CN210719904U

CN210719904U - Sample suspension preparation device

Info

Publication number: CN210719904U
Application number: CN201921273584.4U
Authority: CN
Inventors: 丁建文
Original assignee: Hunan Ave Medical Technology Co ltd
Current assignee: Hunan Ave Medical Technology Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-06-09
Anticipated expiration: 2029-08-07

Abstract

The utility model provides a sample suspension preparation facilities. The sample suspension preparation device comprises a dilution tube, a collection tube and a connecting tube cover. The dilution pipe is open at one end and is provided with a dilution cavity. The collecting pipe is open at one end and is provided with a collecting cavity. The connecting pipe cover is provided with a cover body, a sampling piece and a filtering piece, wherein the sampling piece and the filtering piece are arranged on the cover body. A suspension flow channel is formed on the cover body, and the dilution pipe and the collecting pipe are respectively detachably arranged on two opposite sides of the cover body and are communicated through the suspension flow channel. Wherein, the sampling piece is located the dilution chamber or collects the intracavity, and filter the piece and be used for realizing filtering between dilution chamber and collection chamber. The utility model provides a sample suspension preparation device makes the preparation of sample suspension simple and easy, convenient operation.

Description

Sample suspension preparation device

Technical Field

The utility model relates to a check out test set technical field especially relates to a sample suspension preparation facilities.

Background

Stool tests are one of three clinical routine tests. Excrement is collected, diluted, stirred and filtered to prepare excrement suspension, and then the excrement suspension is placed on an automatic detector for detection and observation. Because the automatic instrument and equipment for preparing the excrement suspension are expensive and have low popularization degree in the primary medical institution, the personnel of the primary medical institution need to use manual work to prepare the excrement suspension. The preparation process is complex and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

In view of this, it is necessary to provide a sample suspension preparation device which is convenient to operate, in order to solve the problem that the conventional fecal suspension preparation operation is inconvenient.

A sample suspension preparation device, comprising:

the dilution pipe is provided with an opening at one end and a dilution cavity;

the collecting pipe is provided with a collecting cavity; and

the connecting pipe cover is provided with a cover body, a sampling piece and a filtering piece, the sampling piece and the filtering piece are arranged on the cover body, a suspension flow passage is formed on the cover body, and the diluting pipe and the collecting pipe are respectively detachably arranged on two opposite sides of the cover body and are communicated through the suspension flow passage;

wherein, the sampling piece is located dilute the chamber or collect the intracavity, filter and be used for between dilute the chamber with collect the chamber and realize filtering.

In one embodiment, the dilution chamber accommodates a dilution liquid for dilution, and the sampling member is accommodated in the collection chamber.

In one embodiment, the device further comprises a sealing member, wherein the sealing member is arranged at an opening at one end of the suspension flow channel far away from the sampling member.

In one embodiment, the sealing member is a sealing cap or a sealing membrane.

In one embodiment, the cover includes a first connection portion and a second connection portion, the dilution pipe is installed in cooperation with either one of the first connection portion or the second connection portion, and the collection pipe is installed in cooperation with the other one of the first connection portion or the second connection portion.

In one embodiment, the first connection portion and the second connection portion are both of an internal thread structure, and the outer walls of the pipe orifice ends of the collecting pipe and the dilution pipe are both provided with an external thread structure.

In one embodiment, the cover further includes a limiting portion, and the limiting portion abuts against an inner wall of the dilution pipe or the collection pipe.

In one embodiment, the cover further includes a main body seat, and an overflow portion and a flow channel portion disposed on the main body seat, the flow channel portion has a suspension flow channel, the overflow portion and the flow channel portion are disposed at an interval, and surround the outer wall of the overflow portion and the main body seat to form an overflow trough, the filter member includes a filter screen, and the filter screen covers a notch of the overflow trough.

