ROSENBERG, Texas-Ocusoft, in a joint venture with Essentia Pharma, a marketing and investment subsidiary of Ocusoft, has acquired the intellectual property portfolio of Digital Heat Corp., a science and technology-based company located in Phoenix, Arizona. The price was not disclosed. A key asset of the portfolio is an eyelid warming device for dry eye patients which will be marketed as the Ocusoft Thermal 1-Touch. The device offers preset modes and temperature settings which can treat four eyelids simultaneously. These features provide improved patient convenience for in-office procedures, according to Ocusoft. Significantly, the device eliminates disposables cost by leveraging a proprietary technology known as Digi Lens, which makes the Thermal 1-Touch cost-effective for physicians.