Absorbent interlabial device

• US 5,968,026 A
• Filed: 11/14/1997
• Issued: 10/19/1999
• Est. Priority Date: 08/30/1996
• Status: Expired due to Term

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Osborn, Thomas Ward III, McFall, Ronald Ray, Brown, Pamela Jean
• Primary Examiner(s): Weiss, John G.
• Assistant Examiner(s): RUHL, DENNIS WILLIAM
• Application Number:
  US08/970,510
• Time in Patent Office: 704 Days
• Field of Search: 604/904, 604/378, 604/385.1, 604/363, 604/330
• US Class Current: 604/378
• CPC Class Codes: A61F 13/15211 soluble or disintegratable in liquid
• CPC Class Codes: A61F 13/15699 Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs
• CPC Class Codes: A61F 13/2085 Catamenial tampons
• CPC Class Codes: A61F 13/47209 having only interlabial part, i.e. with no extralabial parts
• CPC Class Codes: A61F 13/82 with means for attaching to the body
• CPC Class Codes: A61F 2013/53925 with intermittent pattern, e.g. spots
• CPC Class Codes: A61L 15/20 containing organic materials
• CPC Class Codes: A61L 15/26 Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof A61L15/225 takes precedence
• CPC Class Codes: A61L 15/34 Oils, fats, waxes or natural resins A61L15/225 takes precedence
• CPC Class Codes: A61L 15/48 Surfactants
• CPC Class Codes: Y10S 604/904 Tampons

Abstract

An absorbent interlabial device that is worn interlabially by female wearers for catemenial purposes, incontinence protection, or both, is disclosed. The absorbent interlabial device of the present invention is characterized by improved wearing comfort and increased capacity as compared to known interlabial devices. The absorbent interlabial device of the present invention includes at least an central absorbent portion (or core) surrounded by a liquid pervious topsheet. The topsheet is folded laterally inward over the central absorbent portion and downward to form a central groove on the top surface of the interlabial device. The central groove faces toward the vestibule of the wearer upon insertion into the interlabial space. The central groove improves the comfort associated with the wearing of the interlabial device, and allows the device to more rapidly acquire fluids, particularly viscous fluids. Additional features of the device may include a pair of flexible extensions, a secondary topsheet for improve acquisition rate, and tapered sealed ends for improved wearing comfort.

Claims

1. An absorbent device insertable into the interlabial space of a female wearer said absorbent device having a length, a width, and a height, said length, width, and height being oriented in an x-direction, a y-direction, and a z-direction, respectively, said absorbent device comprising:

a central absorbent portion;

a liquid pervious topsheet having two spaced apart transverse edges and two spaced apart longitudinal edges, said liquid pervious topsheet being wrapped around said central absorbent portion;

wherein

said length of said absorbent device is greater than said height of said absorbent device,

said transverse edges of said liquid pervious topsheet are folded laterally inward over said central absorbent portion and downward substantially in said z-direction so as to define a central groove substantially oriented in said z-direction,

said central groove extends in said x-direction along at least a portion of said length of said absorbent device,

said central groove faces toward the vestibule floor of the wearer upon insertion of said absorbent device into the interlabial space of the wearer, and

further comprising a pair of flexible extensions joined to said liquid pervious topsheet and extending outwardly therefrom, said flexible extensions being capable of maintaining contact with the inside surfaces of the wearer'"'"'s labia when said absorbent device is worn.

2. The absorbent device of claim 1 further comprising a liquid impervious backsheet joined to at least a portion of said liquid pervious topsheet.

3. The absorbent device of claim 1 wherein said central absorbent portion comprises a slitted core.

4. The absorbent device of claim 1 further comprising a secondary acquisition layer disposed between said central absorbent portion and said liquid pervious topsheet.

5. The absorbent device of claim 1 wherein said longitudinal edges of said liquid pervious topsheet are sealed in a closed configuration around said central absorbent portion such that said absorbent device has sealed ends.

6. The absorbent device of claim 5 wherein said sealed ends of said absorbent device are oriented in said z-direction.

7. The absorbent device of claim 6 wherein the transverse cross section of said absorbent device is substantially trapezoidal shaped.

8. The absorbent device of claim 1 wherein the time required for said absorbent device to disperse into at least two fragments as measured by the Water Dispersion Test is less than about two hours.

9. The absorbent device of claim 8 wherein said absorbent device is sufficiently flushable that it completely clears the bowl during the Flushability Test at least about 70% of the time in two or fewer flushes.

10. The absorbent device of claim 1 wherein said device is at least about 70% biodegradable as measured by the Sturm test conducted over a 28 day period.

11. The absorbent device of claim 1 wherein said device is at least about 90% biodegradable as measured by the Sturm test conducted over a 28 day period.