CN209513353U - A kind of low temperature oxygen-free excrement collector - Google Patents
A kind of low temperature oxygen-free excrement collector Download PDFInfo
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- CN209513353U CN209513353U CN201920201548.0U CN201920201548U CN209513353U CN 209513353 U CN209513353 U CN 209513353U CN 201920201548 U CN201920201548 U CN 201920201548U CN 209513353 U CN209513353 U CN 209513353U
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- excrement
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- room temperature
- oxygen
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Abstract
The utility model relates to a kind of low temperature oxygen-free excrement collectors, belong to field of medical article technology；Include low temperature box, stool collection device and excrement oxygen-free collection device；The stool collection device includes Liquid sampler and solid air-sampler；The excrement oxygen-free collection device includes excrement anaerobic room temperature acquisition device and argon gas tube assembly；Close linking is saved by fecal sample multipoint acquisition, low temperature and without O_2 transport, solid-state or liquid excrement can be acquired using above-mentioned different device by collocation according to examination requirements, and different temperatures and oxygen environment are kept in transit to acquired excrement, such as aerobic low temperature, anaerobic low temperature, aerobic room temperature or anaerobic normal temperature environment, anaerobic bacteria recall rate is improved；Used cryogenic material is high molecular polymer based on Sodium Polyacrylate and water-absorbing resin, which can be placed in 4 DEG C, -20 DEG C, be pre-chilled in -80 DEG C of refrigerators or liquid nitrogen in various degree, be aided with the low temperature environment that the made low temperature box of thermal insulation material is formed.
Description
Technical field
The utility model relates to a kind of low temperature oxygen-free excrement collectors, belong to field of medical article technology.
Background technique
Excrement is the swill excreta of human or animal, inner protein, inorganic matter, fat, indigested food
Fiber, digestive juice remnants and the cell to fall off from enteron aisle and microorganism, there are also vitamin K, vitamin Bs etc..It is examined by excrement
Look into can compared with some pathological phenomenons of gastrointestinal tract are intuitively understood, judge indirectly alimentary canal, pancreas, liver and gallbladder function status.Now
Has multinomial utility model patent for feces collection, nearest Chinese patent CN107817123A is disclosed at a kind of novel faeces
Device is managed, fecal sample multipoint acquisition, dilution are saved and coarse filtration is combined together, can effectively acquire liquid and solid-state excrement
Just.But if acquisition excrement needs the time longer to being transported to control laboratory and carry out relevant treatment, it is interior collected in the meantime
Different degrees of degradation or denaturation may occur for contained many kinds of substance such as protein, nucleic acid, small molecule metabolites etc. in excrement,
Microbial activity can also decline in excrement.
Metagenomics are the DNA by extracting whole microorganisms directly from environmental sample, construct macro genomic library,
The genetic constitution for whole microorganisms that research environment sample is included in turn and its community function, the fecal microorganism such as newly risen
Metagenomics research is comprehensively to analyze microbiologic population's knot by carrying out high-flux sequence to fecal microorganism gene
Structure and gene function composition, this recognizes us and provides a new way using 95% or more Anticipated transient without scram
Diameter, and it can be found that difficult culture or the natural products in uncultured microorganisms and the natural products for being in " silencing " state.
For improve genomics research accuracy, need to ensure acquired excrement in transit each microorganism ratio of excrement do not occur it is larger
Change and influence extracted fecal microorganism DNA mass, microbial activity in feces collection and transportational process need to be kept or will be adopted
Excrement cryopreservation as early as possible.
In addition, caprophyl culture is also very important a part in clinical examination work, it is usually used in clear infectious enteropathy
Pathogenic bacteria instruct clinical application, accurate regimen of antibiotics, but pathogenic bacteria recall rate is still to be improved at present, especially to oxygen
The anaerobic bacteria of air-sensitive sense, the anaerobic bacteria for accounting for about normal intestinal flora ratio 99% can lead to autogenous infection in a particular state,
Diarrhea and pseudomembranous colitis as caused by drug resistance clostridium difficile after long-time service or use antibiotic lack of standardization.For this purpose, for
It need to carry out after the fecal sample clinical requirement sampling of Bacteria Culture immediately or 4 DEG C of inspections in preservation sample 2 hours are to reduce miscellaneous bacteria
Hyper-proliferative influences inspection result, but is often difficult to ensure the instant inspection of sample in real work, and without normal for excrement anaerobic
The concrete mode that temperature acquisition is transported.
