CN218885467U

CN218885467U - Vacuum excrement sampler

Info

Publication number: CN218885467U
Application number: CN202222717897.2U
Authority: CN
Inventors: 乔建军; 吴昊; 訾灿; 赵秀丽
Original assignee: Zhejiang Shaoxing Research Institute Of Tianjin University
Current assignee: Zhejiang Shaoxing Research Institute Of Tianjin University
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-04-18
Anticipated expiration: 2032-10-14

Abstract

The utility model discloses a vacuum fecal sampler, which comprises a vacuum pressing nozzle 1, wherein the vacuum pressing nozzle 1 is hermetically connected with the upper end part thread of a collecting pipe 2, the vacuum pressing nozzle comprises a button body 1-1, a nozzle 1-2 is arranged on the button body, and a nozzle sealing plug 1-3 is movably connected with the nozzle 1-2; an air suction pipe 1-4 is arranged in the button body; a sampling rod 2-1 is arranged at the lower end of the button body; a sealing ring 2-2 is arranged at the lower part in the collecting pipe, the sealing ring is connected with a sealing plate 2-3, and a rubber pad 2-4 is arranged in the middle of the sealing plate; the upper end of the liquid storage bag 3 is fixedly connected with the lower surface of the sealing plate; the lower end part of the collecting pipe 2 is hermetically connected with the upper end part of the liquid storage bag protective shell 4 through threads, and the lower end of the liquid storage bag 3 is provided with a pressure balance hole 4-1. The utility model discloses simple structure, easy operation can make the excrement and urine sample be in the vacuum type excrement and urine sampler of anaerobic environment fast simultaneously.

Description

Vacuum excrement sampler

Technical Field

The utility model relates to a biological sample gathers technical field, especially relates to a vacuum type excrement and urine sampler.

Background

There are microbial communities with complex structures and huge varieties in human intestinal tracts, which eventually do not lack many microbes beneficial to human health. The method can detect microorganisms in the excrement by collecting excrement samples of the person who defecates so as to predict the influence of intestinal microorganisms on human health. Ensuring the quality of the stool sample is the first step to ensure that the subsequent analysis is accurate. As the intestinal tract of a human body is in an anaerobic environment, the intestinal microorganisms are mainly anaerobic, and the sample is required to be ensured to be in an anaerobic environment as far as possible in the sampling and storing process so as to eliminate the damage of oxygen to the anaerobic microorganisms in the excrement sample.

Provide a low temperature anaerobic excrement and urine collector in the patent CN109738233, the device is earlier through sampling spoon collection excrement and urine sample, then shifts excrement and urine sample to in gathering the pipe, then places anaerobic environment in gathering the pipe through the mode of argon gas replacement in, realizes excrement and urine sample's anaerobic storage. However, the whole process involves a plurality of collecting devices, the operation process is complex, the cost of the collector is high, and the method is not suitable for the operation of a sampler. CN212722091U discloses a fecal collecting device, which mainly comprises a liquid pipe bin and a sample collecting bin, wherein the liquid pipe bin is positioned at the upper part of the collecting bin. After the excrement sample is collected, the sample protection liquid in the liquid pipe bin is extruded to the collecting bin to immerse the excrement sample, so that sample protection is realized. However, the excrement sampler still contains a certain amount of air inside, and during storage and transportation, the oxygen in the residual air affects the anaerobic microorganisms in the excrement sample. Therefore, a novel feces sampler needs to be provided, so that the feces sample is rapidly in an anaerobic environment after sampling is completed, and the sampler is simple in structure and easy to operate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a simple structure, easy operation, can make the excrement and urine sample be in the vacuum type excrement and urine sampler of anaerobic environment fast simultaneously.

