Saliva sampling and detecting device
By introducing a locking component into the saliva sampling and testing device, the problem of easy detachment of threaded connections was solved, thereby improving the stability and sealing of the device and ensuring reliable sample drainage and testing results.
Patent Information
- Application Number
- CN202520602156.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-05-05
- Estimated Expiration
- 2035-04-01
AI Technical Summary
The existing saliva sampling and testing devices have separate parts connected by threads, which are prone to rotation and detachment, affecting the stability and sealing of the device.
A locking part, including a limiting member and a fastener, is provided between the detection head and the drainage component. The limiting member and the fastener cooperate to prevent the detection head from falling off the drainage component. An elastic fastener is used to allow bidirectional rotation and ensure the stability of the connection.
This effectively prevents the detection head from detaching from the drainage components, improves the stability and sealing of the device, and reduces the risk of sample leakage.
Smart Images
Figure CN224193507U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of saliva testing, and more particularly to a saliva sampling and testing device. Background Technology
[0002] A saliva sampling and testing device is a medical device used to collect and analyze saliva. In recent years, it has been widely used in medical diagnosis, health monitoring, and scientific research. Saliva contains abundant biomarkers, such as DNA, RNA, proteins, and metabolites, which can reflect a variety of physiological and pathological states.
[0003] Currently, most saliva sampling and testing devices adopt a split-type structure design. This design makes the device more convenient to operate, but it also has certain technical problems. Specifically, the split parts of this device are installed via threaded connections. Although threaded installation facilitates assembly, in actual use, the threaded connections are prone to rotational detachment, affecting the stability of the device. Utility Model Content
[0004] This application provides a saliva sampling and detection device to at least solve the above-mentioned technical problems existing in the prior art.
[0005] To achieve the above objectives, this application provides the following technical solution: a saliva sampling and detection device, including a detection head for detecting samples;
[0006] A drainage component is threadedly connected to a detection head, wherein one of the detection head or the drainage component is fitted with a threaded head, and the other is provided with a threaded hole;
[0007] A locking part, located between the detection head and the drainage component, is used to prevent the detection head and the drainage component from falling off.
[0008] The locking part includes a limiting member and a fastener. The limiting member is installed on one of the detection head or the drainage component, and the fastener is installed on the other.
[0009] The fastener includes an intercepting surface. When the detection head rotates relative to the drainage component in a first direction, the limiting member passes over the fastener to allow the detection head to continue rotating. When the detection head rotates relative to the drainage component in a second direction, the limiting member abuts against the intercepting surface of the fastener to restrict the rotation of the detection head.
[0010] The liquid storage component has a drainage component located between it and the detection head. The drainage component has a drainage channel inside, which is used to drain the liquid in the liquid storage component into the detection head.
[0011] In one embodiment, when the detection head and the drainage component are in contact with their opposite end faces, the limiting member abuts against the interception surface.
[0012] In one embodiment, the fastener is an elastic element, and the fastener also includes a guide surface. When the limiting element contacts the guide surface, the detection head rotates bidirectionally relative to the drainage component.
[0013] In one embodiment, the limiting member is a sheet-like protruding rib.
[0014] In one embodiment, the liquid storage component has an insertion hole for inserting the drainage component, and the peripheral side of the drainage component is provided with a sealing ring adapted to the insertion hole. When the drainage component drains the sample, the sealing ring is located inside the insertion hole.
[0015] In one embodiment, the drainage component includes a liquid guiding section and a sampling section, the liquid guiding section is connected to the detection head, the sampling section is connected to the liquid storage component, and the drainage channel is formed inside the liquid guiding section.
[0016] In one embodiment, the sampling unit includes an assembly rod for insertion into a socket, a collection cotton is provided on the peripheral side of the assembly rod, and the assembly rod is connected to the liquid guiding part by a connector.
[0017] In one embodiment, the detection head includes a shell and a reagent strip, the shell having a through hole communicating with a drainage channel, and the shell having an observation area.
[0018] In one embodiment, a cover is provided on the side of the drainage component away from the detection head, and the cover is detachably connected to the drainage component.
[0019] Compared with existing technologies, the saliva sampling and detection device of this application has the following advantages:
[0020] During the assembly and installation of the detection head and the drainage component, the detection head rotates clockwise relative to the drainage component and the connection is gradually tightened. The limiting component rotates with the detection head relative to the drainage component. At this time, the limiting component and the intercepting surface of the fastener do not contact each other. However, if the detection head rotates counterclockwise relative to the drainage component, when the detection head and the limiting component rotate at most 360 degrees relative to the drainage component, the limiting component will contact the intercepting surface. The intercepting surface will prevent the limiting component from rotating relative to the drainage component, thereby limiting the separation of the detection head and the drainage component.
