Patent ID: 9247958
Filing Date: 2016-02-02
CPC Classification: A61B,A61F

Claim Text:
1. A device to extract an element contained in a cavity comprising: a bag comprising an opening for receiving the element; an outer layer comprising an open end facing an opposite direction to the opening of the bag, wherein the outer layer is positioned at or near the open end of the bag such that the outer layer overlaps and extends along a portion of a surface of the bag and wherein the outer layer is configured to slide relative to the portion of the surface of the bag that the outer layer overlaps; and at least one inflatable chamber distinct from the outer layer and positioned at or near the open end of the bag wherein the volume of the chamber is variable so as to reduce an inner circumference of the bag when the chamber is inflated and wherein the chamber has an outer surface facing radially outward and at least a portion of the outer layer extends over the outer surface of the chamber, and wherein the outer layer is configured to slide relative to the outer surface of the chamber.