A multifunctional portable body fluid detection device

Abstract

The present invention is a multifunctional portable body fluid detection device, which is composed of a cover glass and a slide glass. A liquid specimen filling chamber is formed between the cover glass and the slide glass, wherein: a slidable wedge is provided between the cover glass and the slide glass. An inclined surface corresponding to the wedge surface of the wedge is provided on one of the lower surface of the cover glass and the upper surface of the slide glass; the cover glass is movable relative to the slide glass. The different corresponding positions of the wedge surface and the inclined surface enable the liquid specimen filling chamber to have an adjustable height that can adapt to the inflow of liquids with different liquid tensions. The present invention can adjust the gap between the cover glass and the slide glass to adapt to the smooth inflow of liquids with different liquid tensions between the cover glass and the slide glass. Therefore, it has the function of being applicable to a variety of liquids.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, in particular to a multifunctional portable body fluid detection device. Background Art

[0002] In order to monitor the health status of the human body, it is necessary to observe various body fluids secreted by the human body, including male semen, human sweat, urine, saliva, blood, etc.

[0003] In our daily lives, we sometimes need to observe body fluids. For example, when we feel unwell or it is necessary to observe, screening before entering the hospital can provide a preliminary understanding of our physical condition and health status, so as to help us make further medical treatment choices or understand our physical condition. This type of screening does not need to be too accurate or authoritative, it is only a preliminary understanding of our physical condition. Therefore, going to the hospital for routine blood, urine, semen and other human secretions observations under such a need will cost a huge amount of money, time and energy, and is therefore completely uneconomical.

[0004] Under such a demand, we hope to have a home-use body fluid observation device that is easy to carry and can be observed anytime and anywhere. To this end, a portable body fluid observation device has been developed in this industry. The principle is to magnify the body fluid through a magnifying glass, and then use the mobile phone camera to observe the magnifying glass, so that the condition of the body fluid can be seen from the mobile phone screen. For example, patent CN201920426871.8 is a portable body fluid observation device that is easy to count, patent CN201910256012.3 is a portable home body fluid detection device, and patent CN201920426651.5 is a portable observation device for semen, urine, and saliva. The above technologies all disclose portable home-use body fluid observation devices that can observe semen, sweat, urine, saliva, blood, etc.

[0005] However, different body fluids have different viscosities. Specifically, different body fluids have different liquid tensions. Liquids with different liquid tensions have different flow rates when flowing. For example, sweat is mostly salty liquid, and its liquid tension is basically the same, greater than that of pure water, and its fluidity is lower than that of pure water. Semen is mainly composed of water, fructose, protein, and fat, and has the characteristics of poor fluidity and high liquid tension. Therefore, different liquid tensions and different fluidities result in the liquid not flowing smoothly when it is dripped between the cover glass and the slide of the body fluid detection device, especially for liquids with high viscosity (poor fluidity and high liquid tension). Therefore, the actual use of portable body fluid detection devices is limited by this. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a multifunctional portable body fluid detection device that can adapt to a variety of liquids with different viscosities (specifically, different fluidities and different liquid tensions).

[0007] The present invention provides a multifunctional portable body fluid detection device, which is composed of a cover glass and a slide glass. A liquid specimen filling chamber is formed between the cover glass and the slide glass, wherein a slidable wedge is provided between the cover glass and the slide glass.

[0008] At least one of the lower surface of the cover glass and the upper surface of the slide glass is provided with an inclined surface corresponding to the wedge-shaped surface of the wedge block; the cover glass is movable relative to the slide glass.

[0009] The different corresponding positions of the wedge-shaped surface and the inclined surface enable the liquid label filling chamber to have an adjustable height that can adapt to the inflow of liquids with different liquid tensions.

[0010] The multifunctional portable body fluid detection device as described above is further described as follows: the inclined surfaces are provided on both sides of the lower surface of the cover glass, and the inclined directions and angles of the inclined surfaces on both sides are the same.

[0011] A wedge block is provided below the inclined surfaces on both sides, and the upper surfaces of the wedge blocks on both sides are provided with the wedge-shaped surfaces, and the inclination directions and inclination angles of the wedge-shaped surfaces on both sides are the same.

