CapillaryABG™

The historical truth

Early blood gas analyzers used capillary tubes for calibration – because capillaries deliver bubble‑free, precise volumes. Syringe samples often failed due to air entrapment.

Immediate arterial confirmation

Transparent capillary wall gives visible pulsatile “flash” – true arterial blood, not venous. No more blind guessing.

Superior sample integrity

Capillary’s surface‑to‑volume ratio ensures fast, complete mixing with lyophilized heparin. Fixed volume eliminates under‑/over‑fill errors common with syringes.

Analyzer‑friendly – no silicone oil

Capillaries have no plunger, therefore no silicone oil – eliminating a major cause of micro‑particle buildup, channel clogging, and electrode drift in blood gas analyzers. This preserves long‑term instrument stability.

65–150 µL

Analyzer requirement

Most modern blood gas analyzers require only 65–150 µL of whole blood. CapillaryABG™ Series provide ample sample volume without excess.

1.6 mL

Conventional syringe draw

Traditional syringes force 1.6 mL or more – up to 10× the required amount, causing unnecessary blood loss.

95 mL/kg

Neonatal blood volume

A 1.6 mL draw from a 2.5 kg neonate represents nearly 2% of total blood volume – a clinically significant iatrogenic loss.

30–50%

Reduction in blood loss

Switching from syringe to capillary micro‑sampling can reduce iatrogenic blood loss by 30–50% in critical care settings.

0%

No bubbles, no clots

Hydrophilic capillary coating + lyophilized heparin eliminate air dead space and microclots – preserving anaerobic sample integrity.

25G

Less pain, less trauma

Ultra‑thin‑wall needle (0.5 mm OD) and capillary’s passive fill reduce puncture force and draw time – ideal for low‑pressure, elderly, pediatric, and neonatal patients.

240–320 µL

Minimal blood loss

Only a fraction of a milliliter per draw – dramatically reduces iatrogenic anemia risk and preserves patient blood volume.

0

No immediate mixing required

Heparin dissolves instantly; gentle mixing before analysis still recommended, but no aggressive shaking needed – eliminates hemolysis.

1

No preset, no guesswork

Capillary fills automatically to fixed volume – operator‑independent, perfect result every time. 

↓ 30%

Better analyzer stability

Clean, clot‑free, bubble‑minimized samples prevent electrode coating and fluid path clogging – reducing downtime and service costs by an estimated 30%.