CN212111434U

CN212111434U - Detection card shell

Info

Publication number: CN212111434U
Application number: CN202020208241.6U
Authority: CN
Inventors: 吕传臣; 周逸; 姜欣
Original assignee: Beijing Bioneovan Co ltd
Current assignee: Beijing Bioneovan Co ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-12-08
Anticipated expiration: 2030-02-25

Abstract

The utility model discloses a detection card shell, which comprises a panel, a bottom plate and an amplifying assembly; the bottom plate is used for bearing a detection strip, the panel is provided with a sample adding port for dropwise adding a sample to the detection strip and an observation window for observing detection results of a detection line and a quality control line on the detection strip, the sample adding port and the observation window are arranged at intervals along the length direction of the panel, and the panel is detachably connected with the bottom plate; the magnifying assembly comprises a magnifying glass, and the magnifying glass is arranged in the observation window and used for magnifying and observing detection results of the detection line and the quality control line on the detection strip. The detection card shell can clearly observe the detection line and the quality control line so as to avoid misjudgment of the detection result caused by unclear observation of the color change condition of the detection strip in the detection process.

Description

Detection card shell

Technical Field

The utility model relates to an immunoassay technical field especially indicates a detect card shell.

Background

The colloidal gold rapid diagnosis technology is a novel in vitro diagnosis technology developed on the basis of monoclonal antibody technology, colloidal gold immunochromatography technology and novel chromatographic materials in the 90 s of the 20 th century, develops rapidly in recent years, and is widely applied to the biological field, particularly medical inspection. The technique is based on the following principle: the method comprises the steps of labeling an antigen or an antibody with colloidal gold, coating the corresponding matched specific antigen or antibody on a nitrocellulose membrane detection layer, moving forward through capillary action when a sample to be detected contains the corresponding specific antibody or antigen, combining with the colloidal gold label to form a colloidal gold labeled complex to be detected, and carrying out specific combination on the colloidal gold labeled complex to be detected when the sample to be detected moves to a specific antigen or antibody coating area to be intercepted, thereby forming a color band observable by naked eyes. The result is judged by the presence or absence of the detection line. The technology has the advantages of simple and convenient operation, rapid reaction, high sensitivity, strong specificity, suitability for any place, economy, applicability and the like.

The existing detection strip is usually installed in a detection card shell for use, the color change of a detection line and a quality control line of the detection strip is observed through an observation window positioned on the upper surface of the detection card shell, but the observation window has a certain distance with the detection line and the quality control line, and when the color of the detection line or the quality control line is lighter, misjudgment is easily caused to detection personnel with poor eyesight, and the detection result is influenced.

SUMMERY OF THE UTILITY MODEL

To prior art's weak point, the utility model aims at providing a detect card shell, this detect the enlarged subassembly in the card shell have to the detection line of detection strip and the quality control line enlarge the technological effect who observes, can observe detection line and quality control line clearly.

Based on the above purpose, the utility model provides a detection card shell, which comprises a panel, a bottom plate and an amplifying assembly; the bottom plate is used for bearing a detection strip, the panel is provided with a sample adding port for dropwise adding a sample to the detection strip and an observation window for observing detection results of a detection line and a quality control line on the detection strip, the sample adding port and the observation window are arranged at intervals along the length direction of the panel, and the panel is detachably connected with the bottom plate;

the magnifying assembly comprises a magnifying glass, and the magnifying glass is arranged in the observation window and used for magnifying and observing detection results of the detection line and the quality control line on the detection strip.

In some embodiments of the present invention, the magnifying glass is integrally disposed with the observation window.

In some embodiments of the present invention, the magnifying assembly further comprises a fixing film, the fixing film is disposed on the observation window, the magnifying lens is disposed on the fixing film, and the highest point of the magnifying lens and the panel are on the same horizontal plane.

In some embodiments of the present invention, the fixing film is a toughened film, and the material of the magnifying glass is organic glass or transparent plastic.

