Disposable feces centrifugal collector

Abstract

The present invention relates to a disposable feces centrifugal collector, comprising a test tube, a filter and a dripping bucket, the filter comprising a hollow two-way connecting component and a collection rod, one end of the two-way connecting component connected to the test tube is provided with a collection rod, the end of the collection rod is provided with a collection spoon, the two-way connecting component and the collection rod are hollow inside, the collection rod has an array of micropores, the other end of the two-way connecting component is connected to the dripping bucket, the head end of the dripping bucket is a drip nozzle, the drip nozzle upper cover of the dripping bucket is provided with a closing cap, the dripping bucket is a vacuum tube, the tail end of the vacuum tube is provided with a sealing rubber plug, the hollow cavity of the two-way connecting component is provided with a puncture needle tube, the puncture needle tube is located in the middle of the hollow cavity of the two-way connecting component, the two-way connecting component has a sleeve tube section sleeved outside the puncture needle tube, the tail end of the dripping bucket can be guided and inserted into the sleeve tube section, and the puncture needle tube can pierce the sealing rubber plug to realize the connection between the inner cavity of the dripping bucket and the hollow cavity of the two-way connecting component. The advantages of separate storage of samples and simple and clean operation can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of biological detection equipment, in particular to a disposable feces centrifugal collector. Background Art

[0002] Stool testing is of great significance for the early screening of many diseases. By testing the hemoglobin in the stool, it is possible to screen whether the patient has a gastrointestinal bleeding disease. Therefore, stool testing has become a routine item for disease detection in many medical institutions.

[0003] Traditional feces collectors have only two parts: a test tube and a sealing cover. The sealing cover is equipped with a collection spoon, and the upper end of the sealing cover can be opened. When using, the collected material is placed in the test tube for dilution, and the upper end of the sealing cover is opened to drop the sample to be tested onto the test strip. This often results in impurities in the test tube not being filtered out, thus affecting the test results.

[0004] In order to solve the above technical problems, people have improved and designed a feces centrifugal collector, such as the "Disposable Feces Centrifugal Collector" disclosed in the Chinese patent document with the number CN201621336000.X (authorization publication number CN206208562U), whose main structure is: including a test tube, a filter and a dripping funnel, the test tube is connected to the dripping funnel through the filter; the filter includes a two-way connecting component, a collection rod and a collection spoon, the end of the two-way connecting component connected to the test tube is provided with a collection rod, and the end of the collection rod is provided with a collection spoon; the two-way connecting component and the collection rod are hollow inside, and the collection rod has an array of micropores, which are connected to the two-way connecting component and the inside of the collection rod, and the other end of the two-way connecting component is connected to the dripping funnel. However, the feces centrifugal collector of this structure uses a dripping funnel to drip the sample into the detection port to complete the detection, and it is not possible to store the sample separately well. Summary of the invention

[0005] Purpose of the invention: To overcome the defects of the prior art, the present invention provides a disposable feces centrifugal collector which can realize separate storage of samples and has simple and clean operation.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A disposable feces centrifugal collector comprises a test tube, a filter and a dripping bucket. The filter comprises a two-way connecting component, a collecting rod and a collecting spoon. The end of the two-way connecting component connected to the test tube is provided with a collecting rod, and the end of the collecting rod is provided with a collecting spoon. The two-way connecting component and the collecting rod are both hollow inside. The collecting rod has an array of micropores, and the micropores are connected to the two-way connecting component and the inside of the collecting rod. The other end of the two-way connecting component is connected to the dripping bucket. The head end of the dripping bucket is a drip nozzle, and the drip nozzle upper cover of the dripping bucket is provided with a closing cap. It is characterized in that: the dripping bucket is a vacuum tube, and a sealing rubber plug is provided in the tail end of the vacuum tube. A puncture needle tube is provided in the hollow cavity of the two-way connecting component, and the puncture needle tube is located in the middle of the hollow cavity of the two-way connecting component. The two-way connecting component has a sleeve tube section that is sleeved on the outside of the puncture needle tube. The tail end of the dripping bucket can be guided and inserted into the sleeve tube section, and the puncture needle tube can pierce the sealing rubber plug to realize the connection between the inner cavity of the dripping bucket and the hollow cavity of the two-way connecting component.

