A fecal occult blood auxiliary detection device

Abstract

The present invention discloses a fecal occult blood auxiliary detection device, which relates to the field of anorectal detection technology, a light shielding shell, an axially rotating turntable is arranged in the light shielding shell, and a plurality of placement slots for placing light-transmitting sampling bottles are arranged in a ring array on the turntable; a sampling bottle occult blood detection component, the sampling bottle occult blood detection component is arranged at the bottom end of the light shielding shell; the sampling bottle occult blood detection component has a mounting plate, a detection end, a control circuit and a power end. The present invention adopts a non-naked eye feces appearance detection design, so that the negative photosensitive coefficient resistor can only sense red light. When there is more hemoglobin in the feces, when the negative photosensitive coefficient resistor senses light, it can be determined as visible blood and increase the resistance value. When the reflected light reaches a certain amount, the magnetism of the annular electromagnet weakens, and the annular top block will move upward under the action of the spring, thereby lifting the light-transmitting sampling bottle to achieve the purpose of removing the visible blood sample.

Description

Technical Field

[0001] The present invention relates to the technical field of anorectal detection, and in particular to a fecal occult blood auxiliary detection device. Background Art

[0002] Occult blood in stool refers to the presence of red blood cells that cannot be observed with the naked eye or under a microscope. The detection of occult blood in stool is effective in detecting colorectal diseases such as colorectal cancer. In order to detect and treat colorectal cancer and digestive system diseases at an early stage, occult blood detection in stool has been adopted as an examination item in regular health checkups and comprehensive health checkups, and has been implemented in many public institutions and medical institutions.

[0003] At present, in the detection of fecal occult blood, there is a common problem that specimen preparation is difficult to standardize. Medical staff do not give detailed instructions before the test. Patients take specimens at random due to unhygienic conditions and difficulty asking for details. The quality of such specimens is poor, and the staff cannot even directly observe whether there is visible or occult blood. Excessive hemoglobin concentration in the stool can cause false negatives in the immunocolloidal gold labeling method, resulting in missed detection of positive specimens. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problem and to propose a fecal occult blood auxiliary detection device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A fecal occult blood auxiliary detection device, a light shielding shell, an axially rotating turntable is arranged in the light shielding shell, and a plurality of placement slots for placing light-transmitting sampling bottles are arranged in a circular array on the turntable;

[0007] A sampling bottle occult blood detection assembly, the sampling bottle occult blood detection assembly is arranged at the bottom end of the light shielding shell; the sampling bottle occult blood detection assembly is provided with a mounting plate, a detection end, a control circuit and a power end;

[0008] Wherein, a groove is arranged on the mounting plate, and the groove is arranged at any position on the projection of the annular motion track of the placement groove on the mounting plate, and the detection end, the control circuit and the power end are all located in the groove;

[0009] The detection end is used to perform fecal occult blood detection on the bottom of the light-transmitting sampling bottle. When it is determined to be occult blood, the control circuit drives the power end to pop out from the groove to lift up the light-transmitting sampling bottle.

[0010] Optionally, the detection end and the control circuit are composed of a light source, a negative photosensitivity resistor, a filter, a switch and a power supply;

[0011] Among them, the filter is arranged on the photosensitive side of the negative photosensitivity resistor, the light of the light source is received by the filter through reflection of the transparent sampling bottle, the filter filters stray light and transmits specified light, and the negative photosensitivity resistor changes its resistance value according to the luminous flux of the transmitted specified light.

[0012] Optionally, the detection end and the control circuit are composed of a light source, a negative photosensitivity resistor, a filter, a switch and a power supply;

[0013] Among them, the filter is arranged on the photosensitive side of the negative photosensitivity resistor, the light of the light source is received by the filter through reflection of the transparent sampling bottle, the filter filters stray light and transmits specified light, and the negative photosensitivity resistor changes its resistance value according to the luminous flux of the transmitted specified light.

[0014] Optionally, the power end is composed of an annular electromagnet, a spring and an annular top block, wherein the annular top block is made of ferromagnetic material, the annular electromagnet is glued in the groove, the annular top block is movably arranged in the groove, and the two ends of the spring are respectively glued to the annular electromagnet and the annular top block.

