A medical system includes an insertion device and an insertion device handle. The insertion device handle has a proximal portion and a distal portion, with a delivery shaft extending from the distal portion. The medical system also includes a medical device, including a spool and a medical device handle. The medical device handle has a central opening, and the spool and the medical device handle are rotatably movable to one another and form a channel. The medical system includes an adapter couplable to a portion of the insertion device handle, and the adaptor includes a post element to be received within the central opening of the medical device handle.
