CN110806332A - PBS (Poly Butylene succinate) collecting liquid injection type excrement sampler - Google Patents
PBS (Poly Butylene succinate) collecting liquid injection type excrement sampler Download PDFInfo
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- CN110806332A CN110806332A CN201911013935.2A CN201911013935A CN110806332A CN 110806332 A CN110806332 A CN 110806332A CN 201911013935 A CN201911013935 A CN 201911013935A CN 110806332 A CN110806332 A CN 110806332A
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- 239000007788 liquid Substances 0.000 title claims abstract description 41
- 238000002347 injection Methods 0.000 title claims abstract description 38
- 239000007924 injection Substances 0.000 title claims abstract description 38
- 229920002961 polybutylene succinate Polymers 0.000 title description 43
- 239000004631 polybutylene succinate Substances 0.000 title description 43
- -1 Poly Butylene succinate Polymers 0.000 title description 2
- 238000012360 testing method Methods 0.000 claims abstract description 53
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 26
- 239000012530 fluid Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 52
- 210000003608 fece Anatomy 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 12
- 239000000872 buffer Substances 0.000 claims description 10
- 210000002700 urine Anatomy 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 239000008055 phosphate buffer solution Substances 0.000 abstract description 11
- 238000013461 design Methods 0.000 description 23
- 238000001514 detection method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 230000002550 fecal effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 102000001554 Hemoglobins Human genes 0.000 description 1
- 108010054147 Hemoglobins Proteins 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 208000034158 bleeding Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
The invention relates to a PBS (phosphate buffer solution) collecting liquid injection type excrement sampler which comprises a test tube, a filter and a sample collecting tube, wherein the filter comprises a bidirectional connecting part, a collecting rod and a collecting spoon, the collecting rod is arranged at one end of the bidirectional connecting part, which is connected with the test tube, the tail end of the collecting rod is provided with the collecting spoon, the bidirectional connecting part and the collecting rod are both hollow, the collecting rod is provided with micropores in an array manner, the micropores are communicated with the bidirectional connecting part and the inside of the collecting rod, the other end of the bidirectional connecting part is connected with the sample collecting tube, the test tube is provided with a PBS collecting liquid injection joint, the PBS collecting liquid injection joint is communicated with a tube cavity of the. Realize the collector and be connected the back with the test tube in advance and put into PBS collecting fluid, have convenient operation's clean and tidy convenient advantage.
Description
Technical Field
The invention relates to the technical field of biological detection equipment, in particular to a feces sampler.
Background
Fecal testing is of great importance for early screening of many diseases, and whether a patient has a bleeding disease of the digestive tract can be screened by testing hemoglobin in the feces, so that fecal testing has become a routine item for many medical institutions to test diseases.
The traditional excrement collector only comprises two parts, namely a test tube and a sealing cover, wherein a collecting spoon is arranged in the sealing cover, and the upper end of the sealing cover can be opened. When the sample collecting device is used, the collected substance is placed into a test tube to be diluted, the upper end of the sealing cover is opened, and a sample to be detected is dripped onto the detection strip. Often, impurities in the test tube are not filtered, thereby affecting the detection result.
In order to solve the above technical problems, people improve and design a feces sampler, such as a disposable feces centrifugal collector (with an authorization publication number of CN 206208562U) disclosed in the patent document with chinese patent number of cn201621336000, which has a main structure: 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, wherein the collecting rod is arranged at one end of the bidirectional connecting part connected with the test tube, and the collecting spoon is arranged at the tail end of the collecting rod; the two-way connecting part and the collecting rod are both hollow, the collecting rod is provided with micropores in an array, the micropores are communicated with the two-way connecting part and the collecting rod, and the other end of the two-way connecting part is connected with the dropping funnel. However, the feces sampler has the following defects: 1. when in use, the PBS collection liquid is poured into the test tube in advance, then the test tube is partially inclined, and the collection spoon is screwed after extending into the test tube; the test tube can not incline too greatly among the operation process, otherwise arouse PBS to gather the liquid and pour out easily, and inclination is big not enough, then gathers the excrement and urine in the spoon and drop easily, especially water sample excrement and urine to bring inconvenience for the operation. 2. Excrement and urine centrifugation collector adopts the dropping funnel to drip the sample into the detection mouth and accomplishes the detection, and can't realize fine depositing the sample alone.