[0015] Compared with the existing technology, it has the following advantages:

[0016] The present invention adopts a non-naked eye feces appearance detection design. When there is a lot of hemoglobin in the feces, the color of the feces will be bright red, dark red or tar-like. Since the feces contain water, they have good light reflection performance. When the light source is irradiated on the surface of the feces, all three will absorb other light and fully reflect red light, and absorb other stray light through the filter, so that the negative photosensitive coefficient resistor can only sense red light. When the negative photosensitive coefficient resistor senses light, it can be determined as visible blood and increase the resistance value. When the reflected light reaches a certain amount, the magnetism of the annular electromagnet weakens, and the annular top block will move upward under the action of the spring, thereby lifting up the light-transmitting sampling bottle to achieve the auxiliary purpose of eliminating visible blood samples. Medical personnel can use micro-sampling method to prepare labels and suspensions for the rejected samples, avoiding the problem of false negatives caused by too thick or too concentrated samples or suspensions.

[0017] The present invention adopts a sampling bottle bottom detection design. Since the bottom area of ​​the light-transmitting sampling bottle is not large, detection from the bottom of the light-transmitting sampling bottle will inevitably allow the light to irradiate the surface of the feces, which can ensure that the angles of the incident light and the reflected light are small and controllable, ensuring that the negative photosensitive coefficient resistor can receive the light and avoid missed detection. It effectively solves the problem that if the bottle body is irradiated, the light source cannot locate the feces and the negative photosensitive coefficient resistor cannot be accurately set at the light reflection point. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the combination of the light-shielding shell and the light-transmitting sampling bottle in the present invention;

[0019] Figure 2 It is a cross-sectional view of the light shielding shell in the present invention;

[0020] Figure 3 This is a detection flow chart of the occult blood detection component of the sampling bottle in the present invention.

[0021] In the figure: 1 light shielding shell, 2 mounting plate, 3 motor, 4 turntable, 5 light-transmitting sampling bottle, 6 groove, 7 spring, 8 filter, 9 negative photosensitivity coefficient resistor, 10 light source, 11 annular electromagnet, 12 annular top block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1 An axially rotating turntable 4 is arranged in the light-shielding shell 1, and a plurality of placement slots for placing light-transmitting sampling bottles 5 are arranged in a circular array on the turntable 4. The placement slots are driven to rotate by the rotating shaft of the motor 3. The motor 3 can use a reduction motor to reduce the rotation speed of the turntable 4.

[0024] It is worth mentioning that in this embodiment, the light-transmitting sampling bottle 5 refers to the bottom light-transmitting bottle. Figures 2 to 3 In the embodiment, the bottom of the light-transmitting sampling bottle 5 is provided with a groove, but in fact the groove is not necessary, and the bottom of the light-transmitting sampling bottle 5 can be flat.

[0025] Reference Figure 2 The sampling bottle occult blood detection component is arranged at the bottom end of the light shielding shell 1; the sampling bottle occult blood detection component has a mounting plate 2, a detection end, a control circuit and a power end.

[0026] Reference Figure 2 In the above-mentioned sampling bottle occult blood detection component, a groove 6 is provided on the mounting plate 2, and the groove 6 is set at any position on the projection of the circular motion trajectory of the placement groove on the mounting plate 2. The detection end, the control circuit and the power end are all located in the groove 6. The function of the groove 6 is to store. Under normal circumstances, the power end is stored in the groove 6, so as not to hinder the movement of the turntable 4 driving the transparent sampling bottle 5.

[0027] The detection end, control circuit and power end are described in detail below:

[0028] Reference Figure 2The detection end and the control circuit are composed of a light source 10, a negative light coefficient resistor 9, a filter 8, a switch and a power supply. Among them, the light source 10 can be an LED light source, and the filter 8 is a red filter to filter out light other than red. The filter 8 is arranged on the photosensitive side of the negative light coefficient resistor 9. The light of the light source 10 is received by the filter 8 through the reflection of the light-transmitting sampling bottle 5. The filter 8 filters stray light and transmits the specified light. The negative light coefficient resistor 9 changes its resistance value according to the luminous flux of the specified light.

[0029] Reference Figure 2 The power end is composed of an annular electromagnet 11, a spring 7 and an annular top block, wherein the annular top block is a ferromagnetic material, the annular electromagnet 11 is glued in the groove 6, the annular top block 12 is movably arranged in the groove 6, and the two ends of the spring 7 are glued to the annular electromagnet 11 and the annular top block 12 respectively. By using springs 7 with different elastic forces, the sensitivity of the power end can be adjusted.