[0021] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description
[0022] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of this application are illustrated in the drawings by way of example and not limitation, in which:
[0023] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
[0024] Figure 1 This is a schematic diagram of the overall structure of this application;
[0025] Figure 2 This is a schematic diagram showing the overall structure of this application;
[0026] Figure 3 This is a schematic diagram of the detection head structure of this application;
[0027] Figure 4 This is a schematic diagram illustrating the first change in the overall structure of this application;
[0028] Figure 5 This is a schematic diagram of the second change in the overall structure of this application;
[0029] Figure 6 This is a schematic diagram of the drainage component structure in this application.
[0030] In the picture:
[0031] 100. Detection head; 110. Outer shell; 120. Reagent strip; 130. Through hole; 140. Observation area; 150. Widened groove; 160. Retaining rib;
[0032] 200. Drainage component; 210. Drainage channel; 230. Liquid guiding section; 240. Sampling section; 241. Assembly rod; 242. Collection cotton; 243. Connecting component;
[0033] 300. Locking component; 310. Limiting component; 320. Fastener; 321. Intercepting surface; 322. Guiding surface;
[0034] 400. Liquid storage component; 410. Insertion port; 420. Aluminum foil sheet;
[0035] 500, cover;
[0036] 600. Sealing ring;
[0037] 700, threaded head;
[0038] 800, threaded hole. Detailed Implementation
[0039] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0040] Saliva sampling and testing devices, as the name suggests, are devices or tools used to collect and extract human saliva, and are commonly used in fields such as medical diagnosis and biological detection.
[0041] In recent years, with the development of medical testing technology, the demand for saliva sample testing has been increasing, such as for virus testing and gene testing. Previously, various devices for saliva collection and sampling were simple and direct, lacking the adsorption and concentrated detection of the biological components to be tested, and also lacking protective properties against these components; sampling operations also had to be performed by trained professionals. However, existing saliva sampling devices have greatly solved these problems.
[0042] However, most current saliva sampling and testing devices adopt a split-type structure design. While this design makes the device more convenient to operate, it also presents certain technical problems. Specifically, the split parts of this device are installed via threaded connections. Although threaded installation facilitates assembly, in actual use, the threaded connections are prone to rotational detachment, affecting the stability of the device.
[0043] Please see Figure 1 and Figure 2 Therefore, this embodiment provides a saliva sampling and detection device, including a detection head 100 for detecting samples;
[0044] The detection head 100 is equipped with a reagent strip 120. When the sample to be tested enters the detection head 100, it will be absorbed by the reagent strip 120 and react with the chemical substances on the reagent strip 120 to perform color development. The detection head 100 is equipped with an observation area 140, which allows the operator to observe the color development on the reagent strip 120.
[0045] Please see Figure 1 and Figure 3 The observation area 140 on the detection head 100 is designed as a panel type. The observation area 140 is relatively large and can observe multiple reagent strips 120 at the same time.
[0046] Please see 2 and Figure 3It also includes a drainage component 200, which is threadedly connected to the detection head 100. The detection head 100 is equipped with a threaded head 700 and has a threaded hole 800. The drainage component 200 and the detection head 100 are threadedly connected. Before use, it can be used as a separate unit for easy storage and to reduce the length of the storage space. When in use, the drainage component 200 is threadedly connected to the detection head 100, and the sample is drained into the detection head 100 through the drainage component 200 to react and develop color with the reagent strip 120.
[0047] Because the drainage component 200 and the detection head 100 are connected by threads, during use, the threaded connection between the drainage component 200 and the detection head 100 may become loose, resulting in insufficient fit between them. This can lead to the drainage component 200 and the detection head 100 falling off, or leakage during sample delivery due to the loose threaded connection.
[0048] Please see Figure 2 and Figure 3 Therefore, a locking part 300 is provided between the detection head 100 and the drainage component 200 to prevent the detection head 100 from falling off the drainage component 200.
[0049] The locking part 300 includes a limiting member 310 and a fastener 320. The limiting member 310 is installed on the detection head 100, and the fastener 320 is installed on the drainage part 200.
[0050] The fastener 320 includes an intercepting surface 321. When the detection head 100 rotates relative to the drainage component 200 in a first direction, that is, the direction in which the detection head 100 is tightened relative to the drainage component 200, the limiting member 310 passes over the fastener 320 so that the detection head 100 can continue to rotate, that is, it can rotate in the tightening direction. When the detection head 100 rotates relative to the drainage component 200 in a second direction, that is, the direction in which the detection head 100 is loosened relative to the drainage component 200, the limiting member 310 abuts against the intercepting surface 321 of the fastener 320. At this time, the intercepting surface 321 blocks the limiting member 310. Since the limiting member is fixedly installed on the detection head 100, it also restricts the rotation of the detection head 100.