Disclosure of Invention
The invention aims at: in order to overcome the defects in the prior art, the invention provides the excrement sampler with the injection type PBS (phosphate buffer solution) collecting solution, which realizes that the PBS collecting solution is placed in the sampler after the sampler is connected with the test tube in advance, and has the advantages of convenience, tidiness and convenience in operation.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a PBS collecting fluid injection type excrement and urine sample thief, includes test tube, filter and sample collection pipe, and the filter includes two-way adapting unit, gathers the pole and gathers the spoon, and the one end that two-way adapting unit is connected with the test tube is equipped with gathers the pole, gather the pole end and be equipped with and gather the spoon, two-way adapting unit and gather the inside cavity that is of pole, gather the micropore that has the array on the pole, micropore and two-way adapting unit and gather the inside intercommunication of pole, sample collection pipe, its characterized in that are connected to two-way adapting unit: the test tube on be equipped with PBS collecting fluid injection and connect, PBS collecting fluid injection connects the lumen UNICOM with the test tube, is furnished with the rubber on the PBS collecting fluid injection connects and seals the stopper.
By adopting the technical scheme, when the device is used, after the collection spoon finishes excrement collection, the filter is connected with the test tube, then PBS (phosphate buffer solution) collection liquid is injected into the test tube through the PBS collection liquid injection joint, and the PBS collection liquid injection joint is sealed by the rubber sealing plug after being injected; like this at test tube and filter connection process, can look after the collection spoon completely, have convenient operation's advantage.
Preferably, PBS collecting fluid injection joint is located test tube circumference pipe wall, and PBS collecting fluid injection joint corresponds with the spoon mouth position of gathering the spoon, and PBS collecting fluid injection joint includes bellied interior convex part in the test tube week lateral wall, has the vestibule in the interior convex part, the rubber seal stopper includes annular rubber ring, and annular rubber ring overlaps outside the test tube, and integrated into one piece has the end cap on the rubber ring, and the end cap is fixed to be inlayed in the vestibule of interior convex part. Under the structural design, the injector pierces the plug, PBS (phosphate buffer solution) collecting liquid is injected into the test tube through the injector, and the PBS collecting liquid injection joint corresponds to the spoon opening of the collecting spoon and can wash the sample in the collecting spoon, so that the sample and the PBS collecting liquid are fully mixed; the needle tubing of extracting the syringe after PBS collecting fluid injection is accomplished, rubber seal stopper self-healing realizes sealed again, under the structure of rubber seal stopper, can guarantee to combine firmly reliable on the test tube, has the clean and tidy advantage pleasing to the eye and convenient to use of appearance under the PBS collecting fluid injection joint structure.
Preferably, the sample collecting pipe includes the dropping funnel, and the head end of dropping funnel is the drip mouth, and the drip mouth upper cover of dropping funnel is equipped with the closing cap, is equipped with sealing rubber in the dropping funnel tail port, and the dropping funnel is the vacuum tube, the cavity intracavity of two-way adapting unit is equipped with the puncture needle pipe, and the puncture needle pipe is located the cavity intracavity middle part of two-way adapting unit, and two-way adapting unit has the cover and connect the pipeline section of cover outside the pjncture needle pipe, what the dropping funnel tail end can guide inserts in the cover and connect the pipeline section, and the puncture needle pipe can pierce through sealing rubber stopper and realize the cavity UNICOM of. Under the structural design, the tail end of the dropping funnel is guided to be inserted into the sleeving pipe section, the puncture needle tube penetrates through the sealing rubber plug to realize the communication of the bidirectional connecting part and the vacuum tube, so that a detection sample obtained after filtration is placed into the dropping funnel, the dropping funnel is pulled out after sampling is finished, the rubber sealing plug is automatically closed to realize sealing, the sealed storage of the sample is realized, and the dropping funnel adopts the vacuum tube design, so that the advantages of long sample storage time and good effect are realized; in addition, two-way adapting unit adopts the design of puncture needle pipe, and under the design of wide mouth, the difficult hourglass phenomenon that exists of sample, moreover because the drip chamber is the vacuum tube, the tail end is the rubber sealing plug design, when the operation of separation drip chamber, can be better avoid the sample to spill, and more clean moreover, what the drip chamber tail end can guide inserts in the bell and spigot joint pipe section, and it is more convenient to operate.
