3 way and 2 way foley catheter

A Foley catheter is a flexible tube that a clinician passes through the urethra and into the bladder to drain urine. 


Material: Typically made of latex or silicone.


Balloon: A small inflatable balloon at the tip that holds the catheter in place within the bladder.


Uses: Used for patients with urinary retention, during surgery, for accurate urine output measurement, and in certain medical conditions.


Types of foley catheters:


1. Two-way foley catheter: Standard type with one channel for urine drainage and another for inflating the balloon.




2. Three-way foley catheter: Has an additional channel for bladder irrigation, commonly used in patients with hematuria or after bladder surgery.






Devices that are inserted through

natural opening 

Devices that are inserted through

unnatural opening 

Number increase, 

diameter increase 

Number increase, 

diameter decrease

Diameter order-

12G < 14G < 16G < 18G 

Diameter order-

12G > 14G > 16G > 18G

1. Ryles tube- in nose / mouth 

2. Suction catheter- in nose / mouth

3. Gudel airway- in mouth

4. Foley catheter- in uretha 

1. IV cannula - in veins


French Size (Fr)

Foley Catheter Color

10 Fr

Black

12 Fr

White

14 Fr

Green

16 Fr

Orange

18 Fr

Red

20 Fr

Yellow

22 Fr

Purple

24 Fr

Blue



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