The ability to generate intravenous (IV) fluids for medical care from available spacecraft potable or technical water supplies will greatly reduce launch mass for NASA's future exploration class missions. In spite of designing and testing several systems, NASA has not yet met that goal. As a result, NASA’s Human Research Program initiated a detailed effort examining several different technologies for first purifying water and then mixing effectively with appropriate solutes.
IntraVenous Fluid GENeration for Exploration Missions (IVGEN) will demonstrate a microgravity compatible water purification to the standards required for intravenous administration, and a pharmaceutical mixing system. This hardware is a prototype that will allow flight surgeons more options to treat ill or injured crewmembers during future long-duration exploration missions.
Trade studies were used to down-select different technologies based on minimizing mass, volume, and power requirements. Experiments were conducted in normal and short duration reduced gravity facilities to verify actual performance of the selected technologies.
Pressure driven systems with a gas-liquid separator and a DI (deionization) cartridge have been shown to generate Sterile Water for Injection per the United States Pharmacopeia (USP) standards. Furthermore, by pre-positioning a sterile magnetic stir bar and salt within an IV (intravenous) bag, the desired medical solution can be quickly and effectively generated.
Given the limitations with both the normal gravity and ground-based reduced gravity testing, these results need to be verified on orbit using a prototype. Further, an appropriate system level test should be conducted prior to deployment. Accordingly, the objectives of this experiment include the following:
IVGEN technology could be used on Earth to generate purified water and IV fluid in Third World countries where medical resources are limited.More »
During the past year, electronic data was analyzed. A plan was developed and implemented to ascertain the cause for not meeting the USP target for acceptable saline concentration in the two samples that were produced. For the first case, the cause was attributed to the introduction of a larger than acceptable air bubble into the liquid feed. For the second case, the cause was that an insufficient amount of salt was premeasured into the mixing bags. A final report was generated--see Bibliography section.More »
|Organizations Performing Work||Role||Type||Location|
|Johnson Space Center (JSC)||Lead Organization||NASA Center||Houston, TX|
|Glenn Research Center (GRC)||Supporting Organization||NASA Center||Cleveland, OH|
This is a historic project that was completed before the creation of TechPort on October 1, 2012. Available data has been included. This record may contain less data than currently active projects.