CN212807652U

CN212807652U - Fecal sample collection device with one-way valve

Info

Publication number: CN212807652U
Application number: CN202021594046.8U
Authority: CN
Inventors: 蔡志宇; 张小圆; 赵新慧
Original assignee: Shanghai Tellgen Diagnosis Technology Co ltd; Shanghai Tellgen Life Science Co ltd
Current assignee: Shanghai Tellgen Diagnosis Technology Co ltd; Shanghai Tellgen Life Science Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-03-26
Anticipated expiration: 2030-08-04

Abstract

The utility model relates to an excrement and urine sample collection system with check valve belongs to medical instrument technical field. The utility model comprises a sampling component, a mixing tube and a detecting tube, wherein the sampling component comprises a cap and a sampling rod fixed under the cap; the top of the mixing tube is provided with a through hole for the sampling rod to be placed in, diluent is arranged in the mixing tube, and the wall of the mixing tube is made of flexible material; the detection tube is connected below the mixing tube, a filter membrane is arranged on the upper portion of the detection tube, a water outlet is formed in the lower portion of the filter membrane, a check valve is arranged between the mixing tube and the detection tube and is a sealed check valve, the wall of the mixing tube is extruded, diluent penetrates through the filter membrane and enters the detection tube through the check valve, and the diluent entering the detection tube cannot flow back to the mixing tube. The utility model discloses a simplify excrement and urine collection system's structure, and this check valve can make this excrement and urine sample collection system in the filtering process, and the mixing pipe can not flow back to the sample liquid after the filtration, has improved operation convenience and has detected the accuracy.

Description

Fecal sample collection device with one-way valve

Technical Field

The utility model relates to the technical field of medical equipment, in particular to chemical examination device technical field specifically indicates an excrement and urine sample collection system with check valve.

Background

The fecal detection is one of clinical routine laboratory test items, for example, fecal occult blood is an early warning for digestive tract abnormality, and the detection of relevant indexes on fecal samples is of great significance for early screening of digestive tract malignant tumors (such as colorectal cancer, gastric cancer, polyp and adenoma).

In the excrement detection process, excrement sampling is usually carried out by means of a collection spoon/sampling rod, and then the collection spoon/rod after the sample collection is arranged in a disposable storage tube body matched with the collection spoon/rod, and is stored in a sealed mode so as to carry out subsequent detection operation. The collection, filtration and detection involve a plurality of devices and are complicated to operate. In the operation process, excrement residues are easy to block a pipettor and a detection instrument to cause liquid suction deviation, and turbidity change in reaction liquid or some non-specific adsorption in a system can be caused to interfere with a detection result, so that the final detection result is influenced. In addition, most detection operators are more exclusive to the operation of directly contacting the stool sample because of the particularity of the stool sample, and how to realize the non-contact stool operation in the detection process is also very important.

Therefore, there is a need for a sampling device to conveniently realize the collection of fecal samples, the preparation and detection of fecal sample liquid, and make the collection and detection of samples more convenient, accurate and sanitary.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at having overcome the shortcoming among the above-mentioned prior art, provide one kind and can be to the effective sampling of excrement and urine sample, the quick and sanitary preparation of excrement and urine sample liquid to and to wait to examine the sealed method of preserving of sample. Greatly simplifies the preparation and the preservation of the excrement sample liquid.

In order to achieve the above object, the present invention has the following configurations:

this faecal sample collection device with one-way valve comprises: the sampling component comprises a cap and a sampling rod fixed below the cap; the top of the mixing pipe is provided with a through hole for the sampling rod to be placed in, and diluent is arranged in the mixing pipe; the detecting tube, the detecting tube connect in mixing pipe below, this detecting tube upper portion is provided with the filter membrane, the filter membrane below is provided with the delivery port, the check valve sets up between mixing pipe and detecting tube, the diluent follow mixing pipe flow in through this check valve the detecting tube.

