A connection apparatus for a medical device includes a first connection member having a first end and a second end with the first connection member defining at least one channel adjacent the first end. The at least one channel having a first portion extending in an axial direction and a shoulder adjacent to the first end of the first connection member that defines a channel entry. The at least one channel having a second portion extending in a transverse direction relative to the axial direction. The connection apparatus further including a second connection member having a first end and a second end and at least one protrusion adjacent the first end. The shoulder is configured to guide the at least one protrusion of the second connection member into the channel entry regardless of the orientation of the at least one protrusion relative to the channel entry.