CN209778284U - Specimen stationary liquid extraction element - Google Patents
Specimen stationary liquid extraction element Download PDFInfo
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- CN209778284U CN209778284U CN201920666308.8U CN201920666308U CN209778284U CN 209778284 U CN209778284 U CN 209778284U CN 201920666308 U CN201920666308 U CN 201920666308U CN 209778284 U CN209778284 U CN 209778284U
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Abstract
The application provides a sample stationary liquid extraction element, includes: the liquid storage barrel comprises a barrel body and a barrel cover, and the barrel cover can be matched with the upper end of the barrel body so as to seal the liquid storage barrel; a first end of the opening and closing valve penetrates through the barrel cover and is fixedly arranged on the barrel cover; a first hose, the first end of which is connected with the first end of the opening and closing valve, and the second end of which extends downwards to the bottom of the barrel body; the air outlet end of the one-way vent valve penetrates through the barrel cover and is fixedly arranged on the barrel cover, and the air inlet end of the one-way vent valve is arranged in the external environment; and the liquid pumping equipment is connected with the second end of the opening and closing valve, and when the opening and closing valve is in an open state, the liquid pumping equipment can pump out the specimen fixing liquid in the liquid storage barrel. The application provides a sample stationary liquid extraction element, through set up in the on-off valve of bung, one-way breather valve realize that the control gets the break-make of liquid, the effect of the inside and outside atmospheric pressure of balanced stock solution bucket, can carry out the storage and the extraction of sample stationary liquid when guaranteeing that the stock solution bucket is under the encapsulated situation all the time.
Description
Technical Field
The application relates to the field of medical equipment, in particular to a specimen stationary liquid extraction device.
Background
An operating room is provided with a specimen room, and specimen processing liquid (taking 10% formalin as an example) is provided in the specimen room;
At present, when a specimen is fixed by using specimen fixing liquid, a method of directly pouring and filling the specimen into a specimen cup or a specimen bag is commonly used, or liquid is pumped from a liquid storage barrel through a hose by using liquid pumping equipment;
Due to the fact that the method of directly pouring and filling the specimen cup or the specimen bag consumes physical strength of workers, the stationary liquid is easily splashed out to pollute the environment, the extraction amount is not easy to control, the sealing performance of the liquid storage barrel is not guaranteed, the specimen stationary liquid volatilizes to pollute air, and the concentration of the stationary liquid is changed due to long-time volatilization to influence the specimen fixing effect; the method of using the liquid pumping equipment to pump from the liquid storage barrel through the hose improves the controllability of the control extraction amount, but does not ensure the balance of the air pressure inside and outside the liquid storage barrel, and brings inconvenience to the use of the liquid pumping equipment.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application provides a specimen fixed liquid extraction device, which realizes the effects of controlling the on-off of the liquid taking and balancing the air pressure inside and outside the liquid storage barrel through the open/close valve and the one-way vent valve arranged on the barrel cover, and can store and extract the specimen fixed liquid when the liquid storage barrel is always in a sealed state.
in order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
the embodiment of the application provides a sample stationary liquid extraction element, includes:
The liquid storage barrel comprises a barrel body and a barrel cover, and the barrel cover can be matched with the upper end of the barrel body so as to seal the liquid storage barrel;
The first end of the opening and closing valve penetrates through the barrel cover and is fixedly installed on the barrel cover;
a first hose, a first end of which is connected with a first end of the on-off valve, and a second end of which extends downwards to the bottom of the barrel body;
The air outlet end of the one-way vent valve penetrates through the barrel cover and is fixedly arranged on the barrel cover, and the air inlet end of the one-way vent valve is arranged in the external environment; and
And the liquid pumping device is connected with the second end of the opening and closing valve, and when the opening and closing valve is in an open state, the liquid pumping device can pump out the specimen stationary liquid in the liquid storage barrel.
Preferably, the opening-closing valve is a bidirectional opening-closing valve.
