Cannulation. Cannulation is the process of inserting a tube (cannula) into a passage, duct or cavity to supply or withdraw material or data. In medical dictionary, cannulation is a process used to deliver or remove body fluids under various medical conditions, like withdrawing blood for sampling. Effective needle length is extended by half the length of the original needle in cannula by surrounding either the inner or outer surfaces of a trocar needle.
Van Buren, AR. Van Buren ( /vÃ¦n bjÊÉrÉn/) is the second largest city in the Fort Smith, Arkansas-Oklahoma Metropolitan Statistical Area and the county seat of Crawford County, Arkansas, United States. The city is located directly northeast of Fort Smith at the Interstate 40 - Interstate 540 junction.
(Please note that the Navigation menu located at the top of the page also features drop-down options.) Van Buren County borders Greers Ferry Lake and also contains part of the Ozark Mountains. We are an ideal tourist destination for safe and wholesome outdoor vacations for the individual, couple, group, or family. The landscape is rugged and mountainous to the north and rolling to the south.