Preferably, be equipped with the removal guide screw thread in the cup jointing pipeline section, the removal guide screw thread is furnished with the guide soon and is sealed the jam, and the guide shutoff stopper includes the nut seat of outband screw thread, and the external screw thread of nut seat corresponds the cooperation with the removal guide screw thread, and the nut seat has the cavity that link up of axial, and the nut seat link up the cavity and is inlayed rubber sprue, and the tail end of nut seat is equipped with the forked tail connecting block, the drip chamber tail end is equipped with the forked tail connecting groove, and the forked tail connecting groove has the connector that link up drip chamber circumference side, and the guide shutoff stopper can be rotated in cup jointing pipeline section port department and supplies the forked tail connecting block to stretch out the cup jointing pipeline section port and cup joint, breaks away from the forked tail connecting block with the forked tail. Under this structural design, the guide is blockked up and is connected through dovetail connection piece and dovetail connection groove realization with the drip chamber, it can rotate guide shutoff stopper along threaded movement to rotate the drip chamber, thereby realize puncture needle tubing puncture guide shutoff rubber plug and sealing rubber stopper of jam, before the sample centrifugal operation, the shutoff to puncture needle tubing is realized to the rubber shutoff piece of guide shutoff stopper, after sample separation is made, accomplish above-mentioned operation and introduce in the vacuum tube in order to reach the sample, after sample collection completion, rotatory drip chamber, to guide shutoff to cup joint pipe section port soon, realize the shutoff once more to puncture needle tubing, and break away from the drip chamber, thereby guarantee safety and the clean and tidy health of operation.
Preferably, an inner extension limiting ring is arranged at the port of the sleeve pipe section, an inner ring hole of the inner extension limiting ring is in guide fit with the outer pipe wall of the dropping funnel, and the inner extension limiting ring is in axial limit fit with the guide plugging plug. Under this structural design, extend the spacing ring and avoid guiding the shutoff stopper to revolve out the cup joint pipeline section, realize the reliable shutoff to puncture needle tubing, extend the spacing ring in addition and realize the guide to the drip chamber.
Preferably, the tail end of drip chamber is equipped with and prevents the puncture and keeps off the ring, and the puncture of preventing of drip chamber keeps off the ring and cup joints the intraductal location of interior ring of spacing ring and seals the rubber buffer and not impaled by the puncture needle with constituting in the immigration of drip chamber tail end axial component, prevent that the puncture keeps off setting up in the drip chamber tail end that the ring can be taken off to take off and prevent in the puncture keeps off the ring back along with drip chamber axial immigration cup joints the pipeline section, and constitute the puncture needle and pierce through seals the rubber buffer. Under the structural design, in the initial stage of use, under the action of the puncture-proof stop ring, the tail end part of the dropping funnel can be screwed into the sleeving pipe section to realize reliable positioning of the dropping funnel on the two-way connector, meanwhile, the puncture needle tube cannot puncture the sealing rubber plug to ensure the early-stage mixing and centrifugal operation, and after the operation is finished, the puncture-proof stop ring is removed, so that the dropping funnel can be continuously moved into the sleeving pipe section until the puncture needle tube punctures the sealing rubber plug to realize the sample storage operation; the puncture-proof retaining ring realizes the positioning function during operation, so that the operation is simpler and more reliable; meanwhile, the anti-puncture blocking ring is removed to prompt the drip chamber to be used, so that the drip chamber is prevented from being started again.
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 and pinching part, one axial end of the baffle ring main body is provided with a plurality of connecting salient points which are distributed in the circumferential direction, and the connecting salient points are connected with the baffle ring main body and the dropping funnel. Under this structural design, prevent that the puncture keeps off ring simple structure, take off easy operation convenience.
Preferably, a funnel-shaped needle tube seat for fixing the puncture needle tube is arranged in the bidirectional connecting component, 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, facing the collecting rod, of the needle tube seat. Under this structural design, the needle tubing seat that leaks hopper-shaped makes things convenient for the gathering of liquid to flow out, and 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 filter area is big, the storage of filtrating can be realized at the stock solution interval, guarantees that the vacuum tube can be reliable absorbs the sample.