Preferably, the specimen stationary liquid extraction element still includes the shallow, the shallow include the support frame and with the pull rod that the support frame is perpendicular to be set up, pull rod fixed mounting in one side of the up end of support frame, the lower terminal surface of support frame is provided with a plurality of wheels, the axial region of wheel is provided with and is used for the braking the brake valve of wheel, the stock solution bucket place in the up end of support frame and can via the shallow transportation.
preferably, the specimen stationary liquid extraction element still includes the fixed band, the fixed band is cyclic annular and is formed by elastic material, the fixed band cover is located the pull rod with the outside of stock solution bucket, the elasticity that produces through elastic deformation makes the stock solution bucket with pull rod in close contact with, thereby it is fixed the stock solution bucket.
Preferably, the upper end of the pull rod is fixedly provided with a support plate parallel to the upper end face of the support frame, and the liquid pumping equipment is placed on the support plate.
Preferably, the draw bar is capable of extending and retracting in a vertical direction so as to adjust a height of the support plate, and thus a height of the pumping device, and the pumping device is connected to the second end of the opening and closing valve through a second hose formed of a light shielding material.
Preferably, the second end of first hose is installed the filter head, the filter head is used for filtering the precipitate in the sample stationary liquid to guarantee the extraction the purity of sample stationary liquid.
Preferably, the reservoir is formed of a light shielding material.
Preferably, the one-way vent valve is a diaphragm type one-way vent valve.
Preferably, the liquid pumping device is an electric water pump and is provided with a power adapter.
drawings
in order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 shows a schematic view of a first perspective of a specimen fixative extraction device;
FIG. 2 shows a schematic view of a second perspective of the specimen fixative extraction device;
FIG. 3 shows a schematic view of a front view of a reservoir barrel;
Fig. 4 shows a schematic view of a cross-section of a reservoir barrel in the direction a-a.
Reference numerals:
1-a liquid storage barrel, 11-a barrel body, 12-a barrel cover, 2-an opening and closing valve, 3-a one-way vent valve, 4-a first hose, 5-a filter head, 6-a liquid pumping device, 61-a second hose, 7-a cart, 71-a support frame, 72-a pull rod, 73-a support plate and 8-a fixing band.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Example one
Referring to fig. 1 to 4, the specimen stationary liquid extracting apparatus provided in this embodiment includes: liquid storage barrel, open and close valve, one-way vent valve, first hose, filter head, drawing liquid equipment, shallow and fixed band. The connection relationship and the operation principle of the above components will be described below, respectively.
The stock solution bucket 1 includes staving 11 and bung 12, and in this embodiment, the outside of the upper end of staving 11 can be formed with the external screw thread, and the inside wall of bung 12 can be formed with the internal thread that matches with this external screw thread, and the two can mutually support to tighten bung 12 in staving 11, guarantee stock solution bucket 1's leakproofness to a certain extent.
In this embodiment, the specimen fixing liquid may be formalin, for example, and in consideration of the volatile property of formalin, the specimen fixing liquid needs to be preserved in a dark place, so that the barrel body 11 and the barrel cover 12 may be formed of a light-shielding material. The light-shielding material referred to herein is a material that can prevent light from passing through or can prevent most of light from passing through.
The upper end of the barrel cover 12 may be formed with a first through hole, the first end of the open/close valve 2 penetrates through the first through hole at the upper end of the barrel cover 12 to be fixedly mounted on the barrel cover 12, when the barrel cover 12 is screwed to the barrel body 11 and the open/close valve 2 is in an open state, the open/close valve 2 communicates the interior of the liquid storage barrel 1 with the external environment, and when the open/close valve 2 is in a closed state, the open/close valve 2 isolates the interior of the liquid storage barrel 1 from the external.
The first hose 4 may be disposed inside the tub 11, a first end of the first hose 4 may be connected to a first end of the opening and closing valve 2, and a second end of the first hose 4 may extend downward to the bottom of the tub 11 for conveying the specimen fixing liquid.
A second through hole can be formed at the upper end of the barrel cover 12, the air outlet end of the one-way vent valve 3 penetrates through the second through hole at the upper end of the barrel cover 12 to be fixedly installed on the barrel cover 12, the air inlet end of the one-way vent valve 3 is arranged in the external environment, and the one-way vent valve 3 can ensure that air can only flow from the air inlet end to the air outlet end but not from the air outlet end to the air inlet end.