In the device for collecting the fecal sample with the one-way valve, the one-way valve is a one-way sealing valve, the one-way sealing valve is composed of a blocking piece, a spring fixed below the blocking piece and a fixing frame connected below the spring, and the fixing frame is fixed on the inner wall of the detection pipe.

In the excrement sample collection device with the one-way valve, the blocking piece is in a circular truncated cone shape and can block a water outlet with the one-way valve below the filter membrane.

In the device for collecting the fecal sample, at least two circular hollows are arranged in the fixing frame, and the diluent can pass through the circular hollows.

In the excrement sample collection device with the one-way valve, the mixing pipe body is a hose and is extruded, the volume of the mixing pipe is reduced, and diluent in the mixing pipe permeates through the filter membrane and enters the detection pipe.

In the excrement sample collection device with the one-way valve, the detection tube is detachable and is connected with the blending tube in a sealing manner.

In the excrement sample collection device with the one-way valve, the detection pipe is connected with the blending pipe in a buckling connection or threaded connection mode.

The excrement sample collecting device with the one-way valve comprises a sampling part, a mixing pipe and a detection pipe, wherein the sampling part comprises a cap and a sampling rod fixed below the cap; the top of the mixing tube is provided with a through hole for the sampling rod to be placed in, diluent is arranged in the mixing tube, and the wall of the mixing tube is made of flexible material; the detection tube is connected below the mixing tube, a filter membrane is arranged on the upper portion of the detection tube, a water outlet is formed in the lower portion of the filter membrane, a check valve is arranged between the mixing tube and the detection tube and is a sealed check valve, the wall of the mixing tube is extruded, diluent penetrates through the filter membrane and enters the detection tube through the check valve, and the diluent entering the detection tube cannot flow back to the mixing tube. The utility model discloses a simplify excrement and urine collection system's structure, promoted the operation convenience, ensured the accuracy of sample testing result, and this check valve can make this excrement and urine sample collection system in the filtering process, and what filter back waits to examine sample liquid can not flow back to the mixing pipe, has improved operation convenience and has detected the accuracy.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the fecal sample collecting device of the utility model;

FIG. 2 is a schematic flow chart of the fecal sample collection method of the utility model;

FIG. 3 is a schematic structural view of a check valve in the feces sample collection device of the utility model;

fig. 4 is an external view of the feces sample collection device of the utility model;

description of the symbols:

1, capping; 2, sampling rod; 3, uniformly mixing the mixture; 4, diluting liquid; 5, filtering the membrane; 6, detecting a tube; 7, sealing the cover; 8, a one-way valve; 9 a blocking member; 10 springs; 11 fixing the frame.

Detailed Description

In order to clearly understand the technical content of the present invention, the following embodiments are specifically mentioned.

Please refer to the embodiment shown in fig. 1, which is a schematic structural diagram of an embodiment of the fecal sample collecting device of the present invention, and fig. 4 is an external view corresponding to fig. 1.

In the embodiment, the fecal sample collecting device with the one-way valve comprises a sampling part, wherein the sampling part consists of a cap 1 and a sampling rod 2, and the bottom of the sampling rod 2 is provided with a threaded groove for sampling a fecal sample; the blending pipe 3 consists of a sample quantifying component and a blending cavity, a sample quantifying hole with the same diameter as the sampling rod 2 is arranged in the sample quantifying component, and diluent 4 is arranged in the blending pipe 3; the sampling rod 2 can be inserted into the diluent 4 of the blending pipe 3 through a sample quantifying hole; the detection tube 6 is connected below the blending tube 3 by threads, a filter membrane 5 is arranged on the upper portion of the detection tube 6, the filter precision of the filter membrane is 50 microns, a water outlet with the diameter of 0.6cm is arranged below the filter membrane 5, a one-way valve 8 is arranged below the water outlet, the one-way valve 8 is a sealed one-way valve, and the sealed one-way valve is composed of a blocking piece 9, a spring 10 connected below the blocking piece 9 and a fixing frame 11 connected below the spring 10.

