CN110806333B - Disposable feces centrifugal collector - Google Patents
Disposable feces centrifugal collector Download PDFInfo
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- CN110806333B CN110806333B CN201911014222.8A CN201911014222A CN110806333B CN 110806333 B CN110806333 B CN 110806333B CN 201911014222 A CN201911014222 A CN 201911014222A CN 110806333 B CN110806333 B CN 110806333B
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- needle tube
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- puncture needle
- tube
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- 210000003608 fece Anatomy 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 230000002457 bidirectional effect Effects 0.000 claims description 28
- 238000001914 filtration Methods 0.000 claims description 15
- 239000012528 membrane Substances 0.000 claims description 12
- 230000002550 fecal effect Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 description 16
- 230000000903 blocking effect Effects 0.000 description 10
- 238000001514 detection method Methods 0.000 description 7
- 238000005119 centrifugation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 208000012671 Gastrointestinal haemorrhages Diseases 0.000 description 1
- 102000001554 Hemoglobins Human genes 0.000 description 1
- 108010054147 Hemoglobins Proteins 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 208000030304 gastrointestinal bleeding Diseases 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
本发明涉及一种一次性粪便离心采集器，包括试管、过滤器和滴斗，过滤器包括中空的双向连接部件、采集杆，双向连接部件与试管连接的一端设采集杆，采集杆末端有采集勺，双向连接部件及采集杆内部均为中空，采集杆上具有阵列的微孔，双向连接部件的另一端连接滴斗，滴斗的头端为滴嘴，滴斗的滴嘴上盖设有封闭帽，滴斗为真空管，真空管尾端口内设有密封橡胶塞，双向连接部件的中空腔内设有穿刺针管，穿刺针管位于双向连接部件的中空腔中部，双向连接部件具有套于穿刺针管外的套接管段，滴斗尾端可引导的插于套接管段内，且穿刺针管可刺穿密封橡胶塞实现滴斗内腔与双向连接部件的中空腔联通。可实现样品单独存储，且操作简洁干净的优点。
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 both 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, 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, 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
The invention relates to the technical field of biological detection equipment, in particular to a disposable feces centrifugal collector.
Background
Fecal testing has great significance for early screening of many diseases, and by testing hemoglobin in the feces, it is possible to screen whether a patient has a disease of gastrointestinal bleeding, so fecal testing has become a routine item for many medical institutions to detect diseases.
The traditional fecal collector has only two parts, namely a test tube and a sealing cover, the sealing cover is internally provided with a collecting spoon, and the upper end of the sealing cover can be opened. When in use, the collected matter is put into a test tube for dilution, the upper end of the sealing cover is opened, and the sample to be detected is dripped onto the detection strip. Often, impurities in the test tube are not filtered, thereby influencing the detection result.
In order to solve the technical problems, a feces centrifugal collector is improved and designed, and the feces centrifugal collector mainly comprises a test tube, a filter and a dropping funnel, wherein the test tube is connected with the dropping funnel through the filter, the filter comprises a bidirectional connecting part, a collecting rod and a collecting spoon, one end of the bidirectional connecting part, which is connected with the test tube, is provided with the collecting spoon, the tail end of the collecting rod is provided with the collecting spoon, the inside of the bidirectional connecting part and the inside of the collecting rod are hollow, the collecting rod is provided with an array of micropores, the micropores are communicated with the inside of the bidirectional connecting part and the inside of the collecting rod, and the other end of the bidirectional connecting part is connected with the dropping funnel. But the excrement centrifugal collector of this structure adopts the dropping funnel to drop into the detection mouth with the sample and accomplishes the detection, and can't fine realization deposit the sample alone.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the disposable fecal centrifugal collector which can realize independent storage of samples and is concise and clean to operate.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a disposable excrement and urine centrifugation collector, includes test tube, filter and drip chamber, and the filter includes two-way connecting piece, collection pole and collection spoon, and the one end that two-way connecting piece and test tube are connected is equipped with the collection pole, the collection pole end is equipped with the collection spoon, and two-way connecting piece and collection pole are inside to be hollow, have the micropore of array on the collection pole, micropore and two-way connecting piece and the inside intercommunication of collection pole, and drip chamber is connected to the other end of two-way connecting piece, and the head end of drip chamber is the nozzle, and the nozzle upper cover of drip chamber is equipped with the closing cap, wherein the drip chamber be the vacuum tube, be equipped with the sealing rubber stopper in the vacuum tube tail port, be equipped with the puncture needle tube in the cavity of two-way connecting piece, the puncture needle tube is located the cavity middle part of two-way connecting piece, and two-way connecting piece has the sleeve joint pipe section outside the puncture needle tube, the end guidable of drip chamber is in the sleeve joint pipe section, and puncture needle tube can puncture sealing rubber stopper realize the hollow chamber UNICOM of drip chamber and two-way connecting piece.
