CN217132672U - Excrement sampler - Google Patents

Abstract

The utility model relates to a stool sampler belongs to medical supplies technical field. Comprises a needle cylinder, a piston and two replaceable needle heads; the inner wall of the needle cylinder is provided with a clamping groove which is a vertical track, and the middle part of the clamping groove is provided with a turn; the piston part is provided with a bayonet, and when the needle cylinder is combined with the piston, the bayonet of the piston falls into the clamping groove of the needle cylinder and can freely stretch out and draw back within the length range of the clamping groove; the replaceable two needle heads are used for extracting solid excrement, and the needle head is in a straight cylindrical shape; the second needle is used for extracting liquid excrement, and the needle is conical, so that the opening is reduced compared with the first needle. The needle head is fixed on the needle cylinder through a screw. This excrement and urine sampler can not only accurate ration extract excrement appearance, can accomplish easily to the excrement appearance of different states moreover and draw.

Description

Excrement sampler

Technical Field

The utility model relates to a stool sampler belongs to medical supplies technical field.

Background

When the intestinal flora is detected, the excrement needs to be sampled and treated, and the traditional method is to extract the excrement by using a medicine spoon, so that the method is simple and quick. However, the operation is relatively rough, so that quantitative extraction of a stool sample is difficult to achieve, the stool sample is difficult to further store, and more seriously, the bacterial flora pollution is possibly caused to cause great influence on the research in the later stage of false positive results in experiments.

To the best knowledge of the inventor, the most major and key technical problems faced in the sampling treatment of feces are as follows:

(1) it is required to be sterile.

(2) Quantitative sampling is a key issue for stool extraction techniques. The traditional medicine spoon cannot achieve the purpose at all, can be picked by feeling, and even if the medicine spoon is used for weighing, inconvenience and discomfort are caused.

(3) The taken sample can be stored without affecting the internal flora.

(4) Whether the taken sample can be smoothly taken out when in need of use.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the excrement sampler can be operated aseptically, extract excrement quantitatively, and the taken sample is easy to store and can be taken out smoothly when needed.

The utility model discloses a solve the technical scheme that above-mentioned technical problem provided and be: a stool sampler is an injector-like sampler and comprises a needle cylinder, a piston and two replaceable needle heads; the inner wall of the needle cylinder is provided with a clamping groove which is a vertical track, and the middle part of the clamping groove is provided with a turn; the piston part is provided with a bayonet, and when the needle cylinder is combined with the piston, the bayonet of the piston falls into the clamping groove of the needle cylinder and can freely stretch out and draw back within the length range of the clamping groove; the two needles are different in shape, the first needle is used for extracting solid excrement, and the first needle is in a straight cylindrical shape; the second needle head is used for extracting liquid excrement, is conical in shape, reduces an opening compared with the first needle head, and is fixed on the needle cylinder through a screw.

Preferably, the outside of the barrel is marked with a scale for measuring the internal fecal sample draw volume.

Preferably, the needle head I is used for extracting solid excrement, and the needle head is in a straight cylindrical shape, so that the resistance in excrement absorption can be greatly reduced, and easy and simple extraction can be realized; the second needle head is used for extracting liquid excrement, and the needle head is conical, so that compared with the first needle head, the opening is reduced, the surface tension is increased, and the dropping of the excrement can be effectively reduced.

Preferably, the needle head can be fixed on the needle cylinder through a screw, the joint is tight, and the connection is good

Preferably, the sampler is packaged aseptically.

Preferably, the excrement sampler is made of low-temperature-resistant materials.

A syringe-shaped sampler with scales comprises a needle head, a needle cylinder and a piston.

During the use, will the utility model discloses assemble, to different states excrement appearance, select one from two kinds of sample syringe needles of solid, liquid, closely link through screw thread and cylinder. After the needle tube is assembled, the piston is inserted, the bayonet is scratched in along the clamping groove, and when the needle tube is blocked, the piston is rotated clockwise, so that the piston can be further inserted into the needle tube, and finally the assembly is finished.

The utility model has the advantages that:

the excrement sampler of the utility model is a sampler based on the appearance of the injector, and the sampler has precise scale bars, so that the sampling can achieve the precise quantitative effect; the sampler is aseptically packaged and can be used when being opened, so that the flora pollution is avoided; the material is low temperature resistant, and has the effect of storing samples at-80 ℃, so that the samples can be clinically stored, and the samples can be accurately sampled according to the scales at the later stage; in addition, the sampler possesses the sampling head of many two kinds of different grade types, respectively to different excrement and urine states to reach high-efficient accurate sample.

The utility model discloses an injector appearance sampler for drawing faecal sample, include the syringe needle to different excrement appearance states specially, prevent to pull the draw-in groove structure of taking off the piston hard excessively.

