Absorbent article with sensor

• US 10,285,871 B2
• Filed: 04/20/2016
• Issued: 05/14/2019
• Est. Priority Date: 03/03/2016
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Arizti, Blanca, Hasenoehrl, Erik John, Joyce, Jonathan Livingston, Schmidt, Mattias, Sherman, Faiz Feisal, Specht, Steven Jeffrey, Striemer, Grant Edward Anders
• Primary Examiner(s): Kidwell, Michele M
• Application Number:
  US15/134,035
• Publication Number:
  US 20170252225A1
• Time in Patent Office: 1,119 Days
• CPC Class Codes: A61F 13/42 with wetness indicator or alarm
• CPC Class Codes: A61F 13/49 Absorbent articles specially adapted to be worn around the waist, e.g. diapers
• CPC Class Codes: A61F 13/58 Adhesive tab fastener elements A61F13/5611, A61F13/5616, A61F13/66 take precedence
• CPC Class Codes: A61F 13/62 Mechanical fastening means, A61F13/5611, A61F13/5616, A61F13/581, A61F13/66 take precedence; Fabric strip fastener elements, e.g. hook and loop
• CPC Class Codes: A61F 13/64 Straps, belts, ties or endless bands A61F13/5605, A61F13/5622, A61F13/66 take precedence
• CPC Class Codes: A61F 2013/422 the alarm being a colour change
• CPC Class Codes: A61F 2013/423 the alarm being a volume change or a movement of a component
• CPC Class Codes: A61F 2013/424 having an electronic device
• CPC Class Codes: A61F 2013/426 Moisture sensitive polymers
• CPC Class Codes: A61F 2013/427 pH indicator
• CPC Class Codes: A61F 2013/428 for articles with superabsorbent materials
• CPC Class Codes: A61F 2013/429 Thermochromic materials, e.g. ink or dye
• CPC Class Codes: G08B 21/20 responsive to moisture

Abstract

The present disclosure provides an absorbent article for personal hygiene. More particularly, in one embodiment, the absorbent article absorbent article includes at least one property changing indicator. A detector device is also provided that includes at least one sensor. The sensor is adapted to detect the property change of the property change indicator in the absorbent article. In one particular embodiment, for example, the property changing indicator may include an optical property indicator such as a color change indicator and the sensor may include an optical sensor such as a color sensor.

Claims

1. A system for monitoring an absorbent article designed to absorb and contain bodily exudates, the system comprising:

an absorbent article comprising an optical property changing indicator adapted to change at least one optical property in response to the presence or absence of bodily exudates, wherein the absorbent article and the indicator form one integral unit; and

an optical sensor detector device comprising a housing, a battery disposed within the housing, an optical sensor disposed within the housing, a processor and memory storage disposed within the housing to provide data processing on the optical sensor detector device, and a powered light source disposed within the housing and spaced from the optical sensor, the optical sensor adapted to detect the change of the optical property of the indicator,

wherein at least one of the absorbent article and the detector device is adapted to be associated together and disassociated from each other, wherein when the absorbent article and the detector device are associated together the light source emits light in a direction towards the absorbent article and the detector device is adapted to detect the change of optical property of the indicator.

2. The system of claim 1 wherein the optical sensor comprises a color sensor detector device.

3. The system of claim 1 wherein the light source comprises at least one of the group comprising:

an LED and an OLED.

4. The system of claim 3 wherein the optical sensor comprises at least one of the group comprising:

a photodiode, phototransistor, electron tube detector, photosensor, photomultiplier tube, phototube, photodetector, opto-semiconductor detector, photodiode, phototransistor, photomultiplier, image sensor, infrared detector, thermal sensor, illuminance sensor, visible light sensor and color sensor.

5. The system of claim 1 wherein the light source and sensor of the optical sensor detector device are spaced at least about 5 mm apart from each other.

6. The system of claim 1 wherein the optical property changing indicator comprises a chemical substance which induces a color change when at least one bodily exudate is present.

7. The system of claim 1 wherein the absorbent article comprises a connector selected from at least one of the group comprising:

a pocket, a sleeve, a loop, an adhesive, an adhesive tape, a mechanical fastener, a hook fastener, a loop fastener, a snap, a slot, a hole, a button, a belt, a magnet, a magnetic fastener, a paramagnetic fastener, a cohesive fastener and a strap.

8. The system of claim 7 wherein the absorbent article connector is adapted to attach the detector device to the absorbent article juxtaposed the property changing indicator of the absorbent article.

9. The system of claim 1 wherein the detector device comprises at least one of the group comprising:

a loop, an adhesive, an adhesive tape, a mechanical fastener, a hook fastener, a loop fastener, a snap, a slot, a hole, a button, a belt, a magnet, a magnetic fastener, a paramagnetic fastener, a cohesive fastener and a strap.

10. The system of claim 1 wherein the detector device can provide information to a display element.

11. The system of claim 10 wherein the display element is provided in a separate unit.

12. The system of claim 1 wherein the absorbent article comprises a topsheet facing the wearer, a backsheet, generally co-extensive with the topsheet and facing away from the wearer and an absorbent core, encased between the topsheet and the backsheet and wherein the optical property changing indicator is disposed between the backsheet and the core.

13. The system of claim 1 wherein an exudate content quantity of the absorbent article is determined based at least in part upon the optical property change detected via the optical sensor.

14. The system of claim 1 wherein the optical sensor is adapted to detect graduated optical property changes of the absorbent article.

15. The system of claim 1 wherein an exudate content quantity of the absorbent article is determined based at least in part upon detected graduated optical property changes of the absorbent article.

16. The system of claim 1 wherein the detector device comprises a communication module selected from at least one of the group comprising:

a Bluetooth communication module, a BTLE communication module, a mesh communication module, a WiFi communication module, a communication module incorporating one or more protocols defined in IEEE 802, an RFID module, a 3G communication module, a 4G communication module, a Backscatter communication module, a light communication module, a sound communication module, and a harvesting protocol communication module.