[0030] In the present embodiment, an annular electromagnet 11 and an annular top block are used because they are hollow between them, which facilitates the passage of light to detect the light-transmitting sampling bottle 5, so that the detection end and the power end can be simultaneously set at the bottom of the light-transmitting sampling bottle 5 to achieve the purpose of detecting the bottom of the light-transmitting sampling bottle 5. Since the bottom area of ​​the light-transmitting sampling bottle 5 is not large, detection from the bottom of the light-transmitting sampling bottle 5 will inevitably allow light to illuminate the surface of feces, which can ensure that the angles of the incident light and the reflected light are small and controllable, ensuring that the negative photosensitive coefficient resistor 9 can receive light and avoid missed detection. If the bottle body is irradiated, due to the long bottle body, on the one hand, there is a problem that the light source cannot locate the feces, and on the other hand, it will cause a large difference in the angles of the incident light and the reflected light, and it cannot be guaranteed that the negative photosensitive coefficient resistor 9 accurately receives the light.

[0031] Reference Figure 3 The annular electromagnet 11 is connected in series with the negative photosensitivity resistor 9. After the switch is turned on, the negative photosensitivity resistor 9 does not detect the light source, and its resistance value decreases. The magnetism of the annular electromagnet 11 is enhanced, so that the annular top block 12 overcomes the elastic force of the spring 7 and is retracted into the groove 6; the negative photosensitivity resistor 9 detects the light source, and its resistance value increases, the magnetism of the annular electromagnet 11 is weakened, and the annular top block 12 will move upward under the action of the spring.

[0032] The detection end is used to perform fecal occult blood detection on the bottom of the light-transmitting sampling bottle 5. When there is a lot of hemoglobin in the feces, the color of the feces will be bright red, dark red or tar-like. Since the feces contain water, they have good light reflection performance. When the light source is irradiated on the surface of the three, all three will absorb other light and fully reflect red light, and absorb other stray light through the filter 8, so that the negative photosensitivity coefficient resistor 9 can only sense red light. When the negative photosensitivity coefficient resistor 9 senses light, it can be determined as visible blood and change the resistance value. When the reflected light reaches a certain amount, the control circuit drives the power end to pop out from the groove 6 to lift up the light-transmitting sampling bottle to achieve the purpose of removing visible blood samples.

[0033] The above description is only a preferred specific implementation mode of the present invention. It is impossible to list all the implementation modes here, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fecal occult blood auxiliary detection device, characterized in that: include: A light shielding shell (1), wherein an axially rotatable turntable (4) is arranged inside the light shielding shell (1), and a plurality of placement slots for placing light-transmitting sampling bottles (5) are arranged in a circular array on the turntable (4); A sampling bottle occult blood detection component, the sampling bottle occult blood detection component is arranged at the bottom end of the light shielding shell (1); the sampling bottle occult blood detection component comprises a mounting plate (2), a detection end, a control circuit and a power end; The mounting plate (2) is provided with a groove (6), the groove (6) being arranged at any position on the projection of the annular motion track of the placement groove on the mounting plate (2), and the detection end, the control circuit and the power end are all located in the groove (6); The detection end is used to perform a stool occult blood test on the bottom of the light-transmitting sampling bottle (5); when it is determined that blood is present, the control circuit drives the power end to pop out of the groove (6) to lift up the light-transmitting sampling bottle; The detection end and control circuit are composed of a light source (10), a negative photosensitivity resistor (9), a filter (8), a switch and a power supply; The filter (8) is arranged on the photosensitive side of the negative photosensitivity resistor (9), the light from the light source (10) is received by the filter (8) via reflection from the light-transmitting sampling bottle (5), the filter (8) filters stray light and transmits red light, and the negative photosensitivity resistor (9) changes its resistance value according to the luminous flux of the transmitted red light; The power end is composed of an annular electromagnet (11), a spring (7) and an annular top block, wherein the annular top block is made of ferromagnetic material, the annular electromagnet (11) is glued into the groove (6) and connected in series with the negative photosensitivity resistor (9); the annular top block (12) is movably arranged in the groove (6), and the two ends of the spring (7) are glued to the annular electromagnet (11) and the annular top block (12) respectively.

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