[0012] Vernier scale lines are set on the wedge-shaped surface, and fixed scale lines are set on the inclined surface. Different vernier scale lines correspond to the fixed scale lines, and different corresponding positions of the wedge-shaped surface and the inclined surface are calibrated.

[0013] The multifunctional portable body fluid detection device as described above is further described as follows: the cover glass is a flat surface;

[0014] The glass slide consists of a specimen carrier at the bottom and a middle groove surrounded by groove walls around the specimen carrier.

[0015] The cover glass is placed in the middle groove.

[0016] The front side of the cover glass is provided with a liquid specimen dripping notch, and the rear side is provided with an atmospheric siphon port, and the liquid specimen dripping notch and the atmospheric siphon port are both connected to the liquid specimen filling chamber.

[0017] The multifunctional portable body fluid detection device as described above is further described as follows: the cover glass is fixed in the central groove by a column; the column is made of elastic material, and the lower surface of the cover glass is movable relative to the upper surface of the central groove through the contraction and stretching of the column.

[0018] The height of the pillar in a natural state is the lowest gap height between the lower surface of the cover glass and the upper surface of the middle groove.

[0019] The facing sides of the wedge blocks on both sides are the inner sides of the wedge blocks. At least two columns are arranged on the inner side of each wedge block, with a total of four columns. A liquid specimen filling chamber is formed between the four columns.

[0020] The multifunctional portable body fluid detection device as described above is further described as follows: a groove wall notch or one of the holes for the wedge to pass through is provided on the groove wall, the wedge passes through the groove wall notch or one of the holes from the rear side of the middle groove and passes out from the front side, and a thrust spring is provided to push the wedge backward.

[0021] The multifunctional portable body fluid detection device as described above is further described as follows: the wedge blocks on both sides are merged into a whole through the tail end, and a pin shaft with an axis parallel to the wedge block is set at the tail end, so that the pin shaft and the wedge blocks on both sides form a Y shape.

[0022] The multifunctional portable body fluid detection device as described above is further described as including a frame, wherein a pin hole for guiding the pin shaft is provided at the rear end of the frame, and the rear section of the pin shaft is provided in the pin hole.

[0023] The multifunctional portable body fluid detection device as described above is further described as follows: a protrusion is fixed to the middle section of the pin shaft, and a lever is provided for pushing the protrusion.

[0024] The middle section of the lever cooperates with the convex block, one end of the lever is fixed by a hinge, and the other end is provided with a push pin for pushing the lever.

[0025] The multifunctional portable body fluid detection device as described above is further described as follows: the push pin is a screw inserted into the nut, the screw is radially fixed, axially movable, and parallel to the pin shaft; the frame is provided with a screw hole parallel to the pin hole, and the screw is arranged in the screw hole.

[0026] The nut is axially fixed and rotatable, and its outer surface is provided with knurling.

[0027] The lever has a first section from the protrusion to the hinge fixing point, and a second section from the protrusion to the contact point with the ejector pin, and the length of the second section is 1.3 times or more of the first section.

[0028] One section of the screw hole is provided with a nut groove for installing a nut.

[0029] The multifunctional portable body fluid detection device as described above is further described as follows: the frame is composed of a main body and a cover.

[0030] The body:

[0031] A main mounting groove adapted to the outer surface of the slide is provided, and a lever mounting groove is located behind the main mounting groove and is used to install the lever, and a screw hole and a pin hole are respectively provided behind the lever mounting groove;

[0032] A spring mounting hole is provided in front of the main mounting groove and is communicated with one of the notch and the hole in the groove wall. The front end of the wedge is inserted into the spring mounting hole, and a thrust spring is installed in the spring mounting hole.

[0033] The cover body:

[0034] The lever installation groove, the screw hole and the pin hole are covered; a nut groove is opened on the cover body, and the knurling protrudes outward from the nut groove.

[0035] The present invention can adjust the gap between the cover glass and the slide glass to allow liquids with different liquid tensions to flow smoothly between the cover glass and the slide glass, thus having the function of being applicable to a variety of liquids.

