Multi-point quantitative titration device based on allergen thorn liquid

Abstract

The utility model belongs to the technical field of titration devices, in particular relates to a multipoint quantitative titration device based on allergen stabbing liquid, and aims to solve the problem that medical personnel need to spend a lot of time and energy to complete one-time detection due to the fact that a mode of dropwise adding allergens one by one is generally adopted when various allergen stabbing liquid needs to be added to a patient. According to the technical scheme, the quantitative sampling device comprises a transparent needle cylinder, a handle, a piston and a piston rod, when the quantitative sampling device is used, the pushing or pulling stroke of the piston rod can be preset by changing the position of an adjusting nut, the pulling or injecting amount of liquid in the transparent needle cylinder is accurately controlled, and quantitative sampling is achieved; each pipette can independently suck and dropwise add an allergen solution, so that the problem of cross contamination possibly occurring when different allergens are sucked by using the same pipette is avoided, the risk of cross infection is reduced, the safety and sanitation of detection are guaranteed, and five allergens are sucked and dropwise added at one time, so that the detection time is greatly shortened, and the detection efficiency is improved. The detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a titration device, concretely to a multi-point quantitative titration device based on allergen point prick liquid belongs to titration device technical field. BACKGROUND

[0002] In the field of allergy diagnosis, point prick test is a commonly used and important detection method. It drops a small amount of common allergen on the inside of the patient's arm, then pricks the skin with a special tool, making the allergen contact with the subcutaneous tissue, and judges whether the patient is allergic to the allergen according to the skin reaction.

[0003] The skin allergen point prick pen disclosed in the prior art such as CN219422859U simplifies the operation steps, completes the titration of allergen liquid and point prick at the same time, quantitatively titrates the liquid to make the operation of the allergen test more standardized, designs a special point prick needle to fix the point prick range, facilitates the operation of the operator, reduces the test error caused by different experience levels of different operators, and improves the precision and accuracy of the test. However, when multiple allergen liquids need to be titrated for a patient, the above design generally adopts the way of adding allergen one by one, and the medical staff needs to spend a lot of time and energy to complete a detection, so the detection efficiency is difficult to meet the demand when the number of patients is large. SUMMARY

[0004] The utility model provides a multi-point quantitative titration device based on allergen point prick liquid to solve the problem that when multiple allergen liquids need to be titrated for a patient, the medical staff needs to spend a lot of time and energy to complete a detection.

[0005] The utility model realizes the above-mentioned purpose through the following technical scheme: a multi-point quantitative titration device based on allergen point prick liquid, including transparent syringe, handle, piston and piston rod, handle fixed connection is established in the surface of transparent syringe, the installation position of handle is located at the axis position of the surface of transparent syringe, the inside of transparent syringe is inserted with piston, and piston and transparent syringe are connected slidingly, the upper surface of transparent syringe is inserted with piston rod, and the bottom end of piston rod extends to the inside of transparent syringe, and the bottom end of piston rod and the surface of piston are fixedly connected.

[0006] The surface of transparent syringe is fixedly connected with positioning block, the installation position of positioning block is located at the opposite side of handle, the round hole opened on the surface of positioning block is slidingly connected with adjusting screw rod, the surface of adjusting screw rod is threadedly sleeved with adjusting nut, the installation position of adjusting nut is located at the downside of positioning block, and the top end of adjusting screw rod and piston rod is fixedly connected with pressing plate.

[0007] As a further scheme of the utility model: the surface of the transparent syringe is provided with scale lines, and the scale lines are arranged at the central axis position of the surface of the transparent syringe.

[0008] As a further scheme of the utility model: the reset spring is fixedly connected between the pressing plate and the transparent syringe, the upper end of the reset spring is fixedly connected with the bottom surface of the pressing plate, the bottom end of the reset spring is fixedly connected with the surface of the transparent syringe, and the reset spring is sleeved on the surface of the piston rod.

[0009] As a further scheme of the utility model: the bottom end of the transparent syringe is threadedly connected with a hollow plate, and the bottom surface of the hollow plate is fixedly connected with five liquid suction tubes at equal intervals.

[0010] As a further scheme of the utility model: the side surface of the hollow plate is fixedly sleeved with a rectangular hollow plate, the bottom surface of the rectangular hollow plate is provided with an allergen sample adding box, and four partition plates are fixedly connected in the allergen sample adding box at intervals.

