Sphere Medical, based in Cambridge, UK, is a company completing the development of a range of monitoring and diagnostic products designed to provide significant improvements in patient management in a number of hospital specialities. Sphere Medical's products are expected to allow near real time measurement of blood gases, various electrolytes, glucose and drug levels with laboratory accuracy, at the patient's bedside. This information can be used in a wide range of medical applications and is intended to enable faster clinical decision making and consequently to improve the management of patients.

Sphere Medical’s two most advanced products based on its proprietary microanalyser technology are a disposable patient-attached arterial blood analyser for use in the intensive care unit or operating room (‘Proxima’) and an in-line blood monitor for patients undergoing cardiac bypass surgery. In addition, Sphere Medical has a propofol measurement device (‘Pelorus 1000’). In each case, these products will ultimately target patients requiring close monitoring and frequent levels of blood testing.