[0036] On the one hand, the gap between the cover glass and the slide glass can be adjusted to be smaller, so that the liquid with low liquid tension can flow smoothly between the cover glass and the slide glass. Because the gap between the cover glass and the slide glass is smaller, it is more suitable for observing subtle substances and reducing errors. On the other hand, the gap between the cover glass and the slide glass can be adjusted to be larger, so that the liquid with high liquid tension can also flow smoothly between the cover glass and the slide glass. Since increasing the gap may sacrifice the observation performance of some subtle substances, the gap can be adjusted to be smaller again after the liquid flows smoothly between the cover glass and the slide glass to obtain the performance of observing subtle substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions involved in the embodiments of the present application, the following will briefly introduce the drawings required for use in the description of the embodiments. However, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be easily obtained based on these drawings without any creative work.

[0038] Figure 1 It is a structural diagram of the present invention;

[0039] Figure 2 This is a schematic diagram of the coordination between the inclined surface and the wedge-shaped surface of the present invention;

[0040] Figure 3 This is a schematic diagram of the cooperation of the ejector pin, lever, and wedge block of the present invention;

[0041] Figure 4 It is a structural diagram of the glass slide and cover glass of the present invention;

[0042] Figure 5It is a structural diagram of the glass slide of the present invention;

[0043] Figure 6 It is a structural diagram of the cover glass of the present invention;

[0044] Figure 7 It is a structural diagram of the frame of the present invention;

[0045] Figure 8 This is a structural diagram of the nut and pin hole on the frame of the present invention;

[0046] Figure 9 is a cross-sectional view of the present invention, showing the mounting structure of the frame, slide, wedge, and cover glass;

[0047] Figure 10 It is an exploded structural diagram of the present invention, showing the mounting structure of the frame, slide, wedge, and cover glass.

[0048] Frame 1; slide 2; wedge 3; lever 4; lever mounting slot 11; main mounting slot 12; microscope 13; screw hole 14; nut slot 15; spring mounting hole 16; key 17; pin hole 18; inclined surface 22; wedge surface 23; notch in the slot wall 24; notch for liquid specimen dripping 25; atmospheric siphon port 26; cover glass 27; column 28; fixed scale line 29; pin 31; thrust spring 32; bump 33; vernier scale line 34; ejector pin 41; nut 42; hinge 43. DETAILED DESCRIPTION

[0049] In the description of the present invention, the directions or positional relationships indicated by “center”, “upper”, “lower”, “left”, “right”, etc. are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0050] The multifunctional portable body fluid detection device of the present invention is composed of a cover glass 27 and a slide glass 2.

[0051] A liquid specimen filling chamber is formed between the cover glass and the slide glass. When the present invention is working, liquids such as semen, sweat, urine, saliva, and blood need to be filled into the liquid specimen filling chamber. Since there is a microscope 13 (passing through the main body of the frame) under the slide glass, and the cover glass is made of transparent material, there is a natural light source above the cover glass, so light can penetrate from the cover glass into the liquid specimen filling chamber. The slide glass is also made of transparent material, so the liquid specimen in the liquid specimen filling chamber can be observed from the microscope below.

[0052] Aim the microscope 13 below at the front camera of the mobile phone, turn on the front camera of the mobile phone, and you can observe the liquid specimen magnified by the microscope from the mobile phone display. The magnification can reach about 20 times or more depending on the setting of the microscope.

[0053] In one example, both the cover glass 27 and the slide glass 2 are made of optical plastic.

[0054] refer to Figure 4 、 Figure 5 、 Figure 6 The cover glass 27 is flat, 1.5 mm thick, and has an overall circular shape with a radius of 5 mm. It has a first arc-shaped notch with a radius of 3 mm on its front side. A second arc-shaped notch is also provided on the wall of the groove, corresponding to the arc-shaped notch. The first and second arc-shaped notches combine to form a liquid specimen droplet notch 25 with a radius of approximately 3 mm.

