CN211035925U

CN211035925U - Device for laboratory staff to sample and interpret microorganism

Info

Publication number: CN211035925U
Application number: CN201921905775.8U
Authority: CN
Inventors: 王珍; 陆雯; 吴岳琴; 俞琦娅; 李秀通; 彭醒醒
Original assignee: Greentown Nongke Detection Technology Co ltd
Current assignee: Greentown Nongke Detection Technology Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-07-17
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a supply laboratory apparatus of experimenter to sample and interpret microorganism, concretely relates to laboratory apparatus field, including body, the sampling stick that holds the culture medium and the inversion pipe that is used for detecting whether the microorganism produces gas, the upper end of inversion pipe and the bottom spiro union of sampling stick, the lower extreme of inversion pipe is equipped with the through-hole that supplies the culture medium inflow, the lateral wall of inversion pipe is equipped with spacing fin, the inside wall of body is equipped with fixed fin, and the quantity of fixed fin is two at least, and the space of the spacing fin of adaptation is left at the middle part of two fixed fins. The utility model has the advantages of integrating microorganism sampling and pipe throwing.

Description

Device for laboratory staff to sample and interpret microorganism

Technical Field

The utility model relates to a laboratory apparatus field specifically is a supply the laboratory staff to sample and interpret device of microorganism.

Background

In the process of detecting a microorganism contained in a target sample, a collected microorganism is inoculated into a liquid medium by using a cotton swab and cultured. And then judging the type of the microorganism or whether the microorganism exceeds the standard or not by detecting the metabolite of the microorganism in the culture process. For example, when detecting Escherichia coli in drinking water, an experimenter usually cultures a medium inoculated with a water sample in an incubator at about 37 ℃ for 24 hours. When acid is generated, the solution is changed from purple to yellow. When gas is produced, bubbles are generated in the inverted fermentation tube. If all the added fermentation tubes have no gas generation, the aerogenic microorganism is reported to be negative, if gas generation tubes exist, the separation culture is needed, and then a corresponding culture medium identification experiment is carried out.

In the microorganism detection process, experimenters need to sterilize the whole culture medium to prepare the aerogenic microorganism detection culture solution. Before sterilization, experimenters need to throw inverted fermentation tubes into the culture medium and use the tubes after sterilization. During sampling, the experimenter can open the culture medium and put the sampling swab head into the culture medium for culture. However, in the process of throwing the fermentation tube to the culture medium, the experimenter is liable to throw the open end of the fermentation tube upwards by mistake, so that the fermentation tube cannot collect the gas produced by the microorganism, and the experimenter loses the function of judging whether the microorganism is the aerogenic bacterium.

SUMMERY OF THE UTILITY MODEL

The utility model provides a supply the experimenter to sample and interpret the device of microorganism, this microorganism sampling detection device has the microorganism sampling of collection, throws pipe advantage as an organic whole.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a supply laboratory technician to sample and interpret microbial device, including the body that holds the culture medium, sampling stick and be used for detecting the pipe of inverteing whether the microorganism produces gas, the upper end of the pipe of inverteing and the bottom spiro union of sampling stick, the lower extreme of the pipe of inverteing is equipped with the through-hole that supplies the culture medium inflow, the lateral wall of the pipe of inverteing is equipped with spacing fin, the inside wall of body is equipped with fixed fin, and the quantity of fixed fin is two at least, and the space of the spacing fin of adaptation is left at the middle part of two fixed fins.

Preferably, the upper end of the inverted tube is provided with a threaded section, and correspondingly, the end of the sampling rod is provided with a threaded groove in threaded connection with the threaded section.

Preferably, cotton swabs are uniformly arranged at the end part of the inverted pipe, which is opposite to the threaded section, and the cross section of the end part is arc-shaped.

Preferably, the pipe body is provided with a cover body, and the upper end of the cover body is provided with a gas detection device for assisting in detecting the gas output.

Preferably, the gas detection device comprises a fixed seat, a connecting column, an air outlet pipe and a sealing sliding plug, wherein the fixed seat is fixedly arranged at the upper end of the cover body, the fixed seat is detachably connected with the connecting column, a vent hole is formed in the middle of the connecting column, one end of the air outlet pipe is fixed with the connecting column and communicated with the vent hole, and the sealing sliding plug is slidably arranged in the hollow portion of the air outlet pipe.

Preferably, the middle part of the fixing seat is provided with a fixing thread groove, and the connecting column is fixed with the fixing seat through the fixing thread groove in a threaded manner.

Preferably, the gas detection device further comprises a U-shaped piston rod, one end of the U-shaped piston rod is fixed with one end, back to the connecting column, of the sealing sliding plug, and an indicating needle is arranged at the free end of the U-shaped piston rod.

