CN216284948U

CN216284948U - Sampling and detecting device

Info

Publication number: CN216284948U
Application number: CN202122099571.3U
Authority: CN
Inventors: 伍飞龙; 侯娇娇; 范文丽
Original assignee: Guangzhou Langkun Biotechnology Co ltd
Current assignee: Guangzhou Langkun Biotechnology Co ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-04-12
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses a sampling and detecting device, relating to the technical field of medical instruments, comprising: a body having a first chamber; the pipe cap is matched with the upper end of the body and is provided with a through hole; the sampling device comprises a sampling pipe, the upper end of the sampling pipe is matched with the through hole, and the lower end of the sampling pipe can be inserted into the first cavity; and the detection device comprises a test paper clamping groove, the test paper clamping groove is arranged in the body, and the liquid in the first cavity can flow into the test paper clamping groove. After the sample and the diluent are mixed uniformly, the sample diluent can directly contact and react with the test strip, so that the influence of the external environment on the detection result is avoided, and the accuracy of the detection result is improved. The sampling and detecting device of the embodiment of the utility model realizes the functions of collecting and detecting the sample, simplifies the detection operation of the sample and improves the experience degree of sample detection.

Description

Sampling and detecting device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a sampling and detecting device.

Background

Routine detection needs hospital's professional to carry out sample sampling and detection, and sample processing complex operation also need professional sampling equipment to some detection projects that need the ration, receives external factor influence easily among the sample testing process for the accuracy of testing result reduces.

For most conventional detection, the existing immune test paper has simple detection operation and higher accuracy, and the result can be completely and independently detected and judged by a detected person. How to avoid loaded down with trivial details preliminary treatment process of measuring and simplify the equipment that needs the quantitative determination project and avoid the testing process unnecessary contact to cause detection error and result skew, improve the experience degree of convenient operation simultaneously, be the problem that needs to solve urgently.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a sampling and detecting device which can realize sampling and detection of a liquid sample, meet quantitative advanced detection requirements of partial items and ensure the accuracy of a detection result.

The sampling and detecting device of the embodiment of the utility model comprises: a body having a first chamber; the pipe cap is matched with the upper end of the body and is provided with a through hole; the sampling device comprises a sampling pipe, the upper end of the sampling pipe is matched with the through hole, and the lower end of the sampling pipe can be inserted into the first cavity; and the detection device comprises a test paper clamping groove, the test paper clamping groove is arranged in the body, and the liquid in the first cavity can flow into the test paper clamping groove.

Further, the outer wall of the body is provided with a step, and the bottom of the pipe cap is abutted to the step.

Further, a partition layer is arranged in the first cavity and provided with a first sampling hole, and the first sampling hole is matched with the sampling pipe.

Further, the partition layer is provided with a conical curved surface, and the axis of the first sampling hole is coincident with the axis of the conical curved surface.

Further, the body has a second cavity, the second cavity is arranged on one side of the first cavity, the second cavity is matched with the test paper clamping groove, the first cavity is communicated with the second cavity through a receiving channel, the detection device further comprises a blocking block, the blocking block is arranged at the lower end of the test paper clamping groove, and the blocking block is used for blocking the receiving channel.

Further, a sealing sheet is arranged below the partition layer, the sealing sheet is provided with a side wall, the side wall is matched with the inner wall surface of the first cavity, the sealing sheet can slide along the first cavity, the sealing sheet is provided with a second sampling hole, the second sampling hole is matched with the tail end of the sampling pipe, and the height of the side wall is larger than the diameter of the receiving channel.

Further, sampling device still includes the sealing washer, the sealing washer set up in on the sampling pipe, the sealing washer through with cut off the layer extrusion in order to realize sealed.

Further, the pipe wall of sampling pipe is provided with the arch, be provided with on the pore wall of through-hole with protruding assorted spacing groove, the arch can slide in the spacing groove.

Further, the sampling device also comprises a sealing cover, and the sealing cover is arranged on the top end face of the sampling pipe.

Further, the lower extreme of sampling pipe is provided with the pipe hole stopper, the external diameter of pipe hole stopper is greater than the diameter of second sampling hole.

The sampling and detecting device of the embodiment of the utility model at least has the following beneficial effects: when sampling and detecting of liquid sample, utilize sampling pipe to sample earlier, the sample that will obtain afterwards and the diluent mixing in the first cavity, make the sample diluent after the mixing contact with the test paper strip in the test paper draw-in groove again, wait to react one end time after, the operator just can be followed and explained the testing result in the test paper strip. After the sample and the diluent are mixed uniformly, the sample diluent can directly contact and react with the test strip, so that the influence of the external environment on the detection result is avoided, and the accuracy of the detection result is improved. The sampling and detecting device provided by the embodiment of the utility model realizes the functions of sample collection and detection, can meet the quantitative detection requirements of partial items, simplifies the detection operation of the sample, and improves the experience degree of sample detection.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the following figures and examples, in which:

FIG. 1 is a schematic structural diagram of a sampling and detecting device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another view angle of the sampling and detecting device according to the embodiment of the present invention;

FIG. 3 is a schematic external view of a sampling and detecting device according to an embodiment of the present invention;

fig. 4 is a schematic top view of a sampling and detecting device according to an embodiment of the present invention.

