Body
The body of the device could be reduced in both size and diameter. A optimal liquid volume could be found for the amount of sprays in the bottle, and a size be modeled accordingly. Our goal was to model our device after the size of a pen, and currently it is larger than we would like. The body and caps could be colored as well, to allow for a more pleasing look and to allow logos to be placed on the body. This would increase the marketability of the device, with eye-catching colors, designs, and logos.
Nozzle
The sprayer nozzle on our device was ordered off of a plastics design store, and could be remodeled to a proprietary design to be more efficient. If research is done on the spray, an optimal distance and size could be found to further the efficiency of the nozzle and reduce the total amount of liquid used. A collaboration with a sprayer nozzle expert would be needed to design our own nozzle, and that would take time and resources that we don't currently have access to.
Brush
The brush on our current prototype is an orthodontics tooth pick, used for cleaning the spaces between braces. A small strip of microfiber cloth has been sewn on for optimal brushing efficiency. To create a more advanced brush would be to design and build a pick/brush made entirely out of microfiber. This would allow for the brush to be easily manufacturable and comparatively cheaper than building each one out of separate parts. It would also allow us to create a brush that is replaceable, allowing for the consumer to switch out the brushes if one gets soiled or replace them when an upgrade is necessary.
Cap
Our current cap design is both bulky and protruding around the edge of the bottle. A slimmer cap design would allow the body to be streamlined with the cap, giving consumers a smoother design for easier storage and usability. The caps do currently have the ability to slide on and off eachother, allowing for the caps to be placed on each other to keep pieces on the device and decrease the likelihood of losing one of the caps. Both the ends of the caps and the insides could be modeled to be more efficient when taking on and off, and last longer when friction starts to fail due to the loss of material when the caps are removed and put back on hundreds of times.