[0008] By adopting the above technical scheme, the tail end of the drip bucket is guided to be inserted into the sleeve tube section, and the puncture needle tube passes through the sealing rubber plug to realize the connection between the two-way connecting component and the vacuum tube, so that the test sample obtained after filtration is placed in the drip bucket. After the sampling is completed, the drip bucket is removed, and the rubber sealing plug closes automatically to achieve sealing, so as to achieve sealed preservation of the sample. The drip bucket adopts a vacuum tube design, which has the advantages of long sample storage time and good effect; in addition, the two-way connecting component adopts a puncture needle tube design, and the sample is not prone to dripping under the wider mouth design. Moreover, since the drip bucket is a vacuum tube and the tail end is a sealing rubber plug design, when the drip bucket is separated, it can better avoid sample leakage and is cleaner. The tail end of the drip bucket can be guided and inserted into the sleeve tube section, and the operation is more convenient.

[0009] Preferably, a movable guide thread is provided in the sleeve tube section, and the movable guide thread is screwed with a guide sealing plug, the guide sealing plug includes a nut seat with an external thread, the external thread of the nut seat corresponds to the movable guide thread, the nut seat has an axially through-going through cavity, a rubber block is embedded in the through-going cavity of the nut seat, a dovetail connecting block is provided at the tail end of the nut seat, and a dovetail connecting groove is provided at the tail end of the drip bucket, the dovetail connecting groove has a connecting port that passes through the circumferential side of the drip bucket, the guide sealing plug can be rotated at the sleeve tube section port to allow the dovetail connecting block to extend out of the sleeve tube section port so that the dovetail connecting groove of the drip bucket can be sleeved and detached from the dovetail connecting block, and the guide sealing plug is located at the sleeve tube section port to form a puncture needle tube shielded in the sleeve tube section. Under this structural design, the guide plug is connected to the drip bucket via the dovetail connecting block and the dovetail connecting groove. The guide sealing plug can be rotated to move along the thread by rotating the drip bucket, so that the puncture needle tube can puncture the rubber plug of the guide sealing plug and the sealing rubber plug. Before the sample centrifugation operation, the rubber plug of the guide sealing plug can seal the puncture needle tube. After the sample is separated, the above operation is completed to introduce the sample into the vacuum tube. After the sample is collected, the drip bucket is rotated to screw the guide sealing plug to the port of the sleeve tube section to seal the puncture needle tube again and detach the drip bucket, thereby ensuring safety and clean and hygienic operation.

[0010] Preferably, an inner extension limit ring is provided at the end of the sleeve tube section, the inner ring hole of the inner extension limit ring cooperates with the outer tube wall of the drip bucket for guiding, and the inner extension limit ring cooperates with the guide sealing plug for axial limiting. Under this structural design, the inner extension limit ring prevents the guide sealing plug from being screwed out of the sleeve tube section, thereby achieving reliable blocking of the puncture needle tube, and the inner extension limit ring guides the drip bucket.

[0011] Preferably, an anti-puncture baffle ring is provided at the tail end of the drip bucket, and the anti-puncture baffle ring of the drip bucket cooperates with the stopper of the sleeve tube section to ensure that the axial part of the tail end of the drip bucket is moved into the inner ring hole of the inner extension limit ring for positioning and the sealing rubber plug is not pierced by the puncture needle tube. The anti-puncture baffle ring is removably arranged at the tail end of the drip bucket, and after the anti-puncture baffle ring is removed, the drip bucket axially moves into the sleeve tube section, thereby ensuring that the puncture needle tube pierces the sealing rubber plug. With this structural design, in the initial stage of use, under the action of the anti-puncture baffle ring, the tail end of the drip bucket can be screwed into the sleeve tube section to realize reliable positioning of the drip bucket on the two-way connector, and at the same time, the puncture needle tube cannot pierce the sealing rubber plug, thereby ensuring the initial mixing and centrifugal operations. After the above operations are completed, the anti-puncture baffle ring is removed, so that the drip bucket can continue to move into the sleeve tube section until the puncture needle tube pierces the sealing rubber plug, thereby realizing the sample storage operation; the anti-puncture baffle ring realizes the positioning function during the operation, thereby making the operation simpler and more reliable; at the same time, removing the anti-puncture baffle ring indicates that the drip bucket is in use, thereby preventing the drip bucket from being activated again.

