Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...
Patent
1996-12-30
2000-12-05
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
061560227
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
Various means have been previously suggested for preventing transfer of faeces from a rear area of the absorbent article to the front urine absorbing area of the same and to reduce the risk of urine flowing on the inside of the article from the front area thereof to the rear faeces receiving area.
As examples there can be mentioned various forms of transverse barriers arranged on the inside of the article, said barriers protruding up from the inside of the article and thus forming an obstacle for urine or faeces to pass and be directly mixed together on the inside of the article.
For example, WO 92/14429 reveals an absorbent disposable article, where the transverse, bellows-like folds on the inside of the article are made for rapid absorption of urine in pockets between the folds and to form with its outer edges a liquid barrier to prevent urine from flowing along the inside of the article to the rear, faeces receiving area. These bellows-like folds are oriented so that they lie partially overlapping each other in such a manner that, as seen in the direction from the rear portion of the article towards the front portion, the rear bellows-like fold overlaps partially the fold lying immediately in front thereof, etcetera, whereby urine can be caught in the pockets between the overlapping folds and be conducted down into the underlying absorbent body. Such a barrier can, however, not prevent transfer of faeces from the rear portion of the article to its front portion.
SUMMARY OF THE INVENTION
A purpose of the present invention is to achieve an improved barrier, which can effectively brake and stop transfer of faeces from a rear portion of the absorbent article to the front urine absorbing area.
For this purpose, the article described by way of introduction is characterized in that the barrier means comprises at least two strip-shaped, elastic elements lying adjacent to each other and transversely to the article, said strips in a flat state of the article being pretensioned in their longitudinal direction and extending, at least in the use state of the article, backwards and out from the article, relative to a longitudinal side edge of the strip-shaped elements, said edge facing towards the article. By virtue of the fact that the strip shaped elements are elastic and pretensioned in their own longitudinal direction in the flat state of the article and are placed so that their free longitudinal edges extend backwards on the article, the strip shaped elements rise, when the article is worn, obliquely upwards and backwards to form pockets between the elements, the openings of which face towards the rear portion of the article, whereby forward movement of faeces on the inside of the article can be effectively prevented.
Preferably, the strip shaped barrier elements overlap each other partially, at least on the flat state of the article.
The strip shaped elements themselves can be made in a number of manners within the scope of the invention. According to a preferred embodiment, the strip shaped elements have the shape of bellows folds in the inner proximal cover layer. Alternatively, the strip shaped elements can have the form of bellows folds in a surface layer applied on top of the proximal cover layer. The strip shaped elements can also consist of separate strips applied on the proximal cover layer.
The strip shaped barrier elements are suitably fixed to the article at its lateral edges, for example by glueing in a flat state of the elements.
The elastic characteristic of the strip shaped elements can be achieved, for example, by laying an elastic element in the outer free longitudinal edge of each strip shaped element, whereby the strip when formed or applied to the article in a flat state is imparted a certain amount of pretensioning, which when the article is worn strives to lift up the strips somewhat from the inner surface material to a rearwardly inclined position to form a plurality of parallel pockets between the strip shaped elements, said pockets forming an effective br
REFERENCES:
patent: 3848599 (1974-11-01), Schear
patent: 5129893 (1992-07-01), Thoren
patent: 5554142 (1996-09-01), Dreier et al.
patent: 5653703 (1997-08-01), Roe et al.
Polutta Mark O.
SCA Molnlycke AB
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