The utility model discloses an in some embodiments, still be provided with U-shaped dog, first dog and second dog on the bottom plate, U-shaped dog and first dog are located bottom plate length direction's both ends respectively for it is spacing to the both sides that detect strip length direction, each symmetry in both sides of bottom plate is provided with the second dog, just the one end of second dog is close to first dog is used for spacing to the both sides that detect strip width direction.

In some embodiments of the utility model, still be provided with first supporting shoe and second supporting shoe on the bottom plate, first supporting shoe and second supporting shoe all follow the length direction of bottom plate extends, the one end setting of first supporting shoe is in the notch of U-shaped dog, the one end setting of second supporting shoe is in the inslot that first dog and second dog enclose.

The utility model discloses an in some embodiments, it is protruding with coniform protruding to be provided with the layering on the internal surface of panel, the layering is protruding to be set up between observation window and the sample addition port the observation window is kept away from one side of sample addition port is provided with two coniform archs side by side.

In some embodiments of the present invention, the peripheral edge of the inner surface of the bottom plate is provided with a plurality of clamping grooves, the peripheral edge of the inner surface of the panel is provided with a plurality of clamping posts, and the clamping grooves are clamped with the clamping posts, so that the panel is connected with the bottom plate.

In some embodiments of the utility model, the detection strip includes the welt to and set gradually sample pad, gold mark pad, reaction membrane and the pad that absorbs water on the welt along sample flow direction, the one end pressure of gold mark pad cover in under the sample pad, the other end of gold mark pad and the one end overlap joint respectively of pad that absorbs water is in on the reaction membrane.

In some embodiments of the present invention, the sample addition port is funnel-shaped, and the sample addition port is located right above the sample pad, the cross-sectional shape of the observation window is inverted trapezoid, and the observation window is located right above the detection line and the quality control line;

one side of the panel corresponding to the detection line is marked with a letter T, and one side corresponding to the quality control line is marked with a letter C.

From the above, compared with the prior art, the utility model has the following advantages:

the utility model discloses a detect card shell is including enlargiing the subassembly, should enlarge the technical effect that the subassembly has the detection line and the quality control line amplification observation to the measuring strip, can observe detection line and quality control line clearly to it is unclear to lead to producing the erroneous judgement to the testing result because of the condition of discolouring of measuring strip to observe in the testing process.

Drawings

FIG. 1 is a schematic view of the overall structure of the detection card casing of the present invention;

FIG. 2 is a top view of one embodiment of a faceplate and magnification assembly of the present invention;

FIG. 3 is a top view of another embodiment of a faceplate and magnification assembly in accordance with the present invention;

fig. 4 is a side view of a panel in the present invention;

fig. 5 is a bottom view of the face plate of the present invention;

fig. 6 is a top view of the bottom plate of the present invention;

fig. 7 is a side view of the bottom plate of the present invention;

fig. 8 is a bottom view of the bottom plate of the present invention;

fig. 9 is a schematic structural diagram of the detection strip of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the present embodiment provides a detection card case, which includes a panel 1, a bottom plate 2 and an amplifying assembly 3; the bottom plate 2 is used for bearing the detection strip 4, the panel 1 is provided with a sample adding port 5 for dropwise adding a sample on the detection strip 4 and an observation window 8 for observing detection results of a detection line 6 and a quality control line 7 on the detection strip 4, the sample adding port 5 and the observation window 8 are arranged at intervals along the length direction of the panel 1, and the panel 1 is detachably connected with the bottom plate 2;

the amplifying assembly 3 comprises a magnifying glass 301, and the magnifying glass 301 is arranged in the observation window 8 and is used for magnifying and observing the detection results of the detection line 6 and the quality control line 7 on the detection strip 4.

In this embodiment, the magnifying glass 301 is disposed in the observation window 8 of the panel 1, and the magnifying glass 301 has the technical effect of magnifying and observing the detection line 6 and the quality control line 7 of the detection strip 4, so that the detection line 6 and the quality control line 7 can be clearly observed, and the detection result is prevented from being misjudged due to the unclear observation of the color change condition of the detection strip 4 in the detection process.

