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BioGears™ is an open source (Apache 2.0 license), physiology engine to model human response to trauma and treatment and will include physiologically accurate models for multiple systems, including cardiovascular, respiratory, renal and endocrine. It also will allow for distributed collaboration and consistent simulation across the medical training community.

The main goals for BioGears are:

  • Create a comprehensive, extensible human physiology engine that will drive medical training technologies
  • Create a publicly available physiology research platform that enables accurate and consistent simulated physiology across training applications
  • Lower the barrier to creating medical training content
  • Engage the community to develop and extend physiology models
  • Meet the training needs of the military
  • Expand the body of knowledge about the use of simulated physiology for medical education

Developer - Research Associates, Inc. (ARA). ARA won a $7 million multiyear contract from the U.S. Army Medical Research and Materiel Command (USAMRMC) in Fort Detrick, Maryland to develop BioGears.

Principal investigator: Mr. Jerry Heneghan

U.S. Army’s Telemedicine & Advanced Technology Research Center (TATRC) will administer the program.

Technology: C++ and Java. BioGears is based on a common data model that will create standard inputs and outputs, making it easy to extend existing and add new physiology models. BioGears will provide a set of application programming interfaces (APIs) for real-time retrieval of accurate physiology state.

Events: the BioGears Conference will coincide with the release of the BioGears Engine beta build release in the Raleigh/Durham area in September or October 2015.


  1. MEdSim magazine (Volume 3, Issue 2, 2014). Mr. Marty Kauchak, Group Editor at MEdSim interviewed BioGears PI, Mr. Jerry Heneghan, at the International Meeting on Simulation in Healthcare. [MEdSim2014]
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