# US 10,307,303 B2 · Wearable absorbent article > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,307,303 B2 - Document ID: US10307303B2 - Status: Granted - Kind: B2 - Application number: 16/064,615 - Filed: 2015-12-22 - Published: 2018-12-27 - Granted: 2019-06-04 - Earliest claimed: 2015-12-22 - Assignees: SCA Hygiene Products AB - Applicants: SCA Hygiene Products AB - Inventors: Joshua Daniel Carney; Yossef Schvetz; Serdar Ozsumer; Manuel Tramontana; Alessandro Locati - Web page: https://patentgrep.com/patent/US10307303B2 ## CPC - A61F 13/42: with wetness indicator or alarm - A61F 5/48: Devices for preventing wetting or pollution of the bed - A61F 2013/424: {having an electronic device} - A61F 2013/8476: {with various devices or method} - A61F 2013/8479: {including electric or magnetic devices} - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract A wearable absorbent article includes a conductor arrangement. Including a plurality of elongate conductors, each conductor extending along an extension direction. At least some of the conductors have different lengths from each other in the respective extension directions. Those of the at least some of the conductors which have larger lengths in the respective extension directions have lower electrical resistances per unit length than those of the at least some of the conductors which have smaller lengths in the respective extension directions. ## Claims ### Claim 1 A wearable absorbent article comprising: a conductor arrangement comprising a plurality of elongate conductors, each conductor extending along an extension direction, wherein at least some of the conductors (4) have different lengths from each other in the respective extension directions, and wherein those of the at least some of the conductors which have larger lengths in the respective extension directions have lower electrical resistances per unit length than those of the at least some of the conductors (4) which have smaller lengths in the respective extension directions; an absorbent core; and a wetness detection unit for detecting wetness at one or more locations within the absorbent core, wherein the conductors are arranged so as to be electrically insulated from the absorbent core, wherein each of the conductors is electrically connected to a respective electrode, the electrodes are arranged in contact with the absorbent core, and the wetness detection unit is configured to detect the wetness at the one or more locations within the absorbent core by measuring the electrical resistance between two of the electrodes through the conductors. ### Claim 2 (depends on 1) The wearable absorbent article according to claim 1, wherein the wetness detection unit is removably attached to the remainder of the absorbent article. ### Claim 3 (depends on 1) The wearable absorbent article according to claim 1, wherein the wetness detection unit is embedded within the remainder of the absorbent article. ### Claim 4 (depends on 1) The wearable absorbent article according to claim 1, wherein all of the conductors have substantially the same electrical resistance. ### Claim 5 (depends on 1) The wearable absorbent article according to claim 1, wherein those of the at least some of the conductors which have larger lengths in the respective extension directions have cross-sectional areas perpendicular to the respective extension directions which are larger than the cross-sectional areas perpendicular to the respective extension directions of those of the at least some of the conductors which have smaller lengths in the respective extension directions. ### Claim 6 (depends on 5) The wearable absorbent article according to claim 5, wherein the cross-sectional areas of the conductors perpendicular to the respective extension directions are substantially proportional to the lengths of the conductors in the respective extension directions. ### Claim 7 (depends on 1) The wearable absorbent article according to claim 1, wherein those of the at least some of the conductors which have larger lengths in the respective extension directions resistivities than those of the have lower electrical at least some of the conductors which have smaller lengths in the respective extension directions. ### Claim 8 (depends on 7) The wearable absorbent article according to claim 7, wherein the electrical resistivities of the conductors are inversely proportional to the lengths of the conductors in the respective extension directions. ### Claim 9 (depends on 1) The wearable absorbent article according to claim 1, wherein all of the conductors extend along the same extension direction. ### Claim 10 (depends on 1) The wearable absorbent article according to claim 1, wherein the conductor arrangement further comprises a flexible circuit board. ### Claim 11 (depends on 10) The wearable absorbent article according to claim 10, wherein the conductors are strip conductors formed on the flexible circuit board. ### Claim 12 (depends on 1) The wearable absorbent article according to claim 1, wherein the conductors have at least one of lengths in the respective extension directions in the range of 1 cm to 60 cm or cross-sectional areas perpendicular to the respective extension directions in the range of 0.01 mm2 to 1.00 mm2. ### Claim 13 (depends on 1) The wearable absorbent article according to claim 1, wherein the absorbent article is a diaper, a sanitary towel, an incontinence garment or a medical dressing.