Therefore, by using the above characteristics of the one-way vent valve 3, when the barrel cover 12 is screwed to the barrel body 11 and the air pressure inside the liquid storage barrel 1 is reduced (that is, the specimen fixing liquid is extracted by the liquid extraction device as described above), air will enter the liquid storage barrel 1 through the air inlet end and the air outlet end of the one-way vent valve 3, so that the air pressure inside the liquid storage barrel 1 is kept balanced with the air pressure of the external environment, and when the air pressure inside the liquid storage barrel 1 is substantially the same as or greater than the air pressure of the external environment, the air inside the liquid storage barrel 1 cannot be discharged through the air outlet end and the air inlet end of the one-way vent valve 3, thereby ensuring the sealing performance of the liquid storage barrel 1 to a certain extent.
Further, in the embodiment, the liquid extracting device 6 may be connected to the second end of the open/close valve 2, and when the open/close valve 2 is in the open state, the liquid extracting device 6 may be able to extract the specimen fixed liquid inside the liquid storage bucket 1.
In the present embodiment, the on-off valve 2 is a two-way on-off valve, that is, when the on-off valve 2 is in an open state, the specimen fixed liquid can flow from the first end to the second end of the on-off valve 2 and also can flow from the second end to the first end of the on-off valve 2, and the object is to prevent the specimen fixed liquid remaining in the drawing device 6 from volatilizing by allowing the specimen fixed liquid in the drawing device 6 to flow back into the liquid storage barrel 1 when the drawing device 6 stops drawing liquid.
in addition, in this embodiment, the specimen fixed liquid extracting apparatus may further include a cart 7, the cart 7 includes a support frame 71 and a pull rod 72 disposed perpendicular to the support frame 71, the pull rod 72 is fixedly mounted on one side of an upper end surface of the support frame 71, a plurality of wheels are disposed on a lower end surface of the support frame 71, shaft portions of the wheels may be further provided with brake valves (not shown in the drawings) for braking the wheels, the liquid storage barrel 1 is placed on the upper end surface of the support frame 71 and can be transported via the cart 7, and the wheels may be braked by the brake valves when a vehicle needs to be stopped, so as to prevent the wheels from rolling freely and possibly causing the liquid.
Optionally, the fixed liquid extraction element of sample still includes fixed band 8, and fixed band 8 is cyclic annular and is formed by elastic material, and pull rod 72 and the outside of stock solution bucket 1 can be located to fixed band 8 cover, and elasticity through the production of fixed band 8 elastic deformation makes stock solution bucket 1 and pull rod 72 in close contact with to realize stock solution bucket 1's fixed, increased the reliability at transportation stock solution bucket 1 in-process to a certain extent.
In addition, in an embodiment, a supporting plate 73 parallel to the supporting frame 71 may be fixedly installed at the upper end of the pull rod 72, the supporting plate 73 is used for placing the liquid pumping device 6, the supporting plate 73 can be adjusted in height along with the extension and contraction of the pull rod 72 in the vertical direction, so as to adjust the height of the liquid pumping device 6, meanwhile, the liquid pumping device 6 may be connected to the second end of the opening and closing valve 2 through the second hose 61, and the second hose 61 may be formed of a light shielding material, for the same reason that the barrel body 11 and the barrel cover 12 of the liquid storage barrel 1 are formed of the light shielding material, which is not described herein again.
In addition, in an embodiment, the second end of the first hose 4 may further be provided with a filter head 5 for filtering sediment in the extracted sample fixative, thereby ensuring the purity of the extracted sample fixative.
Alternatively, the one-way vent valve 3 may be a diaphragm type one-way vent valve, and the pumping device 6 may be an electric suction pump and be provided with a corresponding power adapter.
example two
Referring to fig. 1 to 4, the specimen stationary liquid extracting apparatus provided in this embodiment includes: liquid storage barrel, open and close valve, one-way vent valve, first hose, filter head, drawing liquid equipment, shallow and fixed band. The connection relationship and the operation principle of the above-described components, and the operation process of the specimen-fixed-liquid extracting apparatus will be described in detail below.
