Des Moines-based Athena GTX has received a $3.2 million federal contract with the Office of Naval Research to accelerate the company's production of a system for monitoring battlefield injuries. Athena's Autonomous Critical Care System provides autonomous control of critical bodily functions for injured patients as they're being evacuated. The system is based on "closed-loop-control," much like a thermostat, to perform interventions to maintain a patient's medical condition, the company said in a release. The ACCS can be used for patient transport aboard ships or in land-based medical treatment facilities to augment medical personnel. Founded in 2001, Athena GTX manufactures wireless, mobile, patient-worn, miniature medical monitors and currently employs 25 people in Des Moines.