US 12,478,394 B2
Medical systems, devices, and related methods
Nathan T. Cummings, Worcester, MA (US); Judith B. Frontin, Somerville, MA (US); and Jared Robertson, Boston, MA (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on May 18, 2022, as Appl. No. 17/747,750.
Claims priority of provisional application 63/190,030, filed on May 18, 2021.
Prior Publication US 2022/0370089 A1, Nov. 24, 2022
Int. Cl. A61B 17/22 (2006.01)
CPC A61B 17/22031 (2013.01) [A61B 2017/22035 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A medical device comprising:
a first body having a lumen and a central longitudinal axis;
a second body positioned at least partially within the lumen of the first body; and
an arm assembly including:
a first arm coupled to the first body and extending distal to the first body; and
a second arm coupled to the second body and extending distal to the second body, wherein a distal end of the first arm is coupled to a distal end of the second arm;
wherein the first arm includes a first protrusion on a surface of the first arm, and the second arm includes a second protrusion on a surface of the second arm, and wherein the first protrusion and the second protrusion extend radially-inward towards the central longitudinal axis;
wherein distal movement of the second body, relative to the first body, is configured to move the distal end of the first arm and the distal end of the second arm radially-outward away from the central longitudinal axis;
wherein proximal movement of the second body, relative to the first body, is configured to move the distal end of the first arm and the distal end of the second arm radially-inward towards the central longitudinal axis; and
wherein the first and second protrusions are configured to move proximally and distally relative to each other in response to movement of the second body relative to the first body, wherein a proximal end of the first arm and a proximal end of the second arm are positioned adjacent to each other when the medical device is in a neutral configuration, and wherein the first protrusion is positioned on the proximal end of the first arm, and wherein the second protrusion is positioned on the proximal end of the second arm.