CN214252028U - Limit anti-reflux fecal occult blood detection device - Google Patents
Limit anti-reflux fecal occult blood detection device Download PDFInfo
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- CN214252028U CN214252028U CN202022443075.0U CN202022443075U CN214252028U CN 214252028 U CN214252028 U CN 214252028U CN 202022443075 U CN202022443075 U CN 202022443075U CN 214252028 U CN214252028 U CN 214252028U
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Abstract
The utility model provides a limiting anti-reflux fecal occult blood detection device, which solves the problems that the amount of liquid in the fecal occult blood detection device in the prior art is easy to exceed, the liquid level is too high, the reaction area of a test strip is submerged, and the detection result is influenced; even when the fecal occult blood device is inverted, the reaction area of the test strip is polluted by the backflow liquid, so that the problems of inaccurate detection result and the like are solved. The utility model provides a spacing anti-reflux formula just occult blood detection device not only can restrict the detection liquid measure, can also prevent palirrhea liquid pollution test paper strip's reaction zone when just occult blood device inverts, and then makes just occult blood detection work efficiency and the great improvement of rate of accuracy.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a spacing anti-reflux formula just occult blood detection device.
Background
Nowadays, colorectal cancer screening programs are major public health service programs, and since the programs are implemented in the year, more and more residents screen the colorectal cancer. Screening finds that the early proportion of a large number of colorectal cancer and precancerous lesion patients, particularly colorectal cancer cases, is increased, so that the survival rate of the patients is remarkably improved, and screening work is a necessary means for maintaining the health of residents.
Fecal occult blood detection is one of the important technologies of colorectal cancer early diagnosis and crowd screening, and particularly, the fecal occult blood detection device can automatically detect at home without being screened in a hospital. However, the liquid amount in the existing fecal occult blood detection device is easy to exceed, so that the liquid level is too high, and the reaction area of the test strip is submerged, thereby affecting the detection result; even when the fecal occult blood device is inverted, the reaction area of the test strip is polluted by the backflow liquid, so that the detection result is inaccurate.
SUMMERY OF THE UTILITY MODEL
In view of the above disadvantages of the prior art, an object of the present invention is to provide a limiting anti-backflow fecal occult blood detecting device, which is used to solve the problem that the amount of liquid in the fecal occult blood detecting device in the prior art is easily excessive, resulting in too high liquid level, submerging the reaction area of the test strip, and further affecting the detection result; even when the fecal occult blood device is inverted, the reaction area of the test strip is polluted by the backflow liquid, so that the problems of inaccurate detection result and the like are solved.
In order to achieve the above and other related objects, the present invention provides a spacing anti-reflux fecal occult blood detection device, including: the detection cavity, the first limiting part and the second limiting part; the detection cavity is of a structure with an opening at the top end and a closed bottom end, a test paper detection cavity for longitudinally placing test paper is arranged on the side edge of the detection cavity, and the test paper detects liquid to be detected in the detection cavity through a detection port arranged at the bottom end of the test paper detection cavity; the first limiting part and the second limiting part which are arranged in the detection cavity are respectively of an inclined structure which inclines to the direction of the detection port by the same angle, the lowest end of the first limiting part close to the test paper detection cavity is higher than the lowest end of the second limiting part close to the test paper detection cavity, the highest end of the first limiting part close to the opening of the detection cavity is lower than the standard line of the test paper detection cavity, and the lowest end of the first limiting part is higher than the lowest end of the detection port; the surface of the first limiting part, which is close to the opening of the detection cavity, forms a liquid receiving cavity with the detection cavity, a liquid storage cavity is formed between the second limiting part and the first limiting part, and a residual liquid cavity is formed between the bottom end of the detection cavity and the second limiting part; the liquid receiving cavity is communicated with the liquid storage cavity through a flow guide port between the lowest end of the first limiting part and the detection port, and the liquid receiving cavity is communicated with the liquid receiving cavity through a liquid discharge port between the highest end of the second limiting part close to the opening of the detection cavity and the inner wall of the detection cavity; the highest end of the first limiting part is provided with a ventilation hole which is used for keeping the liquid level of the liquid receiving cavity and the liquid level in the liquid storage cavity the same and preventing liquid in the residual liquid cavity from flowing backwards.
