Abstract
A device for collecting and absorbing urine, comprising a laminate composed of several layers, in which an outer plastic casing in combination with a material permeable to urine form a space enclosing an absorption body. The absorption body includes at least one super-absorbent laminate which may be a tissue integrated with a super-absorbent polymer and which upon absorption forms a gel. The space surrounding the absorption body is designed to permit expansion when the absorption body assumes the gel phase.
Filing date: Feb 11, 1988
Issue date: Dec 12, 1989
Inventor: Lars Mattsson
Primary Examiner: Sharon Rose
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What is claimed is:
1. A device for collecting and absorbing urine, comprising:
- a laminate having a plurality of layers including a layer of outer plastic casing and a layer of material permeable to urine connected to said layer of plastic casing by sealing along the peripheral edges of each layer, said sealing forming an outer seam contour along the top, bottom and sides of the device;
- said sealing defining an expandable space comprising the interior of the laminate;
- an absorption body located in the expandable space comprising tissue integrated with a super-absorbent polymer which upon absorption expands to form a gel;
- said absorption body being narrower than said laminate and located centrally within said laminate such that the difference between the outer seam contour and the absorption body forms outer flaps along the sides of the laminate;
- said laminate being folded a first time transversely to said outer flaps approximately near the center of said laminate so that the side edges of said laminate are in contact and the outer flaps overlap themselves in parallel; said side edges of said laminate being sealed together where they contact forming a pocket;
- said outer flaps being folded over the absorption body at an angle with respect to the outer seam contour of the device; and
- a patch of releasable adhesive located between the outer flaps and the main absorption body for adhering the outer flaps to the main absorption body prior to said absorption and for releasing said outer flaps from said absorption body when the absorption body assumes the gel phase, said released outer flaps automatically unfolding to achieve an expansion of the pocket.
2. The device of claim 1, further comprising a spillage insert located in said pocket.
3. A device for collecting and absorbing urine according to claim 1, wherein said patch of adhesive is an elongated vertically orientated patch of adhesive.
4. A device for collecting and absorbing urine according to claim 3, wherein said elongated vertically orientated patch of adhesive is located near the outer seam contour at the top of the device.
5. A device according to claim 4, comprising a layer of porous structure arranged substantially over the absorption body to mechanically spread the urine across the absorption body, the layer of porous structure comprising a substantially elastic, non- absorbent material, preferably a foam plastic, having open cells.