CPC A61B 17/3417 (2013.01) [A61B 1/3137 (2013.01); A61B 17/00234 (2013.01); A61B 17/06166 (2013.01); A61B 17/3403 (2013.01); A61B 17/3478 (2013.01); A61F 2/06 (2013.01); A61F 2/062 (2013.01); A61F 2/2415 (2013.01); A61F 2/2475 (2013.01); A61B 1/126 (2013.01); A61B 17/083 (2013.01); A61B 17/32037 (2013.01); A61B 2017/0034 (2013.01); A61B 2017/00557 (2013.01); A61B 2017/00783 (2013.01); A61B 2017/00867 (2013.01); A61B 2017/22071 (2013.01); A61B 2017/320048 (2013.01); A61B 2017/346 (2013.01); A61B 2017/3413 (2013.01); A61B 2017/3456 (2013.01); A61B 2090/3784 (2016.02); A61B 2090/3945 (2016.02); A61B 2217/007 (2013.01)] | 11 Claims |
1. A method for accessing a wall of a blood vessel, the method comprising:
intravascularly positioning a distal portion of an elongated shaft of a treatment device in the blood vessel at a puncture site;
advancing a visualization device through a visualization lumen of the elongated shaft to identify the puncture site;
expanding an expansion member on the elongated shaft to move an exit port of a tool lumen of the elongated shaft to be substantially in line with a longitudinal segment of the wall of the vessel and place a tissue engaging surface of an open trough against the wall of the blood vessel, wherein the open trough extends distally from the exit port;
advancing a first tool through the tool lumen beyond the exit port to form an intramural pocket between at least a first portion and a second portion of the wall of the blood vessel; and
delivering a fluid into the intramural pocket via the first tool.
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