Preferably, dovetail joint groove extends with the one end that the connector is relative and crosses sealed rubber buffer axial central point, and dovetail joint groove bottom is equipped with the location pit that corresponds with sealed rubber buffer axial central point position, is equipped with the sealed ejector pad of slidable in the dovetail joint groove, and sealed ejector pad bottom is equipped with the bump, sealed ejector pad slidable extremely the bump stretches into in the location pit and supports and press in the axial central point of sealed rubber buffer. Under this structural design, after the dropping funnel sample, the sealed ejector pad of slidable will seal in the bump of ejector pad is put into the location pit, supports the pressure to sealing rubber stopper's axial central point, supports the pressure to sealing rubber stopper's puncture point promptly to make sealing rubber stopper deformation, reach reliable puncture point and seal.
The invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a perspective view of a PBS collection fluid injection-type feces sampler according to an embodiment of the present invention;
FIG. 2 is an exploded view of a PBS collection fluid injection-type feces sampler according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a PBS collection fluid injection type feces sampler 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 sample collection tube according to an embodiment of the present invention;
FIG. 6 is an enlarged view of a portion A of FIG. 3;
FIG. 7 is a schematic view of a test tube according to an embodiment of the present invention;
fig. 8 is a schematic structural view of another embodiment of the tail of the drip chamber of the present invention.
Detailed Description
Referring to the attached drawings 1-7, the invention discloses a PBS (phosphate buffer solution) collecting liquid injection type feces sampler which comprises a test tube 1, a filter 2 and a sample collecting tube 3, wherein the filter 2 comprises a bidirectional connecting part 21, a collecting rod 22 and a collecting spoon 23, the collecting rod 22 is arranged at one end of the bidirectional connecting part 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 part 21 and the collecting rod 22 are hollow, the collecting rod 22 is provided with arrayed micropores 221, the micropores 221 are communicated with the bidirectional connecting part 21 and the collecting rod 22, the other end of the bidirectional connecting part 21 is connected with the sample collecting tube 3, the test tube 1 is provided with a PBS collecting liquid injection joint 11, the PBS collecting liquid injection joint 11 is communicated with a tube cavity of the test tube 1, and the PBS collecting liquid injection joint 11 is. When the device is used, after the collection spoon 23 finishes excrement collection, the filter 2 is connected with the test tube 1, PBS (phosphate buffer solution) collection liquid is injected into the test tube 1 through the PBS collection liquid injection joint 11, and the PBS collection liquid is injected and then is sealed by the rubber sealing plug 12 to seal the PBS collection liquid injection joint 11; therefore, the collecting spoon 23 can be completely taken care of in the connection process of the test tube 1 and the filter 2, and the device has the advantage of convenience in operation.
Further, PBS collects liquid injection and connects 11 and is located 1 circumference pipe wall of test tube, PBS collects liquid injection and connects 11 and gathers the spoon mouth position correspondence of spoon 23, and PBS collects liquid injection and connects 11 and includes that test tube 1 week side wall is interior bellied protruding convex part 111, and porose 112 has in interior convex part 111, rubber seal plug 12 includes annular rubber ring 121, and rubber ring 121 overlaps outside test tube 1, and integrated into one piece has end cap 122 on the rubber ring 121, and end cap 122 is fixed to be inlayed in the pore chamber of interior convex part 111. The plug 122 is punctured by the injector, a puncture indicating point is marked on the outer side surface of the plug 122, PBS (phosphate buffer solution) collecting liquid is injected into the test tube 1 through the injector, and the PBS collecting liquid injection joint 11 is corresponding to the spoon opening position of the collecting spoon 23 and is used for washing a sample in the collecting spoon 23 to ensure that the sample and the PBS collecting liquid are fully mixed; the syringe of drawing the syringe after PBS collecting liquid pours into the completion, and rubber closing plug 12 self-healing realizes sealed again, and under rubber closing plug 12's the structure, can guarantee to combine firmly reliable on test tube 1, PBS collecting liquid injection joint 11 structure down, PBS collecting liquid injection joint 11 is not protruding in the test tube 1 outside, has the neat and artistic and convenient to use's of appearance advantage.