Preferably, the outer side wall of the air outlet pipe is provided with scales.

Preferably, the opening end of the pipe body is provided with a locking thread section, and correspondingly, the inner side wall of the cover body is provided with an inner thread matched with the locking thread section.

The utility model has the advantages that:

the utility model discloses in, the upper end of the handheld sampling stick of experimenter accessible carries out the sampling operation. Because the inversion tube and the sampling rod are screwed. When the lower extreme sampling of inversion pipe was accomplished, the upper end of sampling stick can be handed for the spacing fin that inversion pipe lateral wall set up is located and presss from both sides tightly between two fixed fins that the body inside wall was equipped with. At this time, the experimenter may rotate the sampling stick so that the inversion tube and the sampling stick are separated, and the inversion tube with the microorganism coated on the outer peripheral portion may be placed in the culture medium. When the microorganism in the culture medium generates gas, the gas can enter through the through hole arranged at the lower end of the inverted tube, so that the gas can be observed by experimenters. Through using this microorganism sampling detection device, can combine microorganism sampling and throw little pipe together, practiced thrift experimenter's time greatly, also can avoid experimenter to throw the inversion pipe of wrong opening direction.

Drawings

FIG. 1 is a schematic view showing the structure of an apparatus for sampling and interpreting microorganisms by an experimenter in example 1;

FIG. 2 is a schematic sectional view showing the structure of an apparatus for sampling and interpreting microorganisms by an experimenter in example 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic view showing the construction of a sampling wand and an inverted tube in example 1;

FIG. 5 is a schematic view showing the structure of an apparatus for sampling and interpreting microorganisms by an experimenter in example 2;

FIG. 6 is a schematic sectional view showing the structure of an apparatus for sampling and interpreting microorganisms by an experimenter in example 2.

In the figure: 1. the sampling device comprises a pipe body, 11, a locking thread section, 12, a fixing convex rib, 13, an upper containing pipe, 130, an upper pipe thread, 131, a partition plate, 14, a lower containing pipe, 140, a lower pipe thread, 2, a sampling rod, 3, an inverted pipe, 31, a thread section, 32, a limiting convex rib, 4, a cover body, 41, an internal thread, 42, a fixing seat, 43, a connecting column, 44, an air outlet pipe, 45, a sealing sliding plug, 460 and an indicating needle.

Detailed Description

Example 1

The embodiment provides a technical scheme:

as shown in fig. 1-4, a device for experimenters to sample and interpret microorganisms comprises a tube body 1 for accommodating a culture medium, a sampling rod 2 and an inverted tube 3 for detecting whether the microorganisms produce gas, wherein the upper end of the inverted tube 3 is in threaded connection with the bottom end of the sampling rod 2, the lower end of the inverted tube 3 is provided with a through hole 33 for the culture medium to flow in, the side wall of the inverted tube 3 is provided with a limiting convex rib 32, the inner side wall of the tube body 1 is provided with a fixed convex rib 12, the number of the fixed convex ribs 12 is at least two, and the middle parts of the two fixed convex ribs 12 are provided with gaps matched with the limiting convex ribs 32.

As shown in fig. 2 and 4, the upper end of the inverted tube 3 is provided with a threaded section 31, and accordingly, the end of the sampling rod 2 is provided with a threaded groove threadedly engaged with the threaded section 31.

In this embodiment, the end of the inverted tube 3 opposite to the threaded section 31 is uniformly provided with cotton swabs, and the cross section of the end is arc-shaped. Laboratory staff's accessible is handheld sampling stick, and paints the sample with the inversion pipe 3 that the week portion was equipped with the cotton swab, carries out the microorganism and samples.

In this embodiment, the cover 4 is disposed on the pipe body 1, and a gas detection device for assisting in detecting the amount of gas discharged is provided on the upper end of the cover 4.

As shown in fig. 2 and 3, the gas detection device comprises a fixed seat 42 fixedly arranged at the upper end of the cover body 4, a connecting column 43, a gas outlet pipe 44 and a sealing sliding plug 45, the fixed seat 42 is detachably connected with the connecting column 43, a vent hole is formed in the middle of the connecting column 43, one end of the gas outlet pipe 44 is fixed with the connecting column 43 and communicated with the vent hole, and the sealing sliding plug 45 is slidably arranged in the hollow interior of the gas outlet pipe 44. When the microorganism is cultured in the culture medium in the tube 1, the generated gas can enter the gas outlet pipe 44 from the upper end of the cover 4, and further the sealing sliding plug 45 can be pushed. In the actual operation process, if the bubbles in the inverted pipe are not obvious, the movement condition of the sealing sliding plug 45 can be observed, so that whether the microorganism produces the gas or not can be judged.

