Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...
Patent
1996-07-29
1998-07-14
Polutta, Mark O.
Surgery
Means and methods for collecting body fluids or waste material
Absorbent pad for external or internal application and...
6043851, A61F 1315
Patent
active
057796904
DESCRIPTION:
BRIEF SUMMARY
CROSS-REFERENCES TO RELATED APPLICATIONS
The application is filed under 35 U. S. C. .sctn.371 as the national stage application of international application PCT/SE94/01179 filed on Dec. 8, 1994, which designated the United States of America.
FIELD OF THE INVENTION
The present invention relates to a diaper which comprises a front part, a back part and an intermediate crotch part which includes an absorbent body joined to a bottom sheet of liquid-impermeable material, and a top sheet of liquid-permeable material which lies proximal to the wearer's body in use and which contains an opening located in the back and crotch part of the diaper and elastic devices, and which is not attached to the absorbent body at least within the region of said opening.
BACKGROUND OF THE INVENTION
Diapers in which the top sheet contains an opening are known to the art from AU-A-45217/85, EP-A2-0,357,298 and EP-A2-0,486,006 and are intended to avoid irritation of the skin as a result of excrement, e.g. faeces, coming into contact with the wearer's skin. According to these publications, this is achieved because as the elastic devices present provided in the top sheet contract, the absorbent body is deformed into a basin-like configuration while, at the same time, the top sheet is distanced from the bottom of the basin and forms a basin lid or cove which includes said opening. One problem with diapers of this kind is that the opening formed in the top sheet must be sufficiently large and sufficiently well situated as to ensure that excrement discharged by the wearer will fall down onto the absorbent body. There is a serious danger that any excrement which falls on the top sheet will leak from the diaper and irritate the wearer's skin.
SUMMARY OF THE INVENTION
The object of the present invention is to reduce the risk of excrement being deposited on one side of the opening in the top sheet to a greater extent than has hitherto been achieved.
This is achieved in accordance with the invention with a diaper of the kind defined in the introduction which is characterized in that two elastic devices extend divergently in relation to one another, from the front edge of the opening in the crotch part towards the back part and on both sides of the opening in the top sheet. This ensures that the side edges of the opening will be held apart reliably while the diaper is worn, so as to retain the intended width of the opening.
According to one preferred embodiment of the invention, two elastic devices extend divergently in relation to one another from the front edge of the opening in the crotch part to the front part of the diaper, and the elastic devices which extend divergently rearwards from the opening extend along the side edges of the opening. Furthermore, the elastic devices in the top sheet extend in the longitudinal direction of the diaper essentially from the forward diaper attachment of the top sheet essentially to the rear diaper attachment of said top sheet, and the two elastic devices that extend along the side edges of the opening continue to the front part of said diaper. The transverse distance between the side edges of the opening in the top sheet is preferably 3-6 cm at the excretion point. The absorbent body includes a main body of hourglass configuration and two side-bodies which are positioned laterally outside the main body on respective sides thereof and in the curved region of said main body and are enclosed between the bottom sheet and an inner fluid-permeable casing sheet.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described in more detail with reference to the accompanying drawings, in which
FIG. 1 is a schematic, perspective view seen obliquely from above of a first embodiment of an inventive diaper;
FIG. 2 is a schematic view from above of the diaper in FIG. 1 with the diaper shown in a flat state;
FIG. 3 is a schematic cross-sectional view of the diaper shown in FIG. 1;
FIG. 4 is a view corresponding to the view in FIG. 2 of the bottom sheet and the absorbent body of the diaper shown in
REFERENCES:
patent: 4662877 (1987-05-01), Williams
patent: 4892536 (1990-01-01), DesMarais et al.
patent: 4968312 (1990-11-01), Khan
patent: 4990147 (1991-02-01), Freeland
patent: 5062840 (1991-11-01), Holt et al.
patent: 5624422 (1997-04-01), Allen
Durant Benedicte
Gustafsson Anders
Svernlov Anna
Widlund Urban
Molnlycke AB
Polutta Mark O.
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