MIT DtM 2001: Cholera Project

2 DtM Project Methodology NGO recommends a problem Students: –investigate state of the art –establish design constraints –brainstorm design concepts –design and manufacture prototypes Expert design review Final report and project presentation Recommendations for future work

3 Cholera Treatment What is Cholera? –infectious disease of the digestive system –symptoms in hours, death in less than a day without treatment –in an epidemic, thousands of cases can develop in days Cholera Treatment –oral rehydration therapy for mild cases –IV drip infusion only cure for severe cholera (cholera gravis)

4 Cholera Treatment

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6 Design Challenge Improve the current system of IV drip flow monitoring and control

7 Intravenous Infusion Systems The Alternative: Programmable IV Pump, US$2000 plus monkey Available Everywhere: Standard IV Drip System, US$0.35 plus trained health technician VS

8 Design Philosophy Samuel JohnsonMSF Bracelet of Life

9 Cholera Cot

10 DtM: Standard IV Drip System Flow Control: IV Roller Clamp Flow Monitoring: IV Drip Chamber

11 Student Ideas: Calibration Sticker Design Sketch Prototype Sticker Sticker with Fresnel Lens *Patent pending

12 Student Ideas: Simple Clamp

13 Student Ideas: Non-Linear Roller *Patent pending

14 Student Ideas: IV Rotameter Standard IV Drip Chamber Industrial Low- Flowrate Rotameter Injection-Molded Rotameter *Patent pending