Efficient filling of tubes with viral transport medium to support COVID-19 testing

The COVID-19 pandemic has brought a strain on resources in a number of areas, including laboratory testing. As in other outbreaks – such as influenza A H1N1 in 2009 – the demand for diagnostic testing has increased dramatically to identify cases and track the virus spread. Included in this demand are products that are needed for safe collection, transfer and preservation of viral specimens, such as viral transport medium (VTM).

Dose-It pump being used to fill tubes in lab
KONICA MINOLTA DIGITAL CAMERA

Scaling up production

In line with recent recommendations from the Centers for Disease Control and Prevention (CDC), VTM for COVID-19 testing can either be sourced commercially or made by diagnostic labs. The Dose It peristaltic pump therefore provides the perfect platform for labs rapidly preparing tubes of VTM for COVID-19 testing, as it can quickly and efficiently aliquot VTM into individual sterile screw-capped tubes.

Fast and efficient aliquoting

Dose It can be used to efficiently and accurately dispense large, defined volumes of VTM using a range of dispensing programmes, and preparation time is kept to a minimum with the flip-top pump head for easy tube loading. Dispensing can be user controlled via benchtop or footswitch, or software controlled – with dispensing occurring at set time intervals – offering the flexibility to adjust dispense rates to your workflow.

Xebios Diagnostics, based in Düsseldorf, Germany, manufactures high-quality ready-to-use culture media for microbiological diagnostic applications, and is using the Dose It to aliquot VTM into individual sterile screw-capped tubes to meet market demands. Christoph Mentzel, CEO of Xebios Diagnostics, commented: “We’re seeing demand for these test kits from a number of diagnostic labs and from the Corona crisis team in the Netherlands. Dose It has allowed us to quickly and flexibly ramp up our production capacities to supply our customers with VTM tubes and test-kits for SARS-CoV-2 testing in this unprecedented time. We are taking on a number of new employees to help with production and needed a system that was robust, while also being extremely intuitive and easy to use to condense training time. The Dose It pumps met our requirements and we are using them to fill more than 500 000 test tubes per week at our production sites in Düsseldorf and Groningen (Netherlands) – the platform is really helping in the response to this virus.”

Dose It peristaltic pump for rapid tune preparation
KONICA MINOLTA DIGITAL CAMERA

Minimising contamination when moving liquids

Dose It’s enclosed system ensures fluid remains contained inside the tubing, minimising the risk of contamination of the product or pump itself. Additionally, tubing can easily be sterilised after use, and there are no valve or seals to reduce contamination further. This design also decreases the need for spare parts, reducing costs. Not only is the system perfect for aliquoting VTM in the current pandemic, but suits a range of other applications; the gentle rolling mechanism enables the transfer of delicate liquids – such as blood cells – reducing the chance of sample damage and degradation that is often associated with pump designs that use rapid moving propeller blades to move the liquid.

The Dose-It peristaltic pump is an Integra product. Integra is exclusively represented by Labotec in South Africa.

LABOTEC (PTY) LTD
JHB: (011) 315 5434
CPT: (021) 531 7660
DBN: (031) 566 4870
FAX: (011) 315 5882

sales@labotec.co.za
www.labotec.co.za



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