French catheter scale chart
- French catheter scale chart
The French catheter scale or "French units" (Fr) is commonly used to measure the outside diameter of needles, catheters, and other cylindrical medical instruments.
1 Fr is equivalent to 0.33 mm = .013" = 1/77" of diameter. Thus, the size in French units is roughly equal to the circumference of the catheter in millimetres.
References
This chart taken from [http://www.texloc.com/closet/cl_french_scale.html Texloc]
ee also
* Needle gauge comparison chart
Wikimedia Foundation.
2010.
Look at other dictionaries:
French catheter scale — The French catheter scale (most correctly abbreviated as Fr, but also often abbreviated as FR or F) is commonly used to measure the outer diameter of cylindrical medical instruments including catheters. In the French Gauge system as it is also… … Wikipedia
Catheter — disassembled In medicine, a catheter (pronounced /ˈkæθɪtər/) is a tube that can be inserted into a body cavity, duct, or vessel. Catheters thereby allow drainage, administration of fluids or gases, or access by surgical instruments. The… … Wikipedia
Needle gauge comparison chart — For knitting needles see Knitting needle#Needle gauge Hypodermic needles are available in a wide variety of outer diameters described by gauge numbers. Smaller gauge numbers indicate larger outer diameters. Inner diameter depends on both gauge… … Wikipedia
Hypodermic needle — A hypodermic needle is a hollow needle commonly used with a syringe to inject substances into the body. They may also be used to take liquid samples from the body, for example taking blood from a vein in venipuncture.A hypodermic needle is used… … Wikipedia
Stubs Iron Wire Gauge — The Stubs Iron Wire Gauge system (also known as the Birmingham Wire Gauge) is used in medicine to measure the diameter of hypodermic needles, catheters, and suture wires. It was originally developed in early 19th century England for use in wire… … Wikipedia
