Disposable urinary and fecal waste containment product

• US 4,681,577 A
• Filed: 06/19/1985
• Issued: 07/21/1987
• Est. Priority Date: 09/23/1983
• Status: Expired due to Term

• Current Assignee: McNeil-PPC Incorporated (Johnson & Johnson)
• Original Assignee: Personal Products Co. (Johnson & Johnson)
• Inventors: Stern, Beth A., Holtman, Dennis C.
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): Vinyard, Sherri E.
• Application Number:
  US06/746,612
• Time in Patent Office: 762 Days
• Field of Search: 604/348, 604/347, 604/385, 604/369, 604/387, 604/368, 604/378, 604/397, 604/393, 604/370, 604/379, 604/380
• US Class Current: 604/378
• CPC Class Codes: A61F 13/47 Sanitary towels, incontinence pads or napkins A61F13/49 takes precedence
• CPC Class Codes: A61F 13/511 Topsheet, i.e. the permeable cover or layer facing the skin
• CPC Class Codes: A61F 2013/5055 Possibility of doubling or putting in new pieces
• CPC Class Codes: A61F 2013/51042 with hydrophobic and hydrophilic fibres
• CPC Class Codes: A61F 2013/51409 being a film
• CPC Class Codes: A61F 2013/530131 being made in fibre but being not pulp
• CPC Class Codes: A61F 2013/530802 characterized by the foam or sponge other than superabsorbent A61F2013/530649 takes precedence
• CPC Class Codes: A61F 5/4401 with absorbent pads diapers A61F13/49

Abstract

The invention provides a disposable urinary and fecal waste containment product suitable for active adults. The product has a high liquid impact capacity, high liquid retention, contains fecal waste without leakage and allows the skin of the wearer to remain dry. The product has a liquid-impermeable substantially flexible shell containing a superstructure associated with an absorbent medium and a rear portion with a superstructure of three-dimensional characteristics with sufficient friction to prevent movement of fecal matter laterally.

Claims

1. A disposable urinary and fecal waste containment product comprising a liquid-impermeable substantially flexible shell having a depth of at least about 0.25 inch;

having a front urinary portion and a rear fecal portion;

said front portion being narrower and having an area less than 70% of the area of said rear portion, said front urinary portion having a first superstructure placed in and substantially filling said front portion of said shell and an absorbent medium in contact with at least a portion of said superstructure;

said superstructure being a corrugated fibrous web comprising hydrophobic wet resilient, dry resilient fibers, which is non-collapsible when wet and capable of maintaining a void volume when wetted; and

said rear portion having a second superstructure placed in and substantially filling said rear portion of said shell said superstructure being non-collapsible when wet and capable of maintaining a void volume when wetted said second superstructure being comprised of a fibrous web, open cell foam, a fibrous pile structure, sliver knit, malivlieves, split corrugated web tufted yarn, dimensioned needle punch or mixtures thereof;

said second superstructure being secured in said rear portion of said shell.

2. The disposable product of claim 1 having a liquid barrier between said rear portion and said front portion.

3. The disposable product of claim 1 wherein said superstructure of said rear portion is comprised of a split corrugated web comprised substantially of polyester fibers.

4. The disposable product of claim 1 wherein said absorbent medium is comprised of hydrophilic fibers, nonwoven web of hydrophilic fibers, wadding, tissue, peat moss, superabsorbent material, or mixtures thereof.

5. The disposable product of claim 1 wherein said shell is an ethylene-containing polymer foam shell having a thickness of about 1/64 inch to about 1/4 inch.

6. The disposable product of claim 5 wherein said shell is a thermal formable substance.

7. The disposable product of claim 1 wherein said corrugated fibrous web is comprised of polyester fibers.

8. The disposable product of claim 1 wherein said absorbent medium is comprised of superabsorbent material.

9. The disposable product of claim 1 wherein said absorbent medium is comprised of loosely compacted wood pulp fibers.

11. The disposable product of claim 8 wherein said superabsorbent material is comprised of polysodium acrylate.

12. The disposable product of claim 1 wherein said shell is a cross-linked polyethylene foam shell having a thickness from about 1/64 inch to about 1/4 inch.

13. The disposable product of claim 1 wherein said shell in said front portion has a depth from about 0.5 to about 2.5 inches.

14. The disposable product of claim 13 wherein said shell in said front portion has a depth from about 0.5 to about 1.5 inches.

10. A disposable urinary and fecal waste containment product comprising a liquid-impermeable substantially flexible shell having a depth of at least about 0.25 inch;

having a front urinary portion and a rear fecal portion;

said front portion being narrower and having an area less than 70% of the area of said rear portion, said front urinary portion having a first superstructure comprising polyester fibers, placed in and substantially filling said front portion of said shell, and an absorbent medium comprising acrylic fibers and superabsorbent material, in contact with at leaast a portion of said superstructure;

said polyester fibers and said acrylic fibers forming a two layered web which is a corrugated web;

said superstructure being non-collapsible when wet and capable of maintaining a void volume when wetted; and

said rear portion having a second superstructure placed in and substantially filling said rear portion of said shell said superstructure being non-collapsible when wet and capable of maintaining a void volume when wetted said second superstructure being comprised of a fibrous web, open cell foam, a fibrous pile structure, sliver knit, malivlieves, split corrugated web, tufted yarn, dimensioned needle punch or mixtures thereof;

said second superstructure being secured in said rear portion of said shell.

15. A disposable urinary and fecal waste containment product comprising a crosslinked ethylene-containing polymer foam liquid-impermeable substantially flexible shell having a depth of at least about 0.25 inch;

having a front urinary portion and a rear fecal portion;

said front portion being narrower and having an area less than 70% of the area of said rear portion, said front urinary portion having a first superstructure placed in and substantially filling said front portion of said shell and an absorbent medium in contact with at least a portion of said superstructure said absorbent medium comprising a corrugated layer of acrylic fibers and superabsorbent material;

said superstructure being non-collapsible when wet and capable of maintaining a void volume when wetted; and

said rear portion having a second superstructure placed in and substantially filling said rear portion of said shell said second superstructure being non-collapsible when wet and capable of maintaining a void volume when wetted, said second superstructure being comprised of a fibrous web, open cell foam, a fibrous pile structure, sliver knit, malivlieves, split corrugated web, tufted yarn, dimensioned needle punch or mixtures thereof;

said second supersturcture being secured in said rear portion of said shell.

16. The disposable diaper of claim 15 having a liquid barrier between said rear portion and said front portion.

17. The disposable product of claim 15 wherein said supersturcture of said rear portion is comprised of a split corrugated web comprised substantially of polyester fibers.

18. The disposable product of claim 15 wherein said absorbent medium is comprised of hydrophilic fibers, nonwoven web of hydrophilic fibers, wadding, tissue, peat moss, superabsorbent material, or mixtures thereof.

19. The disposable product of claim 15 wherein said first superstructure is comprised of hydrophobic, wet resilient, dry resilient, fibers, fibrous web, foam or mixtures thereof.