The TPS stent was recently published in the Endourology Journal after yielding promising results:
During the last 2 decades, the use of prostatic stents has started to become an alternative to indwelling catheters or even to surgery. The adaptation of existing vascular stents for different non-vascular conditions created a gap in the market for site- and disease-specific stents that are designed precisely to the anatomy and physiology of the organ to be treated.