Xatek, a US-based blood clotting test developer spun out from Case Western Reserve University, has obtained $9.1m in an oversubscribed series A round backed by a consortium of unnamed private investors.

Xatek has developed a compact sensor-based technology called ClotChip that measures a person’s ability to clot blood, a natural process which normally prevents bleeding when a blood vessel is injured.

ClotChip uses a technique called miniaturised dielectric spectroscopy to provide more accurate information than conventional alternatives by measuring the…