[0055] The back side of the cover glass, that is, in the direction opposite to the first arc-shaped notch, has a plane extending backward in the horizontal direction. A third arc-shaped notch is provided on the groove wall at a position corresponding to the plane. The gap between the plane and the third arc-shaped notch constitutes an atmospheric siphon port 26. Since the liquid specimen dripping notch 25 and the atmospheric siphon port 26 are both connected to the liquid specimen filling chamber, when the liquid drips into the liquid specimen dripping notch 25, the atmospheric pressure presses the liquid into the liquid specimen filling chamber, and the other side siphons the pressed liquid specimen through the atmospheric siphon port, so the liquid specimen is more easily filled into the liquid specimen filling chamber.

[0056] In one example, the slide 2 is composed of a specimen carrier at the bottom and groove walls around the specimen carrier, and the groove walls form a middle groove. After the cover glass 27 is placed in the middle groove, the upper surface of the cover glass and the edge of the groove wall are basically maintained at the same height. Of course, since the height of the cover glass is adjustable, it is not always at the same height.

[0057] refer to Figure 4 、 Figure 9 、 Figure 10 The cover glass 27 is fixed in the middle groove by a post 28. The post is made of elastic material. For example, the post is made of rubber. The upper surface of the rubber post is glued to the lower surface of the cover glass, and the lower surface of the rubber post is glued to the upper surface of the middle groove. Alternatively, the post can be a spring.

[0058] Since the pillars 28 are made of elastic material, the height of the cover glass is movable. The contraction and extension of the pillars enable the lower surface of the cover glass to move relative to the upper surface of the middle groove.

[0059] The height of the pillars 28 in their natural state is the minimum gap between the lower surface of the cover glass and the upper surface of the central groove, that is, when the rubber pillars are retracted to their natural state. In one example, the height of the pillars is 1 mm and the diameter is 2 mm. The minimum gap height allows for the use of liquids with lower viscosities.

[0060] One example is that when the facing sides of the wedge blocks on both sides are regarded as the inner sides of the wedge blocks, two columns are provided on the inner sides of each wedge block, for a total of four columns, and the four columns are provided around the liquid specimen filling chamber.

[0061] refer to Figure 1 、 Figure 3 A slidable wedge 3 is provided between the cover glass 27 and the slide glass 2.

[0062] The structure of the wedge 3 is a "Y" shape, with a pin 31 at the tail end, which is bifurcated into two arms on the pin. The two arms are two wedges, and the axis of the wedge is parallel to the axis of the pin. The tail ends of the two wedges are merged together, and the wedge and the pin 31 are merged into a whole. In an example, the pin is 20mm long and 3mm in diameter; the wedge is 22mm long and 2mm thick (the distance between the left and right walls of the single-sided wedge) and the distance between the two wedges is 6.4mm.

[0063] The opposite sides between the two wedges constitute the left and right side walls of the liquid specimen filling chamber.

[0064] The wedge 3 can be made of a material with relatively high strength, such as aluminum alloy, or of course hard nylon plastic.

[0065] The inclined surface 22 corresponding to the wedge-shaped surface 23 of the wedge block can be set on the lower surface of the cover glass or on the upper surface of the slide.

[0066] refer to Figure 2 、 Figure 3 An example is that inclined surfaces 22 are set on both sides of the lower surface of the cover glass, and the inclination direction and inclination angle of the inclined surfaces on both sides are the same, wedge blocks 3 are set below the inclined surfaces on both sides, and wedge surfaces 23 are set on the upper surfaces of the wedge blocks on both sides, and the inclination direction and inclination angle of the wedge surfaces on both sides are the same.

[0067] Specifically, the wedge-shaped surface is tilted from the rear to the front, with the rear side being the higher side of the wedge surface and the front side being the lower side. This creates a wedge with a thicker rear side and a thinner front side. The tilt angle is 7° between the wedge surface and the lower surface of the wedge.

[0068] Bevels 22 are provided on both sides of the lower surface of the cover glass, and the inclination direction of the bevel 22 is also from the back side to the front side, that is, the back side is the higher side of the bevel, and the front side is the lower side of the bevel. The inclination angle is: the bevel forms a 7° angle with the upper surface of the cover glass.

[0069] In the above-mentioned wedge block and cover glass structure, since the cover glass is fixed on the four sides but movable in the up and down directions, when the wedge block slides forward, the cooperation between the wedge surface and the inclined surface will push the cover glass away from the upper surface of the middle groove; when the wedge block slides backward, it eliminates the push on the cover glass, so the cover glass moves towards the upper surface of the middle groove under the contraction of the elastic column 28.