[0011] As a further scheme of the utility model: the allergen sample adding box is brown, a plurality of conical bottom grooves are formed in the bottom of the allergen sample adding box, and the conical bottom grooves are arranged at the middle parts of adjacent partition plates.

[0012] As a further scheme of the utility model: the bottom surface of the rectangular hollow plate is provided with a rectangular groove, a first magnet is arranged in the rectangular groove, the first magnet is fixedly connected with the rectangular hollow plate, a second magnet is fixedly connected with the surface of the allergen sample adding box, and the rectangular hollow plate and the allergen sample adding box are connected through the magnetic attraction between the first magnet and the second magnet.

[0013] The utility model discloses the beneficial effects are:

[0014] 1、The utility model discloses setting up adjusting screw rod, adjusting nut and pressing plate, when using, the position of adjusting nut on adjusting screw rod can be rotated, the distance of pressing plate is pressed is determined according to scale line, and then the stroke of piston rod is advanced or extracted is preset, and the extraction or injection amount of liquid in transparent syringe is accurately controlled, and quantitative sampling is realized.

[0015] 2、The utility model discloses setting up scale line, when using, the liquid taking amount can be directly read through the surface scale of transparent syringe by operating personnel, does not need additional measuring tool or complex conversion, improves liquid taking efficiency, and in the liquid taking process, the liquid residual amount in transparent syringe can be directly observed through scale line, whether the required liquid taking amount is reached is convenient for judging, avoids too much or too little liquid taking, and reduces operation failure.

[0016] 3. The utility model discloses a reset spring is set up, can guarantee that piston rod can be accurate to return to fixed initial position after every sampling, ensure that the starting point of every sampling is consistent, help to improve the accuracy and repeatability of quantitative sampling, reduce the sampling error caused by the inconsistent starting position;

[0017] 4. The utility model discloses a five pipettes are set up, and each pipette independently draws and drops allergen solution, avoids the cross -contamination problem that may appear when using the same dropper to draw different allergens, reduces the cross -infection risk, guarantees the safety and hygienic nature of detection, and draws and drops five allergens once, greatly shortens the detection time, improves the detection efficiency, and the equidistant pipette can make the position of the allergen solution drop in the inside of arm relatively fixed and standard, is convenient for medical staff to observe and compare the reaction of different allergens in the same body part, improves the comparability and accuracy of detection result;

[0018] 5. The utility model discloses an allergen sample adding box and baffle are set up, and the allergen sample adding box is divided into five areas, can store five different allergen solutions respectively, realizes classified storage, and different areas store different allergens, can effectively prevent the mutual confusion between allergens, guarantees the accuracy and reliability of detection, especially when detecting multiple allergens simultaneously, can clearly distinguish different allergens, convenient for record and observation;

[0019] 6. The utility model discloses a rectangular groove, first magnet and second magnet are set up, utilize magnetic attraction, and the allergen sample adding box can be quickly connected with rectangular hollow plate, need not complicated installation steps, improved the efficiency of preparation work before detection, can place the pipette in the allergen sample adding box simultaneously, forms a relatively closed space, reduced the opportunity of pipette exposed to the outside environment, reduced the possibility of dust, bacteria and other pollutants adhered on the pipette, guaranteed the cleanness of pipette, prevented the pollution to allergen solution, thereby ensured the accuracy of detection result. DRAWINGS

[0020] Figure 1 It is the appearance structure schematic drawing of the utility model titration device Figure One ;

[0021] Figure 2 It is the appearance structure schematic drawing of the utility model titration device Figure Two ;

[0022] Figure 3 It is the section structure schematic drawing of the utility model allergen sample adding box;

[0023] Figure 4 It is the section structure schematic drawing of the utility model transparent syringe Figure One ;

[0024] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle;

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the transparent syringe of this utility model. Figure Two ;

