CN219239619U - Plunger assembly and sample processing kit - Google Patents
Plunger assembly and sample processing kit Download PDFInfo
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- CN219239619U CN219239619U CN202223597720.XU CN202223597720U CN219239619U CN 219239619 U CN219239619 U CN 219239619U CN 202223597720 U CN202223597720 U CN 202223597720U CN 219239619 U CN219239619 U CN 219239619U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The utility model provides a plunger assembly and a sample processing kit, wherein a plunger body comprises a main body column and a sealing column, the main body column is provided with a hollow cavity with an opening at one end, the hollow cavity is used for allowing a driving structure to extend in and be in interference fit with the driving structure, and the section size of the sealing column is smaller than that of the main body column; the flexible sealing sleeve is sleeved outside the plunger body, the main body column protrudes outwards to form a sealing baffle plate, the sealing baffle plate is located between the sealing column and the opening and has a section size larger than the orifice size of the liquid injection hole, the sealing baffle plate is used for sealing the orifice and resisting the flexible sealing sleeve, and the flexible sealing sleeve protrudes outwards to form a sealing convex ring which is used for being in interference fit with the liquid injection hole. According to the utility model, through the cooperation between the plunger body and the flexible sealing sleeve, the plunger body can ensure that the flexible sealing sleeve is driven to be pressed down in place by the plunger body, and meanwhile, the sealing effect of the plunger assembly is improved through multiple sealing.
Description
Technical Field
The utility model belongs to the technical field of sample processing, and particularly relates to a plunger assembly and a sample processing kit.
Background
In biomedical and chemical production, sample processing and detection are generally required. The solution such as a sample is required to be injected into a designated nucleic acid reaction cavity, and the nucleic acid reaction cavity is sealed through a plunger, but the existing plunger structure is generally of a straight cylindrical structure, so that a good sealing effect cannot be achieved, deflection easily occurs in the pressing process, the plunger cannot be pressed in place, and the condition that the solution is polluted by external aerosol easily occurs. In addition, the condition that the detection is influenced by carrying bubbles with the solution easily occurs, and the detection accuracy is reduced. In the prior art, a centrifugal machine is generally adopted to centrifugally remove bubbles from a sample solution, so that the operation flow is complex and the time consumption is long.
Disclosure of Invention
The utility model mainly aims to provide a plunger assembly and a sample processing kit, and aims to solve the technical problems that a plunger structure in the prior art is poor in sealing effect and cannot be pressed down in place.
In order to achieve the above object, the present utility model provides a plunger assembly for a sample processing kit with a liquid filling hole, comprising: the plunger body comprises a main body column and a sealing column, wherein the main body column is provided with a hollow cavity with an opening at one end, the hollow cavity is used for allowing a driving structure to extend in and be in interference fit with the driving structure, and the section size of the sealing column is smaller than that of the main body column; the flexible sealing sleeve is sleeved outside the plunger body, the main body column protrudes outwards to form a sealing baffle plate, the sealing baffle plate is located between the sealing column and the opening and has a section size larger than the orifice size of the liquid injection hole, the sealing baffle plate is used for sealing the orifice and resisting the flexible sealing sleeve, and the flexible sealing sleeve protrudes outwards to form a sealing convex ring which is used for being in interference fit with the liquid injection hole.
In the embodiment of the utility model, the flexible sealing sleeve comprises a mounting cylinder, a sealing cylinder and a guide head which are sequentially connected, wherein the mounting cylinder is sleeved outside the main body column, the sealing cylinder is sleeved outside the sealing column, and the section size of the guide head is gradually reduced from the sealing cylinder to a direction away from the mounting cylinder.
In the embodiment of the utility model, the number of the sealing convex rings is multiple, and the plurality of the sealing convex rings are arranged outside the sealing cylinder at intervals along the extending direction of the flexible sealing sleeve.
In an embodiment of the utility model, one of the sealing collars is arranged close to the guide head.
In the embodiment of the utility model, the guide head is provided with an arc-shaped guide surface in sliding contact fit with the liquid injection hole.
In the embodiment of the utility model, the plunger assembly further comprises a guide plate, the guide plate is arranged outside the sealing column and connected with the main body column, the flexible sealing sleeve is provided with a clamping hole clamped with the guide plate, the size of the guide plate is gradually reduced from the main body column along the extending direction of the sealing column, and the guide plate extends out of the clamping hole and is used for guiding and matching with the liquid injection hole.