Reference numerals:

body 11, pipe cap 12, partition layer 15, sealing piece 16, spacing groove 121, sampling pipe 131, sealed lid 132, test paper draw-in groove 141, shutoff piece 142, inlet channel 143, first cavity 100, second cavity 200, through-hole 300, first sampling hole 400, second sampling hole 500, test paper groove 600, exhaust hole 700, step 800, receiving channel 900, protruding 1311.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The sampling and detecting device comprises a body 11, a pipe cap 12, a sampling device and a detecting device.

Specifically, referring to fig. 1-3, the body 11 has a first chamber 100; the cap 12 is matched with the upper end of the body 11, and the cap 12 is provided with a through hole 300; the sampling device comprises a sampling tube 131, the upper end of the sampling tube 131 is matched with the through hole 300, and the lower end of the sampling tube 131 can be inserted into the first cavity 100; the detection device comprises a test paper slot 141, the test paper slot 141 is disposed on the body 11, and the liquid in the first chamber 100 can flow into the test paper slot 141.

In one embodiment, the sampling tube 131 comprises a transparent cylindrical barrel and a capillary tube embedded in the barrel, wherein the capillary tube has a capillary action on the sample liquid, so that the sampling operation can be realized. During sampling, a user can observe the sampling condition of the capillary suction pipe through the transparent cylinder body.

In other embodiments, the sampling tube 131 has the same structural function as the quantitative capillary pipette, enabling quantitative sampling. Since quantitative capillary pipettes are prior art in the field, they are not described in detail here.

When sampling and detecting a liquid sample, the sampling tube 131 is firstly utilized for sampling, then the obtained sample is uniformly mixed with the diluent in the first cavity 100, the uniformly mixed sample diluent is contacted with the test strip sample pad in the test strip clamping groove 141, and after one end of reaction time, an operator can judge and read a detection result from the test strip. After the sample and the diluent are mixed uniformly, the sample diluent can directly contact and react with the test strip, so that the influence of the external environment on the detection result is avoided, and the accuracy of the detection result is improved. The sampling and detecting device of the embodiment of the utility model realizes the functions of collecting and detecting the sample, simplifies the detection operation of the sample and improves the experience degree of sample detection.

In this embodiment, the body 11 is cylindrical to optimize the space utilization of the sampling and detecting device, so that the product is portable. It should be understood that the sampling and detecting device of the embodiment of the present invention includes, but is not limited to, a cylinder, and the shape thereof can be set according to the function and the detecting requirement, so as to meet the using requirement.

In one embodiment, the test strip slot 141 is a test slot fixed in the body 11, and the test device further includes a test strip. During detection, after the sample and the diluent are mixed uniformly, the test strip is stretched into the test strip clamping groove 141, and after a period of reaction, the test strip is taken out and a corresponding detection result is read from the test strip.

In other embodiments, the test strip slot 141 is removably mounted to the body 11. When the test strip is not detected, the tail end of the test strip clamping groove 141 is located at the upper end of the liquid level of the sample diluent, so that the test strip clamping groove 141 is prevented from being contacted with the sample diluent to react. During detection, after the sample and the diluent are mixed uniformly, the test paper slot 141 is pressed down, and the test paper in the test paper slot 141 contacts and reacts with the sample diluent.

In one embodiment, the outer wall of the body 11 has a step 800, and the bottom of the cap 12 abuts against the step 800, as shown in fig. 2 and 3. The bottom of cap 12 offsets with step 800 face, can restrict cap 12 and install back on the body 11 and move along body 11 length direction to prevent that the misoperation from resulting in the test paper draw-in groove 141 to be pushed down and lead to the test paper to contact with the sample diluent, thereby can effectively avoid the waste of test paper.

In one embodiment, a blocking layer 15 is disposed in the first chamber 100, the blocking layer 15 having a first sampling hole 400, the first sampling hole 400 mating with the sampling tube 131. One end of the sampling tube 131 is matched with the through hole 300 of the tube cap 12, and the other end of the sampling tube 131 passes through the first sampling hole 400 and extends into the first chamber 100. The setting of partition layer 15 has blocked the contact of the diluent in first cavity 100 with the external world to avoid diluent or sample diluent to be contaminated by external environment and influence the condition of sample testing result, guaranteed the accuracy of testing result.

