Micro Pumps for Infusion / Drug Delivery Systems
These micro pumps deliver a drug such as insulin at a very low flow rate. We offer four basic structures with different features according to the requirements. The wetted part exposed to the drug is disposable with all the structures. One of the most valuable features of our pumps is that we can provide a feedback system that employs a flowmeter to measure with accuracy in the region of micro-liters. This feedback system is ideal not only for highly accurate flow control but also for detecting problems like clogging or kinking. We can customize all the types of our pumps, for instance, to increase the flow rate.
4 Basic Structures and Main Features
1. Tubing Pumps (Peristaltic Pumps)
Simple structure. Discharge volume control by the rotation of the motor. No free flow.
2. Piezoelectric Diaphragm Pumps
Thin shape, low power consumption, and wide flow rate control range.
3. Electro-osmotic Flow Driven Micro Syringe Pump
The syringe also works as a drug reservoir. Ultra-low power consumption. High discharge pressure.
4. Shape Memory Alloy Driven Micro Metering Pump
Disposable, including the actuator. Thin and ultra-lightweight.
Planar Tubing Pumps (Chip Pumps)
In contrast to other companies' products, our pump differs by storing the tubing in a chip that contains magnets so that the chip can be easily attached to and detached from the motor unit. This method makes the replacement of tubing very easy. The video below shows how it all works.
We can offer either a stepper motor for high precision flow control or an economical DC motor that consumes less power. When the motor stops, the tubing is closed by a roller, so a free flow (a small amount of leakage due to a head difference) does not occur.
The top image shown to the side is of our smallest tubing pump, weighing only 5 g. The flow per rotation is 2 μL.
The lower image to the side is a product with a maximum flow rate of 200 μL/min. Customization to further increase the flow is possible.
Piezoelectric Diaphragm Pumps (Piezo Pumps)
A magnet attached the wetted part to the piezoelectric driving unit and is easy to replace. The product in the picture is just 6.9 mm and 13 g. The piezo pump is ideal for feedback control since its flow rate is finely adjustable by the voltage and the frequency.
Electro-osmotic Flow Driven Micro Syringe Pump
This product uses a unique pump called an "Electro-osmotic pump" for the driving unit, which slowly discharges a drug stored in a microsyringe without pulsation. Since it consumes little power, miniaturizing the battery is possible. One of its features is that it can inject a drug at a higher pressure than other pumps. Please visit the link below to see how it works.
For more information about the electro-osmotic pump that we have available:
Shape Memory Alloy Driven Metering Pump
This pump dispenses about 0.9 μL of liquid per shot by shrinking a shape memory alloy wire. This feature makes it the most economical among the four basic structures because it does not use a motor or more expensive actuators. The expectation is that the user will replace the entire pump after each use. The number of pumping shots controls the amount of injection. The product in this picture is just 4 mm and 1.7 g. This pump is also lightweight, a beneficial feature—no free flow.
Note: Details such as specifications, etc., may be changed without notice.