Team 3

Optimizing a Urine Collection Device for Female NASA Crew Members in Microgravity

Team Members:

Daniella Pautz

Victoria Dong

Abby Turcheck

Karla Sharbuno

Bryce Tucker

Team Mentors:

Dr. J.M.R. Apollo Arquiza, PhD - Arizona State University, SBHSE

Dr. Vincent Pizziconi, PhD - Arizona State University, SBHSE

Mr. Keith Tucker - NASA Johnson Space Center

Dr. Kimia Seyedmadani, PhD - NASA Johnson Space Center

YouTube Link:
View the video link below before joining the zoom meeting

Zoom Link:
https://asu.zoom.us/j/2971342208


Abstract

Urine collection devices (UCDs) are used by NASA to collect urine of crew members in space for urinalysis. However, the current UCD in use is prone to urine backflow which can lead to urinary tract infections (UTI). Female crew members are eight times as likely to develop a UTI compared to men in spaceflight due to having shorter urethras. In addition to problems with backflow, urine samples are currently sent back to Earth to be characterized, which is costly and does not give the timely results that many astronauts require during long duration space missions.

The SecUR team has been tasked with redesigning the UCD for female NASA crew members to reduce UTIs and allow for on-board urinalysis. Based on results from analytical models verified with virtual and physical prototypes; design improvements include geometrical and human factor improvements such as widening the opening of the adapter and bag, adding an extra ridge on the edge of the adapter to help the user hold onto the device, and increasing in situ testing capability by adding a urine test strip to make urinalysis possible in spaceflight when monitoring crew member health. Based on virtual prototype testing, the SecUR team has completely reduced the incidence of negative pressure that results in urine backflow. Our model also significantly reduces NASA operating costs with the utilization of urine test strips, which helps avoid the steep costs of sending samples to Earth for basic health monitoring, and tests for important components such as glucose, pH, and more. Since no other market competitors exist besides the current UCD, the SecUR UCD meets the unmet needs of NASA and could potentially be used for the emerging market of the public sector of space. This portable product also may be used for other extreme environments or limited operational cases such as soldiers in the field.