Jaws for a surgical device comprising: a first jaw having a length, a width, and a thickness, the length being greater than the width, and the first jaw including a tissue-facing surface (435Aint) and an outer surface (435A Ext), with the thickness being part of the outer surface; a second jaw, opposed to and pivotally connected to the first jaw, the second jaw having a length, a width, and a thickness, the length being greater than the width, and the second jaw including a tissue-facing surface (435B Int) and an outer surface (435B Ext), the tissue-facing surface of the second jaw facing the tissue-facing surface of the first jaw, and the thickness of the second jaw being part of the outer surface of the second jaw, wherein the tissue-facing surfaces of the first and second jaws each include a plurality of ridges, the ridges extending along a substantial portion of the width of the respective jaws, and wherein the outer surfaces of the first and second jaws each include a plurality of ridges, the ridges extending along a substantial portion of the width of the respective jaws, and the plurality of ridges of at least one of the outer surfaces of the first and second jaws extending onto a portion of the outer surface that defines the thickness for that jaw; characterized in that a distal end of one of the first and second jaws includes a tissue-grasping groove formed in the tissue-facing surface, the groove being substantially perpendicular to the plurality of ridges of the tissue-facing surface, and a distal end of the other of the first and second jaws includes a tissue-grasping tooth disposed on the tissue-facing surface, the tooth being substantially perpendicular to the plurality of ridges of the tissue-facing surface and being complimentary to the tissue-grasping groove of the other jaw. a first jaw having a length, a width, and a thickness, the length being greater than the width, and the first jaw including a tissue-facing surface (435Aint) and an outer surface (435A Ext), with the thickness being part of the outer surface; a second jaw, opposed to and pivotally connected to the first jaw, the second jaw having a length, a width, and a thickness, the length being greater than the width, and the second jaw including a tissue-facing surface (435B Int) and an outer surface (435B Ext), the tissue-facing surface of the second jaw facing the tissue-facing surface of the first jaw, and the thickness of the second jaw being part of the outer surface of the second jaw, wherein the tissue-facing surfaces of the first and second jaws each include a plurality of ridges, the ridges extending along a substantial portion of the width of the respective jaws, and wherein the outer surfaces of the first and second jaws each include a plurality of ridges, the ridges extending along a substantial portion of the width of the respective jaws, and the plurality of ridges of at least one of the outer surfaces of the first and second jaws extending onto a portion of the outer surface that defines the thickness for that jaw; characterized in that a distal end of one of the first and second jaws includes a tissue-grasping groove formed in the tissue-facing surface, the groove being substantially perpendicular to the plurality of ridges of the tissue-facing surface, and a distal end of the other of the first and second jaws includes a tissue-grasping tooth disposed on the tissue-facing surface, the tooth being substantially perpendicular to the plurality of ridges of the tissue-facing surface and being complimentary to the tissue-grasping groove of the other jaw.