In the embodiment of the utility model, the outside of the main body column is also provided with a guide bar connected with the guide plate, and the inner wall of the flexible sealing sleeve is provided with a guide groove in guide fit with the guide bar.
In the embodiment of the utility model, the number of the guide plates is a plurality of the guide plates, and the plurality of the guide plates are arranged at intervals along the circumferential direction of the sealing column.
In the embodiment of the utility model, the outer wall of the sealing column is sunken to form a limit ring groove, and the flexible sealing sleeve is provided with a limit protrusion in limit fit with the limit ring groove; and/or, the plunger body further comprises an annular reinforcing rib which is annularly arranged outside the main body column, and the annular reinforcing rib is arranged close to the opening.
The utility model also provides a sample processing kit which comprises a main box body, a nucleic acid reaction tube with a reaction cavity and the plunger assembly, wherein the liquid injection hole is formed in the main box body and is used for being in sealing fit with the plunger assembly, the liquid injection hole is communicated with the reaction cavity, and the reaction cavity is used for containing a solution.
Through the technical scheme, the plunger assembly provided by the embodiment of the utility model has the following beneficial effects:
when the plunger assembly is used for liquid injection sealing, the plunger body and the flexible sealing sleeve can be assembled first, the sealing convex ring on the flexible sealing sleeve performs interference sealing on the liquid injection hole, and meanwhile, the sealing baffle on the main body column seals the orifice of the liquid injection hole, so that a double sealing structure is formed, and the close fit and sealing effect between the plunger assembly and the liquid injection hole are improved. According to the utility model, through the cooperation between the plunger body and the flexible sealing sleeve, the plunger body can ensure that the flexible sealing sleeve is driven to be pressed down in place by the plunger body, and meanwhile, the sealing effect of the plunger assembly is improved through multiple sealing.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide an understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a schematic view of a plunger assembly according to one embodiment of the present utility model;
FIG. 2 is a schematic illustration of a plunger body of a plunger assembly according to one embodiment of the present utility model;
figure 3 is a schematic illustration of the structure of a flexible boot seal of a plunger assembly in accordance with one embodiment of the present utility model;
figure 4 is a schematic cross-sectional view of a flexible boot seal of a plunger assembly in accordance with one embodiment of the present utility model;
FIG. 5 is a schematic diagram of a sample processing kit according to an embodiment of the present utility model.
Description of the reference numerals
Reference number designation number designation
200. Sample processing kit 30 flexible boot seal
210. Main box 301 sealing convex ring
220. Liquid injection hole 302 clamping hole
230. Temporary storage hole 303 mounting barrel
20. Plunger body 304 sealing cylinder
201. Main body column 305 guide head
202. Spacing arch of hollow cavity 306
203. Sealing post 307 guide groove
204. Sealing baffle 308 step groove
205. Guide plate of limit ring groove 40
206. Sealing plane of guide strip 401
207. Annular reinforcing rib
Detailed Description
Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present utility model.
The plunger assembly according to the present utility model is described below with reference to the accompanying drawings. As shown in fig. 1 to 4, the plunger assembly for the sample processing kit 200 with the liquid injection hole 220 includes the plunger body 20, the flexible sealing sleeve 30, and the guide plate 40; the plunger body 20 comprises a main body column 201 and a sealing column 203, the main body column 201 is provided with a hollow cavity 202 with an opening at one end, the hollow cavity 202 is used for allowing a driving structure to extend into and be in interference fit with the driving structure, and the section size of the sealing column 203 is smaller than that of the main body column 201; the flexible sealing sleeve 30 is sleeved outside the plunger body 20, the main body column 201 protrudes outwards to form a sealing baffle 204, the sealing baffle 204 is located between the sealing column 203 and the opening and has a section size larger than the orifice size of the liquid injection hole 220, the sealing baffle 204 is used for sealing the orifice and resisting the flexible sealing sleeve 30, and the flexible sealing sleeve 30 protrudes outwards to form a sealing convex ring 301 used for being in interference fit with the liquid injection hole 220.
It can be appreciated that, as long as the plunger assembly in this embodiment is used for the sample processing kit 200, the plunger assembly can be driven by a driving structure to extend into the liquid injection hole 220, push the solution in the nucleic acid kit to the designated reaction cavity, and seal the liquid injection hole 220 by adopting the plunger assembly, the driving structure can be a pump head of a liquid transfer pump in the prior art, and can extend into the hollow cavity 202 of the main body column 201 and be in interference fit with the hollow cavity 202, so that the stability of the cooperation of the plunger assembly and the driving structure can be improved, and the efficiency of solution injection can be improved. The plunger body 20 extends along the up-down direction and is in a shape of big end down, in one embodiment, the guide plate 40 and the plunger body 20 are integrally formed, the flexible sealing sleeve 30 can be a flexible rubber sleeve, and in other embodiments, the material of the flexible sealing sleeve 30 can be set according to the actual use requirement.