In this embodiment, a fixing thread groove is formed in the middle of the fixing base 42, and the connecting column 43 is fixed to the fixing base 42 by the fixing thread groove.

As shown in fig. 3, the gas detecting device further includes a "U" shaped piston rod, one end of the "U" shaped piston rod is fixed to one end of the sealing sliding plug 45 opposite to the connecting column 43, and a pointer 460 is disposed at a free end of the "U" shaped piston rod. The experimenter may move the sealing slide plug 45 by holding the "U" shaped piston rod in his hand.

In order to facilitate the observation of experimenters, the outer side wall of the air outlet pipe 44 is provided with scales.

In this embodiment, the opening end of the tube body 1 is provided with a locking thread section 11, and correspondingly, the inner side wall of the cover body 4 is provided with an internal thread 41 matched with the locking thread section 11.

Example 2

As shown in fig. 5 and 6, in example 1, after the cover 4 is opened during sampling by the experimenter, bacteria in the air may contaminate the culture medium after long-term exposure. This embodiment is further improved from embodiment 1 by designing the pipe body 1 so as to have the upper accommodation pipe 13 and the lower accommodation pipe 14 screwed and fixed, and the end of the upper accommodation pipe 13 is partitioned by the partition plate. When the laboratory technician unscrews the lid 4, accessible sampling stick 2 gathers the microorganism of target area, gathers the back that finishes, and rotatable holding pipe 13 and holding pipe 14 down can insert sampling stick 2 in the liquid medium, will invert the pipe through the mode that embodiment 1 described and lift off, put into the culture medium, can accomplish whole sampling process. In the operation process, the direction of the opening end of the inverted pipe 3 does not need to be manually judged by experimenters, and the experimenters can be prevented from making mistakes.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a supply the laboratory technician to sample and interpret microbial device, its characterized in that, including body (1), the sampling stick (2) that holds the culture medium and be used for detecting inversion pipe (3) whether the microorganism produces gas, the upper end of inversion pipe (3) and the bottom spiro union of sampling stick (2), the lower extreme of inversion pipe (3) is equipped with through-hole (33) that supply the culture medium to flow in, the lateral wall of inversion pipe (3) is equipped with spacing fin (32), the inside wall of body (1) is equipped with fixed fin (12), and the quantity of fixed fin (12) is two at least, and the space of the spacing fin (32) of adaptation is left at the middle part of two fixed fin (12).

2. A device for laboratory personnel to sample and interpret microorganisms according to claim 1, wherein the upper end of the inverted tube (3) is provided with a threaded section (31), and correspondingly, the end of the sampling rod (2) is provided with a threaded groove threaded with the threaded section (31).

3. The device for laboratory staff to sample and interpret microorganisms according to claim 1, wherein the end of the inverted tube (3) facing away from the threaded segment (31) is uniformly provided with a cotton swab and the cross section of the end is arc-shaped.

4. The device for sampling and interpreting microorganisms by laboratory staff according to claim 1, characterized in that the tube body (1) is provided with a cover body (4), and the upper end of the cover body (4) is provided with a gas detection device for assisting in detecting gas output.

5. The device for laboratory staff to sample and interpret microorganisms according to claim 4, wherein the gas detection device comprises a fixed seat (42), a connecting column (43), an air outlet pipe (44) and a sealing sliding plug (45), the fixed seat (42) is fixedly arranged at the upper end of the cover body (4), the connecting column (43) is detachably connected with the fixed seat (42), a vent hole is formed in the middle of the connecting column (43), one end of the air outlet pipe (44) is fixed with the connecting column (43) and is communicated with the vent hole, and the sealing sliding plug (45) is slidably arranged in the hollow interior of the air outlet pipe (44).

6. The device for sampling and interpreting microorganisms by laboratory staff according to claim 5, wherein the middle part of the fixed seat (42) is provided with a fixed thread groove, and the connecting column (43) and the fixed seat (42) are fixed by the fixed thread groove in a threaded manner.

7. The device for laboratory staff to sample and interpret microorganisms according to claim 5, wherein the gas detection device further comprises a U-shaped piston rod, one end of the U-shaped piston rod is fixed with one end of the sealing sliding plug (45) facing away from the connecting column (43), and the free end of the U-shaped piston rod is provided with an indicating needle (460).

8. The device for sampling and interpreting microorganisms by laboratory personnel according to claim 5, wherein the outer side wall of the air outlet pipe (44) is provided with a scale.

9. A device for laboratory staff to sample and interpret microorganisms according to claim 4, characterized in that the open end of the tube (1) is provided with a locking thread section (11), and correspondingly the inner side wall of the cap (4) is provided with an inner thread (41) adapted to the locking thread section (11).