In the present embodiment, the specimen fixing liquid stored in the liquid storage tank 1 may be formalin, for example.
The liquid storage barrel 1 comprises a barrel body 11 and a barrel cover 12, in the embodiment, an external thread can be formed on the outer side of the upper end of the barrel body 11, an internal thread matched with the external thread can be formed on the inner side wall of the barrel cover 12, the inner side wall and the external thread can be matched with each other, so that the barrel cover 12 can be screwed on the barrel body 11, and the sealing performance of the liquid storage barrel 1 is guaranteed to a certain extent.
in addition, in consideration of the property that formalin is volatile, it is necessary to keep it out of the sun, and therefore the tub 11 and the tub cover 12 may be formed of a light-shielding material and may be separately obtained by injection molding.
the upper end of the barrel cover 12 of the liquid storage barrel 1 can be formed with a first through hole and a second through hole which are respectively used for installing the opening and closing valve 2 and the one-way vent valve 3. Wherein, the first end of opening and closing valve 2 runs through first through-hole, fixed mounting in the upper end of the bung 12 of liquid storage barrel 1, and in this embodiment, the first end of opening and closing valve 2 cooperates with first through-hole with interference fit's mode to this guarantees that both cooperation departments are sealed.
Further, in the embodiment, a sealing ring (for example, a sealing ring) (not shown in the figure) may be disposed at a fitting position of the first end of the opening/closing valve 2 and the first through hole, or a sealant may be coated along an outer periphery of the fitting position to achieve sealing;
The second end of the opening and closing valve 2 may be connected to a first end of a first hose 4, the second end of the first hose 4 may extend toward the bottom of the tub and may be connected to a filter head 5, and the filter head 5 may be spaced apart from the bottom of the tub. Aiming at the sample stationary liquid with more precipitates, the filter head 5 can filter the precipitates in the extracted sample stationary liquid to a certain extent and can prevent the precipitates from blocking the liquid extracting equipment 6.
in addition, for the specimen stationary liquid with different acid-base properties, the material of the filter head 5 can be selected from acid-resistant or alkali-resistant material, so as to prolong the service life of the filter head 5.
The air outlet end of the one-way vent valve 3 penetrates through the second through hole and is fixedly arranged at the upper end of the barrel cover 12 of the liquid storage barrel 1, and the air inlet end of the one-way vent valve 3 is arranged in the external environment. In this embodiment, the air outlet end of the one-way vent valve 3 is fitted with the second through hole in an interference fit manner, so as to ensure that the fitting position of the two is sealed.
Further, in an embodiment, a sealing ring (e.g., a sealing ring) (not shown) may be disposed at a fitting portion of the air outlet end of the one-way vent valve 3 and the second through hole, or a sealant may be applied along an outer periphery of the fitting portion to achieve sealing.
by utilizing the above characteristics of the one-way ventilation valve 3, the gas can only flow from the gas inlet end to the gas outlet end and can not flow from the gas outlet end to the gas inlet end; therefore, when the barrel cover 12 is screwed to the barrel body 11 and the air pressure inside the liquid storage barrel 1 is reduced due to the extraction of the specimen stationary liquid (that is, the specimen stationary liquid is extracted by the liquid extraction device as described above), the air enters the inside of the liquid storage barrel 1 through the air inlet end and the air outlet end of the one-way vent valve 3, so that the air pressure inside the liquid storage barrel 1 is kept balanced with the air pressure of the external environment; and when the atmospheric pressure of the inside of liquid storage bucket 1 is roughly the same with the atmospheric pressure of external environment or is greater than the atmospheric pressure of external environment, the gas of the inside of liquid storage bucket 1 will not discharge through the end of giving vent to anger, the inlet end of one-way breather valve 3 to the leakproofness of liquid storage bucket 1 has been guaranteed to a certain extent.
Further, in the present embodiment, the one-way vent valve 3 may be a diaphragm type one-way vent valve, however, it is not limited thereto, and a specific type of the one-way vent valve 3 is not particularly limited as long as the function of the above one-way vent can be satisfied.