According to the technical scheme, the tail end of the dropping funnel is guided to be inserted into the sleeved pipe section, the puncture needle tube penetrates through the sealing rubber plug to achieve the communication between the two-way connection part and the vacuum tube, the detection sample obtained after filtration is placed into the dropping funnel, after sampling is completed, the dropping funnel is pulled out, the rubber sealing plug is closed by itself to achieve sealing, the sealing preservation of the sample is achieved, the dropping funnel adopts the vacuum tube design, the sample storage time is long, the effect is good, in addition, the two-way connection part adopts the puncture needle tube design, the sample is not easy to leak under the wider mouth design, and the tail end is of the sealing rubber plug design, so that the sample can be better prevented from leaking during the operation of separating the dropping funnel, the dropping funnel tail end can be guided to be inserted into the sleeved pipe section, and the operation is more convenient.
Preferably, the movable guide screw thread is arranged in the sleeved pipe section, the movable guide screw thread is rotatably provided with a guide plugging block, the guide plugging block comprises a nut seat with external screw threads, the external screw threads of the nut seat are correspondingly matched with the movable guide screw thread, the nut seat is provided with a through cavity which is axially through, the nut seat is internally embedded with a rubber plugging block, the tail end of the nut seat is provided with a dovetail connecting block, the tail end of the dropping funnel is provided with a dovetail connecting groove, the dovetail connecting groove is provided with a connecting port which is through the circumferential side surface of the dropping funnel, the guide plugging block can be screwed at the port of the sleeved pipe section for the dovetail connecting block to extend out of the port of the sleeved pipe section for sleeving and uncoupling the dovetail connecting block, and the guide plugging block is positioned in the sleeved pipe section port to form a puncture needle tube to be blocked in the sleeved pipe section. Under this structural design, guide blocks up and the drip chamber realize being connected through forked tail connecting block and forked tail spread groove, rotate the drip chamber and can rotate guide and seal up the stopper and follow the screw thread and remove, thereby realize puncture needle tubing puncture guide seal up's rubber plug and sealing rubber stopper, before the sample centrifugation operation, guide seal up's rubber plug realizes the shutoff to puncture needle tubing, after the sample separation is made, accomplish above-mentioned operation in order to reach the sample and introduce the vacuum tube, after sample collection is accomplished, rotatory drip chamber, will guide seal up and revolve to cup joint the pipe section port, realize the shutoff once more to puncture needle tubing, and break away from the drip chamber, thereby guarantee safety and operation clean and tidy health.
Preferably, the port of the sleeved pipe section is provided with an inner extension limiting ring, an inner ring hole of the inner extension limiting ring is in guide fit with the outer pipe wall of the drip chamber, and the inner extension limiting ring is in axial limit fit with the guide plugging plug. Under this structural design, the inner extension limiting ring avoids guiding the shutoff stopper to unscrew out the sleeve joint pipeline section, realizes the reliable shutoff to puncture needle tubing, and the guide to the dropping funnel is realized to the inner extension limiting ring in addition.