In an embodiment of the present invention, the detection cavity is a cylindrical structure.
In an embodiment of the present invention, the first position-limiting portion and the second position-limiting portion are inclined curved surface structures.
In an embodiment of the present invention, the first position-limiting portion includes: the liquid receiving surface is used for contacting the liquid receiving surface which flows into the liquid receiving cavity from the top opening of the detection cavity and the liquid backflow surface is used for storing liquid backflow which flows back into the liquid storage cavity from the residual liquid cavity.
In an embodiment of the present invention, the second limiting portion includes: the liquid storage surface is used for storing liquid flowing into the liquid storage cavity from the liquid receiving cavity and the backflow liquid receiving surface is used for contacting the backflow liquid receiving surface from the residual liquid cavity.
In an embodiment of the present invention, the lowest end of the second limiting portion is lower than the lowest end of the detection port, and is connected to the inside of the detection cavity.
In an embodiment of the present invention, the test paper detection cavity is made of transparent material.
In an embodiment of the present invention, the cavity wall of the test paper detection cavity is provided with one or more scale marks.
In an embodiment of the present invention, the height of the standard line is higher than the height of the reaction line of the test strip disposed in the test strip detection cavity.
In an embodiment of the present invention, the number of the ventilation holes is plural.
As mentioned above, the utility model discloses a spacing anti-refluence formula just occult blood detection device has following beneficial effect: the utility model provides a spacing anti-reflux formula just occult blood detection device not only can restrict the detection liquid measure, can also prevent palirrhea liquid pollution test paper strip's reaction zone when just occult blood device inverts, and then makes just occult blood detection work efficiency and the great improvement of rate of accuracy.
Drawings
Fig. 1 is a schematic view showing a sectional structure of a limiting anti-reflux fecal occult blood detecting device according to an embodiment of the present invention.
Fig. 2 is a schematic view showing a forward-placed tangent plane structure of the limiting reverse-flow-preventing fecal occult blood detection device in an embodiment of the present invention.
Fig. 3 is a schematic view showing a inverted section structure of the limiting anti-reflux fecal occult blood detecting device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It is noted that in the following description, reference is made to the accompanying drawings which illustrate several embodiments of the invention. It is to be understood that other embodiments may be utilized and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present invention. The following detailed description is not to be taken in a limiting sense, and the scope of embodiments of the present invention is defined only by the claims of the issued patent. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Spatially relative terms, such as "upper," "lower," "left," "right," "lower," "below," "lower," "over," "upper," and the like, may be used herein to facilitate describing one element or feature's relationship to another element or feature as illustrated in the figures.
The terms first, second, third, etc. are used herein to describe various elements, components, regions, layers and/or sections, but are not limited thereto. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the scope of the present invention.
Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," and/or "comprising," when used in this specification, specify the presence of stated features, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, operations, elements, components, items, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions or operations are inherently mutually exclusive in some way.
The utility model provides a limiting anti-reflux fecal occult blood detection device, which solves the problems that the amount of liquid in the fecal occult blood detection device in the prior art is easy to exceed, the liquid level is too high, the reaction area of a test strip is submerged, and the detection result is influenced; even when the fecal occult blood device is inverted, the reaction area of the test strip is polluted by the backflow liquid, so that the problems of inaccurate detection result and the like are solved. The utility model provides a spacing anti-reflux formula just occult blood detection device not only can restrict the detection liquid measure, can also prevent palirrhea liquid pollution test paper strip's reaction zone when just occult blood device inverts, and then makes just occult blood detection work efficiency and the great improvement of rate of accuracy.
