Optimized Ureteroscope Shape to Reduce Intrapelvic Pressure

Background:

During ureteroscopy, the irrigation fluid used to distend the kidney and make stones easier to extract can also cause problems. It can cause a buildup of pressure in the pelvis, and any bacteria which are present can get pushed up into the kidney with the fluid, placing patients at risk for sepsis and pain. Intrapelvic pressure is directly related to fluid inflow and outflow. Mathematical models examining fluid flow patterns within the pelvis and ureter during ureteroscopy suggest that the diameter of the endoscope is a critical parameter in fluid flow rate. Lower pressure is thought to reduce bleeding and sepsis.

Technology Overview:

SUNY Upstate Medical University researchers have determined the optimal shape of a ureteroscope for reducing intrapelvic pressure. They found that by offsetting the endoscope to the side of the access sheath, fluid outflow was improved and pressure was reduced. In order to achieve this displacement in a stable way, they added small, radially emanating, collapsible projections either to the inside the ureteral access sheath or to the shaft of the ureteroscope itself. Any endoscope or catheter can be adapted with these projections, including bronchoscopes.

Advantages:

 
•    Reduces pressure that can cause infection, injury, and pain.
•    Modifications can be used to adapt any endoscope or catheter.

Applications:

 
•    Reduces pressure buildup during endoscopic procedures.

Intellectual Property Summary:

•    Provisional Filed 63/150,163

Licensing Status:

This technology is available for licensing.