[0051] It should be noted that when the detection head 100 and the drainage component 200 are in contact with each other, that is, when the detection head 100 and the drainage component 200 are tightened to the limit position and cannot be tightened any further, the limiting component 310 just follows the rotation of the detection head 100 past the fastener 320 and abuts against the intercepting surface 321 on the fastener 320. In this state, the detection head 100 cannot rotate in the first direction or in the second direction.
[0052] The limiting member 310 can be a sheet-like protruding rib or a cylindrical block, etc. Specifically, when the detection head 100 rotates clockwise relative to the drainage component 200 and gradually tightens the connection, the limiting member 310 rotates with the detection head relative to the drainage component 200. At this time, the limiting member 310 does not contact the intercepting surface 321 of the fastener 320. However, if the detection head 100 rotates counterclockwise relative to the drainage component 200, when the detection head 100 and the limiting member 310 rotate relative to the drainage component 200 by up to 360 degrees, the limiting member 310 will contact the intercepting surface 321. The intercepting surface 321 prevents the limiting member 310 from rotating relative to the drainage component 200, thereby limiting the separation of the detection head 100 from the drainage component 200.
[0053] The fastener 320 is an elastic element and also includes a guide surface 322. When the limiting element 310 contacts the guide surface 322, the detection head 100 rotates bidirectionally relative to the drainage component 200.
[0054] When the detection head 100 and the limiting member 310 rotate clockwise relative to the drainage member 200, the limiting member 310 will contact the guide surface 322 every 360 degrees. Because the fastener 320 is elastic, it will compress the guide surface 322 and deform it, and then pass over the guide surface 322 to continue to complete the clockwise rotation of the detection head 100 relative to the drainage member 200. When the limiting member 310 contacts the guide surface 322, the limiting member 310 can rotate clockwise or counterclockwise relative to the drainage member 200.
[0055] Please see Figure 2 and Figure 4 The liquid storage component 400 and the drainage component 200 are located between the liquid storage component 400 and the detection head 100. The drainage component 200 has a drainage channel 210, which is used to drain the liquid in the liquid storage component 400 to the detection head 100.
[0056] Depend on Figure 4 and Figure 5 It is known that the liquid storage component 400 has an insertion hole 410 for the insertion of the drainage component 200. The bottom of the insertion hole 410 is a buffer solution. In the initial stage, the buffer solution at the bottom of the insertion hole 410 is sealed by the aluminum foil 420. The peripheral side of the drainage component 200 is provided with a sealing ring 600 that matches the insertion hole 410. When the drainage component 200 drains the sample, the sealing ring 600 is located inside the insertion hole 410. The sealing ring 600 on the drainage component 200 fills the gap between the drainage component 200 and the insertion hole 410, reducing the leakage of buffer solution from the gap between the drainage component 200 and the insertion hole 410. At the same time, after the drainage component 200 is inserted, the guide component will break the aluminum foil 420, extend into the buffer solution, and drain the liquid to be tested into the detection head 100 to react with the reagent strip 120.
[0057] The drainage component 200 includes a liquid guiding section 230 and a sampling section 240. The liquid guiding section 230 is connected to the detection head 100, and the sampling section 240 is connected to the liquid storage component 400. The drainage channel 210 is formed within the liquid guiding section 230. When the drainage component 200 is inserted into the insertion hole 410 of the liquid storage component 400, the sampling section 240 penetrates the aluminum foil 420 and extends into the buffer solution.
[0058] Please see Figure 2 and Figure 6 The sampling unit 240 includes an assembly rod 241 for insertion into the insertion hole 410. A collection cotton 242 is provided on the peripheral side of the assembly rod 241. A connector 243 is provided between the assembly rod 241 and the liquid guiding part 230. The connector 243 is mainly used to connect the assembly rod 241 and the liquid guiding part 230. It can be a threaded connection, a snap-fit connection, or an interference fit using a Morse taper.
[0059] After the sampling unit 240 is inserted into the liquid storage component 400, breaks the aluminum foil 420, and extends into the buffer solution, the assembly rod 241 and the collection cotton 242 on it will squeeze the space of the buffer solution in the liquid storage component 400, thereby squeezing the liquid to be tested into the drainage channel 210, and then draining it into the detection head 100, where it will be absorbed by the reagent strip 120 inside the detection head 100.
[0060] Please see Figure 3 The detection head 100 also includes a housing 110, and a through hole 130 communicating with the drainage channel 210 is provided in the housing 110. The liquid to be tested delivered from the first channel 211 and the second channel 212 will be delivered to the inside of the detection head 100 through the through hole 130.