The following description of the embodiments of the present invention will be made in detail with reference to fig. 1 so that those skilled in the art can easily implement the embodiments of the present invention. The present invention may be embodied in a variety of different forms and is not limited to the embodiments described herein.
Fig. 1 shows a schematic view of a sectional structure of a limiting anti-reflux fecal occult blood detection device in an embodiment.
The method comprises the following steps: a detection cavity 11, a first limit part 12 and a second limit part 13;
the detection cavity 11 is of a structure with an opening at the top end and a closed bottom end, a test paper detection cavity 14 for longitudinally placing test paper 15 is formed in the side edge of the detection cavity, and the test paper 15 detects liquid to be detected in the detection cavity 11, which is in contact with the test paper 15 in a detection port, through a detection port 16 formed in the bottom end of the test paper detection cavity; the reaction area of the test paper 15 contacts and reacts with the liquid to be detected through the detection port 16. It should be noted that the height of the test strip detection cavity 16 and the size and shape of the detection port 15 are determined according to specific requirements, and are not limited in this application. For example, if the reaction area of the test strip is large, the detection port is correspondingly large, so that the liquid to be detected can be better detected.
The first limiting part 12 and the second limiting part 13 arranged in the detection cavity 11 are respectively of an inclined structure with one end inclined towards the direction of the detection port 16, and the inclined angles of the two parts are the same. And the lowest end of the first limit part 12 close to the test paper detection cavity 14 is higher than the lowest end of the second limit part 13 close to the test paper detection cavity 14, and the highest end of the first limit part 12 close to the detection cavity opening is also higher than the highest end of the second limit part 13 close to the detection cavity opening. The highest end of the first limiting part 11 is lower than a standard line of the test paper detection cavity 12 so as to ensure that the liquid level of the liquid to be detected cannot exceed the standard line; the lowest end of the first limiting part 12 is higher than the lowest end of the detection port so as to ensure that the liquid to be detected flowing through the first limiting part 12 can fully contact the detection test paper 15;
the surface of the first limiting part 11, which is close to the opening of the detection cavity, and the inner wall of the detection cavity 11 connected with the first limiting part form a liquid receiving cavity 1 so as to drain or store liquid to be detected flowing from the opening of the detection cavity; a liquid storage cavity 2 is formed between the second limiting part 12 and the first limiting part 11 to store the liquid to be detected flowing from the liquid receiving cavity 1 and the liquid reversely flowing from the residual liquid cavity 3; the bottom end of the detection cavity and the second limiting part 12 form a residual liquid cavity 3 for accommodating residual liquid flowing from the liquid storage cavity 2; the least significant end of first spacing portion with the detection mouth has the water conservancy diversion mouth of certain width, is used for flowing into receive the liquid chamber 1 the liquid that awaits measuring to stock solution chamber 2 carries out the drainage, and right the liquid that awaits measuring of detection mouth 16 department detects, can realize the first layer restriction of the liquid measure to the liquid that awaits measuring through first restriction portion 11. The liquid receiving cavity 1 is communicated with the liquid storage cavity 2 through a flow guide port between the lowest end of the first limiting part 11 and the detection port 16; the highest end of the second limiting part 12 and the inner wall of the cavity are provided with a liquid outlet with a certain width, and the liquid outlet is used for discharging the residual liquid overflowing the liquid storage cavity 2 into the residual liquid cavity 3 so as to achieve the effect of performing second-layer limitation on the liquid amount of the liquid to be detected; the liquid receiving cavity 1 is communicated with the liquid receiving cavity 3 through a liquid outlet which is arranged between the highest end of the second limiting part 12 close to the opening of the detection cavity and the inner wall of the detection cavity; preferably, the second limiting portion 13 is not connected to the inner wall of one end of the detection cavity, so as to form an opening as a liquid discharge port;
the highest end of the first limiting part 11 is provided with an air vent 17 which is used for keeping the liquid level of the liquid receiving cavity and the liquid level in the liquid storage cavity the same and preventing liquid in the residual liquid cavity from flowing backwards. Specifically, when the liquid to be detected normally flows into the liquid receiving cavity 1 from the opening of the detection cavity, according to the principle of a communicating vessel, the opening of the air vent 17 enables the air pressure in the communicated liquid receiving cavity 1 and the air pressure in the liquid storage cavity 2 to be the same, so that the liquid level height of the liquid to be detected in the liquid storage cavity 2 is the same as that of the liquid to be detected in the liquid receiving cavity 1, and the liquid level height is limited by the liquid level height in the liquid storage cavity and always kept below a standard line without increasing the injected liquid; when the liquid that awaits measuring is because inversion of device is followed surplus liquid chamber 3 is through the flowing back extremely during stock solution chamber 2, gas vent 17 and water conservancy diversion mouth are because palirrhea liquid blocking, and then liquid can not flow back extremely through the water conservancy diversion mouth receive the liquid chamber, and then form a closed chamber, and liquid receives the balanced restriction of atmospheric pressure, can't discharge, and then can not influence the testing result.