Preferably, the tail end of the dropping funnel is provided with a puncture-preventing baffle ring, the puncture-preventing baffle ring of the dropping funnel is matched with the stop of the sleeved pipe section to form a position in the inner ring hole of the inner extension limiting ring, the sealing rubber plug is not pierced by the puncture needle tube, the puncture-preventing baffle ring is arranged at the tail end of the dropping funnel in a removable manner, and the puncture-preventing baffle ring is removed and then moves into the sleeved pipe section along with the axial direction of the dropping funnel, so that the puncture needle tube pierces the sealing rubber plug. According to the structure design, at the initial stage of use, under the action of the puncture-preventing baffle ring, the tail end part of the drip chamber can be screwed into the sleeve joint pipe section to reliably position the drip chamber on the bidirectional connector, meanwhile, the puncture-preventing baffle ring cannot puncture the sealing rubber plug, so that the mixing and centrifugal operation at the earlier stage are guaranteed, after the operation is finished, the puncture-preventing baffle ring is removed, the drip chamber can continuously move into the sleeve joint pipe section until the puncture-preventing needle tube punctures the sealing rubber plug, the sample storage operation is realized, the puncture-preventing baffle ring realizes the positioning effect during the operation, so that the operation is simpler and more reliable, and meanwhile, the puncture-preventing baffle ring is removed, namely the drip chamber is prompted to be used, and the secondary starting prevention effect is realized on the drip chamber.
Preferably, the puncture-preventing baffle ring comprises a baffle ring main body with a fracture, the fracture forms a guide opening for removing the baffle ring main body, one end of the fracture of the baffle ring main body is provided with a removing holding part, one axial end of the baffle ring main body is provided with a plurality of connecting convex points distributed circumferentially, and the connecting convex points are connected with the baffle ring main body and the dropping funnel. Under the structural design, the puncture-preventing baffle ring has a simple structure, and the uncovering operation is simple and convenient.
Preferably, a funnel-shaped needle tube seat for fixing the puncture needle tube is arranged in the bidirectional connecting part, a liquid inlet port of the puncture needle tube is positioned at the bottom of the needle tube seat, and a filtering membrane is arranged on one side of the needle tube seat, facing the collecting rod. Under this structural design, the gathering outflow of funnel-shaped needle tubing seat convenience liquid, the filtration membrane can realize the secondary of excrement sediment and block, improves the filter effect.
Preferably, the filtering membrane is funnel-shaped, and a liquid storage interval is arranged between the filtering membrane and the needle tube seat. Under this structural design, have the advantage that filtration area is big, the storage of filtrate can be realized to the stock solution interval, guarantees that the vacuum tube can reliably absorb the sample.
The invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a perspective view of a disposable fecal centrifugation harvester according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a disposable fecal centrifugation harvester according to an embodiment of the present invention;
FIG. 3 is an exploded view of a disposable fecal centrifugation harvester according to an embodiment of the present invention;
FIG. 4 is an exploded view of a filter according to an embodiment of the present invention;
FIG. 5 is an exploded view of a bucket according to an embodiment of the present invention;
fig. 6 is a partial enlarged view of a portion a in fig. 2.
