Sample adding and smearing device for syphilis non-specific antibody detection test
By designing a smearing device for the pipette and sample application tube, uniform smearing of samples in the syphilis non-specific antibody detection test was achieved, solving the problems of uneven smearing and evaporation drying when the sample volume is large, and improving the accuracy of the test results.
Patent Information
- Application Number
- CN202520141923.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-21
AI Technical Summary
The existing sample application devices for syphilis non-specific antibody detection tests are not convenient for simultaneously applying and completely spreading samples on different reaction cards. When the sample volume is large, there is a long time difference between the early and late sample application, which results in the later samples not being applied completely, and the applied samples evaporating and drying, affecting the accuracy of the test results.
A sample application and smearing device including a suction cylinder and a sample application tube was designed. A fixing block and a piston are slidably installed inside the suction cylinder. The smearing plates are connected by gear and rack transmission, so that four sets of smearing plates can rotate clockwise to the horizontal at the same time. The smearing plates can be automatically fixed to ensure uniform sample application.
This improves the efficiency of the device, avoids the time difference between the initial and later sample additions when the sample volume is large, prevents the sample from evaporating and drying out, and ensures the accuracy of the test results.
Smart Images
Figure CN223841914U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, and more specifically, it relates to a sample application device for a non-specific antibody detection test for syphilis. Background Technology
[0002] Syphilis is a chronic, systemic infectious disease caused by Treponema pallidum, primarily transmitted through sexual contact, mother-to-child transmission, and blood. The disease presents with complex clinical manifestations and a long course, affecting various systems and organs throughout the body as it progresses. Therefore, timely diagnosis of syphilis is crucial for treatment and controlling the source of infection. Commonly used clinical methods for syphilis detection include syphilis-specific antibody testing and non-specific antibody testing. A positive result for non-specific antibodies indicates that the patient is in the active stage of syphilis and is an important diagnostic tool for screening and monitoring treatment efficacy.
[0003] Existing sample application devices for similar syphilis non-specific antibody detection tests are inconvenient to simultaneously apply and completely spread samples on different reaction cards. When the sample volume is large, there is a time difference between the application of early and late samples, which may result in the later samples not being applied completely while the applied samples have evaporated and dried, ultimately leading to false positives and affecting the accuracy of the test results. Utility Model Content
[0004] To address the aforementioned technical problems, this invention provides a sample application and smearing device for syphilis non-specific antibody detection, which solves the problems of existing similar devices being inconvenient to simultaneously apply and completely spread samples on different reaction cards, and when the sample volume is large, there is a long time difference between the application of early and later samples, which may result in the later samples not being completely applied and the applied samples evaporating and drying, ultimately leading to false positives in the test results and affecting the accuracy of the test results.
[0005] The sample application device for the non-specific antibody detection test for syphilis of this utility model is achieved by the following specific technical means:
[0006] A sample application device for a non-specific antibody detection test for syphilis, comprising a pipette and a sample application tube;
[0007] The suction cylinder has a sliding mounting block on its exterior. A set of pistons is slidably mounted inside the suction cylinder, with a stopper rod fixed to the top of the pistons. A connecting tube is fitted to the bottom of the suction cylinder. A set of matching docking grooves is opened at the top of the sample dispensing tube, and the connecting tube at the bottom of the suction cylinder is inserted into the docking groove at the top of the sample dispensing tube. Four sets of branch tubes are fixedly connected to the sample dispensing tube. Each branch tube is fitted with a rotatable L-shaped smearing plate at its outer end. The smearing plate is L-shaped. A limit block is also fixedly installed at the outer end of the branch tube. A movable frame is also slidably mounted on the sample dispensing tube. The bottom of the movable frame is engaged and driven with the smearing plate. A set of limit grooves is opened at the top of the movable frame, and the fixing block at the outer end of the suction cylinder is inserted into the limit groove at the top of the movable frame.
[0008] In at least some embodiments, a set of gears is fixedly installed on the outer end of the coating plate, and four sets of racks are fixedly installed on the bottom of the movable frame, with the racks at the bottom of the movable frame meshing and driving with the gears on the outer end of the coating plate respectively.
[0009] In at least some embodiments, a set of fixing rods is fixedly installed at the outer end of the suction cylinder, and a set of connecting plates is fixedly installed on the top of the fixing block. The connecting plates are provided with guide sliding holes, and the guide sliding holes of the connecting plates on the top of the fixing block are slidably engaged with the fixing rods at the outer end of the suction cylinder.
[0010] In at least some embodiments, a set of second elastic members is respectively fitted on the two support rods at the rear end of the mobile frame, and the top of the second elastic members is in contact with the bottom surface of the support plate on the sample tube.
