Ureteral catheter system for renal function studies in conscious rabbits

Area of Science:

• Urology
• Biomedical Engineering
• Nephrology

Background:

• Ureteral catheter obstruction by blood clots is a significant clinical challenge.
• Existing methods for managing clot obstruction are often ineffective or invasive.

Purpose of the Study:

• To develop and evaluate a novel double-lumen ureteral catheter designed to prevent blood clot obstruction.
• To assess the efficacy of continuous heparinized saline irrigation in maintaining catheter patency.

Main Methods:

• A double-lumen ureteral catheter was designed with an inner lumen for irrigation.
• Heparinized saline was perfused through the inner lumen to irrigate the outer lumen.
• Renal function studies were conducted in 12 rabbits using the novel catheter system.

Main Results:

• The novel double-lumen ureteral catheter successfully prevented obstruction by blood clots in all rabbits.
• No instances of catheter obstruction were observed during the renal function studies.

Conclusions:

• The double-lumen ureteral catheter with continuous heparinized saline irrigation is an effective solution for preventing blood clot obstruction.
• This innovative design holds promise for improving patient outcomes and reducing complications associated with ureteral catheterization.