Patent ID: 8684983
Filing Date: 2014-04-01
Classification: A61F

Abstract:
1. A convex shell for use in a base plate of an ostomy appliance to be worn by an ostomate, the convex shell comprising: an annular ring with a convex shape contour on an inner surface facing the ostomate having an outer edge and an inner edge defining a through-going hole having a center axis, said ring having a longitudinal length and a lateral width, said ring having a first flexibility around a first axis that is perpendicular to the center axis of the through-going hole, said first axis extending substantially parallel with said longitudinal length, and a second flexibility around a second axis different than the first axis, said first flexibility being greater than said second flexibility, the second axis also being perpendicular to the center axis of the through-going hole, the annular ring including at least four transition sections defined by grooves that extend longitudinally across the annular ring, each groove extending from adjacent the inner edge of said through-going hole toward the outer edge of the ring to divide the annular ring into at least a first segment, a second segment, a third segment, and a fourth segment, said grooves configured to produce controlled bending of the shell along the grooves, wherein the convex shell includes an outer planar surface extending in a first plane perpendicular to the center axis of the through-going hole, the outer planar surface extending radially inwards from the outer edge and transitioning into an intermediate slanting surface, the intermediate slanting surface extending radially inwards from the outer planar surface towards an inner planar surface, and the inner planar surface extending in a second plane perpendicular to the center axis of the through-going hole and extending radially from the intermediate slanting surface towards the inner edge defining the through-going hole, said intermediate slanting surface forming said convex shape contour on the inner surface of the ring.