Absorbent product for receiving body fluids

• US 6,114,597 A
• Filed: 02/24/1998
• Issued: 09/05/2000
• Est. Priority Date: 09/06/1995
• Status: Expired due to Term

• Current Assignee: SCA Hygiene Products AB (Industrivärden AB)
• Original Assignee: SCA Hygiene Products AB (Industrivärden AB)
• Inventors: Romare, Anette
• Primary Examiner(s): RUHL, DENNIS WILLIAM
• Application Number:
  US09/029,364
• Time in Patent Office: 924 Days
• Field of Search: 604/378, 604/385.1, 604/385.2, 604/386, 604/387, 604/389
• US Class Current: 604/378
• CPC Class Codes: A61F 13/47236 characterised by an unusual contour
• CPC Class Codes: A61F 13/47272 with a longitudinal raised end, e.g. cup-shaped gluteal groove for edge leakage prevention A61F13/494
• CPC Class Codes: A61F 13/474 adjustable
• CPC Class Codes: A61F 13/4758 the means preventing fluid flow in a longitudinal direction
• CPC Class Codes: A61F 13/49 Absorbent articles specially adapted to be worn around the waist, e.g. diapers
• CPC Class Codes: A61F 13/505 with separable parts, e.g. combination of disposable and reusable parts, A61F13/20, A61F13/49003 take precedence; supporting or fastening means A61F13/56; belts or the like A61F13/64
• CPC Class Codes: A61F 2013/49063 the diaper having decoupled components

Abstract

The invention relates to an absorbent product such as a sanitary napkin, a panty liner, an incontinence protector, or the like, intended during use to be arranged in the crotch region of a user in order to collect and absorb discharged body fluids, and which has means for fastening inside a pair of underpants. The product has a principally elongated shape with a longitudinal center-line and a transverse center line and comprises an upper part intended during use of the product to be facing towards the user and a lower part intended during use of the product to be facing away from the user. The two parts are mutually joined and each have a front part, intended during use of the product to be facing forwardly towards the abdomen of a user, as well as a rear part intended during use of the product to be facing rearwardly towards the behind of the user. The upper part and the lower part further each have a front transverse edge, a rear transverse edge as well as two longitudinal side edges extending between the two transverse edges. The principal distinguishing characteristic of the invention is that the upper part and the lower part are mutually joined only at the acquisition zone of the product, which is the region of the product which is intended to first be wetted by body fluid, wherein the upper part around the whole of the periphery of the acquisition zone is free from connections to the lower part.

Claims

1. Absorbent product intended during use to be placed in a crotch region of a user in order to collect and absorb discharged body fluids, which product has a principally elongated shape with a longitudinal centre-line and a transverse centre line and comprises an upper part comprising absorbent material and intended during use of the product to be facing towards the user, and a lower part comprising absorbent material and intended during use of the product to be facing away from the user, said lower part having means for fastening inside a pair of underpants, wherein the two parts are mutually connected by a connection which enables the transfer of fluid between the two parts at the connection and the two parts have each a front part intended during use of the product to be facing forwardly and a rear part intended during use to be facing rearwardly the upper part and the lower part being mutually joined only at an acquisition zone of the product, which is the region of the product which is intended to first be wetted by bodily fluid, whereby the upper part outside the acquisition zone is free from connections to the lower part, thereby permitting both the front part and the rear part of the upper part to separate from the lower part.

2. Product according to claim 1, wherein the upper part and the lower part are mutually displaced along the longitudinal centre-line of the product, so that the front part of the upper part extends beyond the front part of the lower part, while the rear part of the lower part extends beyond the rear part of the upper part.

3. Product according to claim 1, wherein the front part of the upper part of the product has a transverse front edge and means for providing elasticity along the transverse front edge.

4. Product according to claim 1, wherein the upper part has longitudinal side edges and means for providing elasticity arranged along the longitudinal side edges of the upper part at the front part of the upper part.

5. Product according to claim 1, wherein the upper part comprises a first side which during use of the product is intended to be facing towards the user, the first side having a liquid permeable covering layer, a second side which during use of the product is intended to be facing towards the lower part, the second side having a liquid barrier covering layer, and an absorbent body contained between the two covering layers, wherein at least one through-opening is arranged in the liquid barrier covering layer at the acquisition zone of the product.

6. Product according to claim 5, wherein the at least one through-opening arranged in the liquid barrier covering layer also extends through the absorbent body in the upper part.

7. Product according to claim 5, wherein the liquid barrier covering layer of the upper part is permeable to body fluids at the rear part of the upper part, but is impermeable to body fluids at the front part of the upper part.

8. Product according to claim 5, wherein a hump of absorbent material is arranged on the lower part and extends up through the through-opening in the liquid barrier covering layer of the upper part.

9. Product according to claim 1, wherein the means for fastening of the product inside a pair of underpants is made up of a coating of pressure sensitive, self-adhesive glue.

10. Product according to claim 9, wherein the lower part has a surface which during use is facing away from the user, and the adhesive coating covers the whole of the surface of the lower part which during use of the product is facing away from the user.

11. Product according to claim 9, wherein the lower part has a surface which during use is facing away from the user, and the adhesive coating is arranged along edges of the surface of the lower part which surface during use of the product is facing away from the user.

12. Product according to claim 1, wherein the upper part has a relatively wide front part and a relatively narrower rear part.

13. Product according to claim 1, wherein the lower part has a relatively narrow front part and a relatively wider rear part.

14. Product according to claim 12, wherein the upper part is spoon-shaped.

15. Product according to claim 1, wherein the rear part of the upper part has a hump shaped so that during use of the product it fits in a furrow between the buttocks of the user behind the genitals.

16. Product according to claim 15, wherein the hump is drop-shaped.

17. Product according to claim 1, wherein the rear part of the upper part has a fold guide, which when the product is subjected to compressive transverse forces during use, causes the rear part of the upper part to adopt, in cross-section, the shape of a V, with the point of the V directed towards the user.

18. Product according to claim 1, wherein the connection between the upper part and the lower part is elastically stretchable.

19. Product according to claim 1, wherein the rear part of the lower part has a transverse raised edge of liquid barrier material.

20. Product according to claim 1, wherein the lower part has side edges, and two principally transverse notches or cuts are arranged on each side edge on the lower part, approximately symmetrically on both sides of the transverse centre line of the product, thus forming parts of the lower part lying between the notches or cuts, said parts being intended to be folded around the edges of the pair of underpants of the user.

21. The product of claim 1 wherein the absorbent product is one of a sanitary napkin, a panty liner, or an incontinence protector.