Investors are backing imaging diagnostics company Magnetic Insight Inc. with $17 million to develop its magnetic particle imaging (MPI) technology. The clinical imaging application consists of two core technologies: hardware and a tracer that, together, produce 3D images of how a patient’s body works. Venture firm Celesta Capital led the series B round with Alumni Ventures Group, Gaingels and existing investors 5AM Ventures and Sand Hill Angels participating.

Investors ate up the opportunity to be part of Gemelli Biotech Corp.’s series A funding round, which raised $19 million to support the company’s growth and expand access to its diagnostic tests for gastrointestinal (GI) diseases. Blue Ox Healthcare Partners led the round with founding investor Cedars-Sinai and support from Carolina Angel Network, Cerracap Ventures and several family offices.

A tightening of rules for biotech listings on the Shanghai STAR Market may have contributed to a visible cool-down in biotech IPOs, with fewer listings in Chinese stock markets in the first half of 2022.

Microtransponder Inc. raked in $53 million in an oversubscribed series E round that exceeded its best previous fundraising by nearly 500% and brought the company’s total funds raised to date to $93 million. The new money will be used to commercialize the Vivistim paired VNS system, which received premarket approval in 2021 as what the FDA called the “first stroke rehabilitation option using vagus nerve stimulation.”

Aerin Medical Inc.’s funding nosed up to $190.5 million with its latest venture capital round, which brought in $60 million in fresh cash. The provider of noninvasive solutions for chronic nasal conditions plans to use the funds to ramp up commercialization and expand market access to its Vivaer and Rhinaer products. New investor Ally Bridge Group led the round with support from returning major investors KCK Medtech, Questa Capital and Orbimed.