In the method for collecting the fecal sample with the sealing cover by using the preferred device, the diameter of the water outlet can be 0.4cm or 0.8 cm.

The method for collecting a stool sample by using the device of the embodiment, as shown in fig. 2, comprises the following steps:

(A) collecting a stool sample by using a sampling rod;

(B) inserting the sampling rod into a mixing tube, and mixing the excrement sample with the diluent in the mixing tube;

(C) and extruding the pipe wall of the mixing pipe to make the sample to be detected penetrate through the filter membrane and enter the detection pipe through the one-way valve.

In the method for collecting a stool sample with a one-way valve using the preferred device, the step (a) is specifically as follows: the sampling component consists of a cap 1 and a sampling rod 2, the bottom of the sampling rod 2 is provided with a thread groove, and sampled excrement can be embedded in the thread groove so that the thread groove is filled with the excrement;

in the method for collecting a stool sample with a one-way valve using the preferred device, the step (B) is specifically as follows: a sample quantifying component in the blending component is provided with a sample quantifying hole with the same diameter as the sampling rod 2, and the upper part of the sample quantifying hole is a cavity with the diameter larger than that of the sampling rod; the sampling rod 2 after the excrement sample is collected is inserted into the sample quantifying hole, excrement which is only embedded in the thread groove can enter the mixing pipe through the sample quantifying hole, and redundant excrement is left in the cavity at the upper part of the sample quantifying component, so that uniform and quantitative excrement sample collection is realized. The sampling component and the mixing tube 3 are mutually fixed through threads, and the top of the mixing tube 3 and the top of the mixing component are sealed. The mixing method comprises the steps of vibrating and mixing the excrement sample and the diluent 4, then inverting the excrement sample collection device, and centrifugally rotating at the rotating speed of 3000r/min for 10 minutes to enable excrement impurities to be precipitated downwards, so that the phenomenon that a filter membrane 5 is blocked during filtering to influence the filtering effect is avoided, and meanwhile, the probability that a detection instrument is blocked or liquid taking is inaccurate due to the fact that a small amount of excrement particles are carried in the filtered sample to be detected can be reduced.

In the method for collecting the fecal sample by using the preferred device, when the filtration precision of the filter membrane 5 is 50 μm and the time is 10 minutes, the centrifugal rotation speed can be 1000r/min, 5000r/min and 10000 r/min; when the rotating speed is 3000r/min and the filtering precision is 50 μm, the time can be 5 minutes or 15 minutes; the filtration precision of the filter membrane 5 can also be selected to be 100 μm, 20 μm or 10 μm.

In the method for collecting a stool sample with a one-way valve using the preferred device, the step (C) is specifically as follows: the mixing tube 3 is extruded, the volume of the mixing tube 3 is reduced, a sample to be detected pushes up a blocking piece 9 in a check valve 8 towards a filter membrane 5 which penetrates through the filter precision to be 50 microns, a spring 10 is compressed and deformed, the sample to be detected enters a detection tube 6 through the check valve 8, when the pressure in the mixing tube 3 is equal to or less than the pressure in the detection tube 6, the spring 10 is restored to the original state, the blocking piece 9 blocks a water outlet below the filter membrane 5, the sample to be detected in the detection tube 6 cannot flow back to the mixing cavity 3, and the filtered sample to be detected is stored in the detection tube 6. .

Above-mentioned excrement and urine sampling method is easy and simple to handle, from the storage of excrement and urine sampling to sample liquid and prepare, only needs this utility model's excrement and urine sample collection system alright completion, has retrencied sampling and sample liquid by a wide margin and has prepared the flow and increased the convenience of operation. The whole process of the detection personnel does not need to contact the excrement, the detection personnel is clean and sanitary, and the danger of infectious diseases infected by the excrement is also avoided. Through realize mixing and filtering in sealed excrement and urine sample sampling device, the in-process does not contact external environment, increases substantially the accuracy of testing result. In addition, the liquid to be detected of the sample of the excrement sample collecting device is convenient for subsequent detection, and the excrement sample collecting device is provided with a one-way valve, so that the filtered sample to be detected can not flow back to the mixing pipe, convenience is provided for subsequent detection, and the detection accuracy is improved.

