Abstract: A medical device may include a plurality of branch members having moveable distal portions. The medical device also may include a first moveable member movably connected to the distal portion of one of the branch members at a first location along the branch member. The first moveable member may have first and second proximal portions extending from the first location and disposed within one or more lumens of one or more of the other branch members. The moveable distal portions of the plurality of branch members and the first moveable member may form a first snare movable between a collapsed configuration and an expanded configuration.

Abstract: A medical device may include a distal end having an expandable grasping portion with a plurality of movable branch members, and at least one filament connected to and slidably movable within at least a portion of the plurality of movable branch members. The proximal end of the device may include a handle having an actuation guide and an actuation selector connected to and movable along the actuation guide. The actuation selector may be coupled to ends of the at least one filament and may be configured to exert a force on the filament to vary the size of the grasping portion between a plurality of pre-selected discrete configurations of the grasping portion. In addition, the medical device may include a sheath member extending from the distal end toward the proximal end. The proximal ends of the plurality of movable branch members may be disposed within the sheath member.

Abstract: A device for collecting a tissue sample includes a needle extending longitudinally from a proximal end to a distal end and including a channel extending therethrough, the distal end including a pair of jaws, at least a first one of the jaws being movable relative to the other between an open configuration, in which the jaws are open to receive tissue therebetween, and a closed configuration in which the jaws are drawn toward one another to collect a tissue sample therein.

Abstract: A medical device may include a distal end having an expandable grasping portion with a plurality of movable branch members, and at least one filament connected to and slidably movable within at least a portion of the plurality of movable branch members. The proximal end of the device may include a handle having an actuation guide and an actuation selector connected to and movable along the actuation guide. The actuation selector may be coupled to ends of the at least one filament and may be configured to exert a force on the filament to vary the size of the grasping portion between a plurality of pre-selected discrete configurations of the grasping portion. In addition, the medical device may include a sheath member extending from the distal end toward the proximal end. The proximal ends of the plurality of movable branch members may be disposed within the sheath member.

Abstract: A medical device may include a plurality of branch members having moveable distal portions. The medical device also may include a first moveable member movably connected to the distal portion of one of the branch members at a first location along the branch member. The first moveable member may have first and second proximal portions extending from the first location and disposed within one or more lumens of one or more of the other branch members. The moveable distal portions of the plurality of branch members and the first moveable member may form a first snare movable between a collapsed configuration and an expanded configuration.