When the plunger assembly in this embodiment is used for liquid injection sealing, the plunger body 20 and the flexible sealing sleeve 30 can be assembled first, the sealing convex ring 301 on the flexible sealing sleeve 30 performs interference sealing on the liquid injection hole 220, and meanwhile, the sealing baffle 204 on the main body column 201 seals the orifice of the liquid injection hole 220, so that a double sealing structure is formed, and the close fit and sealing effect between the plunger assembly and the liquid injection hole 220 are improved. In this embodiment, through the cooperation between the plunger body 20 and the flexible sealing sleeve 30, when the plunger body 20 drives the flexible sealing sleeve 30 to press down in place, the sealing effect of the plunger assembly is improved through multiple sealing.
In an embodiment, the plunger assembly includes a guide plate 40 disposed outside the sealing post 203 and connected to the main body post 201, the flexible sealing sleeve 30 is provided with a clamping hole 302 clamped with the guide plate 40, the size of the guide plate 40 gradually decreases from the main body post 201 along the extending direction of the sealing post 203, and the guide plate 40 extends from the clamping hole 302 and is used for guiding and matching with the liquid injection hole 220. The deflector 40 is arranged outside the sealing column 203 and is connected with the main body column 201, so that the matching stability of the deflector 40 and the plunger body 20 is ensured, under the condition that the deflector 40 and the liquid injection hole 220 are matched in a guiding manner, the plunger body 20 can be stably pressed down, the size of the deflector 40 is gradually reduced from the main body column 201 along the extending direction of the sealing column 203, the deflector 40 can conveniently extend into the liquid injection hole 220 to ensure that the plunger body 20 is pressed down in place relatively to the liquid injection hole 220, the flexible sealing sleeve 30 is provided with a clamping hole 302 which is clamped with the deflector 40, and the deflector 40 can be matched with the liquid injection hole 220 in a guiding manner after extending out of the clamping hole 302, so that the matching tightness of the flexible sealing sleeve 30 and the deflector 40 is improved.
Specifically, as shown in fig. 3 and 4, the flexible sealing sleeve 30 includes a mounting cylinder 303, a sealing cylinder 304 and a guide head 305, which are sequentially connected, the mounting cylinder 303 is sleeved outside the main body column 201, the sealing cylinder 304 is sleeved outside the sealing column 203, and the cross-sectional dimension of the guide head 305 is gradually reduced from the sealing cylinder 304 in a direction away from the mounting cylinder 303. In one embodiment, the sealing baffle 204 is annular, and in other embodiments, the shape of the sealing baffle 204 may be rectangular, diamond-shaped or hexagonal according to practical requirements, which is not limited by the present utility model. In this embodiment, the flexible sealing sleeve 30 is set to a three-section structure, the connection stability between the flexible sealing sleeve 30 and the plunger body 20 can be ensured through the connection between the mounting cylinder 303 and the column guide plate 40, the sealing convex ring 301 is arranged on the sealing cylinder 304, the sealing effect of the sealing cylinder 304 on the liquid injection hole 220 can be ensured, the guide head 305 is set to a big-end-up structure, the flexible sealing sleeve 30 can conveniently extend into the liquid injection hole 220, the pressing smoothness of the plunger assembly relative to the liquid injection hole 220 is ensured, the lengths of the sealing cylinder 304 and the guide head 305 are greater than the length of the liquid injection hole 220, and the guide head 305 can be abutted against the bottom wall of the liquid injection hole 220, so that the matching compactness between the plunger assembly and the liquid injection hole 220 is improved.
In an embodiment, the number of the sealing convex rings 301 is plural, and the plurality of sealing convex rings 301 are disposed outside the sealing cylinder 304 at intervals along the extending direction of the flexible sealing sleeve 30. The number of the specific sealing convex rings 301 can be set according to actual use requirements, the utility model is not limited, the sealing convex rings 301 in the embodiment are circular, and can play a role of an O-shaped sealing ring, so that interference sealing is performed on the liquid injection hole 220, and the sealing effect of the liquid injection hole 220 can be further improved due to the fact that the plurality of sealing convex rings 301 are matched with one another.
