CN219319845U

CN219319845U - Excrement sampler

Info

Publication number: CN219319845U
Application number: CN202223574071.1U
Authority: CN
Inventors: 廖怿; 陈睿越
Original assignee: Shenzhen University
Current assignee: Shenzhen University
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-07-07
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a fecal sampler, which comprises a collecting part, a storing part and a sucking part, wherein the storing part is hollow and is provided with a storing cavity in an inner space, the collecting part and the sucking part are respectively arranged at two ends of the storing part, the collecting part is provided with a spoon-shaped collecting cavity, the collecting cavity is formed by outwards extending the side wall of the storing part along the length direction of the collecting cavity, the collecting cavity is communicated with the storing cavity, the sucking part is a saccular hollow pressing ball, the inner space of the sucking part is communicated with the storing cavity, one end of the storing part, which is close to the collecting part, is provided with a breaking part, and the breaking part is an annular notch concavely arranged on the outer side wall of the storing part; the stool has the advantages of simple structure, low production cost and large bearing capacity, can solve the sampling problem of loose stool and bloody stool, and can transfer high-viscosity stool samples in a spoon head breaking way, thereby avoiding pollution.

Description

Excrement sampler

Technical Field

The utility model relates to the technical field of biological sample collection, in particular to a fecal sampler.

Background

In humans, especially the intestinal tract, there are a vast number of diverse microorganisms. The group of microorganisms depend on the intestinal life of animals, and simultaneously help hosts to complete various physiological and biochemical functions. As the most huge and complex microecological system of human body, intestinal microorganisms and metabolites thereof not only can regulate the health of human body, but also play an important bridge role between diet and host. To study this system, human intestinal microorganisms are analyzed, and subsequent research analysis can be performed by collecting a fecal sample from the human and extracting DNA and RNA from the fecal sample. For patients with gastrointestinal diseases, such as Inflammatory Bowel Disease (IBD), there are often conditions of thin stool, bloody stool, which can lead to difficulties in stool sampling to a large extent, resulting in insufficient stool sampling. In order to minimize sampling difficulties caused by loose stool and bloody stool, a new type of multifunctional stool sampler is needed for sampling the stool.

The more commonly used fecal sampling methods at present mainly comprise two methods: 1. the integrated cover spoon sampler consists of a collecting tube and a collecting spoon connected with the outer cover, a user needs to use the collecting spoon to dig enough excrement and then put a sample into the collecting tube, and a cover is covered to finish sampling; 2. the split type sampler uses a push type design, and can drop off the fecal spoon head along with sampling in a push mode, so that the problem of difficult collection of high-viscosity fecal samples is solved.

For stool sampling mode one, the following deficiencies exist: the integral cover spoon sampler is difficult to take a thin stool and blood stool sample because of too small spoon mouth.

For stool sampling mode two, the following deficiencies exist: the split design cost is too high, and the device needs to be assembled in the production process, so that the production cost is increased, and the production efficiency is low.

Disclosure of Invention

In view of the above, the utility model aims at overcoming the defects of the prior art, and mainly aims to provide a fecal sampler which has the advantages of simple structure, low production cost and large carrying capacity, can solve the problems of loose feces and bloody stool sampling, and can transfer high-viscosity fecal samples in a spoon head breaking way so as to avoid pollution.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a fecal sampling ware, includes collection portion, storage portion and suction portion, storage portion is hollow tubular, and its inner space is the storage chamber, collection portion and suction portion set up the both ends at storage portion respectively, collection portion has the collection chamber that is the spoon form, and it is outwards extended by the lateral wall of storage portion along its length direction shaping, collection chamber and storage chamber intercommunication, suction portion is the hollow ball of pressing of sacculus, the inner space and the storage chamber intercommunication of suction portion, the one end that storage portion is close to collection portion is equipped with the rupture portion, the annular lack groove on storage portion lateral wall is located for the indent to the rupture portion.

As a preferred embodiment, the storage part is made of a transparent biodegradable material, and the transparent biodegradable material is one of polylactic acid (PLA), polyhydroxyalkanoate (PHA), polyvinyl alcohol (PVA), poly- β -hydroxybutyrate (PHB) or aliphatic aromatic copolyester (Ecoflex).

As a preferable mode, the storage part is provided with a minimum sampling amount mark.

As a preferable scheme, the suction part is made of a flexible rubber material, and the flexible rubber material is one of natural rubber, butyl rubber, silicon rubber, photosensitive resin or TPU elastic soft rubber.

As a preferable scheme, the depth of the annular groove is uneven, and the depth of the annular groove at the opposite side of the opening direction of the collecting cavity is smaller than the depth of the annular groove at the opposite side of the opening direction of the collecting cavity.

As a preferred aspect, the collection cavity depth range is within 1 centimeter.

As a preferable scheme, the storage cavity is in a conical column shape, and the inner diameter of one end of the storage cavity, which is close to the collecting part, is not larger than the inner diameter of one end, which is close to the sucking part.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and particularly, the technical scheme shows that the two ends of the storage part are respectively provided with the collecting part and the sucking part, and meanwhile, one end of the storage part, which is close to the collecting part, is provided with the breaking part, so that fecal samples with different properties can be conveniently collected, sample pollution is reduced, and the test accuracy of the samples is ensured. Meanwhile, the fecal sampler adopts an integrated forming process, has a simple structure and can save production cost. In addition, biodegradable materials are adopted in the production, so that other potential pollution is reduced. By arranging the breaking part, the thickness of the pipe wall of the breaking part is thinner than that of other parts of the storage part, so that the breaking part can be broken in a directional way, the splash risk of the fecal sample is eliminated, and the collection of the high-viscosity fecal sample is facilitated; the suction part sucks liquid non-formed excrement into the lumen of the collection and storage part by utilizing atmospheric pressure, so that the collection of the stool sample is facilitated.

