Abstract: A modular fixed cutter drill bit for drilling an earthen formation has a central axis and a cutting direction of rotation about the central axis. The drill bit includes a bit body configured to rotate about the central axis in the cutting direction of rotation. The bit body includes a bit face. In addition, the drill bit includes a blade extending radially along the bit face. The blade has a leading side relative to the cutting direction of rotation, a trailing side relative to the cutting direction of rotation, and a cutter-supporting surface extending from the leading side to the trailing side. The blade includes a socket extending from the leading side of the blade and penetrating the cutter-supporting surface of the blade. The socket has a central axis, an open end at the leading side of the blade, and a closed end distal the leading side of the blade. Further, the drill bit includes a cutter element assembly removably mounted to the blade and extending from the cutter-supporting surface of the blade.

Abstract: A cleaning adapter for an endoscope is provided. The cleaning adapter comprises a main stem comprising a first through hole extending transversely through the main stem, a second through hole extending transversely through the main stem, and a channel within the main stem fluidly coupling the first through hole to the second through hole. In some embodiments, a tag for an endoscope valve is provided. Methods and kits are also provided.

Abstract: A cleaning adapter for an endoscope is provided. The cleaning adapter comprises a main stem comprising a first through hole extending transversely through the main stem, a second through hole extending transversely through the main stem, and a channel within the main stem fluidly coupling the first through hole to the second through hole. In some embodiments, a tag for an endoscope valve is provided. Methods and kits are also provided.

Abstract: A cleaning adapter for an endoscope is provided. The cleaning adapter comprises a main stem comprising a first through hole extending transversely through the main stem, a second through hole extending transversely through the main stem, and a channel within the main stem fluidly coupling the first through hole to the second through hole. In some embodiments, a tag for an endoscope valve is provided. Methods and kits are also provided.