Floating gathering auxiliary device for parasite egg examination

Abstract

The utility model discloses a floating gathering auxiliary device for parasite ovum examination, which is characterized in that a floating gathering bottle containing fecal mass is placed in a floating gathering bottle mounting groove, the liquid level in the bottle is monitored in real time through a water level sensor, meanwhile, a liquid adding assembly adds saturated salt water into the bottle, and after the liquid level is higher than the liquid level and does not overflow, the salt water is added into the bottle; the slide lifting unit and the slide reversing mechanism enable the slide loading unit to descend and reverse until the slide is attached to the bottle opening, and after a fixed duration, the slide lifting unit and the slide reversing mechanism are started reversely, and the slide is output from the slide taking and placing opening. The operation of adding liquid and loading the glass slide is automatically and integrally integrated, so that the operation steps of a traditional artificial brine flotation polymerization method are simplified, the working efficiency is improved, and the problems that the liquid adding amount is difficult to accurately control and the liquid is easy to overflow in the manual operation process due to manual liquid adding are solved through mechanical standardized operation. And the liquid flows out due to the shaking state of the human hand.

Description

Technical Field

[0001] The embodiments of this utility model belong to the field of parasite egg inspection technology, and more specifically, relate to a flotation auxiliary device for parasite egg inspection. Background Technology

[0002] Hookworm, ascariasis, and tapeworm infections are significant public health problems that seriously threaten human health. The adult worms parasitize the small intestine, and their eggs are excreted in feces. To extract eggs from feces, flotation is a commonly used method, utilizing a denser liquid to cause the protozoan cysts or eggs to float and concentrate on the surface. To improve the efficiency of flotation, proposing an auxiliary operating device based on the principle of flotation is of great significance.

[0003] The conventional saline flotation method involves placing a pea-sized sample of feces into a flotation bottle using a bamboo skewer, adding a small amount of saturated saline solution and mixing well. Then, saturated saline solution is slowly added until the liquid level is slightly above the bottle opening, ensuring it doesn't overflow. A glass slide is then placed over the bottle opening and allowed to stand for 15 minutes. The slide is then lifted, quickly flipped, and examined under a microscope. Furthermore, Chinese utility model patent CN217561307U discloses a device for laboratory examination of hookworm eggs using the saturated saline flotation method. This device includes a rack with flotation bottle slots evenly spaced on its surface. Each flotation bottle contains a flotation bottle, with the height of the bottle exceeding the depth of the slot. A timer is positioned next to each bottle, and an electronic scale is attached to the bottom of each bottle. The rack also includes an area for placing experimental equipment. An outer ring is provided on the surface of each flotation bottle, and this ring does not extend above the bottle opening. This method utilizes a uniquely designed floating culture bottle, facilitating operation and preventing the accumulation of fecal matter on the slide edges, thus avoiding microscope contamination. It also effectively prevents overfilling and spillage of saturated saline solution, thus avoiding issues like insufficient or excessive settling time that could affect detection rates.

[0004] The above-mentioned technical methods have all achieved the aggregation and extraction of parasite eggs in feces to a certain extent, but the following technical problems or areas for improvement still exist:

[0005] (1) The standard brine flotation method requires strict adherence to six steps, all of which are manual operations, making the process cumbersome and resulting in low work efficiency. (2) The patented technical solution CN217561307U also requires the standardized six-step operation described in (1), and auxiliary devices should be used to simplify the operation. (3) For the standard, the liquid level is higher than the bottle opening and does not overflow. Then, the glass slide is attached to the liquid surface. In this process, it is difficult to accurately control the amount of liquid added manually, which can easily lead to overflow. In addition, when loading the glass slide, the shaking of the hand can also cause the liquid to flow out. Therefore, this process should be optimized by using automated devices. Utility Model Content

[0006] In view of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a flotation auxiliary device for parasite egg inspection. By automating the operation of adding liquid and loading glass slides, it not only simplifies the operation steps of the traditional manual saline flotation method and improves work efficiency, but also prevents the technical problems of difficulty in accurately controlling the amount of liquid added during manual operation, easy overflow, and liquid leakage caused by hand tremors during manual operation through mechanical standardized operation.