Therefore, according to the above description, when the lid 12 of the liquid storage barrel 1 is screwed to the barrel body 11 of the liquid storage barrel 1 and the opening and closing valve 2 is in the closed state, the liquid storage barrel 1 is in the sealed state.
In addition, in this embodiment, the cart 7 may include a support frame 71, a pull rod 72 and a support plate 73, the support frame 71 is a plate-shaped member, the upper and lower end surfaces of the support frame 71 are horizontal surfaces, the lower end surface of the support frame 71 is provided with a plurality of wheels, the shaft portions of the wheels are provided with brake valves (not shown in the figure) for braking the wheels, the reservoir 1 is placed on the upper end surface of the support frame 71 and can be transported through the cart 7, and when a vehicle needs to be parked, the wheels can be braked by the brake valves, so as to prevent the wheels from rolling freely and possibly toppling.
In this embodiment, when stock solution bucket 1 places in support frame 71 top, adopt fixed band 8 to fix stock solution bucket 1, fixed band 8 is cyclic annular and is formed by elastic material, and pull rod 72 and stock solution bucket 1's the outside can be located to fixed band 8 cover, and elasticity through the production of fixed band 8 elastic deformation makes stock solution bucket 1 and pull rod 72 in close contact with, has increased the reliability at transportation stock solution bucket 1 in-process to a certain extent.
In this embodiment, preferably, the inner diameter of the fixing band 8 can be smaller than the minimum outer diameter of the liquid storage barrel 1, that is, when the fixing band 8 is sleeved at any position outside the liquid storage barrel 1 and the pull rod 72, elastic deformation can be generated to achieve the above fixing effect, and the applicability of the fixing band 8 is improved.
However, without being limited thereto, in the present embodiment, the support plate 73 may be formed of a metal material, and therefore, a storage groove or a storage rack (not shown in the drawings) matching the shape and size of the bottom surface of the tank 1 may be formed on the upper end surface of the support plate 73 by casting or welding to place the tank 1.
In this embodiment, the pull rod 72 is perpendicular to the upper end surface of the support frame 71 and is fixedly mounted on one side of the upper end surface of the support frame 71, the pull rod 72 may be made of a metal material, and is fixedly mounted on the support frame 71 by welding, and the pull rod 72 can extend and retract in the vertical direction.
the upper end of pull rod 72 can fixed mounting have a backup pad 73 for place drawing equipment 6, and this backup pad 73 is on a parallel with the setting of support frame 71, can carry out the adjustment of height along with pull rod 72 is flexible in the vertical direction, and then adjusts the height of drawing equipment 6.
When the liquid storage tank 1 is placed on the upper end surface of the support frame 71, the support plate 73 can be placed above the liquid storage tank 1 by stretching the pull rod 72.
In this embodiment, the liquid pumping device 6 is an electric water pump and is equipped with a corresponding power adapter (not shown in the figure), the electric water pump is connected to the second end of the on-off valve 2 through the second hose 61, and when the on-off valve 2 is in an open state, the liquid pumping device 6 can pump out the specimen fixing liquid inside the liquid storage barrel 1.
In the present embodiment, the on-off valve 2 is a two-way on-off valve, that is, when the on-off valve 2 is in an open state, the specimen fixed liquid can flow from the first end to the second end of the on-off valve 2, and can also flow from the second end to the first end of the on-off valve 2; aim at, when electronic suction pump stopped the drawing liquid, make the inside of the fixed liquid backward flow of sample in electronic suction pump, the second hose 61 to stock solution bucket 1, prevent to persist the volatilizing of the fixed liquid of sample in electronic suction pump, the second hose 61.
The second hose 61 is made of a light-shielding material, and the purpose of the second hose is the same as the reason for the barrel body 11 and the barrel cover 12 of the liquid storage barrel 1 made of the light-shielding material, which is not described herein again, and a certain length is reserved in the second hose 61, so that the second hose is matched with the height of the electric water pump to adjust the height.
It should be noted that the materials of the barrel 11, the barrel cover 12, the first hose 4, and the second hose 61 do not react with the specimen fixative, and the properties of the specimen fixative are not affected.