In one embodiment, the filtering element further comprises a filtering net cylinder, the filtering net cylinder and the filtering net are located on the same side of the cover body and enclose a filtering cavity communicated with the suspension flow passage with the filtering net, and the diameter of a mesh of the filtering net cylinder is larger than that of the mesh of the filtering net.

In one embodiment, the filter screen cylinder has a large end and a small end, the outer diameter of the filter screen cylinder gradually decreases along the direction from the large end to the small end, the large end is connected with the overflow part, and the small end is connected with the sampling piece.

In the above sample suspension preparation device, after the sampling member collects the sample, the cover body is connected to any one of the dilution tube or the collection tube, so that the sampling member can be accommodated in the corresponding tube body which is mounted and connected to the cover body. The pipe body for accommodating the sampling piece is internally provided with diluent, and the sample is contacted with the diluent and can form sample suspension after shaking. Further, the cover body is connected with the other one of the dilution tube or the collection tube, the tube body for placing the sample piece is inverted, and the sample suspension flows through the suspension flow channel and enters the other one of the dilution tube or the collection tube for collection under the filtering action of the filter piece. By arranging the sample suspension preparation device, the preparation of the sample suspension is simple and easy to implement and the operation is convenient.

Drawings

Fig. 1 is a schematic view of an overall structure of a sample suspension preparation apparatus according to an embodiment of the present invention;

FIG. 2 is an exploded view of the sample suspension preparation device shown in FIG. 1;

FIG. 3 is a schematic view I of the sample suspension preparation device shown in FIG. 1 in a use state;

FIG. 4 is a schematic diagram II of the sample suspension preparation device shown in FIG. 1 during use;

FIG. 5 is a schematic diagram III of the sample suspension preparation device shown in FIG. 1 during use;

FIG. 6 is a fourth schematic diagram of the sample suspension preparation device shown in FIG. 1 during use;

FIG. 7 is a schematic diagram of the sample suspension preparation device shown in FIG. 1 in a use configuration;

FIG. 8 is a sixth schematic diagram of the sample suspension preparation device of FIG. 1 during use;

FIG. 9 is a seventh schematic diagram of the sample suspension preparation device shown in FIG. 1 during use;

FIG. 10 is a schematic view eight of the sample suspension preparation device shown in FIG. 1, in use.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the present invention provides a sample suspension preparing apparatus 100 for preparing a sample suspension to inspect and observe a sample. In particular, the sample may be feces. The sample suspension preparation device 100 includes a dilution tube 110, a connecting tube cap 120, and a collection tube 130.

The dilution pipe 110 has a hollow structure with one end open, and has a dilution chamber 111. Dilution tube 110 may be used to prepare a sample suspension or to collect a sample suspension.

The collection tube 130 is a hollow structure with one end open, and has a collection chamber 131. If the dilution tube 110 is used to prepare a sample suspension, the collection tube 130 is used to collect the sample suspension; if the dilution tube 110 is used to collect a sample suspension, the collection tube 130 is used to prepare the sample suspension.

The connecting tube cover 120 has a cover body 121, a sampling member 122, and a filter member 123. A suspension flow passage 1211 is formed in the cap body 121. Specifically, the cover 121 includes a main body seat 1212 and a flow channel portion 1218. The flow channel portion 1218 is disposed on the main body 1212, and a suspension flow channel 1211 is formed on the flow channel portion 1218. Specifically, the main body base 1212 has an avoiding hole 1217 on a surface thereof, the flow channel portion 1218 is inserted through the avoiding hole 1217 of the main body base 1212 and is held in the avoiding hole 1217, and opposite ends of the flow channel portion 1218 extend out of the avoiding hole 1217.

A suspension flow channel 1211 is defined on one side surface of the flow channel portion 1218. Specifically, the flow channel portion 1218 may be a sleeve. The interior surface of the sleeve is surrounded by a suspension flow passage 1211. Therefore, the sample suspension can only flow into or out of the openings at the two ends of the sleeve, so that the sample suspension can be conveniently drained.