[0011] In at least some embodiments, a set of first elastic elements is sleeved on the fixing rod at the outer end of the suction cylinder, and the outer end of the first elastic element is in contact with the inner end face of the connecting plate on the fixing block.
[0012] In at least some embodiments, a set of limiting grooves is provided at the outer end of the branch pipe, and a set of limiting shafts is fixedly installed at the inner end of the coating plate, and the limiting shafts at the inner end of the coating plate are rotatably installed on the limiting grooves at the outer end of the branch pipe.
[0013] In at least some embodiments, a support plate is fixedly mounted on the rear end of the sample dispensing tube, and a guide sliding hole is provided on the support plate. Two sets of support rods are fixedly installed on the rear end of the movable frame, and the two support rods are respectively slidably engaged with the guide sliding hole on the support plate at the rear end of the sample dispensing tube.
[0014] Compared with the prior art, the sample application device for the syphilis non-specific antibody detection test of this utility model has the following beneficial effects:
[0015] 1. The design of the smear plate facilitates the connection of the pipette bottom to the docking groove at the top of the sample tube, allowing for easy and quick disassembly and replacement of the sample tube. Two support rods slide onto the guide holes of the support plate at the rear end of the sample tube. Under the action of the second elastic element on the support rods, the moving frame is positioned at the bottom, and the smear plate is vertical. The four sets of branch tubes are placed in the diluted serum. Pulling the stopper rod draws up the sample solution and adds it to the reaction card. Pulling the moving frame upwards rotates the limiting shaft at the inner end of the smear plate, which is then mounted on the limiting shaft at the outer end of the branch tube. The rotating slot and the rack at the bottom of the moving frame are connected to the gears at the outer end of the smearing plate, so that the four smearing plates can rotate clockwise to the horizontal at the same time. This allows the device to easily smear and spread the samples on different reaction cards at the same time, which effectively improves the efficiency of the device and avoids the problem that when the sample volume is large, there is a long time difference between the early and late sample addition, which may result in the later sample not being smeared and the smeared sample evaporating and drying, ultimately leading to false positives in the test results and affecting the accuracy of the test results.
[0016] 2. The setting of the fixing block facilitates the sliding engagement of the fixing block with the fixing rod at the outer end of the suction cylinder through the guide sliding hole of the connecting plate at the top of the fixing block. When the moving frame is pulled up, the fixing block is an inclined structure and moves inward. After the moving frame moves to the predetermined position, under the action of the first elastic element on the fixing rod, the fixing block at the outer end of the suction cylinder is inserted and installed in the limiting groove at the top of the moving frame. This makes it easy to automatically fix the coating plate when it is placed in a horizontal position, further improving the use effect of the device. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the front side axis of this utility model.
[0018] Figure 2 This is a schematic diagram of the rear side shaft of this utility model.
[0019] Figure 3 This is a schematic diagram of the application process of this utility model.
[0020] Figure 4 This is a schematic diagram of the disassembly and assembly of the coating plate of this utility model.
[0021] Figure 5 This is an installation diagram of the mobile frame of this utility model.
[0022] Figure 6 This is a schematic diagram of the installation of the limiting block of this utility model.
[0023] Figure 7 This is a split diagram of the present invention.
[0024] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0025] 1. Suction tube; 101. Fixing block; 1011. Connecting plate; 102. Fixing rod; 1021. First elastic element; 103. Piston; 1031. Plug rod; 104. Connecting tube; 2. Sample dispensing tube; 201. Branch tube; 2011. Limiting groove; 2012. Limiting block; 202. Connecting groove; 203. Support plate; 3. Spreading plate; 301. Limiting shaft; 302. Gear; 4. Moving frame; 401. Limiting groove; 402. Rack; 403. Support rod; 4031. Second elastic element. Detailed Implementation
[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0027] As attached Figure 1 To be continued Figure 7 As shown:
[0028] Example 1: This utility model provides a sample application device for a syphilis non-specific antibody detection test, including a pipette 1 and a sample application tube 2;
[0029] A set of fixing blocks 101 are slidably installed on the outer end of the suction cylinder 1. A set of pistons 103 are slidably installed inside the suction cylinder 1. A stopper rod 1031 is fixed on the top of the piston 103. A connecting pipe 104 is fixedly connected to the bottom of the suction cylinder 1. A set of docking grooves 202 are opened on the top of the sample dispensing tube 2. The connecting pipe 104 at the bottom of the suction cylinder 1 is inserted into the docking grooves 202 at the top of the sample dispensing tube 2. Four sets of branch pipes 201 are fixedly connected to the sample dispensing tube 2. A set of smearing plates 3 are rotatably installed on the outer end of each branch pipe 201. The smearing plates 3 have an L-shaped structure. A limiting block 2012 is also fixedly installed on the outer end of each branch pipe 201. A movable frame 4 is also slidably installed on the sample dispensing tube 2. The bottom of the movable frame 4 is meshed and connected to the smearing plates 3. A set of limiting grooves 401 are opened on the top of the movable frame 4. The fixing block 101 at the outer end of the suction cylinder 1 is inserted into the limiting grooves 401 at the top of the movable frame 4.
