Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...
Patent
1996-06-05
1998-08-11
Polutta, Mark O.
Surgery
Means and methods for collecting body fluids or waste material
Absorbent pad for external or internal application and...
6043852, A61F 1315
Patent
active
057921300
DESCRIPTION:
BRIEF SUMMARY
CROSS-REFERENCES TO RELATED APPLICATIONS
This application is filed under 35 U.S.C. .sctn. 371 as the national stage application of International application PCT/SE94/01178, filed on Dec. 8, 1994, which designated the United States of America.
FIELD OF THE INVENTION
The present invention relates to a diaper having a front part, a back part and an intermediate crotch part which includes an absorbent body which is joined to a fluid-impermeable bottom sheet and to a fluid-permeable top sheet which lies proximal to the wearer's body in use and which includes an opening situated in the back part and crotch part of the diaper and stretch-mounted elastic devices, and which is not attached to the absorbent body at least within the region of said opening, wherein the absorbent body includes a main body which is provided with a leg recess on respective sides thereof, and two side-bodies which are placed laterally outside the main body on respective sides thereof and in respective leg recesses.
BACKGROUND OF THE INVENTION
One such diaper is known from EP-A2-0,486,006 and is intended to avoid irritation of the wearer's skin as a result of excrement or urine coming into contact therewith. According to this publication, this is achieved by deformation of the absorbent body into a basin-like shape as the elastic devices provided in the top sheet contract, at the same time as the top sheet is distanced from the bottom of the basin and forms an apertured basin lid or cover. One problem with diapers of this kind is that the opening or aperture in the top sheet must be so large and so positioned as to ensure that excrement from the wearer will fall down onto the absorbent body. If excrement lands on the top sheet, there is a serious risk of leakage and irritation of the skin. Another problem is one of constructing the diaper so that the diaper will be deformed appropriately as the top sheet is shortened by contraction of the elastic devices, and to prevent the whole of the absorbent body coming into abutment with the top sheet during the use of the diaper.
An object of the present invention is to solve or at least greatly reduce these problems.
SUMMARY OF THE INVENTION
This object is achieved in accordance with the invention with a diaper of the kind defined in the introduction which is characterized in that the absorbent body is enclosed between the bottom sheet and an inner fluid-permeable casing sheet, said sheets being joined mutually at parts which lie outside the absorbent body and carry stretch-mounted elastic elements along their side edges within at least the central part of the diaper; in that each side-body has an arcuate edge on the side thereof proximal to the leg recess of the main body; in that the side-bodies are spaced from the main body; and in that the inner casing sheet is joined to the bottom sheet in those gaps that are formed in the leg recesses between the main body and the side-bodies.
According to one preferred embodiment of the invention, the main body of the absorbent body includes an upper layer which lies proximal to the top sheet and a bottom layer which extends longitudinally at least along the leg recesses of the main body and has greater rigidity than the top layer. The sides of the side-bodies that lie distal from the leg recesses in the main body also have arcuate edges and the side-bodies are made from an absorbent deformable material. When the diaper is held flat with elastic devices and elements stretched, the sides of the side-bodies distal from the main body will preferably have straight edges. In one variant, the circle-segmental side-bodies include a row of wedge-shaped recesses on the straight side thereof distal from the main body.
BRIEF DESCRIPTION OF THE INVENTION
The invention will now be described in more detail with reference to the accompanying drawings, in which
FIG. 1 is a perspective schematic view of a first embodiment of an inventive diaper seen obliquely from above;
FIG. 2 illustrates the diaper of FIG. 1 schematically from above and shows the diaper in a f
REFERENCES:
patent: 4834737 (1989-05-01), Khou
patent: 5062840 (1991-11-01), Holt et al.
patent: 5269775 (1993-12-01), Freeland et al.
patent: 5624422 (1997-04-01), Allen
Svernlov Anna
Widlund Urban
Molnlycke AB
Polutta Mark O.
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