The dilution tube 110 and the collection tube 130 are detachably mounted on opposite sides of the cap 121, respectively, and are communicated with each other through a suspension flow passage 1211.

Thus, the sample suspension can be switched between the dilution chamber 111 and the collection chamber 131.

Specifically, the cover 121 further includes a first connection portion 1213 and a second connection portion 1214. The first connecting portion 1213 and the second connecting portion 1214 are disposed on opposite sides of the main body base 1212. The dilution tube 110 is fitted to one of the first connection portion 1213 and the second connection portion 1214, and the collection tube 130 is fitted to the other of the first connection portion 1213 and the second connection portion 1214.

Specifically, the first connecting portion 1213 and the second connecting portion 1214 can be a threaded structure, a connecting hole, a positioning post or other structures, so as to ensure that the first connecting portion 1213 and the second connecting portion 1214 have the same structure and size. In an embodiment, the first connection portion 1213 and the second connection portion 1214 are both of an internal thread structure, the outer walls of the pipe ends of the dilution pipe 110 and the collection pipe 130 are both provided with an external thread structure, and the structures and the dimensions of the external thread structures on the dilution pipe 110 and the collection pipe 130 are identical. The external thread structure of the dilution pipe 110 may be engaged with any one of the first connection portion 1213 and the second connection portion 1214, and the external thread structure of the collection pipe 130 may be engaged with the other one of the first connection portion 1213 and the second connection portion 1214.

Due to the arrangement of the thread structure, the connection mode of the cover body 121, the dilution tube 110 and the collection tube 130 is simple and easy, and the sample suspension is prevented from leaking from the gap between the cover body 121 and the dilution tube 110 and the collection tube 130 in the sample suspension preparation and collection process. Furthermore, since the first connection portion 1213 and the second connection portion 1214 are provided in the same manner, and the external threads provided at the nozzle ends of the dilution pipe 110 and the collection pipe 130 are also provided in the same manner, the dilution pipe 110 and the collection pipe 130 can be fitted and fixed to the lid body 121 even if the positions of the dilution pipe 110 and the collection pipe 130 are changed, thereby satisfying a wider range of mounting requirements.

In other embodiments, the first connection portion 1213 and the second connection portion 1214 may be externally threaded, and the pipe ends of the dilution pipe 110 and the collection pipe 130 are both internally threaded.

Specifically, the cover 121 further includes a mounting ring, the main body seat 1212 is a plate-shaped structure, the mounting ring is sleeved on the main body seat 1212 and protrudes from two opposite sides of the main body seat 1212, and an outer periphery of the main body seat 1212 abuts against an inner wall of the mounting ring 1213. The inner walls of the mounting collar on opposite sides of the main body housing 1212 form a first connection portion 1213 and a second connection portion 1214. Specifically, the flow channel portion 1218 is disposed in the mounting collar, and a side surface of the flow channel portion 1218 facing away from the mounting collar is surrounded to form a suspension flow channel 1211.

Since the dilution tube 110 and the collection tube 130 are both tubular and the mounting ring is sleeve-shaped, when the first connection portion 1213 and the second connection portion 1214 are mounted in cooperation with the dilution tube 110 and the collection tube 130, the first connection portion 1213 and the second connection portion 1214 can be fixed with the dilution tube 110 and the collection tube 130 from the circumferential direction of the dilution tube 110 and the collection tube 130, so that the dilution tube 110 and the collection tube 130 are more firmly mounted with the cover 121.

In addition, the cover 121 further includes a limiting portion 1215 and an overflow portion 1216 disposed on the main body housing 1212. The stopper 1215 and the overflow 1216 protrude from the main body 1212 and are both located within the mounting collar 1213. From the outer edge to the middle of the main body base 1212, there are a first connection portion 1213 (or a second connection portion 1214), a second limiting portion 1215, an overflow portion 1216 and a flow channel portion 1218. And the two adjacent parts are arranged at intervals.