In this embodiment, the sample collecting tube 3 includes a dropping funnel, a dropping nozzle 31 is arranged at the head end of the dropping funnel, a sealing cap 32 is covered on the dropping nozzle 31 of the dropping funnel, wherein the sealing cap 32 includes a cap main body 321 with internal threads, the cap main body 321 is in threaded fit with the dropping funnel 3, a conical rubber plug 322 is arranged at the center of the bottom in the cap main body 321, the conical rubber plug 322 is plugged in a dropping port 311 of the dropping funnel 3 to realize sealing and plugging, in order to realize vacuum preservation of a sample, the dropping funnel 3 adopts a vacuum tube design, a sealing rubber plug 33 is arranged in a tail port of the vacuum tube, a needle tube seat 211 is arranged in a hollow cavity of the bidirectional connecting part 21, a puncture needle tube 212 is arranged on the needle tube seat 211, the puncture needle tube 212 is arranged in the middle of the hollow cavity of the bidirectional connecting part 21, the bidirectional connecting part 21 has a sleeve section 213 sleeved outside the puncture needle tube 212, and, and the puncture needle tube 212 can puncture the sealing rubber plug 33 to realize the communication between the inner cavity of the dropping funnel 3 and the hollow cavity of the bidirectional connecting component 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 tube, the detection sample obtained after filtration is placed into the dropping funnel 3, the dropping funnel 3 is pulled out after sampling is finished, the rubber sealing plug is automatically closed to realize sealing, the sealed storage of the sample is realized, and the dropping funnel 3 adopts the vacuum tube design, so that the advantages of long sample storage time and good effect are realized; in addition, the two-way connecting component 21 adopts the design of the puncture needle tube 212, the sample is not easy to have the leakage phenomenon under the design of a wide opening, and because the dropping funnel 3 is a vacuum tube, and the tail end is the design of the sealing rubber plug 33, when the dropping funnel 3 is separated for operation, the sample can be better prevented from leaking, the operation is cleaner, the tail end of the dropping funnel 3 can be guided to be inserted into the sleeve joint pipe section 213, and the operation is more convenient.
The connecting structure is characterized in that a movable guide thread 2131 is arranged in the sleeving pipe section 213, the movable guide thread 2131 is matched with a guide plug 214 in a rotating mode, the guide plug 214 comprises a nut seat 2141 with external threads, external threads of the nut seat 2141 are matched with the movable guide thread 2131 correspondingly, the nut seat 2141 is provided with a through cavity which is axially through, a rubber plug 2142 is embedded in the through cavity of the nut seat 2141, a dovetail connecting block 2143 is arranged at the tail end of the nut seat 2141, a dovetail connecting groove 34 is arranged at the tail end of the dropping funnel 3, the dovetail connecting groove 34 is provided with a connecting port which penetrates through the circumferential side face of the dropping funnel 3, the guide plug 214 can rotate at the port of the sleeving pipe section 213 to enable the dovetail connecting block 2143 to extend out of the port of the sleeving pipe section 213 to enable the dovetail connecting groove 34 of the dropping funnel 3 to be sleeved and disconnected from the dovetail connecting block 214. The guide plug is connected with the dropping funnel 3 through the dovetail connecting block 2143 and the dovetail connecting groove 34, the guide plug 214 can be rotated to move along the thread by rotating the dropping funnel 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 centrifugal operation, the rubber plug 2142 of the guide plug 214 realizes the plugging of the puncture needle tube 212, after the sample is separated and manufactured, the operation is completed to achieve the purpose that the sample is introduced into the vacuum tube, after the sample is collected, the dropping funnel 3 is rotated, the guide plug 214 is screwed to the port of the sleeve pipe section 213, the puncture needle tube 212 is plugged again, and the dropping funnel 3 is separated, so that the safety and the cleanness and the sanitation of the operation are guaranteed. The threading action can make the puncturing and withdrawing process of the puncturing needle tube 212 smoother. Certainly, 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 sleeve joint pipe section 213, but the puncture needle tube 212 is directly exposed, and potential safety hazards are easily brought to post-waste treatment after the puncture needle tube is discarded. As shown in fig. 8, as another embodiment of the present invention, in order to further ensure the sealing of the sealing rubber stopper to the puncture point, one end of the dovetail connecting groove 34 opposite to the connection port extends beyond the axial central point of the sealing rubber stopper 33 (i.e. the puncture point of the