Flexible Bag Fluid Container With Rigid Adapter
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Solution Overview
Problem
Existing fluid dispensing devices, such as nasal inhalers, require frequent recharging of mechanical energy storage after each dispensing action, which complicates user operation and acceptance.
Innovation Solution
A fluid container with a flexible bag and a rigid fastening adapter that provides a smooth and easy fluid withdrawal through suction, combined with a mechanical energy storage system that allows multiple doses to be dispensed without intermediate recharging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a mechanical energy storage is used for fluid dispensing, then the fluid can be dispensed through spray atomization, but the mechanical energy storage requires frequent recharging after each dispensing action
Solution Approach 1:
The mechanical energy storage is pre-loaded with sufficient energy to provide multiple dispensing actions without requiring recharging during the intended use period. This preliminary energy accumulation eliminates the need for frequent user intervention to recharge the energy storage mechanism.
Solution Approach 2:
The system is designed to provide continuous spray dispensing capability through a mechanical energy storage that maintains sufficient energy reserves for multiple doses. The energy storage mechanism is configured to deliver power continuously without interruption for recharging during the intended use period.
2Stability of the object's composition
If a rigid container is used for fluid storage, then the structure is stable, but the fluid withdrawal requires complex mechanisms
Solution Approach 1:
The fluid container employs a flexible bag made of elastomeric material that can be easily deformed to withdraw fluid through suction. This flexible membrane structure replaces complex rigid withdrawal mechanisms, allowing simple suction-based fluid removal while maintaining container stability through the flexible bag's inherent structural properties.
3Ease of operation
If a flexible bag is used for fluid storage, then the fluid withdrawal is smooth and easy, but the connection to the dispensing device requires precise sealing
Solution Approach 1:
A rigid fastening adapter serves as an intermediary component between the flexible bag and the dispensing device. This adapter provides a stable, precisely manufacturable connection interface that ensures reliable sealing with the dispensing device while allowing the flexible bag to maintain its simple suction-based withdrawal mechanism.
4Duration of action of moving object
If the flexible bag deforms as fluid is withdrawn, then the interior volume reduces smoothly, but the connection stability may be affected
Solution Approach 1:
The fluid container is divided into two functional segments: the flexible bag that deforms during fluid withdrawal to provide smooth, extended drainage, and the rigid fastening adapter that maintains stable mechanical and fluid-tight connections. This segmentation allows the flexible bag to deform freely for prolonged fluid removal while the rigid adapter ensures connection stability throughout the process.
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
The solution enhances user handling and acceptance by reducing the need for frequent recharging, allowing for precise, long-lasting, and liquid-proof fluid dispensing, and facilitating easy assembly and handling of the fluid container.
Implementation Method 1
enables a rather smooth and easy withdrawal of the fluid from the interior volume via the outlet shaft by way of suction
Implementation Method 2
the flexible bag may become subject to a respective deformation, in particular of its flexible side wall
Implementation Method 3
The rigid fastening adapter is configured and operable to establish a fluid tight connection between the fluid discharge mechanism of the fluid dispensing device and the outlet shaft of the fluid container
Implementation Method 4
a user may induce a spray dispensing of the fluid by depressing a trigger by way of which mechanical energy provided by the mechanical energy storage is released for the fluid dispensing
Implementation Method 5
The outlet orifice may be configured to atomize the fluid, e.g. by way of an atomizer provided in or on the outlet orifice
Data Source
AI summary
The present disclosure relates to a fluid dispensing device (10) and to a fluid container (110) for such a dispensing device (1), the fluid container (110) comprising:—a flexible bag (120) comprising a flexible sidewall (122), the flexible sidewall (122) extends along a longitudinal direction (z), confines an interior volume (123) to receive the fluid and forms a bag outlet (124) towards a distal end,—a rigid fastening adapter (112) sealingly engaged with the bag outlet (124) and comprising a hollow outlet shaft (113) in fluid communication with the interior volume (123),—wherein the rigid fastening adapter (112) comprises a fastening structure (114) for mechanical engagement with a corresponding counter fastening structure (134) of the fluid dispensing device (1) to establish a fluid-tight connection between the fluid discharge mechanism (130) and the outlet shaft (113).