Utility model content
The purpose of this utility model is that in view of the drawbacks of the prior art and insufficient, provide that a kind of structure is simple, and design is closed
Reason, low temperature oxygen-free excrement collector easy to use.
In order to achieve the above purposes, the technical solution adopted by the utility model is:, and the low temperature oxygen-free excrement collector includes
Low temperature box, stool collection device and excrement oxygen-free collection device；
The low temperature box includes hard polyurethane foams lagging casing, cooling box and flexible polyurethane foams thermal insulation liner；
The stool collection device includes Liquid sampler and solid air-sampler；
The excrement oxygen-free collection device includes excrement anaerobic room temperature acquisition device and argon gas tube assembly；
The stool collection device includes collecting pipe, and the upper and lower side of collecting pipe is equipped with screw thread；
The Liquid sampler includes collection tube, connecting rod, handle, reset spring, sealing ring one, upper tube cap, lower tube cap；Institute
Matching hole of the connecting rod at the top of collection tube is stated, the bottom of connecting rod is connect with reset spring；Handle is connected at the top of connecting rod；Institute
The inner wall for stating sealing ring one and collection tube cooperates；The outer wall of collection tube is arranged with upper tube cap；The inner wall of the upper tube cap with
The screw thread of collecting pipe upper end cooperates；The bottom of the collection tube is equipped with through-hole, acquires the interphase of bottom of the tube and lower tube cap
Mutually cooperation, the inner thread of the lower tube cap and the screw thread of collecting pipe lower end cooperate；
The solid air-sampler includes spoon bar, sampling spoon, push handle, semi-rigid foamed plastics column, upper card slot, lower bayonet slot；Institute
The bottom end for stating spoon bar is equipped with sampling spoon；The upper section of spoon bar is interspersed in semi-rigid foamed plastics column；The semi-rigid foamed plastics
The bottom of column and the top of upper tube cap cooperate；The top of the spoon bar is equipped with push handle；The spoon bar is threaded through in upper tube cap；
The upper card slot and push handle cooperate, and prevent down by excessively pushing in the process；The lower bayonet slot and push handle cooperate, and prevent
Excessive pull-up when pulling up, the activity limit of the upper card slot, lower bayonet slot for push handle.
The excrement anaerobic room temperature acquisition device include anaerobic room temperature collection tube, hollow ram, handle, stopple, sealing element,
Upper cover, the upper end of the anaerobic room temperature collection tube are equipped with screw thread, and the lower end of anaerobic room temperature collection tube is equipped with card slot and stomata；It is described
The top of hollow ram is equipped with handle, and the center of handle is equipped with stopple；The stopple and the centre bore of hollow ram cooperate；
The bottom end of the hollow ram is equipped with sealing element；The inner wall of the sealing element and anaerobic room temperature collection tube cooperates；On described
Lid and the screw thread of anaerobic room temperature collection tube upper end cooperate；
The argon gas tube assembly includes tunger tube, tunger tube push rod, lever；The bottom of the tunger tube is equipped with lower opening,
Sealing ring two is equipped in the tunger tube.
The lower opening and stomata cooperate；
Feces collection is entered into anaerobic room temperature collection tube, and discharge additional air in bottom will be pushed under sealing element, extracts argon afterwards
Lower opening is inserted into stomata by tracheae lower opening piston, is pushed tunger tube push rod for argon gas in tunger tube and is slowly pushed into excrement anaerobic room temperature
In collection tube.
Preferably, the distance between the upper card slot, lower bayonet slot may be configured as sampling spoon expectation dropping distance, semi-rigid
The sum of foamed plastics column length and upper tube cap tegmental wall thickness.
Preferably, the lower opening is consistent with the aperture of stomata, the lower opening is equipped with sealing-plug.
Preferably, the outer wall of the semi-rigid foamed plastics column is equipped with shell.
There are four types of modes for the utility model: aerobic solids feces collection, the acquisition of aerobic liquid manure, anaerobic solid manure are adopted
Collection, the acquisition of anaerobic liquid manure.
