Easy-to-clean straw

Abstract

An easy-to-clean straw including an outer tube wall, an uneven inner tube wall and a channel enclosed by the uneven inner tube wall; where the uneven inner tube wall has a plurality of protrusions thereon to enable a user to press and roll the outer tube wall to rub the uneven inner tube wall with the plurality of protrusions, thereby effectively removing remnants left on the uneven inner tube wall.

What is claimed is: 
     
         1 . An easy-to-clean straw comprising:
 an outer tube wall;   an uneven inner tube wall; and   a channel enclosed by the uneven inner tube wall;   wherein the uneven inner tube wall has a plurality of protrusions thereon to enable a user to press and roll the outer tube wall to rub the uneven inner tube wall with the plurality of protrusions, thereby effectively removing remnants left on the uneven inner tube wall.   
     
     
         2 . The easy-to-clean straw as disclosed in  claim 1 , wherein the straw is made of silicone or TPE. 
     
     
         3 . The easy-to-clean straw as disclosed in  claim 1 , wherein the protrusions are triangular. 
     
     
         4 . The easy-to-clean straw as disclosed in  claim 1 , wherein the protrusions are square. 
     
     
         5 . The easy-to-clean straw as disclosed in  claim 1 , wherein the protrusions are semicircular. 
     
     
         6 . The easy-to-clean straw as disclosed in  claim 1 , wherein the protrusions are polygonal. 
     
     
         7 . The easy-to-clean straw as disclosed in  claim 1 , wherein the outer tube wall has a cross sectional outline of a circular shape or a textured shape.