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Syringe Pumps and Rotary Valves

OEM Syringe Pumps for IVD instrument manufacturer

Tricontinent is the world's leading manufacturer of precision syringe pumps. Tricontinent OEM products, such as our full line of syringe pumps, set the bar for precision and accuracy and offer a unique combination of low flow and low pulsation.

You will find our syringe pumps at the heart of hundreds of highly successful instruments manufactured by many of the top IVD (In vitro diagnostics) and medical instrument companies. Companies developing instruments which require exceptional quality for liquid handling, and long lasting syringe pumps, turn to Tricontinent. We have been providing OEM syringe pumps to medical equipment manufacturers worldwide for over 35 years.


How do syringe pumps work?

Syringe pumps are working by filling a syringe with the desired medium (aspiration) and emptying the syringe (dispensing) after changing the flow path with a valve.

Syringe pumps consist of three components: a syringe, a drive mechanism and a valve which is often a so-called rotary shear valve. The simplest case is a 3-port valve where one port is connected with the syringe, one port acts as the inlet and the third port acts as the outlet port.

How does the workflow look like?

  1. The plunger moves up and the syringe is emptied – the system is now at its starting point
  2. The valve switches to the inlet position
  3. The plunger moves down and the syringe is filled with medium (aspiration)
  4. Then the valve switches to the outlet position
  5. The plunger moves up and the desired volumes are dispensed

The process repeats until the syringe is completely empty, then new medium has to be aspired.

Tricontinent’s rotary valve can last for four million switching cycles which has been shown during a competitive valve study. The syringe and the tubes have to be replaced from time to time, while the drive mechanism is designed to work for several years.

Tricontinent provides a wide range of different syringe pumps modules for different applications. The industry standard are the C-Series syringe pumps which provide highest accuracy and precision, while AccuPump and BasePump are affordable solutions for all standard pipetting tasks. The available syringe sizes vary from 50 µl up to 12.5 ml (C-Series).


Features

Our syringe pump modules offer following features for your application and instrument:

  • Dry running
  • Can pump gas and liquids
  • Self-priming
  • Reverse flow option
  • Wide volume range (µl to several ml)
  • Wide flow rate range (0.3 nl/min to 625 ml/min)
  • Pressure capability up to 100 psi
  • Very precise and accurate
  • Longevity
  • Maintenance free operation

Applications

Tricontinent goes the extra mile to customize our products to the exact requirements of your instruments. Tricontinent has a long and successful history of providing application specific OEM syringe pumps for our customers. These range from simple modifications of standard syringe pumps or liquid handling (XYZ) robots, to melding the key features of existing technology platforms, to completely custom designed syringe pumps and accessories to reduce service costs and field failures in our customer’s existing instruments.

Tricontinent also offers syringe pumps as a seamless replacement for industry standard pumps using the Cavro® protocol. All normal aspiration and dispensing operations expected from an OEM syringe pump module can be accomplished. The stepper motor driven syringe will accurately and precisely handle fluids from a few microliters to 12.5 milliliters. The syringe drive arm can be easily back driven, making syringe installation or replacement extremely quick and easy. The Tricontinent syringe pumps are ideal for experienced IVD instrument manufacturers who are looking to maximize the investment they have already made in existing instrumentation. They utilize standard communication protocols and mounting configurations used by other compact syringe pump designs, thereby eliminating expensive and time consuming re-development.

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