In one of the embodiments, the partition layer 15 has a conical surface, and the axis of the first sampling hole 400 coincides with the axis of the conical surface. The section area of the upper end of the conical curved surface is larger than that of the lower end of the conical curved surface, and the conical curved surface is similar to a funnel shape which is placed in a right-handed mode. The axis of first sampling hole 400 coincides with the axis of conical surface for conical surface can guide when sampling pipe 131 stretches into first cavity 100, does benefit to the blind plug operation that realizes sampling pipe 131, improves the operation convenience of this embodiment.

In some embodiments, the body 11 has a second chamber 200, the second chamber 200 is mated with the test strip slot 141, and the first chamber 100 is in communication with the second chamber 200 through the receiving channel 900. The detection device further comprises a blocking block 142, the blocking block 142 is arranged at the lower end of the test paper clamping groove 141, and the blocking block 142 is used for blocking the receiving channel 900. The second chamber 200 is disposed outside the first chamber 100, and the test strip slot 141 can slide up and down along the second chamber 200. Wherein, the blocking block 142 extrudes each other with the second chamber 200, and the blocking block 142 can slide along the second chamber 200 when receiving certain external force. When not detecting, the blocking block 142 is just opposite to the liquid outlet of the receiving channel 900 to block the receiving channel 900, so that the contact between the sample diluent and the test strip can be effectively prevented. Wherein, an exhaust hole 700 is further provided below the blocking block 142. When a sample is detected, the test strip clamping groove 141 is pressed downwards, so that the blocking block 142 deviates from the liquid outlet of the receiving channel 900, and the sample diluent in the receiving channel 900 flows to the test strip clamping groove 141 and contacts and reacts with the test strip in the test strip clamping groove 141.

In this embodiment, the first surface of the test strip slot 141 has a strip-shaped test strip slot 600, and the test strip slot 600 is used for placing a test strip (not shown in the figure). In this embodiment, when the test strip slot 141 is mounted in the second chamber 200, the test strip slot 141 is opened toward the first chamber 100. The test strip is tightly attached to the outer wall surface of the first chamber 100, and the test strip slot 141 is made of a transparent material, which is beneficial to displaying the test result of the test strip. When the sample detection is not performed, the blocking block 142 blocks and seals the liquid outlet of the receiving channel 900; when the sample is detected, the blocking block 142 is pushed down by the test paper clamping groove 141, so that the sample pad of the test paper strip is in direct contact with the sample in the receiving channel 900, and the situation that the sample to be detected is small in volume, cannot flow out independently and reacts with the test paper strip in a contact manner can be avoided.

In one embodiment, the second surface of the test strip slot 141 is in close contact with the outer wall of the first chamber 100, and the opening of the test strip slot 141, i.e., the test strip slot 600, is installed in a direction away from the first chamber 100. The first surface and the second surface are two mutually opposite surfaces in the test paper slot 141. The liquid inlet channel 143 is arranged between the first surface and the second surface, when the liquid inlet channel 143 is communicated with the receiving channel 900, the sample diluent can flow into the test paper slot 141 from the receiving channel 900 and can contact and react with the test paper to realize sample detection.

It should be noted that, the number of the test paper slots 141 and the number of the receiving channels 900 may be set correspondingly according to the requirement of the detection item, so as to achieve the purpose of joint detection of a plurality of items. The volume of the receiving channel 900 is the sample volume required for a single test item; the volume of different receiving channels 900 can be set according to different detection item requirements to satisfy the detection requirements of different detection items on the sample volume.

In one of the embodiments, a sealing sheet 16 is disposed below the partition layer 15, the sealing sheet 16 has a side wall, the side wall matches with the inner wall surface of the first chamber 100, the sealing sheet 16 can slide along the first chamber 100, the sealing sheet 16 has a second sampling hole 500, the second sampling hole 500 matches with the end of the sampling tube 131, and the height of the side wall is larger than the diameter of the receiving channel 900. The sealing sheet 16 has a hollow structure, a side wall of the sealing sheet 16 is disposed downward from a top surface of the sealing sheet 16, and the sealing sheet 16 divides the first chamber 100 into an upper portion and a lower portion. The sealing plate 16 has a mesh-like structure on the top surface, which connects the upper and lower portions of the first chamber 100, and allows the sample diluent to flow between the upper and lower portions of the first chamber 100. The diameter of the end of the sampling tube 131 is slightly smaller than the diameter of the middle section of the sampling tube 131, and the diameter of the second sampling hole 500 matches the diameter of the end of the sampling tube 131. By the structural design, the sealing sheet 16 can be pushed down after the sampling tube 131 extends into the first cavity 100, so that the side wall of the sealing sheet 16 blocks the receiving channel 900. The liquid receiving channel 900 is able to form a fixed volume as the sealing disc 16 side wall and the blocking piece 142 block both ends of the receiving channel 900. During detection, the blocking block 142 is continuously extruded downwards, so that the blocking block 142 is far away from the liquid outlet of the receiving channel 900, and the sample diluent in the receiving channel 900 can contact and react with the sample pad of the test strip, thereby realizing quantitative detection of the sample diluent.

