The present disclosure teaches a sanitary napkin having diagnostic arrangement to detect analytes in menstrual blood. The sanitary napkin includes a top layer to collect the menstrual blood and a middle layer having vertical columns for size-based separation of the collected menstrual fluid. Further, the sanitary napkin includes a sensor layer having spots corresponding to the vertical columns to sense concentration of the analytes. Further, the sanitary napkin includes a transmitter to transmit the sensed concentration to a user device for comparing with healthy conditions to detect and analyze the analytes in the menstrual blood. Additionally, the sanitary napkin includes a bottom layer to sandwich the middle layer, the sensor layer, and the transmitter with the top layer.

A computer-implemented method for quantifying blood on one or more absorbent items is provided. The method includes receiving data indicative of a quantity of each type of the absorbent items to be used in a medical procedure, accessing a dry weight for each type of the absorbent items, and determining a total dry weight based on the dry weight for each type of the absorbent items. Measurement signals are received from a scale measuring the absorbent items containing blood. An occurrence of a weighing event may be determined using a machine learning algorithm trained on a training data set of scale signal patterns. A wet weight of the absorbent items associated with the weighing event is received. A volume of blood contained in the absorbent items is determined based on the wet weight and the total dry weight. The volume of blood is displayed on a display.

Systems and methods for detecting determining a volume of urine in an absorbent article such as a diaper. A diaper loading application obtains a first measurement of ambient light received from a photodetector while a light source is off and a second measurement from the photodetector while the light source is transmitting light on an absorbent article. The application determines a normalized measurement of light reflected from an absorbent article by removing an ambient light signal from the second measurement based on the first measurement. The application determines, from the normalized measurement, a presence of urine in the absorbent article. The application further determines an estimated volume of urine in the absorbent article, wherein the determining is based on an elapsed time since the presence of urine and an activity state of an infant wearing the absorbent article.

An absorbent structure comprising one or more absorbent layers wherein the absorbent structure exhibits a first cycle Peak Force compression between about 30 grams and about 150 grams. The absorbent structure further exhibits a fifth cycle dry recovery energy between 0.1 mJ and 2.8 mJ.

A pressure sensing clip (1) and a system including a bandage (19) for detecting and displaying the pressure applied by a (compression) bandage (19) to a human or animal body in which the pressure sensing clip (1) has an inner bandage penetrating arm (2) and an outer arm (3) hingedly attached to the inner arm (2) at a hinge (4) so that the outer arm (3) is movable between a hingedly closed position with respect to the inner arm (2) and a hingedly open position. The device can be operatively attached to an applied compression bandage, or it can be placed beneath or between the bandage during bandage application so that the bandage covers the sensing part of the device. In the latter application, the ability of the arms of the device to adapt an open configuration allows the bandage to be applied over the inner arm leaving the outer arm to close once the bandage has been applied. The device can receive, store and transmit data to a user.