To control bending in a skin plate for use in an ostomy appliance
First Claim
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.
1 Assignment
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Accused Products
Abstract
A convex shell for use in a base plate of an ostomy appliance includes an annular ring defined by an outer edge and an inner edge of defining a through-going hole. The annular ring has at least four transition sections extending transversely across the annular ring, dividing the annular ring into at least a first, second, third and fourth segment. By changing the characteristics of the convex shell in such sections, it is possible to control the bending of the shell. The shell also makes it possible to keep the area around the stoma more stable and resistant towards collapsing, while providing improved flexibility in the peristomal area for better comfort.
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Citations
20 Claims
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1. A convex shell for use in a base plate of an ostomy appliance to be worn by an ostomate, the convex shell comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A convex skin plate as part of an ostomy appliance to be worn by an ostomate, the convex skin plate comprising:
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a backing layer having a skin friendly adhesive thereon; and a convex shell attached to the backing layer, said convex shell including, an elliptical ring with a convex shape contour on an inner surface facing the ostomate, said ring as made having an elliptical outer edge and an elliptical inner edge defining a through-going hole having a center axis, said elliptical ring having a length defining a longitudinal axis that is perpendicular to the center axis and a width defining a lateral axis that is also perpendicular to the center axis, said length being greater than said width, said ring having a first flexibility around the longitudinal axis and a second flexibility around the lateral axis, said first flexibility being greater than said second flexibility; and the elliptical ring including at least four transition sections that extend longitudinally across at least part of the elliptical ring, each transition section extending from adjacent the inner edge of said through-going hole toward the outer edge of the ring to divide the elliptical ring into at least a first segment, a second segment, a third segment, and a fourth segment, said transition sections providing for controlled bending of the shell, wherein the transition sections in said convex shell are formed used to manufacture the shell so that some of the segments are more rigid than other of the segments. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification