Cup cover structure for sputum enrichment cup and sputum enrichment cup

Abstract

The utility model relates to the field of medical detection instruments, and discloses a cup cover structure for a sputum enrichment cup and the sputum enrichment cup. The cup cover structure for the sputum enrichment cup comprises a cup cover and an enrichment membrane assembly, the cup cover is used for covering a cup body of the sputum enrichment cup; the enrichment membrane assembly is removably arranged on one side of the cup cover and extends in the direction away from the cup cover; wherein the enrichment membrane assembly is used for extending into the cup body when the cup cover covers the cup body. According to the cup cover structure for the sputum enrichment cup, the mounting and dismounting processes of the enrichment membrane assembly are greatly simplified, the detection efficiency is improved, secondary pollution is avoided, and the subsequent detection precision is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of medical testing instruments, and in particular, to a cup cover structure for a sputum enrichment cup and a sputum enrichment cup. Background Art

[0002] During clinical treatment and disease screening, the detection of some pathogens usually requires the extraction of sputum from patients for testing. Sputum collection usually requires patients to cough deeply to produce sputum. Medical staff will provide a container to the patient, and the patient coughs the sputum directly into the container. Sometimes, if the patient cannot produce enough sputum, medical staff may use endotracheal intubation or gastric tube to extract sputum. After the sputum is extracted, the sputum is liquefied, and then the liquefied sputum needs to be enriched, and finally the enriched specimen is tested.

[0003] Among the existing patents, the patent number is 201910932553.3, the publication date is March 30, 2021, and the patent name is a double-layer membrane filter cup and its application. The double-layer membrane filter cup includes a filter cup body, an annular structure and a connecting seat connected in sequence from top to bottom. The filter cup body and the annular structure are detachably connected and a large-pore filter membrane is arranged between them. The annular structure and the connecting seat are detachably connected and a small-pore filter membrane is arranged between them. When in use, it is necessary to first mix the sputum sample with the sputum alkaline digestive fluid to obtain the digested sputum sample, then assemble the double-layer membrane filter cup and put the hollow cylindrical structure at the bottom of the double-layer membrane filter cup into the negative pressure filtration device, and then add the digested sputum sample into the filter cup body, start negative pressure filtration, and finally take out the small-pore filter membrane for detection.

[0004] Thus, the double-layer membrane filter cup provided by the existing patent has a complicated installation and removal process of the filter membrane, which reduces the detection efficiency, and is prone to secondary contamination of the filter membrane during the installation and removal process, thereby affecting the test results. Utility Model Content

[0005] The purpose of the present application is to provide a cup cover structure for a sputum enrichment cup and a sputum enrichment cup, so as to solve the problems of low detection efficiency and secondary contamination caused by the complicated filter membrane disassembly and assembly process in the prior art.

[0006] To achieve the above objectives, in a first aspect, the present application provides a cup cover structure for a sputum enrichment cup, comprising:

[0007] A cup cover, used to cover the cup body of the sputum enrichment cup; and

[0008] An enrichment membrane assembly is removably disposed on one side of the cup cover and extends in a direction away from the cup cover;

[0009] Wherein, the enrichment membrane assembly is used to extend into the cup body when the cup cover is arranged on the cup body.

[0010] As a further improvement of the above technical solution:

[0011] In a possible implementation manner, a connector is provided on a side of the cup cover close to the cup body, and the enrichment membrane assembly is removably disposed on the connector.

[0012] In a possible implementation manner, the enrichment membrane assembly is detachably connected to the connector.

[0013] In a possible implementation manner, a breakable notch is provided between the enrichment membrane assembly and the connector.

[0014] In a possible implementation, the enrichment membrane assembly includes a membrane frame, and the membrane frame and the connector are an integral structure.

[0015] In a possible implementation, the enrichment membrane assembly includes a membrane frame and an enrichment filter membrane covered on the membrane frame, and one end of the membrane frame away from the enrichment filter membrane is connected to the cup cover.

[0016] In a possible implementation, the membrane frame is provided with a plurality of hollow hole areas, and the enrichment filter membrane covers all of the hollow hole areas.

[0017] In a possible implementation manner, a boss body is provided on the cup cover, and a liquid storage cavity for sealing liquid is provided in the boss body.

[0018] In a possible implementation manner, the opening of the liquid storage cavity faces the filter port and is provided with a sealing member;

[0019] Wherein, a conducting structure for puncturing or scratching the sealing member is provided in the cup body.

[0020] To achieve the above-mentioned purpose, in a second aspect, the present application provides a sputum enrichment cup, comprising a cup cover structure for a sputum enrichment cup according to the above-mentioned first aspect.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present application provides a cup cover structure for a sputum enrichment cup and a sputum enrichment cup, wherein the cup cover structure for the sputum enrichment cup is provided with a removable enrichment membrane assembly on the side of the cup cover close to the cup body, and when the cup cover is provided on the cup body, the enrichment membrane assembly can extend into the cup body to cover the filter port in the cup body, so that all sputum passing through the filter port can be enriched by the enrichment membrane assembly, and after the enrichment is completed, only the cup cover needs to be removed, and the enrichment membrane assembly can be taken out together with the cup cover, and then the enrichment membrane assembly can be removed from the cup cover by specific equipment or tools. In this way, the cup cover structure for the sputum enrichment cup provided by the present application greatly simplifies the installation and disassembly process of the enrichment membrane assembly, improves the detection efficiency, avoids secondary contamination, and ensures the subsequent detection accuracy.

[0023] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present application. It should be understood that the following drawings only show certain embodiments of the present application and should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work. In the drawings:

[0025] Figure 1 A front view of a sputum enrichment cup provided in an embodiment of the present application is shown;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of a cup cover structure for a sputum enrichment cup provided by an embodiment of the present application is shown;

[0027] Figure 3 Shows Figure 2 A schematic diagram of the local structure of the connection between the enrichment membrane assembly and the connector in the cup cover structure of the sputum enrichment cup shown;

[0028] Figure 4 A schematic diagram of the three-dimensional structure of another cup cover structure for a sputum enrichment cup provided in an embodiment of the present application is shown;

[0029] Figure 5 A cross-sectional view of a sputum enrichment cup provided by an embodiment of the present application and equipped with a cup cover is shown;

[0030] Figure 6 Shows Figure 5 Schematic diagram of the breakdown of the sputum enrichment cup shown.

[0031] Description of reference numerals:

[0032] 100, cup body; 110, liquefaction chamber; 111, gradually contracting section; 120, filter port; 130, convex teeth; 140, external thread; 150, piston chamber; 151, gradually expanding section;

[0033] 200, cup cover; 210, boss body; 211, liquid storage chamber; 220, internal thread; 230, connector; 240, sealing member;

[0034] 300, enrichment membrane assembly; 301, notch; 310, membrane frame; 311, hollow hole area; 312, vertical pole; 320, enrichment filter membrane;

[0035] 400, piston assembly; 410, piston rod; 420, piston rubber head. DETAILED DESCRIPTION

[0036] The specific implementation of the embodiment of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present application, and is not used to limit the embodiment of the present application.

[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0038] In the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiments.

[0042] Example

[0043] See also Figure 1 , Figure 2 and Figure 3 This embodiment provides a sputum enrichment cup, including a cup cover structure for the sputum enrichment cup (hereinafter referred to as the cup cover structure), a cup body 100 and a piston assembly 400.

[0044] Please also read Figure 4 and Figure 5 The cup body 100 is provided with a liquefaction chamber 110 and a piston chamber 150 which are arranged in opposite positions. The liquefaction chamber 110 and the piston chamber 150 are interconnected to form a filter port 120 .

[0045] In this embodiment, the cup body 100 is a columnar structure, the liquefaction chamber 110 and the piston chamber 150 are respectively located at the two ends of the cup body 100, and the liquefaction chamber 110 and the piston chamber 150 are connected to the outside. And it can be understood that the liquefaction chamber 110 and the piston chamber 150 share the filter port 120, so that the filter port 120 is both the outlet of the liquefaction chamber 110 and the inlet of the piston chamber 150. Thereby, the axial size of the cup body 100 can be reduced, making the overall structure of the sputum enrichment cup more compact.

[0046] See also Figure 2 , Figure 3 and Figure 4 The cup cover structure includes a cup cover 200 and an enrichment membrane assembly 300. The cup cover 200 is used to cover the cup body 100 of the sputum enrichment cup. The enrichment membrane assembly 300 is removably arranged on a side of the cup cover 200 close to the cup body 100, and the enrichment membrane assembly 300 is used to cover the filter port 120 when the cup cover 200 is covered on the cup body 100.

[0047] The piston assembly 400 is disposed in the piston chamber 150 and is interference fit with the piston chamber 150. In the initial state, the piston assembly 400 does not move relative to the piston chamber 150, so that the piston rubber head 420 of the piston assembly 400 abuts against the top wall of the piston chamber 150 and forms a blockage for the filter port 120. The enrichment membrane assembly 300 is detachably disposed at the bottom of the liquefaction chamber 110 and covers the filter port 120.

[0048] It can be understood that when in use, the piston assembly 400 is first placed in the initial position, so that the piston rubber head 420 of the piston assembly 400 abuts against the top wall of the piston cavity 150 and forms a blockage for the filter port 120, and then the sputum sample and the sputum liquefaction liquid are injected into the liquefaction cavity 110. Since the piston rubber head 420 blocks the filter port 120, it can ensure that the sputum sample is liquefied in the liquefaction cavity 110 (the liquefaction of the sputum sample can be accelerated by stirring and vibrating), and the cup cover 200 is covered at the same time to make the sputum liquefaction liquid The collecting membrane assembly 300 covers the filter port 120, and after liquefaction is completed, the piston rubber head 420 of the piston assembly 400 is driven to perform piston movement relative to the piston chamber 150, so that the liquefied liquid in the liquefaction chamber 110 is completely drawn into the piston chamber 150 through the enrichment membrane assembly 300, thereby completing the enrichment of the sputum sample, and finally removing the cup cover 200. The enrichment membrane assembly 300 can be taken out together with the cup cover 200, and then the enrichment membrane assembly 300 can be removed from the cup cover 200 through specific equipment or tools.

[0049] Compared with the prior art, in the sputum enrichment cup provided in this embodiment, the installation and disassembly process of the enrichment membrane assembly 300 is greatly simplified by the cup cover structure, thereby improving the detection efficiency, avoiding secondary contamination, and ensuring the subsequent detection accuracy.

[0050] In addition, the sputum enrichment cup provided in this embodiment integrates the liquefaction and enrichment of sputum samples, and no external equipment is required, so the operation is simpler and the operation efficiency is improved. Furthermore, the cup body 100 is designed as an integrated structure, and integrates the liquefaction chamber 110 and the piston chamber 150, which is simpler in structure, saves the assembly process between the two chambers, and greatly improves the operation efficiency.

[0051] In order to more clearly describe the technical solution of the present application, this embodiment describes the various structural components in the sputum enrichment cup, as follows:

[0052] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The cup cover 200 is detachably disposed on the cup body 100 to block the cavity opening of the liquefaction chamber 110 to prevent the liquid in the liquefaction chamber 110 from splashing out from the cavity opening of the liquefaction chamber 110 during operation.

[0053] In some embodiments, the cup cover 200 is buckled or snap-fitted to the cup body 100 .

[0054] In this embodiment, the cup cover 200 and the cup body 100 are matched with a thread pair, so that the cup cover 200 can rotate relative to the cup body 100 and move in the direction of the rotation axis. Specifically, the inner peripheral wall of the cup cover 200 is provided with an internal thread 220, and the outer peripheral wall of the cup body 100 is provided with an external thread 140 matched with the internal thread 220.

[0055] Furthermore, in this embodiment, a connector 230 is provided on one side of the cup cover 200 close to the filter port 120 , and the connector 230 is connected to the enrichment membrane assembly 300 .

[0056] The enrichment membrane assembly 300 includes a membrane frame 310 and an enrichment filter membrane 320 covering the membrane frame 310. The membrane frame 310 is connected to the connector 230, the overall shape of the membrane frame 310 is adapted to the shape of the filter port 120, and the membrane frame 310 is provided with a plurality of hollow hole areas 311. The enrichment filter membrane 320 is arranged on the membrane frame 310 and covers all the hollow hole areas 311.

[0057] It can be understood that the provision of multiple hollow hole areas 311 can form a supporting skeleton between two adjacent hollow hole areas 311 to better support the enrichment filter membrane 320, and the hollow hole area 311 can increase the filtration area of ​​the enrichment filter membrane 320, so that the liquid has better permeability during filtration.

[0058] In some embodiments, the enrichment filter membrane 320 is bonded or heat-welded to the membrane frame 310 .

[0059] In some embodiments, the connector 230 and the membrane frame 310 are detachably connected, such as by snap-fitting, interference-fitting, or threaded connection, to facilitate installation and disassembly of the enrichment membrane assembly 300 and reduce the difficulty of disassembly.

[0060] In other embodiments, the connector 230 and the membrane frame 310 may be integrally injection molded, that is, the connector 230 and the membrane frame 310 are integrally injection molded. When the enrichment membrane assembly 300 needs to be removed, the connector 230 and the membrane frame 310 can be broken by a tool. Of course, a breakable notch 301 may be provided between the membrane frame 310 and the connector 230 to facilitate the separation of the enrichment membrane assembly 300 from the connector 230 by a tool or vibration.

