According to one aspect, a medical device including a shaft having a proximal and a distal end. The medical device may also include a handle coupled to the proximal end of the shaft. The medical device may further include a body at the distal end of the shaft. The body may have a wall defining a lumen within the body, and the lumen may have a longitudinal axis. The wall may include a protrusion at the distal end of the body, and the protrusion may be defined by a gap in the wall and may have a sharp portion configured to grasp tissue. The gap may extend proximally from the distal end of the body, and edges of the wall defining the gap may be transverse to the longitudinal axis.
