JP2001269364A - Excrement sensor for diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an excrement sensor capable of detecting excrement by a V-shaped folded optical fiber which can be easily installed on a conventional throwaway diaper. SOLUTION: Holes are provided in a base plate 1, a light emitting element 2 and a light receiving element 3 are fitted into the holes, and an optical fiber 4 folded in V-shape is installed to be tightly applied to a light receiving surface of the light receiving element 3 and a light emitting surface of the light emitting element 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diaper urine and feces sensor for detecting the intensity of leaking light emitted from a light emitting element into an electric signal by a light receiving element.

[0002]

2. Description of the Related Art In a conventional urination sensor, a pair of electrodes are mounted in a diaper, a voltage is applied thereto, and urination is detected by a change in resistance. Since the electrode itself must be incorporated in the diaper, the disposable diaper becomes disposable up to the electrode part, making the diaper itself expensive in terms of cost. However, it was difficult for a bedridden person to use a bed, and the capacitance change detection method was difficult to attach to a diaper because the sensing portion was large.

[0003]

The urinary stool detector of a conventional diaper is difficult to handle due to the rusting of the electrode part or the large sensing part in the electric change type light change type, or the inside of the diaper. There was a problem that the disposable diaper itself became expensive because it was incorporated into the diaper.

[0004] It is an object of the present invention to provide a method for sensing urine and stool by inserting a sensing portion into a place where urine and stool of a disposable diaper stays.

[0005]

In order to achieve the above object, in a urine and stool sensor of a diaper according to the present invention, an optical fiber bent in a V shape is provided between a light receiving element and a light emitting element. The above V is applied to the light receiving surface and the light emitting surface of the light emitting element.
Optical fibers bent in a letter shape are closely connected.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The V-shaped bent optical fiber of the urine and stool sensor of the diaper constructed as described above is inserted, and the sensor and the diaper are fixed with adhesive tape. Since the diaper itself has no translucency, the light emitted from the light emitting element passes through the optical fiber bent in a V-shape with a certain intensity and reaches the light receiving element, so there is no change in the quantity of electricity. When the diaper wearer urinates and defecates, when urine stool is caught on the tip of the optical fiber bent in the V-shape,
The light emitted from the light emitting element due to the translucency of urine and feces
Since the intensity of light reaching the leak light receiving element from the tip of the optical fiber bent in the shape of a letter becomes weak, the amount of electricity decreases and an electrical change appears, so that urination and defecation is sensed.

[0007]

Embodiments will be described with reference to the drawings.
In FIG. 1, a hole is formed in a substrate 1 and a light receiving element 3 and a light emitting element 2 are fitted into the hole. V-shaped bent optical fiber 4
Is brought into close contact with the light receiving surface of the light receiving element 3 and the light emitting surface of the light emitting element 2 and adhered to the substrate 1 with an adhesive.

[0008]

Since the present invention is configured as described above, it has the following effects.
The V-shaped bent optical fiber can be made small and easy to handle, so that urine and feces can be sensed. Since the urine and feces are only the V-shaped bent optical fiber, it is easy to clean and can be used again. The V-shaped bent optical fiber is inserted into the diaper and fixed to the diaper with the adhesive tape, so that urine and feces do not leak from the insertion hole. Although the sensing portion is V-shaped, the tip is rounded, so there is no problem in touching the body. When the tip of the V-shaped bent optical fiber is in contact with the body due to the translucent skin, it can be notified.

[Brief description of the drawings]

FIG. 1 is a sectional view of a diaper urine and feces sensor.

FIG. 2 is a plan view of a diaper urine and feces sensor.

FIG. 3 is a perspective view of a urine and stool sensor of a diaper.

Claims (1)

[Claims] 1. A light emitting element 2 and a light receiving element 3 are fitted into holes of a substrate 1, one end of an optical fiber 4 bent in a V-shape is brought into close contact with the light emitting surface of the light emitting element 2, and the other end is provided with the light receiving element. Diaper urine and stool detectors in close contact with the light receiving surface of element 3