The U.S. FDA has granted emergency use authorization (EUA) to Breath Direct Inc. for its BDR-19 critical care ventilator for the treatment of critical care patients with respiratory insufficiency. Initial shipments of the device are expected within weeks. The EUA marks a major milestone for the fledgling Long Beach, Calif.-based company, which was started by medical device entrepreneur Darren Saravis in the early days of the pandemic.

MIT Media Labs spinoff Empatica Inc. secured the CE mark for its Aura system, a wearable solution for the monitoring and early alert of respiratory infections, including COVID-19. For use with people 14 and older, Aura is commercially available in Europe and the U.K., and for pilot purposes in the U.S. – pending FDA authorization. Aura’s algorithm analyzes vital signs from Empatica smartwatches, comparing data against the wearer’s historical baselines. In validation studies, Aura was able to detect patients with possible H1N1 influenza, rhinovirus or SARS-CoV-2 infection with 0.94 sensitivity. Detection occurred on average two days after infection.

Medi-Scan Inc. has emerged from stealth mode with cloud-based software that converts the data on ultrasound analog 2D grayscale images into a digital 3D high-definition (HD) format in less than two minutes. The company is currently focusing its efforts on the heart and lungs, with the aim of providing quick, point-of-service evaluation and triaging of patients with heart disease and other conditions, including COVID-19.

Corvista Health Inc. has raised $65 million in a series C equity financing led by Ambix Life Science Fund I LP. The new funds are earmarked for ongoing research, product development and commercialization of the company’s noninvasive, point-of-care (POC) solution for rapid detection of heart disease. Joining Ambix in the round were Medventure Partners and several new and existing investors. With this latest infusion, Corvista has raised a total of nearly $100 million.

Boston Scientific Corp. has inked an agreement with an affiliate of Baring Private Equity Asia to acquire the global surgical business of Lumenis Ltd. for $1.07 billion up front. The med-tech giant has had a relationship with Lumenis for more than two decades and currently sells its urology laser portfolio in the U.S. and Japan. The transaction, expected to close in the second half of the year, expands Marlborough, Mass.-based Boston Scientific’s global urology footprint.

The FDA has granted de novo authorization to Fifth Eye Inc. for its Analytic for Hemodynamic Instability (AHI), a machine learning (ML)-based, real-time indicator of patient deterioration. Commercialization of the software device, which continuously monitors patients with an electrocardiogram (ECG) for signs of deterioration, got underway on March 1.

Hologic Inc. continues to strengthen its diagnostics businesses via tuck-ins, this time with the acquisition of Diagenode SA for $159 million. The Belgium-based developer of molecular assays and epigenetics products counts more than 30 real-time polymerase chain reaction (PCR) tests in its portfolio. Marlborough, Mass.-based Hologic has been on a spending spree in recent months. In January, the company completed the acquisition of Somatex Medical Technologies GmbH for about $64 million and agreed to buy molecular diagnostics company Biotheranostics Inc. for $230 million.

A new study by Mayo Clinic and Nference Inc. researchers suggests that prior childhood and adult vaccinations for illnesses such as polio, measles and flu may provide protection against COVID-19 infection. The study, which analyzed patient data using Nference artificial intelligence (AI) software, underscores the critical role immunizations play in curbing the spread of diseases and preventing future pandemics. “What we discovered represents compelling evidence that vaccinations are a critical element in prevention of disease, even diseases one doesn’t anticipate,” said Venky Soundararajan, co-founder and chief scientific officer of the Cambridge, Mass.-based company.