sealing rubber stopper 33), a positioning concave pit 341 corresponding to the axial central point of the sealing rubber stopper 33 is provided at the bottom of the dovetail connecting groove 34, a slidable sealing push block 36 is provided in the dovetail connecting groove 34, a protruding point 361 is provided at the bottom of the sealing push block 36, and the sealing push block 36 can slide until the protruding point 361 extends into the positioning concave pit 341 and abuts against the axial central point of the sealing rubber stopper 33. The sealing push block 36 and the dovetail connecting groove 34 have a movable gap in the height direction, the convex point 361 can be pressed and buckled in the positioning concave pit 341, the convex point 361 and the positioning concave pit 341 are in interference fit, and under the structural design, after the dropping funnel sampling is finished, the sealing push block can slide, the convex point of the sealing push block is placed in the positioning concave pit, the axial central point of the sealing rubber plug is pressed, namely, the puncture point of the sealing rubber plug is pressed, so that the sealing rubber plug is deformed, and the reliable puncture point sealing is achieved.
In this embodiment, an inner extension limiting ring 215 is disposed at a port of the sleeving pipe section 213, the inner extension limiting ring 215 and the sleeving pipe section 213 are integrally formed, an inner annular hole of the inner extension limiting ring 215 is in guiding fit with an outer pipe wall of the dropping funnel 3, and the inner extension limiting ring 215 is in axial limiting fit with the guide plug 214. Under this structural design, the interior spacing ring 215 that extends avoids guiding the shutoff and blocks 214 and unscrews the extension pipe section 213, realizes the reliable shutoff to puncture needle tubing 212, and the interior spacing ring 215 that extends realizes the guide to the drip chamber 3 in addition.
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 sleeving component 21-3, the first cylindrical component 21-1 is integrally formed with the collecting rod 22, the first cylindrical component 21-1 is provided with an external thread 21-11 for screwing the test tube 1, the first cylindrical component 21-1 is extended to a plugging step part 21-12 relative to the other end of one end connected with the collecting rod 22, 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 plugging step part 21-12 of the first cylindrical component 21-1, the sleeving component 21-3 comprises a sleeving tube section 213 and a sleeving component main part integrally formed with an internal extending limiting ring 215, and the sleeving component main part 21-3 is provided with The tail ends of the body 21-31 and the main body 21-31 of the sleeving part extend to form inner step sleeves 21-32 sleeved outside the cylindrical pipes 21-21. The design facilitates the processing and forming of each part, and the guide plug 214 can be pre-installed in the sleeving pipe section 213 and screwed at the port of the sleeving pipe section 213 to allow the dovetail connecting block 2143 to extend out of the port of the sleeving pipe section 213.
For preventing that mistake screw in dropping funnel 3 from causing the vacuum tube to become invalid, adopt following structural design, the tail end of dropping funnel 3 is equipped with prevents that puncture keeps off ring 35, and the puncture of preventing of dropping funnel 3 keeps off ring 35 and cup joint pipe section 213 backstop cooperation in order to constitute 3 internal ring downthehole location of extending spacing ring 215 in of the tail end axial component immigration of dropping funnel and sealed rubber buffer 33 not impaled by puncture needle pipe 212, prevent that puncture keeps off setting up in 3 tail ends of dropping funnel that ring 35 can be taken off to in taking off and preventing puncture and keeping off ring 35 back along with 3 axial immigration of dropping funnel overlap pipe section 213, and constitute puncture needle pipe 212 and impale sealed rubber buffer 33. In the initial stage of use, under the action of the puncture-proof baffle ring 35, the tail end part of the dropping funnel 3 can be screwed into the sleeving pipe section 213 to realize reliable positioning of the dropping funnel 3 on the two-way connector, meanwhile, the puncture needle tube 212 cannot puncture the sealing rubber plug 33 to ensure the previous mixing and centrifugal operation, and after the operation is finished, the puncture-proof baffle ring 35 is removed, so that the dropping funnel 3 can be continuously moved into the sleeving pipe section 213 until the puncture needle tube 212 punctures the sealing rubber plug 33 to realize the sample storage operation; the puncture-proof retaining ring 35 realizes the positioning function during operation, so that the operation is simpler and more reliable; meanwhile, the user can be prompted to use the dropping funnel 3 by removing the puncture-preventing retaining ring 35, and the dropping funnel 3 is prevented from being used for the second time.
