A biopsy forceps device , comprising: an end effector including opposing first and second jaws coupled together and configured to move from an open configuration to a closed configuration, wherein each of the first jaw and the second jaw includes a cutting edge , at least portions of the cutting edges of the first and second jaws contact each other when the end effector is in the closed configuration, wherein as the first and second jaws close, the cutting edges of the first and second jaws sever tissue captured between the first and second jaws , wherein the cutting edge of the first jaw includes a plurality of first teeth each having a base, and the cutting edge of the second jaw includes a plurality of second teeth each having a base, wherein the bases of two adjacent first teeth of the plurality of first teeth are spaced apart from each other to form a first gap at the cutting edge of the first jaw , and the bases of two adjacent second teeth of the plurality of second teeth are spaced apart from each other to form a second gap at the cutting edge of the second jaw , wherein the end effector in the closed configuration defines one or more windows (149A; 149B) between the cutting edges of the first and the second jaws , at least one of the one or more windows (149A; 149B) including at least a portion of one or both of the first gap and the second gap, and wherein at least one first tooth of the plurality of first teeth has a generally triangular shape, at least one first tooth of the plurality of first teeth has a generally trapezoidal shape, at least one second tooth of the plurality of second teeth has a generally triangular shape, and at least one second tooth of the plurality of second teeth has a generally trapezoidal shape. an end effector including opposing first and second jaws coupled together and configured to move from an open configuration to a closed configuration, wherein each of the first jaw and the second jaw includes a cutting edge , at least portions of the cutting edges of the first and second jaws contact each other when the end effector is in the closed configuration, wherein as the first and second jaws close, the cutting edges of the first and second jaws sever tissue captured between the first and second jaws , wherein the cutting edge of the first jaw includes a plurality of first teeth each having a base, and the cutting edge of the second jaw includes a plurality of second teeth each having a base, wherein the bases of two adjacent first teeth of the plurality of first teeth are spaced apart from each other to form a first gap at the cutting edge of the first jaw , and the bases of two adjacent second teeth of the plurality of second teeth are spaced apart from each other to form a second gap at the cutting edge of the second jaw , wherein the end effector in the closed configuration defines one or more windows (149A; 149B) between the cutting edges of the first and the second jaws , at least one of the one or more windows (149A; 149B) including at least a portion of one or both of the first gap and the second gap, and wherein at least one first tooth of the plurality of first teeth has a generally triangular shape, at least one first tooth of the plurality of first teeth has a generally trapezoidal shape, at least one second tooth of the plurality of second teeth has a generally triangular shape, and at least one second tooth of the plurality of second teeth has a generally trapezoidal shape. <EOS>