[0012] Preferably, the anti-puncture retaining ring comprises a retaining ring body with a fracture, the fracture constituting a guide opening for removing the retaining ring body, one end of the fracture of the retaining ring body having a removing gripping portion, and one axial end of the retaining ring body being provided with a plurality of circumferentially distributed connecting convex points, the connecting convex points connecting the retaining ring body and the drip bucket. Under this structural design, the anti-puncture retaining ring has a simple structure and is easy and convenient to remove.

[0013] Preferably, a funnel-shaped needle tube seat for fixing the puncture needle tube is provided in the bidirectional connection component, the liquid inlet port of the puncture needle tube is located at the bottom of the needle tube seat, and a filter membrane is provided on the side of the needle tube seat facing the collection rod. Under this structural design, the funnel-shaped needle tube seat facilitates the collection and outflow of liquid, and the filter membrane can achieve secondary blocking of fecal residue, thereby improving the filtering effect.

[0014] Preferably, the filter membrane is funnel-shaped, and a liquid storage space is provided between the filter membrane and the needle tube seat. This structural design has the advantage of a large filtering area, and the liquid storage space can store the filtered liquid, ensuring that the vacuum tube can reliably absorb the sample.

[0015] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereoscopic diagram of a disposable feces centrifugal collector according to a specific embodiment of the present invention;

[0017] Figure 2 It is a structural schematic diagram of a disposable feces centrifugal collector according to a specific embodiment of the present invention;

[0018] Figure 3 It is an exploded view of a disposable feces centrifugal collector according to a specific embodiment of the present invention;

[0019] Figure 4 An exploded view of a filter according to a specific embodiment of the present invention;

[0020] Figure 5 This is an exploded view of a drip bucket according to a specific embodiment of the present invention;

[0021] Figure 6 for Figure 2 A partial enlarged view of part A. DETAILED DESCRIPTION

[0022] See attached Figures 1 to 6The present invention discloses a disposable feces centrifugal collector, comprising a test tube 1, a filter 2 and a dripping bucket 3, wherein the filter 2 comprises a two-way connecting component 21, a collecting rod 22 and a collecting spoon 23, wherein the two-way connecting component 21 is screwed to the test tube 1 by a thread, and one end of the two-way connecting component 21 connected to the test tube 1 is provided with a collecting rod 22, and the end of the collecting rod 22 is provided with a collecting spoon 23, the two-way connecting component 21 and the collecting rod 22 are both hollow inside, and the collecting rod 22 is provided with an array of micropores 221, and the micropores 221 are connected to the two-way connecting component 21 and the inside of the collecting rod 22, and the other end of the two-way connecting component 21 is connected to the dripping bucket 3, and the head end of the dripping bucket 3 is a drip nozzle 31, and the drip nozzle 31 of the dripping bucket 3 is covered with a closing cap 32, wherein the closing cap 32 comprises a cap body 321 with an internal thread, and the cap body 3 21 is threadedly engaged with the drip bucket 3, and a conical rubber plug 322 is provided at the bottom center of the cap body 321. The conical rubber plug 322 is blocked in the drip port 311 of the drip bucket 3 to achieve sealing. In order to achieve vacuum preservation of the sample, the drip bucket 3 adopts a vacuum tube design, and a sealing rubber plug 33 is provided in the tail end of the vacuum tube. A needle tube seat 211 is provided in the hollow cavity of the two-way connecting component 21, and a puncture needle tube 212 is provided on the needle tube seat 211. The puncture needle tube 212 is located in the middle of the hollow cavity of the two-way connecting component 21. The two-way connecting component 21 has a sleeve tube section 213 that is sleeved on the outside of the puncture needle tube 212. The tail end of the drip bucket 3 can be guided and inserted into the sleeve tube section 213, and the puncture needle tube 212 can pierce the sealing rubber plug 33 to achieve communication between the inner cavity of the drip bucket 3 and the hollow cavity of the two-way connecting component 21. The tail end of the drip bucket 3 is guided to be inserted into the sleeve tube section 213, and the puncture needle tube 212 passes through the sealing rubber plug 33 to realize the connection between the two-way connecting component 21 and the vacuum tube, so that the test sample obtained after filtration is placed in the drip bucket 3. After the sampling is completed, the drip bucket 3 is removed, and the rubber sealing plug closes automatically to achieve sealing, so as to achieve the sealed preservation of the sample. The drip bucket 3 adopts a vacuum tube design, which has the advantages of long sample storage time and good effect; in addition, the two-way connecting component 21 adopts the puncture needle tube 212 design. Under the wider mouth design, the sample is not easy to drip, and because the drip bucket 3 is a vacuum tube and the tail end is designed with a sealing rubber plug 33, when the drip bucket 3 is separated, it can better avoid sample leakage and it is cleaner. The tail end of the drip bucket 3 can be guided and inserted into the sleeve tube section 213, which is more convenient to operate.

