ELECTRODE DEVICE FOR BED CONDITION MONITORING Russian patent published in 2015 - IPC A61F13/42 

FIELD: personal use articles.

SUBSTANCE: equipment for alarm warning of the fact of the bed moistening and method to determine whether the bed-sheet is moist. The equipment contains a bed-sheet with two electrodes that are made of an electrically conductive material and positioned at a distance from each other inside or on the bed-sheet, a measurement circuit intended for measurement of active capacity resistance or impedance between the electrodes, an electrical connection spot ensuring the electrodes connection to the measurement circuit, a control unit intended for detection of the fact of the bed moistening relying on the measurements obtained by the measurement circuit. The electrodes are connected to at least one additional electrical connection spot on the electrode. The method involves the following stages: a) checking the electrodes in the bed-sheet for integrity and operability and checking the connections for joining correctness, b) checking insulation between the electrodes, c) the measurement transition into the standby mode for a specified period of time upon expiry whereof the stages a) - c) are continuously repeated either until deactivation by the user or until the bed moistening situation occurs resulting in an alarm signal warning the personnel of the cleaning performance necessity.

EFFECT: ensuring uninterrupted monitoring of the bed condition, possibility of measurement of a single electrode and accordingly - finding an eventually possible malfunction.

9 cl, 4 dwg