Previously dba as Calamari Medical, Inc, in 2011, Calypso Medical was acquired by Varian Medical, a firm with which they had previously had a working relationship. Calypso Medical Technologies, Inc. had been longtime involved in in real-time localization technology solutions for the precise tracking of cancerous tumors. The firm offered Calypso System, which utilizes miniature implanted beacon transponders to provide precise and continuous information on the location of the tumor in real-time during external beam radiation therapy. The company also offers Dynamic Edge Gating, a real-time solution, which automatically signals the linac to hold the beam when the target moves outside a patient-specific motion threshold safeguarding normal tissue from unintended radiation. In addition, it provides site preparation and installation, product training, reimbursement, and patient education services. It markets its products through sales representatives and distributors. Calypso Medical Technologies, Inc. had also jad a strategic development agreement with Siemens Healthcare.