Medical device maker Natus Medical to launch $50mm IPO

Natus Medical, a maker of devices to detect and monitor medical disorders in fetuses and newborns, announced in an S-1/A filing that it plans to launch a $50 million IPO, underwritten by Dain Rauscher Wessels and First Union Securities. Salomon Smith Barney, who was originally scheduled to lead manage this deal, was taken off the list. Exact timing has yet to be announced.