Biopsy jaw assemblies for biopsy forceps devices and other tools are disclosed. In some embodiments, the jaw assemblies comprise first and second jaws pivotally movable between respective open and closed positions. One or more guides are configured to urge one or both jaws toward their respective closed positions to enhance the clamping force of the jaws. In some embodiments of biopsy forceps devices, the first and second jaws are configured to promote adhesion of the one or more biopsy samples to one of the jaws. A collection member comprising an adherent portion for collecting the one or more biopsy samples from the biopsy forceps device is also disclosed.
