Newton, MA-based Beacon Endoscopic, a medical device startup, said yesterday it has closed $5 million in Series B financing from MVM Life Science Partners, based in London and Boston. The company also said it has received new capital from existing angel investors. Beacon has developed a fine needle aspiration system for endoscopic ultrasound and endoscopic bronchial ultrasound; the system has FDA clearance for endoscopic ultrasound use and is expected to be available in the fourth quarter of this year. Beacon Endoscopic started in late 2008 and is led by CEO Peter Rogal and co-founders Brian Tinkham and Christopher Thompson.