Varian Buys Calypso Medical

Palo Alto-based Varian Medical Systems and Seattle-based Calypso Medical Technologies said Monday that Varian is acquiring Calypso for $10M, plus potential earnout. Calpyso is a developer of tumor tracking and motion management systems for radiosurgery and radiotherapy. Calypso Medical had raised north of $100M in venture funding, from such companies as Bay City Capital, Frazier Healthcare Ventures, Interwest Partners, and Skyline Ventures.