[0061] In this embodiment, the connector 230 and the membrane frame 310 are connected by welding, and a breakable notch 301 is formed at the connection between the membrane frame 310 and the connector 230 to facilitate breaking and removing the enrichment membrane assembly 300 .

[0062] Specifically, the membrane frame 310 has a vertical rod 312 connected to the connector 230. The vertical rod 312 and the connector 230 are connected by heat welding, and a notch 301 with stress concentration is formed at the connection. In this way, under a certain frequency of vibration, the notch 301 can be broken, so that the enrichment membrane assembly 300 and the connector 230 can be separated without the need for external tools to contact the enrichment membrane assembly 300, which is safe and hygienic, and reduces external interference in subsequent detection.

[0063] It should be noted that by connecting the enrichment membrane assembly 300 to the cup cover 200, the enrichment membrane assembly 300 can be taken out while removing the cup cover 200, and there is no need to use tools to reach into the liquefaction chamber 110 to take out the enrichment membrane assembly 300. This simplifies the installation and disassembly process of the enrichment membrane assembly 300, improves detection efficiency, avoids secondary contamination, and ensures subsequent detection accuracy.

[0064] Please also read Figure 5 , the length of the internal thread 220 on the cup cover 200 is greater than the moving stroke of the enrichment membrane assembly 300 covering the filter port 120. In this way, when the cup cover 200 is twisted, the cup cover 200 can rotate relative to the cup body 100 and move along the axis of rotation. According to the tightening force of the cup cover 200, the moving stroke of the enrichment membrane assembly 300 is controlled to ensure that the enrichment membrane assembly 300 covers the filter port 120. Of course, a stop interval line for twisting the cup cover 200 can be set on the outer circumference of the cup body 100 to avoid the problem of the cup cover 200 being over-tightened or under-tightened.

[0065] It can be understood that since the length of the internal thread 220 is greater than the moving stroke of the enrichment membrane assembly 300 to cover the filter port 120, sufficient margin can be reserved for the enrichment membrane assembly 300 to cover the filter port 120, so that after the enrichment membrane assembly 300 completes covering the filter port 120, the sealing around the filter port 120 is ensured to prevent liquid from passing through the gap, thereby improving the enrichment effect.

[0066] See also Figure 4 and Figure 5 In some embodiments, a boss body 210 is provided on the cup cover 200, and a liquid storage cavity 211 for storing liquid is provided in the boss body 210. The opening of the liquid storage cavity 211 faces the cup body 100 and is sealed by a seal 240. In this way, the sputum sample and the liquefied liquid can be preliminarily encapsulated in the liquid storage cavity 211, so that the sputum sample can be preliminarily liquefied in the cup cover 200. When installing the cup cover 200, the seal 240 is destroyed by the conductive structure so that the liquid in the liquid storage cavity 211 flows into the liquefaction cavity 110 for further liquefaction, thereby achieving the completion of liquid injection while installing the cup cover 200, reducing the time for liquid to contact with air, reducing the interference of external factors, and ensuring the accuracy of later detection.

[0067] Optionally, the sealing member 240 is a sealing film, wherein the sealing film is preferably an aluminum film or a tin film. Of course, other films that are easy to cut can also be used. It should be understood that the above is only an example and is not intended to limit the scope of protection of this application.

[0068] Optionally, the sealing member 240 seals the opening of the liquid storage chamber 211 by heat welding or bonding. In this way, it has the advantages of easy production, high efficiency and good sealing performance.

[0069] The conducting structure can be arranged on the inner wall of the liquefaction chamber 110, and the conducting structure is a convex tooth 130 with a blade portion. In this way, the rotation of the cup cover 200 itself can be used to make the sealing film contact with the puncture structure and generate relative movement, thereby piercing the sealing film, with a simple structure and high reliability.

[0070] See also Figure 1 , Figure 5 and Figure 6 The piston assembly 400 includes a piston rod 410 and a piston rubber head 420 disposed on the piston rod 410. The piston rubber head 420 is interference-fitted with the piston cavity 150. One end of the piston rod 410 away from the piston rubber head 420 extends outside the cup body 100, so as to apply a pulling force or a pushing force on the piston rod 410. It should be noted that the pulling force or the pushing force can be applied by an external device or manually.

[0071] In the initial state, the piston rod 410 is pushed to the minimum stroke, at which time the head of the piston rubber head 420 abuts against the top wall of the piston chamber 150, thereby forming an extrusion seal on the liquid outlet side of the filter port 120, so as to block the filter port 120 and prevent the liquid in the liquefaction chamber 110 from directly entering the piston chamber 150. During suction, the piston rod 410 is pulled to drive the rubber head to move away from the filter port 120, at which time a negative pressure is formed in the liquefaction chamber 110, and when all the liquid in the liquefaction chamber 110 is sucked into the piston chamber 150 through the enrichment filter membrane 320, the sputum is enriched.