The puncture-proof 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 and pinching part 3521, the removing and pinching part 3521 can be properly designed in an anti-slip mode and a warping mode, so that the removing and pinching part 3521 can be better pinched, a plurality of connecting salient points 353 distributed in the circumferential direction are arranged at one axial end of the retaining ring main body 352, and the connecting salient points 353 are connected with the retaining ring main body 352 and the drip chamber 3. The puncture-proof retaining ring 35 has a simple structure and is easy and convenient to remove.
In addition, a funnel-shaped needle tube holder 211 for fixing the puncture needle tube 212 is provided in the bidirectional connecting member 21, the liquid inlet port of the puncture needle tube 212 is located at the bottom of the needle tube holder 211, and a filter membrane 216 is provided on the side of the needle tube holder 211 facing the collection rod 22. Funnel-shaped needle tubing seat 211 makes things convenient for the gathering of liquid to flow out, and filtration membrane 216 can realize the secondary of excrement sediment and block, improves the filter 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. Funnel-shaped filter membrane 216 has the advantage that filter area is big, and the storage of filtrating can be realized to stock solution interval 217, guarantees that the vacuum tube can be reliable absorbs the sample.
Claims (10)
1. The utility model provides a PBS collecting fluid injection type excrement and urine sample thief, includes test tube, filter and sample collection pipe, and the filter includes two-way adapting unit, gathers the pole and gathers the spoon, and the one end that two-way adapting unit is connected with the test tube is equipped with gathers the pole, gather the pole end and be equipped with and gather the spoon, two-way adapting unit and gather the inside cavity that is of pole, gather the micropore that has the array on the pole, micropore and two-way adapting unit and gather the inside intercommunication of pole, sample collection pipe, its characterized in that are connected to two-way adapting unit: the test tube on be equipped with PBS collecting fluid injection and connect, PBS collecting fluid injection connects the lumen UNICOM with the test tube, is furnished with the rubber on the PBS collecting fluid injection connects and seals the stopper.
2. The PBS collection fluid-injected stool sample collector of claim 1, wherein: PBS collecting liquid injection joint is located test tube circumference pipe wall, and PBS collecting liquid injection joint corresponds with the spoon mouth position of gathering the spoon, and PBS collecting liquid injection joint includes bellied interior convex part in the test tube week lateral wall, has the vestibule in the interior convex part, the rubber sealing stopper includes annular rubber ring, and annular rubber ring overlaps outside the test tube, and integrated into one piece has the end cap on the rubber ring, and the end cap is fixed to be inlayed in the vestibule of interior convex part.
3. A PBS collection fluid-infused stool sampler according to claim 1 or 2, further comprising: the sample collecting tube comprises a dropping funnel, the head end of the dropping funnel is a dropping nozzle, a sealing cap is arranged on the upper cover of the dropping nozzle of the dropping funnel, sealing rubber is arranged in the tail end port of the dropping funnel, the dropping funnel is a vacuum tube, a puncture needle tube is arranged in the hollow cavity of the bidirectional connecting component and is located in the middle of the hollow cavity of the bidirectional connecting component, the bidirectional connecting component is provided with a sleeving tube section sleeved outside the puncture needle tube, the tail end of the dropping funnel can be guided to be inserted into the sleeving tube section, and the puncture needle tube can pierce through the sealing rubber plug to realize the hollow cavity communication between the inner cavity of the dropping.