Detailed Description
Referring to fig. 1-6, the disposable fecal centrifugation collector disclosed by the invention comprises a test tube 1, a filter 2 and a drip chamber 3, wherein the filter 2 comprises a bidirectional connecting component 21, a collecting rod 22 and a collecting spoon 23, the bidirectional connecting component 21 is screwed with the test tube 1, the collecting rod 22 is arranged at one end of the bidirectional connecting component 21 connected with the test tube 1, the collecting spoon 23 is arranged at the tail end of the collecting rod 22, the bidirectional connecting component 21 and the inside of the collecting rod 22 are hollow, the collecting rod 22 is provided with micro holes 221 in an array, the micro holes 221 are communicated with the bidirectional connecting component 21 and the inside of the collecting rod 22, the other end of the bidirectional connecting component 21 is connected with the drip chamber 3, the head end of the drip chamber 3 is a drip chamber 31, the drip chamber 31 of the drip chamber 3 is provided with a sealing cap 32, the sealing cap 32 comprises a cap main body 321 with internal threads, the cap main body 321 is screwed on the drip chamber 3, the center of the inner bottom of the cap main body 321 is provided with a conical rubber plug 322, the conical rubber plug 322 is sealed in a drip opening 311 of the drip chamber 3, in order to realize vacuum storage of a sample, the end 3 is provided with a micro holes 221 in an array, the micro holes 221 is communicated with the end part 21 is arranged in the hollow needle tube section 212, the hollow needle tube section is sleeved with the hollow needle tube section 212, and the hollow needle tube section is connected with the hollow needle tube section 212 is sleeved with the hollow needle tube section 21, and the hollow needle tube section is provided with the hollow needle tube section 21 is connected with the hollow needle tube section 21. The tail end of the dropping funnel 3 is guided to be inserted into the sleeving pipe section 213, the puncture needle tube 212 penetrates through the sealing rubber plug 33 to realize the communication between the bidirectional connecting part 21 and the vacuum pipe, the detection sample obtained after filtration is placed into the dropping funnel 3, after sampling is completed, the dropping funnel 3 is pulled out, the rubber sealing plug is closed by itself to realize sealing, the sealing preservation of the sample is realized, the dropping funnel 3 adopts the vacuum pipe design, the advantages of long sample storage time and good effect are realized, in addition, the bidirectional connecting part 21 adopts the puncture needle tube 212 design, the sample is not easy to have the phenomenon of dripping under the wider port design, in addition, the tail end is designed for the sealing rubber plug 33, the sample leakage can be better avoided when the dropping funnel 3 is separated, the tail end of the dropping funnel 3 can be guided to be inserted into the sleeving pipe section 213, and the operation is more convenient.
The sleeve pipe section 213 is internally provided with a movable guide thread 2131, the movable guide thread 2131 is rotatably provided with a guide sealing plug 214, the guide sealing plug 214 comprises a nut seat 2141 with external threads, the external threads of the nut seat 2141 are correspondingly matched with the movable guide thread 2131, the nut seat 2141 is provided with an axially through cavity, a rubber plug 2142 is embedded in the through cavity of the nut seat 2141, the tail end of the nut seat 2141 is provided with a dovetail connecting block 2143, the tail end of the drip chamber 3 is provided with a dovetail connecting groove 34, the dovetail connecting groove 34 is provided with a connecting port penetrating through the circumferential side surface of the drip chamber 3, the guide sealing plug 214 can be screwed at the port of the sleeve pipe section 213 to enable the dovetail connecting block 2143 to extend out of the port of the sleeve pipe section 213 for sleeving and uncoupling the dovetail connecting block 2143, and the guide sealing plug 214 is positioned at the port of the sleeve pipe section 213 to form a puncture needle tube 212 to be blocked in the sleeve pipe section 213. The guide blocking and the dropping funnel 3 are connected through the dovetail connecting block 2143 and the dovetail connecting groove 34, the dropping funnel 3 can rotate to guide the blocking 214 to move along the threads, so that the puncture needle tube 212 punctures the rubber blocking 2142 of the guide blocking 214 and the sealing rubber plug 33, before the sample is centrifugally operated, the rubber blocking 2142 of the guide blocking 214 seals the puncture needle tube 212, after the sample is separated and manufactured, the operation is completed so as to lead the sample into a vacuum tube, after the sample is collected, the dropping funnel 3 is rotated, the guide blocking 214 is screwed to the port of the sleeving tube section 213, the puncture needle tube 212 is plugged again, and the dropping funnel 3 is separated, so that the safety and the operation cleanliness and the sanitation are ensured. The threading action can make the penetration and withdrawal process of the penetration needle 212 smoother. Of course, as a feasible scheme of the invention, the external thread can be directly designed at the tail end of the dropping funnel 3 to be matched with the sleeving pipe section 213, but the puncture needle tube 212 is directly exposed, so that potential safety hazards are easily brought to the later waste treatment after the dropping.