Optionally, the detection cavity 11 is a cylindrical structure. The columnar structures include, but are not limited to: cylinders, square cylinders, etc.
Optionally, the first limiting part 12 and the second limiting part 13 are inclined curved surface structures, and the liquid receiving cavity 1, the liquid storage cavity 2 and the residual liquid cavity 3 are formed inside the detection cavity. It should be noted that the curvature of the inclined curved surface is set according to specific requirements to ensure that the liquid can be normally drained to the liquid storage cavity 2 or the residual liquid cavity 3.
Optionally, the first limiting part 11 includes: the liquid receiving surface is used for contacting the liquid receiving surface which flows into the liquid receiving cavity 1 from the top opening of the detection cavity and the liquid reflux surface which is used for storing liquid reflux flowing back into the liquid storage cavity 2 from the residual liquid cavity 3.
Specifically, when the liquid to be detected flows into the liquid receiving cavity 1 formed by the liquid receiving surface and the inner wall of the detection cavity from the opening at the top end of the detection cavity, the liquid amount control function of the first layer of the liquid to be detected is realized; when the liquid to be measured reversely flows into the liquid storage cavity 2 formed by the reverse flow liquid storage surface of the second limiting part 12 from the residual liquid cavity 3, the reverse flow effect of the liquid to be measured on the second layer is achieved.
Optionally, the second limiting portion 12 includes: a liquid storage surface for storing liquid flowing from the liquid receiving cavity 1 to the liquid storage cavity 2 and a reverse flow liquid receiving surface for contacting liquid reverse flowing from the residual liquid cavity 3.
Specifically, when the liquid to be measured flows into the liquid storage cavity 2 formed by the liquid storage surface and the first limiting part from the liquid receiving cavity 1, the liquid volume control function of the second layer of liquid to be measured is achieved; when the liquid that awaits measuring follow by the palirrhea receive the liquid surface with the inside surplus liquid chamber 3 that constitutes of detection cavity flows back the income in the stock solution chamber 2, play the first layer and prevent the palirrhea effect of liquid that awaits measuring.
Optionally, the lowest end of the second limiting portion 12 is lower than the lowest end of the detection port 16, and is connected to the inside of the detection cavity 11 in a sealing manner, so that the liquid to be detected can only flow into the residual liquid cavity 3 from the liquid discharge port, and the liquid storage function is realized.
Optionally, the test paper detection cavity 14 is made of a transparent material, and a reaction line of the test paper can be observed through the transparent test paper detection cavity, so as to obtain a detection result.
Optionally, one or more scale marks are disposed on the wall of the test paper detection cavity 14 to control the amount of liquid in the test paper detection cavity.
Optionally, the test paper 15 and the test paper detection cavity 14 are fixed by gluing.
Optionally, the height of the standard line is higher than the height of a reaction line of the test paper placed in the test paper detection cavity, so that the detection result can be observed conveniently.