As shown in fig. 2, the magnifying glass 301 is integrally disposed with the observation window 8, for example, the side walls of the magnifying glass 301 and the observation window 8 can be fixedly connected by a clamping connection, a screw connection, a rotating shaft connection, and other connection methods commonly used in the art.

As shown in fig. 3, the magnifying assembly 3 further comprises a fixing film 302, the fixing film 302 is disposed on the viewing window 8, the magnifying lens 301 is disposed on the fixing film 302, and the highest point of the magnifying lens 301 is on the same horizontal plane with the panel 1. For example, a fixing film 302 can be adhered or buckled on the viewing window 8 of the panel 1, the fixing film 302 is provided with the magnifier 301, and the highest point of the magnifier 301 is on the same horizontal plane with the panel 1, i.e. the magnifier 301 is in the viewing window 8, and the viewing window 8 plays a certain role in protecting the magnifier 301, so as to prevent the magnifier 301 from being damaged.

In this embodiment, optionally, the fixing film 302 is a tempered film, and the magnifier 301 is made of organic glass or transparent plastic, so as to facilitate industrialization.

As shown in fig. 4 and 5, a bead protrusion 101 and a conical protrusion 102 are disposed on the inner surface of the panel 1, the bead protrusion 101 is disposed between the observation window 8 and the sample addition port 5, and two conical protrusions 102 are disposed in parallel on the side of the observation window 8 away from the sample addition port 5. The pressing strip protrusion 101 and the conical protrusion 102 are arranged on the base plate 2 in a matched mode and have a limiting effect on the detection strip 4, and the detection strip 4 is prevented from shaking up and down.

As shown in fig. 6, 7 and 8, the bottom plate 2 is further provided with a U-shaped stopper 201, a first stopper 202 and a second stopper 203, the U-shaped stopper 201 and the first stopper 202 are respectively located at two ends of the bottom plate 2 in the length direction and are used for limiting two sides of the detection strip 4 in the length direction, the two sides of the bottom plate 2 are symmetrically provided with the second stopper 203, and one end of the second stopper 203 is close to the first stopper 202 and is used for limiting two sides of the detection strip 4 in the width direction. The tip of the length direction of test strip 4 can stretch into in the notch of U-shaped dog 201 to play the length direction limiting displacement to test strip 4, test strip 4 sets up in the space that is enclosed by U-shaped dog 201, first dog 202 and second dog 203, and the space size that U-shaped dog 201, first dog 202 and second dog 203 enclose just in time is suitable with the size of test strip 4.

Preferably, the U-shaped stopper 201, the first stopper 202 and the second stopper 203 have the same height, so that the flatness of the whole detection card shell can be ensured.

In this embodiment, the bottom plate 2 is further provided with a first supporting block 204 and a second supporting block 205, the first supporting block 204 and the second supporting block 205 both extend along the length direction of the bottom plate 2, one end of the first supporting block 204 is disposed in the notch of the U-shaped stopper 201, and one end of the second supporting block 205 is disposed in the groove enclosed by the first stopper 202 and the second stopper 203, so as to sufficiently support the detection strip 4 and prevent the detection strip from collapsing and bending.

Preferably, the heights of the first supporting block 204 and the second supporting block 205 are lower than the height of the U-shaped stopper 201, so that the detecting strip 4 is just clamped in the space defined by the U-shaped stopper 201, the first stopper 202 and the second stopper 203, and the relative positions of the detecting strip are fixed and cannot move.

As shown in fig. 5 and 6, a plurality of card slots 206 are disposed on the outer peripheral edge of the inner surface of the bottom plate 2, a plurality of card posts 103 are disposed on the outer peripheral edge of the inner surface of the panel 1, and the card slots 206 are engaged with the card posts 103, so that the panel 1 is connected with the bottom plate 2. Eight clamping columns 103 are uniformly arranged on the periphery of the inner surface of the panel 1, eight hollow clamping grooves 206 are uniformly arranged on the periphery of the inner surface of the bottom plate 2, and the inner diameters of the clamping grooves 206 are matched with the outer diameters of the clamping columns 103 on the panel 1.