[0023] The sleeve tube section 213 is provided with a movable guide thread 2131, and the movable guide thread 2131 is screwed with a guide seal plug 214, and the guide seal plug 214 includes a nut seat 2141 with an external thread, and the external thread of the nut seat 2141 corresponds to the movable guide thread 2131. The nut seat 2141 has an axially through-going through cavity, and a rubber block 2142 is embedded in the through-going cavity of the nut seat 2141. The tail end of the nut seat 2141 is provided with a dovetail connection block 2143, a dovetail connection groove 34 is provided at the tail end of the drip bucket 3, and the dovetail connection groove 34 has a connection port that passes through the circumferential side of the drip bucket 3, and the guide sealing plug 214 can be rotated at the end of the sleeve tube section 213 to allow the dovetail connection block 2143 to extend out of the end of the sleeve tube section 213 so that the dovetail connection groove 34 of the drip bucket 3 can be sleeved and detached from the dovetail connection block 2143, and the guide sealing plug 214 is located at the end of the sleeve tube section 213 to block the puncture needle tube 212 in the sleeve tube section 213. The guide plug is connected to the drip bucket 3 via the dovetail connection block 2143 and the dovetail connection groove 34. The guide plug 214 can be rotated to move along the thread by rotating the drip bucket 3, so that the puncture needle tube 212 punctures the rubber plug 2142 and the sealing rubber plug 33 of the guide plug 214. Before the sample centrifugation operation, the rubber plug 2142 of the guide plug 214 seals the puncture needle tube 212. After the sample is separated, the above operation is completed to achieve the introduction of the sample into the vacuum tube. After the sample is collected, the drip bucket 3 is rotated to rotate the guide plug 214 to the port of the sleeve tube section 213, so as to seal the puncture needle tube 212 again and detach the drip bucket 3, thereby ensuring safety and clean and hygienic operation. The threaded screwing action can make the puncture and withdrawal process of the puncture needle tube 212 smoother. Of course, as a feasible solution of the present invention, an external thread can be directly designed at the tail end of the drip bucket 3 to cooperate with the sleeve tube section 213, but the puncture needle tube 212 is directly exposed, which may easily bring safety hazards in the later waste treatment after being discarded.

[0024] In this specific embodiment, an inner extension limit ring 215 is provided at the end of the sleeve tube section 213. The inner extension limit ring 215 is integrally formed with the sleeve tube section 213. The inner ring hole of the inner extension limit ring 215 cooperates with the outer tube wall of the drip bucket 3. The inner extension limit ring 215 cooperates with the axial limit of the guide seal plug 214. Under this structural design, the inner extension limit ring 215 prevents the guide seal plug 214 from being screwed out of the sleeve tube section 213, thereby achieving reliable blocking of the puncture needle tube 212. In addition, the inner extension limit ring 215 guides the drip bucket 3.

