Designed and prototyped an inflatable mattress to reduce pressure sores for patients in field hospitals.
We used TPU coated nylon for the prototype. This material is intended for the manufacture of small dingies and other rugged inflatables.
Our mattress design called for a for interleaved internal compartments that could be inflated and deflated independently.
We managed to make it airtight!
Here’s a little timelapse of the process of heat welding the seams together.