The limiting part 1215 abuts against the inner wall of the dilution pipe 110 or the collection pipe 130. Specifically, the limiting part 1215 abuts against a side of the dilution tube 110 or the collection tube 130 facing away from the first connection part 1213 and the second connection part 1214.

Specifically, the limiting part 1215 abuts against the inner wall of the dilution pipe 110 or the collection pipe 130. When the limiting part 1215 abuts against the inner wall of the dilution tube 110, the mounting ring 1213 and the limiting part 1215 cooperate to fix the cover 121 and the dilution tube 110 more firmly. When the limiting part 1215 abuts against the inner wall of the collecting tube 130, the mounting ring sheath 1213 and the limiting part 1215 work together, so that the cover 121 and the collecting tube 130 are more firmly fixed, and the sealing effect is better. In this embodiment, there may be two limiting parts 1215, and when the dilution tube 110 and the collection tube 130 are connected to the cover 121, one of the limiting parts 1215 abuts against the dilution tube 110, and the other limiting part 1215 abuts against the collection tube 130. So that the installation between the dilution tube 110 and the collection tube 130 and the connection tube cap 120 is more secure.

Specifically, the stopper 1215 may be rod-shaped, plate-shaped, or ring-shaped. In one embodiment, the limiting portion 1215 is annular, so that the limiting portion 1215 can limit the dilution tube 110 and the collection tube 130 from the circumferential direction of the dilution tube 110 and the collection tube 130, so that the dilution tube 110 and the collection tube 130 can be more firmly mounted with the first connecting portion 1213 and the second connecting portion 1214.

In one embodiment, dilution tube 110, collection tube 130, and cap 121 are all axisymmetrically distributed about the axis of dilution tube 110 or collection tube 130.

Therefore, when the cover 121 is mounted on the dilution pipe 110, the force of the cover 121 on the dilution pipe 110 can be uniformly distributed on the dilution pipe 110; similarly, the force of the cover 121 on the collection tube 130 can be uniformly distributed on the collection tube 130, so that the dilution tube 110 and the collection tube 130 are more firmly mounted on the cover 121, and the dilution tube 110 and the collection tube 130 are prevented from falling off the cover 121.

The sampling member 122 is attached to the cap 121 and is used to collect a sample. Specifically, the sampling member 122 includes a sampling column 1221 and a sampling head 1222 mounted at one end of the sampling column 1221. The end of the sampling column 1221 remote from the sampling head 1222 is attached to the cap 121. The sampling head 1222 is used for sampling.

The sampling member 122 is located in the dilution chamber 111 or the collection chamber 131.

In one embodiment, the diluting chamber 111 contains a diluting fluid for dilution, and the sampling member 122 is contained in the collection chamber 131.

Because, the sampling member 122 is prevented from being damaged by being soaked in the diluent for a long time when not in use. In addition, the original state of the sampling piece 122 can be kept dry, and an operator can conveniently operate the sampling piece 122 to sample.

It should be noted that, in other embodiments, the collection cavity 131 may also contain a diluent for dilution, and the sampling element 122 is contained in the dilution cavity 111, so that the diluent and the sampling element 122 can be separated only before being used. Alternatively, the diluent may not be contained in the dilution chamber 111 or the collection chamber 131, and when the sample 122 is sampled and a sample suspension needs to be prepared, the diluent may be injected into the dilution chamber 111 or the collection chamber 131.

The filter member 123 is attached to the cover 121. Specifically, the filter element 123 and the sampling element 122 may be mounted on opposite sides of the body housing 1212. Alternatively, the filter 123 and the sampling member 122 can be mounted on the same side of the body housing 1212. The dilution tube 110 and the collection tube 130 are detachably mounted on opposite sides of the cap 121, respectively, and are communicated with each other through a suspension flow passage 1211.

The filter member 123 is used to perform filtering between the dilution chamber 111 and the collection chamber 131.