After adopting the above structure, a kind of low temperature oxygen-free excrement collector described in the utility model has below beneficial to effect
Fruit:
One, used cryogenic material is new bio ice bag inner macromolecule polymer, and main material is Sodium Polyacrylate
And water-absorbing resin, which can be placed in 4 DEG C, -20 DEG C, be pre-chilled in -80 DEG C of refrigerators or liquid nitrogen in various degree, be aided with heat preservation
The low temperature environment that the made low temperature box of material is formed；
Two, anaerobic environment is provided as needed, anaerobism under above situation can be improved without O_2 transport to fecal sample and cause a disease
The recall rate of bacterium.Using rubber seal by after additional air discharge in excrement anaerobic room temperature collection tube, argon gas (density ratio is utilized
The big inert gas of oxygen) by remaining air discharge collection tube, oxygen-free environment is formed around fecal specimens；
Three, close linking is saved by solid manure and liquid manure acquisition, low temperature and without O_2 transport, and can be wanted according to inspection
It asks and different degrees of low temperature and/or oxygen-free environment is kept in transit to acquired excrement, prevent the objects such as albumen and nucleic acid in excrement
Qualitative change degradation and miscellaneous bacteria excessive multiplication, improve anaerobic bacteria recall rate；
Four, the advantages that the utility model has structure simple, and setting is reasonable, low manufacture cost.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of low temperature box in the utility model；
Fig. 2 is the schematic diagram of stool collection device in the utility model；
Fig. 3 is the schematic diagram of excrement oxygen-free collection device in the utility model；
Fig. 4 is the schematic diagram of collecting pipe in the utility model；
Fig. 5 is the schematic diagram of Liquid sampler in the utility model；
Fig. 6 is the schematic diagram of solid air-sampler in the utility model；
Description of symbols:
Low temperature box 1, stool collection device 2, excrement oxygen-free collection device 3；
Hard polyurethane foams lagging casing 11, cooling box 12, flexible polyurethane foams thermal insulation liner 13；
Liquid sampler 21, solid air-sampler 22；Collecting pipe 23；
Collection tube 211, connecting rod 212, handle 213, reset spring 214, sealing ring 1, upper tube cap
216, lower tube cap 217；
Spoon bar 221, sampling spoon 222, push handle 223, semi-rigid foamed plastics column 224, upper card slot 225, lower bayonet slot 226
Excrement anaerobic room temperature acquisition device 31, argon gas tube assembly 32；
Anaerobic room temperature collection tube 311, hollow ram 312, handle 313, stopple 314, sealing element 315, upper cover 316；
Card slot 3111 and stomata 3112；
Tunger tube 321, tunger tube push rod 322, lever 323；
Lower opening 3211, sealing ring 2 3212；
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings.
Referring to such as Fig. 1 -- shown in Fig. 6, low temperature oxygen-free excrement collector described in present embodiment includes low temperature box 1, excrement
Just acquisition device 2 and excrement oxygen-free collection device 3；The low temperature box 1 includes hard polyurethane foams lagging casing 11, cooling box
12 and flexible polyurethane foams thermal insulation liner 13；The stool collection device 2 includes Liquid sampler 21 and solid air-sampler 22；
The excrement oxygen-free collection device 3 includes excrement anaerobic room temperature acquisition device 31 and argon gas tube assembly 32；The feces collection dress
It sets 2 and includes collecting pipe 23, and the upper and lower side of collecting pipe 23 is equipped with screw thread；
Wherein, the Liquid sampler 21 includes collection tube 211, connecting rod 212, handle 213, reset spring 214, sealing ring
One 215, upper tube cap 216, lower tube cap 217；The connecting rod 212 passes through the matching hole at 211 top of collection tube, the bottom of connecting rod 212
It is connect with reset spring 214；The top of connecting rod 212 is connected with handle 213；The inner wall of the sealing ring 1 and collection tube 211
It cooperates；The outer wall of collection tube 211 is arranged with upper tube cap 216；The inner wall of the upper tube cap 216 and the spiral shell of 23 upper end of collecting pipe
Line cooperates；The bottom of the collection tube 211 is equipped with through-hole, the interphase interworking of 211 bottom of collection tube and lower tube cap 217
It closes, the inner thread of the lower tube cap 217 and the screw thread of 23 lower end of collecting pipe cooperate；
The solid air-sampler 22 include spoon bar 221, sampling spoon 222, push handle 223, semi-rigid foamed plastics column 224, on
Card slot 225, lower bayonet slot 226；The bottom end of the spoon bar 221 is equipped with sampling spoon 222；The upper section of spoon bar 221 is interspersed in semi-rigid bubble
In foam plastic column 224；The bottom of the semi-rigid foamed plastics column 224 and the top of upper tube cap 216 cooperate；The spoon bar
221 top is equipped with push handle 223；The spoon bar 221 is threaded through in upper tube cap 216；The upper card slot 225 and push handle 223 are mutual
Cooperation prevents down by excessively pushing in the process；The lower bayonet slot 226 cooperates with push handle 223, excessive when preventing from pulling up
Pull-up, the activity limit of the upper card slot 225, lower bayonet slot 226 for push handle 223.
