【Features 】
1. Male urethral catheterization: Lift the penis, simulating extending the urethra bend (curvatura prepubica).   
Gently introduce the catheter into the meatus and slowly advance it through the urethra (through  cavernous body of urethra, membranous urethra and prostatic urethra). If the operation is correct,  the green light will power on. Advance the catheter about 18-20cm and the red light will power on. The  return of urine into the collection tubing signifies that the catheter is in the proper position.
2. Female urethral catheterization: Gently introduce the catheter into the meatus and slowly advance it  proximally 4cm through the urethra. The catheter will arrive at bladder and the red light will power on. The return of urine into the collection tubing signifies that the catheter is in the proper position.
3. Enema: Introduce the catheter into the anus and advance it about 10cm through the anal canal.