Global Health Design Collaborative (GHDC) is a student design team at Case Western Reserve University which collaborates with Makerere University in Uganda on healthcare solutions. The team I was on focused on the redesign of a Vaccine Carrier for last-mile delivery of vaccines. This is a passive cooler which health care workers take on outreaches, traveling from healthcare clinics to villages to administer vaccines. The club travels to Uganda yearly to meet with healthcare workers and students at Makerere University to discuss our progress. The club also started a partnership in 2025 with a local manufacturer called Magnet to help with design and prototyping. The goal is to create a WHO compliant carrier, with a long term goal of local manufacturing in Uganda.
This is the current carrier used in Uganda, and it poses 5 issues.
Health care workers cannot assess the temperature of vaccines without opening the carrier
Lack of organization risks vials breaking
Close contact with the ice packs risks vaccines freezing
Top lid can be easily left open for extended periods of time
Sponge seen in the right picture is used for multi-dose administration; the lid is left open and the sponge sits on top. This isn't sanitary and warms the carrier up.
This carrier has a top workstation which allows for vials to be kept cold during multi-dose administration without keeping the carrier open. The door opens from the side instead of the top and has a magnetic closure system to prevent the door from being left open. Later designs will implement auto-closing hinges. The two ice pack design minimizes the weight and keeps the carrier smaller for portability. Preliminary testing shows this still keeps vials to be within WHO standards (2-8°C). The carrier is insulated with a closed cell spray foam. The rack and silicone insert allow for the storage of around 25 vials—a number which came from discussions with healthcare workers in Uganda. The silicone insert allows for differing vial sizes to be safely stored and transported. The most asked for design change was the addition of a temperature probe which monitors the internal air temperature of the carrier. This carrier was well received during discussions with health care workers in Uganda, with specific appreciation for the size and addition of a temperature sensor.
I was part of this team for three years. As an upperclassman on the team, I would lead some of the CAD and teach SolidWorks to team members who didn't have experience. All design and fabrication was done as a group; however, I did come up with the silicone rack design and fabrication method. I also taught some team members how to solder and led early temperature probe and display designs.
We had an abstract accepted for the 2025 Biomedical Engineering Society (BMES) conference. I was part of a group which went to San Diego for that conference to give an oral presentation on our work.
Enjoy these pictures from various points during my time on the team! You'll get a glimpse of the progression of the carrier.
My sophomore year we used HDPE sheets
We did a ton of insulation testing...
The 2023-2024 carrier