In this embodiment, an inner extending limiting ring 215 is disposed at the port of the sleeve pipe segment 213, the inner extending limiting ring 215 is integrally formed with the sleeve pipe segment 213, the inner ring hole of the inner extending limiting ring 215 is in guiding fit with the outer pipe wall of the drip chamber 3, and the inner extending limiting ring 215 is in axial limiting fit with the guiding plugging block 214. Under this structural design, the inner extension limiting ring 215 avoids guiding the blocking plug 214 to unscrew from the sleeve joint pipe section 213, realizes reliable blocking of the puncture needle tube 212, and in addition, the inner extension limiting ring 215 realizes guiding of the drip chamber 3.
For the convenience of processing and assembling the filter 2, the bidirectional connecting component 21 is formed by assembling a plurality of components, the bidirectional connecting component 21 comprises a first cylindrical component 21-1, a needle tube component 21-2 and a sleeve component 21-3, the first cylindrical component 21-1 and the collecting rod 22 are integrally formed, the first cylindrical component 21-1 is provided with an external thread 21-11 for the screw thread of the test tube 1 to be screwed, the other end of the first cylindrical component 21-1, which is opposite to the end connected with the collecting rod 22, extends to form a splicing step part 21-12, the needle tube component 21-2 comprises a cylindrical tube 21-21, a needle tube seat 211 is integrally formed in the cylindrical tube 21-21, a puncture needle is fixed on the needle tube seat 211, the cylindrical tube 21-21 is sleeved on the splicing step part 21-12 of the first cylindrical component 21-1, the sleeve component 21-3 comprises a sleeve component main body 21-31 integrally formed by the sleeve tube section 213 and an internal extending limiting ring 215, and the tail end of the sleeve component main body 21-31 extends to form an internal step 21-32 sleeved outside the cylindrical tube 21-21. The design facilitates the processing and forming of each part, and the guide sealing plug 214 can be pre-installed in the sleeve pipe section 213 and screwed at the port of the sleeve pipe section 213 for the dovetail connection block 2143 to extend out of the port of the sleeve pipe section 213.
In order to prevent the vacuum tube from being disabled due to the error screwing in the dropping funnel 3, the following structural design is adopted, the tail end of the dropping funnel 3 is provided with a puncture-preventing baffle ring 35, the puncture-preventing baffle ring 35 of the dropping funnel 3 is matched with the sleeve pipe section 213 in a stop way to form the inner ring hole of the inner extension limiting ring 215 for positioning the tail end axial part of the dropping funnel 3, the sealing rubber plug 33 is not pierced by the puncture needle tube 212, the puncture-preventing baffle ring 35 is arranged at the tail end of the dropping funnel 3 in a removable way, and the puncture-preventing baffle ring 35 moves into the sleeve pipe section 213 along with the axial direction of the dropping funnel 3 after being removed, so that the puncture needle tube 212 pierces the sealing rubber plug 33. At the initial stage of use, under the action of the puncture-preventing baffle ring 35, the tail end part of the dropping funnel 3 is screwed into the sleeve joint pipe section 213 to realize the reliable positioning of the dropping funnel 3 on the bidirectional connector, meanwhile, the puncture needle tube 212 cannot puncture the sealing rubber plug 33, the mixing and centrifugal operation at the earlier stage are ensured, after the operation is finished, the puncture-preventing baffle ring 35 is uncovered, so that the dropping funnel 3 can continuously move into the sleeve joint pipe section 213 until the puncture needle tube 212 punctures the sealing rubber plug 33 to realize the sample storage operation, the puncture-preventing baffle ring 35 realizes the positioning function during the operation, so that the operation is simpler and more reliable, and meanwhile, the puncture-preventing baffle ring 35 is uncovered to prompt the dropping funnel 3 to be used, so as to play a role in preventing secondary starting of the dropping funnel 3.