[0026] In the diagram: 1. Transparent syringe, 2. Handle, 3. Scale line, 4. Hollow plate, 5. Suction tube, 6. Allergen sample box, 61. Conical bottom groove, 7. Partition, 8. Piston, 9. Piston rod, 10. Return spring, 11. Pressing plate, 12. Positioning block, 13. Adjusting screw, 14. Adjusting nut, 15. Rectangular hollow plate, 16. Rectangular groove, 17. First magnet, 18. Second magnet. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1, as Figures 1 to 6 As shown, a multi-point quantitative titration device based on allergen prick test fluid includes a transparent syringe 1, a handle 2, a piston 8, and a piston rod 9. The handle 2 is fixedly connected to the surface of the transparent syringe 1, and the installation position of the handle 2 is located at the axial position of the surface of the transparent syringe 1. The piston 8 is inserted into the interior of the transparent syringe 1, and the piston 8 and the transparent syringe 1 are slidably connected. The piston rod 9 is inserted into the upper surface of the transparent syringe 1, and the bottom end of the piston rod 9 extends into the interior of the transparent syringe 1. The bottom end of the piston rod 9 is fixedly connected to the surface of the piston 8.

[0029] A positioning block 12 is fixedly connected to the surface of the transparent syringe 1. The positioning block 12 is installed on the opposite side of the handle 2. An adjusting screw 13 is slidably connected in the round hole on the surface of the positioning block 12. An adjusting nut 14 is threaded onto the surface of the adjusting screw 13. The adjusting nut 14 is installed on the lower side of the positioning block 12. A pressing plate 11 is fixedly connected to the top of the adjusting screw 13 and the piston rod 9. The position of the adjusting nut 14 on the adjusting screw 13 can be rotated, and the pressing distance of the pressing plate 11 can be determined according to the scale line 3. In this way, the stroke of the piston rod 9 can be preset to advance or withdraw, so as to accurately control the amount of liquid extracted or injected into the transparent syringe 1 and realize quantitative sampling.

[0030] In addition to comprising all the technical features in Embodiment One, the embodiment also comprises that the surface of the transparent syringe 1 is provided with a scale line 3, and the scale line 3 is arranged at the position of the central axis of the surface of the transparent syringe 1. The operator can directly read the liquid taking amount through the scale on the surface of the transparent syringe 1, without the need for additional measuring tools or complex conversion, thereby improving the liquid taking efficiency. During the liquid taking process, the liquid residual amount in the transparent syringe 1 can be directly observed through the scale line 3, so as to facilitate the judgment of whether the required liquid taking amount is reached, thereby avoiding too much or too little liquid taking, and reducing the operation errors.

[0031] The reset spring 10 is fixedly connected between the pressing plate 11 and the transparent syringe 1. The upper end of the reset spring 10 is fixedly connected with the bottom surface of the pressing plate 11, and the bottom end of the reset spring 10 is fixedly connected with the surface of the transparent syringe 1. The reset spring 10 is sleeved on the surface of the piston rod 9. By arranging the reset spring 10, it can be ensured that the piston rod 9 can accurately return to the fixed initial position after each sampling, so as to ensure that the starting point of each sampling is consistent, thereby helping to improve the accuracy and repeatability of quantitative sampling, and reducing the sampling amount error caused by inconsistent starting positions.

[0032] In addition to comprising all the technical features in Embodiment One, the embodiment also comprises that the bottom end of the transparent syringe 1 is threadedly connected with a hollow plate 4. The bottom surface of the hollow plate 4 is fixedly connected with five liquid suction tubes 5 at equal intervals. Each liquid suction tube 5 independently sucks and drops the allergen solution, thereby avoiding the cross-contamination problem that may occur when the same dropper is used to suck different allergens, reducing the risk of cross-infection, and ensuring the safety and hygiene of detection. Moreover, the sucking and dropping of five allergens can be completed at one time, thereby greatly shortening the detection time and improving the detection efficiency.

[0033] The side surface of the hollow plate 4 is fixedly sleeved with a rectangular hollow plate 15. The bottom surface of the rectangular hollow plate 15 is provided with an allergen sample adding box 6. Four partition plates 7 are fixedly connected in the allergen sample adding box 6 at equal intervals. The four partition plates 7 divide the allergen sample adding box 6 into five areas, which can store five different allergen solutions respectively, thereby realizing classified storage. Different areas store different allergens, which can effectively prevent the mutual confusion of allergens, and ensure the accuracy and reliability of detection. Especially when multiple allergens are detected at the same time, different allergens can be clearly distinguished, thereby facilitating recording and observation.

