The medical device includes an elongate member having a proximal end and a distal end and a lumen deployed through the elongate member. The medical device further includes an opening in communication with the lumen and deployed at a distal end of the elongate member, and a pressing element deployed with the lumen. The medical device further includes a plurality of alignment references that are deployed within the lumen and distal to the push element, and a separation mechanism that is deployed at the distal end of the elongate member. The separation mechanism is configured to deploy at least one alignment reference by applying a separation force.医療装置は、近位端と遠位端とを有する長尺状部材と、前記長尺状部材内を通して展開される管腔とを含む。前記医療装置は、更に、前記管腔と連通し、前記長尺状部材の遠位端に展開される開口部と、前記管腔とともに展開される押圧要素とを含む。前記医療装置は、更に、前記管腔内かつ前記押圧要素の遠位側に展開される複数の位置合わせ基準物と、前記長尺状部材の遠位端に展開される分離機構とを含む。前記分離機構は、分離力を応用して少なくとも１つの位置合わせ基準物を展開するように構成される。