In this embodiment, when the panel 1 is buckled with the bottom plate 2 carrying the detection strip 4, the U-shaped stopper 201, the first stopper 202 and the second stopper 203 can not only position the detection strip 4 in the length and width directions, but also press and reinforce the detection strip 4 in the height direction by the aid of the first supporting block 204 and the second supporting block 205 which are arranged on the bottom plate 2 in a matching manner, so that the situation that the position of the detection strip 4 is deviated in the transportation or use process is avoided, and the use safety of the detection strip 4 is guaranteed.

As shown in fig. 9, the test strip 4 includes a backing plate 401, and a sample pad 402, a gold label pad 403, a reaction membrane 404 and a water absorption pad 405 sequentially disposed on the backing plate 401 along a sample flowing direction, wherein one end of the gold label pad 403 is pressed under the sample pad 402, and the other end of the gold label pad 403 and one end of the water absorption pad 405 are respectively overlapped on the reaction membrane 404. The welt 401 is the PVC offset plate, and sample pad 402 is non-woven fabrics, glass cellulose membrane or polyester fiber membrane, and the pad 405 that absorbs water is the filter paper that absorbs water, and reaction film 404 is nitrocellulose membrane, has set gradually detection line 6 and quality control line 7 along the flow direction of sample on the nitrocellulose membrane, and detection line 6 and quality control line 7 interval set up and all expose in observation window 8.

In the present embodiment, the preparation of the test strip 4 and the assembly of the test strip 4 with the panel 1 and the bottom plate 2 are conventional in the art, and are not described herein. For example, a reaction membrane 404, a water absorption pad 405, a gold label pad 403, and a sample pad 401 are sequentially attached to a backing 401, thereby obtaining a test strip 4. For example, the test strip 4 is loaded in a space defined by the U-shaped stopper 201, the first stopper 202 and the second stopper 203, and then is clamped with the clamping column 103 through the clamping groove 206, so that the panel 1 is connected with the bottom plate 2, the inner shell of the observation window 8 is fixedly connected with the magnifier 301, or a layer of fixing film 302 is pasted or buckled on the observation window 8, the magnifier 302 is arranged on the fixing film 302, and the assembly is completed.

In this embodiment, the sample addition port 5 is funnel-shaped, the sample addition port 5 is located right above the sample pad 402, the cross-sectional shape of the observation window 8 is inverted trapezoid, and the observation window 8 is located right above the detection line 6 and the quality control line 7; the sample addition port 5 is funnel-shaped, and the area of the horizontal section gradually decreases from the outer surface to the inner surface of the panel 1. Funnel-shaped sample addition port 5 increases the area of dropping liquid collection, and is more favorable to collecting required liquid. The cross-sectional shape of observation window 8 is for falling the trapezoidal, is convenient for observe the colour on the test strip 4 for observe test strip 4 through observation window 8 more easily.

One side of the panel 1 corresponding to the detection line 6 is marked with a letter T, and one side corresponding to the quality control line 7 is marked with a letter C, so that the detection result can be observed conveniently.

In the detection card casing of this embodiment, optionally, the thickness of panel 1 is 3.10mm, the width is 22.00mm, the length is 80.mm, the distance from the central point of observation window 8 on panel 1 to the central point of sample addition port 5 is 33.48mm, the distance from the central point of sample addition port 5 to the end close to panel 1 is 12.00mm, the length of the bottom end of observation window 8 is 15.51mm, the width of the bottom end is 3.20mm, and the diameter of the bottom end of sample addition port 5 is 2.50 mm. Optionally, the length of the bottom plate 2 is 80.00mm, the width is 22.00mm, the thickness is 3.30mm, the distance from the U-shaped stopper 201 to the first stopper 202 is 66.89mm, and the widths of the first supporting block 204 and the second supporting block 205 are both 4.0 mm.

