Clinical Study on Disposable Sterile Urinary Catheter

A Multicenter, Prospective, Randomized Controlled Clinical Study to Evaluate the Safety and Effectiveness of Disposable Sterile Urinary Catheter

This study is a multicenter, randomized controlled study, with the urinary tract infection rate at the time of catheter insertion for 1 week as the primary end point. By comparing the clinical safety and effectiveness of two kinds of urethral catheters, to evaluate the clinical application effect of one kind of urethral catheters.

Inclusion Criteria:

• 18-80 year old patients;
• Retained catheter ≥ 7 days;
• Patients who were conscious and had good communication skills and volunteered to participate in the study.

Exclusion Criteria:

• Pregnant and lactating female patients;
• Diabetes patients;
• Patients allergic to sulfadiazine, silica gel and stainless steel;
• Urethral malformation, acute urethral injury, prostate disease, intermittent catheterization, suprapubic cystostomy and other patients who are not suitable for catheterization;
• Patients who have used urinary catheters for a long time or had catheters retained within one week;
• Patients who are participating in other clinical trials that interfere with this trial.