Compared with the traditional sample suspension preparation, the preparation of the sample suspension can be performed only manually by the primary medical institution due to the expensive price of the automated instrument and equipment. In the process of manual preparation, a sample needs to be manually collected, stirred, prepared into suspension, filtered and collected, and a plurality of different containers need to be replaced in the process of manufacturing, so that the preparation method has complex process and inconvenient operation. In the present application, after the sample 122 collects a sample, the sample 122 to which the sample is attached is accommodated in either the dilution tube 110 or the collection tube 130 in which a diluent is accommodated, and the cap 121 seals the nozzle of either the dilution tube 110 or the collection tube 130.

The sample suspension preparation device also includes a seal 140. Specifically, in this embodiment, the sealing member 140 is mounted in the suspension flow passage 1211 opening at an end remote from the sampling member 122.

After the sample piece 122 is contacted with the diluent, a sample suspension may be prepared by shaking the dilution tube 110 or the collection tube 130 containing the diluent. The sealing member 140 covers the suspension flow passage 1211 and is open at an end thereof away from the sampling member 122, so as to prevent the diluent from splashing out to pollute the operating environment during the shaking process.

Further, the sealing member 140 may be a sealing cover, the sealing cover includes a first step and a second step disposed on the first step, the second step extends into the suspension flow passage 1211 and is clamped with the inner wall of the suspension flow passage 1211, and the first step seals the opening of the suspension flow passage 1211.

Specifically, the second step is abutted against the inner wall of the sleeve, and the first step is arranged on an opening at one end of the sleeve in a covering mode. The mode can facilitate the installation of the sealing element 140, and can increase the contact area between the sealing element 140 and the sleeve, so that the friction force between the sealing element 140 and the sleeve is larger, the stability of the installation between the sealing element 140 and the sleeve can be effectively improved, and the sealing effect between the sealing element 140 and the sleeve is better.

Specifically, the sealing member 140 may also be a sealing film having an intermediate sealing performance, and the thickness of the sealing film is relatively small, so that when the suspension flow passage 1211 does not need to be sealed, the sealing film is directly torn off, and the communication between the dilution chamber 111 and the collection chamber 131 can be realized.

Referring to FIGS. 3-10, a sample suspension preparation process will be described by way of example. Before preparing the sample suspension, the sampling member 122 is accommodated in the collection chamber 131, and the diluent is accommodated in the dilution chamber 111, so as to separate the sampling member 122 from the diluent. When it is desired to prepare a sample suspension, the collection tube 130 is detached from the connection tube cap 120, and then the connection tube cap 120 is separated from the dilution tube 110. Furthermore, after the sampling member 122 samples, the sampling member 122 extends into the dilution chamber 111, the connection tube cap 120 seals the dilution tube 110, the sealing member 140 seals the suspension flow channel 1211, and the dilution tube 110 is shaken to make the sample fully contact with the diluent and dilute the sample to form a sample suspension. In the present embodiment, since the cover 121 has the first connection portion 1213 and the second connection portion 1214, when the sample piece 122 is transferred from the collection tube 130 and received in the dilution tube 111, the connection tube cover 120 can be connected to both the dilution tube 110 and the collection tube 130. The connection cap 120 seals the dilution tube 110, and the sealing member 140 seals the suspension flow passage 1211, so as to prevent the sample suspension in the dilution tube 110 from being splashed out of the dilution tube 110 from the opening of the suspension flow passage 1211 during the shaking of the dilution tube 110.

Further, when the sample is diluted, the sealing member 140 is removed, the collection tube 130 is connected to the side of the cap 121 opposite to the sampling member 122, the dilution tube 110 and the collection tube 130 are inverted, and the sample suspension flows through the suspension flow passage 1211 and enters the collection tube 130 under the filtering action of the filtering member 123 for collection for testing. Through setting up above-mentioned sample suspension preparation facilities 100 for the preparation of sample suspension compares in prior art uses the manual work to stir, filters, collects the step such as, and the operation is more convenient, uses simplyr. When the sample suspension needs to be used, the sample suspension can be directly poured out of the collecting tube 130, so that the sample suspension is convenient to use. Alternatively, the collection tube 130 can be directly placed on an automatic detection apparatus for automatic sample suction detection, so as to achieve better detection efficiency.