[0007] To achieve the above objective, a flotation auxiliary device for parasite egg detection includes:

[0008] The main housing, the working cavity located in the middle of the main housing, the glass slide loading and unloading port located above the working cavity, and the flotation bottle mounting groove located on the bottom surface of the working cavity;

[0009] A liquid addition measurement and control unit fixed in the working chamber for quantitatively adding liquid to the floating polymer bottle installation tank includes a water level sensor for measuring the liquid level in the floating polymer bottle and a liquid addition assembly located above the bottle opening of the floating polymer bottle.

[0010] A slide loading unit for mounting slides, a slide lifting unit for controlling the overall lifting and lowering of the slide loading unit, and a slide reversing mechanism for controlling the reversal of the slide lifting unit;

[0011] The flotation bottle containing fecal blocks is placed in the flotation bottle installation slot. While the liquid level in the bottle is monitored in real time by the water level sensor, the liquid addition component adds saturated saline solution into the bottle. After the liquid level reaches a state above the liquid surface without overflowing, the slide lifting unit and the slide reversing mechanism lower and reverse the slide loading unit respectively until the slide is attached to the bottle mouth. After waiting for a fixed time, the slide lifting unit and the slide reversing mechanism are started in reverse to output the slide from the slide pick-up and drop-off port.

[0012] Preferably, the liquid addition assembly includes:

[0013] A mounting base fixed inside the working chamber and located above the flotation bottle opening; a liquid pump fixed to the mounting base; a guide pipe connected to the input and output ends of the liquid pump; a rod retraction slot opened on the front side of the mounting base; a rod retraction servo fixed to the lower end of the rod retraction slot; and an extension rod fixed to the rotating shaft of the rod retraction servo; the output end of the guide pipe is fixed to the front end of the extension rod.

[0014] In the water-filled state, the extension rod is extended from the retraction slot by rotating the retraction servo motor to reach directly above the bottle opening. In the non-water-filled state, the extension rod is retracted into the retraction slot by rotating the retraction servo motor in the opposite direction.

[0015] Preferably, the slide loading unit includes:

[0016] The frame includes a hollow cavity within the frame, convenient access ports on the front and rear sides of the hollow cavity for easy loading and unloading of glass slides, glass slide locking assemblies installed on the left and right sides of the frame for clamping glass slides, and side pivots fixed to the left and right sides of the frame.

[0017] Preferably, the glass slide locking assembly includes:

[0018] The guide slide, the bottom slider installed in and slidably connected to the guide slide, the upper gripper installed on the upper surface of the bottom slider, and the clamping spring disposed between the upper gripper and the end face of the guide slide;

[0019] Temporary locking slots are provided at the upper and lower ends of the guide groove to temporarily lock the bottom slider.

[0020] Preferably, the slide lifting unit includes:

[0021] A lifting drive motor fixed to the main housing, a lifting drive screw fixedly connected to the lifting drive motor in a vertical direction on the same axis, a transmission nut connected to the lifting drive screw in a threaded transmission connection, and a fixing block fixedly connected to the transmission nut;

[0022] The side pivot is rotatably connected to the shaft hole opened in the fixed block.

[0023] Preferably, the slide reversal mechanism includes:

[0024] A flipping transmission body is fixed to the protruding end of the side rotating shaft. The side of the flipping transmission body is provided with a gear part for making it mesh and a square part for restricting its free rotation.

[0025] A locking rod is attached to the side of the flipping transmission body and fixedly connected to the main housing, with a rack section in the middle section that meshes with the gear section.

[0026] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0027] (1) The present invention provides a flotation auxiliary device for parasite egg inspection. By automating the operation of adding liquid and loading glass slides, it not only simplifies the operation steps of the traditional manual saline flotation method and improves work efficiency, but also prevents the technical problems of difficulty in accurately controlling the amount of liquid added during manual operation, easy overflow, and liquid leakage caused by hand shaking during the mechanical standardized operation.

[0028] (2) The present invention provides a floating auxiliary device for parasite egg examination. By adopting a spring clamping block structure, it achieves convenient and effective clamping of the glass slide. In addition, temporary latches are set at the upper and lower ends of the guide slide. When taking the glass slide, the upper clamp can be pushed by hand to lock it in the temporary latch, and then the glass slide can be taken out stably. This solves the problem that when pushing open the clamp, both hands are needed to keep it open, which leads to the inconvenience of not having hands to take the glass slide.

