CPC A61B 1/00148 (2022.02) [A61B 1/0014 (2013.01); A61B 1/041 (2013.01); A61B 17/0401 (2013.01); A61B 17/0469 (2013.01); A61B 17/11 (2013.01); A61B 17/1114 (2013.01); A61B 2017/00867 (2013.01); A61B 2017/0408 (2013.01); A61B 2017/0409 (2013.01); A61B 2017/0414 (2013.01); A61B 2017/0454 (2013.01); A61B 2017/0464 (2013.01); A61B 2017/1139 (2013.01); A61N 1/05 (2013.01); A61N 1/3601 (2013.01); A61N 1/36007 (2013.01)] | 20 Claims |
1. A medical device for forming a fluid pathway, comprising:
a hollow member defining a longitudinally extending lumen configured to receive a penetrating member of a delivery catheter for deployment of the medical device, the hollow member comprising a middle portion and a first retention member at a first end portion of the hollow member adjacent a first end of the middle portion, and the hollow member configured to move from a first configuration to a second configuration such that:
a length of the middle portion decreases;
a diameter of the lumen increases; and
the first retention member radially expands into a first curved surface, the first curved surface configured to atraumatically engage a first tissue, wherein, in the second configuration, terminal ends of the first retention member bend away from the first curved surface and at least a portion of the first retention member extends over the middle portion.
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