The anti-puncture retaining ring 35 comprises a retaining ring main body 352 with a fracture 351, the fracture 351 forms a guide opening for removing the retaining ring main body 352, one end of the fracture 351 of the retaining ring main body 352 is provided with a removing pinching portion 3521, the removing pinching portion 3521 can be properly designed in an anti-skid mode and a warping mode so as to facilitate better pinching and removing pinching portion 3521, one axial end of the retaining ring main body 352 is provided with a plurality of connecting protruding points 353 distributed in the circumferential direction, and the connecting protruding points 353 are connected with the retaining ring main body 352 and the dropping funnel 3. The puncture-preventing baffle ring 35 has a simple structure, and the uncovering operation is simple and convenient.
In addition, a funnel-shaped needle tube seat 211 for fixing the puncture needle tube 212 is provided in the bidirectional connecting member 21, a liquid inlet port of the puncture needle tube 212 is positioned at the bottom of the needle tube seat 211, and a filtering membrane 216 is provided at one side of the needle tube seat 211 facing the collecting rod 22. The funnel-shaped needle tube seat 211 facilitates the accumulation and outflow of liquid, and the filtering membrane 216 can realize the secondary blocking of the manure residues and improve the filtering effect.
The filtering membrane 216 is funnel-shaped, and a liquid storage space 217 is arranged between the filtering membrane 216 and the needle tube seat 211. The funnel-shaped filtering membrane 216 has the advantage of large filtering area, and the storage of filtrate can be realized to the stock solution interval 217, guarantees that the vacuum tube can reliably draw the sample.
Claims (3)
1. The disposable feces centrifugal collector comprises a test tube, a filter and a dropping funnel, wherein the filter comprises a bidirectional connecting component, a collecting rod and a collecting spoon, the collecting rod is arranged at one end of the bidirectional connecting component connected with the test tube, the collecting spoon is arranged at the tail end of the collecting rod, the bidirectional connecting component and the collecting rod are hollow, the collecting rod is provided with micropores in an array, the micropores are communicated with the bidirectional connecting component and the collecting rod, the other end of the bidirectional connecting component is connected with the dropping funnel, the head end of the dropping funnel is a dropping nozzle, a sealing cap is covered on the dropping nozzle of the dropping funnel, the disposable feces centrifugal collector is characterized in that the dropping funnel is a vacuum tube, a sealing rubber plug is arranged in a tail port of the vacuum tube,
The hollow cavity of the bidirectional connecting component is internally provided with a puncture needle tube, the puncture needle tube is positioned in the middle of the hollow cavity of the bidirectional connecting component, the bidirectional connecting component is provided with a sleeved pipe section sleeved outside the puncture needle tube, the tail end of the drip chamber can be inserted into the sleeved pipe section in a guiding way, the puncture needle tube can puncture a sealing rubber plug to realize the communication between the inner cavity of the drip chamber and the hollow cavity of the bidirectional connecting component,
The device comprises a sleeve pipe, a guide plug, a rubber plug, a dovetail connecting block, a connecting groove and a guide plug, wherein a movable guide thread is arranged in the sleeve pipe, the movable guide thread is rotatably provided with the guide plug, the guide plug comprises a nut seat with external threads, the external threads of the nut seat are correspondingly matched with the movable guide thread, the nut seat is provided with an axially through cavity, the rubber plug is embedded in the through cavity, the tail end of the nut seat is provided with the dovetail connecting block, the tail end of the drip pipe is provided with the dovetail connecting groove, the dovetail connecting groove is provided with a connecting port which is communicated with the circumferential side surface of the drip pipe, the guide plug can be rotated at the port of the sleeve pipe to enable the dovetail connecting block to extend out of the port of the sleeve pipe to be sleeved with and separated from the dovetail connecting block, and the guide plug is positioned at the port of the sleeve pipe to form a puncture needle tube and is shielded in the sleeve pipe;
