Restenosis, the development of plaque deposition in the arteries, occurs in 20 percent of stent implanted patients. Diagnostic technologies on the market today are error prone, difficult to implant, and difficult to manufacture.

A new stent has been developed for use in angioplasty stent placement to widen arteries the same as a traditional stent. The stent can measure the pressure along its length to accurately diagnose restenosis. By measuring any drastic drop or gradual increase in pressure through a multiple-zone pressure sensor scheme, the device is able to help locate and diagnose restenosis. These measurements are transmitted wirelessly to a data retrieval device, eliminating the need for periodic interventional procedures currently used to monitor the development of restenosis.