Molli Surgical Inc. has won the FDA’s nod for its wire-free localization technology for breast cancer surgery. The company said the Molli system helps radiologists tag cancerous lesions quickly and precisely, facilitating surgical excision and eliminating a source of anxiety associated with breast tumor removal.

Atricure Inc. has received the green light from the FDA for its Epi-Sense guided coagulation system with Visitrax technology to treat patients diagnosed with long-standing, persistent atrial fibrillation (AF). The device was previously cleared via a 510(k) for the coagulation of cardiac tissue, and is already available in the U.S. The FDA approval represents the first and only minimally invasive ablation therapy for the more than 3 million Americans with longstanding AF.

The FDA’s premarket review mechanisms for class II medical devices may strike some as little more than so much regulatory esoterica, and several courts have ruled that information about the 510(k) process is inadmissible during jury trials due to the possibility of sowing confusion among jurors. An appellate court in New Jersey has ruled that such an exclusion of evidence is prejudicial in a case involving surgical mesh manufactured by two device companies, however, opening a larger debate about the propriety of such exclusions in product liability litigation for medical devices.