Patent ID: 9585550
Date: 2017-03-07
CPC Classifications: A61B,A61M

Claim:
1. A medical apparatus for location at least partly within a body passage and for expanding the body passage, the apparatus comprising: a tubular guide member extending between a leading end and a trailing end, wherein the trailing end having an inlet providing access into the tubular guide member, the tubular guide member further having an aperture in a side wall thereof for permitting access into the body passage from the inlet at the trailing end; a handle secured to the trailing end of the guide member; an actuating device mounted to the handle rearwardly of the trailing end of the guide member; and an expansion device comprising a pair of expansion arms extending along respective edge regions of the aperture, wherein one end of each arm is secured to the leading end of the guide member and an opposite end of each arm extends rearwardly of the trailing end of the guide member to engage the actuating device, wherein the arms are configured to be moved by the actuating device between a collapse position and an expansion position by controllably elastically deforming said expansion arms to expand the body passage in the region of the aperture by pushing a wall of the body passage away from the tubular guide member, the expansion arms being uninterruptedly separated by the aperture.