Patent ID: 8439049
Filing Date: 2013-05-14
Classification: A61C

Abstract:
1. A dental floss formed as a strand, including a plurality of threads braided with each other in a multi-looped manner so that collectively forming a volumetric knit structure; while being stretched along a straight line, said strand has a longitudinal axis, wherein said strand comprises: a plurality of quasi-flat sections sequentially disposed and twisted in relation to each other along the longitudinal axis, wherein each said quasi-flat section is characterized with a plurality of quasi-flat cross-sections perpendicular to the longitudinal axis, wherein each said quasi-flat cross-section has a cross-sectional peripheral contour capable of being approximated to a rectangle-like figure having a width and a height, wherein the height is predeterminedly greater than the width, each said quasi-flat cross-section has a transversal axis parallel to the height, and, for any two adjacent quasi-flat sections, the corresponding transversal axes are disposed at a predetermined angle alpha in relation to each other, wherein each said quasi-flat cross-section encompasses a first number of thread pieces; and a plurality of knobs formed between and connecting each two adjacent said quasi-flat sections, wherein each said knob is characterized with a knob cross-section perpendicular to the longitudinal axis and encompassing a second number of thread pieces; and wherein the second number of thread pieces is greater than the first number of strand pieces, and said floss is made in any of the following forms: un-waxed, waxed, or impregnated with predetermined therapeutic agents.