Pressurized Gas Vial Transfer for Diluting and Reconstituting Medication
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Solution Overview
Problem
Existing injection devices require pre-filling with injectable medicament and lack efficient systems for transferring, diluting, or reconstituting medications, leading to high manufacturing costs and waste.
Innovation Solution
A pressurized gas powered transfer device with a vial elevator, vial spike, expansion chamber, and puncture tip for transferring liquid medication from a vial to an injection device, incorporating a vial holder, pressurized gas cartridge, and vent filter for mixing and diluting, reducing waste and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a transfer device is designed to transfer, dilute and/or reconstitute medication, then the functionality and versatility of the device is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions (transfer, dilute, reconstitute) into a single integrated device. The transfer device includes a vial holder, dilution chamber, reconstitution chamber, and injection device all integrated into one system, allowing a healthcare professional to perform multiple operations without switching between separate devices.
Solution Approach 2:
The device is designed as a universal system that can handle multiple medication preparation tasks. The same device can transfer medications, dilute concentrated formulations, and reconstitute lyophilized products, making it applicable to various medication types and clinical scenarios.
2Productivity
If pressurized gas is used to transfer medication from vial to injection device, then the transfer efficiency and speed is improved, but the manufacturing cost and waste increase
Solution Approach 1:
The patent employs pressurized gas (pneumatic system) to transfer medication from the vial to the injection device. The gas pressure drives the liquid medication through the transfer line, enabling rapid and efficient transfer without requiring complex mechanical pumps or multiple steps.
3Ease of operation
If a vial elevator mechanism is included to automatically position the vial, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The vial elevator mechanism is designed to automatically position the vial in the holder without requiring manual intervention. The system self-adjusts and positions the vial correctly, reducing the operational steps required from the healthcare professional and minimizing the risk of positioning errors.
4Productivity
If the device includes integrated mixing and diluting chambers, then the productivity and time efficiency is improved, but the manufacturing cost increases
Solution Approach 1:
The mixing and diluting chambers are integrated directly into the device structure, combining multiple functions in a single unit. This eliminates the need for separate mixing devices and reduces the overall time required for medication preparation, though it does increase manufacturing complexity.
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 system efficiently transfers, dilutes, or reconstitutes medications with lower waste and manufacturing costs, ensuring reliable operation and reduced environmental impact.
Implementation Method 1
pressurized gas cartridge positioned with the interior cavity of the expansion chamber
Implementation Method 2
A puncture tip is configured to puncture the pressurized gas cartridge when actuated by a user
Implementation Method 3
The vial spike is in fluid communication with the interior cavity of the expansion chamber and is configured to be in fluid communication with an injection device
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
A transfer device for transferring a medical fluid from a vial to a medical fluid injection device includes a vial holder where a vial spike positioned within the vial holder is configured to enter a vial containing a medical fluid when the vial is inserted into the vial holder. An expansion chamber having an interior cavity is in fluid communication with the vial spike. A pressurized gas cartridge is positioned with the interior cavity of the expansion chamber, while a puncture tip is configured to puncture the pressurized gas cartridge when actuated by a user. The vial spike is also configured to be in fluid communication with an injection device attached to the transfer device.