[0029] (3) The present invention provides a floating aggregation auxiliary device for parasite egg inspection. By using a servo mechanism, the extension and retraction of the extension rod are controlled in the water-filled and non-water-filled states. This not only ensures that the inlet of the guide tube is above the floating aggregation bottle opening, but also prevents the technical problem of interference between the guide tube and the glass slide when the glass slide is loaded later. Attached Figure Description

[0030] Figure 1 This is an internal structural diagram of the overall device of a flotation auxiliary device for parasite egg detection according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the first state structure of the slide reversing mechanism of a flotation auxiliary device for parasite egg detection according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the second state structure of the slide reversal mechanism of a flotation auxiliary device for parasite egg detection according to an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the slide locking assembly structure of a flotation auxiliary device for parasite egg inspection according to an embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the liquid addition component of a flotation auxiliary device for parasite egg detection according to an embodiment of the present invention.

[0035] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-main housing, 101-working chamber, 102-slide loading / unloading port, 103-float bottle mounting slot, 2-liquid addition and control unit, 210-water level sensor, 220-liquid addition assembly, 221-mounting base block, 222-guide pipe, 223-liquid addition pump, 224-retracting servo motor, 225-retracting slot, 226-extending rod, 3-slide loading unit, 300-frame, 301-hollow cavity, 302-accessible side. 310-Slide locking assembly, 311-Guide slide, 312-Bottom slider, 313-Upper gripper, 314-Tightening spring, 315-Temperature bayonet, 320-Side rotating shaft, 4-Slide lifting unit, 401-Lifting drive motor, 402-Lifting drive screw, 403-Transmission nut, 404-Fixing block, 5-Slide reversing mechanism, 500-Flipping transmission body, 501-Square part, 502-Gear part, 503-Locking rod, 504-Rack part, 6-Float bottle. Detailed Implementation

[0036] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0040] like Figures 1-5 As shown in this embodiment of the invention, the flotation auxiliary device for parasite egg detection includes:

[0041] The main housing 1, the working cavity 101 located in the middle of the main housing 1, the glass slide loading and unloading port 102 located above the working cavity 101, and the flotation bottle mounting groove 103 located on the bottom surface of the working cavity 101;

[0042] The liquid addition and control unit 2, which is fixed in the working chamber 101 for quantitatively adding liquid to the floating polymer bottle mounting groove 103, includes a water level sensor 210 for measuring the liquid level in the floating polymer bottle 6 and a liquid addition component 220 located above the bottle mouth of the floating polymer bottle 6.

[0043] A slide loading unit 3 for mounting slides, a slide lifting unit 4 for controlling the overall lifting and lowering of the slide loading unit 3, and a slide reversing mechanism 5 for controlling the reversal of the slide lifting unit 4;

[0044] The flotation bottle 6 containing fecal blocks is placed in the flotation bottle installation slot 103. While the water level sensor 210 monitors the liquid level in the bottle in real time, the liquid addition component 220 adds saturated saline solution to the bottle. After the liquid level reaches a state above the liquid surface without overflowing, the slide lifting unit 4 and the slide reversing mechanism 5 lower and reverse the slide loading unit 3 respectively until the slide is attached to the bottle mouth. After waiting for a fixed time, the slide lifting unit 4 and the slide reversing mechanism 5 are started in reverse to output the slide from the slide pick-up and drop port 102.

[0045] like Figure 5 As shown in this embodiment of the invention, the liquid addition assembly 220 includes:

[0046] The system comprises: a mounting base 221 fixed within the working chamber 101 and located above the flotation bottle opening; a liquid adding pump 223 fixed to the mounting base 221; a guide pipe 222 connected to the input and output ends of the liquid adding pump 223; a rod retraction groove 225 opened on the front side of the mounting base 221; a rod retraction servo 224 fixed to the lower end of the rod retraction groove 225; and an extension rod 226 fixed to the rotating shaft of the rod retraction servo 224. The output end of the guide pipe 222 is fixed to the front end of the extension rod 226.

[0047] In the water-filled state, the extension rod 226 is extended from the retraction groove 225 by rotating the retraction servo 224 to reach directly above the bottle opening. In the non-water-filled state, the extension rod 226 is retracted into the retraction groove 225 by rotating the retraction servo 224 in the opposite direction.

