Abstract ideas are not generally eligible for patents in the U.S., but a recent dispute heard by the U.S. Patent Trial and Appeal Board adds a new twist to the question.

Boston Scientific Corp. resumed enrollment in the AVANT GUARD trial of the Farapulse pulse field ablation (PFA) system after a pause reported in October “to assess a few unanticipated observations.” The trial aims to expand the indications for the market-leading PFA system to include a new population, drug-naïve patients with persistent atrial fibrillation.

Six main cell types form glioblastomas (GBM), the most aggressive brain cancer due to its high rate of recurrence. Of these six, quiescent cancer stem cells are responsible for resistance to therapy and the reappearance of the tumor, according to a study that identified the six groups and highlighted the importance of these stem cells for the design of more effective therapies.

Radiopharmaceutical biotech and contract development and organization firm Duchembio Co. Ltd. filed a securities report to South Korea’s Financial Services Commission Nov. 11, kickstarting the IPO process to list on the Korea Exchange.

Zap Surgical Systems Inc. reported closing a $78 million series E funding round led by Qingdao Baheal Medical Inc., with participation from other strategic investors. The new funds will be used to commercialize the company’s Zap-X gyroscopic radiosurgery platform for the non-invasive treatment of brain tumors.

Hyperfine Inc. gained CE mark approval for the latest generation of its artificial intelligence-powered software for its Swoop portable magnetic resonance imaging system, under the European Medical Device Regulation.

The U.S. Government Accountability Office has rejected an appeal by MCI Diagnostics Inc. regarding a contract bid with the Department of Veterans Affairs despite the company’s assertion that the VA pricing mechanism is flawed.