According to the above description, the application of the specimen stationary liquid extraction device provided by the embodiment of the present application comprises the following steps:
Opening the opening and closing valve 2 to an open state, and opening the electric water pump to extract a certain amount of specimen stationary liquid;
And step two, closing the electric water suction pump, and closing the opening and closing valve 2 to a closed state when the electric water suction pump and the specimen fixing liquid in the second hose 61 all flow back to the liquid storage barrel 1.
the above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all changes that can be made in the details of the present application and the equivalents thereof, or directly or indirectly applied to other related technical fields, without departing from the spirit of the present application are intended to be embraced therein.
Claims (10)
1. a specimen-fixing-liquid extracting apparatus, comprising:
The liquid storage barrel comprises a barrel body and a barrel cover, and the barrel cover can be matched with the upper end of the barrel body so as to seal the liquid storage barrel;
The first end of the opening and closing valve penetrates through the barrel cover and is fixedly installed on the barrel cover;
A first hose, a first end of which is connected with a first end of the on-off valve, and a second end of which extends downwards to the bottom of the barrel body;
The air outlet end of the one-way vent valve penetrates through the barrel cover and is fixedly arranged on the barrel cover, and the air inlet end of the one-way vent valve is arranged in the external environment; and
And the liquid pumping device is connected with the second end of the opening and closing valve, and when the opening and closing valve is in an open state, the liquid pumping device can pump out the specimen stationary liquid in the liquid storage barrel.
2. The specimen fixed liquid extraction device according to claim 1, wherein the open/close valve is a bidirectional open/close valve.
3. the specimen stationary liquid extraction device according to claim 1, further comprising a cart, wherein the cart comprises a support frame and a pull rod arranged perpendicular to the support frame, the pull rod is fixedly mounted on one side of an upper end surface of the support frame, a plurality of wheels are arranged on a lower end surface of the support frame, a brake valve for braking the wheels is arranged on a shaft portion of each wheel, and the liquid storage barrel is placed on the upper end surface of the support frame and can be transported by the cart.
4. The specimen stationary liquid extracting apparatus according to claim 3, further comprising a fixing band which is annular and formed of an elastic material, the fixing band being sleeved on the outer sides of the pull rod and the liquid storage barrel, the liquid storage barrel being brought into close contact with the pull rod by an elastic force generated by elastic deformation, thereby fixing the liquid storage barrel.
5. the specimen fixed liquid extraction device according to claim 3, wherein a support plate parallel to the upper end face of the support frame is fixedly mounted to an upper end of the pull rod, and the liquid extraction apparatus is placed on the support plate.
6. The specimen fixed liquid extraction device according to claim 5, wherein the pull rod is capable of being extended and contracted in a vertical direction to adjust a height of the support plate and thus a height of the liquid extraction apparatus, the liquid extraction apparatus being connected to the second end of the opening and closing valve through a second hose, the second hose being formed of a light shielding material.
7. The specimen fixative extraction device of any one of claims 1-6, wherein a filter head is mounted to the second end of the first hose for filtering sediment in the specimen fixative to ensure purity of the extracted specimen fixative.
8. the specimen fixing liquid extraction device according to any one of claims 1 to 6, wherein the liquid storage barrel is formed of a light shielding material.
9. The specimen fixing liquid extraction device according to any one of claims 1 to 6, wherein the one-way vent valve is a diaphragm-type one-way vent valve.
10. The specimen stationary liquid extracting apparatus according to any one of claims 1 to 6, wherein the liquid drawing device is an electric water pump and is provided with a power adapter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920666308.8U CN209778284U (en) | 2019-05-09 | 2019-05-09 | Specimen stationary liquid extraction element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920666308.8U CN209778284U (en) | 2019-05-09 | 2019-05-09 | Specimen stationary liquid extraction element |
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| CN209778284U true CN209778284U (en) | 2019-12-13 |
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| CN201920666308.8U Active CN209778284U (en) | 2019-05-09 | 2019-05-09 | Specimen stationary liquid extraction element |
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