[0061] The outer casing 110 has a widened groove 150 located at the through hole 130. Part of the test strip is located in the widened groove 150. A baffle 160 is provided in the widened groove 150. When the test liquid enters the widened groove 150 of the outer casing 110 through the through hole 130, it is first blocked by the baffle 160 to prevent the test liquid from splashing and causing contamination of the NC membrane. Then the blocked test liquid is collected in the widened groove 150 and waits for the test strip to be stably and fully absorbed.
[0062] A cover 500 is provided on the side of the drainage component 200 away from the detection head 100, and the cover 500 is detachably connected to the drainage component 200. When not in use, the cover protects the end of the drainage component 200 and reduces contamination.
[0063] The method for testing samples according to this invention will now be described.
[0064] S1. First, remove the cover 500 on the side of the drainage component 200 away from the detection head 100 to expose the assembly rod 241 and the collection cotton 242 on the guide component.
[0065] S2. Insert the assembly rod 241 and the collection cotton 242 on the drainage component 200 into the liquid storage component 400 and press it down to the bottom, so that the assembly rod 241 pierces the aluminum foil 420. The assembly rod 241 and the collection cotton 242 on it squeeze the space of the buffer solution. At this time, the assembly rod 241 and the collection cotton 242 on it fill the space where the buffer solution is located.
[0066] S3. The squeezed liquid to be tested enters the detection head 100 through the drainage channel 210 in the drainage component 200;
[0067] S4. The reagent strip 120 inside the detection head 100 fully absorbs the test liquid entering the detection head 100 and runs it on the plate.
[0068] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this application can be achieved, and this is not limited herein.
[0069] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this application can be achieved, and this is not limited herein.
[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0071] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A saliva sampling and detection device, characterized in that, include The detection head (100) is used to detect samples; The drainage component (200) is threadedly connected to the detection head (100). One of the detection head (100) or the drainage component (200) is equipped with a threaded head (700), and the other is provided with a threaded hole (800). A locking part (300) is disposed between the detection head (100) and the drainage component (200) to prevent the detection head (100) and the drainage component (200) from falling off. The locking part (300) includes a limiting member (310) and a fastener (320). The limiting member (310) is installed on one of the detection head (100) or the drainage part (200), and the fastener (320) is installed on the other. When the detection head (100) rotates relative to the drainage component (200) in a first direction, the limiting member (310) passes over the fastener (320) to allow the detection head (100) to continue rotating. When the detection head (100) rotates relative to the drainage component (200) in a second direction, the limiting member (310) abuts against the intercepting surface (321) of the fastener (320) to restrict the rotation of the detection head (100). Liquid storage component (400), the drainage component (200) is located between the liquid storage component (400) and the detection head (100), the drainage component (200) has a drainage channel (210) inside, the drainage channel (210) is used to drain the liquid in the liquid storage component (400) into the detection head (100).
2. The saliva sampling and detection device according to claim 1, characterized in that, When the detection head (100) and the drainage component (200) come into contact with each other at their opposite ends, the limiting member abuts against the intercepting surface (321).
3. The saliva sampling and detection device according to claim 1, characterized in that, The fastener (320) is an elastic element, and the fastener (320) also includes a guide surface (322). When the limiting element (310) contacts the guide surface (322), the detection head (100) rotates bidirectionally relative to the drainage component (200).
4. The saliva sampling and detection device according to claim 1, characterized in that, The limiting member (310) is a sheet-like protruding rib.
5. The saliva sampling and detection device according to claim 1, characterized in that, The liquid storage component (400) has an insertion hole (410) for the insertion of the drainage component (200). The drainage component (200) has a sealing ring (600) on its peripheral side that is compatible with the insertion hole (410). When the drainage component (200) drains the sample, the sealing ring (600) is located inside the insertion hole (410).
6. The saliva sampling and detection device according to claim 1, characterized in that, The drainage component (200) includes a liquid guiding part (230) and a sampling part (240). The liquid guiding part (230) is connected to the detection head (100), the sampling part (240) is connected to the liquid storage component (400), and the drainage channel (210) is opened in the liquid guiding part (230).
7. The saliva sampling and detection device according to claim 6, characterized in that, The sampling unit (240) includes an assembly rod (241) for inserting into the insertion hole (410), and a collection cotton (242) is provided on the peripheral side of the assembly rod (241). The assembly rod (241) is connected to the liquid guiding part (230) by a connector (243).
8. The saliva sampling and detection device according to claim 1, characterized in that, The detection head (100) includes a shell (110) and a reagent strip (120). The shell (110) has a through hole (130) communicating with the drainage channel (210), and the shell (110) has an observation area (140).
9. The saliva sampling and detection device according to claim 1, characterized in that, A cover (500) is provided on the side of the drainage component (200) away from the detection head (100), and the cover (500) is detachably connected to the drainage component (200).