A urine collector for separating the initial, midstream and final portions of voided urine in infancy and early childhood.

The object of this study was to design a simple and non-invasive method for the collection of uncontaminated urine samples in children aged up to 4 years. We developed a disposable plastic midstream urine collector for use in combination with a specially designed chair which was simple to use and cost effective. In this study we compared the initial portion, midstream and final portion during a single voiding in 40 children and found significant differences between initial and other fractions of the urine sample.