PARIS – Four years after being set up in Marseilles, France, Volta Medical SAS reported raising $28 million in a series A round for the VX1 software mapping system, an artificial intelligence (AI) algorithm that is compatible with most readily available multipolar catheters and technology used in operating rooms and cath labs to treat cardiac arrhythmia.

Infectious diseases diagnostics company Lucira Health Inc. launched an IPO of 9 million shares of common stock at $17 per share, for expected gross proceeds of $153 million. Friday’s Wall Street debut was a show of confidence, upsized from an original plan to offer 7.8 million shares at $15 to $17. The Emeryville, Calif.-based company has granted the underwriters a 30-day option to acquire up to an additional 1,350,000 shares of common stock at the initial public offering price, less underwriting discounts and commissions.

Chinese heart valve specialist Microport Cardioflow Medtech Corp. (HKEX:2160) launched an IPO in Hong Kong on Feb. 4, raising HK$2.5 billion (US$324 million) by issuing 205.62 million shares at HK$12.20 apiece. With J.P. Morgan, Citi and CICC backing the IPO, the stock opened at HK$21.50, up 76% from the offer price. The pre-revenue med-tech firm, spun off from Microport Scientific Corp. in 2020, develops transcatheter aortic valve implantation (TAVI) products for valvular heart diseases, and is especially known for its Vitaflow series.

PERTH, Australia – Micro-X Ltd. completed an AU$30.5 million (US$23.27 million) placement to expand its U.S. footprint for its lightweight digital mobile X-ray systems. The funds raised will drive market expansion of Adelaide, Australia-based Micro-X’s Rover digital mobile X-ray system that is designed for deployed military medical facilities, and to scale up its Carestream DRX Revolution Nano, a mobile lightweight digital X-ray system for hospitals.

Spectrawave Inc. has scooped up $13.2 million in a series A-2 financing led by prior investor Deerfield Management. The funds will be used to complete development and regulatory filing for its flagship cardiac imaging technology. Prior unnamed seed investors also participated in the round. With this latest infusion, Spectrawave has raised a total of approximately $30 million to date.

Visby Medical Inc. secured $12.3 million in funding from the U.S. Biomedical Advanced Research and Development Authority (BARDA) to develop a next generation device to detect influenza and COVID-19 in a single point-of-care rapid PCR test and, subsequently, as an over-the-counter test for consumer use. The contract may be extended up to a total of $48.7 million over a period of 38 months based on meeting certain milestones in the base period, according to Visby Founder and CEO Adam de la Zerda.

A definitive diagnosis of Alzheimer’s disease often isn’t arrived at until after a patient dies, when their brain is examined during autopsy. Neurovision Imaging Inc. is hoping to change that with reliable, affordable biomarker tests that can detect Alzheimer’s and other forms of dementia and neurodegenerative disorders before symptoms appear.