[0025] In order to facilitate the processing and assembly of the filter 2, the two-way connecting component 21 is formed by assembling multiple components. The two-way connecting component 21 includes a first tubular component 21-1, a needle tube component 21-2 and a sleeve component 21-3. The first tubular component 21-1 is integrally formed with the collection rod 22. The first tubular component 21-1 has an external thread 21-11 for threading the test tube 1. The first tubular component 21-1 extends from the other end connected to the collection rod 22 with a plug-in step 21-12. 21-2 includes a cylindrical tube 21-21, a needle tube seat 211 is formed in the cylindrical tube 21-21, and the puncture needle is fixed on the needle tube seat 211. The cylindrical tube 21-21 is sleeved on the plug-in step portion 21-12 of the first cylindrical component 21-1. The sleeve component 21-3 includes a sleeve component body 21-31 formed in one piece with a sleeve tube section 213 and an inner extension limit ring 215. The tail end of the sleeve component body 21-31 extends with an inner step sleeve 21-32 sleeved outside the cylindrical tube 21-21. This design facilitates the processing and molding of each part. The guide sealing plug 214 can be pre-installed in the sleeve tube section 213 and screwed at the port of the sleeve tube section 213 to allow the dovetail connection block 2143 to extend out of the sleeve tube section 213 port.

[0026] In order to prevent the vacuum tube from failing due to the drip bucket 3 being screwed in by mistake, the following structural design is adopted: an anti-puncture baffle ring 35 is provided at the tail end of the drip bucket 3; the anti-puncture baffle ring 35 of the drip bucket 3 cooperates with the stopper of the sleeve tube section 213 to ensure that the axial part of the tail end of the drip bucket 3 is moved into the inner ring hole of the inner extension limit ring 215 for positioning and the sealing rubber plug 33 is not pierced by the puncture needle tube 212; the anti-puncture baffle ring 35 is removably arranged at the tail end of the drip bucket 3, and after the anti-puncture baffle ring 35 is removed, the drip bucket 3 is axially moved into the sleeve tube section 213, thereby ensuring that the puncture needle tube 212 pierces the sealing rubber plug 33. In the initial stage of use, under the action of the anti-puncture baffle ring 35, the tail end part of the drip bucket 3 can be screwed into the sleeve tube section 213 to realize that the drip bucket 3 is reliably positioned on the two-way connector. At the same time, the puncture needle tube 212 cannot pierce the sealing rubber plug 33, ensuring the initial mixing and centrifugation operations. After the above operations are completed, the anti-puncture baffle ring 35 is removed, so that the drip bucket 3 can continue to move into the sleeve tube section 213 until the puncture needle tube 212 pierces the sealing rubber plug 33, thereby realizing the sample storage operation; the anti-puncture baffle ring 35 realizes the positioning during operation, thereby making the operation simpler and more reliable; at the same time, removing the anti-puncture baffle ring 35 indicates that the drip bucket 3 is in use, thereby preventing the drip bucket 3 from being activated again.

[0027] The anti-puncture retaining ring 35 comprises a retaining ring body 352 with a fracture 351, the fracture 351 constitutes a guide opening for removing the retaining ring body 352, one end of the fracture 351 of the retaining ring body 352 has a removal gripping portion 3521, the removal gripping portion 3521 can be appropriately designed with anti-slip and warping designs to facilitate better gripping of the removal gripping portion 3521, and one axial end of the retaining ring body 352 is provided with a plurality of circumferentially distributed connection convex points 353, the connection convex points 353 connect the retaining ring body 352 and the drip bucket 3. The anti-puncture retaining ring 35 has a simple structure and is easy and convenient to remove.

[0028] In addition, a funnel-shaped needle tube seat 211 is provided in the bidirectional connection component 21 for fixing the puncture needle tube 212, the liquid inlet port of the puncture needle tube 212 is located at the bottom of the needle tube seat 211, and a filter membrane 216 is provided on the side of the needle tube seat 211 facing the collection rod 22. The funnel-shaped needle tube seat 211 facilitates the gathering and outflow of liquid, and the filter membrane 216 can achieve secondary blocking of feces residue, thereby improving the filtering effect.