Wherein, sampling pipe 131 establishes the sticker for the through-hole upper end, need prevent that the foreign matter from blockking up when not carrying out sampling operation, and earlier uncover the sticker before the sampling operation, the lower extreme is provided with the pipe hole stopper, and the external diameter of pipe hole stopper is greater than the diameter of second sampling hole 500. When the detection is not performed, the pipe hole plug can prevent diluent from entering the sampling pipe 13; when the operator takes out the sampling tube for sampling, the sampling tube 131 drives the sealing sheet 16 to move upwards, and the sampling tube 131 and the tube hole plug fall off under the blocking of the partition layer 15. At this time, the sampling tube 131 is opened, and the sample liquid can be collected.

In this embodiment, the sampling device further comprises a sealing ring disposed on the sampling tube 131, and the sealing ring is extruded with the partition layer 15 to realize sealing. Sampling pipe 131 stretches into the in-process of first cavity 100 from first sampling hole 400, and the sealing washer extrudees and realizes sealed with partition layer 15, can prevent effectively that the diluent in the first cavity 100 from leaking backward.

In one embodiment, referring to fig. 1 and 4, the wall of the sampling tube 131 is provided with a protrusion 1311, the wall of the through hole 300 is provided with a limiting groove 121 matched with the protrusion 1311, and the protrusion 1311 can slide in the limiting groove 121. Wherein the diameter of the circumscribed circle of the protrusion 1311 is larger than that of the through-hole 300; when the protrusion 1311 and the stopper groove 121 do not coincide, the sampling tube 131 can rotate about its axis. When the protrusion 1311 coincides with the limiting groove 121, the sampling tube 131 can move downwards along the through hole 300; when the protrusion 1311 is misaligned with the limiting groove 121, the lower end of the protrusion 1311 is engaged with the upper end surface of the cap 12, and the sampling tube 131 cannot move downward.

In this embodiment, the sampling device further comprises a sealing cap 132, and the sealing cap 132 is disposed on the top end surface of the sampling tube 131. It should be noted that the sampling tube 131 has a thin lumen in the center, which extends through the head and tail ends of the sampling tube 131, and the sampling tube 131 realizes sampling of the sample by virtue of the capillary action of the lumen.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Claims

1. A sampling and detection device, comprising:

a body having a first chamber;

the pipe cap is matched with the upper end of the body and is provided with a through hole;

the sampling device comprises a sampling pipe, the upper end of the sampling pipe is matched with the through hole, and the lower end of the sampling pipe can be inserted into the first cavity; and

the detection device comprises a test paper clamping groove, the test paper clamping groove is arranged in the body, and liquid in the first cavity can flow into the test paper clamping groove.

2. The sampling and detection device according to claim 1, wherein the outer wall of the body has a step against which the bottom of the cap abuts.

3. The sampling and detection device of claim 1 wherein a blocking layer is disposed within the first chamber, the blocking layer having a first sampling aperture that mates with the sampling tube.

4. The sampling and detection device of claim 3 wherein the partition has a conical surface, and the axis of the first sampling aperture coincides with the axis of the conical surface.

5. The sampling and testing device according to claim 3 or 4, wherein said body has a second cavity, said second cavity is disposed at one side of said first cavity, said second cavity is matched with said test paper slot, said first cavity is communicated with said second cavity through a receiving channel, said testing device further comprises a blocking block, said blocking block is disposed at a lower end of said test paper slot, said blocking block is used for blocking said receiving channel.

6. The sampling and detection device according to claim 5, wherein a sealing sheet is arranged below the partition layer, the sealing sheet has a side wall, the side wall is matched with the inner wall surface of the first cavity, the sealing sheet can slide along the first cavity, the sealing sheet has a second sampling hole, the second sampling hole is matched with the tail end of the sampling pipe, and the height of the side wall is larger than the diameter of the receiving channel.

7. The sampling and testing device of claim 6, further comprising a sealing ring disposed on said sampling tube, said sealing ring sealing by compressing against said barrier layer.

8. The sampling and detection device according to claim 1, wherein a protrusion is disposed on a wall of the sampling tube, a limit groove matched with the protrusion is disposed on a wall of the through hole, and the protrusion can slide in the limit groove.

9. The sampling and testing device of claim 1, further comprising a sealing cap disposed on a top end face of said sampling tube.

10. The sampling and detection device of claim 6 wherein the lower end of the sampling tube is provided with a tube bore plug having an outer diameter greater than the diameter of the second sampling aperture.