Capillary Tubes

Capillary Blood Collection

Capillary blood tests are of great importance, especially in paediatrics and geriatrics, because technological progress enables the physician to perform a clinical-chemical and haematological analysis from just a few microlitres of blood or plasma. Since venous blood sampling is often quite cumbersome for patients in these fields, the examination of capillary blood offers considerable advantages.

Blood is collected by puncturing the fingertip or earlobe. If a blood sample has to be taken from very young patients (infants or small children), the heel is also a suitable puncture site. In addition to blood gas analysis and blood sugar determination, capillary blood sampling is also used to determine metabolic disorders in new-borns.

Capillary Tubes

For haematocrit determination we offer both heparinised and non-heparinised haematocrit capillary tubes. These have fire-polished ends, a colour code and can be used in special haematocrit centrifuges.

In this category you will also find particularly fine Micro Capillaries with a volume of 5 to a maximum of 40 µl of blood. These capillary tubes are made of stable, insensitive Duran and ensure particularly safe handling compared to glass capillaries.

Systems for Blood Collection

The manufacturer Sarstedt offers a blood collection system for capillary blood. Their Microvette tubes can be handled similarly to a system for venous blood collection through different preparations. We stock ready-prepared capillary tubes for haematological examinations as well as microvettes for serum or plasma collection.

A distinction can be made between the Microvette 200 and the Microvette 500 system. With the Microvette 200, blood is collected with the help of an end-to-end capillary tube and the blood is directed into the collection container; with the Microvette 500, on the other hand, the tubes are equipped with a collection rim. They serve as a drip vessel and can also be used to swab small drops of blood.

Erythrocyte sedimentation rate can be measured with the Microvette CB 200 ESR system. A special 3-part system is available for this purpose, consisting of a collection capillary, a blood tube prepared with citrate and a sedimentation capillary. However, a special ESR rack is needed to perform blood sedimentation.

Lancets, Lancing Devices and Other Accessories for Blood Collection

For the clean and safe collection and analysis of blood, we have various accessories in our online shop: these include lancing devices for hygienic puncture and capillary blood collection from the patient's fingertip, earlobe or heel.

In addition to classic lancing devices with adjustable puncture depth, we also offer disposable lancing devices in various designs that can be disposed of whole after use.

Another indispensable aid in your medical laboratory is the Haematocrit Sealing Wax for reliable sealing of haematocrit capillaries. The plates usually have numbered fields and allow the sealing of several hundred capillary tubes. 

Do you need more information about our products for capillary blood collection? Feel free to get in touch - via e-mail, telephone or live chat.