The excrement anaerobic room temperature acquisition device 31 include anaerobic room temperature collection tube 311, hollow ram 312, handle 313,
The upper end of stopple 314, sealing element 315, upper cover 316, the anaerobic room temperature collection tube 311 is equipped with screw thread, anaerobic room temperature collection tube
311 lower end is equipped with card slot 3111 and stomata 3112；The top of the hollow ram 312 is equipped with handle 313, in handle 313
The heart is equipped with stopple 314；The stopple 314 and the centre bore of hollow ram 312 cooperate；The bottom end of the hollow ram 312
Equipped with sealing element 315；The inner wall of the sealing element 315 and anaerobic room temperature collection tube 311 cooperates；The upper cover 316 and nothing
The screw thread of 311 upper end of oxygen room temperature collection tube cooperates；The argon gas tube assembly 32 includes tunger tube 321, tunger tube push rod
322, lever 323；The bottom of the tunger tube 321 is equipped with lower opening 3211, is equipped with sealing ring two in the tunger tube 321
3212.The lower opening 3211 cooperates with stomata 3112；Feces collection is entered into anaerobic room temperature collection tube 311, and by sealing element
Discharge additional air in bottom is pushed under 315, it is rear to extract 3211 piston of tunger tube lower opening, lower opening 3211 is inserted into stomata 3112, under
Argon gas in tunger tube is slowly pushed into excrement anaerobic room temperature collection tube 311 by pressure tunger tube push rod 322.
In addition, the distance between the upper card slot 225, lower bayonet slot 226 may be configured as sampling spoon 222 it is expected dropping distance,
The sum of 216 tegmental wall thickness of 221 length of semi-rigid foamed plastics column and upper tube cap；The aperture phase of the lower opening 3211 and stomata 3112
Symbol, the lower opening 3211 are equipped with sealing-plug；The outer wall of the semi-rigid foamed plastics column 224 is equipped with shell.
When present embodiment acquires excrement, it will first be unscrewed between screw thread on upper tube cap 216 and collecting pipe；
When acquiring liquid excrement, handle 213 is pressed downward floor level, connecting rod 212 moves down promotion sealing in the process
It encloses 1 liquid sample inner air tube is discharged and reset spring 214 is forced to push, is then inserted into the through-hole for acquiring bottom of the tube
The handle 213 pushed is slowly unclamped after in liquid excrement, the negative pressure formed in pipe makes liquid excrement be inhaled into sampling pipe, will sample
Pipe 211 is sent into collecting dung pipe 23, and pressure handle 213 all instills liquid excrement in collecting pipe.
When acquiring solid-state excrement, push handle 223 is pressed down on, in the process, spoon bar 221, which moves down, makes card slot on spoon bar 221
225 to 224 top of semi-rigid foamed plastics column, and sampling spoon drops to liquid sample bottom of the tube through-hole lower section, then picking solid-state
Excrement is sent into collecting dung pipe 23, pulls up push handle 223, is scraped excrement in collecting pipe 23 using liquid sample pipe lower end.
Then remove lower tube cap 217 (217 original of lower tube cap is to be screwed in the bottom of collecting pipe 23) and by itself and collecting pipe
The screw thread of 23 upper ends screws, and collecting pipe 23 is put into the cooling cartridge apertures equipped with thermal insulation liner, lagging casing upper cover is covered.