4. The PBS collection fluid-injected feces sampler according to claim 3, wherein: the internal removal guide screw thread that is equipped with of cover union coupling pipeline, removal guide screw thread is furnished with the guide soon and is sealed the jam, and the guide shutoff stopper includes the nut seat of outband screw thread, and the external screw thread of nut seat corresponds the cooperation with removal guide screw thread, and the nut seat has the cavity that link up that the axial link up, and the nut seat link up the cavity and is inlayed rubber sprue, and the tail end of nut seat is equipped with the forked tail connecting block, the drip chamber tail end is equipped with the forked tail spread groove, and the forked tail spread groove has the connector that link up drip chamber circumference side, and the guide shutoff stopper can be rotated in cover union coupling pipeline section port department and supplies the forked tail connecting block to stretch out cover union coupling pipeline section port and cup joint, throw off the forked tail connecting block, and the guide.
5. The PBS collection fluid-injected feces sampler according to claim 4, wherein: an inner extension limiting ring is arranged at the port of the sleeve pipe section, an inner ring hole of the inner extension limiting ring is in guide fit with the outer pipe wall of the dropping funnel, and the inner extension limiting ring is in axial limit fit with the guide plugging plug.
6. The PBS collection fluid-injected feces sampler according to claim 5, wherein: the tail end of drip chamber is equipped with and prevents the puncture and keeps off the ring, and the puncture of preventing of drip chamber keeps off ring and cup joint pipe section backstop cooperation in order to constitute the interior annular opening of extending the spacing ring in the partial immigration of drip chamber tail end axial and fix a position and the sealing rubber stopper is not impaled by the puncture needle tubing, prevent that the puncture keeps off setting in the drip chamber tail end that the ring can be taken off to take off and prevent in the puncture keeps off the ring back along with the immigration of drip chamber axial overlap pipe section, and constitute puncture needle tubing and pierce through sealing rubber stopper.
7. The PBS collection fluid-injected feces sampler according to claim 6, wherein: the puncture-proof retaining ring comprises a retaining ring main body with a fracture, the fracture forms a guide opening for removing the retaining ring main body, one end of the fracture of the retaining ring main body is provided with a removing and pinching part, one end of the axial direction of the retaining ring main body is provided with a plurality of connecting salient points distributed in the circumferential direction, and the connecting salient points are connected with the retaining ring main body and the dropping funnel.
8. The PBS collection fluid-injected feces sampler according to claim 3, wherein: the bidirectional connecting component is internally provided with a funnel-shaped needle tube seat for fixing the puncture needle tube, the liquid inlet port of the puncture needle tube is positioned at the bottom of the needle tube seat, and one side of the needle tube seat, which faces the collecting rod, is provided with a filtering membrane.
9. The PBS collection fluid-injected stool sample collector of claim 8, wherein: the filtering membrane is funnel-shaped, and a liquid storage interval is arranged between the filtering membrane and the needle tube seat.
10. The PBS collection fluid-injected feces sampler according to claim 3, wherein: dovetail connection groove extends with the one end that the connector is relative and crosses sealed rubber buffer axial central point, and dovetail connection groove bottom is equipped with the location pit that corresponds with sealed rubber buffer axial central point position, is equipped with the sealed ejector pad of slidable in the dovetail connection groove, and sealed ejector pad bottom is equipped with the bump, sealed ejector pad slidable extremely the bump stretches into in the location pit and supports and press in the axial central point of sealed rubber buffer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911013935.2A CN110806332A (en) | 2019-10-24 | 2019-10-24 | PBS (Poly Butylene succinate) collecting liquid injection type excrement sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911013935.2A CN110806332A (en) | 2019-10-24 | 2019-10-24 | PBS (Poly Butylene succinate) collecting liquid injection type excrement sampler |
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| Publication Number | Publication Date |
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| CN110806332A true CN110806332A (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911013935.2A Pending CN110806332A (en) | 2019-10-24 | 2019-10-24 | PBS (Poly Butylene succinate) collecting liquid injection type excrement sampler |
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| CN (1) | CN110806332A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113188866A (en) * | 2021-04-29 | 2021-07-30 | 河南科技大学第一附属医院 | Preprocessing device that pathogenic bacteria used in gastroenterology inspection fecal sample |
| EP4335384A1 (en) * | 2022-09-09 | 2024-03-13 | Bio-X Diagnostics | Device for treating a fecal sample |
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| CN113188866A (en) * | 2021-04-29 | 2021-07-30 | 河南科技大学第一附属医院 | Preprocessing device that pathogenic bacteria used in gastroenterology inspection fecal sample |
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