It should be noted that one sealing convex ring 301 of the plurality of sealing convex rings 301 is disposed close to the guide head 305. As shown in fig. 2, in this embodiment, two sealing convex rings 301 are provided, where one sealing convex ring 301 is located in the middle of the sealing cylinder 304 and the other sealing convex ring 301 is located next to the guide head 305, so as to improve the connection stability between the guide head 305 and the sealing cylinder 304, thereby improving the structural strength of the flexible sealing sleeve 30.
In one embodiment, the guide head 305 is provided with an arcuate guide surface that slidably engages the pouring orifice 220. The guide head 305 in this embodiment is hemispherical, and can improve the smoothness of the relative sliding between the guide head 305 and the wall of the injection hole 220, so as to ensure that the plunger assembly can be pressed down in place, and meanwhile, the situation of scratch between the guide head 305 and the wall of the injection hole 220 can be avoided.
As shown in fig. 5, in the embodiment of the present utility model, the outer wall of the sealing post 203 is recessed to form a limiting ring groove 205, and the flexible sealing sleeve 30 is provided with a limiting protrusion 306 in a limiting fit with the limiting ring groove 205. In this embodiment, the limit protrusion 306 of the flexible sealing sleeve 30 is in limit fit with the limit ring groove 205 of the sealing post 203, so that the connection stability of the flexible sealing sleeve 30 and the plunger body 20 can be further improved, the situation that the flexible sealing sleeve 30 falls off or shifts relative to the plunger body 20 can be avoided, and the use stability of the plunger assembly can be improved.
In one embodiment, the body pillar 201 is further provided with a guide bar 206 connected to the guide plate 40, and the inner wall of the flexible sealing sleeve 30 is provided with a guide groove 307 in guide fit with the guide bar 206. As shown in fig. 2, the cross section of the guide strip 206 in this embodiment is rectangular, and the guide strip 206 extends from the sealing baffle 204 to the guide plate 40 and protrudes outwards, and the thickness of the guide strip 206 is smaller than that of the guide plate 40, so that the guide strip 206 can be prevented from affecting the guide fit of the guide plate 40 and the liquid injection hole 220, the connection strength between the main body column 201 and the guide plate 40 can be improved, and the smoothness of the assembly between the plunger body 20 and the flexible sealing sleeve 30 can be improved by virtue of the fit of the guide groove 307 and the guide strip 206.
As shown in fig. 2, in the embodiment of the present utility model, the number of the guide plates 40 is plural, and the plural guide plates 40 are arranged at intervals along the circumferential direction of the seal column 203. The four guide plates 40 in this embodiment are evenly spaced along the circumference of the sealing post 203, and the four guide plates 40 are flat and sheet-shaped, so that the thickness of meat is even, and under the condition of integral injection molding of the plunger body 20, the shrinkage of injection molding can be prevented, thereby ensuring the manufacturing precision of the guide plates 40, avoiding the condition that the adaptation precision of the guide plates 40 and the liquid injection holes 220 is reduced, and the plurality of guide plates 40 are mutually matched, so that the deflection of the plunger body 20 in the pressing process can be avoided, and the use stability of the plunger assembly pressing liquid injection is improved.
In another embodiment, the plunger body 20 further includes an annular rib 207 disposed around the outer side of the main column 201, and the annular rib 207 is disposed near the opening. The annular reinforcing rib 207 in this embodiment gradually expands from the main body column 201, and the thickness of the annular reinforcing rib 207 is greater than that of the main body column 201, so that the structural strength of the plunger body 20 is ensured through the annular reinforcing rib 207 on the basis of the hollow arrangement of the main body column 201, the situation that the plunger body 20 is broken due to low strength is avoided, and the use stability of the plunger assembly is improved. In an embodiment, the outer wall of the flexible sealing sleeve 30 is recessed inwards to form a step groove 308, which can be matched and clamped with the step protrusion of the liquid injection hole 220, so that the matching tightness between the flexible sealing sleeve 30 and the liquid injection hole 220 is improved.
As shown in fig. 5, the present utility model further provides a sample processing kit 200, where the sample processing kit 200 includes a main case 210, a nucleic acid reaction tube with a reaction chamber, and a plunger assembly as described above, and a liquid injection hole 220 is formed in the main case 210 and is used for sealing cooperation with the plunger assembly, the liquid injection hole 220 is communicated with the reaction chamber, and the reaction chamber is used for accommodating a solution. The specific structure of the plunger assembly refers to the above embodiments, and since the sample processing kit 200 adopts all the technical solutions of all the embodiments, at least has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.