Optionally, the number of the vent holes 17 is multiple, and the number of the vent holes 17 is set according to specific requirements.
In order to better explain the limiting anti-reflux fecal occult blood detection device, the following specific examples are provided.
Example 1: a limit anti-reflux fecal occult blood detection device.
The method comprises the following steps: the detection cavity, the first limiting part and the second limiting part; the detection cavity is of a cylindrical structure with an opening at the top end and a closed bottom end, a test paper detection cavity for longitudinally placing and sticking test paper is arranged on the side edge of the detection cavity, and the test paper detects liquid to be detected in the detection cavity through a detection port arranged at the bottom end of the test paper detection cavity; the first limiting part and the second limiting part which are arranged in the detection cavity are respectively of an inclined structure which inclines 60 degrees towards the direction of the detection port, the lowest end of the first limiting part, which is close to the test paper detection cavity, is higher than the lowest end of the second limiting part, which is close to the test paper detection cavity by 3cm, the highest end of the first limiting part, which is close to the opening of the detection cavity, is lower than the standard line of the test paper detection cavity by 1cm, and the lowest end of the first limiting part is higher than the lowest end of the detection port; a liquid receiving cavity with the longitudinal width of 3cm is formed by the surface of the first limiting part close to the opening of the detection cavity and the detection cavity, a liquid storage cavity is formed between the second limiting part and the first limiting part, and a residual liquid cavity is formed by the bottom end of the detection cavity and the second limiting part; the liquid receiving cavity is communicated with the liquid storage cavity through a flow guide port between the lowest end of the first limiting part and the detection port, and the liquid receiving cavity is communicated with the liquid receiving cavity through a liquid discharge port between the highest end of the second limiting part close to the opening of the detection cavity and the inner wall of the detection cavity; the highest end of the first limiting part is provided with a ventilation hole which is used for keeping the liquid level of the liquid receiving cavity and the liquid level in the liquid storage cavity the same and preventing liquid in the residual liquid cavity from flowing backwards.
The implementation manner of the limiting anti-backflow fecal occult blood detection device in the embodiment is explained according to the placement state of the limiting anti-backflow fecal occult blood detection device:
(1) when the device is in a forward-facing position;
as shown in fig. 2, the liquid to be detected flows into the liquid receiving cavity through the opening of the detection cavity, the air hole is in an open state, the liquid to be detected is introduced into the liquid storage cavity from the liquid receiving cavity through the introduction of the flow guide port, the liquid is detected at the detection port, and the liquid level of the liquid receiving cavity is the same as the liquid level of the liquid storage cavity. When the liquid to be measured overflows the liquid storage cavity through the liquid outlet, the overflowing residual liquid enters the residual liquid cavity, so that the liquid level heights of the liquid receiving cavity and the liquid storage cavity are limited by the liquid storage surface height and are always kept below a standard line, the liquid is not increased due to the increase of injected liquid, and the redundant liquid flows into the residual liquid cavity below.
(2) When the device is in an inverted state;
as shown in fig. 3, the excessive liquid to be detected in the residual liquid cavity reversely flows into the liquid storage cavity through the liquid discharge port, the air hole and the flow guide port are in a closed state due to liquid blockage, and then the liquid flowing into the liquid storage cavity cannot flow into the liquid receiving cavity through the flow guide port, and cannot be discharged due to the restriction of atmospheric pressure balance, so that the detection result is ensured not to be polluted.