When to carry out the acquisition of anaerobic room temperature and transport to excrement, first the unscrewing lid mouth of upper cover 316 is placed on platform upwards,
After hole is opened on snorkel in excrement anaerobic room temperature acquisition tube wall stomata 3112 and excrement anaerobic room temperature collection tube push rod, upwards
Hollow ram 312 and the taking-up of sealing element 315 are vertically arranged in upper cover 316 by carrying handle 313, for various trait excrement, are made
With Liquid sampler or solid, acquires excrement and be put into excrement anaerobic room temperature acquisition bottom of the tube, then pass through handle 313 for sealing element
315 are slowly pushed into downwards card slot 3111 along excrement anaerobic room temperature acquisition tube wall, open 3211 piston of tunger tube lower opening, by excrement without
Oxygen room temperature acquisition 3112 outer wall of tube wall stomata is inserted in lower opening 3211, and argon gas in tunger tube is slowly pushed by depression handle 323
Excrement anaerobic room temperature collection tube, this is moved up in the process with hand fixed operation handle 323 with sealing element 315, into excrement anaerobic room temperature
Argon gas in collection tube gradually sinks, and by inner air tube, snorkel lower opening is pushed away along hollow in excrement anaerobic room temperature collection tube push rod
Snorkel is discharged in bar 312, will fill in the stopple of hollow ram 312 in hole after argon gas in pipe all injection, by lower opening 3211
It is separated with stomata 3112, and corresponding piston is filled in into stomata, finally match upper cover 316 and anaerobic room temperature collection tube outer wall thread
Merging is put into low temperature box.
Present embodiment can carry out excrement using above-mentioned apparatus by collocation aerobic normal according to different experiments purpose
Temperature, anaerobic room temperature, aerobic low temperature or the acquisition transport of anaerobic low temperature.When carrying out aerobic room temperature acquisition transport to excrement, without pre-
Cold cooling box need to only carry stool collection device and reach sampled point for different fecal characters, using liquid sample pipe or admittedly
Body sample spoon acquisition fecal sample is placed in excrement collecting tube；When carrying out aerobic low temperature acquisition transport to excrement, according to excrement
Cooling box is first placed in 4 DEG C, -20 DEG C, -80 DEG C or liquid nitrogen before acquiring excrement, makes by the just difference of cryo-conservation temperature requirement
Degree needed for temperature is down to experiment in cooling box, is then put into lagging casing for cooling box and thermal insulation liner is put into cooling box
Hole, carries assembled low temperature box and excrement collector reaches sampling spot, carries out excrement sampling；It is normal when carrying out anaerobic to excrement
When temperature acquisition transport, it need to only carry stool collection device and excrement oxygen-free collection device reaches sampling spot, stool collection device
Cooperate excrement oxygen-free collection device that excrement is packed into excrement anaerobic room temperature collection tube；It is transported when carrying out the acquisition of anaerobic low temperature to excrement
When defeated, the assembled low temperature box of pre-cooling, stool collection device and excrement oxygen-free collection device need to be carried and arrive at sample point, use excrement
Just excrement is placed in excrement anaerobic room temperature collection tube by acquisition device, and puts it into low temperature box.
A kind of low temperature oxygen-free excrement collector described in present embodiment, by fecal sample multipoint acquisition, low temperature and
No O_2 transport saves close linking, and can according to examination requirements to acquire excrement keep in transit different degrees of low temperature with/
Or oxygen-free environment, the substances such as albumen and nucleic acid denaturation degradation and miscellaneous bacteria excessive multiplication in excrement are prevented, pathogenic bacteria of manure inspection is improved
Extracting rate, especially anaerobic bacteria recall rate；Used cryogenic material is the polyphosphazene polymer based on Sodium Polyacrylate and water-absorbing resin
Close object, which can be placed in 4 DEG C, -20 DEG C, be pre-chilled in -80 DEG C of refrigerators or liquid nitrogen in various degree, be aided with thermal insulation material institute
The low temperature environment that low temperature box processed is formed；Used argon gas is the big inert gas of density ratio oxygen, and excrement anaerobic room temperature can be discharged
Additional air in collection tube builds oxygen-free environment.
The above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, those of ordinary skill in the art couple
The other modifications or equivalent replacement that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope should all cover in the scope of the claims of the utility model.
