dispensed virtually exclusively through the outlet opening (24) and through the connector (31) of the pouring adapter (3).