DexCom Inc designs, develops and commercializes continuous glucose monitoring systems for ambulatory use by people with diabetes and for use by healthcare providers in the hospital for the treatment of both diabetic and non-diabetic patients. The majority of its product revenue comes from sales of its SEVEN PLUS ambulatory continuous glucose monitoring system. The Company's SEVEN PLUS and G4 PLATINUM systems are more invasive than current self-monitored glucose testing systems, including single-point finger stick devices, and patients may be unwilling to insert a sensor in their body, especially if their current diabetes management involves no more than two finger sticks per day. Moreover, patients may not perceive the benefits of continuous glucose monitoring and may be unwilling to change their current treatment regimens. As compared to the SEVEN PLUS, the G4 PLATINUM offers additional user interface and algorithm enhancements that are intended to make its glucose monitoring function more accurate especially in the hypoglycemic range. To address the in-hospital patient population, it entered into an exclusive agreement with Edwards to develop jointly and market a specific product platform for the in-hospital glucose monitoring market, with an initial focus on the development of an intravenous sensor specifically for the critical care market. Its products also shows how fast the body's glucose levels are changing. It is designed to help avoid highs and lows and to help keep the glucose between the lines of the target zones. Its competitors include Roche Disetronic, Roche Diagnostics, LifeScan, Inc, Johnson & Johnson, the MediSense and Abbott Laboratories, and Bayer Corporatio. Its products are medical devices subject to extensive and ongoing regulation by the FDA and regulatory bodies in other countries.