[0070] The different corresponding positions of the wedge surface 23 and the inclined surface 22 provide the liquid specimen filling chamber with an adjustable height to accommodate the inflow of liquids having different liquid tensions. When the cover glass is moved away from the upper surface of the central groove, the space in the liquid specimen filling chamber becomes larger, allowing liquids having greater tension (e.g., semen) to flow smoothly into the liquid specimen filling chamber. Furthermore, when liquids having greater tension are dripped into the liquid specimen dripping notch 25, the space in the liquid specimen filling chamber can be increased, and after the liquid has entered the liquid specimen filling chamber, the space in the liquid specimen filling chamber can be restored (reduced).

[0071] refer to Figure 3 , a vernier scale line 34 is set on the wedge surface 23, and a fixed scale line 29 is set on the inclined surface 22 (reference Figure 4 、 Figure 6 As shown), different vernier scale lines 34 correspond to the fixed scale lines 29, marking the different corresponding positions of the wedge surface and the inclined surface.

[0072] Since the present invention can calculate the substance content per unit volume of body fluid, for example, calculate the number of active sperm in semen per unit volume, the unit volume needs to be a calibration quantity, according to the formula V=sh, where: V is the semen volume of the number of active sperm; s is the set calculation area, when the semen flows into the liquid standard filling chamber, it will cover the entire glass slide, and a partial area on the glass slide is taken as the calculation area, and a dividing line (frame) is set on the glass slide to determine the calculation area; h is the height, when the semen flows into the liquid standard filling chamber, it will fill the space between the lower surface of the cover glass and the upper surface of the glass slide, so h here is actually the distance between the lower surface of the cover glass and the upper surface of the glass slide.

[0073] Therefore, by corresponding different vernier scale lines 34 to the fixed scale lines 29, the different corresponding positions of the wedge surface 23 and the inclined surface 22 are calibrated. By designing the inclination of the wedge surface and the inclined surface, the different corresponding positions of the wedge surface and the inclined surface are used to obtain the spacing between the lower surface of the cover glass and the upper surface of the slide. In the present invention, a vernier scale line 34 is set on the wedge surface, and three fixed scale lines 29 are set on the inclined surface. When the vernier scale line 34 is aligned with the last fixed scale line on the inclined surface, it represents the minimum spacing between the lower surface of the cover glass and the upper surface of the slide at this time. The gap data is set during the design. At this time, the gap data can be substituted into the formula V=sh to calculate the volume of the body fluid, and of course, it can also be calculated based on the volume. Similarly, when the vernier scale line slides to the second fixed scale line, the spacing between the lower surface of the cover glass and the upper surface of the slide is set or measured in advance, and the volume of the body fluid can also be calculated. The same is true for the third fixed scale mark; therefore, the spacing h between the lower surface of the coverslip and the upper surface of the slide can be directly determined by referring to the product design manual when the vernier scale mark is aligned with different fixed scale marks. For example, the minimum spacing h between the bottom surface of the coverslip and the top surface of the slide is 0.5mm when the vernier scale mark is aligned with the last fixed scale mark, 0.8mm when the vernier scale mark is aligned with the middle fixed scale mark, and 1mm when the vernier scale mark is aligned with the frontmost fixed scale mark.

[0074] The groove wall is provided with a groove wall notch 24 or a hole for the wedge to pass through. Figure 1 、 Figure 4 、 Figure 5 In this example, a groove wall notch 24 is provided on the groove wall.

[0075] The groove wall notch 24 is connected to the lever mounting groove at the rear and to the spring mounting hole 16 at the front, so that the wedge can pass through the groove wall from the lever mounting groove and then enter the spring mounting hole 16.

[0076] Therefore, groove wall notches 24 are provided on both sides of the groove wall for the two wedges to pass through.

[0077] The wedge block passes through the groove wall notch 24 from the rear side of the middle groove and passes out from the front side, and a thrust spring 32 is provided to push the wedge block backward.

