Diaper adapted for collection of urine sample from an infant

Patent metadata

Field	Value
Publication number	US-2017252015-A1
Application number	US-201715446077-A
Country	US
Kind code	A1
Filing date	Mar 1, 2017
Priority date	Mar 1, 2016
Publication date	Sep 7, 2017
Grant date	—

Abstract

A disposable diaper product useful for collecting a urine sample from an infant is disclosed. In one example the product may have a liquid control structure overlying a liquid impermeable backsheet, with a plan surface area defining a volume coextensive therewith, wherein a portion of the volume defined by at least 50 percent of the plan surface area contains no more than 50 percent by weight absorbent material. In another example the product may have a liquid control structure overlying a liquid impermeable backsheet, and have an average Liquid Release Ratio of at least 3 percent. A method for collecting a urine sample from an infant is also disclosed, in which a diaper is used for collection.

First claim

What is claimed is:

1 . A disposable diaper product having a length and a front waist region, a rear waist region and a crotch region between the front and rear waist regions, and comprising:
a urine impermeable backsheet, and a liquid control structure overlying the backsheet and having a plan surface area in an x-y plane and a volume coextensive with the plan surface area, and a portion of the volume defined by at least 50 percent of the plan surface area contains no more than 50 percent by weight absorbent material.

2 . The product of claim 1 having an average Liquid Release Ratio of at least 3 percent, measured according to the Liquid Release Ratio Test Method herein.

3 . The product of claim 1 , in which aqueous liquid poured therefrom exhibits an average conductivity no greater than 1 S/m, the aqueous liquid obtained and measured according to the Conductivity Test Method herein.

4 . The product of claim 1 , in which aqueous liquid poured therefrom exhibits an average surface tension equal to or greater than 20 mN/m, the aqueous liquid obtained and measured according to the Surface Tension Test Method herein.

5 . The product of claim 1 having a urine permeable topsheet overlying the liquid control structure.

6 . The product of claim 5 , wherein the topsheet comprises a polymer film having a plurality of apertures therethrough.

7 . The product of claim 1 , further comprising an elasticized waistband member having a lateral width, and being affixed to either one of the front or rear waist regions, wherein the waistband member is not affixed to said one of the front or rear waist regions along the entirety of the lateral width.

8 . The product of claim 1 further comprising an outlet in either or both of the front waist region and the rear waist region.

9 . The product of claim 1 further comprising left and right longitudinal cuffs each having a proximal portion and a free distal edge, and at least one longitudinally-oriented pre-strained elastic member disposed proximate the free distal edge.

10 . A disposable diaper product having a length and a front waist region, a rear waist region and a crotch region between the front and rear waist regions, and comprising:
a urine impermeable backsheet, and a liquid control structure overlying the backsheet,
the product having an average Liquid Release Ratio of at least 3 percent, measured according to the Liquid Release Ratio Test Method herein.

11 . The product of claim 10 wherein the liquid control structure has a plan surface area in an x-y plane and a volume coextensive with the plan surface area, and a portion of the volume defined by at least 50 percent of the plan surface area contains no more than 50 percent by weight absorbent material.

12 . The product of claim 10 , in which aqueous liquid poured therefrom exhibits an average conductivity no greater than 1 S/m, the aqueous liquid obtained and measured according to the Conductivity Test Method herein.

13 . The product of claim 10 , in which aqueous liquid poured therefrom exhibits an average surface tension equal to or greater than 20 mN/m, the aqueous liquid obtained and measured according to the Surface Tension Test Method herein.

14 . The product of claim 10 having a urine permeable topsheet overlying the liquid control structure.

15 . The product of claim 14 , wherein the topsheet comprises a polymer film having a plurality of apertures therethrough.

16 . The product of claim 10 , wherein the liquid control structure comprises hydrophobic fibers.

17 . The product of claim 10 , further comprising an elasticized waistband member having a lateral width, and being affixed to either one of the front or rear waist regions, wherein the waistband member is not affixed to said one of the front or rear waist regions along the entirety of the lateral width.

18 . The product of claim 10 further comprising an outlet in either or both of the front waist region and the rear waist region.

19 . The product of claim 1 further comprising left and right longitudinal cuffs each having a proximal portion and a free distal edge, and at least one longitudinally-oriented pre-strained elastic member disposed proximate the free distal edge.

20 . A method for collecting a urine sample from an infant, comprising the steps of:
applying a diaper to the infant, the diaper having a front waist region and a rear waist region with a rear waist edge; detecting an event of urination by the infant; removing the diaper from the infant; tilting the diaper such that one of the front or rear waist regions is disposed vertically lower than the other; and pouring urine from the lower of the front or rear waist regions, into a sample container.

21 . The method of claim 20 wherein the diaper is the diaper product of any of claims 1 - 19 .

Assignees

• Procter & Gamble

Inventors

• Barnhorst Jacob Alan
• Nishikawa Masaharu
• Hammons John Lee

Classifications

• A61F2013/49041

  having a specific location other than covered by groups A61F13/49011 - A61F13/49019 · CPC title

• A61F2013/530255

  being hydrophobic fibres · CPC title

• A61F13/49011

  the elastic means is located at the waist region · CPC title

• A61F13/51405

  treated or coated, e.g. with moisture repellent agent · CPC title

• A61F2013/51033

  being hydrophilic · CPC title