Abstract: To allow a DC voltage to be obtained as an output signal for higher versatility. A sensor unit 400 has three electrodes: a transmission electrode 401, a reception electrode 402 and a shielding electrode 403. The shielding electrode 403 shields the transmission electrode 401 and the reception electrode 402 from each other in terms of high-frequency and is constantly earthed. A high-frequency voltage is applied to the transmission electrode 401 from a high-frequency oscillation circuit 410. A high-frequency voltage depending upon the magnitude of the electrostatic capacity between the electrodes 401 and 4023 is outputted from the reception electrode 402. The high-frequency voltage outputted from the reception electrode 402 is converted into a DC voltage by a detection circuit 420. The presence or absence or the amount of a substance is determined based on the magnitude of the DC voltage produced in the detection circuit 420.

Abstract: A device for disposing excrements of a person lying with the face upward, comprising: a cuplike body having a rim provided with a sealing member engageable with the body of the person to sealingly cover an anus region of the person such that a space for passing excrement of the person is defined between the cuplike body and the person's body, a guide projection extending obliquely downward in the direction opposite to the face of the lying person from the cuplike body at a position facing the anus region of the lying person, the guide projection being terminated in an opening; and a flexible tube connected to the opening of the guide projection for discharging the excrements therethrough.

Abstract: A device for washing a user sitting in or reclining on a wheelchair including an open-bottomed, double-walled housing defining a washing chamber therein and having a top wall opposite the open bottom, opposing side walls, a front wall and a rear opening opposite the front wall. A door is provided for opening and closing the rear opening and a plurality of nozzles are secured to an interior wall of the housing member for injecting warm water toward the user sitting in or reclining on the wheelchair positioned in said washing chamber. The head of the user is located outside the washing chamber.

Abstract: A device for washing a user sitting in or reclining on a wheelchair including an open-bottomed, double-walled housing defining a washing chamber therein and having a top wall opposite the open bottom, opposing side walls, a front wall and a rear opening opposite the front wall. A door is provided for opening and closing the rear opening and a plurality of nozzles are secured to an interior wall of the housing member for injecting warm water toward the user sitting in or reclining on the wheelchair positioned in said washing chamber. The head of the user is located outside the washing chamber.

Abstract: A device for washing a user sitting in or reclining on a stretcher including an open-bottomed, double-walled housing defining a washing chamber therein and having a top wall opposite the open bottom, opposing side walls, a front wall and a rear opening opposite the front wall. A door is provided for opening and closing the rear opening and a plurality of nozzles are secured to an interior wall of the housing member for injecting warm water toward the user sitting in or reclining on the stretcher positioned in said washing chamber. The head of the user is located outside the washing chamber.