The San Antonio-based company, Electrochemical Oxygen Concepts, manufactures a medical device called Continuous Diffusion of Oxygen (CDO) therapy, which provides oxygen therapy to heal patients suffering from difficult-to-heal wounds. The FDA-cleared Class II, CE marked medical device provides a Continuous Diffusion of Oxygen (CDO) therapy, which has helped heal patients suffering from new and old wounds, including diabetic foot ulcers, pressure ulcers, venous stasis ulcers, dehiscent surgical wounds, diabetic amputation wounds, gangrenous ulcers, wound bed preparation for skin grafting, full & split thickness skin grafts, and radiation burns. The company offers its products through a network of specialty wound care suppliers and was incorporated in 2007.