Remotely detecting the presence of urine or feces in a diaper of an infant or adult using a disposable sensor placed inside the diaper, in conjunction with a permanent device that is capable of wirelessly transmitting data to a mobile device or base station is disclosed. The permanent device can also be capable of measuring temperature and body movements. This additional information can be used in conjunction with the detection of urine or feces to identify patterns.

There is described a sensing device for attaching to an external surface of a nappy. The sensing device comprises an expandable member comprising one or more elastic elements extending between a plurality of attachment points, wherein the attachment points are configured to fixedly attach the expandable member to the external surface of the nappy, and wherein the one or more elastic elements are configured to stretch as the attachment points move apart such that the expandable member is configured to expand in accordance with expansion of the nappy. The sensing device further comprises a detector unit coupled to the expandable member, wherein the detector unit is configured to detect expansion of the expandable member, and is further configured to determine a nappy fullness parameter based on the detected expansion of the expandable member.

A method for indicating and alarming about wet level of a diaper involves using a humidity sensor to perform relative humidity detection on the diaper, when the detected relative humidity is below 50% rh60% rh, showing the diaper's wet level as 0% rh, and when the detected relative humidity is 85% rh95% rh or more, showing the diaper's wet level as 100% rh, wherein functional conversion is performed to convert the relative humidity ranging between 60% rh and 85% rh95% rh proportionally into the diaper's wet level between 0% rh and 100% rh.

A diaper sensor for detecting and differentiating feces and urine in a diaper is described. The diaper sensor may include at least one pair of conductive elements positioned within an absorbent region of the diaper. The diaper sensor may also include a transmitter and a control circuit operatively connected to the at least one pair of conductive elements and the transmitter. The diaper sensor may further include a power source operatively connected to the control circuit. The control circuit may measure the conductivity between the at least one pair of conductive elements. The control circuit may also determine whether there is poop or pee present in the diaper using the conductivity. The control circuit may also transmit via the transmitter a signal indicative of whether there is excrement or pee present in the diaper.

The present application relates to an electronic wetness-sensing absorbent article and related methods. The electronic wetness-sensing absorbent article includes a flexible waterproof thin film; at least two mutually separated and insulated flexible electrodes disposed on one surface of the flexible waterproof thin film; a water-permeable braided fabric layer; and an absorbent layer disposed on the other surface of the flexible waterproof thin film, located between the flexible waterproof thin film and the water-permeable braided fabric layer, and adapted to absorb a liquid entering from the water-permeable braided fabric layer. The flexible waterproof thin film, the flexible electrodes, and the liquid contained in the absorbent layer form a non-polar variable electrolytic capacitor. The wetness state of the electronic wetness-sensing absorbent article is obtained by detecting the capacitance value of the variable electrolytic capacitor and change thereof.

A patient fluid absorption and estimation device includes an absorbent layer comprising an absorbent material and adapted to absorb fluids. The device's sensing layer includes piezoresistive element(s). The sensing layer abuts the absorbent layer such that changes in at the mass or shape of the absorbent layer cause a change in the strain in the piezoresistive element(s). The device includes memory and processing in communication with the memory. The processing includes a piezoresistive element interface. The processing senses a voltage, representing an estimation of the amount of fluid absorbed, across each element via the interface. The processing then converts each voltage to a digital value, and stores the value in the memory. The device includes wireless communications that receives commands from an external computer system to transmit the values, and transmits the values to the external. A power subsystem powers each subsystem.

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.

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.

An excrement sensing device and a diaper with an excrement sensing device are provided. The diaper includes a detachable sensing part, an electronic part and a diaper main body. The detachable sensing part includes a first light guide structure and a second light guide structure. The electronic part includes a signal processor. A light guide gap is formed between two light guide openings of the first light guide structure and the second light guide structure. After the optical signal from the emitter is transmitted through the first light guide structure, the light guide gap and the second light guide structure, the optical signal is received by the receiver. When excrement enters the light guide gap, the optical signal is subjected to a change. In response to the change of the optical signal, the signal processor generates a warning signal.

Remotely detecting the presence of urine or feces in a diaper of an infant or adult using a disposable sensor placed inside the diaper, in conjunction with a permanent device that is capable of wirelessly transmitting data to a mobile device or base station is disclosed. The permanent device can also be capable of measuring temperature and body movements. This additional information can be used in conjunction with the detection of urine or feces to identify patterns.