The PercSys Approach to Stone Management in Endourology

PercSys’ advanced microcatheter technology provides endourologists with an innovative approach to treating kidney and ureteral stones.   Our microcatheters feature a unique and proprietary method for forming an occlusion in the ureter to prevent stone fragment migration and facilitate fragment removal during lithotripsy procedures.

The first in a family of microcatheters, the PercSys Accordion® Stone Management Device is designed to simplify and shorten endoscopic lithotripsy procedures by combining the utility of multiple endoscopic stone management tools into a single device.  Specifically, it offers the benefits of a device for blocking stone migration and the utility of a basket during stone fragment removal.

The Accordion device is a hydrophyllic coated, microcatheter-based tool that has the tracking performance characteristics of a premium guidewire*. It features a multi-fold film occlusion that tracks easily past a stone before being deployed.  Once in position, the occlusion will conform to the shape of the ureter, unlike basket or coil devices.  The occlusion allows use of irrigation during stone fragmentation while preventing retrograde migration of stone fragments up to the kidney.  This irrigation can facilitate distal rinsing of smaller fragments to keep the field of view clear. 

Following fragmentation, the device can sweep multiple, larger fragments into the bladder or into a ureteral access sheath, eliminating the need to basket and remove fragments individually. Unlike most baskets, the Accordion device can be opened easily to release the stone or trapped fragments in the lumen of the ureter, if needed. Unlike a balloon, the Accordion device's functionality is not compromised by inadvertent contact with lithotripter energy.  These features position the PercSys Accordion Stone Management Device as a valuable new tool with potential for everyday use in endoscopic lithotripsy procedures.