	US 12,446,885 B2
	Extendable caps for endoscopic closure devices
Paul Smith, Smithfield, RI (US); Richard Paul Mansfield, Sterling, MA (US); Alexander Joseph Burnham, Somerville, MA (US); and Matthew Bradley Adams, Harvard, MA (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed on Sep. 20, 2023, as Appl. No. 18/470,947.
Claims priority of provisional application 63/379,394, filed on Oct. 13, 2022.
Prior Publication US 2024/0122599 A1, Apr. 18, 2024
Int. Cl. A61B 17/12 (2006.01); A61B 17/00 (2006.01); A61B 90/00 (2016.01)

CPC A61B 17/12013 (2013.01) [A61B 90/37 (2016.02); A61B 2017/00367 (2013.01); A61B 2090/3782 (2016.02)]

20 Claims

1. An assembly for an endoscopic closure device, comprising:

a cap including a distal portion comprising a recess configured to receive a target tissue for capture by the closure device and a proximal portion sized and shaped to fit over a distal face of an endoscope, the proximal portion being formed of a flexible material and comprising at least one fold between a first region and a first end of a second region, the distal portion and the proximal portion being connected at a joint at a proximal end of the distal portion and a second end of the second region,

wherein the cap expands from a collapsed state in which an angle of the first region relative to a longitudinal axis of the endoscope is at a minimum to an expanded state in which the angle is increased, wherein an inner surface of the first region is reflective and, based on the angle and reflectivity of the first region, an endoscopic camera on the distal face of the endoscope is provided an increased field of view in the expanded state relative to the collapsed state, and

wherein the closure device is deployable to capture the target tissue received in the recess of the distal portion when the cap is in the expanded state via an actuation mechanism extending through a working channel of the endoscope into the distal portion.