[0030] like Figures 2 to 7As shown, a set of support plates 203 are fixedly installed at the rear end of the sample dispensing tube 2. Sliding holes are provided on the support plates 203. Two sets of support rods 403 are fixedly installed at the rear end of the movable frame 4, and the two sets of support rods 403 at the rear end of the movable frame 4 are slidably installed on the sliding holes of the support plates 203 at the rear end of the sample dispensing tube 2. A set of second elastic elements 4031 are sleeved on each of the two sets of support rods 403 at the rear end of the movable frame 4. The top of the second elastic element 4031 contacts the bottom surface of the support plate 203 on the sample dispensing tube 2. A set of limiting grooves 2011 is provided at the outer end of the support tube 201. A set of limiting shafts 301 are fixedly installed at the inner end of the smearing plate 3, and the limiting shafts 301 at the inner end of the smearing plate 3 are rotatably mounted on the limiting groove 2011 at the outer end of the branch pipe 201. A set of gears 302 are also fixedly installed at the outer end of the smearing plate 3. Four sets of racks 402 are fixedly installed at the bottom of the moving frame 4, and the racks 402 at the bottom of the moving frame 4 are respectively meshed with the gears 302 at the outer end of the smearing plate 3 for transmission connection. Specifically, the connecting pipe 104 at the bottom of the suction tube 1 is inserted into the connecting groove 202 at the top of the sample tube 2, so that the sample tube 2 can be easily connected. For quick disassembly and replacement, the two sets of support rods 403 at the rear end of the moving frame 4 are slidably installed on the sliding holes of the support plate 203 at the rear end of the sample tube 2. Under the action of the second elastic element 4031 on the support rod 403, the moving frame 4 is placed at the bottom, and the smear plate 3 is in a vertical state. The four sets of branch tubes 201 are placed in the diluted serum. Pull the stopper rod 1031 to draw up the sample solution and add it to the reaction card. Pull the moving frame 4 upward, and the limiting rotating shaft 301 at the inner end of the smear plate 3 is rotated and installed on the limiting rotating groove 2011 at the outer end of the branch tube 201. The rack 402 at the bottom of the frame 4 meshes with the gear 302 at the outer end of the smear plate 3, so that the four sets of smear plates 3 can rotate clockwise to the horizontal at the same time. This allows the device to easily smear and spread the samples on different reaction cards at the same time, which effectively improves the efficiency of the device and avoids the problem that when the sample volume is large, there is a long time difference between the early and late sample addition, which may result in the later sample not being smeared completely and the smeared sample evaporating and drying, ultimately leading to false positives in the test results and affecting the accuracy of the test results.
[0031] Example 2: Based on Example 1, as follows Figure 6As shown, a set of fixing rods 102 are fixedly installed on the outer end of the suction cylinder 1, and a set of connecting plates 1011 are fixedly installed on the top of the fixing block 101. The connecting plates 1011 have sliding holes, and the sliding holes of the connecting plates 1011 on the top of the fixing block 101 are slidably installed on the fixing rods 102 at the outer end of the suction cylinder 1. A set of first elastic members 1021 are sleeved on the fixing rods 102 at the outer end of the suction cylinder 1, and the outer end of the first elastic member 1021 contacts the inner end face of the connecting plate 1011 on the fixing block 101. Specifically, the fixing block... The sliding hole of the top connecting plate 1011 is slidably installed on the fixing rod 102 at the outer end of the suction cylinder 1. When the moving frame 4 is pulled up, the fixing block 101 is an inclined structure. The fixing block 101 moves inward. After the moving frame 4 moves up to the predetermined position, under the action of the first elastic element 1021 on the fixing rod 102, the fixing block 101 at the outer end of the suction cylinder 1 is inserted and installed on the limiting groove 401 at the top of the moving frame 4. This makes it easy to automatically fix the coating plate 3 when it is placed in a horizontal position, and further improves the use effect of the device.