In the practical application of the utility model, the use process is as follows:

taking the embodiment shown in fig. 1 and 3 as an example, an inspector holds a sampling component, and sequentially scribes in a grid shape in the uniform vertical direction and the horizontal direction to sample an excrement sample, wherein the excrement sample is adhered to the bottom end of a sampling rod, the sampling rod is inserted into a uniformly mixing component, the sample quantifying component is provided with a sample quantifying hole, the sample is embedded into a threaded groove at the bottom end of the sampling rod through the sample quantifying hole, and redundant excrement is left in an upper cavity of the sample quantifying component to realize accurate quantification of sampling; screwing a cap of the sampling part, hermetically connecting the sampling part with the blending part, and centrifugally and rotationally blending the excrement sample and the diluent in the blending part to disperse the excrement sample into the diluent to prepare a sample to be detected; and extruding the wall of the mixing cavity to reduce the volume of the mixing cavity, enabling the liquid to be detected to penetrate through the filter membrane and enter the detection tube through the one-way valve to complete the filtering step, realizing the residue separation of the sample to be detected, and storing the sample to be detected with the one-way valve in the detection tube after filtering.

Excrement and urine sample collection system adopts the integrated design, and the leakproofness is good, from sampling to the preparation of sample liquid, and whole journey is all accomplished in the device's inner chamber, has effectively stopped excrement and urine sample pollution mouth of pipe or operation panel etc. and has caused risks such as propagation of the germ in unclean, the drippage sample of body etc. and sample treatment accomplishes in the pipe, and the whole safety of detection operation, simple, contactless excrement and urine sample.

The mixing pipe and the detecting pipe of the fecal sample collecting device with the one-way valve are made of transparent materials, so that the collection, the mixing and the filtering processes can be visually seen, and convenience is increased for the operation of detection personnel.

Adopted this utility model's excrement and urine sample collection system with check valve still is provided with the check valve, can with waiting to examine after filtering to examine the sample and preserve in the detecting tube, can not flow back to the mixing pipe in, for later detection convenience and the accuracy that has improved the detection.

In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. A fecal sample collection device having a one-way valve comprising:

the sampling component comprises a cap and a sampling rod fixed below the cap;

the top of the mixing pipe is provided with a through hole for the sampling rod to be placed in, and diluent is arranged in the mixing pipe;

the detecting tube, the detecting tube connect in mixing pipe below, this detecting tube upper portion is provided with the filter membrane, the filter membrane below is provided with the delivery port, the check valve sets up between mixing pipe and detecting tube, the diluent follow mixing pipe flow in through this check valve the detecting tube.

2. The device for collecting a fecal sample according to claim 1 wherein the check valve is a one-way sealing valve consisting of a blocking member, a spring fixed under the blocking member and a fixing frame connected under the spring, the fixing frame is fixed on the inner wall of the detecting tube.

3. The fecal sample acquiring device having a one way valve according to claim 2 characterized in that the blocking member is cone shaped and blocks the water outlet below the filter membrane.

4. The device for collecting a fecal sample according to claim 2 wherein the holder has at least two circular openings through which the diluent can pass.

5. The device for collecting a fecal sample according to claim 1 wherein the mixing tube body is a flexible tube, the mixing tube body is squeezed, the mixing tube volume is reduced, and the diluent in the mixing tube enters the detection tube through the filter membrane.

6. The device for collecting a fecal sample having a check valve as claimed in claim 1 wherein the detection tube is detachable and is hermetically connected to the mixing tube.

7. The fecal sample collecting device with a one-way valve according to claim 6 characterized in that the connection of the detecting tube and the mixing tube is a snap connection or a screw connection.