Onflow’s most frequently asked questions

What volume of blood can be collected with the onflow?

The onflow device can collect up to 1.2mL maximum of capillary blood in gel tubes (yellow, light green) and up to 1.5mL maximum in all other tubes (purple, red, green).

How does Loop collect the blood?

In a standard venipuncture procedure, a long needle is used to collect blood from the vein in the arm. Loop accesses blood in capillaries that are just below the skin, in a minimally invasive and painless manner.

Is there a risk of hemolysis in the blood sample?

Loop has demonstrated that the blood collected with its new technique was of a similar quality as standard blood samples performed by venipuncture, with low hemolysis levels and low contamination by interstitial fluids.

What type of blood tests can be performed with the Loop technology?

Loop’s unique blood collection technology aims to be fully compatible with automated blood analyzers used by central laboratories (e.g. Roche Cobas, Siemens Attelica, Abbott Architect, Beckman Coulter). The blood collected with Loop will therefore allow the performance of hematology panels (complete blood count) and a large number of immunoassays. Covering most of the tests performed using Purple (EDTA) and Yellow (Serum Gel) standard phlebotomy tubes.

When will Loop blood collection technology be available?

Loop’s technology is under development and not available for commercial sale yet and does not have regulatory approval. Currently, the technology will be available in 2024. Please contact us for partnerships or support.