[0029] The filter membrane 216 is funnel-shaped, and a liquid storage space 217 is provided between the filter membrane 216 and the needle tube seat 211. The funnel-shaped filter membrane 216 has the advantage of a large filtering area, and the liquid storage space 217 can store the filtered liquid, ensuring that the vacuum tube can reliably absorb the sample.

Claims

1. A disposable feces centrifugal collector, comprising a test tube, a filter and a dripping funnel, wherein the filter comprises a two-way connecting component, a collecting rod and a collecting spoon, wherein one end of the two-way connecting component connected to the test tube is provided with a collecting rod, wherein the end of the collecting rod is provided with a collecting spoon, wherein the inside of the two-way connecting component and the collecting rod are both hollow, wherein the collecting rod has an array of micropores, wherein the micropores are connected to the two-way connecting component and the inside of the collecting rod, wherein the other end of the two-way connecting component is connected to the dripping funnel, wherein the head end of the dripping funnel is a drip nozzle, wherein the drip nozzle of the dripping funnel is covered with a closing cap, wherein: The drip bucket is a vacuum tube, and a sealing rubber plug is provided in the tail end of the vacuum tube. The hollow cavity of the two-way connecting component is provided with a puncture needle tube, which is located in the middle of the hollow cavity of the two-way connecting component. The two-way connecting component has a sleeve tube section sleeved outside the puncture needle tube, and the tail end of the drip bucket can be guided and inserted into the sleeve tube section, and the puncture needle tube can pierce the sealing rubber plug to realize the connection between the inner cavity of the drip bucket and the hollow cavity of the two-way connecting component. A movable guide thread is provided in the sleeve tube section, and the movable guide thread is screwed with a guide sealing plug, the guide sealing plug includes a nut seat with an external thread, the external thread of the nut seat corresponds to the movable guide thread, the nut seat has an axially penetrating through cavity, a rubber plug is embedded in the through cavity of the nut seat, a dovetail connecting block is provided at the tail end of the nut seat, a dovetail connecting groove is provided at the tail end of the drip bucket, the dovetail connecting groove has a connecting port that passes through the circumferential side of the drip bucket, the guide sealing plug can be rotated at the sleeve tube section port to allow the dovetail connecting block to extend out of the sleeve tube section port so that the dovetail connecting groove of the drip bucket can be sleeved and detached from the dovetail connecting block, and the guide sealing plug is located at the sleeve tube section port to form a puncture needle tube shielded in the sleeve tube section; An inner extension limit ring is provided at the port of the sleeve tube section, the inner extension limit ring is integrally formed with the sleeve tube section, the inner ring hole of the inner extension limit ring is matched with the guide of the outer tube wall of the drip bucket, and the inner extension limit ring is matched with the axial limit of the guide sealing plug; an anti-puncture baffle ring is provided at the tail end of the drip bucket, the anti-puncture baffle ring includes a baffle ring body with a fracture, the fracture constitutes a guide port for removing the baffle ring body, one end of the fracture of the baffle ring body has a removal and pinching portion, one axial end of the baffle ring body is provided with a plurality of circumferentially distributed connecting protrusions, the connecting protrusions connect the baffle ring body and the drip bucket, the anti-puncture baffle ring of the drip bucket cooperates with the sleeve tube section stopper to form an axial part of the tail end of the drip bucket moving into the inner ring hole of the inner extension limit ring for positioning and the sealing rubber plug is not pierced by the puncture needle tube, the anti-puncture baffle ring is removably arranged at the tail end of the drip bucket, and after the anti-puncture baffle ring is removed, the drip bucket moves axially into the sleeve tube section, thereby forming the sealing rubber plug pierced by the puncture needle tube.

2. The disposable feces centrifugal collector according to claim 1, characterized in that: A funnel-shaped needle tube seat for fixing the puncture needle tube is arranged in the bidirectional connection component, the liquid inlet port of the puncture needle tube is located at the bottom of the needle tube seat, and a filter membrane is arranged on the side of the needle tube seat facing the collection rod.

3. The disposable feces centrifugal collector according to claim 2, characterized in that: The filter membrane is funnel-shaped, and a liquid storage space is provided between the filter membrane and the needle tube seat.

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