Absorbent article having apertures for fecal material

• US 6,423,884 B1
• Filed: 10/11/1996
• Issued: 07/23/2002
• Est. Priority Date: 10/11/1996
• Status: Expired due to Term

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Inventors: Oehmen, Heidi Ann
• Primary Examiner(s): Weiss, John G.
• Assistant Examiner(s): REICHLE, KARIN M
• Application Number:
  US08/730,648
• Time in Patent Office: 2,111 Days
• Field of Search: 604/369, 604/373, 604/378-385, 604/393-396, 604/385.01, 604/385.101, 604/385.19
• US Class Current: 604/369
• CPC Class Codes: A61F 13/495 with faecal cavity

Abstract

An absorbent article includes an outer cover and a bodyside liner. A fecal retaining structure having at least one aperture is mounted in the rear portion of the absorbent article. The retaining structure has at least one, preferably multiple, apertures sized to retain exudates from a typical bowel movement and to displace such exudates from the skin of the user. The fecal retaining structure preferably has a surface layer on the outer surface which contacts the body of the user. The surface layer has a slick surface that assists in moving fecal material into the apertures. An absorbent core may be mounted in the absorbent article, especially in the front portion of the absorbent article.

Claims

1. A fecal material retaining structure for mounting on a chassis of an absorbent article which is to be worn on a body of a wearer, said fecal material retaining structure comprising:

(a) a surface layer having a first surface, and a second surface which opposes the first surface;

(b) at least one first layer made of a first material, wherein said at least one first layer has a third surface, and a fourth surface which opposes the third surface, said third surface of said at least one first layer being secured to said first surface of said surface layer;

(c) at least one second layer made of a second material wherein said at least one second layer has a fifth surface, and a sixth surface which opposes the fifth surface, said fifth surface of said at least one second layer being secured to said fourth surface of said first layer; and

(d) at least two apertures formed through all of said surface layer, said at least one first layer, and said at least one second layer, said at least two apertures being configured to have a minimum depth of at least about 0.38 inch and a maximum depth of larger than 1.0 inch and to have an overall surface area from about 25% to about 75% of a fecal material retaining structure as defined within an outer perimeter of said fecal material retaining structure to receive and retain a solids portion of fecal material and any liquids immobilized therein when said fecal material retaining structure is mounted on the absorbent article and worn by the wearer of the absorbent article and wherein said at least two apertures are adapted to displace the solids portion of fecal material and any liquid immobilized therein from skin of the wearer of the absorbent article to prevent the solids portion of the fecal material and any liquid immobilized therein from spreading outwardly along an outside surface of said fecal material retaining structure to cover an increased surface area of the skin of the wearer of the absorbent article.

2. The fecal material retaining structure as in claim 1, said surface layer having a critical surface tension for wetting, said surface layer critical surface tension for wetting being less than a critical surface tension for wetting of fecal material from a breast fed infant.

3. The fecal material retaining structure as in claim 1, said surface layer having a critical surface tension for wetting, said critical surface tension for wetting being less than about 50 dynes/centimeter, which is effective to assist with moving the fecal material into said at least two apertures.

4. The fecal material retaining structure as in claim 1, wherein said at least one first layer of first material includes cellulosic pulp.

5. The fecal material retaining structure as in claim 1, wherein said at least one second layer of second material includes resilient surge material.

6. The fecal material retaining structure as in claim 1, said at least one first layer comprising first multiple layer elements and said at least one second layer comprising second multiple layer elements, said first and second multiple layer elements being interleaved and secured to one another.

7. An absorbent article for being worn on a body of a wearer, said absorbent article having a length, a width, a front portion, a rear portion, a crotch portion connecting said front and rear portions, and a central axis perpendicular to the length of said absorbent article, the central axis extending across said crotch portion and dividing said absorbent article into two sections of approximately equal length, said absorbent article comprising:

(a) a chassis comprising;

(i) an outer cover, and

(ii) a bodyside liner mounted in facing relationship to said outer cover and adapted to contact skin of the body of the wearer of said absorbent article in said front portion of said absorbent article;

(b) an absorbent core located between said bodyside liner and said outer cover in said front portion of said absorbent article; and

(c) a fecal material retaining structure for retaining a solids portion of fecal material and any liquid immobilized therein to prevent the solids portion of the fecal material and any liquid immobilized therein from spreading outwardly along an outside surface of said bodyside liner and thereby covering an increased area of the skin of the body of the wearer of said absorbent article, said fecal material retaining structure being mounted in said rear portion of said absorbent article, said fecal material retaining structure having a depth, and at least two apertures configured to have a minimum depth of at least about 0.38 inch and a maximum depth of larger than 1.0 inch and an ovefall surface area from about 25% to about 75% of a fecal material retaining structure surface area as defined within an outer perimeter of said fecal material retaining structure and extending through at least a partial thickness of said fecal material retaining structure, said at least two apertures defining sufficient volume and structure to receive and retain therein an amount of the solids portion of the fecal material and any liquid immobilized therein representing a typical bowel movement of a typical user.

8. The absorbent article as in claim 7, said fecal material retaining structure comprising at least first and second layers of respective first and second materials.

9. The absorbent article as in claim 8, said fecal material retaining structure extending from about 0.5 inch to about 2 inches frontwardly of the central axis.

10. The absorbent article as in claim 7, said at least two apertures of said fecal material retaining structure having a combined overall volume capacity for receiving and storing fecal material of at least 140 cubic centimeters at rest.

11. The absorbent article as in claim 7, said at least two apertures being configured and arranged such that said retaining structure readily flexes at any one or more of said at least two apertures to conform to the body of the wearer of said absorbent article.

12. The absorbent article as in claim 7, at least one of said at least two apertures having a depth at rest of at least about 0.5 inch.

13. The absorbent article as in claim 7, further comprising a body contactable surface of said absorbent article, wherein in said front portion of said absorbent article, said body contactable surface is dominantly comprised of said bodyside liner, and wherein in said rear portion of said absorbent article, said body contactable surface is not dominantly comprised of said bodyside liner.

14. The absorbent article as in claim 7, further comprising a body contactable surface of said absorbent article, wherein in said rear portion of said absorbent article, said body contactable surface is dominantly comprised of said fecal material retaining structure, and wherein in said front portion of said absorbent article, said body contactable surface is not dominantly comprised of said fecal material retaining structure.

15. The absorbent article as in claim 7, wherein at least one of said at least two apertures of said fecal material retaining structure is larger than at least one of the other said at least two apertures, said larger aperture having a surface area of at least 5 square centimeters.

16. The absorbent article as in claim 15 wherein at least one of said at least two apertures is a smaller aperture having a surface area of less than about 5 square centimeters, said at least one smaller aperture providing enhanced flexibility to said fecal material retaining structure.

17. The absorbent article as in claim 14, a common longitudinal axis extending through the front portion, the rear portion, and the crotch portion along the length of said absorbent article, said at least one smaller aperture being displaced from said longitudinal axis.

18. The absorbent article as in claim 7, wherein edges of said fecal material retaining structure are adapted to be in direct contact with the body of the wearer of said absorbent article at said at least two apertures.