In summary, the limiting anti-backflow fecal occult blood detection device of the utility model solves the problems that the amount of liquid in the fecal occult blood detection device in the prior art is easy to exceed, so that the liquid level is too high, and the reaction area of a test strip is submerged, thereby affecting the detection result; even when the fecal occult blood device is inverted, the reaction area of the test strip is polluted by the backflow liquid, so that the problems of inaccurate detection result and the like are solved. The utility model provides a spacing anti-reflux formula just occult blood detection device not only can restrict the detection liquid measure, can also prevent palirrhea liquid pollution test paper strip's reaction zone when just occult blood device inverts, and then makes just occult blood detection work efficiency and the great improvement of rate of accuracy. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A limit anti-backflow excrement occult blood detection device is characterized by comprising: the detection cavity, the first limiting part and the second limiting part;
the detection cavity is of a structure with an opening at the top end and a closed bottom end, a test paper detection cavity for longitudinally placing test paper is arranged on the side edge of the detection cavity, and the test paper detects liquid to be detected in the detection cavity through a detection port arranged at the bottom end of the test paper detection cavity; the first limiting part and the second limiting part which are arranged in the detection cavity are respectively of an inclined structure which inclines to the direction of the detection port by the same angle, the lowest end of the first limiting part close to the test paper detection cavity is higher than the lowest end of the second limiting part close to the test paper detection cavity, the highest end of the first limiting part close to the opening of the detection cavity is lower than the standard line of the test paper detection cavity, and the lowest end of the first limiting part is higher than the lowest end of the detection port; the surface of the first limiting part, which is close to the opening of the detection cavity, forms a liquid receiving cavity with the detection cavity, a liquid storage cavity is formed between the second limiting part and the first limiting part, and a residual liquid cavity is formed between the bottom end of the detection cavity and the second limiting part; the liquid receiving cavity is communicated with the liquid storage cavity through a flow guide port between the lowest end of the first limiting part and the detection port, and the liquid receiving cavity is communicated with the liquid receiving cavity through a liquid discharge port between the highest end of the second limiting part close to the opening of the detection cavity and the inner wall of the detection cavity; the highest end of the first limiting part is provided with a ventilation hole which is used for keeping the liquid level of the liquid receiving cavity and the liquid level in the liquid storage cavity the same and preventing liquid in the residual liquid cavity from flowing backwards.
2. The device for detecting the fecal occult blood with the limit anti-reflux function according to claim 1, wherein the detection cavity is a cylindrical structure.
3. A limiting anti-reflux fecal occult blood detection device according to claim 1, wherein the first limiting part and the second limiting part are inclined curved surface structures.
4. A limiting anti-reflux fecal occult blood detection device according to claim 1, wherein the first limiting part comprises: the liquid receiving surface is used for contacting the liquid receiving surface which flows into the liquid receiving cavity from the top opening of the detection cavity and the liquid backflow surface is used for storing liquid backflow which flows back into the liquid storage cavity from the residual liquid cavity.
5. A limiting anti-reflux fecal occult blood detection device according to claim 1 or 4, wherein the second limiting part comprises: the liquid storage surface is used for storing liquid flowing into the liquid storage cavity from the liquid receiving cavity and the backflow liquid receiving surface is used for contacting the backflow liquid receiving surface from the residual liquid cavity.
6. The device for detecting the occult blood in stool with the function of limiting and preventing backflow according to claim 1, wherein the lowest end of the second limiting part is lower than the lowest end of the detection port and is connected with the inside of the detection cavity.
7. The device for detecting the presence of blood in feces according to claim 1, characterized in that the test paper detection cavity is made of transparent material.
8. A limiting anti-reflux fecal occult blood detection device according to claim 7, wherein the cavity wall of the test paper detection cavity is provided with one or more scale lines.
9. A limiting anti-reflux fecal occult blood detection device according to claim 1, wherein the standard line height is higher than the reaction line height of the test paper placed in the test paper detection chamber.
10. A limiting anti-reflux fecal occult blood detection device according to claim 1, wherein the number of the vent holes is plural.
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| CN202022443075.0U CN214252028U (en) | 2020-10-28 | 2020-10-28 | Limit anti-reflux fecal occult blood detection device |
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| CN202022443075.0U CN214252028U (en) | 2020-10-28 | 2020-10-28 | Limit anti-reflux fecal occult blood detection device |
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