[0078] refer to Figure 1 The rear end of the frame 1 of the present invention is provided with a pin hole 18 for guiding the pin shaft 31. The rear section of the pin shaft is arranged in the pin hole 18, and the pin shaft and the pin hole are clearance-fitted so that the pin shaft can move freely axially and remain radially fixed.

[0079] refer to Figure 3A protrusion 33 is fixed to the middle section of the pin shaft, protruding from the middle section of the pin shaft (approximately the bifurcation of the two wedges). The movement of the middle section of the lever is used to push the protrusion, and the movement of the protrusion 33 brings the two wedges forward and backward.

[0080] One end of lever 4 is fixed by hinge 43, and the front end of push pin 41 is used to push the other end of lever 4. Therefore, under the push of the front end of push pin 41, lever 4 rotates about hinge 43, so that the movement of the middle section of the lever is used to push the bump. In one example, the lever is 21 mm long.

[0081] refer to Figure 1 、 Figure 8 The ejector pin 41 is a screw rod that is inserted into the nut 42. The screw rod is fixed radially and cannot rotate, but can move axially. For example, the frame 1 is provided with a screw rod hole 14 parallel to the pin hole 18. The screw rod is disposed in the screw rod hole 14. A key groove is provided on the side of the screw rod. A key 17 is provided in the screw rod hole so that the key 17 is engaged with the key groove, thereby preventing the screw rod from rotating while not restricting the screw rod from moving axially.

[0082] The ejector pin 41 is parallel to the pin shaft 31 .

[0083] refer to Figure 8 The nut 42 is axially fixed and rotatable. The nut 42 is installed in the nut groove 15. The nut groove 15 is actually a section of the screw hole, and the nut groove is concentric with the screw hole.

[0084] The outer surface of the nut 42 is provided with knurling, and the user can manually move the knurling when adjusting the rotation of the nut. When the nut is rotated, the screw rod is moved axially to push or release the push lever.

[0085] refer to Figure 3 , wherein the lever 4 has a first section from the protrusion to the hinge fixing point, and a second section from the protrusion to the contact point with the ejector pin, and the length of the second section is 1.3 times or more of the first section; an example is that the length of the second section is twice that of the first section. When the ejector pin pushes the lever to move a distance, the lever only pushes the protrusion to move a smaller distance, thereby making the wedge move more accurately, which is conducive to making the vernier scale line and the fixed scale line more accurately aligned.

[0086] For example, the knurled nut has a radius of 4 mm, and the screw (thrust pin) has a radius of 2 mm and is 180 mm long. Both the nut and the screw can be made of nylon plastic.

[0087] refer to Figure 7 The frame 1 of the present invention is composed of two parts, one part is at the bottom and serves as the main body for mounting various accessories, and the other part is the cover. The main body and the cover can be fixed together by screws or glued in one go.

[0088] The main body is provided with a main mounting groove 12 adapted to the outer surface of the slide 2. The outer surface of the slide is circular, so the main mounting groove 12 is also circular. The outer diameter of the slide and the main mounting groove are both 18 mm.

[0089] A lever mounting slot 11 is located behind the main mounting slot and is used to mount a lever. A screw hole 14 and a pin hole 18 are provided behind the lever mounting slot. The bifurcation of the two wedges is also within the lever mounting slot 11.

[0090] In front of the main mounting slot is a spring mounting hole 16, which connects to the notch in the slot wall, allowing the front end of the wedge to be inserted into the spring mounting hole. A thrust spring 32 is installed in the spring mounting hole to propel the wedge backward. The main body is roughly flat and 6mm thick, with a width of 30mm in the left-right direction and a length of 57mm in the front-to-back direction.

[0091] The cover is used to cover the lever mounting groove 11, the screw hole 14 and the pin hole 18; in fact, the screw hole, the pin hole and the nut groove are half set on the frame body and the other half is set on the cover body. When the cover body is buckled onto the frame body, the screw hole, the pin hole and the nut groove are formed.