[0048] In this embodiment of the utility model, by means of a servo mechanism, the extension and retraction of the extension rod 226 are controlled in the water-filling state and the non-water-filling state. This not only ensures that the inlet of the guide tube 222 is located above the bottle mouth, but also prevents the technical problem of interference between the guide tube 222 and the glass slide when the glass slide is loaded later.

[0049] like Figure 1 As shown, in this embodiment of the present invention, the slide loading unit 3 includes:

[0050] The frame 300 includes a hollow cavity 301 located within the frame 300, convenient access ports 302 opened on the front and rear sides of the hollow cavity 301 for easy loading and unloading of glass slides, glass slide locking assemblies 310 installed on the left and right sides of the frame 300 for clamping glass slides, and side rotating shafts 320 fixed on the left and right sides of the frame 300.

[0051] like Figure 1 and Figure 4 As shown in this embodiment of the invention, the glass slide locking assembly 310 includes:

[0052] Guide slide 311, bottom slider 312 installed in and slidably connected to the guide slide 311, upper gripper 313 installed on the upper surface of the bottom slider 312, and top spring 314 disposed between the upper gripper 313 and the end face of the guide slide 311;

[0053] Temporary locking slots 315 are provided at the upper and lower ends of the guide groove 311 for temporarily locking the bottom slider 312.

[0054] In this embodiment of the utility model, a spring clamping block structure is adopted to achieve convenient and effective clamping of the glass slide. In addition, temporary latches 315 are provided at the upper and lower ends of the guide slide 311. When taking the glass slide, the upper clamp 313 can be pushed by hand to lock it in the temporary latch 315, and then the glass slide can be taken out stably. This solves the problem that when pushing open the clamp, both hands are needed to keep it open, which makes it inconvenient to take the glass slide without hands.

[0055] like Figure 1 As shown, in this embodiment of the present invention, the glass slide lifting unit 4 includes:

[0056] The lifting drive motor 401 is fixed to the main housing 1; the lifting drive screw 402 is fixedly connected to the lifting drive motor 401 in a vertical direction; the transmission nut 403 is threadedly connected to the lifting drive screw 402; and the fixing block 404 is fixedly connected to the transmission nut 403.

[0057] The side rotating shaft 320 is rotatably connected to the shaft hole opened in the fixed block 404.

[0058] like Figures 1-3 As shown, in this embodiment of the present invention, the slide reversing mechanism 5 includes:

[0059] A flipping transmission body 500 is fixed to the protruding end of the side rotating shaft 320. The side of the flipping transmission body 500 is provided with a gear part 502 for making it mesh and a square part 501 for restricting its free rotation.

[0060] A locking rod 503, which is closely attached to the side of the flipping transmission body 500 and fixedly connected to the main housing 1, has a rack part 504 in its middle section that meshes with the gear part 502.

[0061] The working principle of this invention is as follows: First, the flotation bottle 6 containing fecal blocks is placed in the flotation bottle mounting groove 103; then, while the water level sensor 210 monitors the liquid level in the bottle in real time, the liquid addition component 220 adds saturated saline solution to the bottle. After the liquid level reaches a state above the surface but without overflowing, the retraction servo motor is controlled to retract the extension rod to prevent subsequent structural interference; next, the lifting drive motor is controlled to rotate, thereby driving the fixed block to move up and down, thus driving the entire glass slide loading unit to move up and down; then, when it moves up and down to the rack section 504 of the locking rod 503, the rack... The rack portion 504 meshes with the gear portion 502 on the surface of the flipping transmission body 500, causing the flipping transmission body to rotate 180 degrees, thereby reversing the glass slide. When it moves downward after leaving the rack portion 504, the square portion fits against the surface of the locking rod, preventing arbitrary rotation of the flipping transmission body and ensuring the controllability of the glass slide rotation angle until the glass slide is placed at the mouth of the flotation bottle 6. At this time, the lifting drive motor 401 stops rotating. Then, after waiting for a preset time, the lifting drive motor can be reversed to rotate, so as to remove the glass slide from the glass slide pick-up and drop-off port 102 above.

[0062] In this embodiment of the utility model, by automating the operation of adding liquid and loading glass slides, not only are the operation steps of the traditional artificial salt flotation method simplified and the work efficiency improved, but the standardized mechanical operation also prevents the technical problems of difficulty in accurately controlling the amount of liquid added during manual operation, easy overflow, and liquid leakage caused by hand shaking.