It should be noted that, in order to facilitate the flow transfer of the sample suspension between the dilution tube 110 and the collection tube 130, the dilution tube 110 and the collection tube 130 may also be made of a material with certain rigidity and elasticity. Therefore, when the sample in the dilution tube 110 is transferred to the collection tube 130 and collected, the volume of the dilution chamber 111 can be reduced by pressing the wall of the dilution tube 110, so that the sample suspension in the dilution chamber 111 can flow into the collection tube 130 to be collected under the pressing effect. Similarly, when the sample suspension is transferred from the interior of the collection tube 130 to the interior of the dilution tube 110 and collected, the collection tube 130 may be squeezed to facilitate the sample suspension in the collection chamber 131 to flow into the dilution chamber 111 for collection.

In one embodiment, the filter element 123 is located on the same side of the body housing 1212 as the sampling element 122. The filter 123 includes a filter screen 1233 and a filter screen cartridge 1232.

Specifically, in one embodiment, the filter 123 includes a filter screen 1233. The overflow portion 1216 of the cover 121 is spaced apart from the flow channel portion 1218, and surrounds the outer wall of the overflow portion 1216 and the main body 1212 to form an overflow groove 1219. The filtering net 1233 of the filtering member 123 is covered on the notch of the overflow groove 1219.

Specifically, the overflow portion 1216 may have an arc-shaped plate structure, a sheet shape, or a ring shape. In one embodiment, the overflow 1216 is a collar, and the overflow 1216 is disposed around the sleeve and spaced apart from the outer wall of the sleeve.

The filter element 123 further includes a filter mesh 1232 connecting the sampling element 122 and the overflow 1216. The filtering net cylinder 1232 and the filtering net 1233 are located on the same side of the cover 121, and enclose with the filtering net 1233 to form a filtering cavity 1231 communicating with the suspension flow passage 1211, and the diameter of the meshes of the filtering net cylinder 1232 is greater than that of the meshes of the filtering net 1233.

Specifically, the filter screen barrel 1232 and the filter screen 1233 are located on the same side of the main body housing 1212. One end face of the filter screen cylinder 1232 abuts against one end face of the overflow portion 1216 away from the main body seat 1212, and the other end face of the filter screen cylinder 1232 abuts against the sampling column 1221.

The mesh diameter and the number of meshes of the filter screen cylinder 1232 can be set as required. In one embodiment, when the dilution tube 110 contains a diluent and the collection tube 130 is used for collecting a sample suspension, the sample suspension in the dilution chamber 111 can enter the filtration chamber 1231 from the mesh of the filter mesh cylinder 1232 if the dilution tube 110 and the collection tube 130 are inverted. The sample with the particle size larger than the diameter of the mesh is blocked outside the filter cavity 1231. Thus, the filter mesh cartridge 1232 is configured to filter the sample suspension such that the particle size of the sample within the suspension entering the filter cavity 1231 is medium or small.

After the sample suspension in the dilution cavity 111 enters the filter cavity 1231 through the filtering action of the filter screen cylinder 1232, since the sample suspension required for the inspection is preferably moderate in sample particle size, not easy to be too small, and not easy to be too large, when the dilution tube 110 is tilted, a part of the sample with smaller particle size in the filter cavity 1231 can enter the overflow groove 1219 through the filter screen 1233, and is accommodated in the overflow groove 1219. Furthermore, the number of small-particle-size samples in the suspension flowing out of the filter cavity 1231 through the suspension flow passage 1211 is small, and most of the small-particle-size samples are medium-particle-size samples, so that the detection accuracy can be improved.

