December 2025—HemoSonics has received FDA 510(k) clearance for expanded use of its Quantra hemostasis system with QStat cartridges in peripartum obstetric procedures. It is the first FDA-cleared viscoelastic testing platform for obstetric bleeding, according to a company press release. The system uses SEER (sonic estimation of elasticity via resonance) sonorheometry to measure the coagulation properties of a whole blood sample. It provides results in about 15 minutes.
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