Example 3

FIG. 7 illustrates an embodiment of a ligation band 200, similar to the band 100 discussed above, with first and second tissue-contacting surfaces 220, 230 and tissue-gripping features 250, similar to the surfaces 120, 130 and the features 150. The figure illustrates the pressure being applied by the band 200 and the first and second surfaces 220, 230 to sandwich or secure trapped variceal tissue 260 therebetween, while the tissue-gripping features 250 provide extra anti-slip friction to lock or secure the variceal tissue 260 into place.

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