[0032] The specific usage and function of this embodiment are as follows:
[0033] In use, the connecting tube 104 at the bottom of the pipette 1 is inserted into the connecting groove 202 at the top of the sample tube 2, allowing for easy and quick disassembly and replacement of the sample tube 2. Under the action of the second elastic element 4031 on the support rod 403, the moving frame 4 is positioned at the bottom, and the smear plate 3 is in a vertical state. The four sets of supporting tubes 201 are placed in the diluted serum, and the stopper rod 1031 is pulled to draw up the sample solution and add it to the reaction card. The moving frame 4 is pulled upward, and the rack 402 at the bottom of the moving frame 4 meshes with the gear 302 at the outer end of the smear plate 3, so that the four sets of smear plates 3 rotate clockwise to a horizontal position simultaneously. This allows the device to easily and completely spread the samples on different reaction cards at the same time, effectively improving the efficiency of the device and avoiding the need for large sample volumes. When the sample is applied, there is a long time difference between the initial and subsequent sample application, which may result in the subsequent sample not being fully applied and the applied sample evaporating and drying, ultimately leading to false positives and affecting the accuracy of the test results. The sliding hole of the top connecting plate 1011 of the fixing block 101 is slidably installed on the fixing rod 102 at the outer end of the suction cylinder 1. When the moving frame 4 is pulled up, the fixing block 101 is an inclined structure and moves inward. After the moving frame 4 moves to the predetermined position, under the action of the first elastic element 1021 on the fixing rod 102, the fixing block 101 at the outer end of the suction cylinder 1 is inserted and installed on the limiting groove 401 at the top of the moving frame 4, which facilitates the automatic fixing of the application plate 3 when it is placed in a horizontal position, further improving the use effect of the device.
[0034] The following points should be noted in this article:
[0035] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.
[0036] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0037] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure 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 disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.
Claims
1. A sample application device for a syphilis non-specific antibody detection test, characterized in that: The system includes a pipette (1) and a sample dispensing tube (2). The pipette (1) has a slidingly mounted fixing block (101) on its exterior. Inside the pipette (1) is a slidingly mounted piston (103). A stopper rod (1031) is fixedly connected to the top of the piston (103). A connecting tube (104) is mounted at the bottom of the pipette (1). The top of the sample dispensing tube (2) has a set of matching mating grooves (202), which are inserted into the connecting tube (104) at the bottom of the pipette (1). The sample dispensing tube (2) has... Four sets of branch pipes (201) are fixedly connected. Each branch pipe (201) is equipped with a rotatable L-shaped coating plate (3) at its outer end. A limiting block (2012) is also fixedly installed at the outer end of the branch pipe (201). A movable frame (4) is also slidably installed on the sample tube (2). The bottom of the movable frame (4) is engaged with each coating plate (3). A set of limiting grooves (401) is opened on the top of the movable frame (4). The fixing block (101) at the outer end of the suction tube (1) is inserted and installed on the limiting groove (401) on the top of the movable frame (4).
2. The sample application device for a syphilis non-specific antibody detection test according to claim 1, characterized in that: The rear end of the sample tube (2) is fixedly equipped with a support plate (203), and a guide sliding hole is provided on the support plate (203). The rear end of the moving frame (4) is fixedly installed with two support rods (403), and the two support rods (403) are respectively slidably engaged with the guide sliding hole of the support plate (203) at the rear end of the sample tube (2).
3. The sample application device for a syphilis non-specific antibody detection test according to claim 1, characterized in that: A set of second elastic elements (4031) is respectively fitted on the two support rods (403) at the rear end of the mobile frame (4). The top of the second elastic element (4031) is in contact with the bottom surface of the support plate (203) on the sample tube (2).
4. The sample application device for a syphilis non-specific antibody detection test according to claim 1, characterized in that: The outer end of the branch pipe (201) is provided with a set of limiting rotating grooves (2011), and the inner end of the coating plate (3) is fixedly installed with a set of limiting rotating shafts (301), and the limiting rotating shafts (301) at the inner end of the coating plate (3) are rotatably installed on the limiting rotating grooves (2011) at the outer end of the branch pipe (201).
5. The sample application device for a syphilis non-specific antibody detection test according to claim 1, characterized in that: A set of gears (302) is fixedly installed on the outer end of the coating plate (3), and four sets of racks (402) are fixedly installed on the bottom of the moving frame (4), and the racks (402) at the bottom of the moving frame (4) are respectively meshed with the gears (302) at the outer end of the coating plate (3) for transmission connection.
6. The sample application device for a syphilis non-specific antibody detection test according to claim 1, characterized in that: A fixing rod (102) is fixedly installed at the outer end of the suction cylinder (1), and a set of connecting plates (1011) is fixedly installed on the top of the fixing block (101). A guide sliding hole is provided on the connecting plate (1011), and the guide sliding hole of the connecting plate (1011) at the top of the fixing block (101) is slidably engaged with the fixing rod (102) at the outer end of the suction cylinder (1).
7. The sample application device for a syphilis non-specific antibody detection test according to claim 1, characterized in that: A set of first elastic elements (1021) is sleeved on the fixing rod (102) at the outer end of the suction cylinder (1), and the outer end of the first elastic element (1021) is in contact with the inner end face of the connecting plate (1011) on the fixing block (101).