In one embodiment, the filter screen cylinder 1232 has a large end and a small end. The outer diameter of the filter screen cylinder 1232 gradually decreases in the direction from the large end to the small end. The large end is connected to the overflow 1216 and the small end is connected to the sampling piece 122.

The large end surface is connected with the end surface of the overflow portion 1216 far away from the main body seat 1212, and the small end surface is connected with the end surface of the sampling column 1221 far away from the sampling head 1222. Therefore, when the filter screen cylinder 1232 is connected to the sampling column 1221 and extends into the dilution cavity 111 or the collection cavity 131, a large gap is formed between the filter screen cylinder 1232 and the inner wall of the dilution cavity 111 or the collection cavity 131, so that the filter screen cylinder 1232 can be conveniently inserted into the opening of the dilution pipe 110 or the collection cavity 131 and can slide along the axial direction of the opening of the dilution pipe 110 or the collection cavity 131. Furthermore, the filter net barrel 1232 can be extended into the dilution cavity 111 or the collection cavity 131 for fixing, so as to realize the filtering function.

In the sample suspension preparation apparatus 100, after the sample is collected by the sampling piece 122, the cap 121 is connected to either the dilution tube 110 or the collection tube 130, so that the sampling piece 122 can be accommodated in the corresponding tube attached to the cap 121. The tube housing the sampling member 122 contains a diluent, and the sample contacts the diluent and can form a sample suspension after shaking. Further, the cover 121 is connected to the other of the dilution tube 110 or the collection tube 130, the tube body on which the sampling member 122 is placed is inverted, and the sample suspension flows through the suspension flow path and enters the other of the dilution tube 110 or the collection tube 130 to be collected under the filtering action of the filter member 123. By arranging the sample suspension preparation device 100, the preparation of the sample suspension is simple and easy to implement and the operation is convenient.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A sample suspension preparation device, comprising:

the dilution pipe is provided with an opening at one end and a dilution cavity;

the collecting pipe is provided with a collecting cavity; and

2. The sample suspension preparation device according to claim 1, wherein the dilution chamber contains a diluent for dilution, and the sampling member is contained in the collection chamber.

3. The sample suspension preparation device according to claim 1, further comprising a sealing member, wherein the sealing member is mounted to an opening at an end of the suspension flow channel remote from the sample member.

4. The sample suspension preparation device according to claim 3, wherein the sealing member is a sealing cap or a sealing membrane.

5. The specimen suspension preparation device according to claim 1, wherein the cover includes a first connection portion and a second connection portion, the dilution tube is fitted to either one of the first connection portion or the second connection portion, and the collection tube is fitted to the other one of the first connection portion or the second connection portion.

6. The apparatus according to claim 5, wherein the first and second connection portions are each an internal thread structure, and the outer walls of the tube ends of the collecting tube and the diluting tube are each provided with an external thread structure.

7. The sample suspension preparation device according to claim 6, wherein the cover further comprises a limiting portion, and the limiting portion abuts against an inner wall of the dilution tube or the collection tube.

8. The apparatus according to claim 1, wherein the cover further comprises a main body base, and an overflow portion and a flow passage portion disposed on the main body base, the flow passage portion defines a suspension flow passage, the overflow portion is spaced from the flow passage portion and surrounds an outer wall of the overflow portion and the main body base to form an overflow trough, and the filter member comprises a filter screen, and the filter screen covers a notch of the overflow trough.

9. The sample suspension preparation device according to claim 8, wherein the filter member further comprises a filter screen cylinder, the filter screen cylinder and the filter screen are positioned on the same side of the cover body and enclose a filter cavity communicated with the suspension flow passage, and the mesh diameter of the filter screen cylinder is larger than that of the filter screen.

10. The sample suspension preparation device according to claim 9, wherein the filter screen cartridge has a large end and a small end, the outer diameter of the filter screen cartridge gradually decreases in a direction from the large end to the small end, the large end is connected to the overflow portion, and the small end is connected to the sampling member.