Tube restrictor for expressing fluid from a swab

FIG. 1 is a left perspective view of a first embodiment of a tube restriction for expressing fluid from a swab;

FIG. 2 is a top view thereof;

FIG. 3 is a right perspective view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a cross-sectional view thereof taken along line 5 - 5 in FIG. 4 ;

FIG. 6 is a side view thereof;

FIG. 7 is a cross-sectional view thereof taken along line 7 - 7 in FIG. 6 ;

FIG. 8 is a rear view thereof;

FIG. 9 is a bottom left perspective view thereof;

FIG. 10 is a bottom view thereof;

FIG. 11 is a bottom right perspective view thereof;

FIG. 12 is a left perspective view of a second embodiment of a tube restriction for expressing fluid from a swab;

FIG. 13 is a top view thereof;

FIG. 14 is a right perspective view thereof;

FIG. 15 is a front view thereof;

FIG. 16 is a cross-sectional view thereof taken along line 16 - 16 in FIG. 15 ;

FIG. 17 is a side view thereof;

FIG. 18 is a cross-sectional view thereof taken along line 18 - 18 in FIG. 17 ;

FIG. 19 is a rear view thereof;

FIG. 20 is a bottom left perspective view thereof;

FIG. 21 is a bottom view thereof; and,

FIG. 22 is a bottom right perspective view thereof.