The anti-puncture stop ring comprises a stop ring main body with a fracture, the fracture forms a guide opening for removing the stop ring main body, one end of the fracture of the stop ring main body is provided with a removing pinching part, one axial end of the stop ring main body is provided with a plurality of connecting convex points distributed circumferentially, the connecting convex points are connected with the stop ring main body and the drip chamber, the anti-puncture stop ring of the drip chamber is matched with the stop of the sleeved pipe section to form the inner ring hole of the inner extension stop ring to be positioned and the sealing rubber plug is not pierced by the puncture needle tube, and the anti-puncture stop ring is arranged at the tail end of the drip chamber in a removable manner and forms the puncture needle tube to pierce the sealing rubber plug along with the axial movement of the drip chamber into the pipe section after the anti-puncture stop ring is removed.
2. The disposable feces centrifugal collector of claim 1, wherein the two-way connecting part is internally provided with a funnel-shaped needle tube seat for fixing a puncture needle tube, a liquid inlet port of the puncture needle tube is positioned at the bottom of the needle tube seat, and a filtering membrane is arranged on one side of the needle tube seat facing the collecting rod.
3. The disposable fecal centrifugal collector of claim 2 wherein the filter membrane is funnel-shaped and a liquid storage space is provided between the filter membrane and the needle tube seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911014222.8A CN110806333B (en) | 2019-10-24 | 2019-10-24 | Disposable feces centrifugal collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911014222.8A CN110806333B (en) | 2019-10-24 | 2019-10-24 | Disposable feces centrifugal collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110806333A CN110806333A (en) | 2020-02-18 |
| CN110806333B true CN110806333B (en) | 2024-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911014222.8A Active CN110806333B (en) | 2019-10-24 | 2019-10-24 | Disposable feces centrifugal collector |
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| CN (1) | CN110806333B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114088442A (en) * | 2021-10-14 | 2022-02-25 | 怀化普德医疗科技有限责任公司 | A parasite egg sampling device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998149A (en) * | 2011-09-16 | 2013-03-27 | 江苏康健医疗用品有限公司 | Negative pressure urine collecting device |
| CN206208562U (en) * | 2016-12-07 | 2017-05-31 | 威海赛威医疗科技有限公司 | Disposable feces are centrifuged collector |
| CN211317777U (en) * | 2019-10-24 | 2020-08-21 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Disposable Fecal Centrifugal Collector |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252865A (en) * | 2011-06-14 | 2011-11-23 | 邱清芳 | Totally closed device for sampling and treating excrement for inspection |
| CN102564796A (en) * | 2012-02-24 | 2012-07-11 | 万华普曼生物工程有限公司 | Excrement collector |
| CN106840749A (en) * | 2017-01-19 | 2017-06-13 | 丁葆兰 | Disposable tumor in digestive tract fecal acquisition testing suit |
| CN209247393U (en) * | 2018-09-30 | 2019-08-13 | 厦门为正生物科技股份有限公司 | One kind adopting closet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998149A (en) * | 2011-09-16 | 2013-03-27 | 江苏康健医疗用品有限公司 | Negative pressure urine collecting device |
| CN206208562U (en) * | 2016-12-07 | 2017-05-31 | 威海赛威医疗科技有限公司 | Disposable feces are centrifuged collector |
| CN211317777U (en) * | 2019-10-24 | 2020-08-21 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | Disposable Fecal Centrifugal Collector |
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