[0063] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A flotation auxiliary device for detecting parasite eggs, characterized in that, include: The main housing (1), the working cavity (101) located in the middle of the main housing (1), the glass slide loading and unloading port (102) located above the working cavity (101), and the flotation bottle mounting groove (103) opened on the bottom surface of the working cavity (101); A liquid addition measurement and control unit (2) fixed in the working chamber (101) for quantitatively adding liquid to the floating polymer bottle mounting groove (103) includes a water level sensor (210) for measuring the liquid level in the floating polymer bottle (6) and a liquid addition assembly (220) located above the bottle mouth of the floating polymer bottle (6). A slide loading unit (3) for mounting slides, a slide lifting unit (4) for controlling the overall lifting and lowering of the slide loading unit (3), and a slide reversing mechanism (5) for controlling the reversal of the slide lifting unit (4); The flotation bottle (6) containing fecal blocks is placed in the flotation bottle installation slot (103). While the liquid level in the bottle is monitored in real time by the water level sensor (210), the liquid addition component (220) adds saturated saline solution into the bottle. After the liquid level reaches a state above the liquid surface without overflowing, the slide lifting unit (4) and the slide reversing mechanism (5) respectively lower and reverse the slide loading unit (3) until the slide is attached to the bottle mouth. After waiting for a fixed time, the slide lifting unit (4) and the slide reversing mechanism (5) are started in reverse to output the slide from the slide pick-up and drop port (102).

2. The flotation auxiliary device for parasite egg detection according to claim 1, characterized in that, The liquid addition assembly (220) includes: A mounting base (221) fixed inside the working chamber (101) and located above the flotation bottle opening; a liquid pump (223) fixed to the mounting base (221); a guide pipe (222) connected to the input and output ends of the liquid pump (223); a rod retraction groove (225) opened on the front side of the mounting base (221); a rod retraction servo (224) fixed to the lower end of the rod retraction groove (225); and an extension rod (226) fixed to the shaft of the rod retraction servo (224); the output end of the guide pipe (222) is fixed to the front end of the extension rod (226); In the water-filled state, the extension rod (226) is extended from the retraction groove (225) by rotating the retraction servo (224) to reach directly above the bottle mouth. In the non-water-filled state, the extension rod (226) is retracted into the retraction groove (225) by rotating the retraction servo (224) in the opposite direction.

3. The flotation auxiliary device for parasite egg detection according to claim 2, characterized in that, The slide loading unit (3) includes: The frame (300) includes a hollow cavity (301) located within the frame (300), convenient side openings (302) opened on the front and rear sides of the hollow cavity (301) for easy loading and unloading of glass slides, glass slide locking assemblies (310) installed on the left and right sides of the frame (300) for clamping glass slides, and side pivots (320) fixed on the left and right sides of the frame (300).

4. The flotation auxiliary device for parasite egg detection according to claim 3, characterized in that, The glass slide locking assembly (310) includes: Guide slide (311), bottom slider (312) installed in and slidably connected to the guide slide (311), upper gripper (313) installed on the upper surface of the bottom slider (312), and top clamping spring (314) provided between the upper gripper (313) and the end face of the guide slide (311); Temporary latches (315) are provided at the upper and lower ends of the guide groove (311) for temporarily locking the bottom slider (312).

5. The flotation auxiliary device for parasite egg detection according to claim 4, characterized in that, The glass slide lifting unit (4) includes: The lifting drive motor (401) is fixed to the main housing (1), the lifting drive screw (402) is fixedly connected to the lifting drive motor (401) in the vertical direction, the transmission nut (403) is threadedly connected to the lifting drive screw (402), and the fixing block (404) is fixedly connected to the transmission nut (403). The side pivot (320) is rotatably connected to the shaft hole opened in the fixed block (404).

6. The flotation auxiliary device for parasite egg detection according to claim 5, characterized in that, The slide reversal mechanism (5) includes: A flipping transmission body (500) is fixed to the protruding end of the side rotating shaft (320). The side of the flipping transmission body (500) is provided with a gear part (502) for making it mesh and a square part (501) for restricting its free rotation. A locking rod (503) is attached to the side of the flipping transmission body (500) and fixedly connected to the main housing (1), with a rack (504) in the middle section that meshes with the gear part (502).

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