[0072] In some embodiments, a gradually expanding section 151 is formed between the piston cavity 150 and the filter port 120, and the gradually expanding section 151 is in the shape of a cone. The piston rubber head 420 has a structure that matches the gradually expanding section 151, that is, the head of the piston rubber head 420 is in the shape of a cone. This can reduce the movement resistance of the piston rubber head 420 in the piston cavity 150, making it easier to install and push the piston rubber head 420; moreover, it ensures that in the initial state, the piston rubber head 420 has a better fit with the piston cavity 150, improving the sealing, thereby preventing the liquid in the liquefied cavity 110 from directly entering the piston cavity 150.

[0073] In some embodiments, a tapered section 111 for diversion is provided between the liquefaction chamber 110 and the filter port 120. The tapered section 111 is in a cone shape to achieve a transition from the diameter of the liquefaction chamber 110 to the diameter of the filter port 120, thereby guiding and converging the liquid to the filter port 120. Subsequently, suction is performed through the piston assembly 400, so that all the liquid can pass smoothly through the enrichment filter membrane 320 located at the filter port 120, thereby preventing residual liquid in the liquefaction chamber 110.

[0074] See also Figures 1 to 6 Furthermore, this embodiment also provides a cup cover structure for a sputum enrichment cup. The cup cover structure has been described in detail above and will not be repeated here.

[0075] The above describes in detail the optional implementation methods of the embodiments of the present application in combination with the accompanying drawings. However, the embodiments of the present application are not limited to the specific details in the above implementation methods. Within the technical concept of the embodiments of the present application, various simple modifications can be made to the technical scheme of the embodiments of the present application, and these simple modifications all belong to the protection scope of the embodiments of the present application.

[0076] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the embodiments of the present application will not further describe various possible combinations.

[0077] In addition, the various implementation methods of the embodiments of the present application may be arbitrarily combined, and as long as they do not violate the ideas of the embodiments of the present application, they should also be regarded as the contents disclosed in the embodiments of the present application.

Claims

1. A cup cover structure for a sputum enrichment cup, characterized in that: include: A cup cover (200), used for covering the cup body (100) of the sputum enrichment cup; and An enrichment membrane assembly (300) is removably disposed on one side of the cup cover (200) and extends in a direction away from the cup cover (200); Wherein, the enrichment membrane assembly (300) is used to extend into the cup body (100) when the cup cover (200) is placed on the cup body (100).

2. The cup cover structure for the sputum enrichment cup according to claim 1, characterized in that: A connector (230) is provided on one side of the cup cover (200) close to the cup body (100), and the enrichment membrane assembly (300) is removably disposed on the connector (230).

3. The cup cover structure for the sputum enrichment cup according to claim 2, characterized in that: The enrichment membrane assembly (300) is detachably connected to the connector (230).

4. The cup cover structure for the sputum enrichment cup according to claim 2, characterized in that: A breakable notch (301) is provided between the enrichment membrane assembly (300) and the connector (230).

5. The cup cover structure for the sputum enrichment cup according to claim 4, characterized in that: The enrichment membrane assembly (300) comprises a membrane frame (310), and the membrane frame (310) and the connector (230) are an integral structure.

6. The cup cover structure for the sputum enrichment cup according to claim 1, characterized in that: The enrichment membrane assembly (300) comprises a membrane frame (310) and an enrichment filter membrane (320) covering the membrane frame (310), and one end of the membrane frame (310) away from the enrichment filter membrane (320) is connected to the cup cover (200).

7. The cup cover structure for the sputum enrichment cup according to claim 6, characterized in that: The membrane frame (310) is provided with a plurality of hollow hole areas (311), and the enrichment filter membrane (320) covers all of the hollow hole areas (311).

8. The cup cover structure for a sputum enrichment cup according to any one of claims 1 to 7, characterized in that: The cup cover (200) is provided with a boss body (210), and a liquid storage cavity (211) for sealing liquid is provided inside the boss body (210).

9. The cup cover structure for the sputum enrichment cup according to claim 8, characterized in that: The opening of the liquid storage cavity (211) faces the filter port (120) in the cup body (100) and is provided with a sealing member (240); Wherein, a conducting structure for puncturing or scratching the sealing member (240) is provided in the cup body (100).

10. A sputum enrichment cup, characterized in that: The invention comprises a cup cover structure for a sputum enrichment cup according to any one of claims 1-9.

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