In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be in either fixed or removable communication, or may be integral, for example; may be in mechanical communication or may be in electrical communication or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (10)
1. A plunger assembly for a sample processing kit (200) with a fill port (220), the plunger assembly comprising:
the plunger body (20) comprises a main body column (201) and a sealing column (203), wherein a hollow cavity (202) with an opening at one end is formed in the main body column (201), the hollow cavity (202) is used for enabling a driving structure to extend into and be in interference fit with the driving structure, and the cross section size of the sealing column (203) is smaller than that of the main body column (201);
the flexible sealing sleeve (30) is sleeved outside the plunger body (20), the main body column (201) protrudes outwards to form a sealing baffle plate (204), the sealing baffle plate (204) is located between the sealing column (203) and the opening, the section size of the sealing baffle plate is larger than the orifice size of the liquid injection hole (220), the sealing baffle plate (204) is used for sealing the orifice and resisting the flexible sealing sleeve (30), and the flexible sealing sleeve (30) protrudes outwards to form a sealing convex ring (301) used for being in interference fit with the liquid injection hole (220).
2. The plunger assembly according to claim 1, wherein the flexible sealing sleeve (30) comprises a mounting cylinder (303), a sealing cylinder (304) and a guide head (305) which are sequentially connected, the mounting cylinder (303) is sleeved outside the main body column (201), the sealing cylinder (304) is sleeved outside the sealing column (203), and the cross-sectional dimension of the guide head (305) is gradually reduced from the sealing cylinder (304) to a direction away from the mounting cylinder (303).
3. The plunger assembly according to claim 2, wherein the number of sealing collars (301) is plural, and the plurality of sealing collars (301) are disposed outside the sealing cylinder (304) at intervals along the extending direction of the flexible sealing sleeve (30).
4. A plunger assembly as claimed in claim 3, wherein one (301) of the plurality of sealing collars (301) is disposed adjacent the guide head (305).
5. The plunger assembly of claim 2, wherein the guide head (305) is provided with an arcuate guide surface in sliding contact engagement with the injection port (220).
6. The plunger assembly according to any one of claims 1 to 5, further comprising a guide plate (40), wherein the guide plate (40) is disposed outside the sealing post (203) and is connected with the main body post (201), the flexible sealing sleeve (30) is provided with a clamping hole (302) clamped with the guide plate (40), the guide plate (40) is gradually reduced in size from the main body post (201) along the extending direction of the sealing post (203), and the guide plate (40) extends out from the clamping hole (302) and is used for guiding and matching with the liquid injection hole (220).
7. The plunger assembly according to claim 6, wherein the main body column (201) is further provided with a guide strip (206) connected with the guide plate (40), and the inner wall of the flexible sealing sleeve (30) is provided with a guide groove (307) in guide fit with the guide strip (206).
8. The plunger assembly of claim 6, wherein the number of guide plates (40) is plural, and a plurality of the guide plates (40) are arranged at intervals along the circumferential direction of the seal post (203).
9. The plunger assembly according to any one of claims 1 to 5, wherein the outer wall of the sealing post (203) is recessed to form a limiting ring groove (205), and the flexible sealing sleeve (30) is provided with a limiting protrusion (306) in limiting fit with the limiting ring groove (205);
and/or the number of the groups of groups,
the plunger body (20) further comprises annular reinforcing ribs (207) which are arranged outside the main body column (201) in a surrounding mode, and the annular reinforcing ribs (207) are arranged close to the opening.
10. A sample processing kit, characterized in that, the sample processing kit (200) comprises a main box body (210), a nucleic acid reaction tube with a reaction cavity and the plunger assembly of any one of claims 1 to 9, the liquid injection hole (220) is arranged on the main box body (210) and is used for being in sealing fit with the plunger assembly, the liquid injection hole (220) is communicated with the reaction cavity, and the reaction cavity is used for containing a solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223597720.XU CN219239619U (en) | 2022-12-30 | 2022-12-30 | Plunger assembly and sample processing kit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223597720.XU CN219239619U (en) | 2022-12-30 | 2022-12-30 | Plunger assembly and sample processing kit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219239619U true CN219239619U (en) | 2023-06-23 |
Family
ID=86839839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223597720.XU Active CN219239619U (en) | 2022-12-30 | 2022-12-30 | Plunger assembly and sample processing kit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219239619U (en) |
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2022
- 2022-12-30 CN CN202223597720.XU patent/CN219239619U/en active Active
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