The use method of the detection card shell of the embodiment comprises the following steps: loading the detection strip 4 in the detection card shell, dripping a sample to be detected on the sample pad 402 through the sample adding port 5, then diffusing towards the direction of the observation window 8, combining the substance to be detected in the sample with the specific monoclonal antibody marked by the colloidal gold in the gold-labeled pad 403 to form an immune complex, and diffusing towards the direction of the observation window 8 together; when the colloidal gold particles diffuse to the detection line 6 along with the sample solution, a sandwich compound is formed with the pre-coated antibody to be condensed and developed, the remaining colloidal gold-labeled specific monoclonal antibody is combined with the polyclonal antibody coated by the quality control line 7 to be condensed and developed, and the judgment result is as follows: negative: color development was only at the position of the control line 7. Positive: the positions of the quality control line 7 and the detection line 6 are colored. And (4) invalidation: no color was developed at the position of the control line 7. When the color development of the quality control line 7 or the detection line 6 is not obvious, the magnifier 301 in the observation window 8 has the technical effect of magnifying and observing the detection line 6 and the quality control line 7 of the detection strip 4, and can clearly observe the detection line 6 and the quality control line 7.

The utility model discloses a detect card shell is including enlargiing subassembly 3, should enlarge subassembly 3 and have the detection line 6 and the quality control line 7 of detecting strip 4 and enlarge the technological effect who observes, can observe detection line 6 and quality control line 7 clearly to it is unclear because of the condition of discolouring of detecting strip 4 to lead to producing the erroneous judgement to the testing result in the testing process to observe.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also combinations between technical features in the above embodiments or in different embodiments are possible, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A detection card shell is characterized by comprising a panel, a bottom plate and an amplifying assembly; the bottom plate is used for bearing a detection strip, the panel is provided with a sample adding port for dropwise adding a sample to the detection strip and an observation window for observing detection results of a detection line and a quality control line on the detection strip, the sample adding port and the observation window are arranged at intervals along the length direction of the panel, and the panel is detachably connected with the bottom plate;

2. The test card shell of claim 1, wherein the magnifying lens is integral with the viewing window.

3. The test card shell of claim 1, wherein the magnifying assembly further comprises a securing film disposed on the viewing window, the magnifying lens is disposed on the securing film, and a peak of the magnifying lens is level with the panel.

4. The detection card shell of claim 3, wherein the fixing film is a toughened film, and the magnifying glass is made of organic glass or transparent plastic.

5. The shell according to claim 1, wherein the bottom plate further comprises a U-shaped stop, a first stop and a second stop, the U-shaped stop and the first stop are respectively disposed at two ends of the bottom plate in the length direction for limiting two sides of the detection strip in the length direction, the second stop is symmetrically disposed at two sides of the bottom plate, and one end of the second stop is close to the first stop for limiting two sides of the detection strip in the width direction.

6. The shell according to claim 5, wherein the bottom plate further comprises a first support block and a second support block, the first support block and the second support block both extend along the length direction of the bottom plate, one end of the first support block is disposed in the notch of the U-shaped stop block, and one end of the second support block is disposed in the groove surrounded by the first stop block and the second stop block.

7. The test card housing of claim 1, wherein a bead protrusion and a conical protrusion are disposed on the inner surface of the faceplate, the bead protrusion is disposed between the observation window and the sample addition port, and two conical protrusions are disposed side by side on a side of the observation window away from the sample addition port.

8. The shell according to claim 1, wherein a plurality of slots are formed on the outer peripheral edge of the inner surface of the bottom plate, and a plurality of posts are formed on the outer peripheral edge of the inner surface of the faceplate, and the slots are engaged with the posts so that the faceplate is connected to the bottom plate.

9. The test card case of claim 1, wherein the test strip comprises a backing plate, and a sample pad, a gold label pad, a reaction membrane and a water absorption pad sequentially disposed on the backing plate along a sample flowing direction, wherein one end of the gold label pad is pressed under the sample pad, and the other end of the gold label pad and one end of the water absorption pad are respectively lapped on the reaction membrane.

10. The test card housing of claim 9, wherein the sample loading port is funnel-shaped and is located directly above the sample pad, the cross-sectional shape of the observation window is inverted trapezoid, and the observation window is located directly above the test line and the quality control line;