CPC A61B 17/320725 (2013.01) [A61B 17/320016 (2013.01); A61B 18/12 (2013.01); A61B 17/22031 (2013.01); A61B 2017/22069 (2013.01); A61B 2017/22097 (2013.01); A61B 2017/2212 (2013.01); A61B 2017/32004 (2013.01); A61B 2017/320716 (2013.01); A61B 2018/00404 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/00982 (2013.01); A61B 2018/122 (2013.01); A61B 18/1492 (2013.01); A61B 2090/3735 (2016.02); A61B 2090/3782 (2016.02); A61M 25/104 (2013.01); A61M 29/02 (2013.01); A61N 7/022 (2013.01)] | 16 Claims |
1. A device for modifying intraluminal tissue, the device comprising:
an outer shaft comprising a proximal portion, a distal portion, a lumen extending between the proximal portion and the distal portion, and a plurality of capture members extending along a length of the distal portion, wherein each of the plurality of capture members includes a distal joint at a distal terminus of the corresponding capture member, a proximal joint at a proximal terminus of the corresponding capture member, and an intermediate joint positioned between the distal joint and the proximal joint; and
an inner shaft positioned within the lumen, wherein a distal end region of the inner shaft is fixed to a distal end region of the outer shaft such that proximal translation of the inner shaft with respect to the outer shaft causes each of the plurality of capture members to actuate outwardly away from a longitudinal axis of the outer shaft, wherein, once actuated, each of the plurality of capture members comprises:
a first portion between the proximal joint and the intermediate joint and having a first curved profile, wherein the first curved profile is concave away from the proximal portion of the outer shaft; and
a second portion between the intermediate joint and the distal joint and having a second curved profile different from the first curved profile.
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