Rotary Piston Pump Integrated Closure for Fluid Dispensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current injection devices for delivering medications, such as insulin and vaccines, face challenges in reliability, accuracy, and user comfort due to mechanical malfunctions, complexity, and the need for precise dosing, especially for patients requiring frequent administration.
Innovation Solution
A device featuring a collapsible container with a conveying device driven by a rotary piston pump, integrated into the closure piece, which simplifies the design by reducing fluid-tight connections and allowing for precise fluid delivery without valves, enhancing reliability and user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rotary piston pump is integrated into the closure piece, then the number of fluid-tight connections is reduced and reliability is improved, but the manufacturing complexity of the closure piece increases
Solution Approach 1:
The rotary piston pump is integrated directly into the closure piece, merging two previously separate components (pump and closure piece) into one unified structure. This eliminates the need for separate fluid-tight connections between these components, reducing connection points and potential failure sites, thereby improving reliability while the increased integration complexity is accepted as a trade-off.
2Reliability
If the conveying device is arranged fluidly between the interior and discharge opening, then the fluid delivery path is simplified and reliability is improved, but the integration complexity increases
Solution Approach 1:
The conveying device is integrated into the closure piece structure, merging the fluid transport function with the closure component. This creates a more direct and simplified fluid delivery path from the interior to the discharge opening, eliminating intermediate connections and improving reliability despite the increased integration complexity.
3Volume of moving object
If a collapsible container is used, then the device can be made more compact and portable, but the container requires additional structural features for collapse control
Solution Approach 1:
The container is designed to be collapsible, allowing it to change volume dynamically as fluid is dispensed. This enables the device to maintain a compact form factor when not in use while providing sufficient capacity when needed. The collapsible structure requires additional features like pleats or accordion folds, increasing structural complexity but enabling portability.
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 device provides a robust, reliable, and user-friendly method for precise fluid delivery, reducing the risk of mechanical malfunctions and improving the accuracy of medication administration, while being cost-effective and easy to produce.
Implementation Method 1
a conveying device (40) driven by a conveying drive for conveying the fluid from the interior (17) of the container (15)
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
The invention relates to a device (1) for dispensing a fluid, in particular to a patient, comprising a container (15), in particular an at least partly collapsible container, with an interior (17) for receiving the fluid. The container (15) comprises a closure piece (20) which is rigidly arranged in the container (15) in particular and on which a dispensing opening (24) is formed, wherein the fluid can be dispensed out of the interior (17) through said dispensing opening. The device (1) comprises a pump device (40) driven by a pump drive (50) in order to pump the fluid out of the interior (17) of the container (15). The invention is characterized in that the pump device (40) is fluidically arranged between the interior (17) and the dispensing opening (24) so that the fluid can be pumped out of the interior (17) to the dispensing opening (24) by the pump device (40).