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Feces color detection device

Inactive Publication Date: 2017-10-26
SETECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention is a feces color detection device that allows for easy monitoring of changes in the color of feces on a daily basis, particularly, occult blood, in a hygienic manner. The device uses cameras placed on the toilet seat to capture images of the feces surface from multiple directions, ensuring early detection of colorectal cancer and decreasing the death rate. The device also uses a linear sensor with three color filters to alleviate the feeling of reluctance of being captured by cameras during defecation.

Problems solved by technology

With a western-style toilet, however, feces easily sink into the water-seal portion of the toilet bowl to be mixed with urine, making it difficult to sample feces in the toilet bowl, and the hand may touch the feces when trying to sample the feces with the fecal sampling pick, which is unpleasant and unsanitary.
Moreover, another problem with this method is that it is only possible to detect an occult blood reaction from positions where the fecal sampling pick scraped, failing to detect occult blood in other portions, resulting in a low 50% detection rate for early-stage colorectal cancer.
However, these methods have problems such as the bad odor when collecting the feces, cleaning of the collecting device, and the complexity in the maintenance of the detection section.
This method merely allows the user to look at the feces in a seated position and is not different from looking directly at the feces with naked eyes, and there is a problem in that the user feels reluctant to observe with naked eyes every time.

Method used

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Examples

Experimental program
Comparison scheme
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embodiment 1

[0042]FIG. 2 and FIG. 3 are views illustrating the first embodiment of the present invention, but the concept also applies to other embodiments.

[0043]In FIG. 2, 1 denotes a toilet bowl, with a toilet seat 2 provided thereon. A plurality of color sensing sections 3a and 3b are provided on the reverse side of the toilet seat. The structure is such that before feces 5 excreted from a body 4 sink into a water-seal portion (not shown) of the toilet bowl 1, the surface of the feces 5 is observed from a plurality of directions by means of the color sensing sections 3a and 3b.

[0044]In the figures, broken line portions of the toilet seat 2 correspond to the end position of the opening of the toilet seat on the inner side thereof.

[0045]The structure of the toilet seat 2 will be described in greater detail with reference to FIG. 3. FIG. 3(a) shows the configuration of the reverse side (the toilet bowl side) of the toilet seat 2. A plurality of color sensing sections 3a, 3b, 3c and 3d are arra...

embodiment 2

[0062]As the second embodiment of the present invention, a structure in which a linear sensor is used as the image-capturing element of the image-capturing camera 7 of the color sensing section will be described with reference to FIG. 9. In FIG. 9, a linear sensor 22 is provided, as the image-capturing element, on a circuit board 21, and with pixels 23 on the linear sensor in a linear arrangement, it is possible to obtain linear images. For the lens of the linear sensor, a cylindrical lens 24 is used as the component, of which the lens size in the vertical direction and that in the horizontal direction are significantly different from each other as shown in FIG. 9.

[0063]FIG. 10 shows a diagram showing the structure of the color sensing section 3a of the toilet seat 2 and the structure of the color sensing section including the image-capturing camera according to the second embodiment of the present invention. FIG. 10 is similar to FIG. 4 and FIG. 7 of Embodiment 1, and the light-out...

embodiment 3

[0069]As the third embodiment of the present invention, where a linear sensor is used as the image-capturing element of the image-capturing camera 7 of the color sensing section, FIGS. 12(a) and 12(b) show output waveforms of a linear sensor at times t1, t2, t3, t4 and t5 of FIG. 10 when the wavelength of the illumination light is varied.

[0070]Herein, sensing in which the wavelength of the illumination light is varied in the infrared light region, which is not a visible range, is also referred to as color sensing.

[0071]FIG. 12(a) shows output waveforms of the linear sensor at times t1, t2, t3, t4 and t5 of FIG. 10, when the wavelength of the illumination light is λ1. The wavelength λ1 of FIG. 12(a) corresponds to a wavelength range where the absorption coefficient of the occult blood portion is large, and corresponds to a visible range of 600 nm or less or a near infrared region wavelength range of 800 nm or more in FIG. 1.

[0072]FIG. 12(b) shows output waveforms of the linear sensor...

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Abstract

A plurality of color sensing sections are attached to a toilet seat so as to test a health state or a fecal occult blood portion every time by capturing the feces surface color during defecation. Before feces which have been excreted from a body sink into a water-seal portion, the circumference of the feces is optically captured to detect the color of the surface of the feces. By monitoring changes in color, the health state of the defecator is monitored. In particular, by checking the presence / absence of an occult blood portion, the present invention assists in early detection of colorectal cancer and allows a fecal occult blood test to be performed in a hygienic manner without burdening the user.

Description

TECHNICAL FIELD[0001]The present invention relates to a device for detecting the color of feces in the everyday life environment, monitoring the daily health state. Particularly, the present invention relates to a device for automatically detecting occult blood on the feces surface.BACKGROUND ART[0002]Detecting occult blood in feces is effective at finding colorectal diseases such as colorectal cancer. Fecal occult blood detection has been employed as a test in a regular medical checkup or a thorough medical examination and conducted in many public institutions and medical institutions for early detection and treatment of colorectal cancer and gastrointestinal diseases. Methods for testing fecal occult blood include chemical methods such as the benzidine method, the orthotolidine method and the guaiac method, the latex agglutination method using latex particles sensitized for an antibody and the chromatography method using a pigment bound on an antibody.[0003]With these fecal occult...

Claims

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Application Information

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IPC IPC(8): A61B10/00G01N21/31G01N21/84G01N33/483
CPCA61B10/0038G01N33/4833G01N21/84G01N21/314G01N2021/3144A47K13/24A61B5/00A61B5/6891A47K13/30
Inventor SEKINE, HIROKAZU
Owner SETECH CO LTD
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