Determining the Site

Having established the goal of designing a device with dual functions - preventing cholera (straw filter) as well as treating cholera (ORS - Oral Rehydration Solution, my next step is to determine where on the body this device can be kept. Having learned that cholera is a leading cause of the high death rate of children in impoverished regions, I have decided to design a device targeted towards children.

Therefore, the following are high on my list of design consideration priorities:

• designing a storage device for one treatment of ORS - this includes 1 tsp. of salt, 8 tsp. of sugar, and 1 liter of clean water (approx. 2.205 lbs.)
• finding a site on the child's body that can bear the weight of 2.205 lbs. of water for long periods of time on a daily basis in such a way that does not inhibit the child's physical activities
• determining the proper materials to store the ORS that can be exposed to hot climates for long periods of time that will keep the required liter of clean water clean, and free of BPA and phthalates (which are harmful chemicals released from plastics when exposed to heat over a long period of time)
• distributing the weight of the device so as to reduce the overall burden on the child
• ergonomically designing the device in a way that allows the storage device to become a comfortable addition to the child's everyday apparel

My next step is to get my hands on some type of child mold or model in order to design accordingly to my site. Any suggestions?