[0034] It should be noted that the upper plate surface of the rectangular hollow plate 15 can also be movably clamped and connected with a protective cover. When the protective cover is connected with the rectangular hollow plate 15 in position, the transparent syringe 1, the handle 2 and the adjusting screw 13 are all covered in the protective cover, thereby forming protection for the transparent syringe 1 and other components.

[0035] The allergen adding box 6 is set to brown, which can effectively absorb and block most light, reduce the influence of light on the allergen, maintain the stability and activity of the allergen, and ensure the accuracy of the detection result, and the bottom of the allergen adding box 6 is provided with a plurality of conical bottom grooves 61, which are located at the middle parts of the adjacent partitions 7, so that when the pipette 5 is inserted into the allergen adding box 6, the nozzle part of the pipette 5 can be deep into the conical bottom groove 61, thereby facilitating the suction of the liquid medicine.

[0036] The bottom surface of the rectangular hollow plate 15 is provided with a rectangular groove 16, and the first magnet 17 is arranged in the rectangular groove 16. The first magnet 17 is fixedly connected with the rectangular hollow plate 15. The surface of the allergen adding box 6 is fixedly connected with the second magnet 18. The rectangular hollow plate 15 and the allergen adding box 6 are connected through the magnetic attraction between the first magnet 17 and the second magnet 18. By using the magnetic attraction, the allergen adding box 6 and the rectangular hollow plate 15 can be quickly connected without complex installation steps, which improves the efficiency of the preparation work before detection. At the same time, the pipette 5 can be placed in the allergen adding box 6 to form a relatively closed space, which reduces the opportunity of the pipette 5 exposed to the external environment and reduces the possibility of dust, bacteria and other pollutants adhering to the pipette 5, thereby ensuring the cleanliness of the pipette 5 and preventing the allergen solution from being contaminated, so as to ensure the accuracy of the detection result.

[0037] Working principle: before use, separate the allergen adding box 6 from the rectangular hollow plate 15, then pour different allergen solutions into the brown allergen adding box 6 which is divided into five areas by four partitions 7, different areas store different allergens, which can effectively prevent the mutual confusion of allergens and ensure the accuracy and reliability of the detection.

[0038] Then, the operator observes the scale line 3 at the middle axis position on the surface of the transparent syringe 1, rotates the adjusting nut 14, and adjusts the movement of the adjusting nut 14 on the adjusting screw 13. Since the adjusting screw 13 is connected with the pressing plate 11 fixedly connected with the top end of the piston rod 9, and the adjusting screw 13 slides in the circular hole of the positioning block 12 fixed on the surface of the transparent syringe 1, the pressing distance of the pressing plate 11 can be determined according to the position of the adjusting nut 14 and the scale line 3, and the preset stroke of the piston rod 9 can be determined, so that the quantitative setting is completed. By cooperating the adjusting nut 14 with the adjusting screw 13, the stroke of the piston rod 9 can be accurately controlled according to the scale line 3, so that the quantitative sampling is realized, the operation mistake is reduced, and the liquid is not too much or too little.

[0039] When sampling, one hand holds the handle 2 of the transparent syringe 1, and the other hand pulls the pressing plate 11. The piston rod 9 drives the piston 8 to move downward in the transparent syringe 1. At this time, the return spring 10 is compressed. After pressing to the position, the pressing plate 11 is released. At this time, the piston 8 moves upward in the transparent syringe 1 under the elastic force of the return spring 10. Through the five equidistant suction tubes 5, the allergen solution is sucked from the corresponding area of the allergen sample box 6. Each suction tube 5 can independently suck the allergen solution, avoiding the cross contamination problem that may occur when using the same dropper to suck different allergens, reducing the risk of cross infection, and ensuring the safety and hygiene of detection. From the source, reduce the risk of pollution, and during the suction process, the liquid remaining amount in the transparent syringe 1 can be observed through the scale line 3 to ensure that the preset liquid amount is reached.

[0040] Then the titration device is moved to the inside of the patient's arm to be detected. The pressing plate 11 is pushed, and the piston rod 9 drives the piston 8 to move downward. The five suction tubes 5 drop the allergen solution to the inside of the arm. The suction and addition of five allergens are completed at one time, greatly shortening the detection time, improving the detection efficiency, saving time and labor cost, and releasing the pressing plate 11 after completing the addition. The pressing plate 11 and the piston rod 9 return to the initial position under the elastic force of the return spring 10, preparing for the next operation. By setting the return spring 10, the piston rod 9 can accurately return to the fixed initial position after each sampling, ensuring that the starting point of each sampling is consistent, which helps to improve the accuracy and repeatability of quantitative sampling and reduce the sampling error caused by inconsistent starting positions.