In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an embodiment of the present utility model;

FIG. 3 is a broken-away section view of an embodiment of the present utility model.

Reference numerals illustrate:

10. an acquisition unit; 11. a collection chamber;

20. a storage unit; 21. a storage chamber; 22. a minimum sample size mark;

30. a suction part;

40. a breaking part; 41. annular groove.

Detailed Description

For the purpose of making the technical solution and advantages of the present utility model more apparent, the present utility model will be further described in detail below with reference to the accompanying drawings and examples of implementation. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "fixed 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 are used herein for illustrative purposes only.

Referring to fig. 1 to 3, an embodiment of the present utility model provides a fecal sampler, including a collecting portion 10, a storing portion 20 and a sucking portion 30, where the storing portion 20 is hollow and has a storing cavity 21 in an inner space, the collecting portion 10 and the sucking portion 30 are respectively disposed at two ends of the storing portion 20, the collecting portion 10 has a collecting cavity 11 in a spoon shape, which is formed by extending a side wall of the storing portion 20 outward along a length direction thereof, the collecting cavity 11 is communicated with the storing cavity 21, the sucking portion 30 is a hollow pressing ball in a capsule shape, an inner space of the sucking portion 30 is communicated with the storing cavity 21, one end of the storing portion 20 near the collecting portion 10 is provided with a breaking portion 40, and the breaking portion 40 is an annular notch 41 concavely disposed on an outer side wall of the storing portion 20.

In this embodiment, the storage part 20 is made of a transparent biodegradable material, which is one of polylactic acid (PLA), polyhydroxyalkanoate (PHA), polyvinyl alcohol (PVA), poly- β -hydroxybutyrate (PHB) or aliphatic aromatic copolyester (Ecoflex). The suction part 30 is made of a flexible rubber material, and the flexible rubber material is one of natural rubber, butyl rubber, silicon rubber, photosensitive resin or TPU elastic soft rubber.

Further, a minimum sampling amount index 22 is provided on the storage unit 20. The depth of the annular groove 41 is uneven, and the depth of the annular groove 41 on the opposite side of the opening direction of the collecting cavity 11 is smaller than the depth of the annular groove 41 on the opposite side of the opening direction of the collecting cavity 11; the wall thickness of the breaking part 40 is thinner than the thickness of other parts of the storage part 20, in addition, the spoon mouth direction of the breaking part 40 is thicker than the spoon back direction thickness, so that the breaking part 40 is convenient for directional breaking, the risk of splash of a fecal sample is eliminated, and the collection of a high-viscosity fecal sample is convenient. The depth of the collection cavity 11 is within 1 cm. The storage cavity 21 is in a cone column shape, and the inner diameter of the storage cavity 21 near one end of the collecting part 10 is not larger than the inner diameter near one end of the sucking part 30.

The working principle is as follows:

the first step, a fecal sampler comprising a storage part 20 made of plastic material, a collection part 10 and a suction part 30 made of flexible material at the upper end of the storage part 20 is used for digging or sucking a fecal sample;

step two, aiming at the formed excrement, the collecting part with the excrement sample is propped against the pipe wall of the excrement preservation pipe, the breaking part 40 is propped against the pipe orifice of the excrement preservation pipe and is broken by force, so that the excrement sample is transferred into the excrement preservation pipe;

and thirdly, aiming at loose stool and bloody stool, pressing the suction part 30, sucking the non-molded stool into the storage cavity 21 by utilizing atmospheric pressure, and pressing the suction part 30 again to squeeze the sample into the stool preservation tube.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements, etc. within the principles of the present utility model should be included in the scope of the present utility model.

Claims

1. A fecal sampler, characterized in that: including collection portion, storage portion and suction portion, storage portion is hollow tubular, and its inner space is the storage chamber, collection portion and suction portion set up the both ends at storage portion respectively, collection portion has the collection chamber that is the spoon form, and it is outwards extended by the lateral wall of storage portion along its length direction shaping, collection chamber and storage chamber intercommunication, the suction portion is the hollow ball of pressing of saccular, the inner space and the storage chamber intercommunication of suction portion, the storage portion is close to the one end of collection portion and is equipped with the rupture portion, the annular lack groove on the storage portion lateral wall is located for the indent to the rupture portion.

2. A fecal sampler according to claim 1, characterized in that: the storage part is made of a transparent biodegradable material, and the transparent biodegradable material is one of polylactic acid (PLA), polyhydroxyalkanoate (PHA), polyvinyl alcohol (PVA), poly-beta-hydroxybutyrate (PHB) or aliphatic aromatic copolyester (Ecoflex).

3. A fecal sampler according to claim 1, characterized in that: the storage part is provided with a minimum sampling amount marking line.

4. A fecal sampler according to claim 1, characterized in that: the suction part is made of a flexible rubber material, and the flexible rubber material is one of natural rubber, butyl rubber, silicon rubber, photosensitive resin or TPU elastic soft rubber.

5. A fecal sampler according to claim 1, characterized in that: the depth of the annular groove is uneven, and the depth of the annular groove at one side opposite to the opening direction of the collecting cavity is smaller than that of the annular groove at one side opposite to the opening direction of the collecting cavity.

6. A fecal sampler according to claim 1, characterized in that: the depth range of the collecting cavity is within 1 cm.

7. A fecal sampler according to claim 1, characterized in that: the storage cavity is in a cone column shape, and the inner diameter of one end of the storage cavity, which is close to the collecting part, is not larger than the inner diameter of one end, which is close to the sucking part.