The utility model discloses a stool sampler designs the syringe needle of different forms, deals with different situation stool sample. The utility model aims to be applied to clinical excrement extraction, and clinically, patients can discharge excrement in different states due to physical factors, if the excrement is solid, a needle I can be used, and the needle I is straight and can easily and laborsavingly extract excrement samples; if the liquid state is adopted, a second needle head can be used, the second needle head is conical at the lower end, and the problems that in the extraction process, the dropping of the excrement sample causes insufficient sampling of the excrement sample, the environment is polluted and the like can be effectively solved. In addition, a clamping groove is arranged on the inner wall of the needle cylinder in the needle cylinder part; the piston part is provided with a bayonet. When the needle cylinder is combined with the piston, the bayonet of the piston falls into the clamping groove of the needle cylinder, and when a sample is extracted, the piston can be prevented from being pulled out by too hard force, so that excrement is spilled and the environment is polluted.

Drawings

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

Fig. 1 is a schematic structural view of a needle tube according to embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of a needle tube according to embodiment 1 of the present invention.

Fig. 3 is a schematic view of a piston structure according to embodiment 1 of the present invention.

Fig. 4 is a schematic view of the structure of the needle head of embodiment 1 of the present invention.

Fig. 5 is a schematic sectional structure diagram of embodiment 1 of the present invention.

Detailed Description

Example 1

The stool sampler of this embodiment is shown in fig. 1, and is in the shape of a syringe, and comprises a syringe, a piston and two needles.

The inner wall of the needle cylinder is provided with a clamping groove which is a vertical track, the middle part of the clamping groove is provided with a turn, and the piston part is provided with a bayonet. When the needle cylinder is combined with the piston, the bayonet of the piston falls into the clamping groove of the needle cylinder and can freely stretch out and draw back within the length range of the clamping groove.

The outside of the syringe is marked with a scale for measuring the internal fecal sample draw volume.

The needle head can be fixed on the needle cylinder through a screw, the joint is tight, and the connection is good.

The pinhead is divided into one and two. The needle head I is used for extracting solid excrement, is in a straight cylindrical shape, can greatly reduce resistance when the excrement is absorbed, and can be easily and simply extracted; the second needle head is used for extracting liquid excrement, and the needle head is conical, so that compared with the first needle head, the opening is reduced, the surface tension is increased, and the dropping of the excrement can be effectively reduced.

The sampler is assembled as shown in fig. 5. When sampling, the needle is inserted into the excrement, and the piston is pulled backwards to extract the excrement sample.

When the sample is preserved, the sample can be directly frozen after being wrapped by a preservative film.

When the sample is needed to be used, the piston is pushed forwards to directly push out the stored sample.

The sampler is marked with definite scales, so that the requirement of accurate sampling can be met.

The sampler can be used as a storage container for storing samples (freezing) without influencing the internal flora.

The sampler uses two needles of solid and liquid in different forms, so as to achieve the purpose of efficiently sampling the excrement.

The tail end of the sampler is provided with a clamping groove and a bayonet, so that the piston is prevented from being pulled out by over-violent force during extraction.

Claims (6)

1. A stool sampler is characterized in that the stool sampler is an injector-like sampler and comprises a needle cylinder, a piston and two replaceable needle heads; the inner wall of the needle cylinder is provided with a clamping groove which is a vertical track, and the middle part of the clamping groove is provided with a turn; the piston part is provided with a bayonet, and when the needle cylinder is combined with the piston, the bayonet of the piston falls into the clamping groove of the needle cylinder and can freely stretch out and draw back within the length range of the clamping groove; the two needles are different in shape, the first needle is used for extracting solid excrement, and the first needle is in a straight cylindrical shape; the second needle head is used for extracting liquid excrement, is conical in shape, reduces an opening compared with the first needle head, and is fixed on the needle cylinder through a screw.

2. The stool sampler of claim 1, wherein the syringe has a scale on the outside thereof for measuring the volume of the stool sample drawn therein.

3. The feces sampler according to claim 1, characterized in that the needle head I is used for extracting solid feces, and the needle head is in a shape of a straight cylinder, so that resistance in feces extraction can be reduced, and easy and simple extraction can be realized; the second needle head is used for extracting liquid excrement, and the needle head is conical, so that compared with the first needle head, the opening is reduced, the surface tension is increased, and the dropping of the excrement is effectively reduced.

4. The stool sampler of claim 1, wherein the needle is fixed to the barrel by a screw and is closely attached to the barrel.

5. A stool sampler according to claim 1, characterized in that: and (6) aseptic packaging of the sampler.

6. A stool sampler according to claim 1, characterized in that: the excrement sampler is made of low-temperature-resistant materials.

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