[0041] After use, the allergen sample box 6 is connected to the rectangular hollow plate 15 by the magnetic attraction between the first magnet 17 in the rectangular groove 16 at the bottom of the rectangular hollow plate 15 and the second magnet 18 on the surface of the allergen sample box 6. By using magnetic attraction, there is no need for complex installation steps, and it is convenient for quick storage. The suction tube 5 can be placed in the allergen sample box 6, reducing the opportunity of the suction tube 5 being exposed to the external environment, reducing the possibility of dust, bacteria and other pollutants adhering to the suction tube 5, ensuring the cleanliness of the suction tube 5, and facilitating the next use. In addition, the components of the entire device can be disassembled, facilitating cleaning and disinfection after use, convenient operation and maintenance, ensuring that the device can be used continuously and maintaining the detection reliability.

[0042] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0043] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A multi-point quantitative titration device based on allergen prick test fluid, comprising a transparent syringe (1), a handle (2), a piston (8), and a piston rod (9), characterized in that: The handle (2) is fixedly connected to the surface of the transparent syringe (1). The handle (2) is installed at the axial position of the surface of the transparent syringe (1). The piston (8) is inserted into the inside of the transparent syringe (1) and the piston (8) and the transparent syringe (1) are slidably connected. The piston rod (9) is inserted into the upper surface of the transparent syringe (1) and the bottom end of the piston rod (9) extends into the inside of the transparent syringe (1). The bottom end of the piston rod (9) and the surface of the piston (8) are fixedly connected. A positioning block (12) is fixedly connected to the surface of the transparent syringe (1). The positioning block (12) is installed on the opposite side of the handle (2). An adjusting screw (13) is slidably connected in the round hole opened on the surface of the positioning block (12). An adjusting nut (14) is threaded onto the surface of the adjusting screw (13). The adjusting nut (14) is installed on the lower side of the positioning block (12). A pressing plate (11) is fixedly connected to the top of the adjusting screw (13) and the piston rod (9).

2. The multi-point quantitative titration device based on allergen prick test fluid according to claim 1, characterized in that: The surface of the transparent syringe (1) is provided with scale lines (3), and the scale lines (3) are located at the central axis of the surface of the transparent syringe (1).

3. The multi-point quantitative titration device based on allergen prick test fluid according to claim 2, characterized in that: A reset spring (10) is fixedly connected between the pressing plate (11) and the transparent syringe (1). The upper end of the reset spring (10) is fixedly connected to the bottom surface of the pressing plate (11), and the lower end of the reset spring (10) is fixedly connected to the surface of the transparent syringe (1). The reset spring (10) is sleeved on the surface of the piston rod (9). The reset spring (10) is provided.

4. The multi-point quantitative titration device based on allergen prick test fluid according to claim 3, characterized in that: The bottom end of the transparent syringe (1) is threaded with a hollow plate (4), and five suction tubes (5) are fixedly connected at equal intervals on the bottom surface of the hollow plate (4).

5. The multi-point quantitative titration device based on allergen prick test fluid according to claim 4, characterized in that: A rectangular hollow plate (15) is fixedly sleeved on the side surface of the hollow plate (4), and an allergen sample box (6) is provided on the bottom surface of the rectangular hollow plate (15). Four partitions (7) are fixedly connected inside the allergen sample box (6).

6. The multi-point quantitative titration device based on allergen prick test fluid according to claim 5, characterized in that: The allergen sample box (6) is brown, and the bottom of the allergen sample box (6) has several conical bottom grooves (61), which are located in the middle of adjacent partitions (7).

7. The multi-point quantitative titration device based on allergen prick test fluid according to claim 6, characterized in that: The bottom surface of the rectangular hollow plate (15) is provided with a rectangular groove (16), and a first magnet (17) is provided in the rectangular groove (16). The first magnet (17) and the rectangular hollow plate (15) are fixedly connected. A second magnet (18) is fixedly connected to the surface of the allergen sample box (6). The rectangular hollow plate (15) and the allergen sample box (6) are connected by the magnetic attraction between the first magnet (17) and the second magnet (18).

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