Claims

1. A multifunctional portable body fluid testing device, comprising a frame, a cover glass, and a glass slide. A liquid specimen filling chamber is formed between the cover glass and the glass slide. A slidable wedge is disposed between the cover glass and the glass slide. Inclined surfaces corresponding to the wedge-shaped surfaces of the wedge are disposed on both sides of the lower surface of the cover glass, and wedges are disposed below the inclined surfaces on both sides. The cover glass is movable relative to the glass slide. The different corresponding positions of the wedge and inclined surfaces allow the liquid specimen filling chamber to have an adjustable height to accommodate the inflow of liquids with different liquid tensions. Its characteristics are: The slide consists of a specimen carrier at the bottom and a central groove formed by groove walls surrounding the specimen carrier; a cover glass is fixed in the central groove by a column made of elastic material, and the height of the column in its natural state is the minimum gap height between the lower surface of the cover glass and the upper surface of the central groove; The groove wall is provided with a groove wall notch or a hole for the wedge to pass through; The wedges on both sides are combined into a whole through the tail end, and a pin shaft with an axis parallel to the wedge block is set at the tail end. A pin hole for guiding the pin shaft is set at the rear end of the frame body, and the rear section of the pin shaft is set in the pin hole; A protrusion is fixed to the middle section of the pin shaft, and a lever is provided for pushing the protrusion forward; the middle section of the lever cooperates with the protrusion, one end of the lever is fixed by a hinge, and the other end is provided with a push pin for pushing the lever; The ejector pin is a screw inserted into the nut, which is fixed in the radial direction and movable in the axial direction and is parallel to the pin shaft; the frame is provided with a screw hole parallel to the pin hole, and the screw is arranged in the screw hole; The nut is fixed axially and can be operated to rotate; A thrust spring is provided to push the wedge backward.

2. A multifunctional portable body fluid detection device according to claim 1, characterized in that: The inclined surfaces on both sides of the lower surface of the cover glass have the same inclination direction and inclination angle; The upper surfaces of the wedge blocks on both sides are provided with the wedge-shaped surfaces, and the inclination directions and inclination angles of the wedge-shaped surfaces on both sides are the same; Vernier scale lines are set on the wedge-shaped surface, and fixed scale lines are set on the inclined surface. Different vernier scale lines correspond to the fixed scale lines, and different corresponding positions of the wedge-shaped surface and the inclined surface are calibrated.

3. A multifunctional portable body fluid detection device according to claim 2, characterized in that: in, The opposite sides of the wedge blocks on both sides are regarded as the inner sides of the wedge blocks. Two columns are arranged on the inner side of each wedge block, with four columns in total. A liquid specimen filling chamber is formed between the four columns.

4. A multifunctional portable body fluid detection device according to claim 1, characterized in that: The cover glass is flat; The front side of the cover glass is provided with a liquid specimen dripping notch, and the rear side is provided with an atmospheric siphon port, and the liquid specimen dripping notch and the atmospheric siphon port are both connected to the liquid specimen filling chamber.

5. The multifunctional portable body fluid detection device according to claim 1, characterized in that: The wedge block passes through one of the notch and the hole in the groove wall from the outside of the rear side of the middle groove and passes out from the front side. The thrust spring is arranged in the hole.

6. The multifunctional portable body fluid detection device according to claim 1, characterized in that: The pin and the wedges on both sides form a Y shape.

7. The multifunctional portable body fluid detection device according to claim 1, characterized in that: The outer surface of the nut is provided with knurling.

8. The multifunctional portable body fluid detection device according to claim 1, characterized in that: in, The lever has a first section from the protrusion to the hinge fixing point, and a second section from the protrusion to the contact point with the ejector pin, and the length of the second section is 1.3 times or more of the first section; One section of the screw hole is provided with a nut groove for installing a nut.

9. The multifunctional portable body fluid detection device according to claim 1, characterized in that: The frame is composed of a main body and a cover; The body: A main mounting groove adapted to the outer surface of the slide is provided, and a lever mounting groove is located behind the main mounting groove and is used to install the lever, and a screw hole and a pin hole are respectively provided behind the lever mounting groove; A spring mounting hole is provided in front of the main mounting groove and is communicated with one of the notches or holes in the groove wall. The front end of the wedge is inserted into the spring mounting hole, and a thrust spring is installed in the spring mounting hole. The cover body: The lever installation groove, the screw hole and the pin hole are covered; a nut groove is opened on the cover body, and the knurling protrudes outward from the nut groove.

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