Peristaltic Pump Dampener for Stable Pharmaceutical Flow
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Solution Overview
Problem
Peristaltic pumps exhibit pulsations in flow rate, making them unsuitable for applications requiring smooth and consistent flow, particularly in the production and mixing of pharmaceutical compositions like RNA and lipid formulations, which are sensitive to flow dynamics.
Innovation Solution
Incorporating a dampener into the peristaltic pump system to reduce pulsations, utilizing an enclosed volume of fluid, such as air, to stabilize the flow rate and ensure consistent mixing of pharmaceutical compositions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If peristaltic pumps are used to pump pharmaceutical compositions, then the pumping function is achieved, but the flow rate exhibits pulsations that affect mixing quality
Solution Approach 1:
A dampener is introduced as an intermediary component between the peristaltic pump and the mixing chamber. The dampener contains a compressible fluid (gas or liquid) that absorbs flow pulsations from the pump, providing smooth, consistent flow to the mixing process without requiring changes to the pump itself
2Productivity
If peristaltic pumps with rollers are used, then fluid pumping is achieved, but pulsating flow is generated
Solution Approach 1:
The dampener serves as a mediator that decouples the pump's pulsating output from the mixing process. The compressible fluid inside the dampener acts as a buffer, absorbing pressure variations and delivering stable flow to the mixing chamber while allowing the pump to operate at high efficiency
3Manufacturing precision
If smooth flow is required for pharmaceutical mixing, then mixing quality is improved, but peristaltic pumps are unsuitable due to pulsations
Solution Approach 1:
The dampener enables peristaltic pumps to be used in applications requiring smooth flow by intermediate pulsation absorption. This maintains the versatility and ease of operation of peristaltic pumps while achieving the mixing quality required for pharmaceutical compositions
Solution Approach 2:
The dampener utilizes pneumatic or hydraulic principles with a compressible fluid to absorb flow pulsations. The compressible gas or liquid acts as a cushion that smooths out pressure variations, converting pulsating flow into steady flow suitable for pharmaceutical mixing
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 dampener significantly reduces pulsations, ensuring a stable and consistent flow rate, which is crucial for producing high-quality pharmaceutical compositions like RNA vaccines, maintaining sterility and reducing the need for costly Grade A cleanroom environments.
Implementation Method 1
utilizing an enclosed volume of fluid, such as air, to stabilize the flow rate
Implementation Method 2
a dampener for reducing the pulsations or oscillations of the flowrate from the peristaltic pump system
Data Source
AI summary
Provided herein are methods and systems for use with peristaltic pumps. More particularly, provided herein are peristaltic pump systems that include a dampener for reducing the pulsations of the flowrate from the peristaltic pump system to produce, mix, transfer and/or manufacture pharmaceutical compositions and formulations, including pharmaceutical compositions and formulations comprising lipids and RNA.