The technical scheme of the utility model is according to as follows:

a vacuum type excrement sampler comprises a vacuum pressing nozzle 1, wherein the vacuum pressing nozzle 1 is in threaded sealing connection with the upper end part of a collecting pipe 2, the vacuum pressing nozzle comprises a button body 1-1, a nozzle 1-2 is arranged on the button body, and a nozzle sealing plug 1-3 is movably connected with the nozzle 1-2; an air suction pipe 1-4 is arranged in the button body; a sampling rod 2-1 is arranged at the lower end of the button body; a sealing ring 2-2 is arranged at the lower part in the collecting pipe, the sealing ring is connected with a sealing plate 2-3, and a rubber pad 2-4 is arranged in the middle of the sealing plate; the upper end of the liquid storage bag 3 is fixedly connected with the lower surface of the sealing plate; the lower end part of the collecting pipe 2 is hermetically connected with the upper end part of the liquid storage bag protective shell 4 through threads, and the lower end of the liquid storage bag 3 is provided with a pressure balance hole 4-1.

The utility model has the advantages that:

simple structure, easy operation can make the excrement and urine sample be in the vacuum type excrement and urine sampler of anaerobic environment fast simultaneously.

Drawings

Fig. 1 is a schematic structural view of a vacuum fecal sampler of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

A vacuum type excrement sampler is shown in figure 1 and comprises a vacuum pressing spray head 1, wherein the vacuum pressing spray head 1 is in threaded sealing connection with the upper end of a collecting pipe 2, the vacuum pressing spray head comprises a button body 1-1, a nozzle 1-2 is arranged on the button body, and a nozzle sealing plug 1-3 is movably connected with the nozzle 1-2; an air suction pipe 1-4 is arranged in the button body; a sampling rod 2-1 is arranged at the lower end of the button body; a sealing ring 2-2 is arranged at the lower part in the collecting pipe, the sealing ring is connected with a sealing plate 2-3, and a rubber pad 2-4 is arranged in the middle of the sealing plate; the upper end of the liquid storage bag 3 is fixedly connected with the lower surface of the sealing plate; the lower end part of the collecting pipe 2 is hermetically connected with the upper end part of the liquid storage bag protective shell 4 through threads, and the lower end of the liquid storage bag 3 is provided with a pressure balance hole 4-1.

The liquid storage bag 3 is made of soft material so that the liquid storage bag has certain elasticity.

The sealing ring can slide up and down under the pushing of air pressure;

the rubber pad is made of a material which is easy to break under the action of pressure.

The utility model relates to a vacuum type excrement and urine sampler use steps as follows:

(1) Screwing off the vacuum pressing spray head, and sampling the excrement sample by using a sampling rod;

(2) Installing a vacuum pressing nozzle at an original position and screwing;

(3) Screwing off the liquid storage bag protective shell, forcibly squeezing the liquid storage bag to make liquid (protective liquid: for example, GWF04-7, or other protective liquid) put in the liquid storage bag in advance break the rubber mat and enter the collecting pipe, and screwing the liquid storage bag protective shell tightly with the lower end of the collecting pipe again;

(4) And opening a nozzle sealing plug of the vacuum pressing nozzle, pressing the button for multiple times, and discharging the air in the collecting pipe. The sealing plate in the collecting pipe can be connected with the sealing ring to slowly rise under the action of air pressure in the pressing process, and the sealing ring prevents liquid from being exposed; the liquid storage bag can also gradually reduce the volume under the action of pressure.

(5) And after a small amount of liquid is sprayed out of the nozzle, the nozzle is plugged by the nozzle sealing plug, so that the sample is stored in the collecting tube under the condition that no air exists.

Claims

1. A vacuum type excrement sampler comprises a vacuum pressing spray head (1), wherein the vacuum pressing spray head (1) is in threaded sealing connection with the upper end of a collecting pipe (2), the vacuum pressing spray head comprises a button body (1-1), a spout (1-2) is arranged on the button body, and a spout sealing plug (1-3) is movably connected with the spout (1-2); an air suction pipe (1-4) is arranged in the button body; it is characterized in that the lower end of the button body is provided with a sampling rod (2-1); a sealing ring (2-2) is arranged at the lower part in the collecting pipe, the sealing ring is connected with a sealing plate (2-3), and a rubber pad (2-4) is arranged in the middle of the sealing plate; the upper end of the liquid storage bag (3) is fixedly connected with the lower surface of the sealing plate; the lower end part of the collecting pipe (2) is in threaded sealing connection with the upper end part of the liquid storage bag protective shell (4), and the lower end of the liquid storage bag (3) is provided with a pressure balance hole (4-1).