Claims (4)
1. a kind of low temperature oxygen-free excrement collector, it is characterised in that: the low temperature oxygen-free excrement collector includes low temperature box, excrement
Acquisition device and excrement oxygen-free collection device；
The low temperature box includes hard polyurethane foams lagging casing, cooling box and flexible polyurethane foams thermal insulation liner；
The stool collection device includes Liquid sampler and solid air-sampler；
The excrement oxygen-free collection device includes excrement anaerobic room temperature acquisition device and argon gas tube assembly；
The stool collection device includes collecting pipe, and the upper and lower side of collecting pipe is equipped with screw thread；
The Liquid sampler includes collection tube, connecting rod, handle, reset spring, sealing ring one, upper tube cap, lower tube cap；The company
Bar passes through the matching hole at the top of collection tube, and the bottom of connecting rod is connect with reset spring；Handle is connected at the top of connecting rod；It is described close
The inner wall of seal one and collection tube cooperates；The outer wall of collection tube is arranged with upper tube cap；The inner wall of the upper tube cap and collection
The screw thread of pipe upper end cooperates；The bottom of the collection tube is equipped with through-hole, acquires the interphase interworking of bottom of the tube and lower tube cap
It closes, the inner thread of the lower tube cap and the screw thread of collecting pipe lower end cooperate；
The solid air-sampler includes spoon bar, sampling spoon, push handle, semi-rigid foamed plastics column, upper card slot, lower bayonet slot；The spoon
The bottom end of bar is equipped with sampling spoon；The upper section of spoon bar is interspersed in semi-rigid foamed plastics column；The semi-rigid foamed plastics column
Bottom and the top of upper tube cap cooperate；The top of the spoon bar is equipped with push handle；The spoon bar is threaded through in upper tube cap；It is described
Upper card slot and push handle cooperate, and prevent down by excessively pushing in the process；The lower bayonet slot and push handle cooperate, and prevent upwards
Excessive pull-up when drawing, the activity limit of the upper card slot, lower bayonet slot for push handle；
The excrement anaerobic room temperature acquisition device include anaerobic room temperature collection tube, hollow ram, handle, stopple, sealing element, on
Lid, the upper end of the anaerobic room temperature collection tube are equipped with screw thread, and the lower end of anaerobic room temperature collection tube is equipped with card slot and stomata；In described
The top of empty push rod is equipped with handle, and the center of handle is equipped with stopple；The stopple and the centre bore of hollow ram cooperate；Institute
The bottom end for stating hollow ram is equipped with sealing element；The inner wall of the sealing element and anaerobic room temperature collection tube cooperates；The upper cover
It cooperates with the screw thread of anaerobic room temperature collection tube upper end；
The argon gas tube assembly includes tunger tube, tunger tube push rod, lever；The bottom of the tunger tube is equipped with lower opening, described
Sealing ring two is equipped in tunger tube；
The lower opening and stomata cooperate；
Feces collection is entered into anaerobic room temperature collection tube, and discharge additional air in bottom will be pushed under sealing element, extracts tunger tube afterwards
Lower opening is inserted into stomata by lower opening piston, is pushed tunger tube push rod for argon gas in tunger tube and is slowly pushed into the acquisition of excrement anaerobic room temperature
Guan Zhong.
2. a kind of low temperature oxygen-free excrement collector according to claim 1, it is characterised in that: the upper card slot, lower bayonet slot
The distance between may be configured as sampling spoon expectation dropping distance, semi-rigid foamed plastics column length and upper tube cap tegmental wall thickness it
With.
3. a kind of low temperature oxygen-free excrement collector according to claim 1, it is characterised in that: the hole of the lower opening and stomata
Diameter is consistent, and the lower opening is equipped with sealing-plug.
4. a kind of low temperature oxygen-free excrement collector according to claim 1, it is characterised in that: the semi-rigid foamed plastics
The outer wall of column is equipped with shell.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109738233A (en) * | 2019-02-15 | 2019-05-10 | 中南大学湘雅医院 | A kind of low temperature oxygen-free excrement collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109738233A (en) * | 2019-02-15 | 2019-05-10 | 中南大学湘雅医院 | A kind of low temperature oxygen-free excrement collector |
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